136 lines
3.8 KiB
Haxe
136 lines
3.8 KiB
Haxe
/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* 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, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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import cs.system.text.regularexpressions.Regex;
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import cs.system.text.regularexpressions.Match;
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import cs.system.text.regularexpressions.RegexOptions;
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import cs.system.text.regularexpressions.*;
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@:coreApi final class EReg {
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private var regex:Regex;
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private var m:Match;
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private var isGlobal:Bool;
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private var cur:String;
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public function new(r:String, opt:String):Void {
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var opts:Int = cast CultureInvariant;
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for (i in 0...opt.length)
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untyped {
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switch (cast(opt[i], Int)) {
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case 'i'.code:
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opts |= cast(IgnoreCase, Int);
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case 'g'.code:
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isGlobal = true;
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case 'm'.code:
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opts |= cast(Multiline, Int);
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#if (!unity && !unity_std_target)
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case 'c'.code:
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opts |= cast(Compiled, Int);
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#end
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}
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}
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this.regex = new Regex(r, cast(opts, RegexOptions));
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}
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public function match(s:String):Bool {
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m = regex.Match(s);
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cur = s;
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return m.Success;
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}
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public function matched(n:Int):String {
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if (m == null || cast(n, UInt) > m.Groups.Count)
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throw "EReg::matched";
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if (!m.Groups[n].Success)
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return null;
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return m.Groups[n].Value;
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}
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public function matchedLeft():String {
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return untyped cur.Substring(0, m.Index);
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}
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public function matchedRight():String {
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return untyped cur.Substring(m.Index + m.Length);
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}
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public function matchedPos():{pos:Int, len:Int} {
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return {pos: m.Index, len: m.Length};
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}
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public function matchSub(s:String, pos:Int, len:Int = -1):Bool {
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m = if (len < 0) regex.Match(s, pos) else regex.Match(s, pos, len);
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cur = s;
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return m.Success;
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}
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public function split(s:String):Array<String> {
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if (isGlobal)
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return cs.Lib.array(regex.Split(s));
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var m = regex.Match(s);
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if (!m.Success)
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return [s];
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return untyped [s.Substring(0, m.Index), s.Substring(m.Index + m.Length)];
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}
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inline function start(group:Int):Int {
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return m.Groups[group].Index;
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}
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inline function len(group:Int):Int {
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return m.Groups[group].Length;
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}
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public function replace(s:String, by:String):String {
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return (isGlobal) ? regex.Replace(s, by) : regex.Replace(s, by, 1);
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}
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public function map(s:String, f:EReg->String):String {
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var offset = 0;
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var buf = new StringBuf();
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do {
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if (offset >= s.length)
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break;
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else if (!matchSub(s, offset)) {
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buf.add(s.substr(offset));
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break;
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}
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var p = matchedPos();
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buf.add(s.substr(offset, p.pos - offset));
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buf.add(f(this));
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if (p.len == 0) {
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buf.add(s.substr(p.pos, 1));
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offset = p.pos + 1;
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} else
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offset = p.pos + p.len;
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} while (isGlobal);
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if (!isGlobal && offset > 0 && offset < s.length)
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buf.add(s.substr(offset));
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return buf.toString();
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}
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public static inline function escape(s:String):String {
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return Regex.Escape(s);
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}
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}
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