author | Claus Gittinger <cg@exept.de> |
Fri, 08 Nov 1996 16:27:05 +0100 | |
changeset 1938 | e1a56370a833 |
parent 1665 | 928e9a308cea |
child 1949 | 5fd7fa45a817 |
permissions | -rw-r--r-- |
1 | 1 |
" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
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All Rights Reserved |
1 | 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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inclusion of the above copyright notice. This software may not |
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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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Object subclass:#Stream |
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ST80 compatibility: generate signal at end of stream when instance variable
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instanceVariableNames:'signalAtEnd' |
846
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network byte order read/write methods added
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classVariableNames:'StreamErrorSignal PositionErrorSignal ReadErrorSignal |
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parents:
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WriteErrorSignal EndOfStreamSignal' |
743 | 17 |
poolDictionaries:'' |
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category:'Streams' |
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! |
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!Stream class methodsFor:'documentation'! |
88 | 22 |
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copyright |
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" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
|
216 | 26 |
All Rights Reserved |
88 | 27 |
|
28 |
This software is furnished under a license and may be used |
|
29 |
only in accordance with the terms of that license and with the |
|
30 |
inclusion of the above copyright notice. This software may not |
|
31 |
be provided or otherwise made available to, or used by, any |
|
32 |
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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An abstract class defining common behavior for all stream-like objects. |
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See concrete subclasses for more detail. |
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The protocol as implemented here is often only provided as a fallBack |
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for very uncommon cases. Much of it is redefined for performance. |
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(In streams which know more about their internal representation ...) |
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46 |
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Subclasses should (at least) implement: |
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#next (if readable) |
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#nextPut: (if writable) |
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#contents |
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#atEnd |
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#isReadable |
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#isWritable |
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1404 | 55 |
Peekable & Positionable streams should (at least) implement: |
56 |
#peek |
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57 |
#position |
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#position: |
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[Class variables:] |
62 |
StreamErrorSignal <Signal> parent of all stream errors |
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1295 | 64 |
PositionErrorSignal <Signal> position attemted on a stream |
65 |
which does not support positioning |
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820
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1295 | 67 |
ReadErrorSignal <Signal> raised on read errors |
820
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1295 | 69 |
WriteErrorSignal <Signal> raised on write errors |
820
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1295 | 71 |
EndOfStreamSignal <Signal> raised at end of stream |
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[author:] |
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Claus Gittinger |
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" |
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! ! |
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!Stream class methodsFor:'initialization'! |
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79 |
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19d568779cf7
moved StreamErrorSignal into Stream;
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80 |
initialize |
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StreamErrorSignal isNil ifTrue:[ |
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StreamErrorSignal := ErrorSignal newSignalMayProceed:false. |
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moved StreamErrorSignal into Stream;
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parents:
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83 |
StreamErrorSignal nameClass:self message:#streamErrorSignal. |
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
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diff
changeset
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84 |
StreamErrorSignal notifierString:'Stream error'. |
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
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85 |
|
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
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PositionErrorSignal := StreamErrorSignal newSignalMayProceed:true. |
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moved StreamErrorSignal into Stream;
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changeset
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PositionErrorSignal nameClass:self message:#positionErrorSignal. |
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
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diff
changeset
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88 |
PositionErrorSignal notifierString:'stream as no concept of a position'. |
820
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moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
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89 |
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6d934f5d6cbc
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changeset
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ReadErrorSignal := StreamErrorSignal newSignalMayProceed:false. |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
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diff
changeset
|
91 |
ReadErrorSignal nameClass:self message:#readErrorSignal. |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
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changeset
|
92 |
ReadErrorSignal notifierString:'read error'. |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
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93 |
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6d934f5d6cbc
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parents:
743
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WriteErrorSignal := StreamErrorSignal newSignalMayProceed:false. |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
743
diff
changeset
|
95 |
WriteErrorSignal nameClass:self message:#writeErrorSignal. |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
743
diff
changeset
|
96 |
WriteErrorSignal notifierString:'write error'. |
970
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
97 |
|
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
98 |
EndOfStreamSignal := StreamErrorSignal newSignalMayProceed:false. |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
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diff
changeset
|
99 |
EndOfStreamSignal nameClass:self message:#endOfStreamSignal. |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
100 |
EndOfStreamSignal notifierString:'end of stream'. |
593
19d568779cf7
moved StreamErrorSignal into Stream;
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
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101 |
] |
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
530
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102 |
! ! |
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
530
diff
changeset
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103 |
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1538
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parents:
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104 |
!Stream class methodsFor:'instance creation'! |
611 | 105 |
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106 |
new |
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1119
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"{ Pragma: +optSpace }" |
956d62a5656c
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changeset
|
108 |
|
611 | 109 |
"report an error - Streams are created using on:-messages" |
110 |
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111 |
^ self error:'Streams cannot be created with new' |
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112 |
! ! |
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113 |
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1538
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parents:
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114 |
!Stream class methodsFor:'Signal constants'! |
593
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
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diff
changeset
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115 |
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970
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
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116 |
endOfStreamSignal |
