author | Claus Gittinger <cg@exept.de> |
Sat, 26 Jun 1999 15:51:33 +0200 | |
changeset 873 | e2b462569e7d |
parent 859 | 0e5dd0e35301 |
child 874 | 7872cc72b96e |
permissions | -rw-r--r-- |
0 | 1 |
" |
4 | 2 |
COPYRIGHT (c) 1989 by Claus Gittinger |
45 | 3 |
All Rights Reserved |
0 | 4 |
|
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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7 |
inclusion of the above copyright notice. This software may not |
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8 |
be provided or otherwise made available to, or used by, any |
|
9 |
other person. No title to or ownership of the software is |
|
10 |
hereby transferred. |
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" |
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||
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Object subclass:#Scanner |
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instanceVariableNames:'typeArray actionArray source lineNr token tokenType tokenPosition |
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tokenValue tokenName tokenLineNr hereChar peekChar peekChar2 |
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requestor exitBlock errorFlag ignoreErrors ignoreWarnings |
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saveComments currentComments collectedSource |
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allowUnderscoreInIdentifier allowDollarInIdentifier |
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scanColonAsKeyword warnSTXSpecialComment |
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warnUnderscoreInIdentifier warnOldStyleAssignment |
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warnCommonMistakes outStream outCol warnSTXNameSpaceUse |
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warnPossibleIncompatibilities warnDollarInIdentifier' |
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classVariableNames:'TypeArray ActionArray AllowUnderscoreInIdentifier Warnings |
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WarnSTXSpecials WarnOldStyleAssignment WarnUnderscoreInIdentifier |
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WarnCommonMistakes WarnPossibleIncompatibilities |
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WarnDollarInIdentifier AllowDollarInIdentifier |
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EmptySourceNotificationSignal' |
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poolDictionaries:'' |
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category:'System-Compiler' |
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! |
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Object subclass:#Comment |
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instanceVariableNames:'commentType commentString' |
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classVariableNames:'' |
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poolDictionaries:'' |
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privateIn:Scanner |
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! |
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!Scanner class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
|
45 | 44 |
All Rights Reserved |
20 | 45 |
|
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
|
48 |
inclusion of the above copyright notice. This software may not |
|
49 |
be provided or otherwise made available to, or used by, any |
|
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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||
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documentation |
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" |
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Scanner reads from a stream and returns individual smalltalk tokens |
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Its main method is #nextToken, which reads and returns the next token |
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Possibly placing additional information (such as tokenValue) into |
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instance variables as a side effect. |
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TODO: |
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some testers noticed, that ST-80's scanner methods are called |
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xLetter, xDigit etc. For code using these (internals), the nextNumber, |
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nextIdentifier etc. methods should be renamed. |
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(to me, these seem to be internal private methods; |
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their public use is not a good idea ..) |
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|
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Scanner is typically subclassed for parsing and #nextToken |
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invoked via #self-sends. |
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This should be changed and scanner ought to be an instance variable |
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of Parser - this allows more flexible use of the scanner/parser |
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framework (i.e. changing the scanner without affecting the parser). |
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|
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[author:] |
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Claus Gittinger |
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|
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[see also:] |
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Parser |
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" |
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! ! |
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!Scanner class methodsFor:'initialization'! |
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binarySelectorCharacters |
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"return a collection of characters which are allowed in |
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binary selectors" |
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|
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^ #( $& $- $+ $= $* $/ $\ $< $> $~ $@ $, $? $!! $| $%) |
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"Created: / 4.1.1997 / 14:13:24 / cg" |
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"Modified: / 27.2.1998 / 02:01:28 / cg" |
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! |
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|
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setupActions |
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"initialize the scanners actionTables - these are used to dispatch |
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into scanner methods as characters are read" |
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|block| |
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101 |
ActionArray := Array new:256. |
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TypeArray := Array new:256. |
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block := [:s :char | s nextNumber]. |
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($0 asciiValue) to:($9 asciiValue) do:[:index | |
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ActionArray at:index put:block |
33 | 107 |
]. |
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block := [:s :char | s nextSpecial]. |
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self binarySelectorCharacters do:[:binop | |
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TypeArray at:(binop asciiValue) put:#special. |
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ActionArray at:(binop asciiValue) put:block |
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]. |
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"/ that one is a special case (both binarySelector AND syntax). |
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TypeArray at:($| asciiValue) put:nil. |
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block := [:s :char | s nextToken:char]. |
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#( $; $. $( $) $[ $] "$!!" $^ $| $_ ) do:[:ch | |
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ActionArray at:(ch asciiValue) put:block |
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]. |
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block := [:s :char | s nextIdentifier]. |
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($a asciiValue) to:($z asciiValue) do:[:index | |
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ActionArray at:index put:block |
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]. |
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($A asciiValue) to:($Z asciiValue) do:[:index | |
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ActionArray at:index put:block |
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]. |
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AllowUnderscoreInIdentifier ifTrue:[ |
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ActionArray at:$_ asciiValue put:block |
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]. |
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"kludge: action is characterToken, but type is special" |
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TypeArray at:($| asciiValue) put:#special. |
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"kludge: action is nextColonOrAssign, but type is special" |
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TypeArray at:($: asciiValue) put:#special. |
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ActionArray at:($' asciiValue) put:[:s :char | s nextString]. |
141 |
ActionArray at:($$ asciiValue) put:[:s :char | s nextCharacter]. |
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ActionArray at:($# asciiValue) put:[:s :char | s nextHash]. |
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ActionArray at:($% asciiValue) put:[:s :char | s nextPrimitive]. |
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ActionArray at:($: asciiValue) put:[:s :char | s nextColonOrAssign] |
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||
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" |
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Scanner setupActions |
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" |
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"Modified: 23.5.1997 / 12:07:55 / cg" |
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! ! |
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!Scanner class methodsFor:'instance creation'! |
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for:aStringOrStream |
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"create & return a new scanner reading from aStringOrStream" |
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158 |
^ (super new) initializeFor:aStringOrStream |
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"Modified: 23.5.1997 / 12:08:42 / cg" |
854 | 161 |
! |
162 |
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163 |
new |
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"create & return a new scanner" |
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165 |
||
859 | 166 |
^ self basicNew initialize. |
854 | 167 |
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"Modified: / 23.5.1997 / 12:08:42 / cg" |
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169 |
"Created: / 26.5.1999 / 12:02:16 / stefan" |
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141 | 170 |
! ! |
171 |
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717 | 172 |
!Scanner class methodsFor:'Signal constants'! |
173 |
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174 |
emptySourceNotificationSignal |
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^ EmptySourceNotificationSignal |
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176 |
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177 |
"Created: / 16.5.1998 / 15:55:14 / cg" |
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! ! |
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179 |
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!Scanner class methodsFor:'class initialization'! |
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181 |
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182 |
initialize |
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183 |
"initialize the classes defaults. Typically, these are changed |
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later in the 'private.rc' file." |
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185 |
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186 |
EmptySourceNotificationSignal isNil ifTrue:[ |
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EmptySourceNotificationSignal := QuerySignal new mayProceed:true. |
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188 |
EmptySourceNotificationSignal notifierString:'empty source given to evaluate'. |
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EmptySourceNotificationSignal nameClass:self message:#emptySourceNotificationSignal. |
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]. |
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191 |
||
192 |
Warnings := true. |
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193 |
WarnSTXSpecials := true. |
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194 |
WarnUnderscoreInIdentifier := true. |
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195 |
WarnDollarInIdentifier := true. |
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196 |
WarnOldStyleAssignment := true. |
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197 |
WarnCommonMistakes := true. |
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198 |
WarnPossibleIncompatibilities := false. |
