diff options
Diffstat (limited to 'Src/utils.c')
| -rw-r--r-- | Src/utils.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/Src/utils.c b/Src/utils.c index db4352908..733f57088 100644 --- a/Src/utils.c +++ b/Src/utils.c @@ -5323,7 +5323,7 @@ mb_metastrlenend(char *ptr, int width, char *eptr) char inchar, *laststart; size_t ret; wchar_t wc; - int num, num_in_char; + int num, num_in_char, complete; if (!isset(MULTIBYTE)) return ztrlen(ptr); @@ -5331,6 +5331,7 @@ mb_metastrlenend(char *ptr, int width, char *eptr) laststart = ptr; ret = MB_INVALID; num = num_in_char = 0; + complete = 1; memset(&mb_shiftstate, 0, sizeof(mb_shiftstate)); while (*ptr && !(eptr && ptr >= eptr)) { @@ -5339,6 +5340,18 @@ mb_metastrlenend(char *ptr, int width, char *eptr) else inchar = *ptr; ptr++; + + if (complete && (inchar >= 0 && inchar <= 0x7f)) { + /* + * We rely on 7-bit US-ASCII as a subset, so skip + * multibyte handling if we have such a character. + */ + num++; + laststart = ptr; + num_in_char = 0; + continue; + } + ret = mbrtowc(&wc, &inchar, 1, &mb_shiftstate); if (ret == MB_INCOMPLETE) { @@ -5358,6 +5371,7 @@ mb_metastrlenend(char *ptr, int width, char *eptr) * so we don't count characters twice. */ num_in_char++; + complete = 0; } else { if (ret == MB_INVALID) { /* Reset, treat as single character */ @@ -5380,6 +5394,7 @@ mb_metastrlenend(char *ptr, int width, char *eptr) num++; laststart = ptr; num_in_char = 0; + complete = 1; } } |