50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* This is simple demonstration of how to use expat. This program
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reads an XML document from standard input and writes a line with the
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name of each element to standard output indenting child elements by
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one tab stop more than their parent element. */
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#include <stdio.h>
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#include "expat.h"
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static void
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startElement(void *userData, const char *name, const char **atts)
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{
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int i;
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int *depthPtr = userData;
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for (i = 0; i < *depthPtr; i++)
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putchar('\t');
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puts(name);
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*depthPtr += 1;
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}
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static void
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endElement(void *userData, const char *name)
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{
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int *depthPtr = userData;
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*depthPtr -= 1;
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}
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int
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main(int argc, char *argv[])
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{
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char buf[BUFSIZ];
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XML_Parser parser = XML_ParserCreate(NULL);
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int done;
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int depth = 0;
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XML_SetUserData(parser, &depth);
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XML_SetElementHandler(parser, startElement, endElement);
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do {
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size_t len = fread(buf, 1, sizeof(buf), stdin);
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done = len < sizeof(buf);
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if (!XML_Parse(parser, buf, len, done)) {
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fprintf(stderr,
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"%s at line %d\n",
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XML_ErrorString(XML_GetErrorCode(parser)),
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XML_GetCurrentLineNumber(parser));
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return 1;
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}
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} while (!done);
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XML_ParserFree(parser);
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return 0;
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}
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