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AllowUnderscoreInIdentifier := false. |
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200 |
AllowDollarInIdentifier := false. |
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201 |
||
202 |
" |
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203 |
self initialize |
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204 |
" |
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205 |
||
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"Modified: / 16.5.1998 / 15:55:41 / cg" |
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207 |
! ! |
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208 |
||
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!Scanner class methodsFor:'defaults'! |
141 | 210 |
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608 | 211 |
allowDollarInIdentifier |
212 |
"return true, if $-characters are allowed in identifiers. |
|
213 |
Notice, that dollars are NEVER allowed as the first character in an identifier." |
|
214 |
||
215 |
^ AllowDollarInIdentifier |
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216 |
||
217 |
"Created: 7.9.1997 / 01:32:18 / cg" |
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218 |
"Modified: 7.9.1997 / 01:39:44 / cg" |
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219 |
! |
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220 |
||
221 |
allowDollarInIdentifier:aBoolean |
|
222 |
"this allows turning on/off $-characters in identifiers. |
|
223 |
Notice, that dollars are NEVER allowed as the first character in an identifier. |
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224 |
If turned off (the default), dollars are not allowed in identifiers, |
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225 |
but instead are scanned as character-constant prefix. |
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226 |
If turned on, dollars are in identifiers are allowed, while extra |
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227 |
dollars are still scanned as constant character prefix. |
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228 |
If you have to fileIn old VW-Vsn2.x classes, turn this off |
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229 |
before filing them in; i.e.: |
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230 |
Compiler allowDollarInIdentifiers:false" |
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231 |
||
232 |
AllowDollarInIdentifier := aBoolean. |
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233 |
self setupActions |
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234 |
||
235 |
"Created: 7.9.1997 / 01:34:49 / cg" |
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236 |
"Modified: 7.9.1997 / 01:39:30 / cg" |
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237 |
! |
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238 |
||
141 | 239 |
allowUnderscoreInIdentifier |
240 |
"return true, if underscores are allowed in identifiers" |
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241 |
||
242 |
^ AllowUnderscoreInIdentifier |
|
243 |
! |
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244 |
||
245 |
allowUnderscoreInIdentifier:aBoolean |
|
246 |
"this allows turning on/off underscores in identifiers. |
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247 |
If turned off (the default), underscores are not allowed in identifiers, |
|
248 |
but instead scanned as assignment character (old ST/80 syntax). |
|
249 |
If turned on, underscores are in identifiers are allowed, while extra |
|
250 |
underscores are still scanned as assignment. |
|
608 | 251 |
If you have to fileIn old VW-Vsn2.x classes, |
252 |
turn them off with: |
|
253 |
Compiler allowUnderscoreInIdentifiers:false" |
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141 | 254 |
|
255 |
AllowUnderscoreInIdentifier := aBoolean. |
|
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self setupActions |
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608 | 257 |
|
258 |
"Modified: 7.9.1997 / 01:35:19 / cg" |
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141 | 259 |
! |
260 |
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warnCommonMistakes |
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262 |
"return true, if common beginners mistakes are to be warned about" |
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263 |
|
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264 |
^ WarnCommonMistakes |
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! |
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|
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267 |
warnCommonMistakes:aBoolean |
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268 |
"this allows turning on/off warnings about common beginners mistakes. |
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269 |
Those are not really errors in the strict sense, but often lead to |
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270 |
run time errors later. |
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271 |
Examples are: expr or:expr2, where expr2 is not a block. |
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272 |
If you get bored by those warnings, turn them off by adding |
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273 |
a line as: |
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274 |
Compiler warnCommonMistakes:false |
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275 |
in your 'private.rc' file" |
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276 |
|
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WarnCommonMistakes := aBoolean |
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! |
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279 |
|
608 | 280 |
warnDollarInIdentifier |
281 |
"return true, if $-characters in identifiers are to be warned about" |
|
282 |
||
283 |
^ WarnDollarInIdentifier |
|
284 |
||
285 |
"Created: 7.9.1997 / 01:36:17 / cg" |
|
286 |
! |
|
287 |
||
288 |
warnDollarInIdentifier:aBoolean |
|
289 |
"this allows turning on/off warnings about $-characters in identifiers. |
|
290 |
You may find those warnings useful, to make certain that your code |
|
291 |
is portable to other smalltalk versions, which do not allow this |
|
292 |
(i.e. VW releases 2.x and maybe others). |
|
293 |
Notice, that dollars are NEVER allowed as the first character in an identifier. |
|
294 |
If you get bored by those warnings, turn them off by adding |
|
295 |
a line as: |
|
296 |
Compiler warnDollarInIdentifier:false |
|
297 |
in your 'private.rc' file" |
|
298 |
||
299 |
WarnDollarInIdentifier := aBoolean |
|
300 |
||
301 |
"Created: 7.9.1997 / 01:37:42 / cg" |
|
302 |
"Modified: 7.9.1997 / 01:40:02 / cg" |
|
303 |
! |
|
304 |
||
141 | 305 |
warnOldStyleAssignment |
306 |
"return true, if underscore-assignment (pre ST-80v4 syntax) are to be warned about" |
|
307 |
||
308 |
^ WarnOldStyleAssignment |
|
309 |
! |
|
310 |
||
311 |
warnOldStyleAssignment:aBoolean |
|
312 |
"this allows turning on/off warnings about underscore-assignment (pre ST-80v4 syntax). |
|
313 |
If you get bored by those warnings, turn them off by adding |
|
314 |
a line as: |
|
315 |
Compiler warnOldStyleAssignment:false |
|
316 |
in your 'private.rc' file" |
|
317 |
||
318 |
WarnOldStyleAssignment := aBoolean |
|
319 |
! |
|
320 |
||
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321 |
warnPossibleIncompatibilities |
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322 |
"return true, if possible incompatibilities (with other ST systems) |
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323 |
are to be warned about" |
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324 |
|
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325 |
^ WarnPossibleIncompatibilities |
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326 |
|
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327 |
"Modified: 23.5.1997 / 12:02:02 / cg" |
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328 |
! |
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|
329 |
|
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330 |
warnPossibleIncompatibilities:aBoolean |
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|
331 |
"this turns warnings about possible incompatibilities (with other ST systems) |
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|
332 |
on or off. |
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|
333 |
If you get bored by those warnings, turn them off by adding |
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|
334 |
a line as: |
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|
335 |
Compiler warnPossibleIncompatibilities:false |
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|
336 |
in your 'private.rc' file." |
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|
337 |
|
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|
338 |
WarnPossibleIncompatibilities := aBoolean |
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|
339 |
|
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|
340 |
"Created: 23.5.1997 / 12:02:45 / cg" |
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341 |
! |
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342 |
|
141 | 343 |
warnSTXSpecials |
344 |
"return true, if ST/X specials are to be warned about" |
|
345 |
||
346 |
^ WarnSTXSpecials |
|
347 |
! |
|
348 |
||
349 |
warnSTXSpecials:aBoolean |
|
350 |
"this allows turning on/off warnings about stx specials. |
|
351 |
If you get bored by those warnings, turn them off by adding |
|
352 |
a line as: |
|
353 |
Compiler warnSTXSpecials:false |
|
354 |
in your 'private.rc' file" |
|
355 |
||
356 |
WarnSTXSpecials := aBoolean |
|
357 |
! |
|
358 |
||
359 |
warnUnderscoreInIdentifier |
|
360 |
"return true, if underscores in identifiers are to be warned about" |
|
361 |
||
362 |
^ WarnUnderscoreInIdentifier |
|
363 |
! |
|
364 |
||
365 |
warnUnderscoreInIdentifier:aBoolean |
|
366 |
"this allows turning on/off warnings about underscores in identifiers. |
|
608 | 367 |
You may find those warnings useful, to make certain that your code |
368 |
is portable to other smalltalk versions, which do not allow this |
|
369 |
(i.e. VW releases 2.x). |
|
141 | 370 |
If you get bored by those warnings, turn them off by adding |
371 |
a line as: |
|
608 | 372 |
Compiler warnUnderscoreInIdentifier:false |
141 | 373 |
in your 'private.rc' file" |
374 |
||
375 |
WarnUnderscoreInIdentifier := aBoolean |
|
608 | 376 |
|
377 |
"Modified: 7.9.1997 / 01:37:13 / cg" |
|
141 | 378 |
! |
379 |
||
380 |
warnings |
|
381 |
"return true, if any warnings are to be shown" |
|
382 |
||
383 |
^ Warnings |
|
384 |
! |
|
385 |
||
386 |
warnings:aBoolean |
|
526
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|
387 |
"this allows turning on/off all warnings; the default is on. |
141 | 388 |
You can turn off warnings in your 'private.rc' file with |
526
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|
389 |
Compiler warnings:false |
141 | 390 |
" |
391 |
||
392 |
Warnings := aBoolean |
|
526
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|
393 |
|
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|
394 |
"Modified: 23.5.1997 / 12:03:05 / cg" |
141 | 395 |
! ! |
396 |
||
737
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|
397 |
!Scanner class methodsFor:'utility scanning'! |
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|
398 |
|
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|
399 |
scanNumberFrom:aStream |
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|
400 |
"utility - helper for Number>>readSmalltalkSyntaxFrom:" |
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changeset
|
401 |
|
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|
402 |
^ self basicNew scanNumberFrom:aStream |
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changeset
|
403 |
|
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changeset
|
404 |
" |
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changeset
|
405 |
|s| |
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changeset
|
406 |
|
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changeset
|
407 |
s := '12345abcd' readStream. |
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changeset
|
408 |
Transcript showCR:(self scanNumberFrom:s). |
4062aa740959
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diff
changeset
|
409 |
Transcript showCR:(s upToEnd). |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
410 |
" |
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717
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changeset
|
411 |
" |
4062aa740959
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diff
changeset
|
412 |
|s| |
4062aa740959
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diff
changeset
|
413 |
|
4062aa740959
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parents:
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diff
changeset
|
414 |
s := '16rffffxabcd' readStream. |
4062aa740959
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parents:
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diff
changeset
|
415 |
Transcript showCR:(self scanNumberFrom:s). |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
416 |
Transcript showCR:(s upToEnd). |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
417 |
" |
4062aa740959
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parents:
717
diff
changeset
|
418 |
" |
4062aa740959
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717
diff
changeset
|
419 |
|s| |
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parents:
717
diff
changeset
|
420 |
|
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diff
changeset
|
421 |
s := '1.2345abcd' readStream. |
4062aa740959
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parents:
717
diff
changeset
|
422 |
Transcript showCR:(self scanNumberFrom:s). |
4062aa740959
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parents:
