latex-parser.pegjs.js:825 "Two \\documentclass commands. The document may only declare one class" #155

artistl · 2024-08-12T17:29:58Z

Is there any obvious reason to be getting this error in the js console? I think I'm doing everything right...? My first time calling doPandoc(), everything works. But the second+ times I get this error.
What is received back from the HTTP response is not a standalone latex doc... it has nothing like \documentclass.

<head>
  <script src="https://cdn.jsdelivr.net/npm/latex.js/dist/latex.js"></script>
</head>

...

<script>

    var isFirst = true
    
    let generator = new latexjs.HtmlGenerator({hyphenate: false})

    function doPandoc() {
        var contents = document.getElementById("in").value;

        $.post(
            "/kip/editor/pandoc",
            {markdown: contents},
            function(data) {
                generator = latexjs.parse(data, {generator: generator})
                if (isFirst) {
                    document.head.appendChild(generator.stylesAndScripts("https://cdn.jsdelivr.net/npm/latex.js@0.12.4/dist/"))
                }
                isFirst = false
                document.body.appendChild(generator.domFragment())
            }
        )
    }

</script>

michael-brade · 2024-08-30T00:01:07Z

Ah. Well, calling parse replaces the documentclass macro with that error. So that means you cannot use it twice on different documents. Therefore, you have to call generator.reset() first thing in your function, before latexjs.parse().

Let me know if that solves your issue.

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latex-parser.pegjs.js:825 "Two \\documentclass commands. The document may only declare one class" #155

latex-parser.pegjs.js:825 "Two \\documentclass commands. The document may only declare one class" #155

artistl commented Aug 12, 2024 •

edited

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michael-brade commented Aug 30, 2024

latex-parser.pegjs.js:825 "Two \\documentclass commands. The document may only declare one class" #155

latex-parser.pegjs.js:825 "Two \\documentclass commands. The document may only declare one class" #155

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artistl commented Aug 12, 2024 • edited Loading

michael-brade commented Aug 30, 2024

artistl commented Aug 12, 2024 •

edited

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