home/rc/base/markdown.kak
Dan Rosén 5bc62c6942 Fix highlight references in Markdown fenced code blocks
Fixes #1735

We need \K to not interfer with languages own interpretation of ` like multiline strings in javascript

We need \b in e.g. java\b otherwise it blocks javascript

I couldn't get the bare ``` to not block the other highlighters when introducing \K any other way than negative lookahead of all possible highlighers
2017-12-10 23:00:26 +01:00

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# http://daringfireball.net/projects/markdown
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](markdown|md|mkd) %{
set-option buffer filetype markdown
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/ regions -default content markdown \
c ^```\h*c\b\K ``` '' \
cabal ^```\h*cabal\b\K ``` '' \
clojure ^```\h*clojure\b\K ``` '' \
coffee ^```\h*coffee\b\K ``` '' \
cpp ^```\h*cpp\b\K ``` '' \
css ^```\h*css\b\K ``` '' \
cucumber ^```\h*cucumber\b\K ``` '' \
d ^```\h*d\b\K ``` '' \
diff ^```\h*diff\b\K ``` '' \
dockerfile ^```\h*dockerfile\b\K ``` '' \
fish ^```\h*fish\b\K ``` '' \
gas ^```\h*gas\b\K ``` '' \
go ^```\h*go\b\K ``` '' \
haml ^```\h*haml\b\K ``` '' \
haskell ^```\h*haskell\b\K ``` '' \
html ^```\h*html\b\K ``` '' \
ini ^```\h*ini\b\K ``` '' \
java ^```\h*java\b\K ``` '' \
javascript ^```\h*javascript\b\K ``` '' \
json ^```\h*json\b\K ``` '' \
julia ^```\h*julia\b\K ``` '' \
kak ^```\h*kak\b\K ``` '' \
kickstart ^```\h*kickstart\b\K ``` '' \
latex ^```\h*latex\b\K ``` '' \
lisp ^```\h*lisp\b\K ``` '' \
lua ^```\h*lua\b\K ``` '' \
makefile ^```\h*makefile\b\K ``` '' \
moon ^```\h*moon\b\K ``` '' \
objc ^```\h*objc\b\K ``` '' \
perl ^```\h*perl\b\K ``` '' \
pug ^```\h*pug\b\K ``` '' \
python ^```\h*python\b\K ``` '' \
ragel ^```\h*ragel\b\K ``` '' \
ruby ^```\h*ruby\b\K ``` '' \
rust ^```\h*rust\b\K ``` '' \
sass ^```\h*sass\b\K ``` '' \
scala ^```\h*scala\b\K ``` '' \
scss ^```\h*scss\b\K ``` '' \
sh ^```\h*sh\b\K ``` '' \
swift ^```\h*swift\b\K ``` '' \
tupfile ^```\h*tupfile\b\K ``` '' \
typescript ^```\h*typescript\b\K ``` '' \
yaml ^```\h*yaml\b\K ``` '' \
code ^```((!?=(c|cabal|clojure|coffee|cpp|css|cucumber|diff|dockerfile|fish|gas|go|haml|haskell|html|ini|java|javascript|json|julia|kakrc|kickstart|latex|lisp|lua|makefile|moon|objc|perl|pug|python|ragel|ruby|rust|sass|scala|scss|sh|swift|tupfile|typescript|yaml)[^\n])*)$ ``` '' \
code ^``[^`] `` '' \
code ^`[^`] ` ''
add-highlighter shared/markdown/code fill meta
add-highlighter shared/markdown/c ref c
add-highlighter shared/markdown/cabal ref cabal
add-highlighter shared/markdown/clojure ref clojure
add-highlighter shared/markdown/coffee ref coffee
add-highlighter shared/markdown/cpp ref cpp
add-highlighter shared/markdown/css ref css
add-highlighter shared/markdown/cucumber ref cucumber
add-highlighter shared/markdown/d ref d
add-highlighter shared/markdown/diff ref diff
add-highlighter shared/markdown/dockerfile ref dockerfile
add-highlighter shared/markdown/fish ref fish
add-highlighter shared/markdown/gas ref gas
add-highlighter shared/markdown/go ref go
add-highlighter shared/markdown/haml ref haml
add-highlighter shared/markdown/haskell ref haskell
add-highlighter shared/markdown/html ref html
add-highlighter shared/markdown/ini ref ini
add-highlighter shared/markdown/java ref java
