bsnes-classic/snesreader/nall/string/trim.hpp

54 lines
1.1 KiB
C++

#ifndef NALL_STRING_TRIM_HPP
#define NALL_STRING_TRIM_HPP
namespace nall {
char* ltrim(char *str, const char *key) {
if(!key || !*key) return str;
while(strbegin(str, key)) {
char *dest = str, *src = str + strlen(key);
while(true) {
*dest = *src++;
if(!*dest) break;
dest++;
}
}
return str;
}
char* rtrim(char *str, const char *key) {
if(!key || !*key) return str;
while(strend(str, key)) str[strlen(str) - strlen(key)] = 0;
return str;
}
char* trim(char *str, const char *key) {
return ltrim(rtrim(str, key), key);
}
char* ltrim_once(char *str, const char *key) {
if(!key || !*key) return str;
if(strbegin(str, key)) {
char *dest = str, *src = str + strlen(key);
while(true) {
*dest = *src++;
if(!*dest) break;
dest++;
}
}
return str;
}
char* rtrim_once(char *str, const char *key) {
if(!key || !*key) return str;
if(strend(str, key)) str[strlen(str) - strlen(key)] = 0;
return str;
}
char* trim_once(char *str, const char *key) {
return ltrim_once(rtrim_once(str, key), key);
}
}
#endif