hexdump.go

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

     1  package h
     2  
     3  import (
     4  	. "github.com/alecthomas/chroma" // nolint
     5  	"github.com/alecthomas/chroma/lexers/internal"
     6  )
     7  
     8  // Hexdump lexer.
     9  var Hexdump = internal.Register(MustNewLazyLexer(
    10  	&Config{
    11  		Name:      "Hexdump",
    12  		Aliases:   []string{"hexdump"},
    13  		Filenames: []string{},
    14  		MimeTypes: []string{},
    15  	},
    16  	hexdumpRules,
    17  ))
    18  
    19  func hexdumpRules() Rules {
    20  	return Rules{
    21  		"root": {
    22  			{`\n`, Text, nil},
    23  			Include("offset"),
    24  			{`([0-9A-Ha-h]{2})(\-)([0-9A-Ha-h]{2})`, ByGroups(LiteralNumberHex, Punctuation, LiteralNumberHex), nil},
    25  			{`[0-9A-Ha-h]{2}`, LiteralNumberHex, nil},
    26  			{`(\s{2,3})(\>)(.{16})(\<)$`, ByGroups(Text, Punctuation, LiteralString, Punctuation), Push("bracket-strings")},
    27  			{`(\s{2,3})(\|)(.{16})(\|)$`, ByGroups(Text, Punctuation, LiteralString, Punctuation), Push("piped-strings")},
    28  			{`(\s{2,3})(\>)(.{1,15})(\<)$`, ByGroups(Text, Punctuation, LiteralString, Punctuation), nil},
    29  			{`(\s{2,3})(\|)(.{1,15})(\|)$`, ByGroups(Text, Punctuation, LiteralString, Punctuation), nil},
    30  			{`(\s{2,3})(.{1,15})$`, ByGroups(Text, LiteralString), nil},
    31  			{`(\s{2,3})(.{16}|.{20})$`, ByGroups(Text, LiteralString), Push("nonpiped-strings")},
    32  			{`\s`, Text, nil},
    33  			{`^\*`, Punctuation, nil},
    34  		},
    35  		"offset": {
    36  			{`^([0-9A-Ha-h]+)(:)`, ByGroups(NameLabel, Punctuation), Push("offset-mode")},
    37  			{`^[0-9A-Ha-h]+`, NameLabel, nil},
    38  		},
    39  		"offset-mode": {
    40  			{`\s`, Text, Pop(1)},
    41  			{`[0-9A-Ha-h]+`, NameLabel, nil},
    42  			{`:`, Punctuation, nil},
    43  		},
    44  		"piped-strings": {
    45  			{`\n`, Text, nil},
    46  			Include("offset"),
    47  			{`[0-9A-Ha-h]{2}`, LiteralNumberHex, nil},
    48  			{`(\s{2,3})(\|)(.{1,16})(\|)$`, ByGroups(Text, Punctuation, LiteralString, Punctuation), nil},
    49  			{`\s`, Text, nil},
    50  			{`^\*`, Punctuation, nil},
    51  		},
    52  		"bracket-strings": {
    53  			{`\n`, Text, nil},
    54  			Include("offset"),
    55  			{`[0-9A-Ha-h]{2}`, LiteralNumberHex, nil},
    56  			{`(\s{2,3})(\>)(.{1,16})(\<)$`, ByGroups(Text, Punctuation, LiteralString, Punctuation), nil},
    57  			{`\s`, Text, nil},
    58  			{`^\*`, Punctuation, nil},
    59  		},
    60  		"nonpiped-strings": {
    61  			{`\n`, Text, nil},
    62  			Include("offset"),
    63  			{`([0-9A-Ha-h]{2})(\-)([0-9A-Ha-h]{2})`, ByGroups(LiteralNumberHex, Punctuation, LiteralNumberHex), nil},
    64  			{`[0-9A-Ha-h]{2}`, LiteralNumberHex, nil},
    65  			{`(\s{19,})(.{1,20}?)$`, ByGroups(Text, LiteralString), nil},
    66  			{`(\s{2,3})(.{1,20})$`, ByGroups(Text, LiteralString), nil},
    67  			{`\s`, Text, nil},
    68  			{`^\*`, Punctuation, nil},
    69  		},
    70  	}
    71  }
    72
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