62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
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/*===========================================================================
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isrcmem.h
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Provides helper macros and typedefs for parsing memory buffers
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see parsifal.h for copyright info
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USAGE
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declare inputsource handler function (note param names
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must be exactly buf, cBytes etc.):
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int MemInputsrc(BYTE *buf, int cBytes, int *cBytesActual, void *inputData);
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int MemInputsrc(BYTE *buf, int cBytes, int *cBytesActual, void *inputData)
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{
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XMLMEMINPUTSRC_HANDLE
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}
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.....
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LPXMLPARSER parser;
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XMLMEMINPUTSRC meminput;
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char *xml = "<root><child1/><child2>text</child2></root>";
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XMLMEMINPUTSRC_INIT(&meminput, xml, strlen(xml));
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XMLParser_Create(&parser);
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XMLParser_Parse(parser, MemInputsrc, &meminput, NULL);
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.....
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===========================================================================*/
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#ifndef ISRCMEM__H
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#define ISRCMEM__H
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typedef struct tagXMLMEMINPUTSRC
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{
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BYTE *pBuf;
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unsigned long cTotal;
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unsigned long cBytes;
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} XMLMEMINPUTSRC, *LPXMLMEMINPUTSRC;
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#define XMLMEMINPUTSRC_INIT(lpMemISrc,buf,size) \
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(((LPXMLMEMINPUTSRC)lpMemISrc)->cTotal=(size), \
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((LPXMLMEMINPUTSRC)lpMemISrc)->cBytes=0, \
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((LPXMLMEMINPUTSRC)lpMemISrc)->pBuf=(buf))
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#define XMLMEMINPUTSRC_HANDLE \
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if ((((LPXMLMEMINPUTSRC)inputData)->cBytes + cBytes) < ((LPXMLMEMINPUTSRC)inputData)->cTotal) { \
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memcpy(buf, ((LPXMLMEMINPUTSRC)inputData)->pBuf+((LPXMLMEMINPUTSRC)inputData)->cBytes, cBytes); \
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*cBytesActual = cBytes; \
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((LPXMLMEMINPUTSRC)inputData)->cBytes += cBytes; \
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return 0; \
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} \
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else { \
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*cBytesActual = ((LPXMLMEMINPUTSRC)inputData)->cTotal - ((LPXMLMEMINPUTSRC)inputData)->cBytes; \
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if (*cBytesActual) { \
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memcpy(buf, ((LPXMLMEMINPUTSRC)inputData)->pBuf+((LPXMLMEMINPUTSRC)inputData)->cBytes, *cBytesActual); \
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((LPXMLMEMINPUTSRC)inputData)->cBytes += *cBytesActual; } \
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return 1; \
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}
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#endif /* ISRCMEM__H */
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