Add vendor files for go build

vendor/github.com/alecthomas/chroma/lexers/m/markdown.go

@@ -0,0 +1,47 @@
+package m
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Markdown lexer.
+var Markdown = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "markdown",
+		Aliases:   []string{"md", "mkd"},
+		Filenames: []string{"*.md", "*.mkd", "*.markdown"},
+		MimeTypes: []string{"text/x-markdown"},
+	},
+	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(
+					internal.Get,
+					2, 4,
+					String, String, String, Text, String,
+				),
+				nil,
+			},
+			Include("inline"),
+		},
+		"inline": {
+			{`\\.`, Text, nil},
+			{`(\s)([*_][^*_]+[*_])(\W|\n)`, ByGroups(Text, 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]+`, Text, nil},
+			{`.|\n`, Text, nil},
+		},
+	},
+))