kakoune/rc/filetype/latex.kak

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# https://www.latex-project.org/
#
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*\.tex %{
set-option buffer filetype latex
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}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/latex regions
add-highlighter shared/latex/content default-region group
add-highlighter shared/latex/comment region '(?<!\\)%' '\n' fill comment
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# Scopes, starting with a backslash
add-highlighter shared/latex/content/ regex '\\(?!_)\w+\b' 0:keyword
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# Options passed to scopes, between brackets
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
add-highlighter shared/latex/content/ regex '\\(emph|textit)\{([^}]+)\}' 2:default+i
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# Bold text
add-highlighter shared/latex/content/ regex '\\textbf\{([^}]+)\}' 1:default+b
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# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group latex-highlight global WinSetOption filetype=latex %{
add-highlighter window/latex ref latex
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/latex }
}