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82 lines
2.4 KiB
82 lines
2.4 KiB
6 years ago
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commit c079afb7724ce4b9ff2d6b1ca4d7e3cdebcbcd1f
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Author: Roland McGrath <roland@hack.frob.com>
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Date: Fri Sep 12 14:58:55 2014 -0700
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Don't use a nested function in rpmatch.
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diff --git a/stdlib/rpmatch.c b/stdlib/rpmatch.c
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index 31285879ee7e6ff6..8c6290551bae1bcf 100644
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--- a/stdlib/rpmatch.c
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+++ b/stdlib/rpmatch.c
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@@ -22,42 +22,40 @@
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#include <regex.h>
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-int
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-rpmatch (response)
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- const char *response;
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+/* Match against one of the response patterns, compiling the pattern
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+ first if necessary. */
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+static int
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+try (const char *response,
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+ const int tag, const int match, const int nomatch,
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+ const char **lastp, regex_t *re)
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{
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- /* Match against one of the response patterns, compiling the pattern
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- first if necessary. */
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- auto int try (const int tag, const int match, const int nomatch,
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- const char **lastp, regex_t *re);
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-
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- int try (const int tag, const int match, const int nomatch,
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- const char **lastp, regex_t *re)
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+ const char *pattern = nl_langinfo (tag);
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+ if (pattern != *lastp)
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{
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- const char *pattern = nl_langinfo (tag);
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- if (pattern != *lastp)
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- {
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- /* The pattern has changed. */
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- if (*lastp)
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- {
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- /* Free the old compiled pattern. */
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- __regfree (re);
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- *lastp = NULL;
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- }
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- /* Compile the pattern and cache it for future runs. */
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- if (__regcomp (re, pattern, REG_EXTENDED) != 0)
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- return -1;
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- *lastp = pattern;
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- }
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-
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- /* Try the pattern. */
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- return __regexec (re, response, 0, NULL, 0) == 0 ? match : nomatch;
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+ /* The pattern has changed. */
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+ if (*lastp != NULL)
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+ {
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+ /* Free the old compiled pattern. */
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+ __regfree (re);
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+ *lastp = NULL;
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+ }
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+ /* Compile the pattern and cache it for future runs. */
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+ if (__regcomp (re, pattern, REG_EXTENDED) != 0)
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+ return -1;
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+ *lastp = pattern;
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}
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+ /* Try the pattern. */
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+ return __regexec (re, response, 0, NULL, 0) == 0 ? match : nomatch;
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+}
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+
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+int
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+rpmatch (const char *response)
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+{
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/* We cache the response patterns and compiled regexps here. */
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static const char *yesexpr, *noexpr;
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static regex_t yesre, nore;
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- return (try (YESEXPR, 1, 0, &yesexpr, &yesre) ?:
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- try (NOEXPR, 0, -1, &noexpr, &nore));
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+ return (try (response, YESEXPR, 1, 0, &yesexpr, &yesre) ?:
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+ try (response, NOEXPR, 0, -1, &noexpr, &nore));
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}
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