717
diff
changeset
|
423 |
Transcript showCR:(s upToEnd). |
4062aa740959
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Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
424 |
" |
4062aa740959
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Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
425 |
" |
4062aa740959
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Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
426 |
|s| |
4062aa740959
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parents:
717
diff
changeset
|
427 |
|
4062aa740959
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parents:
717
diff
changeset
|
428 |
s := '1.abcd' readStream. |
4062aa740959
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parents:
717
diff
changeset
|
429 |
Transcript showCR:(self scanNumberFrom:s). |
4062aa740959
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Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
430 |
Transcript showCR:(s upToEnd). |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
431 |
" |
4062aa740959
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717
diff
changeset
|
432 |
|
4062aa740959
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parents:
717
diff
changeset
|
433 |
"Modified: / 18.6.1998 / 23:10:39 / cg" |
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diff
changeset
|
434 |
! ! |
4062aa740959
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parents:
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diff
changeset
|
435 |
|
98 | 436 |
!Scanner methodsFor:'ST-80 compatibility'! |
437 |
||
438 |
endOfLastToken |
|
526
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parents:
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diff
changeset
|
439 |
"return the position of the token which was just read. |
adb8aed3a691
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parents:
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diff
changeset
|
440 |
This method was required by some PD program. |
adb8aed3a691
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parents:
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diff
changeset
|
441 |
It is not maintained and may be removed without notice." |
adb8aed3a691
added compatibility warnings for '-' without whitespace
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parents:
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diff
changeset
|
442 |
|
98 | 443 |
^ source position |
526
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diff
changeset
|
444 |
|
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parents:
505
diff
changeset
|
445 |
"Modified: 23.5.1997 / 12:14:27 / cg" |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
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parents:
526
diff
changeset
|
446 |
! |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
447 |
|
630 | 448 |
scan:aStringOrStream |
449 |
"initialize the scanner: set the source-stream and |
|
450 |
preread the first token" |
|
451 |
||
452 |
self initializeFor:aStringOrStream. |
|
453 |
self nextToken |
|
454 |
||
455 |
"Created: / 30.10.1997 / 16:59:39 / cg" |
|
456 |
! |
|
457 |
||
458 |
scanToken |
|
459 |
"read the next token from my input stream" |
|
460 |
||
461 |
^ self nextToken |
|
462 |
||
463 |
"Created: / 30.10.1997 / 17:00:16 / cg" |
|
464 |
! |
|
465 |
||
546
db5ce842f64f
added #scanTokens for ST80 compatibility
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diff
changeset
|
466 |
scanTokens:aStringOrStream |
db5ce842f64f
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parents:
526
diff
changeset
|
467 |
"return a collection of symbolic tokens from the passed input" |
db5ce842f64f
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parents:
526
diff
changeset
|
468 |
|
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
469 |
|tokens| |
db5ce842f64f
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parents:
526
diff
changeset
|
470 |
|
db5ce842f64f
added #scanTokens for ST80 compatibility
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parents:
526
diff
changeset
|
471 |
self initializeFor:aStringOrStream. |
db5ce842f64f
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diff
changeset
|
472 |
tokens := OrderedCollection new. |
db5ce842f64f
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parents:
526
diff
changeset
|
473 |
self nextToken. |
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parents:
526
diff
changeset
|
474 |
[token notNil] whileTrue:[ |
db5ce842f64f
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parents:
526
diff
changeset
|
475 |
tokens add:token. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
476 |
self nextToken |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
477 |
]. |
db5ce842f64f
added #scanTokens for ST80 compatibility
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parents:
526
diff
changeset
|
478 |
^ tokens |
db5ce842f64f
added #scanTokens for ST80 compatibility
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parents:
526
diff
changeset
|
479 |
|
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
480 |
" |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
481 |
Scanner new |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
482 |
scanTokens:'Boolean subclass:#True |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
483 |
instanceVariableNames:'''' |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
484 |
classVariableNames:'''' |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
485 |
poolDictionaries:'''' |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
486 |
category:''Kernel-Objects'' |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
487 |
' |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
488 |
" |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
489 |
|
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
490 |
"Modified: 20.6.1997 / 18:22:58 / cg" |
98 | 491 |
! ! |
492 |
||
254
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
493 |
!Scanner methodsFor:'accessing'! |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
494 |
|
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
495 |
comments |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
496 |
"not yet implemented" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
497 |
|
254
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
498 |
^ currentComments |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
499 |
|
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
500 |
"Created: 20.4.1996 / 20:07:01 / cg" |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
501 |
"Modified: 23.5.1997 / 12:14:45 / cg" |
254
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
502 |
! |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
503 |
|
859 | 504 |
lineNumber |
505 |
^ lineNr |
|
506 |
! |
|
507 |
||
795 | 508 |
newSourceStream:aStream |
509 |
source := aStream. |
|
510 |
self nextToken. |
|
511 |
||
512 |
"Created: / 29.10.1998 / 21:59:33 / cg" |
|
513 |
! |
|
514 |
||
254
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
515 |
saveComments:aBoolean |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
516 |
"not yet implemented" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
517 |
|
254
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
518 |
saveComments := aBoolean |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
519 |
|
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
520 |
"Created: 20.4.1996 / 20:03:56 / cg" |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
521 |
"Modified: 23.5.1997 / 12:14:49 / cg" |
254
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
522 |
! |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
523 |
|
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
524 |
sourceStream |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
525 |
^ source |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
526 |
|
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
527 |
"Created: 20.4.1996 / 19:59:58 / cg" |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
528 |
! ! |
edfcf93d821f
changes to allow parsing for comments
Claus Gittinger <cg@exept.de>
parents:
241
diff
changeset
|
529 |
|
81 | 530 |
!Scanner methodsFor:'directives'! |
531 |
||
74 | 532 |
parseDirective |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
533 |
"parse a directive - this is an ST/X special" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
534 |
|
81 | 535 |
|directive packageName namespace list| |
74 | 536 |
|
537 |
source next. |
|
538 |
source skipSeparatorsExceptCR. |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
539 |
hereChar := source peekOrNil. |
74 | 540 |
hereChar isLetter ifTrue:[ |
413 | 541 |
directive := source nextWord. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
542 |
source peekOrNil == $: ifTrue:[ |
413 | 543 |
source next. |
544 |
source skipSeparatorsExceptCR. |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
545 |
hereChar := source peekOrNil. |
74 | 546 |
|
413 | 547 |
" |
548 |
Package: 'name-of-package' |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
549 |
Package: packageId |
413 | 550 |
" |
551 |
directive = 'Package' ifTrue:[ |
|
552 |
packageName := self parseDirectiveStringArg. |
|
553 |
packageName notNil ifTrue:[ |
|
554 |
(requestor respondsTo:#setPackage:) ifTrue:[ |
|
555 |
requestor setPackage:packageName |
|
556 |
]. |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
557 |
] ifFalse:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
558 |
Transcript showCR:'unrecognized ''Package'' directive'. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
559 |
^ false |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
560 |
] |
413 | 561 |
]. |
74 | 562 |
|
413 | 563 |
" |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
564 |
Namespace: 'nameSpaceIdentifier' |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
565 |
Namespace: nameSpaceIdentifier |
413 | 566 |
" |
417 | 567 |
(directive = 'Namespace' |
568 |
or:[directive = 'NameSpace']) ifTrue:[ |
|
413 | 569 |
namespace := self parseDirectiveStringArg. |
570 |
namespace notNil ifTrue:[ |
|
571 |
(requestor respondsTo:#setNameSpace:) ifTrue:[ |
|
572 |
requestor setNameSpace:namespace |
|
426
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
573 |
] ifFalse:[ |
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
574 |
self setNameSpace:namespace |
413 | 575 |
]. |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
576 |
] ifFalse:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
577 |
Transcript showCR:'unrecognized ''NameSpace'' directive'. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
578 |
^ false |
413 | 579 |
]. |
580 |
]. |
|
81 | 581 |
|
413 | 582 |
" |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
583 |
Uses: 'nameSpace1', ... , 'nameSpaceN' |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
584 |
Uses: nameSpaceId1, ... , nameSpaceIdN |
413 | 585 |
" |
586 |
directive = 'Uses' ifTrue:[ |
|
587 |
list := self parseDirectiveStringListArg. |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
588 |
list notNil ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
589 |
(requestor respondsTo:#addNameSpaces:) ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
590 |
requestor addNameSpaces:list |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
591 |
] |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
592 |
] ifFalse:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
593 |
Transcript showCR:'unrecognized ''Uses'' directive'. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
594 |
^ false |
426
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
595 |
] |
413 | 596 |
]. |
597 |
||
598 |
" |
|
599 |
Prerequisites: 'name-of-package', ... , 'name-of-package' |
|
600 |
" |
|
601 |
directive = 'Prerequisites' ifTrue:[ |
|
602 |
list := self parseDirectiveStringListArg. |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
603 |
list notNil ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
604 |
(requestor respondsTo:#requirePackages:) ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
605 |
requestor requirePackages:list |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
606 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
607 |
] ifFalse:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
608 |
Transcript showCR:'unrecognized ''Prerequisites'' directive'. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
609 |
^ false |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
610 |
] |
413 | 611 |
]. |
612 |
] |
|
74 | 613 |
]. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
614 |
hereChar := source peekOrNil. |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
615 |
^ true. |
413 | 616 |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
617 |
"Modified: / 5.3.1998 / 02:55:32 / cg" |
141 | 618 |
! |
619 |
||
620 |
parseDirectiveStringArg |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
621 |
"helper for parsing a directive" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
622 |
|
141 | 623 |
hereChar == $' ifTrue:[ |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
624 |
self nextString. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
625 |
tokenType == #String ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
626 |
^ tokenValue |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
627 |
] |
141 | 628 |
]. |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
629 |
(hereChar isLetter or:[hereChar == $_]) ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
630 |
self nextIdentifier. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
631 |
tokenType == #Identifier ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
632 |
^ tokenName |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
633 |
] |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
634 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
635 |
|
141 | 636 |
^ nil |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
