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Refactor SeasonEpisodeMatcher

This commit is contained in:
Reinhard Pointner 2016-10-07 21:19:49 +08:00
parent f6a473a816
commit 70a9fc7d0c
1 changed files with 99 additions and 119 deletions
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218
source/net/filebot/similarity/SeasonEpisodeMatcher.java
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@ -1,7 +1,9 @@
package net.filebot.similarity;
import static java.util.Arrays.*;
import static java.util.Collections.*;
import static java.util.regex.Pattern.*;
import static java.util.stream.Collectors.*;
import static net.filebot.util.FileUtilities.*;
import static net.filebot.util.RegularExpressions.*;
import static net.filebot.util.StringUtilities.*;
@ -9,13 +11,16 @@ import static net.filebot.util.StringUtilities.*;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.IntSummaryStatistics;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.function.Function;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.IntStream;
public class SeasonEpisodeMatcher {
@ -31,133 +36,54 @@ public class SeasonEpisodeMatcher {
SeasonEpisodePattern Season_00_Episode_00, S00E00SEQ, S00E00, SxE1_SxE2, SxE, Dot101, EP0, Num101_TOKEN, E1of2, Num101_SUBSTRING;
// match patterns like Season 01 Episode 02, ...
Season_00_Episode_00 = new SeasonEpisodePattern(null, "(?<!\\p{Alnum})(?i:season|series)[^\\p{Alnum}]{0,3}(\\d{1,4})[^\\p{Alnum}]{0,3}(?i:episode)[^\\p{Alnum}]{0,3}(\\d{1,4})[^\\p{Alnum}]{0,3}(?!\\p{Digit})");
Season_00_Episode_00 = new SeasonEpisodePattern(null, "(?<!\\p{Alnum})(?i:season|series)[^\\p{Alnum}]{0,3}(\\d{1,4})[^\\p{Alnum}]{0,3}(?i:episode)[^\\p{Alnum}]{0,3}((\\d{1,3}(\\D|$))+)[^\\p{Alnum}]{0,3}(?!\\p{Digit})", m -> {
return range(m.group(1), m.group(2));
});
// match patterns like S01E01-E05
S00E00SEQ = new SeasonEpisodePattern(null, "(?<!\\p{Alnum}|[-])[Ss](\\d{1,2}|\\d{4})[Ee](\\d{2,3})[-][Ee](\\d{2,3})(?!\\p{Alnum}|[-])") {
@Override
protected Collection<SxE> process(MatchResult match) {
List<SxE> seq = new ArrayList<SxE>();
int s = Integer.parseInt(match.group(1));
int e1 = Integer.parseInt(match.group(2));
int e2 = Integer.parseInt(match.group(3));
for (int i = e1; i <= e2; i++) {
seq.add(new SxE(s, i));
}
return seq;
}
};
S00E00SEQ = new SeasonEpisodePattern(null, "(?<!\\p{Alnum}|[-])[Ss](\\d{1,2}|\\d{4})[Ee](\\d{2,3})[-][Ee](\\d{2,3})(?!\\p{Alnum}|[-])", m -> {
return range(m.group(1), m.group(2), m.group(3));
});
// match patterns like S01E01, s01e02, ... [s01]_[e02], s01.e02, s01e02a, s2010e01 ... s01e01-02-03-04, [s01]_[e01-02-03-04] ...
S00E00 = new SeasonEpisodePattern(null, "(?<!\\p{Digit})[Ss](\\d{1,2}|\\d{4})[^\\p{Alnum}]{0,3}(?i:ep|e|p)(((?<=[^._ ])[Ee]?[Pp]?\\d{1,3}(\\D|$))+)") {
@Override
protected Collection<SxE> process(MatchResult match) {
List<SxE> matches = new ArrayList<SxE>(2);
int seasonNumber = Integer.parseInt(match.group(1));
for (int episodeNumber : matchIntegers(match.group(2))) {
matches.add(new SxE(seasonNumber, episodeNumber));
}
return matches;
}
};
S00E00 = new SeasonEpisodePattern(null, "(?<!\\p{Digit})[Ss](\\d{1,2}|\\d{4})[^\\p{Alnum}]{0,3}(?i:ep|e|p)(((?<=[^._ ])[Ee]?[Pp]?\\d{1,3}(\\D|$))+)", m -> {
return multi(m.group(1), m.group(2));
});
// match patterns 1x01-1x02, ...
