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3066351275
* debugXML.c: made one of the changes suggested by Brian Krahmer * testRegexp.c: allow to pass '--' on the command line to allow regexps starting with the character '-' Daniel svn path=/trunk/; revision=3697
403 lines
10 KiB
C
403 lines
10 KiB
C
/*
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* testRegexp.c: simple module for testing regular expressions
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*
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* See Copyright for the status of this software.
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*
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* Daniel Veillard <veillard@redhat.com>
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*/
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#include "libxml.h"
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#ifdef LIBXML_REGEXP_ENABLED
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#include <string.h>
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#include <libxml/tree.h>
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#include <libxml/xmlregexp.h>
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static int repeat = 0;
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static int debug = 0;
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static void testRegexp(xmlRegexpPtr comp, const char *value) {
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int ret;
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ret = xmlRegexpExec(comp, (const xmlChar *) value);
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if (ret == 1)
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printf("%s: Ok\n", value);
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else if (ret == 0)
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printf("%s: Fail\n", value);
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else
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printf("%s: Error: %d\n", value, ret);
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if (repeat) {
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int j;
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for (j = 0;j < 999999;j++)
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xmlRegexpExec(comp, (const xmlChar *) value);
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}
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}
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static void
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testRegexpFile(const char *filename) {
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xmlRegexpPtr comp = NULL;
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FILE *input;
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char expression[5000];
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int len;
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input = fopen(filename, "r");
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if (input == NULL) {
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xmlGenericError(xmlGenericErrorContext,
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"Cannot open %s for reading\n", filename);
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return;
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}
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while (fgets(expression, 4500, input) != NULL) {
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len = strlen(expression);
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len--;
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while ((len >= 0) &&
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((expression[len] == '\n') || (expression[len] == '\t') ||
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(expression[len] == '\r') || (expression[len] == ' '))) len--;
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expression[len + 1] = 0;
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if (len >= 0) {
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if (expression[0] == '#')
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continue;
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if ((expression[0] == '=') && (expression[1] == '>')) {
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char *pattern = &expression[2];
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if (comp != NULL) {
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xmlRegFreeRegexp(comp);
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comp = NULL;
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}
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printf("Regexp: %s\n", pattern) ;
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comp = xmlRegexpCompile((const xmlChar *) pattern);
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if (comp == NULL) {
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printf(" failed to compile\n");
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break;
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}
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} else if (comp == NULL) {
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printf("Regexp: %s\n", expression) ;
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comp = xmlRegexpCompile((const xmlChar *) expression);
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if (comp == NULL) {
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printf(" failed to compile\n");
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break;
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}
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} else if (comp != NULL) {
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testRegexp(comp, expression);
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}
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}
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}
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fclose(input);
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if (comp != NULL)
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xmlRegFreeRegexp(comp);
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}
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#ifdef LIBXML_EXPR_ENABLED
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static void
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runFileTest(xmlExpCtxtPtr ctxt, const char *filename) {
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xmlExpNodePtr expr = NULL, sub;
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FILE *input;
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char expression[5000];
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int len;
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input = fopen(filename, "r");
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if (input == NULL) {
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xmlGenericError(xmlGenericErrorContext,
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"Cannot open %s for reading\n", filename);
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return;
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}
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while (fgets(expression, 4500, input) != NULL) {
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len = strlen(expression);
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len--;
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while ((len >= 0) &&
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((expression[len] == '\n') || (expression[len] == '\t') ||
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(expression[len] == '\r') || (expression[len] == ' '))) len--;
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expression[len + 1] = 0;
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if (len >= 0) {
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if (expression[0] == '#')
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continue;
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if ((expression[0] == '=') && (expression[1] == '>')) {
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char *str = &expression[2];
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if (expr != NULL) {
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xmlExpFree(ctxt, expr);
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if (xmlExpCtxtNbNodes(ctxt) != 0)
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printf(" Parse/free of Expression leaked %d\n",
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xmlExpCtxtNbNodes(ctxt));
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expr = NULL;
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}
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printf("Expression: %s\n", str) ;
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expr = xmlExpParse(ctxt, str);
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if (expr == NULL) {
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printf(" parsing Failed\n");
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break;
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}
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} else if (expr != NULL) {
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int expect = -1;
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int nodes1, nodes2;
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if (expression[0] == '0')
