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package lexers
import (
. "github.com/alecthomas/chroma/v2" // nolint
)
// Makefile lexer.
var Makefile = Register(MustNewLexer(
&Config{
Name: "Makefile",
Aliases: []string{"make", "makefile", "mf", "bsdmake"},
Filenames: []string{"*.mak", "*.mk", "Makefile", "makefile", "Makefile.*", "GNUmakefile", "BSDmakefile"},
MimeTypes: []string{"text/x-makefile"},
EnsureNL: true,
},
makefileRules,
))
func makefileRules() Rules {
return Rules{
"root": {
{`^(?:[\t ]+.*\n|\n)+`, Using("Bash"), nil},
{`\$[<@$+%?|*]`, Keyword, nil},
{`\s+`, Text, nil},
{`#.*?\n`, Comment, nil},
{`(export)(\s+)(?=[\w${}\t -]+\n)`, ByGroups(Keyword, Text), Push("export")},
{`export\s+`, Keyword, nil},
{`([\w${}().-]+)(\s*)([!?:+]?=)([ \t]*)((?:.*\\\n)+|.*\n)`, ByGroups(NameVariable, Text, Operator, Text, Using("Bash")), nil},
{`(?s)"(\\\\|\\.|[^"\\])*"`, LiteralStringDouble, nil},
{`(?s)'(\\\\|\\.|[^'\\])*'`, LiteralStringSingle, nil},
{`([^\n:]+)(:+)([ \t]*)`, ByGroups(NameFunction, Operator, Text), Push("block-header")},
{`\$\(`, Keyword, Push("expansion")},
},
"expansion": {
{`[^$a-zA-Z_()]+`, Text, nil},
{`[a-zA-Z_]+`, NameVariable, nil},
{`\$`, Keyword, nil},
{`\(`, Keyword, Push()},
{`\)`, Keyword, Pop(1)},
},
"export": {
{`[\w${}-]+`, NameVariable, nil},
{`\n`, Text, Pop(1)},
{`\s+`, Text, nil},
},
"block-header": {
{`[,|]`, Punctuation, nil},
{`#.*?\n`, Comment, Pop(1)},
{`\\\n`, Text, nil},
{`\$\(`, Keyword, Push("expansion")},
{`[a-zA-Z_]+`, Name, nil},
{`\n`, Text, Pop(1)},
{`.`, Text, nil},
},
}
}
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