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view src/luan/LuaSource.java @ 43:80b67b1a653c
implement string lib
git-svn-id: https://luan-java.googlecode.com/svn/trunk@44 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Tue, 25 Dec 2012 03:42:42 +0000 |
parents | c53dc854e6cc |
children |
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line source
package luan; public final class LuaSource { public final String name; public final String text; public LuaSource(String name,String text) { this.name = name; this.text = text; } public static final class Element extends LuaElement { public final LuaSource source; public final int start; public final int end; public Element(LuaSource source,int start,int end) { if( source==null ) throw new NullPointerException("source is null"); this.source = source; this.start = start; this.end = end; } public String text() { return source.text.substring(start,end); } @Override String location() { return source.name + ':' + lineNumber(); } private int lineNumber() { int line = 0; int i = -1; do { line++; i = source.text.indexOf('\n',i+1); } while( i != -1 && i < start ); return line; } } }