From bd44683efa3849302b8b30309834ac72d6bc4eeb Mon Sep 17 00:00:00 2001 From: Fumitoshi UKAI Date: Fri, 22 Nov 2002 15:56:43 +0000 Subject: [w3m-dev 03464] Re: case insensitive regexp search (rewrite [w3m-dev 03462] by Hiroyuki Ito ) * regex.c (matchWhich): add int (newRegex0): igncase (regmatch1): matchWhich with re->mode & RE_IGNCASE (matchWhich): add igncase From: Hironori SAKAMOTO --- regex.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) (limited to 'regex.c') diff --git a/regex.c b/regex.c index f2b02dd..dd1042d 100644 --- a/regex.c +++ b/regex.c @@ -1,4 +1,4 @@ -/* $Id: regex.c,v 1.16 2002/01/21 17:57:28 ukai Exp $ */ +/* $Id: regex.c,v 1.17 2002/11/22 15:56:43 ukai Exp $ */ /* * regex: Regular expression pattern match library * @@ -68,7 +68,7 @@ static Regex DefaultRegex; static int regmatch(regexchar *, char *, char *, int, char **); static int regmatch1(regexchar *, longchar); -static int matchWhich(longchar *, longchar); +static int matchWhich(longchar *, longchar, int); /* * regexCompile: compile regular expression @@ -190,6 +190,8 @@ newRegex0(char **ex, int igncase, Regex *regex, char **msg, int level) *(st_ptr++) = '\0'; re->p.pattern = r; RE_SET_MODE(re, m); + if (igncase) + re->mode |= RE_IGNCASE; re++; break; case '|': @@ -634,15 +636,15 @@ regmatch1(regexchar * re, longchar c) else return (*re->p.pattern == c); case RE_WHICH: - return matchWhich(re->p.pattern, c); + return matchWhich(re->p.pattern, c, re->mode & RE_IGNCASE); case RE_EXCEPT: - return !matchWhich(re->p.pattern, c); + return !matchWhich(re->p.pattern, c, re->mode & RE_IGNCASE); } return 0; } static int -matchWhich(longchar * pattern, longchar c) +matchWhich(longchar * pattern, longchar c, int igncase) { longchar *p = pattern; int ans = 0; @@ -657,6 +659,12 @@ matchWhich(longchar * pattern, longchar c) ans = 1; break; } + else if (igncase && c < 127 && IS_ALPHA(c) && + ((*p <= c && tolower(c) <= *(p + 2)) || + (*p <= c && toupper(c) <= *(p + 2)))) { + ans = 1; + break; + } p += 3; } else { @@ -664,6 +672,11 @@ matchWhich(longchar * pattern, longchar c) ans = 1; break; } + else if (igncase && c < 127 && IS_ALPHA(c) && + (*p == tolower(c) || *p == toupper(c))) { + ans = 1; + break; + } p++; } } -- cgit v1.2.3