637 |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
638 |
"Modified: 23.5.1997 / 12:15:46 / cg" |
141 | 639 |
! |
640 |
||
641 |
parseDirectiveStringListArg |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
642 |
"helper for parsing a directive" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
643 |
|
141 | 644 |
|list| |
645 |
||
646 |
list := OrderedCollection new. |
|
647 |
||
648 |
[hereChar == $'] whileTrue:[ |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
649 |
list addLast:self parseDirectiveStringArg. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
650 |
source skipSeparatorsExceptCR. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
651 |
hereChar := source peekOrNil. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
652 |
(hereChar == $,) ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
653 |
source next. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
654 |
source skipSeparatorsExceptCR. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
655 |
hereChar := source peekOrNil. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
656 |
]. |
141 | 657 |
]. |
658 |
^ list |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
659 |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
660 |
"Modified: / 5.3.1998 / 02:55:40 / cg" |
0 | 661 |
! ! |
662 |
||
659
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
663 |
!Scanner methodsFor:'dummy - syntax highlighting'! |
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
664 |
|
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
665 |
markCommentFrom:pos1 to:pos2 |
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
666 |
|
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
667 |
"Created: / 31.3.1998 / 13:34:45 / cg" |
661 | 668 |
! |
669 |
||
671 | 670 |
markConstantFrom:pos1 to:pos2 |
671 |
||
672 |
"Created: / 1.4.1998 / 13:02:56 / cg" |
|
673 |
! |
|
674 |
||
661 | 675 |
markStringFrom:pos1 to:pos2 |
676 |
||
677 |
"Created: / 31.3.1998 / 16:37:18 / cg" |
|
671 | 678 |
! |
679 |
||
680 |
markSymbolFrom:pos1 to:pos2 |
|
681 |
||
682 |
"Created: / 1.4.1998 / 12:58:42 / cg" |
|
659
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
683 |
! ! |
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
684 |
|
0 | 685 |
!Scanner methodsFor:'error handling'! |
686 |
||
709 | 687 |
correctableError:message position:pos1 to:pos2 |
688 |
"report an error which can be corrected by compiler - |
|
689 |
return true if correction is wanted" |
|
690 |
||
691 |
|correctIt| |
|
692 |
||
693 |
requestor isNil ifTrue:[ |
|
828 | 694 |
"/ self showErrorMessage:message position:pos1. |
695 |
correctIt := false |
|
709 | 696 |
] ifFalse:[ |
828 | 697 |
correctIt := requestor correctableError:message position:pos1 to:pos2 from:self |
709 | 698 |
]. |
873 | 699 |
correctIt == false ifTrue:[ |
828 | 700 |
exitBlock notNil ifTrue:[exitBlock value] |
709 | 701 |
]. |
702 |
^ correctIt |
|
703 |
||
704 |
"Created: / 13.5.1998 / 16:45:56 / cg" |
|
705 |
! |
|
706 |
||
431
058e1ce760ea
added access to lastTokenLineNr
Claus Gittinger <cg@exept.de>
parents:
426
diff
changeset
|
707 |
lastTokenLineNumber |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
708 |
"return the line number of the token which was just read." |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
709 |
|
431
058e1ce760ea
added access to lastTokenLineNr
Claus Gittinger <cg@exept.de>
parents:
426
diff
changeset
|
710 |
^ tokenLineNr |
058e1ce760ea
added access to lastTokenLineNr
Claus Gittinger <cg@exept.de>
parents:
426
diff
changeset
|
711 |
|
058e1ce760ea
added access to lastTokenLineNr
Claus Gittinger <cg@exept.de>
parents:
426
diff
changeset
|
712 |
"Created: 8.11.1996 / 18:46:36 / cg" |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
713 |
"Modified: 23.5.1997 / 12:16:12 / cg" |
431
058e1ce760ea
added access to lastTokenLineNr
Claus Gittinger <cg@exept.de>
parents:
426
diff
changeset
|
714 |
! |
058e1ce760ea
added access to lastTokenLineNr
Claus Gittinger <cg@exept.de>
parents:
426
diff
changeset
|
715 |
|
0 | 716 |
notifyError:aMessage position:position to:endPos |
717 |
"notify requestor of an error - if there is no requestor |
|
53 | 718 |
put it on the transcript. Requestor is typically the CodeView |
719 |
in which the accept/doIt was triggered, or the PositionableStream |
|
720 |
which does the fileIn. The requestor may decide how to highlight the |
|
721 |
error (and/or to abort the compile). |
|
0 | 722 |
Return the result passed back by the requestor." |
723 |
||
53 | 724 |
ignoreErrors ifFalse:[ |
725 |
requestor isNil ifTrue:[ |
|
726 |
self showErrorMessage:aMessage position:position. |
|
727 |
^ false |
|
728 |
]. |
|
83 | 729 |
^ requestor error:aMessage position:position to:endPos from:self |
0 | 730 |
]. |
53 | 731 |
^ false |
0 | 732 |
! |
733 |
||
734 |
notifyWarning:aMessage position:position to:endPos |
|
735 |
"notify requestor of an warning - if there is no requestor |
|
736 |
put it on the transcript. |
|
737 |
Return the result passed back by the requestor." |
|
738 |
||
53 | 739 |
ignoreWarnings ifFalse:[ |
828 | 740 |
requestor isNil ifTrue:[ |
741 |
"/ self showErrorMessage:aMessage position:position. |
|
742 |
^ false |
|
743 |
]. |
|
744 |
^ requestor warning:aMessage position:position to:endPos from:self |
|
0 | 745 |
]. |
53 | 746 |
^ false |
0 | 747 |
! |
748 |
||
709 | 749 |
parseError:aMessage |
750 |
"report an error" |
|
751 |
||
752 |
^ self parseError:aMessage position:tokenPosition to:nil |
|
753 |
||
754 |
"Created: / 13.5.1998 / 16:45:13 / cg" |
|
755 |
! |
|
756 |
||
757 |
parseError:aMessage position:position |
|
758 |
"report an error" |
|
759 |
||
760 |
^ self parseError:aMessage position:position to:nil |
|
761 |
||
762 |
"Created: / 13.5.1998 / 16:45:05 / cg" |
|
763 |
! |
|
764 |
||
765 |
parseError:aMessage position:position to:endPos |
|
766 |
"report an error" |
|
767 |
||
768 |
|m| |
|
769 |
||
770 |
errorFlag := true. |
|
783
611d7b234115
care for nil error message (can happen when lastError is nil
Claus Gittinger <cg@exept.de>
parents:
737
diff
changeset
|
771 |
m := 'Error: ' , (aMessage ? '???'). |
709 | 772 |
self notifyError:m position:position to:endPos. |
773 |
exitBlock notNil ifTrue:[exitBlock value]. |
|
774 |
^ false |
|
775 |
||
776 |
"Created: / 13.5.1998 / 16:44:55 / cg" |
|
783
611d7b234115
care for nil error message (can happen when lastError is nil
Claus Gittinger <cg@exept.de>
parents:
737
diff
changeset
|
777 |
"Modified: / 28.9.1998 / 19:29:27 / cg" |
709 | 778 |
! |
779 |
||
141 | 780 |
showErrorMessage:aMessage position:pos |
781 |
"show an errormessage on the Transcript" |
|
0 | 782 |
|
141 | 783 |
ignoreErrors ifFalse:[ |
310
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
784 |
Smalltalk silentLoading == true ifFalse:[ |
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
785 |
Transcript showCR:(pos printString , ' [line: ' , tokenLineNr printString , '] ' , aMessage) |
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
786 |
] |
141 | 787 |
] |
274 | 788 |
|
789 |
"Modified: 18.5.1996 / 15:44:35 / cg" |
|
141 | 790 |
! |
791 |
||
792 |
syntaxError:aMessage |
|
793 |
"a syntax error happened - position is not known" |
|
794 |
||
795 |
^ self syntaxError:aMessage position:tokenPosition |
|
0 | 796 |
! |
797 |
||
798 |
syntaxError:aMessage position:position |
|
799 |
"a syntax error happened - only start position is known" |
|
800 |
||
801 |
^ self syntaxError:aMessage position:position to:nil |
|
802 |
! |
|
803 |
||
141 | 804 |
syntaxError:aMessage position:position to:endPos |
805 |
"a syntax error happened" |
|
0 | 806 |
|
141 | 807 |
self notifyError:('Error:' , aMessage) position:position to:endPos. |
808 |
exitBlock notNil ifTrue:[exitBlock value]. |
|
809 |
^ false |
|
87 | 810 |
! |
811 |
||
310
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
812 |
warnCommonMistake:msg at:position |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
813 |
"warn about a common beginners mistake" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
814 |
|
311 | 815 |
self warnCommonMistake:msg position:position to:position |
816 |
||
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
817 |
"Modified: 23.5.1997 / 12:16:34 / cg" |
311 | 818 |
! |
819 |
||
820 |
warnCommonMistake:msg position:pos1 to:pos2 |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
821 |
"warn about a common beginners mistake" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
822 |
|
310
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
823 |
ignoreWarnings ifFalse:[ |
311 | 824 |
warnCommonMistakes ifTrue:[ |
825 |
self |
|
826 |
warning:msg |
|
827 |
position:pos1 to:pos2. |
|
828 |
] |
|
310
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
829 |
] |
311 | 830 |
|
831 |
"Created: 18.7.1996 / 10:28:38 / cg" |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
832 |
"Modified: 23.5.1997 / 12:16:39 / cg" |
310
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
833 |
! |
27ed956b591e
beginners common error warnings
Claus Gittinger <cg@exept.de>
parents:
288
diff
changeset
|
834 |
|
608 | 835 |
warnDollarAt:position |
836 |
"warn about $-character in an identifier" |
|
837 |
||
838 |
ignoreWarnings ifFalse:[ |
|
839 |
warnDollarInIdentifier ifTrue:[ |
|
840 |
self |
|
841 |
warning:'$-characters in identifiers/symbols are nonportable' |
|
842 |
position:position to:position. |
|
843 |
" |
|
844 |
only warn once (per method) |
|
845 |
" |
|
846 |
warnDollarInIdentifier := false |
|
847 |
] |
|
848 |
] |
|
849 |
||
850 |
"Created: 7.9.1997 / 01:50:24 / cg" |
|
851 |
"Modified: 7.9.1997 / 01:51:13 / cg" |
|
852 |
! |
|
853 |
||
87 | 854 |
warnOldStyleAssignmentAt:position |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
855 |
"warn about an oldStyle assignment" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
856 |
|
87 | 857 |
ignoreWarnings ifFalse:[ |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
858 |
warnOldStyleAssignment ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
859 |
self |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
860 |
warning:'old style assignment - please change to use '':=''' |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
861 |
position:position to:position. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
862 |
" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
863 |
only warn once (per method) |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
864 |
" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
865 |
warnOldStyleAssignment := false |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
866 |
] |
87 | 867 |
] |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
868 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
869 |
"Modified: 23.5.1997 / 12:16:48 / cg" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
870 |
! |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
871 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
872 |
warnPossibleIncompatibility:msg position:pos1 to:pos2 |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
873 |
"warn about a possible incompatibility with other ST systems" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
874 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
875 |
ignoreWarnings ifFalse:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
876 |
warnPossibleIncompatibilities ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
877 |
self |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
878 |
warning:('Possible incompatibility.\\' , msg) withCRs |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
879 |
position:pos1 to:pos2. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
880 |
] |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
881 |
] |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
882 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
883 |
"Created: 23.5.1997 / 12:17:54 / cg" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
884 |
"Modified: 23.5.1997 / 12:22:37 / cg" |
87 | 885 |
! |
886 |
||
887 |
warnUnderscoreAt:position |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
888 |
"warn about an underscore in an identifier" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
889 |
|
87 | 890 |
ignoreWarnings ifFalse:[ |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
891 |
warnUnderscoreInIdentifier ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
892 |
self |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
893 |
warning:'underscores in identifiers/symbols are nonportable' |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
894 |
position:position to:position. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
895 |
" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
896 |
only warn once (per method) |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
897 |
" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
898 |
warnUnderscoreInIdentifier := false |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
899 |
] |
87 | 900 |
] |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
901 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
902 |
"Modified: 23.5.1997 / 12:17:06 / cg" |
141 | 903 |
! |
904 |
||
905 |
warning:aMessage |
|
906 |
"a warning - position is not known" |
|
907 |
||
908 |
^ self warning:aMessage position:tokenPosition |
|
909 |
! |
|
910 |
||
911 |
warning:aMessage position:position |
|
912 |
"a warning - only start position is known" |
|
913 |
||
914 |
^ self warning:aMessage position:position to:nil |
|
915 |
! |
|
916 |
||
917 |
warning:aMessage position:position to:endPos |
|
918 |
"a warning" |
|
919 |
||
920 |
^ self notifyWarning:('Warning: ' , aMessage) position:position to:endPos |
|
0 | 921 |
! ! |
922 |
||
17 | 923 |
!Scanner methodsFor:'general scanning'! |
924 |
||
737
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
925 |
scanNumberFrom:aStringOrStream |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
926 |
"scan aSourceString for the next number in smalltalk syntax |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
