/usr/share/kak/rc/extra/latex.kak is in kakoune 0~2016.12.20.1.3a6167ae-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | # https://www.latex-project.org/
#
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*\.tex %{
set buffer filetype latex
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
addhl -group / regions -default content latex \
comment '(?<!\\)%' '\n' ''
addhl -group /latex/comment fill comment
# Scopes, starting with a backslash
addhl -group /latex/content regex '\\(?!_)\w+\b' 0:keyword
# Options passed to scopes, between brackets
addhl -group /latex/content regex '\\(?!_)\w+\b\[([^]]+)\]' 1:value
# Content between dollar signs/pairs
addhl -group /latex/content regex '(?<!\\)\$\$?([^$]|(?<=\\)\$)+\$\$?' 0:magenta
# Emphasized text
addhl -group /latex/content regex '\\(emph|textit)\{([^}]+)\}' 2:default+i
# Bold text
addhl -group /latex/content regex '\\textbf\{([^}]+)\}' 1:default+b
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group latex-highlight global WinSetOption filetype=latex %{ addhl ref latex }
hook -group latex-highlight global WinSetOption filetype=(?!latex).* %{ rmhl latex }
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