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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,179 @@ | ||
| import { ElementCategory } from '../element'; | ||
| import { Token, TokenCategory } from '../token'; | ||
| import { isNumericString, trim } from '../utils'; | ||
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| import { ParserContext, getResult, hasResult, setResult } from './context'; | ||
| import { isDigit, isValidEpisodeNumber } from './number'; | ||
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| export function matchEpisodePatterns(context: ParserContext, word: string, token: Token) { | ||
| if (isNumericString(word)) return false; | ||
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| word = trim(word, [' ', '-']); | ||
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| const numericFront = isDigit(word[0]); | ||
| const numericBack = isDigit(word[word.length - 1]); | ||
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| if (numericFront && numericBack) { | ||
| // e.g. "01v2" | ||
| if (matchSingleEpisodePattern(context, word, token)) { | ||
| return true; | ||
| } | ||
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| // e.g. "01-02", "03-05v2" | ||
| if (matchMultiEpisodePattern(context, word, token)) { | ||
| return true; | ||
| } | ||
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| // e.g. "07.5" | ||
| if (matchFractionalEpisodePattern(context, word, token)) { | ||
| return true; | ||
| } | ||
| } | ||
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| if (numericBack) { | ||
| // e.g. "2x01", "S01E03", "S01-02xE001-150" | ||
| if (matchSeasonAndEpisodePattern(context, word, token)) { | ||
| return true; | ||
| } | ||
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| // e.g. "#01", "#02-03v2" | ||
| if (matchNumberSignPattern(context, word, token)) { | ||
| return true; | ||
| } | ||
| } | ||
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| if (!numericFront) { | ||
| // TODO | ||
| } | ||
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| if (numericFront) { | ||
| // TODO | ||
| } | ||
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| return true; | ||
| } | ||
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| /** | ||
| * Match a single episode pattern. e.g. "01v2". | ||
| */ | ||
| function matchSingleEpisodePattern(context: ParserContext, word: string, token: Token) { | ||
| const RE = /^(\d{1,3})[vV](\d)$/; | ||
| const match = RE.exec(word); | ||
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| if (match) { | ||
| setEpisodeNumber(context, match[1], token, false); | ||
| setResult(context, ElementCategory.ReleaseVersion, match[2]); | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
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| /** | ||
| * Match a multi episode pattern. e.g. "01-02", "03-05v2". | ||
| */ | ||
| function matchMultiEpisodePattern(context: ParserContext, word: string, token: Token) { | ||
| const RE = /^(\d{1,3})(?:[vV](\d))?[-~&+](\d{1,3})(?:[vV](\d))?$/; | ||
| const match = RE.exec(word); | ||
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| if (!match) return false; | ||
| const lowerBound = match[1]; | ||
| const upperBound = match[3]; | ||
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| // Avoid matching expressions such as "009-1" or "5-2" | ||
| if (+lowerBound >= +upperBound) return false; | ||
| if (!setEpisodeNumber(context, lowerBound, token, true)) { | ||
| return false; | ||
| } | ||
| setEpisodeNumber(context, upperBound, token, true); | ||
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| if (match[2]) { | ||
| setResult(context, ElementCategory.ReleaseVersion, match[2]); | ||
| } | ||
| if (match[4]) { | ||
| setResult(context, ElementCategory.ReleaseVersion, match[4]); | ||
| } | ||
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| return true; | ||
| } | ||
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| /** | ||
| * Match fractional episodes. e.g. "07.5" | ||
| */ | ||
| function matchFractionalEpisodePattern(context: ParserContext, word: string, token: Token) { | ||
| const RE = /^\d+\.5$/; | ||
| const match = RE.exec(word); | ||
| return match && setEpisodeNumber(context, word, token, true); | ||
| } | ||
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| /** | ||
| * Match season and episode patterns. e.g. "2x01", "S01E03", "S01-02xE001-150". | ||
| */ | ||
| function matchSeasonAndEpisodePattern(context: ParserContext, word: string, token: Token) { | ||
| const RE = /^S?(\d{1,2})(?:-S?(\d{1,2}))?(?:x|[ ._-x]?E)(\d{1,3})(?:-E?(\d{1,3}))?$/; | ||
| const match = RE.exec(word); | ||
| if (!match) return false; | ||
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| setResult(context, ElementCategory.AnimeSeason, match[1]); | ||
| if (match[2]) { | ||
| setResult(context, ElementCategory.AnimeSeason, match[2]); | ||
| } | ||
| setEpisodeNumber(context, match[3], token, false); | ||
| if (match[4]) { | ||
| setEpisodeNumber(context, match[4], token, false); | ||
| } | ||
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| return true; | ||
| } | ||
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| /** | ||
| * Match episodes with number signs. e.g. "#01", "#02-03v2" | ||
| */ | ||
| function matchNumberSignPattern(context: ParserContext, word: string, token: Token) { | ||
| if (word[0] !== '#') word = ''; | ||
| const RE = /^#(\d{1,3})(?:[-~&+](\d{1,3}))?(?:[vV](\d))?$/; | ||
| const match = RE.exec(word); | ||
| if (!match) return false; | ||
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| if (!setEpisodeNumber(context, match[1], token, true)) return false; | ||
| if (match[2]) { | ||
| setEpisodeNumber(context, match[2], token, false); | ||
| } | ||
| if (match[3]) { | ||
| setResult(context, ElementCategory.ReleaseVersion, match[3]); | ||
| } | ||
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| return true; | ||
| } | ||
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| export function setEpisodeNumber( | ||
| context: ParserContext, | ||
| num: string, | ||
| token: Token, | ||
| validate: boolean | ||
| ) { | ||
| if (validate && !isValidEpisodeNumber(num)) return false; | ||
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| token.category = TokenCategory.Identifier; | ||
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| if (context.isEpisodeKeywordsFound && hasResult(context, ElementCategory.EpisodeNumber)) { | ||
| const oldEp = getResult(context, ElementCategory.EpisodeNumber)!; | ||
| const diff = +num - +oldEp; | ||
| if (diff > 0) { | ||
| setResult(context, ElementCategory.EpisodeNumberAlt, num); | ||
| return true; | ||
| } else if (diff < 0) { | ||
| // Move old episode number to alt number | ||
| // Then, reset the episode number | ||
| setResult(context, ElementCategory.EpisodeNumber, num); | ||
| setResult(context, ElementCategory.EpisodeNumberAlt, oldEp); | ||
| return true; | ||
| } else { | ||
| // No need to add the same number twice | ||
| return false; | ||
| } | ||
| } else { | ||
| setResult(context, ElementCategory.EpisodeNumber, num); | ||
| return true; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| import { Token } from '../token'; | ||
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| import { ParserContext } from './context'; | ||
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| export function matchVolumePatterns(context: ParserContext, word: string, token: Token) { | ||
| return true; | ||
| } | ||
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| export function setVolumeNumber( | ||
| context: ParserContext, | ||
| word: string, | ||
| token: Token, | ||
| validate: boolean | ||
| ) { | ||
| return true; | ||
| } |