3b59c9b38dbb
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parents:
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117 |
"return the signal raised if read past end of stream is attemted" |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
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parents:
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118 |
|
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ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
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119 |
^ EndOfStreamSignal |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
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120 |
! |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
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121 |
|
611 | 122 |
positionErrorSignal |
123 |
"return the signal raised if positioning is requested for |
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124 |
a stream which does not support that kind of operation" |
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125 |
||
126 |
^ PositionErrorSignal |
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127 |
! |
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128 |
||
820
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
743
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129 |
readErrorSignal |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
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changeset
|
130 |
"return the signal raised on read errors" |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
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131 |
|
6d934f5d6cbc
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132 |
^ ReadErrorSignal |
6d934f5d6cbc
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parents:
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133 |
! |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
743
diff
changeset
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134 |
|
593
19d568779cf7
moved StreamErrorSignal into Stream;
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
135 |
streamErrorSignal |
19d568779cf7
moved StreamErrorSignal into Stream;
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
136 |
"return the parent of all stream errors; |
19d568779cf7
moved StreamErrorSignal into Stream;
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
137 |
handling this one also handles all other errors. |
19d568779cf7
moved StreamErrorSignal into Stream;
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
138 |
Also, this one may be raised for errors not related to read/write |
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
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diff
changeset
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139 |
operations, such as failed ioctls in externalStream etc." |
19d568779cf7
moved StreamErrorSignal into Stream;
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
140 |
|
19d568779cf7
moved StreamErrorSignal into Stream;
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parents:
530
diff
changeset
|
141 |
^ StreamErrorSignal |
820
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
743
diff
changeset
|
142 |
! |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
743
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changeset
|
143 |
|
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
743
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changeset
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144 |
writeErrorSignal |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
743
diff
changeset
|
145 |
"return the signal raised on write errors" |
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
743
diff
changeset
|
146 |
|
6d934f5d6cbc
moved readErrorSignal / writeErrorSignal up in the hierarchy
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parents:
743
diff
changeset
|
147 |
^ WriteErrorSignal |
1 | 148 |
! ! |
149 |
||
150 |
!Stream methodsFor:'accessing'! |
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151 |
||
152 |
contents |
|
62 | 153 |
"return the entire contents of the stream |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
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parents:
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diff
changeset
|
154 |
- we do not know here how to do it, it must be redefined in subclasses." |
1 | 155 |
|
156 |
^ self subclassResponsibility |
|
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
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parents:
1401
diff
changeset
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157 |
|
82462d153a7d
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parents:
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diff
changeset
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158 |
"Modified: 15.5.1996 / 17:36:29 / cg" |
970
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
159 |
! |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
160 |
|
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
161 |
signalAtEnd |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
162 |
"return the signalAtEnd flag setting. If true, reading past the end |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
163 |
will raise an EndOfStream exception. If false, no exception is |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
164 |
raised and nil is returned from all reading messages. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
165 |
The default is (currently) to NOT raise a signal." |
970
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
166 |
|
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
167 |
^ signalAtEnd |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
168 |
|
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
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parents:
846
diff
changeset
|
169 |
"Created: 5.2.1996 / 18:24:53 / stefan" |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
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parents:
1401
diff
changeset
|
170 |
"Modified: 15.5.1996 / 17:35:55 / cg" |
970
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
171 |
! |
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
172 |
|
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
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parents:
1401
diff
changeset
|
173 |
signalAtEnd:aBoolean |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
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parents:
1401
diff
changeset
|
174 |
"set the signalAtEnd flag setting. If true, reading past the end |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
175 |
will raise an EndOfStream exception. If false, no exception is |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
176 |
raised and nil is returned from all reading messages. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
177 |
The default is (currently) to NOT raise a signal." |
970
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
Stefan Vogel <sv@exept.de>
parents:
846
diff
changeset
|
178 |
|
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
179 |
signalAtEnd := aBoolean. |
970
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
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parents:
846
diff
changeset
|
180 |
|
3b59c9b38dbb
ST80 compatibility: generate signal at end of stream when instance variable
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parents:
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|
181 |
"Created: 5.2.1996 / 18:24:53 / stefan" |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
182 |
"Modified: 15.5.1996 / 17:36:12 / cg" |
1 | 183 |
! ! |
184 |
||
611 | 185 |
!Stream methodsFor:'closing'! |
186 |
||
187 |
close |
|
188 |
"close the stream - nothing done here. |
|
189 |
Added for compatibility with external streams." |
|
190 |
||
191 |
^ self |
|
192 |
! ! |
|
193 |
||
1401 | 194 |
!Stream methodsFor:'emphasis'! |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
195 |
|
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bold |
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"set emphasis to #bold. |
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this allows Streams to be used interchangeable with printStreams" |
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199 |
|
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self emphasis:#bold. |
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201 |
|
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202 |
"Created: 14.5.1996 / 17:37:37 / cg" |
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"Modified: 3.6.1996 / 16:57:17 / cg" |
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204 |
! |
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205 |
|
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206 |
boldItalic |
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207 |
"set emphasis to #boldItalic |
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this allows Streams to be used interchangeable with printStreams" |
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209 |
|
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self emphasis:#(bold italic). |
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211 |
|
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212 |
"Created: 14.5.1996 / 17:37:47 / cg" |
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"Modified: 3.6.1996 / 17:15:22 / cg" |
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214 |
! |
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215 |
|
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216 |
emphasis |
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217 |
"ignored here - allows Streams to be used interchangable with |
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218 |
text streams" |
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219 |
|
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220 |
^ nil |
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221 |
|
