71 lines
1.8 KiB
Markdown
71 lines
1.8 KiB
Markdown
We provide a way to syntax-highlight Lean code in LaTeX documents.
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It requires a Python package `Pygments` and a LaTeX package `minted`.
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Python Package: `Pygments`
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--------------------------
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Checkout [Leanprover's Pygments repository][lean-pygments] and build Pygments:
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```bash
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hg clone https://bitbucket.org/leanprover/pygments-main
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cd pygments-main
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make mapfiles
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sudo ./setup.py install
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````
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[lean-pygments]: https://bitbucket.org/leanprover/pygments-main
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LaTeX package: `minted`
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-----------------------
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Save the latest version of [minted.sty][minted.sty] at the working directory.
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[minted]: https://github.com/gpoore/minted
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[minted.sty]: https://raw.githubusercontent.com/gpoore/minted/master/source/minted.sty
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How to use them (example)
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-------------------------
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Please save the following sample LaTeX file as `test.tex`:
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```latex
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\documentclass{article}
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\usepackage{minted}
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\setminted{encoding=utf-8}
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\usepackage{fontspec}
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\setmainfont{FreeSerif}
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\setmonofont{FreeMono}
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\usepackage{fullpage}
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\begin{document}
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\begin{minted}[mathescape,
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linenos,
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numbersep=5pt,
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frame=lines,
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framesep=2mm]{Lean}
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theorem mul_cancel_left_or {a b c : ℤ} (H : a * b = a * c) : a = 0 ∨ b = c :=
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have H2 : a * (b - c) = 0, by simp,
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have H3 : a = 0 ∨ b - c = 0, from mul_eq_zero H2,
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or.imp_or_right H3 (assume H4 : b - c = 0, sub_eq_zero H4)
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\end{minted}
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\end{document}
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```
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You can compile `test.tex` by executing the following command:
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```bash
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xelatex --shell-escape test
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```
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Some remarks:
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- `xelatex` is required to handle unicode in LaTeX.
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- `--shell-escape` option is needed to allow `xelatex` to execute `pygmentize` in a shell.
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Contribute
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----------
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Please fork [Leanprover's Pygments repository][lean-pygments], improve it, and make a pull-request.
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