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-rw-r--r--src/nvim/mbyte.c2
-rw-r--r--src/nvim/regexp.c35
2 files changed, 14 insertions, 23 deletions
diff --git a/src/nvim/mbyte.c b/src/nvim/mbyte.c
index 0a7bb78102..c7a56209e4 100644
--- a/src/nvim/mbyte.c
+++ b/src/nvim/mbyte.c
@@ -1387,7 +1387,7 @@ bool mb_isalpha(int a)
return mb_islower(a) || mb_isupper(a);
}
-int utf_strnicmp(const char *s1, const char *s2, size_t n1, size_t n2)
+static int utf_strnicmp(const char *s1, const char *s2, size_t n1, size_t n2)
{
int c1, c2;
char buffer[6];
diff --git a/src/nvim/regexp.c b/src/nvim/regexp.c
index 32fb086ca6..a81990670a 100644
--- a/src/nvim/regexp.c
+++ b/src/nvim/regexp.c
@@ -1627,9 +1627,7 @@ static void mb_decompose(int c, int *c1, int *c2, int *c3)
/// Compare two strings, ignore case if rex.reg_ic set.
/// Return 0 if strings match, non-zero otherwise.
-/// Correct the length "*n" when composing characters are ignored
-/// or for utf8 when both utf codepoints are considered equal because of
-/// case-folding but have different length (e.g. 's' and 'ſ')
+/// Correct the length "*n" when composing characters are ignored.
static int cstrncmp(char *s1, char *s2, int *n)
{
int result;
@@ -1637,11 +1635,8 @@ static int cstrncmp(char *s1, char *s2, int *n)
if (!rex.reg_ic) {
result = strncmp(s1, s2, (size_t)(*n));
} else {
- int l2 = utfc_ptr2len(s2);
- result = utf_strnicmp(s1, s2, (size_t)(*n), (size_t)l2);
- if (result == 0 && l2 < *n) {
- *n = l2;
- }
+ assert(*n >= 0);
+ result = mb_strnicmp(s1, s2, (size_t)(*n));
}
// if it failed and it's utf8 and we want to combineignore:
@@ -6495,9 +6490,11 @@ static bool regmatch(uint8_t *scan, const proftime_T *tm, int *timed_out)
}
}
} else {
- if (cstrncmp((char *)opnd, (char *)rex.input, &len) != 0) {
- status = RA_NOMATCH;
- break;
+ for (i = 0; i < len; i++) {
+ if (opnd[i] != rex.input[i]) {
+ status = RA_NOMATCH;
+ break;
+ }
}
}
rex.input += len;
@@ -13849,25 +13846,19 @@ static int skip_to_start(int c, colnr_T *colp)
static int find_match_text(colnr_T *startcol, int regstart, uint8_t *match_text)
{
colnr_T col = *startcol;
- const int regstart_len = utf_char2len(regstart);
+ const int regstart_len = utf_ptr2len((char *)rex.line + col);
while (true) {
bool match = true;
uint8_t *s1 = match_text;
- // skip regstart
- uint8_t *s2 = rex.line + col + regstart_len;
- if (regstart_len > 1
- && utf_char2len(utf_ptr2char((char *)rex.line + col)) != regstart_len) {
- // because of case-folding of the previously matched text, we may need
- // to skip fewer bytes than utf_char2len(regstart)
- s2 = rex.line + col + utf_char2len(utf_fold(regstart));
- }
+ uint8_t *s2 = rex.line + col + regstart_len; // skip regstart
while (*s1) {
int c1_len = utf_ptr2len((char *)s1);
int c1 = utf_ptr2char((char *)s1);
int c2_len = utf_ptr2len((char *)s2);
int c2 = utf_ptr2char((char *)s2);
- if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) {
+ if ((c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2)))
+ || c1_len != c2_len) {
match = false;
break;
}
@@ -15531,7 +15522,7 @@ static int nfa_regexec_both(uint8_t *line, colnr_T startcol, proftime_T *tm, int
// If match_text is set it contains the full text that must match.
// Nothing else to try. Doesn't handle combining chars well.
- if (prog->match_text != NULL && *prog->match_text != NUL && !rex.reg_icombine) {
+ if (prog->match_text != NULL && !rex.reg_icombine) {
retval = find_match_text(&col, prog->regstart, prog->match_text);
if (REG_MULTI) {
rex.reg_mmatch->rmm_matchcol = col;