927 |
Return the number or nil." |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
928 |
|
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
929 |
|oldPos| |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
930 |
|
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
931 |
self initializeFor:aStringOrStream. |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
932 |
oldPos := source position. |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
933 |
self nextToken. |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
934 |
(tokenType == #Integer or:[tokenType == #Float]) ifTrue:[ |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
935 |
^ tokenValue |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
936 |
]. |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
937 |
source position:oldPos. |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
938 |
^ nil. |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
939 |
|
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
940 |
"Created: / 18.6.1998 / 23:05:22 / cg" |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
941 |
"Modified: / 18.6.1998 / 23:11:30 / cg" |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
942 |
! |
4062aa740959
support for readSmalltalkSyntax
Claus Gittinger <cg@exept.de>
parents:
717
diff
changeset
|
943 |
|
17 | 944 |
scanPositionsFor:aTokenString inString:aSourceString |
945 |
"scan aSourceString for occurrances of aTokenString. |
|
946 |
Return a collection of start positions. |
|
947 |
Added for VW compatibility (to support syntax-highlight)." |
|
948 |
||
949 |
|searchType searchName searchValue positions t| |
|
950 |
||
951 |
" |
|
952 |
first, look what kind of token we have to search for |
|
953 |
" |
|
954 |
self initializeFor:(ReadStream on:aTokenString). |
|
955 |
self nextToken. |
|
956 |
searchType := tokenType. |
|
957 |
searchName := tokenName. |
|
958 |
searchValue := tokenValue. |
|
959 |
||
960 |
" |
|
961 |
start the real work ... |
|
962 |
" |
|
963 |
self initializeFor:(ReadStream on:aSourceString). |
|
964 |
positions := OrderedCollection new. |
|
965 |
||
966 |
[(t := self nextToken) ~~ #EOF] whileTrue:[ |
|
45 | 967 |
searchType == t ifTrue:[ |
968 |
(searchName isNil or:[tokenName = searchName]) ifTrue:[ |
|
969 |
(searchValue isNil or:[tokenValue = searchValue]) ifTrue:[ |
|
970 |
positions add:tokenPosition. |
|
971 |
] |
|
972 |
] |
|
973 |
] |
|
17 | 974 |
]. |
975 |
||
976 |
^ positions |
|
977 |
||
978 |
" |
|
30 | 979 |
Scanner new scanPositionsFor:'hello' inString:'foo bar hello baz hello' |
980 |
Scanner new scanPositionsFor:'3.14' inString:'foo 3.145 bar hello 3.14 baz hello 3.14' |
|
981 |
Scanner new scanPositionsFor:'16' inString:'foo 16 bar hello 16r10 baz hello 2r10000' |
|
17 | 982 |
" |
983 |
! ! |
|
984 |
||
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
985 |
!Scanner methodsFor:'initialization'! |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
986 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
987 |
initialize |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
988 |
"initialize the scanner" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
989 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
990 |
errorFlag := false. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
991 |
tokenPosition := 1. |
610 | 992 |
tokenLineNr := lineNr := 1. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
993 |
currentComments := nil. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
994 |
saveComments := false. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
995 |
ignoreErrors := false. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
996 |
ignoreWarnings := Warnings not. |
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
997 |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
998 |
warnSTXSpecialComment := WarnSTXSpecials. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
999 |
warnSTXNameSpaceUse := WarnSTXSpecials. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1000 |
warnUnderscoreInIdentifier := WarnUnderscoreInIdentifier. |
608 | 1001 |
warnDollarInIdentifier := WarnDollarInIdentifier. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1002 |
warnOldStyleAssignment := WarnOldStyleAssignment. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1003 |
warnCommonMistakes := WarnCommonMistakes. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1004 |
warnPossibleIncompatibilities := WarnPossibleIncompatibilities. |
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1005 |
|
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1006 |
allowUnderscoreInIdentifier := AllowUnderscoreInIdentifier. |
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1007 |
allowDollarInIdentifier := AllowDollarInIdentifier. |
785
14d0ec37a754
added hook for subclasses which do not want to scan
Claus Gittinger <cg@exept.de>
parents:
783
diff
changeset
|
1008 |
scanColonAsKeyword := true. |
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1009 |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1010 |
ActionArray isNil ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1011 |
self class setupActions |
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1012 |
]. |
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1013 |
actionArray := ActionArray. |
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1014 |
typeArray := TypeArray. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1015 |
|
785
14d0ec37a754
added hook for subclasses which do not want to scan
Claus Gittinger <cg@exept.de>
parents:
783
diff
changeset
|
1016 |
"Modified: / 17.10.1998 / 15:48:06 / cg" |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1017 |
! |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1018 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1019 |
initializeFor:aStringOrStream |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1020 |
"initialize the new scanner & prepare for reading from aStringOrStream" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1021 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1022 |
self initialize. |
847 | 1023 |
self source:aStringOrStream. |
1024 |
! |
|
1025 |
||
1026 |
source:aStringOrStream |
|
1027 |
"prepare for reading from aStringOrStream" |
|
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1028 |
|
854 | 1029 |
errorFlag := false. |
1030 |
tokenPosition := 1. |
|
1031 |
tokenLineNr := lineNr := 1. |
|
1032 |
currentComments := nil. |
|
1033 |
||
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1034 |
aStringOrStream isStream ifFalse:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1035 |
source := ReadStream on:aStringOrStream |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1036 |
] ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1037 |
source := aStringOrStream. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1038 |
]. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1039 |
|
854 | 1040 |
"Modified: / 26.5.1999 / 12:02:16 / stefan" |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1041 |
! ! |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1042 |
|
141 | 1043 |
!Scanner methodsFor:'private'! |
3 | 1044 |
|
141 | 1045 |
backupPosition |
1046 |
"if reading from a stream, at the end we might have read |
|
1047 |
one token too many" |
|
20 | 1048 |
|
141 | 1049 |
(tokenType == #EOF) ifFalse:[ |
1050 |
source position:tokenPosition |
|
1051 |
] |
|
1052 |
! |
|
15 | 1053 |
|
141 | 1054 |
beginComment |
1055 |
^ self |
|
1056 |
! |
|
1057 |
||
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1058 |
checkForKeyword:string |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1059 |
"check if string is a keyword (as opposed to an identifier). |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1060 |
That is, its one of 'self', 'super', 'nil', 'true', 'false', |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1061 |
or 'thisContext'. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1062 |
'here' is handled elsewhere (since it must be treated as an |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1063 |
identifier, if declared locally." |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1064 |
|
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1065 |
|firstChar| |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1066 |
|
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1067 |
firstChar := string at:1. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1068 |
(firstChar == $s) ifTrue:[ |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1069 |
(string = 'self') ifTrue:[tokenType := #Self. ^true]. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1070 |
(string = 'super') ifTrue:[tokenType := #Super. ^true] |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1071 |
]. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1072 |
(firstChar == $n) ifTrue:[ |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1073 |
(string = 'nil') ifTrue:[tokenType := #Nil. ^true] |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1074 |
]. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1075 |
(firstChar == $t) ifTrue:[ |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1076 |
(string = 'true') ifTrue:[tokenType := #True. ^true]. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1077 |
(string = 'thisContext') ifTrue:[tokenType := #ThisContext. ^true] |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1078 |
]. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1079 |
(firstChar == $f) ifTrue:[ |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1080 |
(string = 'false') ifTrue:[tokenType := #False. ^true] |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1081 |
]. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1082 |
^ false |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1083 |
|
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1084 |
"Modified: / 13.5.1998 / 14:59:55 / cg" |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1085 |
! |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1086 |
|
141 | 1087 |
collectedSource |
1088 |
^ collectedSource |
|
1089 |
! |
|
74 | 1090 |
|
141 | 1091 |
endComment:comment |
1092 |
saveComments ifTrue:[ |
|
1093 |
currentComments isNil ifTrue:[ |
|
1094 |
currentComments := OrderedCollection with:comment |
|
45 | 1095 |
] ifFalse:[ |
141 | 1096 |
currentComments add:comment |
45 | 1097 |
] |
3 | 1098 |
]. |
1099 |
! |
|
1100 |
||
648 | 1101 |
endComment:commentString type:commentType |
1102 |
|comment| |
|
1103 |
||
1104 |
saveComments ifTrue:[ |
|
1105 |
comment := Comment new. |
|
1106 |
comment commentString:commentString; commentType:commentType. |
|
1107 |
||
1108 |
currentComments isNil ifTrue:[ |
|
1109 |
currentComments := OrderedCollection with:comment |
|
1110 |
] ifFalse:[ |
|
1111 |
currentComments add:comment |
|
1112 |
] |
|
1113 |
]. |
|
1114 |
||
1115 |
"Created: / 17.2.1998 / 14:48:49 / cg" |
|
1116 |
! |
|
1117 |
||
141 | 1118 |
ignoreErrors |
1119 |
"turn off notification of errors" |
|
1120 |
||
1121 |
ignoreErrors := true |
|
1122 |
! |
|
0 | 1123 |
|
141 | 1124 |
ignoreWarnings |
1125 |
"turn off notification of warnings" |
|
1126 |
||
1127 |
ignoreWarnings := true |
|
1128 |
! |
|
0 | 1129 |
|
714 | 1130 |
isCommentCharacter:ch |
1131 |
"return true, if ch is the comment-start character. |
|
1132 |
Brought into a separate method to allow for easier subclassing" |
|
1133 |
||
1134 |
^ ch == $" |
|
1135 |
||
1136 |
"Created: / 14.5.1998 / 20:51:42 / cg" |
|
1137 |
"Modified: / 14.5.1998 / 20:53:01 / cg" |
|
1138 |
! |
|
1139 |
||
141 | 1140 |
notifying:anObject |
1141 |
"set the requestor to be notified" |
|
1142 |
||
1143 |
requestor := anObject |
|
426
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
1144 |
! |
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
1145 |
|
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
1146 |
setNameSpace:aNameSpace |
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
1147 |
"/ ignored here |
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
1148 |
|
871231a532fc
remember nameSpace as scanned from directive
Claus Gittinger <cg@exept.de>
parents:
417
diff
changeset
|
1149 |
"Created: 8.11.1996 / 13:33:10 / cg" |
141 | 1150 |
! ! |
1151 |
||
1152 |
!Scanner methodsFor:'reading next token'! |
|
1153 |
||
1154 |
nextCharacter |
|
1155 |
"a $ has been read - return a character token" |
|
1156 |
||
1157 |
|nextChar| |
|
1158 |
||
0 | 1159 |
source next. |
141 | 1160 |
nextChar := source next. |
1161 |
nextChar notNil ifTrue:[ |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1162 |
tokenValue := token := nextChar. |
671 | 1163 |
tokenType := #Character. |
1164 |
"/ self markConstantFrom:tokenPosition to:(tokenPosition + 1). |
|
141 | 1165 |
] ifFalse:[ |
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1166 |
tokenValue := token := nil. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1167 |
tokenType := #EOF |
141 | 1168 |
]. |
0 | 1169 |
^ tokenType |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1170 |
|
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1171 |
"Modified: / 13.5.1998 / 15:09:50 / cg" |
0 | 1172 |
! |
1173 |
||
1174 |
nextColonOrAssign |
|
1175 |
"colon has been read - look for = to make it an assign" |
|
1176 |
||
120 | 1177 |
"/ special kludge for identifier:= (without spaces inbetween) |
1178 |
"/ here we needed two characters lookahead after the identifier ... |
|
1179 |
||
1180 |
peekChar == $= ifTrue:[ |
|
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1181 |
source next. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1182 |
peekChar := nil. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1183 |
tokenType := token := #':='. |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1184 |
^ tokenType |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1185 |
]. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1186 |
|
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1187 |