SxE1_SxE2 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{1,2}x\\d{2}([-._ ]\\d{1,2}x\\d{2})+)(?!\\p{Digit})") {
@Override
protected Collection<SxE> process(MatchResult match) {
List<SxE> matches = new ArrayList<SxE>(2);
String[] numbers = NON_DIGIT.split(match.group(0));
for (int i = 0; i < numbers.length; i += 2) {
matches.add(new SxE(numbers[i], numbers[i + 1])); // SxE-SxE-SxE
}
return matches;
}
};
SxE1_SxE2 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{1,2}x\\d{2}([-._ ]\\d{1,2}x\\d{2})+)(?!\\p{Digit})", m -> {
return pairs(m.group());
});
// match patterns like 1x01, 1.02, ..., 1x01a, 10x01, 10.02, ... 1x01-02-03-04, 1x01x02x03x04 ...
SxE = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{1,2})[xe](((?<=[^._ ])\\d{2,3}(\\D|$))+)") {
@Override
protected Collection<SxE> process(MatchResult match) {
List<SxE> matches = new ArrayList<SxE>(2);
int seasonNumber = Integer.parseInt(match.group(1));
for (int episodeNumber : matchIntegers(match.group(2))) {
matches.add(new SxE(seasonNumber, episodeNumber));
}
return matches;
}
};
SxE = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{1,2})[xe](((?<=[^._ ])\\d{2,3}(\\D|$))+)", m -> {
return multi(m.group(1), m.group(2));
});
// match patterns 1.02, ..., 10.02, ...
Dot101 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum}|\\d{4}[.])(\\d{1,2})[.](((?<=[^._ ])\\d{2}(\\D|$))+)") {
@Override
protected Collection<SxE> process(MatchResult match) {
List<SxE> matches = new ArrayList<SxE>(2);
int seasonNumber = Integer.parseInt(match.group(1));
for (int episodeNumber : matchIntegers(match.group(2))) {
matches.add(new SxE(seasonNumber, episodeNumber));
}
return matches;
}
};
Dot101 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum}|\\d{4}[.])(\\d{1,2})[.](((?<=[^._ ])\\d{2}(\\D|$))+)", m -> {
return multi(m.group(1), m.group(2));
});
// match patterns like ep1, ep.1, ...
EP0 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{2}|\\d{4})?[^\\p{Alnum}]{0,3}(?i:e|ep|episode|p|part)[^\\p{Alnum}]{0,3}(\\d{1,3})(?!\\p{Digit})") {
@Override
protected Collection<SxE> process(MatchResult match) {
// regex doesn't match season
return singleton(new SxE(match.group(1), match.group(2)));
}
};
EP0 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{2}|\\d{4})?[^\\p{Alnum}]{0,3}(?i:e|ep|episode|p|part)[^\\p{Alnum}]{0,3}(\\d{1,3})(?!\\p{Digit})", m -> {
return single(m.group(1), m.group(2));
});
// match patterns like 01, 102, 1003, 10102 (enclosed in separators)
Num101_TOKEN = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})([0-2]?\\d?)(\\d{2})(\\d{2})?(?!\\p{Alnum})") {
Num101_TOKEN = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})([0-2]?\\d?)(\\d{2})(\\d{2})?(?!\\p{Alnum})", m -> {
return numbers(m.group(1), IntStream.rangeClosed(2, m.groupCount()).mapToObj(m::group).filter(Objects::nonNull).toArray(String[]::new));
});
@Override
protected Collection<SxE> process(MatchResult match) {
Set<SxE> sxe = new LinkedHashSet<SxE>(2);
// interpret match as season and episode, but ignore 001 => 0x01 Season 0 matches
if (match.group(1).length() > 0 && Integer.parseInt(match.group(1)) > 0) {
for (int i = 2; i <= match.groupCount(); i++) {
if (match.group(i) != null) {
sxe.add(new SxE(match.group(1), match.group(i)));
}
}
}
// interpret match both ways, as SxE match as well as episode number only match if it's not an double episode
if (sxe.size() < 2) {
sxe.add(new SxE(null, match.group(1) + match.group(2)));
}
// return both matches, unless they are one and the same
return sxe;
}
};
E1of2 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{1,2})[^._ ]?(?i:of)[^._ ]?(\\d{1,2})(?!\\p{Digit})") {
@Override
protected Collection<SxE> process(MatchResult match) {
// regex doesn't match season
return singleton(new SxE(null, match.group(1)));
}
};
// match patterns like "1 of 2" as Episode 1
E1of2 = new SeasonEpisodePattern(sanity, "(?<!\\p{Alnum})(\\d{1,2})[^._ ]?(?i:of)[^._ ]?(\\d{1,2})(?!\\p{Digit})", m -> {
