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https://git.freetards.xyz/array.in.a.matrix/TexLiLy.git
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40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
# Converts a TeX file into a PNG/SVG file.
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template = r"""
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\documentclass[utf8,preview]{{standalone}}
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\usepackage{{amsmath}}
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\usepackage[active,tightpage]{{preview}}
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\usepackage[utf8]{{inputenc}}
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% TODO: Add user packages here.
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\begin{{document}}
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% The user content goes here.
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{content}
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\end{{document}}
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"""
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def render(user: str, source: str, png: bool = True) -> str:
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import tempfile
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import subprocess
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fmt = template.format(content=source)
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tmp = tempfile.NamedTemporaryFile(delete=False)
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tmp.write(bytes(fmt, encoding="utf8"))
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tmp.close()
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print(tmp.name)
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# Parse our templated file thru' LaTeX and dvipng.
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# TODO: Allow arbitrary DPI and foreground color.
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ret = subprocess.run(["latex", "-halt-on-error", tmp.name], cwd="/tmp", capture_output=True)
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if ret.returncode != 0:
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raise FileNotFoundError(ret.stdout.decode())
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if png:
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print("PNG")
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subprocess.run(["dvipng", "-D", "2000", tmp.name + ".dvi", "-bg", "Transparent",
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"-fg", "rgb 1 1 1", "-o", tmp.name + ".png"], cwd="/tmp")
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return tmp.name + ".png"
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# TODO:
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raise NotImplementedError("SVG support is not currently implemented")
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