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--- busybox-1.12.0/findutils/grep.c Sat Aug 9 18:14:59 2008
+++ busybox-1.12.0-grep/findutils/grep.c Fri Sep 19 23:33:15 2008
@@ -87,7 +87,11 @@
struct globals {
int max_matches;
+#if !ENABLE_EXTRA_COMPAT
int reflags;
+#else
+ RE_TRANSLATE_TYPE case_fold; /* RE_TRANSLATE_TYPE is [[un]signed] char* */
+#endif
smalluint invert_search;
smalluint print_filename;
smalluint open_errors;
@@ -110,7 +114,19 @@
}; \
} while (0)
#define max_matches (G.max_matches )
+#if !ENABLE_EXTRA_COMPAT
#define reflags (G.reflags )
+#else
+#define case_fold (G.case_fold )
+/* http://www.delorie.com/gnu/docs/regex/regex_46.html */
+#define reflags re_syntax_options
+#undef REG_NOSUB
+#undef REG_EXTENDED
+#undef REG_ICASE
+#define REG_NOSUB bug:is:here /* should not be used */
+#define REG_EXTENDED RE_SYNTAX_EGREP
+#define REG_ICASE bug:is:here /* should not be used */
+#endif
#define invert_search (G.invert_search )
#define print_filename (G.print_filename )
#define open_errors (G.open_errors )
@@ -240,6 +256,7 @@
xregcomp(&gl->compiled_regex, gl->pattern, reflags);
#else
memset(&gl->compiled_regex, 0, sizeof(gl->compiled_regex));
+ gl->compiled_regex.translate = case_fold; /* for -i */
if (re_compile_pattern(gl->pattern, strlen(gl->pattern), &gl->compiled_regex))
bb_error_msg_and_die("bad regex '%s'", gl->pattern);
#endif
@@ -532,17 +549,34 @@
if (ENABLE_FEATURE_GREP_FGREP_ALIAS && applet_name[0] == 'f')
option_mask32 |= OPT_F;
+#if !ENABLE_EXTRA_COMPAT
if (!(option_mask32 & (OPT_o | OPT_w)))
reflags = REG_NOSUB;
+#endif
if (ENABLE_FEATURE_GREP_EGREP_ALIAS
&& (applet_name[0] == 'e' || (option_mask32 & OPT_E))
) {
reflags |= REG_EXTENDED;
}
+#if ENABLE_EXTRA_COMPAT
+ else {
+ reflags = RE_SYNTAX_GREP;
+ }
+#endif
- if (option_mask32 & OPT_i)
+ if (option_mask32 & OPT_i) {
+#if !ENABLE_EXTRA_COMPAT
reflags |= REG_ICASE;
+#else
+ int i;
+ case_fold = xmalloc(256);
+ for (i = 0; i < 256; i++)
+ case_fold[i] = (unsigned char)i;
+ for (i = 'a'; i <= 'z'; i++)
+ case_fold[i] = (unsigned char)(i - ('a' - 'A'));
+#endif
+ }
argv += optind;
argc -= optind;
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