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222 |
"Created: 14.5.1996 / 17:39:45 / cg" |
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223 |
! |
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224 |
|
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emphasis:anEmphasis |
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226 |
"ignored here. |
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227 |
this allows Streams to be used interchangeable with printStreams" |
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228 |
|
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229 |
^ self |
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230 |
|
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231 |
"Created: 14.5.1996 / 17:38:07 / cg" |
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232 |
! |
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233 |
|
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234 |
italic |
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"set emphasis to #italic. |
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236 |
this allows Streams to be used interchangeable with printStreams" |
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237 |
|
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self emphasis:#italic. |
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239 |
|
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240 |
"Created: 14.5.1996 / 17:37:55 / cg" |
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241 |
"Modified: 3.6.1996 / 17:15:32 / cg" |
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242 |
! |
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243 |
|
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244 |
normal |
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245 |
"set emphasis to #normal. |
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246 |
this allows Streams to be used interchangeable with printStreams" |
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247 |
|
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248 |
self emphasis:nil |
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249 |
|
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250 |
"Created: 14.5.1996 / 17:37:59 / cg" |
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251 |
"Modified: 3.6.1996 / 17:15:35 / cg" |
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252 |
! |
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253 |
|
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254 |
strikeout |
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255 |
"set emphasis to #strikeout. |
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256 |
this allows Streams to be used interchangeable with printStreams" |
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257 |
|
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258 |
self emphasis:#strikeout. |
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259 |
|
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260 |
"Modified: 3.6.1996 / 16:57:56 / cg" |
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261 |
"Created: 3.6.1996 / 17:15:45 / cg" |
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262 |
! |
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263 |
|
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264 |
underline |
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265 |
"set emphasis to #underline. |
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266 |
this allows Streams to be used interchangeable with printStreams" |
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267 |
|
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268 |
self emphasis:#underline. |
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269 |
|
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270 |
"Created: 3.6.1996 / 17:00:03 / cg" |
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271 |
"Modified: 3.6.1996 / 17:15:38 / cg" |
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272 |
! ! |
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273 |
|
1401 | 274 |
!Stream methodsFor:'enumerating'! |
275 |
||
276 |
do:aBlock |
|
277 |
"evaluate the argument, aBlock for all remaining elements, |
|
278 |
up to the end of the stream" |
|
279 |
||
280 |
[self atEnd] whileFalse:[ |
|
281 |
aBlock value:(self next) |
|
282 |
] |
|
283 |
||
284 |
" |
|
285 |
|s| |
|
286 |
s := ReadStream on:#(1 2 3 4 5 6 7 8 9). |
|
287 |
s next. |
|
288 |
s next. |
|
1422 | 289 |
s do:[:element | Transcript showCR:element] |
1401 | 290 |
" |
291 |
! ! |
|
292 |
||
293 |
!Stream methodsFor:'error handling'! |
|
294 |
||
295 |
pastEnd |
|
296 |
"someone tried to read after the end of the stream. |
|
297 |
if signalAtEnd == true, raise a signal. |
|
298 |
Otherwise return nil." |
|
299 |
||
300 |
signalAtEnd == true ifTrue:[ |
|
301 |
^ EndOfStreamSignal raiseIn:thisContext sender |
|
302 |
]. |
|
303 |
^ nil |
|
304 |
||
305 |
"Created: 5.2.1996 / 21:56:08 / stefan" |
|
306 |
! ! |
|
307 |
||
611 | 308 |
!Stream methodsFor:'misc'! |
309 |
||
310 |
binary |
|
1402
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|
311 |
"switch to binary mode. In binary mode, reading of text streams |
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|
312 |
returns byte-valued integers instead of characters; writing expects |
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|
313 |
byte-valued integers respectively. |
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|
314 |
Ignored here, but added to make internalStreams protocol compatible |
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|
315 |
with externalStreams." |
611 | 316 |
|
1402
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|
317 |
"Modified: 15.5.1996 / 17:38:36 / cg" |
1665
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|
318 |
! |
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|
319 |
|
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|
320 |
text |
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|
321 |
"switch to text mode. |
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|
322 |
Ignored here, but added to make internalStreams protocol compatible |
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|
323 |
with externalStreams." |
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|
324 |
|
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|
325 |
"Modified: 15.5.1996 / 17:38:36 / cg" |
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|
326 |
"Created: 13.9.1996 / 18:33:26 / cg" |
611 | 327 |
! ! |
328 |
||
329 |
!Stream methodsFor:'non homogenous reading'! |
|
330 |
||
1402
82462d153a7d
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diff
changeset
|
331 |
nextAlphaNumericWord |
82462d153a7d
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diff
changeset
|
332 |
"read the next word (i.e. up to non letter-or-digit). |
82462d153a7d
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diff
changeset
|
333 |
Return a string containing those characters. |
82462d153a7d
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diff
changeset
|
334 |
Any leading whitespace is skipped. |
82462d153a7d
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diff
changeset
|
335 |
This method does not advance over any non-alphanumeric characters; |
1403 | 336 |
i.e. it will stick and continue to continue to return nil in this case. |
337 |
Only call for it in a loop, AFTER you have checked for |
|
1402
82462d153a7d
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diff
changeset
|
338 |
the next character to really be alphanumeric (using #peek)" |
82462d153a7d
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|
339 |
|
82462d153a7d
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changeset
|
340 |
|s c| |
82462d153a7d
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changeset
|
341 |
|
82462d153a7d
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|
342 |
[self atEnd not |
82462d153a7d
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diff
changeset
|
343 |
and:[(c := self peek) isSeparator]] whileTrue:[ |
82462d153a7d
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diff
changeset
|
344 |
self next |
82462d153a7d
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diff
changeset
|
345 |
]. |
82462d153a7d
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changeset
|
346 |
|
82462d153a7d
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|
347 |
self atEnd ifTrue:[^ nil]. |
82462d153a7d
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changeset
|
348 |
|
82462d153a7d
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diff
changeset
|
349 |
s := ''. |
82462d153a7d
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diff
changeset
|
350 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
351 |
[self atEnd not |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
352 |
and:[(c := self peek) isLetterOrDigit]] whileTrue:[ |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
353 |
s := s copyWith:c. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
354 |
self next |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
355 |
]. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
356 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
357 |
s size == 0 ifTrue:[^ nil]. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
358 |
^ s. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
359 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
360 |
" |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
361 |
|s| |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
362 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
363 |
s := 'hello world 1234 foo1 foo2' readStream. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
364 |
[s atEnd] whileFalse:[ |
1422 | 365 |
Transcript showCR:(s nextAlphaNumericWord). |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
366 |
]. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
367 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
368 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
369 |
