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be7a0695a8
This continues the work started by 0a9c90fec (rc: use a separate
*-insert hook to auto-insert comments, 2021-04-17).
The one that's left is Rust but that one is trickier.
145 lines
6.5 KiB
Plaintext
145 lines
6.5 KiB
Plaintext
# https://www.latex-project.org/
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#
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*\.(tex|cls|sty|dtx) %{
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set-option buffer filetype latex
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=latex %(
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require-module latex
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hook window InsertChar \n -group latex-insert %{ latex-insert-on-newline }
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hook window InsertChar \n -group latex-indent %{ latex-indent-newline }
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hook window InsertChar \} -group latex-indent %{ latex-indent-closing-brace }
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hook window ModeChange pop:insert:.* -group latex-indent %{ latex-trim-indent }
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window latex-indent }
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hook window InsertChar \n -group latex-insert latex-insert-on-new-line
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)
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hook -group latex-highlight global WinSetOption filetype=latex %{
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add-highlighter window/latex ref latex
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/latex }
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}
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provide-module latex %~
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/latex regions
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add-highlighter shared/latex/content default-region group
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# Region for control sequence (includes latex2e arguments and options)
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# starting with unescaped \ and ending :
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# - at eol, or
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# - at word boundaries not preceded nor followed by @ : \ { } [ ] *, or
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# - after an unescaped }
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add-highlighter shared/latex/cs region '(?<!\\)(?:\\\\)*\K\\[@\w]' '/\n|(?<![@:\\{}\[\]*])(?![@:\\{}\[\]*])\b|(?<!\\)(?:\\\\)*\K\}\K' group
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add-highlighter shared/latex/comment region '(?<!\\)(?:\\\\)*\K%' '\n' fill comment
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# Document and LaTeX2e control sequence
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add-highlighter shared/latex/cs/ regex '(?:\\[a-zA-Z@]+)' 0:keyword
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## Options passed to LaTeX2e control sequences, between brackets
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add-highlighter shared/latex/cs/ regex '\\[a-zA-Z@]+\b\[([^\]]+)\]' 1:value
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## Emphasized text
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add-highlighter shared/latex/cs/ regex '\\(?:emph|textit|textsl)\{([^}]+)\}' 1:default+i
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## Underlined text
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add-highlighter shared/latex/cs/ regex '\\underline\{([^}]+)\}' 1:default+u
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## Bold text
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add-highlighter shared/latex/cs/ regex '\\textbf\{([^}]+)\}' 1:default+b
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## Section headings
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add-highlighter shared/latex/cs/ regex '\\(part|section)\*?\{([^}]+)\}' 2:title
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add-highlighter shared/latex/cs/ regex '\\(chapter|(sub)+section|(sub)*paragraph)\*?\{([^}]+)\}' 4:header
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# LaTeX3 control sequence
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## Functions (expl3 doc) module_name:arguments_types.
