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'From Squeak 3.2 of 11 July 2002 [latest update: #4917] on 17 August 2002 at 6:10:11 pm'!
"Change Set: RePlugin3-Fixes
Date: 17 August 2002
Author: tim@sumeru.stanford.edu
Some small fixes to RePlugin3 to allow compiling on Acorn"!
!RePlugin methodsFor: 're primitives' stamp: 'tpr 8/17/2002 18:00'!
primPCREExec
"<rcvr primPCREExec: searchObject>, where rcvr is an object with instance variables:
'patternStr compileFlags pcrePtr extraPtr errorStr errorOffset matchFlags'
Apply the regular expression (stored in <pcrePtr> and <extratr>, generated from calls to primPCRECompile), to smalltalk String searchObject using <matchOptions>. If there is no match, answer nil. Otherwise answer a ByteArray of offsets representing the results of the match."
| searchObject searchBuffer length result matchSpacePtr matchSpaceSize |
self export: true.
self var:#searchBuffer declareC: 'char *searchBuffer'.
self var:#matchSpacePtr declareC: 'int *matchSpacePtr'.
self var:#result declareC: 'int result'.
"Load Parameters"
searchObject _ interpreterProxy stackObjectValue: 0.
searchBuffer _ interpreterProxy arrayValueOf: searchObject.
length _ interpreterProxy byteSizeOf: searchObject.
self loadRcvrFromStackAt: 1.
"Load Instance Variables"
pcrePtr _ self rcvrPCREBufferPtr.
extraPtr _ self rcvrExtraPtr.
matchFlags _ self rcvrMatchFlags.
matchSpacePtr _ self rcvrMatchSpacePtr.
matchSpaceSize _ self rcvrMatchSpaceSize.
interpreterProxy failed ifTrue:[^ nil].
result _ self
cCode: 'pcre_exec((pcre *)pcrePtr, (pcre_extra *)extraPtr,
searchBuffer, length, 0, matchFlags, matchSpacePtr, matchSpaceSize)'.
interpreterProxy pop: 2; pushInteger: result.
"empty call so compiler doesn't bug me about variables not used"
self touch: searchBuffer; touch: matchSpacePtr; touch: matchSpaceSize; touch: length
! !
!RePlugin methodsFor: 're primitives' stamp: 'tpr 8/17/2002 18:00'!
primPCREExecfromto
"<rcvr primPCREExec: searchObject> from: fromInteger to: toInteger>, where rcvr is an object with instance variables:
'patternStr compileFlags pcrePtr extraPtr errorStr errorOffset matchFlags'
Apply the regular expression (stored in <pcrePtr> and <extratr>, generated from calls to primPCRECompile), to smalltalk String searchObject using <matchOptions>, beginning at offset <fromInteger> and continuing until offset <toInteger>. If there is no match, answer nil. Otherwise answer a ByteArray of offsets representing the results of the match."
| searchObject searchBuffer length result matchSpacePtr matchSpaceSize fromInteger toInteger |
self export: true.
self var:#searchBuffer declareC: 'char *searchBuffer'.
self var:#fromInteger declareC: 'int fromInteger'.
self var:#toInteger declareC: 'int toInteger'.
self var:#matchSpacePtr declareC: 'int *matchSpacePtr'.
self var:#result declareC: 'int result'.
"Load Parameters"
toInteger _ interpreterProxy stackIntegerValue: 0.
fromInteger _ interpreterProxy stackIntegerValue: 1.
searchObject _ interpreterProxy stackObjectValue: 2.
searchBuffer _ interpreterProxy arrayValueOf: searchObject.
length _ interpreterProxy byteSizeOf: searchObject.
self loadRcvrFromStackAt: 3.
"Validate parameters"
interpreterProxy success: (1 <= fromInteger).
interpreterProxy success: (toInteger<=length).
fromInteger _ fromInteger - 1. "Smalltalk offsets are 1-based"
interpreterProxy success: (fromInteger<=toInteger).
"adjust length, searchBuffer"
length _ toInteger - fromInteger.
searchBuffer _ searchBuffer + fromInteger.
"Load Instance Variables"
pcrePtr _ self rcvrPCREBufferPtr.
extraPtr _ self rcvrExtraPtr.
matchFlags _ self rcvrMatchFlags.
matchSpacePtr _ self rcvrMatchSpacePtr.
matchSpaceSize _ self rcvrMatchSpaceSize.
interpreterProxy failed ifTrue:[^ nil].
result _ self
cCode: 'pcre_exec((pcre *)pcrePtr, (pcre_extra *)extraPtr,
searchBuffer, length, 0, matchFlags, matchSpacePtr, matchSpaceSize)'.
interpreterProxy pop: 2; pushInteger: result.
"empty call so compiler doesn't bug me about variables not used"
self touch: searchBuffer; touch: matchSpacePtr; touch: matchSpaceSize; touch: length
! !
!RePlugin methodsFor: 'rcvr linkage' stamp: 'tpr 8/17/2002 18:01'!
allocateStringAndSetRcvrErrorStrFromCStr: aCStrBuffer
|length errorStrObj errorStrObjPtr |
self var: #aCStrBuffer declareC: 'const char *aCStrBuffer'.
self var: #errorStrObjPtr declareC: 'void *errorStrObjPtr'.
"Allocate errorStrObj"
length _ self cCode: 'strlen(aCStrBuffer)'.
errorStrObj _ interpreterProxy
instantiateClass: (interpreterProxy classString)
indexableSize: length.
self loadRcvrFromStackAt: 0. "Assume garbage collection after instantiation"
"Copy aCStrBuffer to errorStrObj's buffer"
errorStrObjPtr _ interpreterProxy arrayValueOf: errorStrObj.
self cCode:'memcpy(errorStrObjPtr,aCStrBuffer,length)'.
self touch: errorStrObjPtr; touch: errorStrObj.
"Set rcvrErrorStr from errorStrObj and Return"
self rcvrErrorStrFrom: errorStrObj.
^errorStrObj.! !
!RePlugin class methodsFor: 'plugin code generation' stamp: 'tpr 8/17/2002 18:02'!
declareCVarsIn: cg
cg addHeaderFile:'"rePlugin.h"'.
"Memory Managament Error Checking"
cg var: 'netMemory' declareC: 'int netMemory = 0'.
cg var: 'numAllocs' declareC: 'int numAllocs = 0'.
cg var: 'numFrees' declareC: 'int numFrees = 0'.
cg var: 'lastAlloc' declareC: 'int lastAlloc = 0'.
"The receiver Object Pointer"
cg var: 'rcvr' declareC: 'int rcvr'.
"Instance Variables of Receiver Object"
cg var: 'patternStr' declareC: 'int patternStr'.
cg var: 'compileFlags' declareC: 'int compileFlags'.
cg var: 'pcrePtr' declareC: 'int pcrePtr'.
cg var: 'extraPtr' declareC: 'int extraPtr'.
cg var: 'errorStr' declareC: 'int errorStr'.
cg var: 'errorOffset' declareC: 'int errorOffset'.
cg var: 'matchFlags' declareC: 'int matchFlags'.
"Support Variables for Access to Receiver Instance Variables"
cg var: 'patternStrPtr' declareC: 'const char * patternStrPtr'.
cg var: 'errorStrBuffer' declareC: 'const char * errorStrBuffer'.! !
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