1package lexers
 2
 3import (
 4	. "github.com/alecthomas/chroma/v2" // nolint
 5)
 6
 7// Docker lexer.
 8var Docker = Register(MustNewLexer(
 9	&Config{
10		Name:            "Docker",
11		Aliases:         []string{"docker", "dockerfile"},
12		Filenames:       []string{"Dockerfile", "*.docker"},
13		MimeTypes:       []string{"text/x-dockerfile-config"},
14		CaseInsensitive: true,
15	},
16	dockerRules,
17))
18
19func dockerRules() Rules {
20	return Rules{
21		"root": {
22			{`#.*`, Comment, nil},
23			{`(ONBUILD)((?:\s*\\?\s*))`, ByGroups(Keyword, Using("Bash")), nil},
24			{`(HEALTHCHECK)(((?:\s*\\?\s*)--\w+=\w+(?:\s*\\?\s*))*)`, ByGroups(Keyword, Using("Bash")), nil},
25			{`(VOLUME|ENTRYPOINT|CMD|SHELL)((?:\s*\\?\s*))(\[.*?\])`, ByGroups(Keyword, Using("Bash"), Using("JSON")), nil},
26			{`(LABEL|ENV|ARG)((?:(?:\s*\\?\s*)\w+=\w+(?:\s*\\?\s*))*)`, ByGroups(Keyword, Using("Bash")), nil},
27			{`((?:FROM|MAINTAINER|EXPOSE|WORKDIR|USER|STOPSIGNAL)|VOLUME)\b(.*)`, ByGroups(Keyword, LiteralString), nil},
28			{`((?:RUN|CMD|ENTRYPOINT|ENV|ARG|LABEL|ADD|COPY))`, Keyword, nil},
29			{`(.*\\\n)*.+`, Using("Bash"), nil},
30		},
31	}
32}