mirror of https://github.com/bsnes-emu/bsnes.git
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
#ifdef NALL_STRING_INTERNAL_HPP
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namespace nall {
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template<unsigned Limit, bool Insensitive, bool Quoted>
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string& string::ureplace(rstring key, rstring token) {
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if(key.size() == 0) return *this;
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enum : unsigned { limit = Limit ? Limit : ~0u };
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const char* p = data();
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unsigned counter = 0;
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while(*p) {
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if(quoteskip<Quoted>(p)) continue;
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for(unsigned n = 0;; n++) {
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if(key[n] == 0) { counter++; p += n; break; }
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if(!chrequal<Insensitive>(key[n], p[n])) { p++; break; }
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}
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}
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if(counter == 0) return *this;
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if(Limit) counter = min(counter, Limit);
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char* t = data();
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char* base = nullptr;
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signed displacement = token.size() - key.size();
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signed displacementSize = displacement * counter;
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if(token.size() > key.size()) {
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t = base = strduplicate(data());
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reserve((unsigned)(p - data()) + displacementSize);
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}
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char* o = data();
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while(*t && counter) {
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if(quotecopy<Quoted>(o, t)) continue;
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for(unsigned n = 0;; n++) {
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if(key[n] == 0) { counter--; memcpy(o, token, token.size()); t += key.size(); o += token.size(); break; }
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if(!chrequal<Insensitive>(key[n], t[n])) { *o++ = *t++; break; }
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}
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}
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do *o++ = *t; while(*t++);
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if(base) free(base);
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resize(_size + displacementSize);
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return *this;
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}
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template<unsigned Limit> string& string::replace(rstring key, rstring token) { return ureplace<Limit, false, false>(key, token); }
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template<unsigned Limit> string& string::ireplace(rstring key, rstring token) { return ureplace<Limit, true, false>(key, token); }
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template<unsigned Limit> string& string::qreplace(rstring key, rstring token) { return ureplace<Limit, false, true>(key, token); }
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template<unsigned Limit> string& string::iqreplace(rstring key, rstring token) { return ureplace<Limit, true, true>(key, token); }
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};
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#endif
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