Rename project

2016-01-15 15:18:19 +01:00
parent 1508bf42fb
commit 70f4c7fcc3
167 changed files with 647 additions and 654 deletions
@@ -0,0 +1,127 @@
+package eu.kanade.tachiyomi.util;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import eu.kanade.tachiyomi.data.database.models.Chapter;
+import eu.kanade.tachiyomi.data.database.models.Manga;
+
+public class ChapterRecognition {
+
+    private static final Pattern p1 = Pattern.compile("ch[^0-9]?\\s*(\\d+[\\.,]?\\d*)");
+    private static final Pattern p2 = Pattern.compile("(\\d+[\\.,]?\\d*)");
+    private static final Pattern p3 = Pattern.compile("(\\d+[\\.,]?\\d*\\s*:)");
+
+    private static final Pattern pUnwanted =
+            Pattern.compile("\\b(v|ver|vol|version|volume)\\.?\\s*\\d+\\b");
+
+    public static void parseChapterNumber(Chapter chapter, Manga manga) {
+        if (chapter.chapter_number != -1)
+            return;
+
+        String name = chapter.name.toLowerCase();
+        Matcher matcher;
+
+        // Safest option, the chapter has a token prepended
+        matcher = p1.matcher(name);
+        if (matcher.find()) {
+            chapter.chapter_number = Float.parseFloat(matcher.group(1));
+            return;
+        }
+
+        // Remove anything related to the volume or version
+        name = pUnwanted.matcher(name).replaceAll("");
+
+        List<Float> occurrences;
+
+        // If there's only one number, use it
+        matcher = p2.matcher(name);
+        occurrences = getAllOccurrences(matcher);
+        if (occurrences.size() == 1) {
+            chapter.chapter_number =  occurrences.get(0);
+            return;
+        }
+
+        // If it has a colon, the chapter number should be that one
+        matcher = p3.matcher(name);
+        occurrences = getAllOccurrences(matcher);
+        if (occurrences.size() == 1) {
+            chapter.chapter_number =  occurrences.get(0);
+            return;
+        }
+
+        // This can lead to issues if two numbers are separated by an space
+        name = name.replaceAll("\\s+", "");
+
+        // Try to remove the manga name from the chapter, and try again
+        String mangaName = replaceIrrelevantCharacters(manga.title);
+        String nameWithoutManga = difference(mangaName, name);
+        if (!nameWithoutManga.isEmpty()) {
+            matcher = p2.matcher(nameWithoutManga);
+            occurrences = getAllOccurrences(matcher);
+            if (occurrences.size() == 1) {
+                chapter.chapter_number =  occurrences.get(0);
+                return;
+            }
+        }
+
+        // TODO more checks (maybe levenshtein?)
+
+    }
+
+    public static List<Float> getAllOccurrences(Matcher matcher) {
+        List<Float> occurences = new ArrayList<>();
+        while (matcher.find()) {
+            // Match again to get only numbers from the captured text
+            String text = matcher.group();
+            Matcher m = p2.matcher(text);
+            if (m.find()) {
+                try {
+                    Float value = Float.parseFloat(m.group(1));
+                    if (!occurences.contains(value)) {
+                        occurences.add(value);
+                    }
+                } catch (NumberFormatException e) { /* Do nothing */ }
+            }
+        }
+        return occurences;
+    }
+
+    public static String replaceIrrelevantCharacters(String str) {
+        return str.replaceAll("\\s+", "").toLowerCase();
+    }
+
+    public static String difference(String str1, String str2) {
+        if (str1 == null) {
+            return str2;
+        }
+        if (str2 == null) {
+            return str1;
+        }
+        int at = indexOfDifference(str1, str2);
+        if (at == -1) {
+            return "";
+        }
+        return str2.substring(at);
+    }
+    public static int indexOfDifference(String str1, String str2) {
+        if (str1 == str2) {
+            return -1;
+        }
+        if (str1 == null || str2 == null) {
+            return 0;
+        }
+        int i;
+        for (i = 0; i < str1.length() && i < str2.length(); ++i) {
+            if (str1.charAt(i) != str2.charAt(i)) {
+                break;
+            }
+        }
+        if (i < str2.length() || i < str1.length()) {
+            return i;
+        }
+        return -1;
+    }
+}