Source Code Cross Referenced for ParserRuleSet.java in  » Swing-Library » jEdit » org » gjt » sp » jedit » syntax » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Swing Library » jEdit » org.gjt.sp.jedit.syntax 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * ParserRuleSet.java - A set of parser rules
003:         * :tabSize=8:indentSize=8:noTabs=false:
004:         * :folding=explicit:collapseFolds=1:
005:         *
006:         * Copyright (C) 1999 mike dillon
007:         * Portions copyright (C) 2001, 2002 Slava Pestov
008:         *
009:         * This program is free software; you can redistribute it and/or
010:         * modify it under the terms of the GNU General Public License
011:         * as published by the Free Software Foundation; either version 2
012:         * of the License, or any later version.
013:         *
014:         * This program is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
017:         * GNU General Public License for more details.
018:         *
019:         * You should have received a copy of the GNU General Public License
020:         * along with this program; if not, write to the Free Software
021:         * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
022:         */
023:
024:        package org.gjt.sp.jedit.syntax;
025:
026:        //{{{ Imports
027:        import java.util.*;
028:        import java.util.regex.Pattern;
029:
030:        //}}}
031:
032:        /**
033:         * A set of parser rules.
034:         * @author mike dillon
035:         * @version $Id: ParserRuleSet.java 11079 2007-11-16 03:20:00Z vanza $
036:         */
037:        public class ParserRuleSet {
038:            //{{{ getStandardRuleSet() method
039:            /**
040:             * Returns a parser rule set that highlights everything with the
041:             * specified token type.
042:             * @param id The token type
043:             */
044:            public static ParserRuleSet getStandardRuleSet(byte id) {
045:                return standard[id];
046:            } //}}}
047:
048:            //{{{ ParserRuleSet constructor
049:            public ParserRuleSet(String modeName, String setName) {
050:                this .modeName = modeName;
051:                this .setName = setName;
052:                ruleMap = new HashMap<Character, List<ParserRule>>();
053:                imports = new ArrayList<ParserRuleSet>();
054:            } //}}}
055:
056:            //{{{ getModeName() method
057:            public String getModeName() {
058:                return modeName;
059:            } //}}}
060:
061:            //{{{ getSetName() method
062:            public String getSetName() {
063:                return setName;
064:            } //}}}
065:
066:            //{{{ getName() method
067:            public String getName() {
068:                return modeName + "::" + setName;
069:            } //}}}
070:
071:            //{{{ getProperties() method
072:            public Hashtable<String, String> getProperties() {
073:                return props;
074:            } //}}}
075:
076:            //{{{ setProperties() method
077:            public void setProperties(Hashtable<String, String> props) {
078:                this .props = props;
079:                _noWordSep = null;
080:            } //}}}
081:
082:            //{{{ resolveImports() method
083:            /**
084:             * Resolves all rulesets added with {@link #addRuleSet(ParserRuleSet)}.
085:             * @since jEdit 4.2pre3
086:             */
087:            public void resolveImports() {
088:                for (ParserRuleSet ruleset : imports) {
089:                    if (!ruleset.imports.isEmpty()) {
090:                        //prevent infinite recursion
091:                        ruleset.imports.remove(this );
092:                        ruleset.resolveImports();
093:                    }
094:
095:                    for (List<ParserRule> rules : ruleset.ruleMap.values()) {
096:                        for (ParserRule rule : rules) {
097:                            addRule(rule);
098:                        }
099:                    }
100:
101:                    if (ruleset.keywords != null) {
102:                        if (keywords == null)
103:                            keywords = new KeywordMap(ignoreCase);
104:                        keywords.add(ruleset.keywords);
105:                    }
106:                }
107:                imports.clear();
108:            } //}}}
109:
110:            //{{{ addRuleSet() method
111:            /**
112:             * Adds all rules contained in the given ruleset.
113:             * @param ruleset The ruleset
114:             * @since jEdit 4.2pre3
115:             */
116:            public void addRuleSet(ParserRuleSet ruleset) {
117:                imports.add(ruleset);
118:            } //}}}
119:
120:            //{{{ addRule() method
121:            public void addRule(ParserRule r) {
122:                ruleCount++;
123:                Character[] keys;
124:                if (null == r.upHashChars) {
125:                    keys = new Character[1];
126:                    if ((null == r.upHashChar) || (0 >= r.upHashChar.length())) {
127:                        keys[0] = null;
128:                    } else {
129:                        keys[0] = Character.valueOf(r.upHashChar.charAt(0));
130:                    }
131:                } else {
132:                    keys = new Character[r.upHashChars.length];
133:                    int i = 0;
134:                    for (char upHashChar : r.upHashChars) {
135:                        keys[i++] = upHashChar;
136:                    }
137:                }
138:                for (Character key : keys) {
139:                    List<ParserRule> rules = ruleMap.get(key);
140:                    if (null == rules) {
141:                        rules = new ArrayList<ParserRule>();
142:                        ruleMap.put(key, rules);
143:                    }
144:                    int ruleAmount = rules.size();
145:                    rules.add(r);
146:                    // fill the deprecated ParserRule.next pointer
147:                    if (ruleAmount > 0) {
148:                        rules.get(ruleAmount).next = r;
149:                    }
150:                }
151:            } //}}}
152:
153:            //{{{ getRules() method
154:            /**
155:             * @deprecated As the linking between rules is not anymore done within the rule, use {@link #getRules(Character)} instead
156:             */
157:            public ParserRule getRules(char ch) {
158:                List<ParserRule> rules = getRules(Character.valueOf(ch));
159:                return rules.get(0);
160:            } //}}}
161:
162:            //{{{ getRules() method
163:            public List<ParserRule> getRules(Character key) {
164:                Character upperKey = null == key ? null : Character
165:                        .valueOf(Character.toUpperCase(key.charValue()));
166:                List<ParserRule> rules = ruleMap.get(upperKey);
167:                if (null == rules) {
168:                    rules = new ArrayList<ParserRule>();
169:                } else {
170:                    rules = new ArrayList<ParserRule>(rules);
171:                }
172:                if (null != upperKey) {
173:                    List<ParserRule> nullRules = ruleMap.get(null);
174:                    if (null != nullRules) {
175:                        int rulesSize = rules.size();
176:                        if ((0 < rulesSize) && (0 < nullRules.size())) {
177:                            rules.get(rulesSize - 1).next = nullRules.get(0);
178:                        }
179:                        rules.addAll(nullRules);
180:                    }
181:                }
182:                return rules;
183:            } //}}}
184:
185:            //{{{ getRuleCount() method
186:            public int getRuleCount() {
187:                return ruleCount;
188:            } //}}}
189:
190:            //{{{ getTerminateChar() method
191:            /**
192:             * Returns the number of chars that can be read before the rule parsing stops.
