PPEndOfFileParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Fri, 24 Jul 2015 15:37:23 +0100
changeset 503 ff58cd9f1f3c
parent 427 a7f5e6de19d2
permissions -rw-r--r--
Merge
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
427
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     1
"{ Package: 'stx:goodies/petitparser' }"
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     2
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     3
"{ NameSpace: Smalltalk }"
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     4
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     5
PPParser subclass:#PPEndOfFileParser
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     6
	instanceVariableNames:''
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     7
	classVariableNames:''
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     8
	poolDictionaries:''
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     9
	category:'PetitParser-Parsers'
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    10
!
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    11
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    12
!PPEndOfFileParser methodsFor:'as yet unclassified'!
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    13
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    14
acceptsEpsilon
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    15
	^ true
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    16
!
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    17
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    18
exampleOn: aStream 
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    19
	aStream nextPutAll: #'end-of-input'
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    20
!
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    21
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    22
isNullable 
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    23
	^ true
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    24
!
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    25
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    26
nonEmpty
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    27
	"I know I am empty, but it does not count in my case, I represent virtual non-existent character"
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    28
	^ self
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    29
!
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    30
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    31
parseOn: aPPContext
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    32
	(aPPContext atEnd) ifFalse:
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    33
	[
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    34
		^ PPFailure message: 'end of input expected' context: aPPContext.
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    35
	].
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    36
	^ #'end-of-input'
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    37
! !
a7f5e6de19d2 Merged JK's version from Monticello
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    38