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46 changes: 46 additions & 0 deletions
46
sonar-objective-c-plugin/src/main/java/org/sonar/objectivec/lexer/BackslashChannel.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /* | ||
| * SonarQube Objective-C (Community) Plugin | ||
| * Copyright (C) 2012-2016 OCTO Technology, Backelite, and contributors | ||
| * mailto:[email protected] | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 3 of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
| */ | ||
| package org.sonar.objectivec.lexer; | ||
|
|
||
| import com.sonar.sslr.impl.Lexer; | ||
| import org.sonar.sslr.channel.Channel; | ||
| import org.sonar.sslr.channel.CodeReader; | ||
|
|
||
| /** | ||
| * @author Sonar C++ Plugin (Community) authors | ||
| */ | ||
| public class BackslashChannel extends Channel<Lexer> { | ||
| @Override | ||
| public boolean consume(CodeReader code, Lexer output) { | ||
| char ch = (char) code.peek(); | ||
|
|
||
| if ((ch == '\\') && isNewLine(code.charAt(1))) { | ||
| // just throw away the backslash | ||
| code.pop(); | ||
| return true; | ||
| } | ||
|
|
||
| return false; | ||
| } | ||
|
|
||
| private static boolean isNewLine(char ch) { | ||
| return (ch == '\n') || (ch == '\r'); | ||
| } | ||
| } |
114 changes: 114 additions & 0 deletions
114
...objective-c-plugin/src/main/java/org/sonar/objectivec/lexer/CharacterLiteralsChannel.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /* | ||
| * SonarQube Objective-C (Community) Plugin | ||
| * Copyright (C) 2012-2016 OCTO Technology, Backelite, and contributors | ||
| * mailto:[email protected] | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 3 of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
| */ | ||
| package org.sonar.objectivec.lexer; | ||
|
|
||
| import com.sonar.sslr.api.Token; | ||
| import com.sonar.sslr.impl.Lexer; | ||
| import org.sonar.objectivec.api.ObjectiveCTokenType; | ||
| import org.sonar.sslr.channel.Channel; | ||
| import org.sonar.sslr.channel.CodeReader; | ||
|
|
||
| /** | ||
| * @author Sonar C++ Plugin (Community) authors | ||
| */ | ||
| public class CharacterLiteralsChannel extends Channel<Lexer> { | ||
| private static final char EOF = (char) -1; | ||
|
|
||
| private final StringBuilder sb = new StringBuilder(); | ||
|
|
||
| private int index; | ||
| private char ch; | ||
|
|
||
| @Override | ||
| public boolean consume(CodeReader code, Lexer output) { | ||
| int line = code.getLinePosition(); | ||
| int column = code.getColumnPosition(); | ||
| index = 0; | ||
| readPrefix(code); | ||
| if ((ch != '\'')) { | ||
| return false; | ||
| } | ||
| if (!read(code)) { | ||
| return false; | ||
| } | ||
| readUdSuffix(code); | ||
| for (int i = 0; i < index; i++) { | ||
| sb.append((char) code.pop()); | ||
| } | ||
| output.addToken(Token.builder() | ||
| .setLine(line) | ||
| .setColumn(column) | ||
| .setURI(output.getURI()) | ||
| .setValueAndOriginalValue(sb.toString()) | ||
| .setType(ObjectiveCTokenType.CHARACTER_LITERAL) | ||
| .build()); | ||
| sb.setLength(0); | ||
| return true; | ||
| } | ||
|
|
||
| private boolean read(CodeReader code) { | ||
| index++; | ||
| while (code.charAt(index) != ch) { | ||
| if (code.charAt(index) == EOF) { | ||
| return false; | ||
| } | ||
| if (code.charAt(index) == '\\') { | ||
| // escape | ||
| index++; | ||
| } | ||
| index++; | ||
| } | ||
| index++; | ||
| return true; | ||
| } | ||
|
|
||
| private void readPrefix(CodeReader code) { | ||
| ch = code.charAt(index); | ||
| if ((ch == 'u') || (ch == 'U') || ch == 'L') { | ||
| index++; | ||
| ch = code.charAt(index); | ||
| } | ||
| } | ||
|
|
||
| private void readUdSuffix(CodeReader code) { | ||
| for (int start_index = index, len = 0; ; index++) { | ||
| char c = code.charAt(index); | ||
| if (c == EOF) { | ||
| return; | ||
| } | ||
| if ((c >= 'a' && c <= 'z') | ||
| || (c >= 'A' && c <= 'Z') | ||
| || (c == '_')) { | ||
| len++; | ||
| } else { | ||
| if (c >= '0' && c <= '9') { | ||
| if (len > 0) { | ||
| len++; | ||
| } else { | ||
| index = start_index; | ||
| return; | ||
| } | ||
| } else { | ||
| return; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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