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/*
* Copyright (C)2005-2019 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.
*/
@:buildXml('<include name="${HXCPP}/src/hx/libs/regexp/Build.xml"/>')
@:coreApi class EReg {
var r:Dynamic;
var last:String;
var global:Bool;
public function new(r:String, opt:String):Void {
var a = opt.split("g");
global = a.length > 1;
if (global)
opt = a.join("");
this.r = _hx_regexp_new_options(r, opt);
}
public function match(s:String):Bool {
var p = _hx_regexp_match(r, s, 0, s.length);
if (p)
last = s;
else
last = null;
return p;
}
public function matched(n:Int):String {
var m = _hx_regexp_matched(r, n);
return m;
}
public function matchedLeft():String {
var p = _hx_regexp_matched_pos(r, 0);
return last.substr(0, p.pos);
}
public function matchedRight():String {
var p = _hx_regexp_matched_pos(r, 0);
var sz = p.pos + p.len;
return last.substr(sz, last.length - sz);
}
public function matchedPos():{pos:Int, len:Int} {
return _hx_regexp_matched_pos(r, 0);
}
public function matchSub(s:String, pos:Int, len:Int = -1):Bool {
var p = _hx_regexp_match(r, s, pos, len < 0 ? s.length - pos : len);
if (p)
last = s;
else
last = null;
return p;
}
public function split(s:String):Array<String> {
var pos = 0;
var len = s.length;
var a = new Array();
var first = true;
do {
if (!_hx_regexp_match(r, s, pos, len))
break;
var p = _hx_regexp_matched_pos(r, 0);
if (p.len == 0 && !first) {
if (p.pos == s.length)
break;
p.pos += 1;
}
a.push(s.substr(pos, p.pos - pos));
var tot = p.pos + p.len - pos;
pos += tot;
len -= tot;
first = false;
} while (global);
a.push(s.substr(pos, len));
return a;
}
public function replace(s:String, by:String):String {
var b = new StringBuf();
var pos = 0;
var len = s.length;
var a = by.split("$");
var first = true;
do {
if (!_hx_regexp_match(r, s, pos, len))
break;
var p = _hx_regexp_matched_pos(r, 0);
if (p.len == 0 && !first) {
if (p.pos == s.length)
break;
p.pos += 1;
}
b.addSub(s, pos, p.pos - pos);
if (a.length > 0)
b.add(a[0]);
var i = 1;
while (i < a.length) {
var k = a[i];
var c = k.charCodeAt(0);
// 1...9
if (c >= 49 && c <= 57) {
var p = try _hx_regexp_matched_pos(r, Std.int(c) - 48) catch (e:String) null;
if (p == null) {
b.add("$");
b.add(k);
} else {
b.addSub(s, p.pos, p.len);
b.addSub(k, 1, k.length - 1);
}
} else if (c == null) {
b.add("$");
i++;
var k2 = a[i];
if (k2 != null && k2.length > 0)
b.add(k2);
} else
b.add("$" + k);
i++;
}
var tot = p.pos + p.len - pos;
pos += tot;
len -= tot;
first = false;
} while (global);
b.addSub(s, pos, len);
return b.toString();
}
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 = _hx_regexp_matched_pos(r, 0);
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 (global);
if (!global && offset > 0 && offset < s.length)
buf.add(s.substr(offset));
return buf.toString();
}
public static function escape(s:String):String {
return escapeRegExpRe.map(s, function(r) return "\\" + r.matched(0));
}
static var escapeRegExpRe = ~/[\[\]{}()*+?.\\\^$|]/g;
function toString():String
return 'EReg($r)';
@:native("_hx_regexp_new_options")
extern static function _hx_regexp_new_options(s:String, options:String):Dynamic;
@:native("_hx_regexp_match")
extern static function _hx_regexp_match(handler:Dynamic, string:String, pos:Int, len:Int):Bool;
@:native("_hx_regexp_matched")
extern static function _hx_regexp_matched(handle:Dynamic, pos:Int):String;
@:native("_hx_regexp_matched_pos")
extern static function _hx_regexp_matched_pos(handle:Dynamic, match:Int):{pos:Int, len:Int};
}
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