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Multiline equation support

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This commit is contained in:
Joseph Rautenbach 2019-05-23 11:25:50 +02:00
parent 8214ce5111
commit ea73f4d45c
1 changed files with 8 additions and 3 deletions
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11
app.js
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@ -46,9 +46,9 @@ var documentTemplate = `
${preamble} ${preamble}
\\thispagestyle{empty} \\thispagestyle{empty}
\\begin{document} \\begin{document}
\\[ \\begin{align*}
EQUATION EQUATION
\\] \\end{align*}
\\end{document}`; \\end{document}`;
// Create temp and output directories on first run // Create temp and output directories on first run
@ -76,10 +76,15 @@ app.post('/convert', function (req, res) {
if (validScales.includes(req.body.outputScale)) { if (validScales.includes(req.body.outputScale)) {
if (validFormats.includes(req.body.outputFormat)) { if (validFormats.includes(req.body.outputFormat)) {
var id = generateID(); // Generate unique ID for filename var id = generateID(); // Generate unique ID for filename
var eqnInput = req.body.latexInput.trim();
if (/\\\\(?!$)/.test(eqnInput) && !eqnInput.includes("&")) { // if any "\\" not at EOF, unless intentionally aligned with &
eqnInput = '&' + eqnInput.replace(/\\\\(?!$)/g, "\\\\&"); // replace any "\\" not at EOF with "\\&", to enforce left alignment
}
shell.mkdir(`${tempDirRoot}${id}`); shell.mkdir(`${tempDirRoot}${id}`);
var document = documentTemplate.replace('EQUATION', req.body.latexInput.trim()); var document = documentTemplate.replace('EQUATION', eqnInput);
fs.writeFileSync(`${tempDirRoot}${id}/equation.tex`, document); // Write generated .tex file fs.writeFileSync(`${tempDirRoot}${id}/equation.tex`, document); // Write generated .tex file
var result = {}; var result = {};