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libs/lmo: fix whitespace handling in string hashing, optimize code

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This commit is contained in:
Jo-Philipp Wich 2012-11-23 10:15:02 +00:00
parent 5fdf562669
commit c647ff9f0e
1 changed files with 4 additions and 9 deletions
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13
libs/lmo/src/lmo_lualib.c
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@ -55,17 +55,12 @@ static uint32_t _lmo_hash_string(lua_State *L, int n) {
if (!str || len >= sizeof(res)) if (!str || len >= sizeof(res))
return 0; return 0;
while (*str && isspace(*str)) for (prev = ' ', ptr = res; *str; prev = *str, str++)
str++;
for (prev = 0, ptr = res; *str; prev = *str, str++)
{ {
if (isspace(*str)) if (isspace(*str))
{ {
if (isspace(prev)) if (!isspace(prev))
continue; *ptr++ = ' ';
*ptr++ = ' ';
} }
else else
{ {
@ -73,7 +68,7 @@ static uint32_t _lmo_hash_string(lua_State *L, int n) {
} }
} }
while ((ptr > res) && isspace(*ptr)) if ((ptr > res) && isspace(*(ptr-1)))
ptr--; ptr--;
return sfh_hash(res, ptr - res); return sfh_hash(res, ptr - res);