kc3-lang/md4c/test/spec-latex-math.txt
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Hash : a08f6a05
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Date : 2024-01-18T12:29:31
Improve/fix latex math extension. To mitigate false positives: * We accept $ and $$ as a potential opener only if it's not preceded with alnum char. * Similarly closer cannot be followed with alnum char. * We now also match closer with last preceding pontential opener, not the first one. (And to avoid nesting, any previous openers are ignored.) * Also revert an unintended change in 3fc207affaba313cc1f4ef3b4e9e57df89b0e028 which allowed keeping nested resolved marks in it.
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test/spec-latex-math.txt
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# LaTeX Math With the flag `MD_FLAG_LATEXMATHSPANS`, MD4C enables extension for recognition of LaTeX style math spans. A math span is is any text wrapped in dollars or double dollars (`$...$` or `$$...$$`). ```````````````````````````````` example $a+b=c$ Hello, world! . <p><x-equation>a+b=c</x-equation> Hello, world!</p> . --flatex-math ```````````````````````````````` However the LaTeX math spans cannot be nested: ```````````````````````````````` example $$foo $bar$ baz$$ . <p>$$foo <x-equation>bar</x-equation> baz$$</p> . --flatex-math ```````````````````````````````` The opening delimiter cannot be preceded with an alphanumerical character: ```````````````````````````````` example x$a+b=c$ . <p>x$a+b=c$</p> . --flatex-math ```````````````````````````````` Similarly the closing delimiter cannot be followed with an alphanumerical character: ```````````````````````````````` example $a+b=c$x . <p>$a+b=c$x</p> . --flatex-math ```````````````````````````````` If the double dollar sign is used, the math span is a display math span. ```````````````````````````````` example This is a display equation: $$\int_a^b x dx$$. . <p>This is a display equation: <x-equation type="display">\int_a^b x dx</x-equation>.</p> . --flatex-math ```````````````````````````````` Math spans may span multiple lines as they are normal spans: ```````````````````````````````` example $$ \int_a^b f(x) dx $$ . <p><x-equation type="display">\int_a^b f(x) dx </x-equation></p> . --flatex-math ```````````````````````````````` Note though that many (simple) renderers may output the math spans just as a verbatim text. (This includes the HTML renderer used by the `md2html` utility.) Only advanced renderers which implement LaTeX math syntax can be expected to provide better results.