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expect = 0;
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if (expression[0] == '1')
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expect = 1;
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printf("Subexp: %s", expression + 2) ;
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nodes1 = xmlExpCtxtNbNodes(ctxt);
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sub = xmlExpParse(ctxt, expression + 2);
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if (sub == NULL) {
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printf(" parsing Failed\n");
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break;
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} else {
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int ret;
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nodes2 = xmlExpCtxtNbNodes(ctxt);
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ret = xmlExpSubsume(ctxt, expr, sub);
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if ((expect == 1) && (ret == 1)) {
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printf(" => accept, Ok\n");
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} else if ((expect == 0) && (ret == 0)) {
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printf(" => reject, Ok\n");
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} else if ((expect == 1) && (ret == 0)) {
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printf(" => reject, Failed\n");
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} else if ((expect == 0) && (ret == 1)) {
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printf(" => accept, Failed\n");
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} else {
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printf(" => fail internally\n");
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}
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if (xmlExpCtxtNbNodes(ctxt) > nodes2) {
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printf(" Subsume leaked %d\n",
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xmlExpCtxtNbNodes(ctxt) - nodes2);
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nodes1 += xmlExpCtxtNbNodes(ctxt) - nodes2;
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}
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xmlExpFree(ctxt, sub);
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if (xmlExpCtxtNbNodes(ctxt) > nodes1) {
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printf(" Parse/free leaked %d\n",
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xmlExpCtxtNbNodes(ctxt) - nodes1);
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}
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}
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}
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}
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}
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if (expr != NULL) {
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xmlExpFree(ctxt, expr);
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if (xmlExpCtxtNbNodes(ctxt) != 0)
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printf(" Parse/free of Expression leaked %d\n",
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xmlExpCtxtNbNodes(ctxt));
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}
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fclose(input);
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}
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static void
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testReduce(xmlExpCtxtPtr ctxt, xmlExpNodePtr expr, const char *tst) {
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xmlBufferPtr xmlExpBuf;
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xmlExpNodePtr sub, deriv;
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xmlExpBuf = xmlBufferCreate();
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sub = xmlExpParse(ctxt, tst);
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if (sub == NULL) {
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printf("Subset %s failed to parse\n", tst);
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return;
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}
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xmlExpDump(xmlExpBuf, sub);
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printf("Subset parsed as: %s\n",
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(const char *) xmlBufferContent(xmlExpBuf));
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deriv = xmlExpExpDerive(ctxt, expr, sub);
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if (deriv == NULL) {
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printf("Derivation led to an internal error, report this !\n");
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return;
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} else {
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xmlBufferEmpty(xmlExpBuf);
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xmlExpDump(xmlExpBuf, deriv);
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if (xmlExpIsNillable(deriv))
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printf("Resulting nillable derivation: %s\n",
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(const char *) xmlBufferContent(xmlExpBuf));
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else
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printf("Resulting derivation: %s\n",
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(const char *) xmlBufferContent(xmlExpBuf));
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xmlExpFree(ctxt, deriv);
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}
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xmlExpFree(ctxt, sub);
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}
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static void
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exprDebug(xmlExpCtxtPtr ctxt, xmlExpNodePtr expr) {
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xmlBufferPtr xmlExpBuf;
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xmlExpNodePtr deriv;
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const char *list[40];
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int ret;
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xmlExpBuf = xmlBufferCreate();
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if (expr == NULL) {
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printf("Failed to parse\n");
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return;
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}
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xmlExpDump(xmlExpBuf, expr);
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printf("Parsed as: %s\n", (const char *) xmlBufferContent(xmlExpBuf));
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printf("Max token input = %d\n", xmlExpMaxToken(expr));
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if (xmlExpIsNillable(expr) == 1)
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printf("Is nillable\n");
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ret = xmlExpGetLanguage(ctxt, expr, (const xmlChar **) &list[0], 40);
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if (ret < 0)
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printf("Failed to get list: %d\n", ret);
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else {
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int i;
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printf("Language has %d strings, testing string derivations\n", ret);
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for (i = 0;i < ret;i++) {
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deriv = xmlExpStringDerive(ctxt, expr, BAD_CAST list[i], -1);
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if (deriv == NULL) {
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printf(" %s -> derivation failed\n", list[i]);
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} else {
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xmlBufferEmpty(xmlExpBuf);
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xmlExpDump(xmlExpBuf, deriv);
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printf(" %s -> %s\n", list[i],
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(const char *) xmlBufferContent(xmlExpBuf));
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}
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xmlExpFree(ctxt, deriv);
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}
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}
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xmlBufferFree(xmlExpBuf);
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}
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#endif
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static void usage(const char *name) {
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fprintf(stderr, "Usage: %s [flags]\n", name);
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fprintf(stderr, "Testing tool for libxml2 string and pattern regexps\n");
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fprintf(stderr, " --debug: switch on debugging\n");
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fprintf(stderr, " --repeat: loop on the operation\n");
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#ifdef LIBXML_EXPR_ENABLED
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fprintf(stderr, " --expr: test xmlExp and not xmlRegexp\n");
