127 lines
4.8 KiB
Plaintext
127 lines
4.8 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-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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add-highlighter shared/latex/comment region '(?<!\\)%' '\n' fill comment
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# latex2e private functions
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add-highlighter shared/latex/content/ regex '\\[a-zA-Z@]+\b' 0:function
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# Scopes, starting with a backslash
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add-highlighter shared/latex/content/ regex '\\[a-zA-Z]+\b' 0:keyword
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# latex3 functions
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add-highlighter shared/latex/content/ regex '\\(?:__)?[a-zA-Z@]+_\w+(:([nNpTFDwcVvxefo]+))?\b' 0:function 1:type
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# latex3 variable
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add-highlighter shared/latex/content/ regex '\\[lgc]_[a-zA-Z]+_[a-zA-Z]+\b' 0:variable
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# macros arguments
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add-highlighter shared/latex/content/ regex '#[1-9]\b' 0:string
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# grouped lists
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add-highlighter shared/latex/content/ regex '\{[\s/;, \w]+\}' 0:string
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# Options passed to scopes, between brackets
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add-highlighter shared/latex/content/ regex '\\(?!_)\w+\b\[([^\]]+)\]' 1:value
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# Content between dollar signs/pairs
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add-highlighter shared/latex/content/ regex '((?<!\\)\$(\\\$|[^$])+\$)|((?<!\\)\$\$(\\\$|[^$])+\$\$)|((?<!\\)\\\[.*?\\\])|(\\\(.*?\\\))' 0:meta
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# Emphasized text
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add-highlighter shared/latex/content/ regex '\\(emph|textit)\{([^}]+)\}' 2:default+i
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# Bold text
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add-highlighter shared/latex/content/ regex '\\textbf\{([^}]+)\}' 1:default+b
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# Section headings
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add-highlighter shared/latex/content/ regex '\\(part|section)\*?\{([^}]+)\}' 2:title
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add-highlighter shared/latex/content/ regex '\\(chapter|(sub)+section|(sub)*paragraph)\*?\{([^}]+)\}' 4:header
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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 <a-x> 1s^(\h+)$<ret> d }
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}
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}
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define-command -hidden latex-indent-newline %(
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evaluate-commands -no-hooks -draft -itersel %(
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# copy '%' comment prefix and following white spaces
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try %{ execute-keys -draft k<a-x> s^\h*%\h*<ret> y jgh P }
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# preserve previous line indent
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try %{ execute-keys -draft K<a-&> }
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# cleanup trailing whitespaces from previous line
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try %{ execute-keys -draft k<a-x> s\h+$<ret> d }
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# indent after line ending with {
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try %( execute-keys -draft k<a-x> <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 <a-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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k<a-x> \
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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 <a-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 k<a-x>s^\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 k<a-x>s\{.*\}<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 k<a-x> <a-k>^<c-r>x\h*\\begin\{.*\}<ret> J}iJ<a-x> <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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