notice: streams end never reached this way (sticking at the '+'-character: |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
370 |
|s| |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
371 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
372 |
s := 'hello world 1234 foo1+foo2' readStream. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
373 |
10 timesRepeat:[ |
1422 | 374 |
Transcript showCR:(s nextAlphaNumericWord). |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
375 |
]. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
376 |
" |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
377 |
|
1403 | 378 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
379 |
! |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
380 |
|
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
381 |
nextBytes:numBytes into:aCollection |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
382 |
"return the next numBytes from the stream. |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
383 |
The receiver must support reading of binary bytes." |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
384 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
385 |
^ self nextBytes:numBytes into:aCollection startingAt:1 |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
386 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
387 |
"Modified: 13.9.1996 / 18:13:01 / cg" |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
388 |
! |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
389 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
390 |
nextBytes:numBytes into:aCollection startingAt:initialIndex |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
391 |
"return the next numBytes from the stream. |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
392 |
The receiver must support reading of binary bytes." |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
393 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
394 |
|dstIndex| |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
395 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
396 |
dstIndex := initialIndex. |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
397 |
1 to:numBytes do:[:index | |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
398 |
aCollection at:dstIndex put:(self nextByte). |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
399 |
dstIndex := dstIndex + 1. |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
400 |
]. |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
401 |
^ numBytes |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
402 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
403 |
"Created: 13.9.1996 / 18:12:47 / cg" |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
404 |
! |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
405 |
|
611 | 406 |
nextLine |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
407 |
"return the characters upTo (but excluding) the next cr (carriage return) |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
408 |
character (i.e. read a single line of text). |
1371 | 409 |
Added for protocol compatibility with externalStreams." |
611 | 410 |
|
411 |
^ self upTo:Character cr. |
|
1371 | 412 |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
413 |
"Modified: 11.7.1996 / 10:03:56 / cg" |
611 | 414 |
! |
415 |
||
416 |
nextLongMSB:msbFlag |
|
417 |
"return a signed long (4 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
418 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
419 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
420 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
421 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
422 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
423 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
424 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
425 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
426 |
network byte order." |
611 | 427 |
|
428 |
|high uval "{ Class: SmallInteger }"| |
|
429 |
||
430 |
msbFlag ifTrue:[ |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
431 |
"most significant first" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
432 |
high := self next. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
433 |
uval := self next bitShift:16. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
434 |
uval := uval bitOr:(self next bitShift:8). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
435 |
uval := uval bitOr:(self next). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
436 |
uval := uval bitOr:(high bitShift:24). |
611 | 437 |
] ifFalse:[ |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
438 |
"least significant first" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
439 |
uval := self next. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
440 |
uval := uval bitOr:(self next bitShift:8). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
441 |
uval := uval bitOr:(self next bitShift:16). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
442 |
uval := uval bitOr:(self next bitShift:24). |
611 | 443 |
]. |
444 |
"change from unsigned 0..FFFFFFFF to signed -80000000..7FFFFFFF" |
|
445 |
||
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
446 |
"/ sorry- for now (2.7), stc cannot compile LargeInteger constants |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
447 |
"/ uval >= 16r80000000 ifTrue:[ |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
448 |
"/ ^ uval - 16r100000000 |
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
449 |
"/ ]. |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
450 |
"/ the following kludges around this |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
451 |
"/ well, new (2.8) can ... |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
452 |
|
611 | 453 |
(uval bitShift:-16) >= 16r8000 ifTrue:[ |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
454 |
^ uval - (16r10000000 bitShift:8) |
611 | 455 |
]. |
456 |
^ uval |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
457 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
458 |
"Modified: 11.7.1996 / 10:06:52 / cg" |
611 | 459 |
! |
460 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
461 |
nextLongNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
462 |
"return a signed long (4 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
463 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
464 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
465 |
^ self nextLongMSB:(Socket networkLongOrderIsMSB) |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
466 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
467 |
"Created: 10.1.1996 / 19:49:28 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
468 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
469 |
|
611 | 470 |
nextNumber:n |
471 |
"Return the next n bytes as a positive Integer; bytes are taken msb-first." |
|
472 |
||
473 |
|s |
|
474 |
val "{ Class: SmallInteger }" |
|
475 |
rep "{ Class: SmallInteger }"| |
|
476 |
||
477 |
"claus: this method is central in binaryStorage - |
|
478 |
therefore it has been tuned a bit (and needs even more tuning)" |
|
479 |
||
480 |
n == 1 ifTrue:[ |
|
481 |
^ self next |
|
482 |
]. |
|
483 |
n == 2 ifTrue:[ |
|
484 |
val := self next. |
|
485 |
val := (val bitShift:8) + self next. |
|
486 |
^ val |
|
487 |
]. |
|
488 |
n == 3 ifTrue:[ |
|
489 |
val := self next. |
|
490 |
val := (val bitShift:8) + self next. |
|
491 |
val := (val bitShift:8) + self next. |
|
492 |
^ val |
|
493 |
]. |
|
494 |
n == 4 ifTrue:[ |
|
495 |
val := self next. |
|
496 |
val <= 16r3F ifTrue:[ |
|
497 |
val := (val bitShift:8) + self next. |
|
498 |
val := (val bitShift:8) + self next. |
|
499 |
val := (val bitShift:8) + self next. |
|
500 |
^ val |
|
501 |
]. |
|
502 |
"sorry, but need a largeInteger" |
|
503 |
s := (val bitShift:8) + self next. |
|
504 |
s := (s bitShift:8) + self next. |
|
505 |
s := (s * 256) + self next. |
|
506 |
^ s |
|
507 |
]. |
|
508 |
||
509 |
" |
|
510 |
arbitrary long |
|
511 |
" |
|
512 |
s := 0. |
|
513 |
rep := n. |
|
514 |
rep timesRepeat:[ |
|
515 |
s := s * 256 + self next |
|
516 |
]. |
|
517 |
^ s truncated |
|
518 |
! |
|
519 |
||
520 |
nextShortMSB:msbFlag |
|
521 |
"return a signed short (2 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
522 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
523 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
524 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
525 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
526 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
527 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
528 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
529 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
530 |
network byte order." |
611 | 531 |
|
532 |
|uval "{ Class: SmallInteger }"| |
|
533 |
||
534 |
msbFlag ifTrue:[ |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
535 |
"most significant first" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
536 |
uval := self next bitShift:8. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
537 |
uval := uval bitOr:(self next). |
611 | 538 |
] ifFalse:[ |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
539 |
"least significant first" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
540 |
uval := self next. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
541 |
uval := uval bitOr:(self next bitShift:8). |
611 | 542 |
]. |
543 |
"change from unsigned 0..FFFF to signed -8000..7FFF" |
|
544 |
uval >= 16r8000 ifTrue:[ |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
545 |
^ uval - 16r10000 |
611 | 546 |
]. |
547 |
^ uval |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
548 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
549 |
"Modified: 11.7.1996 / 10:07:04 / cg" |
611 | 550 |
! |
551 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
552 |
nextShortNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
553 |
"return a signed short (2 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
554 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
