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updated for version 7.0044

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This commit is contained in:
Bram Moolenaar 2005-01-25 21:58:26 +00:00
parent 9d75c83f8f
commit 6ebb114c0c
1 changed files with 56 additions and 20 deletions
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76
src/charset.c
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@ -395,39 +395,58 @@ transstr(s)
#if defined(FEAT_SYN_HL) || defined(FEAT_INS_EXPAND) || defined(PROTO) #if defined(FEAT_SYN_HL) || defined(FEAT_INS_EXPAND) || defined(PROTO)
/* /*
* Convert the string "p[len]" to do ignore-case comparing. Uses the current * Convert the string "p[len]" to do ignore-case comparing. Uses the current
* locale. Returns an allocated string (NULL for out-of-memory). * locale.
* When "buf" is NULL returns an allocated string (NULL for out-of-memory).
* Otherwise puts the result in "buf[buflen]".
*/ */
char_u * char_u *
str_foldcase(str, len) str_foldcase(str, orglen, buf, buflen)
char_u *str; char_u *str;
int len; int orglen;
char_u *buf;
int buflen;
{ {
garray_T ga; garray_T ga;
int i; int i;
int len = orglen;
#define GA_CHAR(i) ((char_u *)ga.ga_data)[i] #define GA_CHAR(i) ((char_u *)ga.ga_data)[i]
#define GA_PTR(i) ((char_u *)ga.ga_data + i) #define GA_PTR(i) ((char_u *)ga.ga_data + i)
#define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i])
#define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i)
/* Copy "str" into allocated memory, unmodified. */ /* Copy "str" into "buf" or allocated memory, unmodified. */
ga_init2(&ga, 1, 10); if (buf == NULL)
if (ga_grow(&ga, len + 1) == FAIL) {
return NULL; ga_init2(&ga, 1, 10);
mch_memmove(ga.ga_data, str, (size_t)len); if (ga_grow(&ga, len + 1) == FAIL)
GA_CHAR(len) = NUL; return NULL;
ga.ga_len = len; mch_memmove(ga.ga_data, str, (size_t)len);
ga.ga_len = len;
}
else
{
if (len >= buflen) /* Ugly! */
len = buflen - 1;
mch_memmove(buf, str, (size_t)len);
}
if (buf == NULL)
GA_CHAR(len) = NUL;
else
buf[len] = NUL;
/* Make each character lower case. */ /* Make each character lower case. */
i = 0; i = 0;
while (GA_CHAR(i) != NUL) while (STR_CHAR(i) != NUL)
{ {
#ifdef FEAT_MBYTE #ifdef FEAT_MBYTE
if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(GA_CHAR(i)) > 1)) if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1))
{ {
if (enc_utf8) if (enc_utf8)
{ {
int c, lc; int c, lc;
c = utf_ptr2char(GA_PTR(i)); c = utf_ptr2char(STR_PTR(i));
lc = utf_tolower(c); lc = utf_tolower(c);
if (c != lc) if (c != lc)
{ {
@ -439,34 +458,51 @@ str_foldcase(str, len)
if (ol != nl) if (ol != nl)
{ {
if (nl > ol) if (nl > ol)
if (ga_grow(&ga, nl - ol) == FAIL) {
if (buf == NULL ? ga_grow(&ga, nl - ol + 1) == FAIL
: len + nl - ol >= buflen)
{ {
/* out of memory, keep old char */ /* out of memory, keep old char */
lc = c; lc = c;
nl = ol; nl = ol;
} }
}
if (ol != nl) if (ol != nl)
{ {
mch_memmove(GA_PTR(i) + nl, GA_PTR(i) + ol, if (buf == NULL)
{
mch_memmove(GA_PTR(i) + nl, GA_PTR(i) + ol,
STRLEN(GA_PTR(i) + ol) + 1); STRLEN(GA_PTR(i) + ol) + 1);
ga.ga_len += nl - ol; ga.ga_len += nl - ol;
}
else
{
mch_memmove(buf + i + nl, buf + i + ol,
STRLEN(buf + i + ol) + 1);
len += nl - ol;
}
} }
} }
(void)utf_char2bytes(lc, GA_PTR(i)); (void)utf_char2bytes(lc, STR_PTR(i));
} }
} }
/* skip to next multi-byte char */ /* skip to next multi-byte char */
i += (*mb_ptr2len_check)(GA_PTR(i)); i += (*mb_ptr2len_check)(STR_PTR(i));
} }
else else
#endif #endif
{ {
GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i)); if (buf == NULL)
GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i));
else
buf[i] = TOLOWER_LOC(buf[i]);
++i; ++i;
} }
} }
return (char_u *)ga.ga_data; if (buf == NULL)
return (char_u *)ga.ga_data;
return buf;
} }
#endif #endif