make.go

Documentation: github.com/alecthomas/chroma/v2/lexers

     1  package lexers
     2  
     3  import (
     4  	. "github.com/alecthomas/chroma/v2" // nolint
     5  )
     6  
     7  // Makefile lexer.
     8  var Makefile = Register(MustNewLexer(
     9  	&Config{
    10  		Name:      "Makefile",
    11  		Aliases:   []string{"make", "makefile", "mf", "bsdmake"},
    12  		Filenames: []string{"*.mak", "*.mk", "Makefile", "makefile", "Makefile.*", "GNUmakefile", "BSDmakefile"},
    13  		MimeTypes: []string{"text/x-makefile"},
    14  		EnsureNL:  true,
    15  	},
    16  	makefileRules,
    17  ))
    18  
    19  func makefileRules() Rules {
    20  	return Rules{
    21  		"root": {
    22  			{`^(?:[\t ]+.*\n|\n)+`, Using("Bash"), nil},
    23  			{`\$[<@$+%?|*]`, Keyword, nil},
    24  			{`\s+`, Text, nil},
    25  			{`#.*?\n`, Comment, nil},
    26  			{`(export)(\s+)(?=[\w${}\t -]+\n)`, ByGroups(Keyword, Text), Push("export")},
    27  			{`export\s+`, Keyword, nil},
    28  			{`([\w${}().-]+)(\s*)([!?:+]?=)([ \t]*)((?:.*\\\n)+|.*\n)`, ByGroups(NameVariable, Text, Operator, Text, Using("Bash")), nil},
    29  			{`(?s)"(\\\\|\\.|[^"\\])*"`, LiteralStringDouble, nil},
    30  			{`(?s)'(\\\\|\\.|[^'\\])*'`, LiteralStringSingle, nil},
    31  			{`([^\n:]+)(:+)([ \t]*)`, ByGroups(NameFunction, Operator, Text), Push("block-header")},
    32  			{`\$\(`, Keyword, Push("expansion")},
    33  		},
    34  		"expansion": {
    35  			{`[^$a-zA-Z_()]+`, Text, nil},
    36  			{`[a-zA-Z_]+`, NameVariable, nil},
    37  			{`\$`, Keyword, nil},
    38  			{`\(`, Keyword, Push()},
    39  			{`\)`, Keyword, Pop(1)},
    40  		},
    41  		"export": {
    42  			{`[\w${}-]+`, NameVariable, nil},
    43  			{`\n`, Text, Pop(1)},
    44  			{`\s+`, Text, nil},
    45  		},
    46  		"block-header": {
    47  			{`[,|]`, Punctuation, nil},
    48  			{`#.*?\n`, Comment, Pop(1)},
    49  			{`\\\n`, Text, nil},
    50  			{`\$\(`, Keyword, Push("expansion")},
    51  			{`[a-zA-Z_]+`, Name, nil},
    52  			{`\n`, Text, Pop(1)},
    53  			{`.`, Text, nil},
    54  		},
    55  	}
    56  }
    57
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