return single(null, m.group(1));
});
// (last-resort) match patterns like 101, 102 (and greedily just grab the first)
Num101_SUBSTRING = new SeasonEpisodePattern(STRICT_SANITY, "(?<!\\p{Digit})(\\d{1})(\\d{2})(?!\\p{Digit})(.*)") {
@Override
protected Collection<SxE> process(MatchResult match) {
return singleton(new SxE(match.group(1), match.group(2)));
}
};
Num101_SUBSTRING = new SeasonEpisodePattern(STRICT_SANITY, "(?<!\\p{Digit})(\\d{1})(\\d{2})(?!\\p{Digit})(.*)", m -> {
return single(m.group(1), m.group(2));
});
// only use S00E00 and SxE pattern in strict mode
if (strict) {
@ -170,6 +96,57 @@ public class SeasonEpisodeMatcher {
seasonPattern = compile("Season[-._ ]?(\\d{1,2})", CASE_INSENSITIVE | UNICODE_CHARACTER_CLASS);
}
protected List<SxE> single(String season, String episode) {
return singletonList(new SxE(season, episode));
}
protected List<SxE> multi(String season, String... episodes) {
int s = Integer.parseInt(season);
return stream(episodes).flatMap(e -> matchIntegers(e).stream()).map(e -> new SxE(s, e)).collect(toList());
}
protected List<SxE> range(String season, String... episodes) {
IntSummaryStatistics stats = stream(episodes).flatMap(s -> matchIntegers(s).stream()).mapToInt(i -> i).summaryStatistics();
int s = Integer.parseInt(season);
return IntStream.rangeClosed(stats.getMin(), stats.getMax()).mapToObj(e -> new SxE(s, e)).collect(toList());
}
protected List<SxE> pairs(String text) {
List<SxE> matches = new ArrayList<SxE>(2);
// SxE-SxE-SxE
String[] numbers = NON_DIGIT.split(text);
for (int i = 0; i < numbers.length; i += 2) {
matches.add(new SxE(numbers[i], numbers[i + 1]));
}
return matches;
}
protected List<SxE> numbers(String head, String... tail) {
List<SxE> matches = new ArrayList<SxE>(2);
// interpret match as season and episode, but ignore 001 => 0x01 Season 0 matches
for (String t : tail) {
SxE sxe = new SxE(head, t);
if (sxe.season > 0) {
matches.add(sxe);
}
}
// interpret match both ways, as SxE match as well as episode number only match if it's not an double episode
if (tail.length == 1) {
SxE absolute = new SxE(null, head + tail[0]);
if (!matches.contains(absolute)) {
matches.add(absolute);
}
}
// return both matches, unless they are one and the same
return matches;
}
/**
* Try to get season and episode numbers for the given string.
*
@ -319,11 +296,18 @@ public class SeasonEpisodeMatcher {
public static class SeasonEpisodePattern implements SeasonEpisodeParser {
protected final Pattern pattern;
protected final SeasonEpisodeFilter sanity;
protected Pattern pattern;
protected Function<MatchResult, List<SxE>> process;
protected SeasonEpisodeFilter sanity;
public SeasonEpisodePattern(SeasonEpisodeFilter sanity, String pattern) {
this(sanity, pattern, m -> singletonList(new SxE(m.group(1), m.group(2))));
}
public SeasonEpisodePattern(SeasonEpisodeFilter sanity, String pattern, Function<MatchResult, List<SxE>> process) {
this.pattern = Pattern.compile(pattern);
this.process = process;
this.sanity = sanity;
}
@ -331,10 +315,6 @@ public class SeasonEpisodeMatcher {
return pattern.matcher(name);
}
protected Collection<SxE> process(MatchResult match) {
return singleton(new SxE(match.group(1), match.group(2)));
}
@Override
public List<SxE> match(CharSequence name) {
// name will probably contain no more than two matches
@ -343,7 +323,7 @@ public class SeasonEpisodeMatcher {
Matcher matcher = matcher(name);
while (matcher.find()) {
for (SxE value : process(matcher)) {
for (SxE value : process.apply(matcher)) {
if (sanity == null || sanity.filter(value)) {
matches.add(value);
}
@ -358,7 +338,7 @@ public class SeasonEpisodeMatcher {
Matcher matcher = matcher(name).region(fromIndex, name.length());
while (matcher.find()) {
for (SxE value : process(matcher)) {
for (SxE value : process.apply(matcher)) {
if (sanity == null || sanity.filter(value)) {
return matcher.start();
}