mirror of https://github.com/bsnes-emu/bsnes.git
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#ifdef NALL_STRING_INTERNAL_HPP
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namespace nall {
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//limit defaults to zero, which will underflow on first compare; equivalent to no limit
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template<unsigned Limit> char* ltrim(char* str, const char* key) {
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if(!str || !key || !*key) return str;
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unsigned limit = Limit;
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while(strbegin(str, key)) {
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char* dest = str;
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char* src = str + strlen(key);
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while(true) {
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*dest = *src++;
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if(!*dest) break;
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dest++;
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}
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if(--limit == 0) break;
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}
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return str;
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}
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template<unsigned Limit> char* rtrim(char* str, const char* key) {
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if(!str || !key || !*key) return str;
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unsigned limit = Limit;
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while(strend(str, key)) {
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str[strlen(str) - strlen(key)] = 0;
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if(--limit == 0) break;
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}
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return str;
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}
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template<unsigned limit> char* trim(char* str, const char* key) {
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return ltrim<limit>(rtrim<limit>(str, key), key);
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}
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template<unsigned limit> char* trim(char* str, const char* lkey, const char* rkey) {
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return ltrim<limit>(rtrim<limit>(str, rkey), lkey);
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}
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//remove whitespace characters from both left and right sides of string
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char* strip(char* s) {
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if(!s) return nullptr;
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signed n = 0, p = 0;
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while(s[n]) {
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if(s[n] != ' ' && s[n] != '\t' && s[n] != '\r' && s[n] != '\n') break;
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n++;
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}
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while(s[n]) s[p++] = s[n++];
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s[p--] = 0;
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while(p >= 0) {
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if(s[p] != ' ' && s[p] != '\t' && s[p] != '\r' && s[p] != '\n') break;
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p--;
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}
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s[++p] = 0;
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return s;
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}
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}
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#endif
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