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#endif
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fprintf(stderr, " --input filename: use the given filename for regexp\n");
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fprintf(stderr, " --input filename: use the given filename for exp\n");
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}
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int main(int argc, char **argv) {
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xmlRegexpPtr comp = NULL;
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#ifdef LIBXML_EXPR_ENABLED
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xmlExpNodePtr expr = NULL;
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int use_exp = 0;
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xmlExpCtxtPtr ctxt = NULL;
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#endif
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const char *pattern = NULL;
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char *filename = NULL;
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int i;
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xmlInitMemory();
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if (argc <= 1) {
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usage(argv[0]);
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return(1);
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}
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for (i = 1; i < argc ; i++) {
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if (!strcmp(argv[i], "-"))
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break;
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if (argv[i][0] != '-')
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continue;
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if (!strcmp(argv[i], "--"))
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break;
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if ((!strcmp(argv[i], "-debug")) || (!strcmp(argv[i], "--debug"))) {
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debug++;
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} else if ((!strcmp(argv[i], "-repeat")) ||
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(!strcmp(argv[i], "--repeat"))) {
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repeat++;
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#ifdef LIBXML_EXPR_ENABLED
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} else if ((!strcmp(argv[i], "-expr")) ||
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(!strcmp(argv[i], "--expr"))) {
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use_exp++;
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#endif
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} else if ((!strcmp(argv[i], "-i")) || (!strcmp(argv[i], "-f")) ||
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(!strcmp(argv[i], "--input")))
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filename = argv[++i];
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else {
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fprintf(stderr, "Unknown option %s\n", argv[i]);
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usage(argv[0]);
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}
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}
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#ifdef LIBXML_EXPR_ENABLED
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if (use_exp)
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ctxt = xmlExpNewCtxt(0, NULL);
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#endif
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if (filename != NULL) {
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#ifdef LIBXML_EXPR_ENABLED
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if (use_exp)
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runFileTest(ctxt, filename);
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else
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#endif
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testRegexpFile(filename);
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} else {
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int data = 0;
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#ifdef LIBXML_EXPR_ENABLED
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if (use_exp) {
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for (i = 1; i < argc ; i++) {
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if (strcmp(argv[i], "--") == 0)
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data = 1;
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else if ((argv[i][0] != '-') || (strcmp(argv[i], "-") == 0) ||
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(data == 1)) {
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if (pattern == NULL) {
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pattern = argv[i];
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printf("Testing expr %s:\n", pattern);
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expr = xmlExpParse(ctxt, pattern);
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if (expr == NULL) {
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printf(" failed to compile\n");
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break;
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}
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if (debug) {
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exprDebug(ctxt, expr);
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}
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} else {
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testReduce(ctxt, expr, argv[i]);
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}
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}
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}
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if (expr != NULL) {
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xmlExpFree(ctxt, expr);
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expr = NULL;
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}
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} else
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#endif
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{
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for (i = 1; i < argc ; i++) {
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if (strcmp(argv[i], "--") == 0)
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data = 1;
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else if ((argv[i][0] != '-') || (strcmp(argv[i], "-") == 0) ||
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(data == 1)) {
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if (pattern == NULL) {
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pattern = argv[i];
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printf("Testing %s:\n", pattern);
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comp = xmlRegexpCompile((const xmlChar *) pattern);
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if (comp == NULL) {
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printf(" failed to compile\n");
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break;
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}
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if (debug)
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xmlRegexpPrint(stdout, comp);
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} else {
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testRegexp(comp, argv[i]);
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}
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}
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}
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if (comp != NULL)
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xmlRegFreeRegexp(comp);
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}
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}
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#ifdef LIBXML_EXPR_ENABLED
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if (ctxt != NULL) {
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printf("Ops: %d nodes, %d cons\n",
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xmlExpCtxtNbNodes(ctxt), xmlExpCtxtNbCons(ctxt));
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xmlExpFreeCtxt(ctxt);
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}
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#endif
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xmlCleanupParser();
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xmlMemoryDump();
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return(0);
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}
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#else
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#include <stdio.h>
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int main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
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printf("%s : Regexp support not compiled in\n", argv[0]);
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return(0);
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}
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#endif /* LIBXML_REGEXP_ENABLED */
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