555 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
556 |
^ self nextShortMSB:(Socket networkShortOrderIsMSB) |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
557 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
558 |
"Modified: 10.1.1996 / 19:48:50 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
559 |
"Created: 10.1.1996 / 19:49:41 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
560 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
561 |
|
611 | 562 |
nextUnsignedLongMSB:msbFlag |
563 |
"return an unsigned long (4 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
564 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
565 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
566 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
567 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
568 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
569 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
570 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
571 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
572 |
network byte order." |
611 | 573 |
|
574 |
|val| |
|
575 |
||
576 |
msbFlag ifTrue:[ |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
577 |
val := self next. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
578 |
val := (val bitShift:8) bitOr:(self next). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
579 |
val := (val bitShift:8) bitOr:(self next). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
580 |
val := (val * 256) + (self next). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
581 |
^ val |
611 | 582 |
]. |
583 |
val := self next. |
|
584 |
^ (val bitShift:24) |
|
585 |
+ (self next bitShift:16) |
|
586 |
+ (self next bitShift:8) |
|
587 |
+ self next |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
588 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
589 |
"Modified: 11.7.1996 / 10:07:13 / cg" |
611 | 590 |
! |
591 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
592 |
nextUnsignedLongNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
593 |
"return an unsigned long (4 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
594 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
595 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
596 |
^ self nextUnsignedLongMSB:(Socket networkLongOrderIsMSB) |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
597 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
598 |
"Created: 10.1.1996 / 19:49:02 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
599 |
"Modified: 10.1.1996 / 19:49:50 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
600 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
601 |
|
611 | 602 |
nextUnsignedShortMSB:msbFlag |
603 |
"return an unsigned short (2 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
604 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
605 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
606 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
607 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
608 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
609 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
610 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
611 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
612 |
network byte order." |
611 | 613 |
|
614 |
msbFlag ifTrue:[ |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
615 |
^ (self next bitShift:8) bitOr:(self next) |
611 | 616 |
]. |
617 |
^ (self next) bitOr:(self next bitShift:8) |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
618 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
619 |
"Modified: 11.7.1996 / 10:07:20 / cg" |
611 | 620 |
! |
621 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
622 |
nextUnsignedShortNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
623 |
"return an unsigned short (2 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
624 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
625 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
626 |
^ self nextUnsignedShortMSB:(Socket networkShortOrderIsMSB) |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
627 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
628 |
"Created: 10.1.1996 / 19:50:02 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
629 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
630 |
|
611 | 631 |
nextWord |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
632 |
"return the next characters which form an alphanumeric word |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
633 |
(i.e. everything upTo (but excluding) the next non alphanumeric |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
634 |
element)" |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
635 |
|
611 | 636 |
^ self nextAlphaNumericWord |
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
637 |
|
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
638 |
"Modified: 15.5.1996 / 17:39:32 / cg" |
611 | 639 |
! ! |
640 |
||
641 |
!Stream methodsFor:'non homogenous writing'! |
|
642 |
||
643 |
nextLongPut:aNumber |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
644 |
"for ST-80 compatibility: |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
645 |
Write the argument, aNumber as a long (four bytes). |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
646 |
The most significant byte is sent first." |
611 | 647 |
|
648 |
^ self nextPutLong:aNumber MSB:true |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
649 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
650 |
"Modified: 10.1.1996 / 19:38:54 / cg" |
611 | 651 |
! |
652 |
||
653 |
nextNumber:n put:v |
|
654 |
"Append to the receiver the argument, v, which is a positive Integer, |
|
655 |
as the next n bytes. Bytes are written msb first. |
|
656 |
Possibly pad with leading zeros. |
|
657 |
The receiver must support writing of binary bytes." |
|
658 |
||
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
659 |
|vlen "{ Class: SmallInteger }" |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
660 |
i "{ Class: SmallInteger }"| |
611 | 661 |
|
662 |
"claus: this method is central in binaryStorage - |
|
663 |
therefore it has been tuned a bit (and needs even more tuning)" |
|
664 |
||
665 |
v class == SmallInteger ifTrue:[ "- this is a hint to stc" |
|
666 |
n == 1 ifTrue:[ |
|
667 |
(v between:0 and:16rFF) ifTrue:[ |
|
668 |
self nextPut:v. |
|
669 |
^ self |
|
670 |
]. |
|
671 |
]. |
|
672 |
n == 2 ifTrue:[ |
|
673 |
(v between:0 and:16rFFFF) ifTrue:[ |
|
674 |
self nextPut:(v bitShift:-8). |
|
675 |
self nextPut:(v bitAnd:16rFF). |
|
676 |
^ self |
|
677 |
]. |
|
678 |
]. |
|
679 |
n == 3 ifTrue:[ |
|
680 |
(v between:0 and:16rFFFFFF) ifTrue:[ |
|
681 |
self nextPut:((v bitShift:-16) bitAnd:16rFF). |
|
682 |
self nextPut:((v bitShift:-8) bitAnd:16rFF). |
|
683 |
self nextPut:(v bitAnd:16rFF). |
|
684 |
^ self |
|
685 |
]. |
|
686 |
]. |
|
687 |
n == 4 ifTrue:[ |
|
688 |
(v >= 0) ifTrue:[ |
|
689 |
self nextPut:((v bitShift:-24) bitAnd:16rFF). |
|
690 |
self nextPut:((v bitShift:-16) bitAnd:16rFF). |
|
691 |
self nextPut:((v bitShift:-8) bitAnd:16rFF). |
|
692 |
self nextPut:(v bitAnd:16rFF). |
|
693 |
^ self |
|
694 |
]. |
|
695 |
]. |
|
696 |
]. |
|
697 |
||
698 |
" |
|
699 |
arbitrary long |
|
700 |
" |
|
701 |
n < (vlen := v digitLength) ifTrue: [ |
|
702 |
" |
|
703 |
the number is too big to be repesented in n bytes |
|
704 |
" |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
705 |
self error:'number too big' |
611 | 706 |
]. |
707 |
||
708 |
"pad with leading zeros" |
|
709 |
i := n. |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
710 |
[i > vlen] whileTrue:[ |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
711 |
self nextPut:0. |
611 | 712 |
i := i - 1 |
713 |
]. |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
714 |
|
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
715 |
i == 1 ifTrue:[ |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
716 |
^ self nextPut:v |
611 | 717 |
]. |
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
718 |
|
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
719 |
[i > 0] whileTrue:[ |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
720 |
self nextPut:(v digitAt:i). |
611 | 721 |
i := i - 1 |
722 |
] |
|
723 |
! |
|
724 |
||
725 |
nextPutLong:aNumber MSB:msbFlag |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
726 |
"Write the argument, aNumber as a long (four bytes). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
727 |
If msbFlag is true, data is written most-significant byte first; |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
728 |
otherwise least first. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
729 |
Returns the receiver on ok, nil on error. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
730 |
The receiver must support writing of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
731 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
732 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
733 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
734 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
735 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
736 |
network byte order." |
611 | 737 |
|
738 |
msbFlag ifTrue:[ |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
739 |
"high word first" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
740 |
self nextShortPut:(aNumber // 16r10000) MSB:true. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
741 |
^ self nextShortPut:(aNumber \\ 16r10000) MSB:true |
611 | 742 |
]. |
743 |
"low word first" |
|
744 |
self nextShortPut:(aNumber \\ 16r10000) MSB:false. |
|
745 |
^ self nextShortPut:(aNumber // 16r10000) MSB:false. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
746 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
747 |
"Modified: 11.7.1996 / 10:07:58 / cg" |
611 | 748 |
! |
749 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
750 |
nextPutLongNet:aNumber |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
751 |
