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Add syntax highlighting for list start characters #508
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...ain/java-eclipse/de/jcup/asciidoctoreditor/document/AsciiDoctorCharacterPinPointRule.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| /* | ||
| * Copyright 2018 Albert Tregnaghi | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions | ||
| * and limitations under the License. | ||
| * | ||
| */ | ||
| package de.jcup.asciidoctoreditor.document; | ||
|
|
||
| import org.eclipse.jface.text.rules.ICharacterScanner; | ||
| import org.eclipse.jface.text.rules.IPredicateRule; | ||
| import org.eclipse.jface.text.rules.IToken; | ||
| import org.eclipse.jface.text.rules.Token; | ||
|
|
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| public class AsciiDoctorCharacterPinPointRule implements IPredicateRule { | ||
|
|
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| private IToken token; | ||
| private char[] start; | ||
| private char end; | ||
|
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| public AsciiDoctorCharacterPinPointRule(char start, IToken token) { | ||
| this(new char[] { start }, ' ', token); | ||
| } | ||
|
|
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| public AsciiDoctorCharacterPinPointRule(char[] start, IToken token) { | ||
| this(start, ' ', token); | ||
| } | ||
|
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| public AsciiDoctorCharacterPinPointRule(char[] start, char end, IToken token) { | ||
| this.start = start; | ||
| this.end = end; | ||
| this.token = token; | ||
| } | ||
|
|
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| @Override | ||
| public IToken evaluate(ICharacterScanner scanner) { | ||
| return evaluate(scanner, false); | ||
| } | ||
|
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| @Override | ||
| public IToken evaluate(ICharacterScanner scanner, boolean resume) { | ||
|
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| boolean startOfDocument = scanner.getColumn() == 0; | ||
| boolean newLine = startOfDocument; | ||
| if (!startOfDocument) { | ||
| scanner.unread(); | ||
| int cbefore = scanner.read(); | ||
| newLine = newLine || cbefore == '\n'; | ||
| newLine = newLine || cbefore == '\r'; | ||
| } | ||
|
|
||
| if (!newLine) { | ||
| return Token.UNDEFINED; | ||
| } | ||
| int c = -1; | ||
| Counter counter = new Counter(); | ||
| for (int pos = 0; pos < start.length; pos++) { | ||
| counter.count++; | ||
| c=scanner.read(); | ||
| if (c != start[pos]) { | ||
| counter.cleanup(scanner); | ||
| return Token.UNDEFINED; | ||
| } | ||
|
|
||
| } | ||
| int after = scanner.read(); | ||
| counter.count++; | ||
| if (after == end) { | ||
| return token; | ||
| } | ||
| counter.cleanup(scanner); | ||
| return Token.UNDEFINED; | ||
| } | ||
|
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| @Override | ||
| public IToken getSuccessToken() { | ||
| return token; | ||
| } | ||
|
|
||
| } |
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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