1package c
 2
 3import (
 4	. "github.com/alecthomas/chroma" // nolint
 5	"github.com/alecthomas/chroma/lexers/internal"
 6)
 7
 8// Chaiscript lexer.
 9var Chaiscript = internal.Register(MustNewLexer(
10	&Config{
11		Name:      "ChaiScript",
12		Aliases:   []string{"chai", "chaiscript"},
13		Filenames: []string{"*.chai"},
14		MimeTypes: []string{"text/x-chaiscript", "application/x-chaiscript"},
15		DotAll:    true,
16	},
17	Rules{
18		"commentsandwhitespace": {
19			{`\s+`, Text, nil},
20			{`//.*?\n`, CommentSingle, nil},
21			{`/\*.*?\*/`, CommentMultiline, nil},
22			{`^\#.*?\n`, CommentSingle, nil},
23		},
24		"slashstartsregex": {
25			Include("commentsandwhitespace"),
26			{`/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/([gim]+\b|\B)`, LiteralStringRegex, Pop(1)},
27			{`(?=/)`, Text, Push("#pop", "badregex")},
28			Default(Pop(1)),
29		},
30		"badregex": {
31			{`\n`, Text, Pop(1)},
32		},
33		"root": {
34			Include("commentsandwhitespace"),
35			{`\n`, Text, nil},
36			{`[^\S\n]+`, Text, nil},
37			{`\+\+|--|~|&&|\?|:|\|\||\\(?=\n)|\.\.(<<|>>>?|==?|!=?|[-<>+*%&|^/])=?`, Operator, Push("slashstartsregex")},
38			{`[{(\[;,]`, Punctuation, Push("slashstartsregex")},
39			{`[})\].]`, Punctuation, nil},
40			{`[=+\-*/]`, Operator, nil},
41			{`(for|in|while|do|break|return|continue|if|else|throw|try|catch)\b`, Keyword, Push("slashstartsregex")},
42			{`(var)\b`, KeywordDeclaration, Push("slashstartsregex")},
43			{`(attr|def|fun)\b`, KeywordReserved, nil},
44			{`(true|false)\b`, KeywordConstant, nil},
45			{`(eval|throw)\b`, NameBuiltin, nil},
46			{"`\\S+`", NameBuiltin, nil},
47			{`[$a-zA-Z_]\w*`, NameOther, nil},
48			{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
49			{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
50			{`[0-9]+`, LiteralNumberInteger, nil},
51			{`"`, LiteralStringDouble, Push("dqstring")},
52			{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
53		},
54		"dqstring": {
55			{`\$\{[^"}]+?\}`, LiteralStringInterpol, nil},
56			{`\$`, LiteralStringDouble, nil},
57			{`\\\\`, LiteralStringDouble, nil},
58			{`\\"`, LiteralStringDouble, nil},
59			{`[^\\"$]+`, LiteralStringDouble, nil},
60			{`"`, LiteralStringDouble, Pop(1)},
61		},
62	},
63))