admin/mruby-mruby
1
0
Fork 0
mirror of https://github.com/mruby/mruby synced 2026-06-08 16:11:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

reimplement String#capitalize

Browse Source
This commit is contained in:
Yukihiro Matsumoto
2012-05-31 16:31:33 +09:00
parent 0009239f29
commit b05014f6a9
1 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/string.c
+16
View File
@@ -794,6 +794,22 @@ mrb_str_aref_m(mrb_state *mrb, mrb_value str)
static mrb_value
mrb_str_capitalize_bang(mrb_state *mrb, mrb_value str)
{
char *s, *send;
int modify = 0;
if (RSTRING_LEN(str) == 0 || !RSTRING_PTR(str)) return mrb_nil_value();
s = RSTRING_PTR(str); send = RSTRING_END(str);
if (ISLOWER(*s)) {
*s = toupper(*s);
modify = 1;
}
while (++s < send) {
if (ISUPPER(*s)) {
*s = tolower(*s);
modify = 1;
}
}
if (modify) return str;
return mrb_nil_value();
}