Welcome to Gnome

/* * testXPath.c : a small tester program for XPath. * * See Copyright for the status of this software. * * daniel@veillard.com */ #include "libxml.h" #if defined(LIBXML_XPATH_ENABLED) && defined(LIBXML_DEBUG_ENABLED) #include #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_STAT_H #include #endif #ifdef HAVE_FCNTL_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #include #include #include #include #include #include #include #include #include #if defined(LIBXML_XPTR_ENABLED) #include static int xptr = 0; #endif static int debug = 0; static int valid = 0; static int expr = 0; static int tree = 0; static int nocdata = 0; static xmlDocPtr document = NULL; /* * Default document */ static xmlChar buffer[] = "\n\ \n\ \n\ Welcome to Gnome\n\ \n\ \n\ The Linux adventure\n\

bla bla bla ...

\n\ \n\

...

\n\ \n\ \n\ Chapter 2\n\

this is chapter 2 ...

\n\ \n\ \n\ Chapter 3\n\

this is chapter 3 ...

\n\ \n\ \n\ "; static void testXPath(const char *str) { xmlXPathObjectPtr res; xmlXPathContextPtr ctxt; #if defined(LIBXML_XPTR_ENABLED) if (xptr) { ctxt = xmlXPtrNewContext(document, NULL, NULL); res = xmlXPtrEval(BAD_CAST str, ctxt); } else { #endif ctxt = xmlXPathNewContext(document); ctxt->node = xmlDocGetRootElement(document); if (expr) res = xmlXPathEvalExpression(BAD_CAST str, ctxt); else { /* res = xmlXPathEval(BAD_CAST str, ctxt); */ xmlXPathCompExprPtr comp; comp = xmlXPathCompile(BAD_CAST str); if (comp != NULL) { if (tree) xmlXPathDebugDumpCompExpr(stdout, comp, 0); res = xmlXPathCompiledEval(comp, ctxt); xmlXPathFreeCompExpr(comp); } else res = NULL; } #if defined(LIBXML_XPTR_ENABLED) } #endif xmlXPathDebugDumpObject(stdout, res, 0); xmlXPathFreeObject(res); xmlXPathFreeContext(ctxt); } static void testXPathFile(const char *filename) { FILE *input; char expression[5000]; int len; input = fopen(filename, "r"); if (input == NULL) { xmlGenericError(xmlGenericErrorContext, "Cannot open %s for reading\n", filename); return; } while (fgets(expression, 4500, input) != NULL) { len = strlen(expression); len--; while ((len >= 0) && ((expression[len] == '\n') || (expression[len] == '\t') || (expression[len] == '\r') || (expression[len] == ' '))) len--; expression[len + 1] = 0; if (len >= 0) { printf("\n========================\nExpression: %s\n", expression) ; testXPath(expression); } } fclose(input); } int main(int argc, char **argv) { int i; int strings = 0; int usefile = 0; char *filename = NULL; for (i = 1; i < argc ; i++) { #if defined(LIBXML_XPTR_ENABLED) if ((!strcmp(argv[i], "-xptr")) || (!strcmp(argv[i], "--xptr"))) xptr++; else #endif if ((!strcmp(argv[i], "-debug")) || (!strcmp(argv[i], "--debug"))) debug++; else if ((!strcmp(argv[i], "-valid")) || (!strcmp(argv[i], "--valid"))) valid++; else if ((!strcmp(argv[i], "-expr")) || (!strcmp(argv[i], "--expr"))) expr++; else if ((!strcmp(argv[i], "-tree")) || (!strcmp(argv[i], "--tree"))) tree++; else if ((!strcmp(argv[i], "-nocdata")) || (!strcmp(argv[i], "--nocdata"))) nocdata++; else if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input"))) filename = argv[++i]; else if ((!strcmp(argv[i], "-f")) || (!strcmp(argv[i], "--file"))) usefile++; } if (valid != 0) xmlDoValidityCheckingDefaultValue = 1; xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS; xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS; xmlSubstituteEntitiesDefaultValue = 1; if (nocdata != 0) { xmlDefaultSAXHandlerInit(); xmlDefaultSAXHandler.cdataBlock = NULL; } if (document == NULL) { if (filename == NULL) document = xmlReadDoc(buffer,NULL,NULL,0); else document = xmlReadFile(filename,NULL,0); } for (i = 1; i < argc ; i++) { if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "--input"))) { i++; continue; } if (argv[i][0] != '-') { if (usefile) testXPathFile(argv[i]); else testXPath(argv[i]); strings ++; } } if (strings == 0) { printf("Usage : %s [--debug] [--copy] stringsorfiles ...\n", argv[0]); printf("\tParse the XPath strings and output the result of the parsing\n"); printf("\t--debug : dump a debug version of the result\n"); printf("\t--valid : switch on DTD support in the parser\n"); #if defined(LIBXML_XPTR_ENABLED) printf("\t--xptr : expressions are XPointer expressions\n"); #endif printf("\t--expr : debug XPath expressions only\n"); printf("\t--tree : show the compiled XPath tree\n"); printf("\t--nocdata : do not generate CDATA nodes\n"); printf("\t--input filename : or\n"); printf("\t-i filename : read the document from filename\n"); printf("\t--file : or\n"); printf("\t-f : read queries from files, args\n"); } if (document != NULL) xmlFreeDoc(document); xmlCleanupParser(); xmlMemoryDump(); return(0); } #else #include int main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) { printf("%s : XPath/Debug support not compiled in\n", argv[0]); return(0); } #endif /* LIBXML_XPATH_ENABLED */