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/*
* Copyright (C)2005-2012 Haxe Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
import cs.system.text.regularexpressions.Regex;
import cs.system.text.regularexpressions.Match;
import cs.system.text.regularexpressions.RegexOptions;
import cs.system.text.regularexpressions.*;
@:coreApi @:final class EReg {
private var regex : Regex;
private var m : Match;
private var isGlobal : Bool;
private var cur : String;
public function new( r : String, opt : String ) : Void {
var opts:Int = cast CultureInvariant;
for (i in 0...opt.length) untyped {
switch(cast(opt[i], Int))
{
case 'i'.code:
opts |= cast(IgnoreCase, Int);
case 'g'.code:
isGlobal = true;
case 'm'.code:
opts |= cast(Multiline, Int);
#if (!unity && !unity_std_target)
case 'c'.code:
opts |= cast(Compiled, Int);
#end
}
}
this.regex = new Regex(r, cast(opts, RegexOptions));
}
public function match( s : String ) : Bool {
m = regex.Match(s);
cur = s;
return m.Success;
}
public function matched( n : Int ) : String {
if (m == null || cast(n, UInt) > m.Groups.Count)
throw "EReg::matched";
if (!m.Groups[n].Success) return null;
return m.Groups[n].Value;
}
public function matchedLeft() : String {
return untyped cur.Substring(0, m.Index);
}
public function matchedRight() : String {
return untyped cur.Substring(m.Index + m.Length);
}
public function matchedPos() : { pos : Int, len : Int } {
return { pos : m.Index, len : m.Length };
}
public function matchSub( s : String, pos : Int, len : Int = -1):Bool {
m= if (len<0) regex.Match(s,pos) else regex.Match(s, pos, len);
cur = s;
return m.Success;
}
public function split( s : String ) : Array<String> {
if (isGlobal)
return cs.Lib.array(regex.Split(s));
var m = regex.Match(s);
if (!m.Success) return [s];
return untyped [s.Substring(0, m.Index), s.Substring(m.Index + m.Length)];
}
inline function start(group:Int) : Int
{
return m.Groups[group].Index;
}
inline function len(group:Int) : Int
{
return m.Groups[group].Length;
}
public function replace( s : String, by : String ) : String
{
return (isGlobal) ? regex.Replace(s, by): regex.Replace(s,by,1);
}
public function map( s : String, f : EReg -> String ) : String {
var offset = 0;
var buf = new StringBuf();
do {
if (offset >= s.length)
break;
else if (!matchSub(s, offset)) {
buf.add(s.substr(offset));
break;
}
var p = matchedPos();
buf.add(s.substr(offset, p.pos - offset));
buf.add(f(this));
if (p.len == 0) {
buf.add(s.substr(p.pos, 1));
offset = p.pos + 1;
}
else
offset = p.pos + p.len;
} while (isGlobal);
if (!isGlobal && offset > 0 && offset < s.length)
buf.add(s.substr(offset));
return buf.toString();
}
}
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