mirror of https://github.com/bsnes-emu/bsnes.git
103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
#pragma once
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namespace nall {
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auto string::trim(string_view lhs, string_view rhs, long limit) -> string& {
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trimRight(rhs, limit);
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trimLeft(lhs, limit);
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return *this;
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}
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auto string::trimLeft(string_view lhs, long limit) -> string& {
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if(lhs.size() == 0) return *this;
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long matches = 0;
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while(matches < limit) {
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int offset = lhs.size() * matches;
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int length = (int)size() - offset;
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if(length < (int)lhs.size()) break;
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if(memory::compare(data() + offset, lhs.data(), lhs.size()) != 0) break;
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matches++;
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}
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if(matches) remove(0, lhs.size() * matches);
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return *this;
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}
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auto string::trimRight(string_view rhs, long limit) -> string& {
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if(rhs.size() == 0) return *this;
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long matches = 0;
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while(matches < limit) {
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int offset = (int)size() - rhs.size() * (matches + 1);
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int length = (int)size() - offset;
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if(offset < 0 || length < (int)rhs.size()) break;
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if(memory::compare(data() + offset, rhs.data(), rhs.size()) != 0) break;
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matches++;
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}
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if(matches) resize(size() - rhs.size() * matches);
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return *this;
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}
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auto string::itrim(string_view lhs, string_view rhs, long limit) -> string& {
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itrimRight(rhs, limit);
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itrimLeft(lhs, limit);
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return *this;
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}
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auto string::itrimLeft(string_view lhs, long limit) -> string& {
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if(lhs.size() == 0) return *this;
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long matches = 0;
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while(matches < limit) {
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int offset = lhs.size() * matches;
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int length = (int)size() - offset;
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if(length < (int)lhs.size()) break;
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if(memory::icompare(data() + offset, lhs.data(), lhs.size()) != 0) break;
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matches++;
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}
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if(matches) remove(0, lhs.size() * matches);
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return *this;
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}
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auto string::itrimRight(string_view rhs, long limit) -> string& {
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if(rhs.size() == 0) return *this;
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long matches = 0;
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while(matches < limit) {
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int offset = (int)size() - rhs.size() * (matches + 1);
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int length = (int)size() - offset;
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if(offset < 0 || length < (int)rhs.size()) break;
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if(memory::icompare(data() + offset, rhs.data(), rhs.size()) != 0) break;
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matches++;
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}
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if(matches) resize(size() - rhs.size() * matches);
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return *this;
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}
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auto string::strip() -> string& {
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stripRight();
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stripLeft();
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return *this;
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}
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auto string::stripLeft() -> string& {
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uint length = 0;
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while(length < size()) {
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char input = operator[](length);
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if(input != ' ' && input != '\t' && input != '\r' && input != '\n') break;
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length++;
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}
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if(length) remove(0, length);
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return *this;
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}
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auto string::stripRight() -> string& {
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uint length = 0;
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while(length < size()) {
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bool matched = false;
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char input = operator[](size() - length - 1);
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if(input != ' ' && input != '\t' && input != '\r' && input != '\n') break;
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length++;
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}
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if(length) resize(size() - length);
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return *this;
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}
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}
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