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JVM AOT compiler currently generating JavaScript, C++, Haxe, with initial focus on Kotlin and games.
/**
* Copyright (c) 2001, Sergey A. Samokhodkin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form
* must reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
* - Neither the name of jregex nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @version 1.2_01
*/
package regexodus;
import com.jtransc.annotation.JTranscInvisible;
import java.io.Serializable;
/**
* An implementation of the Substitution interface. Performs substitutions in accordance with Perl-like substitution scripts.
* The latter is a string, containing a mix of memory register references and plain text blocks.
* It may look like "some_chars $1 some_chars$2some_chars" or "123${1}45${2}67".
* A tag consisting of '$',not preceded by the escape character'\' and followed by some digits (possibly enclosed in the
* curly brackets) is interpreted as a memory register reference, the digits forming a register ID. If you follow '$'
* with curly brackets, you can also use the Java-identifier-like named groups that may have been defined in the search
* pattern (as well as pure numbers for non-named register IDs), and can specify different modes for the replacement
* with punctuation between the opening bracket and the group name. Modes can be specified by any combination or order
* of '@' to get a case-folded (lower-case-only) replacement of the matched group, '/' to get the reverse of the string
* matched by the group, and ':' to get any opening or closing bracket characters (Unicode categories Ps and Pe,
* including parentheses, square brackets, and curly brackets among many others) in the matched group replaced by their
* closing or opening counterparts. All the rest is considered plain text.
* Upon the Replacer has found a text block that matches the pattern, a references in a replacement string are replaced by the contents of
* corresponding memory registers, and the resulting text replaces the matched block.
* For example, the following code:
*
* System.out.println("\""+
* new Replacer(new Pattern("\\b(\\d+)\\b"),new PerlSubstitution("'$1'")).replace("abc 123 def")
* +"\"");
*
* will print "abc '123' def".
* @see Substitution
* @see Replacer
* @see Pattern
*/
@JTranscInvisible
public class PerlSubstitution implements Substitution, Serializable {
//private static Pattern refPtn,argsPtn;
private static Pattern refPtn;
private static int MODE_ID;
private static int NAME_ID;
private static int ESC_ID;
static final int MODE_INSENSITIVE = 1,
MODE_REVERSE = 2,
MODE_BRACKET = 4;
//private static int FN_NAME_ID;
//private static int FN_ARGS_ID;
//private static int ARG_NAME_ID;
private static final String groupRef = "\\$(?:\\{({=mode}\\p{Po}+)?({=name}\\w+)\\})|({=name}\\d+|\\&)|\\\\({esc}.)";
//private static final String fnRef="\\&({fn_name}\\w+)\\(({fn_args}"+groupRef+"(?:,"+groupRef+")*)*\\)";
static {
try {
//refPtn=new Pattern("(?= match.pattern().groupCount()) return;
if (match.isCaptured(i)) match.getGroup(i, dest, modes);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
IntRefHandler that = (IntRefHandler) o;
if (modes != that.modes) return false;
return index != null ? index.equals(that.index) : that.index == null;
}
@Override
public int hashCode() {
int result = index != null ? index.hashCode() : 0;
result = 31 * result + modes;
return result;
}
}
private static class StringRefHandler extends Element {
private String index;
private int modes;
StringRefHandler(String s, String ind, int modes) {
prefix = s;
index = ind;
this.modes = modes;
}
void append(MatchResult match, TextBuffer dest) {
if (prefix != null) dest.append(prefix);
if (index == null) return;
//if(id==null) return; //???
int i = match.pattern().groupId(index);
if (match.isCaptured(i)) match.getGroup(i, dest, modes);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
StringRefHandler that = (StringRefHandler) o;
if (modes != that.modes) return false;
return index != null ? index.equals(that.index) : that.index == null;
}
@Override
public int hashCode() {
int result = index != null ? index.hashCode() : 0;
result = 31 * result + modes;
return result;
}
}
}