Extract episode number from anime file name (In progress, see % accuracy above)
npm install aniep --save
const aniep = require("aniep");
// leading zero is removed, returning a Number type
aniep("[Leopard-Raws] Yakusoku no Neverland - 04 RAW (THK 1280x720 x264 AAC).mp4"); // return 4
// floating point is supported
aniep("[Leopard-Raws] Youjo Senki - 06.5 RAW (ATX 1280x720 x264 AAC).mp4"); // return 6.5
// when it cannot find any episode number, it returns null
aniep("[Leopard-Raws] Sora to Umi no Aida Special (SUN 1280x720 x264 AAC).mp4"); // return null
// similarily, OVA also returns null
aniep(
"[Ohys-Raws] Boku no Kanojo ga Majime Sugiru Shobitch na Ken (2018) - OVA (BD 1280x720 x264 AAC).mp4"
); // return null
// however, OVA with episode number would still return a Number
aniep("[Ohys-Raws] Amanchu! - 13 OVA (AT-X 1280x720 x264 AAC).mp4"); // return 13
// episode preview return episode Number
aniep("[Ohys-Raws] Tate no Yuusha no Nariagari - 01 Preview (AT-X 1280x720 x264 AAC).mp4"); // return 1
// for joined episode, it returns an array of Number: the first and the last episode
aniep("[Ohys-Raws] Idolish Seven - 01-02 (MX 1280x720 x264 AAC).mp4"); // return [1, 2]
// in case there are multiple possible episode number, it returns a string of episodes, using | as separator
aniep("[Ohys-Raws] High School DxD Hero - 11(10) (AT-X 1280x720 x264 AAC).mp4"); // return "10|11"import aniep from "aniep";
// leading zero is removed, returning a Number type
aniep("[Leopard-Raws] Yakusoku no Neverland - 04 RAW (THK 1280x720 x264 AAC).mp4"); // return 4
// ...special cases to be confirmed
2 B Gata H Kei - Vol.06 CM_02 (BD 1280x720 AVC AAC).mp4
null B Gata H Kei - Vol.02 Menu (BD 1280x720 AVC AAC).mp4
1 [CASO][Tentai_Senshi_Sunred][BIG5][Vol05-SP1][DVDRIP][x264_AAC].mp4
2 [CASO][Tentai_Senshi_Sunred][BIG5][Vol05-SP2][DVDRIP][x264_AAC].mp4
9.5|21.5 [Dymy][Berserk 2][09.5(21.5)][BIG5][1280X720].mp4
12 [FLsnow][AIR][Ep12_Creditless_ED][DVDrip][x264_AAC].mp4
1|25 [HKACG][Lupin Sansei 2015][25_OVA1][BIG5_JP][x264_AAC][720p].mp4
06,07|226,227 [SOSG&52wy][Naruto_Shippuuden][226-227(06-07)][BIG5][x264_AAC].mp4
3|3.75 [諸神字幕組][進擊的巨人][Shingeki no Kyojin][OAD3][#3.75][720P][中日雙語字幕][MP4].mp4
4|0.5 [諸神字幕組][進擊的巨人][Shingeki no Kyojin][OAD4][#0.5A][720P][中日雙語字幕][MP4].mp4
5|0.5 [諸神字幕組][進擊的巨人][Shingeki no Kyojin][OAD5][#0.5B][576P][中日雙語字幕][MP4].mp4
To test the program's accuracy:
npm test
Dataset is defined in test/answer.txt, with over 100,000 file names found from Chinese anime websites. The text file is a tab-separated list of testcases. First column is expected answer, second column is input file name.
You can test your implementation (defined in src/index.js) against the dataset to see how well your episode number extraction function performs.
