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xmllint: Warn about options with no effect

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This commit is contained in:
Nick Wellnhofer
2025-06-08 14:57:56 +02:00
parent 2ffb8c96a3
commit 3e47ceeb72
1 changed files with 127 additions and 7 deletions
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134
xmllint.c
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@@ -2261,13 +2261,7 @@ static void usage(FILE *f, const char *name) {
#endif /* LIBXML_OUTPUT_ENABLED */
fprintf(f, "\t--version : display the version of the XML library used\n");
fprintf(f, "\t--shell : run a navigating shell\n");
#ifdef LIBXML_DEBUG_ENABLED
fprintf(f, "\t--debug : dump a debug tree of the in-memory document\n");
#else
#ifdef LIBXML_READER_ENABLED
fprintf(f, "\t--debug : dump the nodes content when using --stream\n");
#endif /* LIBXML_READER_ENABLED */
#endif
fprintf(f, "\t--debug : show additional debug information\n");
fprintf(f, "\t--copy : used to test the internal copy implementation\n");
fprintf(f, "\t--recover : output what was parsable on broken XML documents\n");
fprintf(f, "\t--huge : remove any internal arbitrary parser limits\n");
@@ -2451,9 +2445,15 @@ xmllintInit(xmllintState *lint) {
#endif
}
static void
xmllintOptWarnNoSupport(FILE *errStream, const char *opt, const char *nosupp) {
fprintf(errStream, "Warning: Option %s doesn't support %s\n", opt, nosupp);
}
static int
xmllintParseOptions(xmllintState *lint, int argc, const char **argv) {
FILE *errStream = lint->errStream;
const char *specialMode = NULL;
int i;
if (argc <= 1) {
@@ -2773,6 +2773,126 @@ xmllintParseOptions(xmllintState *lint, int argc, const char **argv) {
if (lint->shell)
lint->repeat = 1;
#ifdef LIBXML_READER_ENABLED
if (lint->stream) {
specialMode = "--stream";
if (lint->sax)
xmllintOptWarnNoSupport(errStream, "--stream", "--sax");
#ifdef LIBXML_PUSH_ENABLED
if (lint->push)
xmllintOptWarnNoSupport(errStream, "--stream", "--push");
#endif
#ifdef LIBXML_HTML_ENABLED
if (lint->html)
xmllintOptWarnNoSupport(errStream, "--stream", "--html");
#endif
}
#endif /* LIBXML_READER_ENABLED */
if (lint->sax) {
specialMode = "--sax";
#ifdef LIBXML_XINCLUDE_ENABLED
if (lint->xinclude)
xmllintOptWarnNoSupport(errStream, "--sax", "--xinclude");
#endif
#ifdef LIBXML_RELAXNG_ENABLED
if (lint->relaxng != NULL)
xmllintOptWarnNoSupport(errStream, "--sax", "--relaxng");
#endif
}
if (specialMode != NULL) {
if (lint->generate)
xmllintOptWarnNoSupport(errStream, specialMode, "--auto");
if (lint->dropdtd)
xmllintOptWarnNoSupport(errStream, specialMode, "--dropdtd");
if (lint->shell)
xmllintOptWarnNoSupport(errStream, specialMode, "--shell");
if (lint->copy)
xmllintOptWarnNoSupport(errStream, specialMode, "--copy");
#ifdef LIBXML_XPATH_ENABLED
if (lint->xpathquery != NULL)
xmllintOptWarnNoSupport(errStream, specialMode, "--xpath");
#endif
#ifdef LIBXML_READER_ENABLED
if (lint->walker)
xmllintOptWarnNoSupport(errStream, specialMode, "--walker");
#endif
#ifdef LIBXML_VALID_ENABLED
if (lint->insert)
xmllintOptWarnNoSupport(errStream, specialMode, "--insert");
if (lint->dtdvalid != NULL)
xmllintOptWarnNoSupport(errStream, specialMode, "--dtdvalid");
if (lint->dtdvalidfpi != NULL)
xmllintOptWarnNoSupport(errStream, specialMode, "--dtdvalidfpi");
if (lint->postvalid)
xmllintOptWarnNoSupport(errStream, specialMode, "--postvalid");
#endif
#ifdef LIBXML_SCHEMATRON_ENABLED
if (lint->schematron != NULL)
xmllintOptWarnNoSupport(errStream, specialMode, "--schematron");
#endif
#ifdef LIBXML_OUTPUT_ENABLED
if (lint->output != NULL)
xmllintOptWarnNoSupport(errStream, specialMode, "--output");
if (lint->encoding != NULL)
xmllintOptWarnNoSupport(errStream, specialMode, "--encode");
if (lint->format > 0)
xmllintOptWarnNoSupport(errStream, specialMode,
"--format or -pretty");
if (lint->compress)
xmllintOptWarnNoSupport(errStream, specialMode, "--compress");
#endif
#ifdef LIBXML_HTML_ENABLED
if (lint->xmlout)
xmllintOptWarnNoSupport(errStream, specialMode, "--xmlout");
#endif
}
#if defined(LIBXML_READER_ENABLED) && defined(LIBXML_PATTERN_ENABLED)
if (lint->pattern && !(lint->stream || lint->walker))
fprintf(errStream, "Warning: Option %s requires %s\n",
"--pattern", "--stream or --walker");
#endif
#ifdef LIBXML_HTML_ENABLED
if (lint->html) {
if (lint->options & XML_PARSE_DTDATTR)
xmllintOptWarnNoSupport(errStream, "--html", "--dtdattr");
if (lint->options & XML_PARSE_DTDLOAD)
xmllintOptWarnNoSupport(errStream, "--html", "--loaddtd");
if (lint->maxAmpl)
xmllintOptWarnNoSupport(errStream, "--html", "--max-ampl");
if (lint->options & XML_PARSE_NOCDATA)
xmllintOptWarnNoSupport(errStream, "--html", "--nocdata");
if (lint->options & XML_PARSE_NODICT)
xmllintOptWarnNoSupport(errStream, "--html", "--nodict");
if (lint->options & XML_PARSE_NOENT)
xmllintOptWarnNoSupport(errStream, "--html", "--noent");
if (lint->options & XML_PARSE_NONET)
xmllintOptWarnNoSupport(errStream, "--html", "--nonet");
if (lint->options & XML_PARSE_NSCLEAN)
xmllintOptWarnNoSupport(errStream, "--html", "--nsclean");
if (lint->options & XML_PARSE_OLD10)
xmllintOptWarnNoSupport(errStream, "--html", "--oldxml10");
if (lint->options & XML_PARSE_PEDANTIC)
xmllintOptWarnNoSupport(errStream, "--html", "--pedantic");
if (lint->options & XML_PARSE_DTDVALID)
xmllintOptWarnNoSupport(errStream, "--html", "--valid");
if (lint->options & XML_PARSE_SAX1)
xmllintOptWarnNoSupport(errStream, "--html", "--sax1");
} else {
if (lint->htmlOptions & HTML_PARSE_NODEFDTD)
fprintf(errStream, "Warning: Option %s requires %s\n",
"--nodefdtd", "--html");
if (lint->xmlout)
fprintf(errStream, "Warning: Option %s requires %s\n",
"--xmlout", "--html");
}
#endif
return(XMLLINT_RETURN_OK);
}