"Write the argument, aNumber as a long (four bytes) in the network byte order. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
752 |
Returns the receiver on ok, nil on error. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
753 |
The receiver must support writing of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
754 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
755 |
^ self nextPutLong:aNumber MSB:(Socket networkLongOrderIsMSB). |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
756 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
757 |
"Modified: 10.1.1996 / 19:47:10 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
758 |
"Created: 10.1.1996 / 19:50:23 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
759 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
760 |
|
611 | 761 |
nextPutShort:aNumber MSB:msbFlag |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
762 |
"Write the argument, aNumber as a short (two bytes). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
763 |
If msbFlag is true, data is written most-significant byte first; |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
764 |
otherwise least first. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
765 |
Returns the receiver on ok, nil on error. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
766 |
The receiver must support writing of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
767 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
768 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
769 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
770 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
771 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
772 |
network byte order." |
611 | 773 |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
774 |
|iNum "{ Class: SmallInteger }"| |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
775 |
|
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
776 |
iNum := aNumber. |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
777 |
|
611 | 778 |
msbFlag ifTrue:[ |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
779 |
"most significant first" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
780 |
self nextPut:(iNum bitShift:-8). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
781 |
^ self nextPut:(iNum bitAnd:16rFF). |
611 | 782 |
]. |
783 |
"least significant first" |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
784 |
self nextPut:(iNum bitAnd:16rFF). |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
785 |
self nextPut:(iNum bitShift:-8). |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
786 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
787 |
"Modified: 11.7.1996 / 10:08:19 / cg" |
611 | 788 |
! |
789 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
790 |
nextPutShortNet:aNumber |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
791 |
"Write the argument, aNumber as a short (two bytes) in the network byte order. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
792 |
Returns the receiver on ok, nil on error. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
793 |
The receiver must support writing of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
794 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
795 |
^ self nextPutLong:aNumber MSB:(Socket networkShortOrderIsMSB). |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
796 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
797 |
"Created: 10.1.1996 / 19:50:33 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
798 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
799 |
|
611 | 800 |
nextPutWord:aNumber |
801 |
"write the argument, aNumber as a signed short (two bytes); |
|
802 |
write msb-first for compatibility with other smalltalks. |
|
803 |
The receiver must support writing of binary bytes. |
|
804 |
I dont know if it should be named nextPutWord: or nextWordPut:; |
|
805 |
one of them will vanish ..." |
|
806 |
||
807 |
^ self nextPutShort:aNumber MSB:true |
|
808 |
! |
|
809 |
||
810 |
nextShortPut:aNumber MSB:msbFlag |
|
811 |
"for compatibility - this will vanish" |
|
812 |
||
813 |
^ self nextPutShort:aNumber MSB:msbFlag |
|
814 |
! |
|
815 |
||
816 |
nextWordPut:aNumber |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
817 |
"for ST-80 compatibility: |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
818 |
Write the argument, aNumber as a short (two bytes). |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
819 |
The most significant byte is sent first." |
611 | 820 |
|
821 |
^ self nextPutShort:aNumber MSB:true |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
822 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
823 |
"Modified: 10.1.1996 / 19:39:19 / cg" |
611 | 824 |
! ! |
825 |
||
826 |
!Stream methodsFor:'private'! |
|
827 |
||
828 |
contentsSpecies |
|
829 |
"this should return the class of which an instance is |
|
1403 | 830 |
returned by the #contents method. Here, Array is returned, |
831 |
since the abstract Stream-class has no idea of the underlying |
|
832 |
collection class. |
|
833 |
It is redefined in some subclasses - for example, to return String." |
|
611 | 834 |
|
835 |
^ Array |
|
1403 | 836 |
|
837 |
"Modified: 15.5.1996 / 17:53:31 / cg" |
|
611 | 838 |
! ! |
839 |
||
840 |
!Stream methodsFor:'queries'! |
|
841 |
||
842 |
isBinary |
|
1403 | 843 |
"return true, if in binary mode. Always returns false here, |
844 |
to make internalStreams protocol compatible with externalStreams." |
|
611 | 845 |
|
846 |
^ false |
|
1403 | 847 |
|
848 |
"Modified: 15.5.1996 / 17:53:51 / cg" |
|
611 | 849 |
! |
850 |
||
851 |
isPositionable |
|
1403 | 852 |
"return true, if the stream supports positioning (some do not). |
853 |
Since this is an abstract class, false is returned here - just to make certain." |
|
611 | 854 |
|
855 |
^ false |
|
1403 | 856 |
|
857 |
"Modified: 15.5.1996 / 17:54:16 / cg" |
|
611 | 858 |
! |
859 |
||
1447 | 860 |
isPrinterStream |
861 |
"return true, if this is a printerStream. |
|
862 |
Since this is an abstract class, false is returned here." |
|
863 |
||
864 |
^ false |
|
865 |
||
866 |
"Modified: 15.5.1996 / 17:54:16 / cg" |
|
867 |
"Created: 3.6.1996 / 12:05:35 / cg" |
|
868 |
! |
|
869 |
||
611 | 870 |
isReadable |
871 |
"return true, if reading is supported by the recevier. |
|
1403 | 872 |
This has to be redefined in concrete subclasses." |
611 | 873 |
|
874 |
^ self subclassResponsibility |
|
1403 | 875 |
|
876 |
"Modified: 15.5.1996 / 17:54:31 / cg" |
|
611 | 877 |
! |
878 |
||
879 |
isStream |
|
1403 | 880 |
"return true, if the receiver is some kind of Stream. Always return true here." |
611 | 881 |
|
882 |
^ true |
|
1403 | 883 |
|
884 |
"Modified: 15.5.1996 / 17:54:48 / cg" |
|
611 | 885 |
! |
886 |
||
887 |
isWritable |
|
888 |
"return true, if writing is supported by the recevier. |
|
1403 | 889 |
This has to be redefined in concrete subclasses." |
611 | 890 |
|
891 |
^ self subclassResponsibility |
|
1403 | 892 |
|
893 |
"Modified: 15.5.1996 / 17:54:54 / cg" |
|
611 | 894 |
! |
895 |
||
896 |
lineLength |
|
1403 | 897 |
"return the lineLength which `looks good' when pretty printed |
898 |
text is sent to this stream. |
|
899 |
This has NO meaning whatsoever to regular streams; |
|
900 |
however, it may be used as a layout hint for prettyprinting functions |
|
901 |
- for compatibility with TextCollectors, which returns its views actual |
|
902 |
line length, and allows the prettyprinter to wrap at that position." |
|
611 | 903 |
|
904 |
^ 80 |
|
1403 | 905 |
|
906 |
"Modified: 15.5.1996 / 17:57:01 / cg" |
|
611 | 907 |
! ! |
908 |
||
62 | 909 |
!Stream methodsFor:'reading'! |
1 | 910 |
|
911 |
next |
|
912 |
"return the next element of the stream |
|
913 |
- we do not know here how to do it, it must be redefined in subclass" |
|
914 |
||
915 |
^ self subclassResponsibility |
|
916 |
! |
|
917 |
||
918 |
next:count |
|
1403 | 919 |
"return the next count elements of the stream as aCollection, |
920 |
which depends on the streams type - (see #contentsSpecies)." |
|
1 | 921 |
|
329 | 922 |
|answerStream |
285 | 923 |
cnt "{ Class: SmallInteger }" | |
1 | 924 |
|
329 | 925 |
answerStream := WriteStream on:(self contentsSpecies new). |
285 | 926 |
cnt := count. |
927 |
1 to:cnt do:[:index | |
|
1403 | 928 |
answerStream nextPut:(self next) |
1 | 929 |
]. |
329 | 930 |
^ answerStream contents |
1 | 931 |
|
275 | 932 |
" |
933 |
(ReadStream on:#(1 2 3 4 5)) next:3 |
|
934 |
(ReadStream on:'hello') next:3 |
|
935 |
" |
|
1403 | 936 |
|
937 |
"Modified: 15.5.1996 / 17:57:58 / cg" |
|
1 | 938 |
! |
939 |
||
285 | 940 |
nextAvailable:count |
1403 | 941 |
"return the next count elements of the stream as aCollection. |
285 | 942 |
If the stream reaches the end before count elements have been read, |
1403 | 943 |
return what is available. (i.e. a shorter collection). |
944 |
The type of collection is speciefied in #contentsSpecies." |
|
285 | 945 |
|
345 | 946 |
|answerStream |
285 | 947 |
cnt "{ Class: SmallInteger }"| |
948 |
||
329 | 949 |
answerStream := WriteStream on:(self contentsSpecies new). |
285 | 950 |
cnt := count. |
951 |
1 to:cnt do:[:index | |
|
1403 | 952 |
self atEnd ifTrue:[ |
953 |
^ answerStream contents |
|
954 |
]. |
|
955 |
answerStream nextPut:(self next) |
|
285 | 956 |
]. |
329 | 957 |
^ answerStream contents |
285 | 958 |
|
959 |
" |
|
960 |
(ReadStream on:#(1 2 3 4 5)) nextAvailable:3 |
|
961 |
(ReadStream on:#(1 2 3 4 5)) nextAvailable:10 |
|
962 |
(ReadStream on:'hello') nextAvailable:3 |
|
963 |
(ReadStream on:'hello') nextAvailable:10 |
|
964 |
" |
|
1403 | 965 |
|
966 |
"Modified: 15.5.1996 / 17:58:42 / cg" |
|
285 | 967 |
! |
968 |
||
1 | 969 |
nextMatchFor:anObject |
62 | 970 |
"read an element from the receiver, return true if it was equal to |
1403 | 971 |
the argument, anObject; false otherwise." |
62 | 972 |
|
973 |
^ (self next = anObject) |
|
974 |
||
975 |
" |
|
976 |
|s| |
|
977 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
978 |
s nextMatchFor:2 |
|
979 |
" |
|
980 |
" |
|
981 |
|s| |
|
982 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
983 |
s nextMatchFor:2. |