"/ special kludge for nameSpace:: (without spaces inbetween) |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1188 |
"/ here we needed two characters lookahead after the identifier ... |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1189 |
|
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1190 |
peekChar == $: ifTrue:[ |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1191 |
source next. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1192 |
peekChar := nil. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1193 |
tokenType := token :=#'::'. |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1194 |
^ tokenType |
120 | 1195 |
]. |
1196 |
||
0 | 1197 |
(source nextPeek == $=) ifTrue:[ |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1198 |
source next. |
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1199 |
tokenType := token := $_ |
0 | 1200 |
] ifFalse:[ |
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1201 |
tokenType := token := $: |
0 | 1202 |
]. |
1203 |
^ tokenType |
|
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1204 |
|
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1205 |
"Modified: / 13.5.1998 / 15:10:04 / cg" |
0 | 1206 |
! |
1207 |
||
141 | 1208 |
nextHash |
500 | 1209 |
|nextChar string part| |
0 | 1210 |
|
141 | 1211 |
nextChar := source nextPeek. |
1212 |
nextChar notNil ifTrue:[ |
|
620 | 1213 |
(nextChar isLetterOrDigit |
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1214 |
or:[(allowUnderscoreInIdentifier == true) and:[nextChar == $_]]) ifTrue:[ |
500 | 1215 |
string := ''. |
1216 |
[nextChar notNil |
|
1217 |
and:[nextChar isLetterOrDigit |
|
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1218 |
or:[allowUnderscoreInIdentifier == true |
500 | 1219 |
and:[nextChar == $_]] |
1220 |
] |
|
1221 |
] whileTrue:[ |
|
1222 |
part := source nextAlphaNumericWord. |
|
1223 |
part notNil ifTrue:[ |
|
1224 |
string := string , part. |
|
1225 |
]. |
|
1226 |
nextChar := source peek. |
|
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1227 |
allowUnderscoreInIdentifier == true ifTrue:[ |
500 | 1228 |
nextChar == $_ ifTrue:[ |
1229 |
self warnUnderscoreAt:source position. |
|
1230 |
]. |
|
1231 |
[nextChar == $_] whileTrue:[ |
|
1232 |
string := string copyWith:nextChar. |
|
1233 |
nextChar := source nextPeek. |
|
1234 |
(nextChar isAlphaNumeric) ifTrue:[ |
|
1235 |
string := string , source nextAlphaNumericWord. |
|
1236 |
nextChar := source peek. |
|
1237 |
] |
|
1238 |
]. |
|
1239 |
]. |
|
1240 |
(nextChar == $:) ifFalse:[ |
|
671 | 1241 |
self markSymbolFrom:tokenPosition to:(source position-1). |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1242 |
tokenValue := token := string asSymbol. |
500 | 1243 |
tokenType := #Symbol. |
1244 |
^ tokenType |
|
1245 |
]. |
|
1246 |
string := string copyWith:nextChar. |
|
1247 |
nextChar := source nextPeek |
|
1248 |
]. |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1249 |
tokenValue := token := string asSymbol. |
500 | 1250 |
tokenType := #Symbol. |
1251 |
^ tokenType |
|
1252 |
]. |
|
1253 |
(nextChar == $( ) ifTrue:[ |
|
1254 |
source next. |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1255 |
token := '#('. |
500 | 1256 |
tokenType := #HashLeftParen. |
1257 |
^ tokenType |
|
1258 |
]. |
|
1259 |
(nextChar == $[ ) ifTrue:[ |
|
1260 |
"it seems that ST-80 supports Constant ByteArrays as #[...] |
|
1261 |
(seen in a PD program)" |
|
1262 |
source next. |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1263 |
token := '#['. |
500 | 1264 |
tokenType := #HashLeftBrack. |
1265 |
^ tokenType |
|
1266 |
]. |
|
1267 |
(nextChar == $' ) ifTrue:[ |
|
1268 |
"it seems that ST-80 supports arbitrary symbols as #'...' |
|
1269 |
(seen in a PD program)" |
|
1270 |
self nextString. |
|
671 | 1271 |
self markSymbolFrom:tokenPosition to:(source position-1). |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1272 |
tokenValue := token := tokenValue asSymbol. |
500 | 1273 |
tokenType := #Symbol. |
1274 |
^ tokenType |
|
1275 |
]. |
|
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1276 |
((typeArray at:(nextChar asciiValue)) == #special) ifTrue:[ |
500 | 1277 |
string := source next asString. |
1278 |
nextChar := source peek. |
|
1279 |
nextChar notNil ifTrue:[ |
|
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1280 |
((typeArray at:(nextChar asciiValue)) == #special) ifTrue:[ |
500 | 1281 |
source next. |
1282 |
string := string copyWith:nextChar |
|
1283 |
] |
|
1284 |
]. |
|
671 | 1285 |
self markSymbolFrom:tokenPosition to:(source position-1). |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1286 |
tokenValue := token := string asSymbol. |
500 | 1287 |
tokenType := #Symbol. |
1288 |
^ tokenType |
|
1289 |
] |
|
0 | 1290 |
]. |
141 | 1291 |
"this allows hash to be used as binop - |
1292 |
I dont know, if this is correct ..." |
|
1293 |
||
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1294 |
tokenName := token := '#'. |
0 | 1295 |
tokenType := #BinaryOperator. |
1296 |
^ tokenType |
|
141 | 1297 |
" |
1298 |
self syntaxError:'unexpected end-of-input in Symbol' |
|
500 | 1299 |
position:tokenPosition to:(tokenPosition + 1). |
141 | 1300 |
^ #Error |
1301 |
" |
|
671 | 1302 |
. |
500 | 1303 |
|
671 | 1304 |
"Modified: / 1.4.1998 / 13:02:45 / cg" |
0 | 1305 |
! |
1306 |
||
1307 |
nextId |
|
1308 |
|nextChar string oldString |
|
1309 |
index "{ Class: SmallInteger }" |
|
1310 |
max "{ Class: SmallInteger }" | |
|
1311 |
||
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1312 |
nextChar := source peekOrNil. |
96 | 1313 |
string := String basicNew:20. |
0 | 1314 |
index := 0. |
1315 |
max := 10. |
|
1316 |
[true] whileTrue:[ |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1317 |
(nextChar notNil and:[nextChar isLetterOrDigit]) ifFalse:[ |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1318 |
^ string copyTo:index |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1319 |
]. |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1320 |
(index == max) ifTrue:[ |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1321 |
oldString := string. |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1322 |
string := String basicNew:(max * 2). |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1323 |
string replaceFrom:1 to:max with:oldString. |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1324 |
max := max * 2 |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1325 |
]. |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1326 |
index := index + 1. |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1327 |
string at:index put:nextChar. |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1328 |
nextChar := source nextPeek |
0 | 1329 |
] |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1330 |
|
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1331 |
"Modified: / 5.3.1998 / 02:53:57 / cg" |
0 | 1332 |
! |
1333 |
||
1334 |
nextIdentifier |
|
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1335 |
|nextChar string ok pos| |
0 | 1336 |
|
87 | 1337 |
hereChar == $_ ifTrue:[ |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1338 |
"/ |
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1339 |
"/ no need to check for allowUnderscoreInIdentifier here; |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1340 |
"/ could not arrive here if it was off |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1341 |
"/ |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1342 |
nextChar := source nextPeek. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1343 |
(nextChar isAlphaNumeric or:[nextChar == $_]) ifFalse:[ |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1344 |
"oops: a single underscore is an old-style assignement" |
467
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1345 |
nextChar ~~ $: ifTrue:[ |
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1346 |
self warnOldStyleAssignmentAt:tokenPosition. |
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1347 |
source next. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1348 |
tokenType := token := $_. |
467
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1349 |
^ tokenType |
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1350 |
] |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1351 |
]. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1352 |
string := '_'. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1353 |
self warnUnderscoreAt:tokenPosition. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1354 |
[nextChar == $_] whileTrue:[ |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1355 |
string := string copyWith:$_. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1356 |
nextChar := source nextPeek. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1357 |
]. |
467
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1358 |
nextChar isAlphaNumeric ifTrue:[ |
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1359 |
string := string , source nextAlphaNumericWord. |
feaacb47b0b5
allow degenerated keyword '_:'
Claus Gittinger <cg@exept.de>
parents:
462
diff
changeset
|
1360 |
] |
87 | 1361 |
] ifFalse:[ |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1362 |
string := source nextAlphaNumericWord "self nextId". |
87 | 1363 |
]. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1364 |
nextChar := source peekOrNil. |
87 | 1365 |
|
608 | 1366 |
(nextChar == $_ |
1367 |
or:[nextChar == $$]) ifTrue:[ |
|
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1368 |
ok := (nextChar == $_) ifTrue:[allowUnderscoreInIdentifier] ifFalse:[allowDollarInIdentifier]. |
608 | 1369 |
ok ifTrue:[ |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1370 |
pos := source position. |
608 | 1371 |
nextChar == $_ ifTrue:[ |
610 | 1372 |
self warnUnderscoreAt:pos. |
608 | 1373 |
] ifFalse:[ |
610 | 1374 |
self warnDollarAt:pos. |
608 | 1375 |
]. |
1376 |
[ok] whileTrue:[ |
|
1377 |
string := string copyWith:nextChar. |
|
1378 |
nextChar := source nextPeek. |
|
802
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1379 |
nextChar isNil ifTrue:[ |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1380 |
ok := false |
608 | 1381 |
] ifFalse:[ |
802
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1382 |
(nextChar isAlphaNumeric) ifTrue:[ |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1383 |
string := string , source nextAlphaNumericWord. |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1384 |
nextChar := source peekOrNil. |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1385 |
]. |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1386 |
(nextChar == $_) ifTrue:[ |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1387 |
ok := allowUnderscoreInIdentifier |
608 | 1388 |
] ifFalse:[ |
802
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1389 |
(nextChar == $$) ifTrue:[ |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1390 |
ok := allowDollarInIdentifier |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1391 |
] ifFalse:[ |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1392 |
ok := false |
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1393 |
] |
608 | 1394 |
] |
1395 |
] |
|
1396 |
]. |
|
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1397 |
]. |
60 | 1398 |
]. |
1399 |
||
785
14d0ec37a754
added hook for subclasses which do not want to scan
Claus Gittinger <cg@exept.de>
parents:
783
diff
changeset
|
1400 |
(nextChar == $: and:[scanColonAsKeyword]) ifTrue:[ |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1401 |
source next. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1402 |
(source peekOrNil == $=) ifFalse:[ |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1403 |
(source peekOrNil == $:) ifFalse:[ |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1404 |
tokenName := token := string copyWith:nextChar. |
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1405 |
tokenType := #Keyword. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1406 |
^ self |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1407 |
]. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1408 |
peekChar := $:. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1409 |
peekChar2 := $:. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1410 |
] ifTrue:[ |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1411 |
peekChar := $:. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1412 |
peekChar2 := $=. |
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1413 |
] |
0 | 1414 |
]. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1415 |
|
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1416 |
nextChar == $- ifTrue:[ |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1417 |
pos := source position. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1418 |
self |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1419 |
warnPossibleIncompatibility:'add a space before ''-'' for compatibility with other systems' |
610 | 1420 |
position:pos to:pos. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1421 |
]. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1422 |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1423 |
tokenName := token := string. |
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1424 |
(self checkForKeyword:string) ifTrue:[^ tokenType]. |
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1425 |
|
0 | 1426 |
tokenType := #Identifier. |
1427 |
^ tokenType |
|
120 | 1428 |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1429 |
"Created: / 13.9.1995 / 12:56:42 / claus" |
802
5c6e7db91d5f
bug fix if source ends with underline(-identifier)
Claus Gittinger <cg@exept.de>
parents:
795
diff
changeset
|
1430 |
"Modified: / 2.2.1999 / 22:29:57 / cg" |
0 | 1431 |
! |
1432 |
||
141 | 1433 |
nextMantissa:radix |
1434 |
|nextChar value factor| |
|
1435 |
||
1436 |
value := 0. |
|
1437 |
factor := 1.0 / radix. |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1438 |
nextChar := source peekOrNil. |
141 | 1439 |
