142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/*************************************************************************/
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/* regex.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "regex.h"
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#include "nrex.hpp"
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#include "core/os/memory.h"
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void RegEx::_bind_methods() {
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ObjectTypeDB::bind_method(_MD("compile","pattern", "capture"),&RegEx::compile, DEFVAL(9));
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ObjectTypeDB::bind_method(_MD("find","text","start","end"),&RegEx::find, DEFVAL(0), DEFVAL(-1));
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ObjectTypeDB::bind_method(_MD("clear"),&RegEx::clear);
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ObjectTypeDB::bind_method(_MD("is_valid"),&RegEx::is_valid);
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ObjectTypeDB::bind_method(_MD("get_capture_count"),&RegEx::get_capture_count);
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ObjectTypeDB::bind_method(_MD("get_capture","capture"),&RegEx::get_capture);
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ObjectTypeDB::bind_method(_MD("get_capture_start","capture"),&RegEx::get_capture_start);
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ObjectTypeDB::bind_method(_MD("get_captures"),&RegEx::_bind_get_captures);
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};
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StringArray RegEx::_bind_get_captures() const {
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StringArray ret;
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int count = get_capture_count();
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for (int i=0; i<count; i++) {
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String c = get_capture(i);
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ret.push_back(c);
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};
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return ret;
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};
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void RegEx::clear() {
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text.clear();
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captures.clear();
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exp.reset();
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};
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bool RegEx::is_valid() const {
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return exp.valid();
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};
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int RegEx::get_capture_count() const {
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ERR_FAIL_COND_V( !exp.valid(), 0 );
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return exp.capture_size();
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}
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String RegEx::get_capture(int capture) const {
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ERR_FAIL_COND_V( get_capture_count() <= capture, String() );
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return text.substr(captures[capture].start, captures[capture].length);
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}
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int RegEx::get_capture_start(int capture) const {
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ERR_FAIL_COND_V( get_capture_count() <= capture, -1 );
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return captures[capture].start;
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}
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Error RegEx::compile(const String& p_pattern, int capture) {
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clear();
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exp.compile(p_pattern.c_str(), capture);
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ERR_FAIL_COND_V( !exp.valid(), FAILED );
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captures.resize(exp.capture_size());
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return OK;
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};
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int RegEx::find(const String& p_text, int p_start, int p_end) const {
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ERR_FAIL_COND_V( !exp.valid(), -1 );
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ERR_FAIL_COND_V( p_text.length() < p_start, -1 );
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ERR_FAIL_COND_V( p_text.length() < p_end, -1 );
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bool res = exp.match(p_text.c_str(), &captures[0], p_start, p_end);
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if (res) {
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text = p_text;
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return captures[0].start;
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}
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text.clear();
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return -1;
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};
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RegEx::RegEx(const String& p_pattern) {
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compile(p_pattern);
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};
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RegEx::RegEx() {
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};
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RegEx::~RegEx() {
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clear();
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};
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