|
984 |
s nextMatchFor:2 |
|
985 |
" |
|
1403 | 986 |
|
987 |
"Modified: 15.5.1996 / 17:58:57 / cg" |
|
62 | 988 |
! |
989 |
||
990 |
skip:count |
|
991 |
"skip count objects, return the receiver" |
|
992 |
||
345 | 993 |
|n "{ Class: SmallInteger }"| |
994 |
||
995 |
n := count. |
|
996 |
||
62 | 997 |
"dont know how to unread ..." |
345 | 998 |
n < 0 ifTrue:[ |
216 | 999 |
^ self error:'stream is not positionable' |
62 | 1000 |
]. |
345 | 1001 |
n timesRepeat:self next |
62 | 1002 |
|
1003 |
" |
|
1004 |
|s| |
|
1005 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1006 |
s skip:4. |
|
1007 |
s next |
|
1008 |
" |
|
1009 |
! |
|
1010 |
||
1011 |
skipFor:anObject |
|
1403 | 1012 |
"skip all objects up-to and including anObject; |
1013 |
return the element after anObject." |
|
62 | 1014 |
|
1015 |
(self skipThrough:anObject) notNil ifTrue:[ |
|
1403 | 1016 |
^ self next |
62 | 1017 |
]. |
1018 |
^ nil |
|
1019 |
||
1020 |
" |
|
1021 |
|s| |
|
1022 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1023 |
s skipFor:4. |
|
1024 |
" |
|
1403 | 1025 |
|
1026 |
"Modified: 15.5.1996 / 17:59:23 / cg" |
|
62 | 1027 |
! |
1028 |
||
1029 |
skipThrough:anObject |
|
77 | 1030 |
"skip all objects up-to and including anObject. Return the receiver if |
671 | 1031 |
skip was successful, otherwise (i.e. if not found) return nil. |
62 | 1032 |
The next read operation will return the element after anObject." |
1 | 1033 |
|
1034 |
|nextElement| |
|
1035 |
||
1036 |
[self atEnd] whileFalse:[ |
|
216 | 1037 |
nextElement := self next. |
1038 |
(nextElement = anObject) ifTrue: [ ^ self ] |
|
1 | 1039 |
]. |
1040 |
^ nil |
|
2 | 1041 |
|
62 | 1042 |
" |
1043 |
|s| |
|
1044 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1045 |
s skipThrough:4. |
|
1046 |
s next |
|
1047 |
" |
|
77 | 1048 |
! |
1049 |
||
611 | 1050 |
through:anObject |
1051 |
"read a collection of all objects up-to anObject and return these |
|
1052 |
elements, including anObject. |
|
1053 |
The next read operation will return the element after anObject. |
|
1409 | 1054 |
If anObject is not encountered, all elements up to the end are read |
1055 |
and returned. |
|
611 | 1056 |
Compare this with #upTo: which also reads up to some object |
1057 |
and also positions behind it, but does not include it in the returned |
|
1058 |
value." |
|
1059 |
||
1060 |
|answerStream element| |
|
1061 |
||
1062 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
1063 |
[self atEnd] whileFalse:[ |
|
1409 | 1064 |
element := self next. |
1065 |
answerStream nextPut:element. |
|
1066 |
(element = anObject) ifTrue: [ |
|
1067 |
^ answerStream contents |
|
1068 |
] |
|
611 | 1069 |
]. |
1070 |
^ answerStream contents |
|
1071 |
||
1072 |
" |
|
1073 |
|s| |
|
1074 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1422 | 1075 |
Transcript showCR:(s through:4). |
1076 |
Transcript showCR:s next |
|
1409 | 1077 |
|
1078 |
|s| |
|
1079 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1422 | 1080 |
Transcript showCR:(s through:9). |
1081 |
Transcript showCR:s next |
|
1409 | 1082 |
|
611 | 1083 |
|s| |
1084 |
s := ReadStream on:'hello world'. |
|
1422 | 1085 |
Transcript showCR:(s through:Character space). |
1086 |
Transcript showCR:(s upToEnd) |
|
611 | 1087 |
" |
1409 | 1088 |
|
1089 |
"Modified: 17.5.1996 / 08:51:40 / cg" |
|
611 | 1090 |
! |
1091 |
||
1548 | 1092 |
throughAll:aCollection |
1093 |
"read & return a collection of all objects up-to and including |
|
1094 |
a subcollection given by aCollection. |
|
1095 |
(i.e. read until a ``substring'' is encountered.) |
|
1096 |
The next read operation will return the element after aCollection. |
|
1097 |
If aCollection is not encountered, all elements up to the end are read |
|
1098 |
and returned." |
|
1099 |
||
1100 |
|answerStream element last rslt| |
|
1101 |
||
1102 |
last := aCollection last. |
|
1103 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
1104 |
[self atEnd] whileFalse:[ |
|
1105 |
element := self next. |
|
1106 |
answerStream nextPut:element. |
|
1107 |
element == last ifTrue:[ |
|
1108 |
((rslt := answerStream contents) endsWith:aCollection) ifTrue:[ |
|
1109 |
^ rslt |
|
1110 |
] |
|
1111 |
]. |
|
1112 |
]. |
|
1113 |
^ answerStream contents |
|
1114 |
||
1115 |
" |
|
1116 |
|s| |
|
1117 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1118 |
Transcript showCR:(s throughAll:#(4 4 4)). |
|
1119 |
Transcript showCR:s next |
|
1120 |
||
1121 |
|s| |
|
1122 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1123 |
Transcript showCR:(s throughAll:#(4 5 6)). |
|
1124 |
Transcript showCR:s next |
|
1125 |
||
1126 |
|s| |
|
1127 |
s := ReadStream on:'hello world, this is some text'. |
|
1128 |
Transcript showCR:(s throughAll:'world'). |
|
1129 |
Transcript showCR:(s throughAll:'some'). |
|
1130 |
Transcript showCR:s upToEnd. |
|
1131 |
" |
|
1132 |
||
1133 |
"Modified: 15.7.1996 / 09:08:07 / cg" |
|
1134 |
! |
|
1135 |
||
427 | 1136 |
upTo:anObject |
1137 |
"read a collection of all objects up-to anObject and return these |
|
1138 |
elements, but excluding anObject. |
|
1139 |
The next read operation will return the element after anObject. |
|
1409 | 1140 |
If anObject is not encountered, all elements up to the end are read |
1141 |
and returned. |
|
427 | 1142 |
Compare this with #through: which also reads up to some object |
1143 |
and also positions behind it, but DOES include it in the returned |
|
1144 |
value." |
|
1145 |
||
1146 |
|answerStream element| |
|
1147 |
||
1148 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
1149 |
[self atEnd] whileFalse:[ |
|
1409 | 1150 |
element := self next. |
1151 |
(element = anObject) ifTrue: [ |
|
1152 |
^ answerStream contents |
|
1153 |
]. |
|
1154 |
answerStream nextPut:element. |
|
427 | 1155 |
]. |
1156 |
^ answerStream contents |
|
1157 |
||
1158 |
" |
|
1159 |
|s| |
|
1160 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1422 | 1161 |
Transcript showCR:(s upTo:4). |
1162 |
Transcript showCR:s next |
|
427 | 1163 |
|
1164 |
|s| |
|
1409 | 1165 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
1422 | 1166 |
Transcript showCR:(s upTo:9). |
1167 |
Transcript showCR:s next |
|
1409 | 1168 |
|
1169 |
|s| |
|
427 | 1170 |
s := ReadStream on:'hello world'. |
1422 | 1171 |
Transcript showCR:(s upTo:Character space). |
1172 |
Transcript showCR:(s upToEnd) |
|
427 | 1173 |
|
1174 |
(ReadStream on:'12345678905') upTo:$5; upTo:$5 |
|
1175 |
||
1176 |
(ReadStream on:'123456') upTo:$7 |
|
1177 |
||
1178 |
(ReadStream on:#(1 2 3 4 5 6)) upTo:4 |
|
1179 |
||
1180 |
(ReadStream on:'line 1 |
|
1409 | 1181 |
line 2') upTo:Character cr |
427 | 1182 |
|
1183 |
'Makefile' asFilename readStream upTo:Character cr;upTo:Character cr |
|
1184 |
" |
|
1409 | 1185 |
|
1186 |
"Modified: 17.5.1996 / 08:51:56 / cg" |
|
427 | 1187 |
! |
1188 |
||
77 | 1189 |
upToEnd |
1190 |
"return a collection of the elements up-to the end. |
|
1403 | 1191 |
Return an empty collection, if the stream-end is already at the end." |
77 | 1192 |
|
1193 |
|answerStream| |
|
1194 |
||
1195 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
1196 |
[self atEnd] whileFalse:[ |
|
1403 | 1197 |
answerStream nextPut:(self next) |
77 | 1198 |
]. |
1199 |
^ answerStream contents |
|
1200 |
||
275 | 1201 |
" |
1202 |
(ReadStream on:'1234567890') upToEnd |
|
1203 |
('123456' readStream) next; next; upToEnd |
|
427 | 1204 |
('1 23456' readStream) upTo:Character space; upToEnd |
1403 | 1205 |
('12' readStream) next; next; upToEnd |
275 | 1206 |
" |
1403 | 1207 |
|
1208 |
"Modified: 15.5.1996 / 18:00:39 / cg" |
|
611 | 1209 |
! ! |
77 | 1210 |
|
611 | 1211 |
!Stream methodsFor:'testing'! |
77 | 1212 |
|
611 | 1213 |
atEnd |
1214 |
"return true if the end of the stream has been reached; |
|
1215 |
- we do not know here how to do it, it must be redefined in subclass" |
|
77 | 1216 |
|
611 | 1217 |
^ self subclassResponsibility |
1 | 1218 |
! ! |
1219 |
||
62 | 1220 |
!Stream methodsFor:'writing'! |
1 | 1221 |
|
339 | 1222 |
commit |
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
1223 |
"alias for flush -- ST80 compatibility" |
339 | 1224 |
|
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
1225 |
^ self flush |
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
1226 |
|
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
1227 |
"Modified: 7.5.1996 / 23:55:39 / stefan" |
339 | 1228 |
! |
1229 |
||
611 | 1230 |
cr |
1403 | 1231 |
"append a carriage-return to the stream. |
1232 |
This is only allowed, if the receiver supports writing." |
|
611 | 1233 |
|
1234 |
self nextPut:(Character cr) |
|
1403 | 1235 |
|
1236 |
"Modified: 15.5.1996 / 18:01:21 / cg" |
|
611 | 1237 |
! |
1238 |
||
1239 |
crTab |
|
1240 |
"append a carriage-return followed by a tab to the stream. |
|
1403 | 1241 |
Same as crtab for ST/X backward compatibility. |
1242 |
This is only allowed, if the receiver supports writing." |
|
611 | 1243 |
|
1244 |
self obsoleteMethodWarning:'use crTab'. |
|
1245 |
self crtab |
|
1403 | 1246 |
|
1247 |
"Modified: 15.5.1996 / 18:01:28 / cg" |
|
611 | 1248 |
! |
1249 |
||
1250 |
crtab |
|
1403 | 1251 |
"append a carriage-return followed by a tab to the stream. |
1252 |
This is only allowed, if the receiver supports writing." |
|
1 | 1253 |
|
611 | 1254 |
self crtab:1 |
1403 | 1255 |
|
1256 |
"Modified: 15.5.1996 / 18:01:35 / cg" |
|
611 | 1257 |
! |
1258 |
||
1259 |
crtab:n |
|
1403 | 1260 |
"append a carriage-return followed by n tabs to the stream. |
1261 |
This is only allowed, if the receiver supports writing." |
|
611 | 1262 |
|
1263 |
self nextPut:(Character cr). |
|
1264 |
self next:n put:(Character tab) |
|
1403 | 1265 |
|
1266 |
"Modified: 15.5.1996 / 18:01:39 / cg" |
|
611 | 1267 |
! |
1268 |
||
1269 |
endEntry |
|
1270 |
"ignored here - for compatibility with Transcript" |
|
1271 |
||
1272 |
^ self |
|
1273 |
! |
|
1274 |
||
1275 |
ff |
|
1403 | 1276 |
"append a form-feed (new-pagee) to the receiver-stream. |
1277 |
This is only allowed, if the receiver supports writing." |
|
611 | 1278 |
|
1279 |
self nextPut:(Character ff) |
|
1403 | 1280 |
|
1281 |
"Modified: 15.5.1996 / 18:01:47 / cg" |
|
1 | 1282 |
! |
1283 |
||
701 | 1284 |
