79 lines
2.3 KiB
JavaScript
79 lines
2.3 KiB
JavaScript
/* eslint-disable
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max-len,
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no-cond-assign,
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*/
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// TODO: This file was created by bulk-decaffeinate.
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// Fix any style issues and re-enable lint.
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/*
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* decaffeinate suggestions:
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* DS101: Remove unnecessary use of Array.from
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* DS102: Remove unnecessary code created because of implicit returns
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* DS207: Consider shorter variations of null checks
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* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
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*/
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let DocumentHelper
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module.exports = DocumentHelper = {
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getTitleFromTexContent(content, maxContentToScan) {
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if (maxContentToScan == null) {
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maxContentToScan = 30000
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}
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const TITLE_WITH_CURLY_BRACES = /\\[tT]itle\*?\s*{([^}]+)}/
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const TITLE_WITH_SQUARE_BRACES = /\\[tT]itle\s*\[([^\]]+)\]/
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for (const line of Array.from(
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DocumentHelper._getLinesFromContent(content, maxContentToScan)
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)) {
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let match
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if (
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(match =
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line.match(TITLE_WITH_CURLY_BRACES) ||
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line.match(TITLE_WITH_SQUARE_BRACES))
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) {
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return DocumentHelper.detex(match[1])
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}
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}
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return null
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},
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contentHasDocumentclass(content, maxContentToScan) {
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if (maxContentToScan == null) {
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maxContentToScan = 30000
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}
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for (const line of Array.from(
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DocumentHelper._getLinesFromContent(content, maxContentToScan)
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)) {
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// We've had problems with this regex locking up CPU.
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// Previously /.*\\documentclass/ would totally lock up on lines of 500kb (data text files :()
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// This regex will only look from the start of the line, including whitespace so will return quickly
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// regardless of line length.
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if (line.match(/^\s*\\documentclass/)) {
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return true
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}
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}
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return false
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},
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detex(string) {
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return string
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.replace(/\\LaTeX/g, 'LaTeX')
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.replace(/\\TeX/g, 'TeX')
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.replace(/\\TikZ/g, 'TikZ')
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.replace(/\\BibTeX/g, 'BibTeX')
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.replace(/\\\[[A-Za-z0-9. ]*\]/g, ' ') // line spacing
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.replace(/\\(?:[a-zA-Z]+|.|)/g, '')
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.replace(/{}|~/g, ' ')
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.replace(/[${}]/g, '')
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.replace(/ +/g, ' ')
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.trim()
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},
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_getLinesFromContent(content, maxContentToScan) {
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if (typeof content === 'string') {
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return content.substring(0, maxContentToScan).split('\n')
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} else {
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return content
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}
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},
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}
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