X-Git-Url: http://gitweb.fperrin.net/?a=blobdiff_plain;f=src%2Fcom%2Fhughes%2Fandroid%2Fdictionary%2Fparser%2FWikiTokenizer.java;h=47aac9488de54449f81399f33b29f3e264f55ac7;hb=794c2989d4ff4c456c9aa1066150c6d51a5aae84;hp=ad14bc0c1826a2ab27a139909e6700df418f7de1;hpb=7573784eea75700436bb900861b93a6d53210fc8;p=DictionaryPC.git

diff --git a/src/com/hughes/android/dictionary/parser/WikiTokenizer.java b/src/com/hughes/android/dictionary/parser/WikiTokenizer.java
index ad14bc0..47aac94 100644
--- a/src/com/hughes/android/dictionary/parser/WikiTokenizer.java
+++ b/src/com/hughes/android/dictionary/parser/WikiTokenizer.java
@@ -22,7 +22,19 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public final class WikiTokenizer {
-
+  
+  public static interface Callback {
+    void onPlainText(final String text);
+    void onMarkup(WikiTokenizer wikiTokenizer);
+    void onWikiLink(WikiTokenizer wikiTokenizer);
+    void onNewline(WikiTokenizer wikiTokenizer);
+    void onFunction(final WikiTokenizer tokenizer, String functionName, List<String> functionPositionArgs,
+        Map<String, String> functionNamedArgs);
+    void onHeading(WikiTokenizer wikiTokenizer);
+    void onListItem(WikiTokenizer wikiTokenizer);
+    void onComment(WikiTokenizer wikiTokenizer);
+  }
+  
   //private static final Pattern wikiTokenEvent = Pattern.compile("($)", Pattern.MULTILINE);
   private static final Pattern wikiTokenEvent = Pattern.compile("(" +
   		"\\{\\{|\\}\\}|" +
@@ -70,7 +82,7 @@ public final class WikiTokenizer {
   public WikiTokenizer(final String wikiText, final boolean isNewline) {
     this.wikiText = wikiText;
     this.matcher = wikiTokenEvent.matcher(wikiText);
-    justReturnedNewline = false;
+    justReturnedNewline = isNewline;
   }
 
   private void clear() {
@@ -92,6 +104,44 @@ public final class WikiTokenizer {
     positionArgs.clear();
     namedArgs.clear();
   }
+
+  private static final Pattern POSSIBLE_WIKI_TEXT = Pattern.compile(
+      "\\{\\{|" +
+      "\\[\\[|" +
+      "<!--|" +
+      "''|" +
+      "[\n]"
+      );
+
+  public static void dispatch(final String wikiText, final boolean isNewline, final Callback callback) {
+    // Optimization...
+    if (!POSSIBLE_WIKI_TEXT.matcher(wikiText).find()) {
+      callback.onPlainText(wikiText);
+    } else {
+      final WikiTokenizer tokenizer = new WikiTokenizer(wikiText, isNewline);
+      while (tokenizer.nextToken() != null) {
+        if (tokenizer.isPlainText()) {
+          callback.onPlainText(tokenizer.token());
+        } else if (tokenizer.isMarkup()) {
+          callback.onMarkup(tokenizer);
+        } else if (tokenizer.isWikiLink) {
+          callback.onWikiLink(tokenizer);
+        } else if (tokenizer.isNewline()) {
+          callback.onNewline(tokenizer);
+        } else if (tokenizer.isFunction()) {
+          callback.onFunction(tokenizer, tokenizer.functionName(), tokenizer.functionPositionArgs(), tokenizer.functionNamedArgs());
+        } else if (tokenizer.isHeading()) {
+          callback.onHeading(tokenizer);
+        } else if (tokenizer.isListItem()) {
+          callback.onListItem(tokenizer);
+        } else if (tokenizer.isComment()) {
+          callback.onComment(tokenizer);
+        } else {
+          throw new IllegalStateException("Unknown wiki state.");
+        }
+      }
+    }
+  }
   
   public boolean isNewline() {
     return justReturnedNewline;
@@ -173,6 +223,7 @@ public final class WikiTokenizer {
     if (lastUnescapedPipePos != -1) {
       return wikiText.substring(lastUnescapedPipePos + 1, end - 2);
     }
+    assert start + 2 < wikiText.length() && end >= 2: wikiText;
     return wikiText.substring(start + 2, end - 2);
   }
 
@@ -337,7 +388,7 @@ public final class WikiTokenizer {
   
   public String token() {
     final String token = wikiText.substring(start, end);
-    assert token.equals("\n") || !token.endsWith("\n") : token;
+    assert token.equals("\n") || !token.endsWith("\n") : "token='" + token + "'";
     return token;
   }
   
@@ -347,6 +398,7 @@ public final class WikiTokenizer {
     final boolean insideFunction = toFind.equals("}}");
     
     int end = start;
+    int firstNewline = -1;
     while (end < wikiText.length()) {
       if (matcher.find(end)) {
         final String matchText = matcher.group();
@@ -355,6 +407,9 @@ public final class WikiTokenizer {
         assert matcher.end() > end || matchText.length() == 0: "Group=" + matcher.group();
         if (matchText.length() == 0) {
           assert matchStart == wikiText.length() || wikiText.charAt(matchStart) == '\n';
+          if (firstNewline == -1) {
+            firstNewline = matcher.end();
+          }
           if (tokenStack.isEmpty() && toFind.equals("\n")) {
             return matchStart;
           }
@@ -413,6 +468,14 @@ public final class WikiTokenizer {
       // Inside the while loop.  Just go forward.
       end = Math.max(end, matcher.end());
     }
+    if (toFind.equals("\n") && tokenStack.isEmpty()) {
+      // We were looking for the end, we got it.
+      return end;
+    }
+    if (firstNewline != -1) {
+      errors.add("Couldn't find: " + toFind + ", "+ wikiText.substring(start));
+      return firstNewline;
+    }
     return end;
   }
 
@@ -445,8 +508,8 @@ public final class WikiTokenizer {
     return s.length();
   }
 
-  public static String toPlainText(String sense) {
-    final WikiTokenizer wikiTokenizer = new WikiTokenizer(sense);
+  public static String toPlainText(final String wikiText) {
+    final WikiTokenizer wikiTokenizer = new WikiTokenizer(wikiText);
     final StringBuilder builder = new StringBuilder();
     while (wikiTokenizer.nextToken() != null) {
       if (wikiTokenizer.isPlainText()) {
@@ -462,4 +525,16 @@ public final class WikiTokenizer {
     return builder.toString();
   }
 
+  public static StringBuilder appendFunction(final StringBuilder builder, final String name, List<String> args,
+      final Map<String, String> namedArgs) {
+    builder.append(name);
+    for (final String arg : args) {
+      builder.append("|").append(arg);
+    }
+    for (final Map.Entry<String, String> entry : namedArgs.entrySet()) {
+      builder.append("|").append(entry.getKey()).append("=").append(entry.getValue());
+    }
+    return builder;
+  }
+
 }