add-highlighter shared/markdown/javascript ref javascript
add-highlighter shared/markdown/json ref json
add-highlighter shared/markdown/julia ref julia
add-highlighter shared/markdown/kak ref kakrc
add-highlighter shared/markdown/kickstart ref kickstart
add-highlighter shared/markdown/latex ref latex
add-highlighter shared/markdown/lisp ref lisp
add-highlighter shared/markdown/lua ref lua
add-highlighter shared/markdown/makefile ref makefile
add-highlighter shared/markdown/moon ref moon
add-highlighter shared/markdown/objc ref objc
add-highlighter shared/markdown/perl ref perl
add-highlighter shared/markdown/pug ref pug
add-highlighter shared/markdown/python ref python
add-highlighter shared/markdown/ragel ref ragel
add-highlighter shared/markdown/ruby ref ruby
add-highlighter shared/markdown/rust ref rust
add-highlighter shared/markdown/sass ref sass
add-highlighter shared/markdown/scala ref scala
add-highlighter shared/markdown/scss ref scss
add-highlighter shared/markdown/sh ref sh
add-highlighter shared/markdown/swift ref swift
add-highlighter shared/markdown/tupfile ref tupfile
add-highlighter shared/markdown/typescript ref typescript
add-highlighter shared/markdown/yaml ref yaml
# Setext-style header
add-highlighter shared/markdown/content regex (\A|\n\n)[^\n]+\n={2,}\h*\n\h*$ 0:title
add-highlighter shared/markdown/content regex (\A|\n\n)[^\n]+\n-{2,}\h*\n\h*$ 0:header
# Atx-style header
add-highlighter shared/markdown/content regex ^(#+)(\h+)([^\n]+) 1:header
add-highlighter shared/markdown/content regex ^\h?((?:[\s\t]+)?[-\*])\h+[^\n]*(\n\h+[^-\*]\S+[^\n]*\n)*$ 0:list 1:bullet
add-highlighter shared/markdown/content regex \B\+[^\n]+?\+\B 0:mono
add-highlighter shared/markdown/content regex [^`](``([^\s`]|([^\s`][^`]*[^\s`]))``)[^`] 1:mono
add-highlighter shared/markdown/content regex [^*](\*([^\s*]|([^\s*][^*]*[^\s*]))\*)[^*] 1:italic
add-highlighter shared/markdown/content regex [^_](_([^\s_]|([^\s_][^_]*[^\s_]))_)[^_] 1:italic
add-highlighter shared/markdown/content regex [^*](\*\*([^\s*]|([^\s*][^*]*[^\s*]))\*\*)[^*] 1:bold
add-highlighter shared/markdown/content regex [^_](__([^\s_]|([^\s_][^_]*[^\s_]))__)[^_] 1:bold
add-highlighter shared/markdown/content regex <(([a-z]+://.*?)|((mailto:)?[\w+-]+@[a-z]+[.][a-z]+))> 0:link
add-highlighter shared/markdown/content regex ^\h*(>\h*)+ 0:comment
add-highlighter shared/markdown/content regex \H\K\h\h$ 0:PrimarySelection
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden markdown-indent-on-new-line %{
evaluate-commands -draft -itersel %{
# copy block quote(s), list item prefix and following white spaces
try %{ execute-keys -draft k <a-x> s ^\h*\K((>\h*)+([*+-]\h)?|(>\h*)*[*+-]\h)\h* <ret> y gh j P }
# preserve previous line indent
try %{ execute-keys -draft \; K <a-&> }
# remove trailing white spaces
try %{ execute-keys -draft -itersel %{ k<a-x> s \h+$ <ret> d } }
}
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group markdown-highlight global WinSetOption filetype=markdown %{ add-highlighter window ref markdown }
hook global WinSetOption filetype=markdown %{
hook window InsertChar \n -group markdown-indent markdown-indent-on-new-line
}
hook -group markdown-highlight global WinSetOption filetype=(?!markdown).* %{ remove-highlighter window/markdown }
hook global WinSetOption filetype=(?!markdown).* %{
remove-hooks window markdown-indent
}