[(nextChar notNil and:[nextChar isDigitRadix:radix])] whileTrue:[ |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1440 |
value := value + (nextChar digitValue * factor). |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1441 |
factor := factor / radix. |
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1442 |
nextChar := source nextPeek |
141 | 1443 |
]. |
1444 |
^ value |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1445 |
|
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1446 |
"Modified: / 5.3.1998 / 02:54:11 / cg" |
141 | 1447 |
! |
1448 |
||
1449 |
nextNumber |
|
441 | 1450 |
|nextChar value s tokenRadix| |
141 | 1451 |
|
1452 |
tokenRadix := 10. |
|
1453 |
value := Integer readFrom:source radix:tokenRadix. |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1454 |
nextChar := source peekOrNil. |
141 | 1455 |
(nextChar == $r) ifTrue:[ |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1456 |
tokenRadix := value. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1457 |
source next. |
820
5db3668f751d
syntax error if radix is not in 2..36
Claus Gittinger <cg@exept.de>
parents:
802
diff
changeset
|
1458 |
|
5db3668f751d
syntax error if radix is not in 2..36
Claus Gittinger <cg@exept.de>
parents:
802
diff
changeset
|
1459 |
(tokenRadix between:2 and:36) ifFalse:[ |
5db3668f751d
syntax error if radix is not in 2..36
Claus Gittinger <cg@exept.de>
parents:
802
diff
changeset
|
1460 |
self syntaxError:'bad radix (must be 2 .. 36)' |
5db3668f751d
syntax error if radix is not in 2..36
Claus Gittinger <cg@exept.de>
parents:
802
diff
changeset
|
1461 |
position:tokenPosition to:(source position - 1). |
5db3668f751d
syntax error if radix is not in 2..36
Claus Gittinger <cg@exept.de>
parents:
802
diff
changeset
|
1462 |
]. |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1463 |
s := 1. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1464 |
source peekOrNil == $- ifTrue:[ |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1465 |
source next. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1466 |
s := -1 |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1467 |
]. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1468 |
value := Integer readFrom:source radix:tokenRadix. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1469 |
value := value * s. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1470 |
nextChar := source peekOrNil |
141 | 1471 |
]. |
821
bc543afcc1e6
give a warning if radix>14 and an e/E is encountered in a float
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1472 |
|
141 | 1473 |
(nextChar == $.) ifTrue:[ |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1474 |
nextChar := source nextPeek. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1475 |
(nextChar notNil and:[nextChar isDigitRadix:tokenRadix]) ifTrue:[ |
821
bc543afcc1e6
give a warning if radix>14 and an e/E is encountered in a float
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1476 |
(tokenRadix > 14 and:[nextChar == $e or:[nextChar == $E]]) ifTrue:[ |
bc543afcc1e6
give a warning if radix>14 and an e/E is encountered in a float
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1477 |
self warning:'float with radix > 14 - (e/E are valid digits; not exponent-leaders)' |
bc543afcc1e6
give a warning if radix>14 and an e/E is encountered in a float
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1478 |
position:tokenPosition to:(source position - 1). |
bc543afcc1e6
give a warning if radix>14 and an e/E is encountered in a float
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1479 |
]. |
bc543afcc1e6
give a warning if radix>14 and an e/E is encountered in a float
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1480 |
|
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1481 |
value := value asFloat + (self nextMantissa:tokenRadix). |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1482 |
nextChar := source peekOrNil |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1483 |
] ifFalse:[ |
610 | 1484 |
"/ nextChar == (Character cr) ifTrue:[ |
1485 |
"/ lineNr := lineNr + 1. |
|
1486 |
"/ ]. |
|
499 | 1487 |
nextChar := peekChar := $.. |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1488 |
] |
141 | 1489 |
]. |
821
bc543afcc1e6
give a warning if radix>14 and an e/E is encountered in a float
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1490 |
|
141 | 1491 |
((nextChar == $e) or:[nextChar == $E]) ifTrue:[ |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1492 |
nextChar := source nextPeek. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1493 |
(nextChar notNil and:[(nextChar isDigitRadix:tokenRadix) or:['+-' includes:nextChar]]) ifTrue:[ |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1494 |
s := 1. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1495 |
(nextChar == $+) ifTrue:[ |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1496 |
nextChar := source nextPeek |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1497 |
] ifFalse:[ |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1498 |
(nextChar == $-) ifTrue:[ |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1499 |
nextChar := source nextPeek. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1500 |
s := s negated |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1501 |
] |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1502 |
]. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1503 |
value := value asFloat |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1504 |
* (10.0 raisedToInteger:((Integer readFrom:source radix:tokenRadix) * s)) |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1505 |
] |
141 | 1506 |
]. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1507 |
nextChar == $- ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1508 |
self |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1509 |
warnPossibleIncompatibility:'add a space before ''-'' for compatibility with other systems' |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1510 |
position:(source position) to:source position. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1511 |
]. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1512 |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1513 |
tokenValue := token := value. |
141 | 1514 |
(value isMemberOf:Float) ifTrue:[ |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1515 |
(nextChar == $d) ifTrue:[ |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1516 |
source next |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1517 |
]. |
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1518 |
tokenType := #Float |
141 | 1519 |
] ifFalse:[ |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1520 |
tokenType := #Integer |
141 | 1521 |
]. |
671 | 1522 |
"/ self markConstantFrom:tokenPosition to:(source position - 1). |
141 | 1523 |
^ tokenType |
313
ee72a11af9a2
handle trailing 'd' after a float (ST-80 compatible Doubles)
Claus Gittinger <cg@exept.de>
parents:
311
diff
changeset
|
1524 |
|
671 | 1525 |
"Modified: / 1.4.1998 / 13:06:28 / cg" |
141 | 1526 |
! |
1527 |
||
0 | 1528 |
nextPrimitive |
1529 |
|nextChar inPrimitive string |
|
1530 |
index "{ Class: SmallInteger }" |
|
1531 |
len "{ Class: SmallInteger }" | |
|
1532 |
||
1533 |
nextChar := source nextPeek. |
|
1534 |
string := String new:500. |
|
1535 |
len := 500. |
|
1536 |
index := 1. |
|
1537 |
(nextChar == ${) ifTrue:[ |
|
505
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1538 |
nextChar := source nextPeek. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1539 |
inPrimitive := true. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1540 |
[inPrimitive] whileTrue:[ |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1541 |
[nextChar == $%] whileFalse:[ |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1542 |
nextChar isNil ifTrue:[ |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1543 |
self syntaxError:'unterminated primitive' |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1544 |
position:tokenPosition to:source position. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1545 |
^ #Error |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1546 |
]. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1547 |
string at:index put:nextChar. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1548 |
(index == len) ifTrue:[ |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1549 |
string := string , (String new:len). |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1550 |
len := len * 2 |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1551 |
]. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1552 |
index := index + 1. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1553 |
nextChar := source next |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1554 |
]. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1555 |
(source peekOrNil == $}) ifTrue:[ |
505
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1556 |
inPrimitive := false |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1557 |
] ifFalse:[ |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1558 |
string at:index put:nextChar. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1559 |
(index == len) ifTrue:[ |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1560 |
string := string , (String new:len). |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1561 |
len := len * 2 |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1562 |
]. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1563 |
index := index + 1. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1564 |
nextChar := source next |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1565 |
] |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1566 |
]. |
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1567 |
source next. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1568 |
tokenValue := token := string copyTo:(index - 1). |
505
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1569 |
tokenType := #Primitive. |
610 | 1570 |
lineNr := lineNr + (tokenValue occurrencesOf:(Character cr)). |
505
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1571 |
^ tokenType |
0 | 1572 |
]. |
1573 |
||
1574 |
"a % alone is a binary operator" |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1575 |
tokenName := token := '%'. |
0 | 1576 |
tokenType := #BinaryOperator. |
1577 |
^ tokenType. |
|
1578 |
" |
|
1579 |
self syntaxError:('invalid character: ''' , nextChar asString , '''') |
|
505
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1580 |
position:tokenPosition to:(tokenPosition + 1). |
0 | 1581 |
^ #Error |
1582 |
" |
|
505
793f88ee6269
handle end of input while scanning a primitive
Claus Gittinger <cg@exept.de>
parents:
500
diff
changeset
|
1583 |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1584 |
"Modified: / 5.3.1998 / 02:54:43 / cg" |
0 | 1585 |
! |
1586 |
||
141 | 1587 |
nextSpecial |
1588 |
"a special character has been read, look for another one. |
|
1589 |
also -number is handled here" |
|
1590 |
||
1591 |
|firstChar secondChar thirdChar string p| |
|
0 | 1592 |
|
141 | 1593 |
firstChar := source next. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1594 |
secondChar := source peekOrNil. |
241
418eb41350d3
no debugger when parsing '-' (which is wrong anyway ...)
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
|
1595 |
((firstChar == $-) and:[secondChar notNil]) ifTrue:[ |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1596 |
secondChar isDigit ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1597 |
self nextNumber. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1598 |
tokenValue := token := tokenValue negated. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1599 |
^ tokenType |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1600 |
] |
0 | 1601 |
]. |
141 | 1602 |
string := firstChar asString. |
1603 |
secondChar notNil ifTrue:[ |
|
708
11837544357d
made scanner tables instVars - for easier subclassability
Claus Gittinger <cg@exept.de>
parents:
707
diff
changeset
|
1604 |
((typeArray at:(secondChar asciiValue)) == #special) ifTrue:[ |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1605 |
(secondChar == $-) ifTrue:[ |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1606 |
"special- look if minus belongs to number following" |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1607 |
p := source position. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1608 |
source next. |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1609 |
thirdChar := source peekOrNil. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1610 |
source position:p. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1611 |
thirdChar isDigit ifTrue:[ |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1612 |
tokenName := token := string. |
526
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1613 |
tokenType := #BinaryOperator. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1614 |
self |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1615 |
warnPossibleIncompatibility:'add a space before ''-'' for compatibility with other ST systems' |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1616 |
position:p-1 |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1617 |
to:p. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1618 |
^ tokenType |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1619 |
] |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1620 |
]. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1621 |
source next. |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1622 |
string := string copyWith:secondChar |
adb8aed3a691
added compatibility warnings for '-' without whitespace
Claus Gittinger <cg@exept.de>
parents:
505
diff
changeset
|
1623 |
]. |
141 | 1624 |
]. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1625 |
tokenName := token := string. |
45 | 1626 |
tokenType := #BinaryOperator. |
3 | 1627 |
^ tokenType |
241
418eb41350d3
no debugger when parsing '-' (which is wrong anyway ...)
