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kakoune/rc/filetype/awk.kak

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# Detection
# ---------
hook global BufCreate .*\.awk %{
set-option buffer filetype awk
}
# Initialization
# --------------
hook global WinSetOption filetype=awk %{
require-module awk
hook window InsertChar \n -group awk-indent awk-indent-on-new-line
hook window ModeChange pop:insert:.* -group awk-trim-indent awk-trim-indent
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window awk-.+ }
}
hook -group awk-highlight global WinSetOption filetype=awk %{
add-highlighter window/awk ref awk
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/awk }
}
provide-module awk %@
# Highlighters
# ------------
add-highlighter shared/awk regions
add-highlighter shared/awk/code default-region group
add-highlighter shared/awk/comment region '#' '$' fill comment
add-highlighter shared/awk/string region '"' (?<!\\)(\\\\)*" fill string
add-highlighter shared/awk/regex region (\A|[^\s\w)\]+-]|\bcase)\s*\K/ (?<!\\)(\\\\)*/ fill attribute
add-highlighter shared/awk/code/ regex (\.\d+|\b\d+\.?\d*)([eE][+-]?\d+)?\b 0:value # Decimal/octal/scientific
add-highlighter shared/awk/code/ regex \b0[xX][\da-fA-F]+\b 0:value # Hexadecimal
add-highlighter shared/awk/code/ regex \$|\+|-|\*|/|%|\^|=|&&|\||!|<|>|\?|~ 0:operator
evaluate-commands %sh{
# Grammar
patterns="BEGIN END BEGINFILE ENDFILE"
variables="BINMODE CONVFMT FIELDWIDTHS FPAT FS IGNORECASE LINT OFMT OFS
ORS PREC ROUNDMODE RS SUBSEP TEXTDOMAIN ARGC ARGV ARGIND ENVIRON
ERRNO FILENAME FNR NF FUNCTAB NR PROCINFO RLENGTH RSTART RT SYMTAB"
keywords="break continue delete exit function getline next print printf
return switch nextfile func if else while for do"
functions="atan2 cos exp int intdiv log rand sin sqrt srand asort asort1
gensub gsub index length match patsplit split sprintf strtonum sub
substr tolower toupper close fflush system mktime strftime systime
and compl lshift or rshift xor isarray typeof bindtextdomain dcgettext
dcngetext"
join() { sep=$2; eval set -- $1; IFS="$sep"; echo "$*"; }
# Add the language's grammar to the static completion list
printf %s\\n "hook global WinSetOption filetype=awk %{
set-option window static_words $(join "${patterns} ${variables} ${keywords} ${functions}" ' ')
}"
# Highlight keywords
printf %s\\n "add-highlighter shared/awk/code/ regex \b($(join "${patterns}" '|'))\b 0:type"
printf %s\\n "add-highlighter shared/awk/code/ regex \b($(join "${variables}" '|'))\b 0:meta"
printf %s\\n "add-highlighter shared/awk/code/ regex \b($(join "${keywords}" '|'))\b 0:keyword"
printf %s\\n "add-highlighter shared/awk/code/ regex \b($(join "${functions}" '|'))\b 0:function"
}
# Commands
# --------
define-command -hidden awk-indent-on-new-line %[
evaluate-commands -draft -itersel %[
# preserve previous line indent
try %[ execute-keys -draft <semicolon> K <a-&> ]
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# cleanup trailing whitespaces from previous line
try %[ execute-keys -draft k <a-x> s \h+$ <ret> d ]
# indent after line ending in opening curly brace
try %[ execute-keys -draft k<a-x> <a-k>\{\h*(#.*)?$<ret> j<a-gt> ]
]
]
define-command -hidden awk-trim-indent %{
try %{ execute-keys -draft <semicolon> <a-x> s ^\h+$ <ret> d }
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}
@