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-- mod-version:3
local syntax = require "core.syntax"
syntax.add {
name = "Awk script",
files = "%.awk$",
headers = "^#!.*bin.*awk",
comment = "#",
patterns = {
-- $# is a awk special variable and the '#' shouldn't be interpreted
-- as a comment.
{ pattern = "%$[%a_@*#][%w_]*", type = "keyword2" },
-- Comments
{ pattern = "#.*", type = "comment" },
-- Strings
{ pattern = { '"', '"', '\\' }, type = "string" },
{ pattern = { "'", "'", '\\' }, type = "string" },
{ pattern = { '`', '`', '\\' }, type = "string" },
-- Ignore numbers that start with dots or slashes
{ pattern = "%f[%w_%.%/]%d[%d%.]*%f[^%w_%.]", type = "number" },
-- Operators
{ pattern = "[!<>|&%[%]:=*]", type = "operator" },
-- Match parameters
{ pattern = "%f[%S][%+%-][%w%-_:]+", type = "function" },
{ pattern = "%f[%S][%+%-][%w%-_]+%f[=]", type = "function" },
-- Prevent parameters with assignments from been matched as variables
{
pattern = "%s%-%a[%w_%-]*()%s+()%d[%d%.]+",
type = { "function", "normal", "number" }
},
{
pattern = "%s%-%a[%w_%-]*()%s+()%a[%a%-_:=]+",
type = { "function", "normal", "symbol" }
},
-- Match variable assignments
{ pattern = "[_%a][%w_]+%f[%+=]", type = "keyword2" },
-- Match variable expansions
{ pattern = "%${.-}", type = "keyword2" },
{ pattern = "%$[%d%$%a_@*][%w_]*", type = "keyword2" },
-- Functions
{ pattern = "[%a_%-][%w_%-]*()%s*%f[(]", type = { "function", "normal" } },
-- Everything else
{ pattern = "[%a_][%w_]*", type = "symbol" },
},
symbols = {
["break"] = "keyword",
["continue"] = "keyword",
["do"] = "keyword",
["delete"] = "keyword",
["else"] = "keyword",
["exit"] = "keyword",
["for"] = "keyword",
["function"] = "keyword",
["getline"] = "keyword",
["if"] = "keyword",
["next"] = "keyword",
["nextfile"] = "keyword",
["print"] = "keyword",
["printf"] = "keyword",
["return"] = "keyword",
["while"] = "keyword",
["gsub"] = "keyword",
["index"] = "keyword",
["length"] = "keyword",
["match"] = "keyword",
["split"] = "keyword",
["sprintf"] = "keyword",
["sub"] = "keyword",
["substr"] = "keyword",
["tolower"] = "keyword",
["toupper"] = "keyword",
["atan2"] = "keyword",
["cos"] = "keyword",
["exp"] = "keyword",
["int"] = "keyword",
["log"] = "keyword",
["rand"] = "keyword",
["sin"] = "keyword",
["sqrt"] = "keyword",
["srand"] = "keyword",
["BEGIN"] = "keyword",
["END"] = "keyword",
["ARGC"] = "keyword",
["ARGV"] = "keyword",
["FILENAME"] = "keyword",
["FNR"] = "keyword",
["FS"] = "keyword",
["NF"] = "keyword",
["NR"] = "keyword",
["OFMT"] = "keyword",
["OFS"] = "keyword",
["ORS"] = "keyword",
["RLENGTH"] = "keyword",
["RS"] = "keyword",
["RSTART"] = "keyword",
["SUBSEP"] = "keyword",
["ARGIND"] = "keyword",
["BINMODE"] = "keyword",
["CONVFMT"] = "keyword",
["ENVIRON"] = "keyword",
["ERRNO"] = "keyword",
["FIELDWIDTHS"] = "keyword",
["IGNORECASE"] = "keyword",
["LINT"] = "keyword",
["PROCINFO"] = "keyword",
["RT"] = "keyword",
["RLENGTH"] = "keyword",
["TEXTDOMAIN"] = "keyword"
}
}
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