193:             *
194:             * @return a number of chars or -1 (default value) if there is no limit
195:             */
196:            public int getTerminateChar() {
197:                return terminateChar;
198:            } //}}}
199:
200:            //{{{ setTerminateChar() method
201:            public void setTerminateChar(int atChar) {
202:                terminateChar = (atChar >= 0) ? atChar : -1;
203:            } //}}}
204:
205:            //{{{ getIgnoreCase() method
206:            public boolean getIgnoreCase() {
207:                return ignoreCase;
208:            } //}}}
209:
210:            //{{{ setIgnoreCase() method
211:            public void setIgnoreCase(boolean b) {
212:                ignoreCase = b;
213:            } //}}}
214:
215:            //{{{ getKeywords() method
216:            public KeywordMap getKeywords() {
217:                return keywords;
218:            } //}}}
219:
220:            //{{{ setKeywords() method
221:            public void setKeywords(KeywordMap km) {
222:                keywords = km;
223:                _noWordSep = null;
224:            } //}}}
225:
226:            //{{{ getHighlightDigits() method
227:            public boolean getHighlightDigits() {
228:                return highlightDigits;
229:            } //}}}
230:
231:            //{{{ setHighlightDigits() method
232:            public void setHighlightDigits(boolean highlightDigits) {
233:                this .highlightDigits = highlightDigits;
234:            } //}}}
235:
236:            //{{{ getDigitRegexp() method
237:            public Pattern getDigitRegexp() {
238:                return digitRE;
239:            } //}}}
240:
241:            //{{{ setDigitRegexp() method
242:            public void setDigitRegexp(Pattern digitRE) {
243:                this .digitRE = digitRE;
244:            } //}}}
245:
246:            //{{{ getEscapeRule() method
247:            public ParserRule getEscapeRule() {
248:                return escapeRule;
249:            } //}}}
250:
251:            //{{{ setEscapeRule() method
252:            public void setEscapeRule(ParserRule escapeRule) {
253:                this .escapeRule = escapeRule;
254:            } //}}}
255:
256:            //{{{ getDefault() method
257:            public byte getDefault() {
258:                return defaultToken;
259:            } //}}}
260:
261:            //{{{ setDefault() method
262:            public void setDefault(byte def) {
263:                defaultToken = def;
264:            } //}}}
265:
266:            //{{{ getNoWordSep() method
267:            public String getNoWordSep() {
268:                if (_noWordSep == null) {
269:                    _noWordSep = noWordSep;
270:                    if (noWordSep == null)
271:                        noWordSep = "";
272:                    if (keywords != null)
273:                        noWordSep += keywords.getNonAlphaNumericChars();
274:                }
275:                return noWordSep;
276:            } //}}}
277:
278:            //{{{ setNoWordSep() method
279:            public void setNoWordSep(String noWordSep) {
280:                this .noWordSep = noWordSep;
281:                _noWordSep = null;
282:            } //}}}
283:
284:            //{{{ isBuiltIn() method
285:            /**
286:             * Returns if this is a built-in ruleset.
287:             * @since jEdit 4.2pre1
288:             */
289:            public boolean isBuiltIn() {
290:                return builtIn;
291:            } //}}}
292:
293:            //{{{ toString() method
294:            public String toString() {
295:                return getClass().getName() + '[' + modeName + "::" + setName
296:                        + ']';
297:            } //}}}
298:
299:            //{{{ Private members
300:            private static ParserRuleSet[] standard;
301:
302:            static {
303:                standard = new ParserRuleSet[Token.ID_COUNT];
304:                for (byte i = 0; i < Token.ID_COUNT; i++) {
305:                    standard[i] = new ParserRuleSet(null, null);
306:                    standard[i].setDefault(i);
307:                    standard[i].builtIn = true;
308:                }
309:            }
310:
311:            private String modeName, setName;
312:            private Hashtable<String, String> props;
313:
314:            private KeywordMap keywords;
315:
316:            private int ruleCount;
317:
318:            private Map<Character, List<ParserRule>> ruleMap;
319:
320:            private final List<ParserRuleSet> imports;
321:
322:            /**
323:             * The number of chars that can be read before the parsing stops.
324:             * &lt;TERMINATE AT_CHAR="1" /&gt;
325:             */
326:            private int terminateChar = -1;
327:            private boolean ignoreCase = true;
328:            private byte defaultToken;
329:            private ParserRule escapeRule;
330:
331:            private boolean highlightDigits;
332:            private Pattern digitRE;
333:
334:            private String _noWordSep;
335:            private String noWordSep;
336:
337:            private boolean builtIn;
338:            //}}}
339:        }
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