mirror of
https://github.com/cheat/cheat.git
synced 2024-12-18 18:55:06 +01:00
48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
package lexers
|
|
|
|
import (
|
|
. "github.com/alecthomas/chroma/v2" // nolint
|
|
)
|
|
|
|
// Markdown lexer.
|
|
var Markdown = Register(DelegatingLexer(HTML, MustNewLexer(
|
|
&Config{
|
|
Name: "markdown",
|
|
Aliases: []string{"md", "mkd"},
|
|
Filenames: []string{"*.md", "*.mkd", "*.markdown"},
|
|
MimeTypes: []string{"text/x-markdown"},
|
|
},
|
|
markdownRules,
|
|
)))
|
|
|
|
func markdownRules() Rules {
|
|
return Rules{
|
|
"root": {
|
|
{`^(#[^#].+\n)`, ByGroups(GenericHeading), nil},
|
|
{`^(#{2,6}.+\n)`, ByGroups(GenericSubheading), nil},
|
|
{`^(\s*)([*-] )(\[[ xX]\])( .+\n)`, ByGroups(Text, Keyword, Keyword, UsingSelf("inline")), nil},
|
|
{`^(\s*)([*-])(\s)(.+\n)`, ByGroups(Text, Keyword, Text, UsingSelf("inline")), nil},
|
|
{`^(\s*)([0-9]+\.)( .+\n)`, ByGroups(Text, Keyword, UsingSelf("inline")), nil},
|
|
{`^(\s*>\s)(.+\n)`, ByGroups(Keyword, GenericEmph), nil},
|
|
{"^(```\\n)([\\w\\W]*?)(^```$)", ByGroups(String, Text, String), nil},
|
|
{
|
|
"^(```)(\\w+)(\\n)([\\w\\W]*?)(^```$)",
|
|
UsingByGroup(2, 4, String, String, String, Text, String),
|
|
nil,
|
|
},
|
|
Include("inline"),
|
|
},
|
|
"inline": {
|
|
{`\\.`, Text, nil},
|
|
{`(\s)(\*|_)((?:(?!\2).)*)(\2)((?=\W|\n))`, ByGroups(Text, GenericEmph, GenericEmph, GenericEmph, Text), nil},
|
|
{`(\s)((\*\*|__).*?)\3((?=\W|\n))`, ByGroups(Text, GenericStrong, GenericStrong, Text), nil},
|
|
{`(\s)(~~[^~]+~~)((?=\W|\n))`, ByGroups(Text, GenericDeleted, Text), nil},
|
|
{"`[^`]+`", LiteralStringBacktick, nil},
|
|
{`[@#][\w/:]+`, NameEntity, nil},
|
|
{`(!?\[)([^]]+)(\])(\()([^)]+)(\))`, ByGroups(Text, NameTag, Text, Text, NameAttribute, Text), nil},
|
|
{`[^\\\s]+`, Other, nil},
|
|
{`.|\n`, Other, nil},
|
|
},
|
|
}
|
|
}
|