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still more cleanups to chars.c and related code 

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2648 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
master
David Lawrence Ramsey 2005-06-13 13:25:36 +00:00
parent 8b698f4a29
commit 7b601fdbe1
3 changed files with 42 additions and 28 deletions
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9
ChangeLog
View File

@ -55,11 +55,14 @@ CVS code -
main(), search_init(), nanorc.sample, nano.1, nanorc.5,
nano.texi, etc. (DLR)
- Various cleanups in chars.c. Remove some unnecessary (w)ctype
wrappers, change other ctype wrappers to take wint_t instead
of wchar_t, and rename some functions for consistency. Changes
wrappers; change other ctype wrappers to take wint_t instead
of wchar_t; rename some functions for consistency; and don't
count matches between valid and invalid multibyte sequences
anymore, as it causes problems when doing a replace. Changes
to is_alnum_mbchar(), is_blank_char() (renamed nisblank()),
is_blank_mbchar(), is_blank_wchar() (renamed niswblank()),
is_cntrl_wchar(), control_rep(), control_mbrep(), etc.;
is_cntrl_wchar(), control_rep(), control_mbrep(),
mbstrncasecmp(), mbstrcasestr(), mbrevstrcasestr(), etc.;
removal of is_alnum_char() and is_alnum_wchar(). (DLR)
- Implement word count via Meta-D at the main window. Note that
this is disabled when NANO_SMALL is defined. New functions

