1 files changed, 91 insertions, 0 deletions
diff --git a/JLanguageTool/src/java/de/danielnaber/languagetool/rules/WhitespaceRule.java b/JLanguageTool/src/java/de/danielnaber/languagetool/rules/WhitespaceRule.java
new file mode 100644
index 0000000..61f1ca6
--- /dev/null
+++ b/JLanguageTool/src/java/de/danielnaber/languagetool/rules/WhitespaceRule.java
@@ -0,0 +1,91 @@
+/* LanguageTool, a natural language style checker 
+ * Copyright (C) 2005 Daniel Naber (http://www.danielnaber.de)
+ * 
+ * This library 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 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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 library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+package de.danielnaber.languagetool.rules;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.ResourceBundle;
+
+import de.danielnaber.languagetool.AnalyzedSentence;
+import de.danielnaber.languagetool.AnalyzedTokenReadings;
+import de.danielnaber.languagetool.Language;
+
+/**
+ * Check if there is duplicated whitespace in a sentence.
+ * Considers two spaces as incorrect, and proposes a single space instead.
+ *    
+ * @author Marcin Miłkowski
+ */
+
+public class WhitespaceRule extends Rule {
+
+  public WhitespaceRule(final ResourceBundle messages, final Language language) {
+    super(messages);
+    super.setCategory(new Category(messages.getString("category_misc")));
+  }
+
+  @Override
+  public final String getId() {
+    return "WHITESPACE_RULE";
+  }
+
+  @Override
+  public final String getDescription() {
+    return messages.getString("desc_whitespacerepetition");
+  }
+
+  @Override
+  public RuleMatch[] match(final AnalyzedSentence text) {
+    final List<RuleMatch> ruleMatches = new ArrayList<RuleMatch>();
+    final AnalyzedTokenReadings[] tokens = text.getTokens();
+    boolean prevWhite = false;
+    int prevLen = 0;
+    int prevPos = 0;
+    //note: we start from token 1
+    //token no. 0 is guaranteed to be SENT_START
+    int i = 1;
+    while (i < tokens.length) {
+      if (tokens[i].isWhitespace() && prevWhite && !tokens[i -1].isLinebreak()) {
+        final int pos = tokens[i -1].getStartPos();
+        while (i < tokens.length && tokens[i].isWhitespace()) {
+          prevLen += tokens[i].getToken().length();
+          i++;
+        }
+        final RuleMatch ruleMatch = new RuleMatch(this, prevPos, pos + prevLen, messages
+            .getString("whitespace_repetition"));
+        ruleMatch.setSuggestedReplacement(" ");
+        ruleMatches.add(ruleMatch);
+      }
+      if (i < tokens.length) {
+        prevWhite = tokens[i].isWhitespace();
+        prevLen = tokens[i].getToken().length();
+        prevPos = tokens[i].getStartPos();
+        i++;
+      }
+    }
+    return toRuleMatchArray(ruleMatches);
+  }
+
+  @Override
+  public void reset() {
+    // nothing
+  }
+
+}