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-- mod-version:3
local syntax = require "core.syntax"
syntax.add {
name = "Shell script",
files = { "%.sh$" },
headers = "^#!.*bin.*sh\n",
comment = "#",
patterns = {
-- $# is a bash special variable and the '#' shouldn't be interpreted
-- as a comment.
{ pattern = "$[%a_@*#][%w_]*", type = "keyword2" },
-- Comments
{ pattern = "#.*\n", 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", "number" }
},
{
pattern = "%s%-%a[%w_%-]*%s+()%a[%a%-_:=]+",
type = { "function", "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" },
-- Everything else
{ pattern = "[%a_][%w_]*", type = "symbol" },
},
symbols = {
["case"] = "keyword",
["in"] = "keyword",
["esac"] = "keyword",
["if"] = "keyword",
["then"] = "keyword",
["elif"] = "keyword",
["else"] = "keyword",
["fi"] = "keyword",
["while"] = "keyword",
["do"] = "keyword",
["done"] = "keyword",
["for"] = "keyword",
["break"] = "keyword",
["continue"] = "keyword",
["function"] = "keyword",
["local"] = "keyword",
["echo"] = "keyword",
["return"] = "keyword",
["exit"] = "keyword",
["alias"] = "keyword",
["test"] = "keyword",
["cd"] = "keyword",
["declare"] = "keyword",
["enable"] = "keyword",
["eval"] = "keyword",
["exec"] = "keyword",
["export"] = "keyword",
["getopts"] = "keyword",
["hash"] = "keyword",
["history"] = "keyword",
["help"] = "keyword",
["jobs"] = "keyword",
["kill"] = "keyword",
["let"] = "keyword",
["mapfile"] = "keyword",
["printf"] = "keyword",
["read"] = "keyword",
["readarray"] = "keyword",
["pwd"] = "keyword",
["select"] = "keyword",
["set"] = "keyword",
["shift"] = "keyword",
["source"] = "keyword",
["time"] = "keyword",
["type"] = "keyword",
["until"] = "keyword",
["unalias"] = "keyword",
["unset"] = "keyword",
["true"] = "literal",
["false"] = "literal"
}
}
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