flush |
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
1285 |
"write out all unbuffered data - ignored here, but added |
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
1286 |
to make internalStreams protocol compatible with externalStreams" |
701 | 1287 |
|
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
1288 |
"Modified: 7.5.1996 / 23:54:53 / stefan" |
701 | 1289 |
! |
1290 |
||
1 | 1291 |
next:count put:anObject |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1292 |
"put the argument, anObject count times onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1293 |
This is only allowed, if the receiver supports writing." |
1 | 1294 |
|
345 | 1295 |
|n "{ Class: SmallInteger }"| |
1296 |
||
1297 |
n := count. |
|
1298 |
n timesRepeat:[self nextPut:anObject]. |
|
1 | 1299 |
^ anObject |
62 | 1300 |
|
1301 |
" |
|
1302 |
|s| |
|
1303 |
||
1304 |
s := WriteStream on:#(). |
|
1305 |
s nextPut:1. |
|
1306 |
s next:5 put:2. |
|
1307 |
s nextPut:3. |
|
1308 |
s contents |
|
1309 |
" |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1310 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1311 |
"Modified: 11.7.1996 / 10:00:13 / cg" |
1 | 1312 |
! |
1313 |
||
611 | 1314 |
nextPut:anObject |
1315 |
"put the argument, anObject onto the receiver |
|
1316 |
- we do not know here how to do it, it must be redefined in subclass" |
|
1317 |
||
1318 |
^ self subclassResponsibility |
|
1319 |
! |
|
1320 |
||
1 | 1321 |
nextPutAll:aCollection |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1322 |
"put all elements of the argument, aCollection onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1323 |
This is only allowed, if the receiver supports writing." |
1 | 1324 |
|
1325 |
aCollection do:[:element | |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1326 |
self nextPut:element |
1 | 1327 |
]. |
1328 |
^ aCollection |
|
62 | 1329 |
|
1330 |
" |
|
1331 |
|s| |
|
1332 |
||
1333 |
s := WriteStream on:#(). |
|
1334 |
s nextPutAll:(1 to:5). |
|
1335 |
s nextPutAll:#('one' 'two' 'three'). |
|
1336 |
s contents |
|
1337 |
" |
|
1338 |
" |
|
1339 |
|s| |
|
1340 |
||
1341 |
s := WriteStream on:(String new). |
|
1342 |
s nextPutAll:($a to:$f). |
|
1343 |
s nextPutAll:'one '; |
|
1344 |
nextPutAll:'two '; |
|
1345 |
nextPutAll:'three'. |
|
1346 |
s contents |
|
1347 |
" |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1348 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1349 |
"Modified: 11.7.1996 / 10:00:21 / cg" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1350 |
! |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1351 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1352 |
nextPutAll:aCollection startingAt:first |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1353 |
"append the elements starting with index to the end |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1354 |
of the argument, aCollection onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1355 |
This is only allowed, if the receiver supports writing." |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1356 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1357 |
self nextPutAll:aCollection startingAt:first to:(aCollection size). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1358 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1359 |
" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1360 |
|s| |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1361 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1362 |
s := WriteStream on:#(). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1363 |
s nextPutAll:#('one' 'two' 'three' 'four' 'five') startingAt:2. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1364 |
s contents |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1365 |
" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1366 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1367 |
"Modified: 11.7.1996 / 10:00:28 / cg" |
1 | 1368 |
! |
1369 |
||
1370 |
nextPutAll:aCollection startingAt:first to:last |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1371 |
"append the elements with index from first to last |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1372 |
of the argument, aCollection onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1373 |
This is only allowed, if the receiver supports writing." |
1 | 1374 |
|
1375 |
aCollection from:first to:last do:[:element | |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1376 |
self nextPut:element |
1 | 1377 |
]. |
1378 |
^ aCollection |
|
62 | 1379 |
|
1380 |
" |
|
1381 |
|s| |
|
1382 |
||
1383 |
s := WriteStream on:#(). |
|
1384 |
s nextPutAll:#('one' 'two' 'three' 'four' 'five') startingAt:2 to:4. |
|
1385 |
s contents |
|
1386 |
" |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1387 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1388 |
"Modified: 11.7.1996 / 10:00:32 / cg" |
1 | 1389 |
! |
1390 |
||
743 | 1391 |
nextPutLine:aCollection |
1392 |
"put all elements of the argument, aCollection onto the receiver, |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1393 |
and append a cr. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1394 |
This is only useful with character streams in textMode, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1395 |
and anoly allowed, if the receiver supports writing." |
743 | 1396 |
|
1397 |
self nextPutAll:aCollection. |
|
1398 |
self cr. |
|
1399 |
||
1400 |
"Created: 13.12.1995 / 10:49:17 / cg" |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1401 |
"Modified: 11.7.1996 / 10:00:53 / cg" |
743 | 1402 |
! |
1403 |
||
611 | 1404 |
print:anObject |
1405 |
"append a printed representation of anObject to the receiver. |
|
1403 | 1406 |
Same as 'anObject printOn:self'; Added for ST-80 compatibility." |
2 | 1407 |
|
611 | 1408 |
anObject printOn:self |
1403 | 1409 |
|
1410 |
" |
|
1411 |
|s| |
|
1412 |
||
1413 |
s := WriteStream on:''. |
|
1414 |
s nextPutAll:'one '; |
|
1415 |
print:1; |
|
1416 |
nextPutAll:' two '; |
|
1417 |
print:2. |
|
1418 |
||
1419 |
s contents |
|
1420 |
" |
|
1421 |
||
1422 |
"Modified: 15.5.1996 / 18:06:06 / cg" |
|
2 | 1423 |
! |
1424 |
||
1403 | 1425 |
show:something |
1426 |
"append a printed representation of the argument to the stream. |
|
1427 |
This makes streams somewhat compatible to TextCollectors and |
|
1428 |
allows you to say: |
|
1429 |
Smalltalk at:#Transcript put:Stdout |
|
1422 | 1430 |
or to use #show:/#showCR: with internal or external streams." |
1 | 1431 |
|
1403 | 1432 |
^ self nextPutAll:something printString |
1433 |
||
1434 |
"Modified: 15.5.1996 / 18:04:48 / cg" |
|
1 | 1435 |
! |
1436 |
||
1414 | 1437 |
showCR:aString |
1403 | 1438 |
"append a printed representation of the argument to the stream |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1439 |
and append a newline character. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1440 |
This makes streams somewhat compatible to TextCollectors and |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1441 |
allows you to say: |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1442 |
Smalltalk at:#Transcript put:Stdout |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1443 |
or to use #show:/#showCR: with internal or external streams." |
1 | 1444 |
|
1445 |
self show:aString. |
|
1446 |
self cr |
|
1403 | 1447 |
|
1414 | 1448 |
"Created: 18.5.1996 / 15:34:17 / cg" |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1449 |
"Modified: 11.7.1996 / 10:01:27 / cg" |
1414 | 1450 |
! |
1451 |
||
1452 |
showCr:aString |
|
1453 |
"append a printed representation of the argument to the stream |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1454 |
and append a newline character. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1455 |
This is obsolete ST/X backward compatibility; use #showCR:" |
1414 | 1456 |
|
1457 |
self obsoleteMethodWarning:'use #showCR:'. |
|
1458 |
self showCR:aString. |
|
1459 |
||
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1460 |
"Modified: 11.7.1996 / 10:01:50 / cg" |
62 | 1461 |
! |
1462 |
||
1463 |
space |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1464 |
"append a space character to the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1465 |
This is only allowed, if the receiver supports writing." |
62 | 1466 |
|
1467 |
self nextPut:(Character space) |
|
1403 | 1468 |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1469 |
"Modified: 11.7.1996 / 10:02:06 / cg" |
62 | 1470 |
! |
1471 |
||
1472 |
spaces:count |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1473 |
"append count space-characters to the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1474 |
This is only allowed, if the receiver supports writing." |
62 | 1475 |
|
1476 |
self next:count put:(Character space) |
|
1403 | 1477 |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1478 |
"Modified: 11.7.1996 / 10:02:10 / cg" |
62 | 1479 |
! |
1480 |
||
611 | 1481 |
store:anObject |
1482 |
"append a printed representation of anObject to the receiver, |
|
1403 | 1483 |
from which the receiver can be reconstructed (i.e. its storeString). |
1484 |
Same as 'anObject storeOn:self'; Added for ST-80 compatibility." |
|
77 | 1485 |
|
611 | 1486 |
anObject storeOn:self |
1403 | 1487 |
|
1488 |
"Modified: 15.5.1996 / 18:05:55 / cg" |
|
77 | 1489 |
! |
1490 |
||
611 | 1491 |
tab |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1492 |
"append a tab-character to the stream. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1493 |
This is only allowed, if the receiver supports writing." |
77 | 1494 |
|
611 | 1495 |
self nextPut:(Character tab) |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1496 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1497 |
"Modified: 11.7.1996 / 10:02:20 / cg" |
77 | 1498 |
! ! |
1499 |
||
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1500 |
!Stream class methodsFor:'documentation'! |
701 | 1501 |
|
1502 |
version |
|
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
1503 |
^ '$Header: /cvs/stx/stx/libbasic/Stream.st,v 1.51 1996-09-13 16:49:24 cg Exp $' |
701 | 1504 |
! ! |
611 | 1505 |
Stream initialize! |