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1289
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1 package luan.modules.parsers;
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2
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3 import luan.LuanState;
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4 import luan.LuanTable;
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5 import luan.lib.parser.Parser;
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6
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7
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8 public final class Css {
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9
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10 public static LuanTable style(LuanState luan,String text) {
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11 return new Css(luan,text).parseStyle();
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12 }
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13
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14 private final LuanState luan;
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15 private final Parser parser;
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16
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17 private Css(LuanState luan,String text) {
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18 this.luan = luan;
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19 this.parser = new Parser(text);
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20 }
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21
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22 private LuanTable parseStyle() {
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23 LuanTable tbl = new LuanTable(luan);
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24 while( matchSpace() );
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25 while( !parser.endOfInput() ) {
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26 int start = parser.currentIndex();
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27 if( !matchPropertyChar() )
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28 return null;
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29 while( matchPropertyChar() );
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30 String prop = parser.textFrom(start).toLowerCase();
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31
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32 while( matchSpace() );
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33 if( !parser.match(':') )
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34 return null;
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35
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36 start = parser.currentIndex();
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37 while( !parser.endOfInput() && parser.noneOf(";") );
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38 String val = parser.textFrom(start).trim();
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39
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40 tbl.rawPut(prop,val);
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41 parser.match(';');
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42 while( matchSpace() );
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43 }
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44 return tbl;
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45 }
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46
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47 private boolean matchPropertyChar() {
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48 return parser.inCharRange('a','z')
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49 || parser.inCharRange('A','Z')
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50 || parser.inCharRange('0','9')
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51 || parser.anyOf("_-")
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52 ;
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53 }
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54
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55 private boolean matchSpace() {
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56 return parser.anyOf(" \t\r\n");
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57 }
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58
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59 }
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