59
src/chars.c
View File

@ -201,17 +201,15 @@ char *control_mbrep(const char *c, char *crep, int *crep_len)
}
*crep_len = crep_mb_len;
return crep;
} else {
#endif
*crep_len = 1;
*crep = control_rep(*c);
return crep;
#ifdef NANO_WIDE
}
#endif
return crep;
}
/* This function is equivalent to wcwidth() for multibyte characters. */
@ -244,7 +242,7 @@ int mb_cur_max(void)
{
return
#ifdef NANO_WIDE
!ISSET(NO_UTF8) ? MB_CUR_MAX :
(!ISSET(NO_UTF8)) ? MB_CUR_MAX :
#endif
1;
}
@ -295,12 +293,12 @@ char *make_mbstring(const char *str)
size_t str_mb_len = 0;
while (*str != '\0') {
bool bad_char;
bool bad_chr;
int i;
chr_mb_len = parse_mbchar(str, chr_mb, &bad_char, NULL);
chr_mb_len = parse_mbchar(str, chr_mb, &bad_chr, NULL);
if (bad_char) {
if (bad_chr) {
char *bad_chr_mb;
int bad_chr_mb_len;
@ -329,7 +327,7 @@ char *make_mbstring(const char *str)
#endif
return mallocstrcpy(NULL, str);
}
#endif
#endif /* ENABLE_NANORC || NANO_EXTRA */
/* Parse a multibyte character from buf. Return the number of bytes
* used. If chr isn't NULL, store the multibyte character in it. If
@ -483,7 +481,7 @@ int nstrncasecmp(const char *s1, const char *s2, size_t n)
}
if (n > 0)
return (tolower(*s1) - tolower(*s2));
return tolower(*s1) - tolower(*s2);
else
return 0;
}
@ -502,6 +500,7 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)
assert(s1 != NULL && s2 != NULL);
while (n > 0 && *s1 != '\0' && *s2 != '\0') {
bool bad_s1_mb = FALSE, bad_s2_mb = FALSE;
int s1_mb_len, s2_mb_len;
s1_mb_len = parse_mbchar(s1, s1_mb, NULL, NULL);
@ -509,6 +508,7 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)
if (mbtowc(&ws1, s1_mb, s1_mb_len) <= 0) {
mbtowc(NULL, NULL, 0);
ws1 = (unsigned char)*s1_mb;
bad_s1_mb = TRUE;
}
s2_mb_len = parse_mbchar(s2, s2_mb, NULL, NULL);
@ -516,9 +516,11 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)
if (mbtowc(&ws2, s2_mb, s2_mb_len) <= 0) {
mbtowc(NULL, NULL, 0);
ws2 = (unsigned char)*s2_mb;
bad_s2_mb = TRUE;
}
if (n == 0 || towlower(ws1) != towlower(ws2))
if (n == 0 || bad_s1_mb != bad_s2_mb ||
towlower(ws1) != towlower(ws2))
break;
s1 += s1_mb_len;
@ -529,7 +531,7 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)
free(s1_mb);
free(s2_mb);
return (towlower(ws1) - towlower(ws2));
return towlower(ws1) - towlower(ws2);
} else
#endif
return strncasecmp(s1, s2, n);
@ -573,11 +575,14 @@ const char *mbstrcasestr(const char *haystack, const char *needle)
int r_mb_len, q_mb_len;
while (*q != '\0') {
bool bad_r_mb = FALSE, bad_q_mb = FALSE;
r_mb_len = parse_mbchar(r, r_mb, NULL, NULL);
if (mbtowc(&wr, r_mb, r_mb_len) <= 0) {
mbtowc(NULL, NULL, 0);
wr = (unsigned char)*r;
bad_r_mb = TRUE;
}
q_mb_len = parse_mbchar(q, q_mb, NULL, NULL);
@ -585,9 +590,11 @@ const char *mbstrcasestr(const char *haystack, const char *needle)
if (mbtowc(&wq, q_mb, q_mb_len) <= 0) {
mbtowc(NULL, NULL, 0);
wq = (unsigned char)*q;
bad_q_mb = TRUE;
}
if (towlower(wr) != towlower(wq))
if (bad_r_mb != bad_q_mb ||
towlower(wr) != towlower(wq))
break;
r += r_mb_len;
@ -605,13 +612,14 @@ const char *mbstrcasestr(const char *haystack, const char *needle)
free(r_mb);
free(q_mb);
return found_needle ? haystack : NULL;
return (found_needle) ? haystack : NULL;
} else
#endif
return strcasestr(haystack, needle);
}
#if !defined(NANO_SMALL) || !defined(DISABLE_TABCOMP)
#ifndef NANO_SMALL
#ifndef DISABLE_TABCOMP
/* This function is equivalent to strstr(), except in that it scans the
* string in reverse, starting at rev_start. */
const char *revstrstr(const char *haystack, const char *needle, const
@ -631,9 +639,8 @@ const char *revstrstr(const char *haystack, const char *needle, const
return NULL;
}
#endif
#endif /* !DISABLE_TABCOMP */
#ifndef NANO_SMALL
/* This function is equivalent to strcasestr(), except in that it scans
* the string in reverse, starting at rev_start. */
const char *revstrcasestr(const char *haystack, const char *needle,
@ -674,11 +681,14 @@ const char *mbrevstrcasestr(const char *haystack, const char *needle,
int r_mb_len, q_mb_len;
while (*q != '\0') {
bool bad_r_mb = FALSE, bad_q_mb = FALSE;
r_mb_len = parse_mbchar(r, r_mb, NULL, NULL);
if (mbtowc(&wr, r_mb, r_mb_len) <= 0) {
mbtowc(NULL, NULL, 0);
wr = (unsigned char)*r;
bad_r_mb = TRUE;
}
q_mb_len = parse_mbchar(q, q_mb, NULL, NULL);
@ -686,9 +696,11 @@ const char *mbrevstrcasestr(const char *haystack, const char *needle,
if (mbtowc(&wq, q_mb, q_mb_len) <= 0) {
mbtowc(NULL, NULL, 0);
wq = (unsigned char)*q;
bad_q_mb = TRUE;
}
if (towlower(wr) != towlower(wq))
if (bad_r_mb != bad_q_mb ||
towlower(wr) != towlower(wq))
break;
r += r_mb_len;
@ -710,12 +722,12 @@ const char *mbrevstrcasestr(const char *haystack, const char *needle,
free(r_mb);
free(q_mb);
return found_needle ? rev_start : NULL;
return (found_needle) ? rev_start : NULL;
} else
#endif
return revstrcasestr(haystack, needle, rev_start);
}
#endif
#endif /* !NANO_SMALL */
/* This function is equivalent to strlen() for multibyte strings. */
size_t mbstrlen(const char *s)
@ -746,11 +758,10 @@ size_t mbstrnlen(const char *s, size_t maxlen)
#ifdef NANO_WIDE
if (!ISSET(NO_UTF8)) {
size_t n = 0;
char *s_mb = charalloc(MB_CUR_MAX);
int s_mb_len;
while (*s != '\0') {
s_mb_len = parse_mbchar(s, s_mb, NULL, NULL);
s_mb_len = parse_mbchar(s, NULL, NULL, NULL);
if (maxlen == 0)
break;
@ -760,8 +771,6 @@ size_t mbstrnlen(const char *s, size_t maxlen)
n++;
}
free(s_mb);
return n;
} else
#endif
@ -811,4 +820,4 @@ char *mbstrchr(const char *s, char *c)
#endif
return strchr(s, *c);
}
#endif
#endif /* !DISABLE_JUSTIFY */

2
src/proto.h
View File

@ -201,8 +201,10 @@ const char *nstrcasestr(const char *haystack, const char *needle);
#endif
const char *mbstrcasestr(const char *haystack, const char *needle);
#ifndef NANO_SMALL
#ifndef DISABLE_TABCOMP
const char *revstrstr(const char *haystack, const char *needle, const
char *rev_start);
#endif
const char *revstrcasestr(const char *haystack, const char *needle,
const char *rev_start);
const char *mbrevstrcasestr(const char *haystack, const char *needle,