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add-highlighter shared/latex/cs/ regex '\\(?:__|@@_)?[a-zA-Z@]+_\w+(:[nNpTFDwcVvxefo]+)?' 0:function 1:+db@type
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## Variables (expl3 doc): scope_name_type
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add-highlighter shared/latex/cs/ regex '\\([lgc]_)[a-zA-Z@]+_\w+' 0:variable 1:+db
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## l3kernel modules (l3kernel/doc/l3prefixes.csv)
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add-highlighter shared/latex/cs/ regex '\\(alignment|alloc|ampersand|atsign|backslash|bitset|bool|box|catcode|cctab|char|chk|circumflex|clist|code|codedoc|coffin|colon|color|cs|debug|dim|document|dollar|driver|e|else|empty|etex|exp|expl|false|fi|file|flag|fp|group|hash|hbox|hcoffin|if|inf|initex|insert|int|intarray|ior|iow|job|kernel|keys|keyval|left|log|lua|luatex|mark|marks|math|max|minus|mode|msg|muskip|nan|nil|no|novalue|one|or|other|parameter|pdf|pdftex|peek|percent|pi|prg|prop|ptex|quark|recursion|ref|regex|reverse|right|scan|seq|skip|sort|space|stop|str|sys|tag|term|tex|text|tilde|tl|tmpa|tmpb|token|true|underscore|uptex|use|utex|vbox|vcoffin|xetex|zero)_' 0:+db
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# LaTeX3 types (expl3 doc)
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add-highlighter shared/latex/cs/ regex '_(bool|box|cctab|clist|coffin|dim|fp|ior|iow|int|muskip|prop|seq|skip|str|tl)\b' 0:+db
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# This belongs to content group as the LaTeX3 convention is separating macros names, args and options
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# with spaces and thus should not be catched by the cs region
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## macros arguments
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add-highlighter shared/latex/content/ regex '(?<!\\)(?:\\\\)*\K#+[1-9]' 0:string
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## group containing words and numbers (list separated by ; , / or spaces)
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add-highlighter shared/latex/content/ regex '(?<!\\)(?:\\\\)*\K\{([\s/;,.\w\d]+)\}' 1:string
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# Math mode between dollar signs/pairs
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add-highlighter shared/latex/content/ regex '((?<!\\)(?:\\\\)*\K\$(\\\$|[^$])+\$)|((?<!\\)(?:\\\\)*\K\$\$(\\\$|[^$])+\$\$)|((?<!\\)(?:\\\\)*\K\\\[.*?\\\])|(\\\(.*?\\\))' 0:meta
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# Indent
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# ------
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define-command -hidden latex-trim-indent %{
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evaluate-commands -no-hooks -draft -itersel %{
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try %{ execute-keys x 1s^(\h+)$<ret> d }
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}
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}
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define-command -hidden latex-insert-on-newline %{
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# copy '%' comment prefix and following white spaces
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try %{ execute-keys -draft kx s^\h*%\h*<ret> y jgh P }
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}
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define-command -hidden latex-indent-newline %(
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evaluate-commands -no-hooks -draft -itersel %(
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# preserve previous line indent
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try %{ execute-keys -draft K<a-&> }
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# cleanup trailing whitespaces from previous line
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try %{ execute-keys -draft kx s\h+$<ret> d }
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# indent after line ending with {
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try %( execute-keys -draft kx <a-k>\{$<ret> j<a-gt> )
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# deindent closing brace(s) when after cursor
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try %( execute-keys -draft x <a-k> ^\h*\} <ret> gh / \} <ret> m <a-S> 1<a-&> )
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# indent after line ending with \begin{...}[...]{...}, with multiple
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# sets of arguments possible
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try %(
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execute-keys -draft \
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kx \
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<a-k>\\begin\h*\{[^\}]+\}(\h|\[.*\]|\{.*\})*$<ret> \
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j<a-gt>
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)
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)
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)
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define-command -hidden latex-indent-closing-brace %(
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evaluate-commands -no-hooks -draft -itersel %(
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# Align lone } with matching bracket
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try %( execute-keys -draft x_ <a-k>\A\}\z<ret> m<a-S>1<a-&> )
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# Align \end{...} with corresponding \begin{...}
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try %(
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execute-keys -draft h<a-h> 1s\\end\h*\{([^\}]+)\}\z<ret> \
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<a-?>\\begin\s*\{<c-r>.\}<ret> <a-S>1<a-&>
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)
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)
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)
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define-command -hidden latex-insert-on-new-line %(
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evaluate-commands -no-hooks -draft -itersel %(
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# Wisely add "\end{...}".
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evaluate-commands -save-regs xz %(
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# Save previous line indent in register x.
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try %( execute-keys -draft kxs^\h+<ret>"xy ) catch %( reg x '' )
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# Save item of begin in register z.
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try %( execute-keys -draft kxs\{.*\}<ret>"zy ) catch %( reg z '' )
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try %(
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# Validate previous line and that it is not closed yet.
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execute-keys -draft kx <a-k>^<c-r>x\h*\\begin\{.*\}<ret> J}iJx <a-K>^<c-r>x(\\end\<c-r>z<backspace>\})<ret>
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# Auto insert "\end{...}".
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execute-keys -draft o<c-r>x\end<c-r>z<esc>
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)
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)
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)
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)
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~
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