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
|
1628 |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1629 |
"Modified: / 5.3.1998 / 02:54:54 / cg" |
0 | 1630 |
! |
1631 |
||
264
f10298cba622
oops - corrupted version checked in
Claus Gittinger <cg@exept.de>
parents:
263
diff
changeset
|
1632 |
nextString |
f10298cba622
oops - corrupted version checked in
Claus Gittinger <cg@exept.de>
parents:
263
diff
changeset
|
1633 |
|nextChar string pos |
0 | 1634 |
index "{ Class: SmallInteger }" |
1635 |
len "{ Class: SmallInteger }" |
|
1636 |
inString| |
|
1637 |
||
96 | 1638 |
string := String basicNew:20. |
0 | 1639 |
len := 20. |
1640 |
index := 1. |
|
1641 |
pos := source position. |
|
1642 |
source next. |
|
1643 |
nextChar := source next. |
|
1644 |
inString := true. |
|
1645 |
||
1646 |
[inString] whileTrue:[ |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1647 |
nextChar isNil ifTrue:[ |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1648 |
self syntaxError:'unexpected end-of-input in String' |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1649 |
position:pos to:(source position - 1). |
661 | 1650 |
self markStringFrom:pos to:source position-1. |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1651 |
token := nil. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1652 |
tokenType := #EOF. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1653 |
^ tokenType |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1654 |
]. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1655 |
(nextChar == Character cr) ifTrue:[ |
610 | 1656 |
lineNr := lineNr + 1 |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1657 |
]. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1658 |
(nextChar == Character quote) ifTrue:[ |
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1659 |
(source peekOrNil == Character quote) ifTrue:[ |
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1660 |
source next |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1661 |
] ifFalse:[ |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1662 |
inString := false |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1663 |
] |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1664 |
]. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1665 |
inString ifTrue:[ |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1666 |
string at:index put:nextChar. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1667 |
(index == len) ifTrue:[ |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1668 |
string := string , (String new:len). |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1669 |
len := len * 2 |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1670 |
]. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1671 |
index := index + 1. |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1672 |
nextChar := source next |
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1673 |
] |
0 | 1674 |
]. |
661 | 1675 |
self markStringFrom:pos to:source position-1. |
1676 |
||
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1677 |
tokenValue := token := string copyTo:(index - 1). |
0 | 1678 |
tokenType := #String. |
1679 |
^ tokenType |
|
546
db5ce842f64f
added #scanTokens for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
526
diff
changeset
|
1680 |
|
661 | 1681 |
"Modified: / 31.3.1998 / 17:33:14 / cg" |
141 | 1682 |
! |
1683 |
||
264
f10298cba622
oops - corrupted version checked in
Claus Gittinger <cg@exept.de>
parents:
263
diff
changeset
|
1684 |
nextToken |
f10298cba622
oops - corrupted version checked in
Claus Gittinger <cg@exept.de>
parents:
263
diff
changeset
|
1685 |
"return the next token from the source-stream" |
141 | 1686 |
|
793
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1687 |
|skipping actionBlock v ch tok| |
141 | 1688 |
|
793
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1689 |
[true] whileTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1690 |
peekChar notNil ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1691 |
peekChar isSeparator ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1692 |
peekChar == (Character cr) ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1693 |
lineNr := lineNr + 1. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1694 |
]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1695 |
peekChar := peekChar2. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1696 |
peekChar2 := nil. |
603
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1697 |
]. |
793
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1698 |
]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1699 |
|
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1700 |
peekChar notNil ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1701 |
ch := peekChar. |
603
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1702 |
peekChar := peekChar2. |
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1703 |
peekChar2 := nil. |
793
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1704 |
hereChar := nil. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1705 |
] ifFalse:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1706 |
skipping := true. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1707 |
[skipping] whileTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1708 |
|
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1709 |
outStream notNil ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1710 |
hereChar := source peekOrNil. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1711 |
[(hereChar == Character space) |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1712 |
or:[hereChar isSeparator] |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1713 |
] whileTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1714 |
source next. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1715 |
outStream space. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1716 |
outCol := outCol + 1. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1717 |
] |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1718 |
] ifFalse:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1719 |
hereChar := source skipSeparatorsExceptCR. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1720 |
]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1721 |
|
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1722 |
hereChar == (Character cr) ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1723 |
lineNr := lineNr + 1. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1724 |
source next. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1725 |
outStream notNil ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1726 |
outStream cr. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1727 |
outCol := 1 |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1728 |
] |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1729 |
] ifFalse:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1730 |
hereChar == (Character return) ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1731 |
outStream notNil ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1732 |
outStream nextPut:hereChar. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1733 |
outCol := 1 |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1734 |
]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1735 |
source next. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1736 |
] ifFalse:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1737 |
(self isCommentCharacter:hereChar) ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1738 |
"start of a comment" |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1739 |
|
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1740 |
self skipComment. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1741 |
hereChar := source peekOrNil. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1742 |
] ifFalse:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1743 |
skipping := false |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1744 |
] |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1745 |
] |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1746 |
] |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1747 |
]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1748 |
hereChar isNil ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1749 |
token := nil. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1750 |
tokenType := #EOF. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1751 |
^ tokenType |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1752 |
]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1753 |
ch := hereChar |
603
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1754 |
]. |
793
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1755 |
tokenPosition := source position. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1756 |
tokenLineNr := lineNr. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1757 |
|
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1758 |
(v := ch asciiValue) == 0 ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1759 |
v := Character space asciiValue |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1760 |
]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1761 |
actionBlock := actionArray at:v. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1762 |
actionBlock notNil ifTrue:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1763 |
tok := actionBlock value:self value:ch. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1764 |
tok notNil ifTrue:[^ tok]. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1765 |
] ifFalse:[ |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1766 |
self syntaxError:('invalid character: ''' , ch asString , ''' ', |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1767 |
'(' , v printString , ')') |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1768 |
position:tokenPosition to:tokenPosition. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1769 |
source next. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1770 |
tokenName := nil. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1771 |
tokenType := token := #Error. |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1772 |
^ #Error |
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1773 |
] |
603
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1774 |
]. |
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1775 |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1776 |
"Modified: / 13.9.1995 / 12:56:14 / claus" |
793
3ee3ebe0145e
allow for action to skip something and continue in nextToken
Claus Gittinger <cg@exept.de>
parents:
785
diff
changeset
|
1777 |
"Modified: / 22.10.1998 / 22:15:27 / cg" |
141 | 1778 |
! |
1779 |
||
264
f10298cba622
oops - corrupted version checked in
Claus Gittinger <cg@exept.de>
parents:
263
diff
changeset
|
1780 |
nextToken:aCharacter |
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1781 |
tokenType := token := aCharacter. |
603
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1782 |
hereChar notNil ifTrue:[source next]. |
141 | 1783 |
^ tokenType |
603
021722b8a427
correctly scan trailing period after a number in a block (as in x := x + 1.]
Claus Gittinger <cg@exept.de>
parents:
546
diff
changeset
|
1784 |
|
707
2fe4b3a7708a
extracted keyword detection into a separate method for easier
Claus Gittinger <cg@exept.de>
parents:
671
diff
changeset
|
1785 |
"Modified: / 13.5.1998 / 15:10:23 / cg" |
141 | 1786 |
! |
1787 |
||
264
f10298cba622
oops - corrupted version checked in
Claus Gittinger <cg@exept.de>
parents:
263
diff
changeset
|
1788 |
skipComment |
648 | 1789 |
|commentStream commentType startPos| |
141 | 1790 |
|
1791 |
saveComments ifTrue:[ |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1792 |
commentStream := WriteStream on:''. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1793 |
self beginComment. |
141 | 1794 |
]. |
1795 |
||
1796 |
outStream notNil ifTrue:[ |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1797 |
outStream nextPut:Character doubleQuote. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1798 |
outCol := outCol + 1 |
141 | 1799 |
]. |
1800 |
||
1801 |
startPos := source position. |
|
1802 |
source next. |
|
656
e4249b285fd8
using #peekOrNil makes it some 10% faster when scanning
Claus Gittinger <cg@exept.de>
parents:
650
diff
changeset
|
1803 |
hereChar := source peekOrNil. |
141 | 1804 |
|
1805 |
" |
|
1806 |
special ST/X addition: |
|
1807 |
a $/ right after the initial double quote makes it an up-to-end-of-line comment, |
|
1808 |
which is very useful to comment out parts of filed-in source code. |
|
1809 |
Since this is non-standard, use it in very rare cases only. |
|
1810 |
(maybe the upcoming ansi-standard adds something similar - in this case, I will |
|
1811 |
change it without notice)" |
|
1812 |
||
1813 |
hereChar == $/ ifTrue:[ |
|
648 | 1814 |
commentType := #eolComment. |
1815 |
||
1816 |
hereChar := source nextPeek. |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1817 |
[hereChar notNil and:[hereChar ~~ Character cr]] whileTrue:[ |
648 | 1818 |
commentStream notNil ifTrue:[ |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1819 |
commentStream nextPut:hereChar |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1820 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1821 |
outStream notNil ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1822 |
outStream nextPut:hereChar. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1823 |
outCol := outCol + 1 |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1824 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1825 |
hereChar := source nextPeek. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1826 |
]. |
659
2bbc270156c7
support for syntaxHighlighting
Claus Gittinger <cg@exept.de>
parents:
656
diff
changeset
|
1827 |
self markCommentFrom:startPos to:(source position). |
610 | 1828 |
lineNr := lineNr + 1. |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1829 |
ignoreWarnings ifFalse:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1830 |
warnSTXSpecialComment ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1831 |
self warning:'end-of-line comments are a nonstandard feature of ST/X' |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1832 |
position:startPos to:(source position). |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1833 |
" |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1834 |
only warn once |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1835 |
" |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1836 |
warnSTXSpecialComment := false |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1837 |
] |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1838 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1839 |
outStream notNil ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1840 |
outStream cr. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1841 |
outCol := 1 |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1842 |
]. |
141 | 1843 |
] ifFalse:[ |
648 | 1844 |
commentType := #regularComment. |
1845 |
||
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1846 |
hereChar == ${ ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1847 |
" |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1848 |
special ST/X addition: |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1849 |
a ${ right after the initial double quote starts a directive |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1850 |
" |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1851 |
self parseDirective |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1852 |
]. |
141 | 1853 |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1854 |
[hereChar notNil and:[hereChar ~~ (Character doubleQuote)]] whileTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1855 |
hereChar == (Character cr) ifTrue:[ |
610 | 1856 |
lineNr := lineNr + 1. |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1857 |
]. |
648 | 1858 |
commentStream notNil ifTrue:[ |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1859 |
commentStream nextPut:hereChar |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1860 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1861 |
outStream notNil ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1862 |
outStream nextPut:hereChar. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1863 |
outCol := outCol + 1 |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1864 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1865 |
hereChar := source nextPeek |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1866 |
]. |
666 | 1867 |
|
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1868 |
hereChar isNil ifTrue:[ |
666 | 1869 |
self markCommentFrom:startPos to:(source size). |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1870 |
self warning:'unclosed comment' position:startPos to:(source position) |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1871 |
] ifFalse:[ |
666 | 1872 |
self markCommentFrom:startPos to:(source position). |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1873 |
outStream notNil ifTrue:[ |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1874 |
outStream nextPut:(Character doubleQuote). |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1875 |
outCol := outCol + 1 |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1876 |
]. |
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1877 |
] |
141 | 1878 |
]. |
1879 |
||
1880 |
"skip final dQuote or cr" |
|
1881 |
source next. |
|
1882 |
||
1883 |
saveComments ifTrue:[ |
|
648 | 1884 |
self endComment:(commentStream contents) type:commentType. |
141 | 1885 |
]. |
460
c023e3713433
handle identifier in directives;
Claus Gittinger <cg@exept.de>
parents:
453
diff
changeset
|
1886 |
|
666 | 1887 |
"Modified: / 31.3.1998 / 23:45:26 / cg" |
648 | 1888 |
! ! |
1889 |
||
1890 |
!Scanner::Comment methodsFor:'accessing'! |
|
1891 |
||
1892 |
commentString |
|
1893 |
"return the value of the instance variable 'commentString' (automatically generated)" |
|
1894 |
||
1895 |
^ commentString |
|
1896 |
||
1897 |
"Created: / 17.2.1998 / 14:44:33 / cg" |
|
1898 |
! |
|
1899 |
||
1900 |
commentString:something |
|
1901 |
"set the value of the instance variable 'commentString' (automatically generated)" |
|
1902 |
||
1903 |
commentString := something. |
|
1904 |
||
1905 |
"Created: / 17.2.1998 / 14:44:33 / cg" |
|
1906 |
! |
|
1907 |
||
1908 |
commentType |
|
1909 |
"return the value of the instance variable 'commentType' (automatically generated)" |
|
1910 |
||
1911 |
^ commentType |
|
1912 |
||
1913 |
"Created: / 17.2.1998 / 14:44:33 / cg" |
|
1914 |
! |
|
1915 |
||
1916 |
commentType:something |
|
1917 |
"set the value of the instance variable 'commentType' (automatically generated)" |
|
1918 |
||
1919 |
commentType := something. |
|
1920 |
||
1921 |
"Created: / 17.2.1998 / 14:44:33 / cg" |
|
1922 |
! |
|
1923 |
||
1924 |
string |
|
1925 |
^ commentString |
|
1926 |
||
1927 |
"Created: / 17.2.1998 / 14:49:52 / cg" |
|
0 | 1928 |
! ! |
141 | 1929 |
|
359
5c3718455360
support for nameSpaces (space::name)
Claus Gittinger <cg@exept.de>
parents:
313
diff
changeset
|
1930 |
!Scanner class methodsFor:'documentation'! |
148 | 1931 |
|
264
f10298cba622
oops - corrupted version checked in
Claus Gittinger <cg@exept.de>
parents:
263
diff
changeset
|
1932 |
version |
873 | 1933 |
^ '$Header: /cvs/stx/stx/libcomp/Scanner.st,v 1.97 1999-06-26 13:51:33 cg Exp $' |
148 | 1934 |
! ! |
141 | 1935 |
Scanner initialize! |