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Add some more String functions.

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This commit is contained in:
Tor Andersson
2014-01-27 12:11:48 +01:00
parent cbdebfda70
commit 489365dcf3
2 changed files with 136 additions and 6 deletions
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137
jsstring.c
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@@ -73,6 +73,129 @@ static int Sp_charCodeAt(js_State *J, int argc)
return 1;
}
static int Sp_concat(js_State *J, int argc)
{
char * volatile out;
const char *s;
int i, n;
if (argc == 0)
return 1;
s = js_tostring(J, 0);
n = strlen(s);
out = malloc(n + 1);
strcpy(out, s);
if (js_try(J)) {
free(out);
js_throw(J);
}
for (i = 1; i <= argc; ++i) {
s = js_tostring(J, i);
n += strlen(s);
out = realloc(out, n + 1);
strcat(out, s);
}
js_pushstring(J, out);
js_endtry(J);
free(out);
return 1;
}
static int Sp_indexOf(js_State *J, int argc)
{
const char *haystack = js_tostring(J, 0);
const char *needle = js_tostring(J, 1);
int pos = argc > 1 ? js_tointeger(J, 2) : 0;
int len = strlen(needle);
int k = 0;
Rune rune;
while (*haystack) {
if (k >= pos && !strncmp(haystack, needle, len)) {
js_pushnumber(J, k);
return 1;
}
haystack += chartorune(&rune, haystack);
++k;
}
js_pushnumber(J, -1);
return 1;
}
static int Sp_lastIndexOf(js_State *J, int argc)
{
const char *haystack = js_tostring(J, 0);
const char *needle = js_tostring(J, 1);
int pos = strlen(haystack);
int len = strlen(needle);
int k = 0, last = -1;
Rune rune;
if (argc > 1 && !js_isundefined(J, 2))
pos = js_tointeger(J, 2);
while (*haystack && k <= pos) {
if (!strncmp(haystack, needle, len))
last = k;
haystack += chartorune(&rune, haystack);
++k;
}
js_pushnumber(J, last);
return 1;
}
static int Sp_localeCompare(js_State *J, int argc)
{
const char *a = js_tostring(J, 0);
const char *b = js_tostring(J, 1);
return strcmp(a, b);
}
static int Sp_toLowerCase(js_State *J, int argc)
{
const char *src = js_tostring(J, 0);
char *dst = malloc(UTFmax * strlen(src) + 1);
const char *s = src;
char *d = dst;
Rune rune;
while (*s) {
s += chartorune(&rune, s);
rune = tolowerrune(rune);
d += runetochar(d, &rune);
}
if (js_try(J)) {
free(dst);
js_throw(J);
}
js_pushstring(J, dst);
js_endtry(J);
free(dst);
return 1;
}
static int Sp_toUpperCase(js_State *J, int argc)
{
const char *src = js_tostring(J, 0);
char *dst = malloc(UTFmax * strlen(src) + 1);
const char *s = src;
char *d = dst;
Rune rune;
while (*s) {
s += chartorune(&rune, s);
rune = toupperrune(rune);
d += runetochar(d, &rune);
}
if (js_try(J)) {
free(dst);
js_throw(J);
}
js_pushstring(J, dst);
js_endtry(J);
free(dst);
return 1;
}
static int S_fromCharCode(js_State *J, int argc)
{
int i;
@@ -108,18 +231,20 @@ void jsB_initstring(js_State *J)
jsB_propf(J, "valueOf", Sp_valueOf, 0);
jsB_propf(J, "charAt", Sp_charAt, 1);
jsB_propf(J, "charCodeAt", Sp_charCodeAt, 1);
//jsB_propf(J, "concat", Sp_concat, 1);
//jsB_propf(J, "indexOf", Sp_indexOf, 1);
//jsB_propf(J, "lastIndexOf", Sp_lastIndexOf, 1);
//jsB_propf(J, "localeCompare", Sp_localeCompare, 1);
jsB_propf(J, "concat", Sp_concat, 1);
jsB_propf(J, "indexOf", Sp_indexOf, 1);
jsB_propf(J, "lastIndexOf", Sp_lastIndexOf, 1);
jsB_propf(J, "localeCompare", Sp_localeCompare, 1);
//jsB_propf(J, "slice", Sp_slice, 2);
// match (uses regexp)
// replace (uses regexp)
// search (uses regexp)
// split (uses regexp)
//jsB_propf(J, "substring", Sp_substring, 2);
//jsB_propf(J, "toLowerCase", Sp_toLowerCase, 0);
//jsB_propf(J, "toUpperCase", Sp_toUpperCase, 0);
jsB_propf(J, "toLowerCase", Sp_toLowerCase, 0);
jsB_propf(J, "toLocaleLowerCase", Sp_toLowerCase, 0);
jsB_propf(J, "toUpperCase", Sp_toUpperCase, 0);
jsB_propf(J, "toLocaleUpperCase", Sp_toUpperCase, 0);
}
js_newcconstructor(J, jsB_String, jsB_new_String, 1);
{