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Add ESLint and lint a bunch

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Vanilagy
2024-12-01 17:33:54 +01:00
parent 3ae891842f
commit 6730e41c07
25 changed files with 3668 additions and 1584 deletions
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src/subtitles.ts
+42 -42
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@@ -1,24 +1,24 @@
export type SubtitleCue = {
timestamp: number, // in seconds
duration: number, // in seconds
text: string,
identifier?: string,
settings?: string,
notes?: string
timestamp: number; // in seconds
duration: number; // in seconds
text: string;
identifier?: string;
settings?: string;
notes?: string;
};
export type SubtitleConfig = {
description: string
description: string;
};
export type SubtitleMetadata = {
config?: SubtitleConfig
config?: SubtitleConfig;
};
type SubtitleParserOptions = {
codec: 'webvtt',
output: (cue: SubtitleCue, metadata: SubtitleMetadata) => unknown,
error: (error: Error) => unknown
codec: 'webvtt';
output: (cue: SubtitleCue, metadata: SubtitleMetadata) => unknown;
error: (error: Error) => unknown;
};
const cueBlockHeaderRegex = /(?:(.+?)\n)?((?:\d{2}:)?\d{2}:\d{2}.\d{3})\s+-->\s+((?:\d{2}:)?\d{2}:\d{2}.\d{3})/g;
@@ -42,16 +42,16 @@ export class SubtitleParser {
if (!this.preambleText) {
if (!preambleStartRegex.test(text)) {
let error = new Error('WebVTT preamble incorrect.');
const error = new Error('WebVTT preamble incorrect.');
this.options.error(error);
throw error;
}
match = cueBlockHeaderRegex.exec(text);
let preamble = text.slice(0, match?.index ?? text.length).trimEnd();
const preamble = text.slice(0, match?.index ?? text.length).trimEnd();
if (!preamble) {
let error = new Error('No WebVTT preamble provided.');
const error = new Error('No WebVTT preamble provided.');
this.options.error(error);
throw error;
}
@@ -64,37 +64,37 @@ export class SubtitleParser {
}
}
while (match = cueBlockHeaderRegex.exec(text)) {
let notes = text.slice(0, match.index);
let cueIdentifier = match[1];
let matchEnd = match.index! + match[0].length;
let bodyStart = text.indexOf('\n', matchEnd) + 1;
let cueSettings = text.slice(matchEnd, bodyStart).trim();
while ((match = cueBlockHeaderRegex.exec(text))) {
const notes = text.slice(0, match.index);
const cueIdentifier = match[1];
const matchEnd = match.index! + match[0].length;
const bodyStart = text.indexOf('\n', matchEnd) + 1;
const cueSettings = text.slice(matchEnd, bodyStart).trim();
let bodyEnd = text.indexOf('\n\n', matchEnd);
if (bodyEnd === -1) bodyEnd = text.length;
let startTime = parseSubtitleTimestamp(match[2]!);
let endTime = parseSubtitleTimestamp(match[3]!);
let duration = endTime - startTime;
const startTime = parseSubtitleTimestamp(match[2]!);
const endTime = parseSubtitleTimestamp(match[3]!);
const duration = endTime - startTime;
let body = text.slice(bodyStart, bodyEnd).trim();
const body = text.slice(bodyStart, bodyEnd).trim();
text = text.slice(bodyEnd).trimStart();
cueBlockHeaderRegex.lastIndex = 0;
let cue: SubtitleCue = {
const cue: SubtitleCue = {
timestamp: startTime / 1000,
duration: duration / 1000,
text: body,
identifier: cueIdentifier,
settings: cueSettings,
notes
notes,
};
let meta: SubtitleMetadata = {};
const meta: SubtitleMetadata = {};
if (!this.preambleEmitted) {
meta.config = {
description: this.preambleText
description: this.preambleText,
};
this.preambleEmitted = true;
}
@@ -106,23 +106,23 @@ export class SubtitleParser {
const timestampRegex = /(?:(\d{2}):)?(\d{2}):(\d{2}).(\d{3})/;
export const parseSubtitleTimestamp = (string: string) => {
let match = timestampRegex.exec(string);
const match = timestampRegex.exec(string);
if (!match) throw new Error('Expected match.');
return 60 * 60 * 1000 * Number(match[1] || '0') +
60 * 1000 * Number(match[2]) +
1000 * Number(match[3]) +
Number(match[4]);
return 60 * 60 * 1000 * Number(match[1] || '0')
+ 60 * 1000 * Number(match[2])
+ 1000 * Number(match[3])
+ Number(match[4]);
};
export const formatSubtitleTimestamp = (timestamp: number) => {
let hours = Math.floor(timestamp / (60 * 60 * 1000));
let minutes = Math.floor((timestamp % (60 * 60 * 1000)) / (60 * 1000));
let seconds = Math.floor((timestamp % (60 * 1000)) / 1000);
let milliseconds = timestamp % 1000;
const hours = Math.floor(timestamp / (60 * 60 * 1000));
const minutes = Math.floor((timestamp % (60 * 60 * 1000)) / (60 * 1000));
const seconds = Math.floor((timestamp % (60 * 1000)) / 1000);
const milliseconds = timestamp % 1000;
return hours.toString().padStart(2, '0') + ':' +
minutes.toString().padStart(2, '0') + ':' +
seconds.toString().padStart(2, '0') + '.' +
milliseconds.toString().padStart(3, '0');
};
return hours.toString().padStart(2, '0') + ':'
+ minutes.toString().padStart(2, '0') + ':'
+ seconds.toString().padStart(2, '0') + '.'
+ milliseconds.toString().padStart(3, '0');
};