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annotate core/src/luan/LuanElement.java @ 481:5d4a78c93383

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luan errors are now tables
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 11 May 2015 20:26:36 -0600
parents b48cfa14ba60
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan;
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4 public final class LuanElement {
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5 public final LuanSource source;
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6 public final int start;
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7 public final int end;
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8 private final String text;
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9
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10 public LuanElement(LuanSource source,int start,int end) {
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11 this(source,start,end,null);
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12 }
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14 public LuanElement(LuanSource source,int start,int end,String text) {
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15 if( source==null )
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16 throw new NullPointerException("source is null");
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17 this.source = source;
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18 this.start = start;
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19 while( end > 0 && Character.isWhitespace(source.text.charAt(end-1)) ) {
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20 end--;
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21 }
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22 this.end = end;
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23 this.text = text;
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24 }
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26 public String text() {
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27 return text!=null ? text : source.text.substring(start,end);
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28 }
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30 int lineNumber() {
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31 int line = 0;
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32 int i = -1;
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33 do {
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34 line++;
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35 i = source.text.indexOf('\n',i+1);
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36 } while( i != -1 && i < start );
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37 return line;
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38 }
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40 }