Add vendor files for go build

vendor/github.com/alecthomas/chroma/lexers/a/awk.go

@@ -0,0 +1,48 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Awk lexer.
+var Awk = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Awk",
+		Aliases:   []string{"awk", "gawk", "mawk", "nawk"},
+		Filenames: []string{"*.awk"},
+		MimeTypes: []string{"application/x-awk"},
+	},
+	Rules{
+		"commentsandwhitespace": {
+			{`\s+`, Text, nil},
+			{`#.*$`, CommentSingle, nil},
+		},
+		"slashstartsregex": {
+			Include("commentsandwhitespace"),
+			{`/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/\B`, LiteralStringRegex, Pop(1)},
+			{`(?=/)`, Text, Push("#pop", "badregex")},
+			Default(Pop(1)),
+		},
+		"badregex": {
+			{`\n`, Text, Pop(1)},
+		},
+		"root": {
+			{`^(?=\s|/)`, Text, Push("slashstartsregex")},
+			Include("commentsandwhitespace"),
+			{`\+\+|--|\|\||&&|in\b|\$|!?~|(\*\*|[-<>+*%\^/!=|])=?`, Operator, Push("slashstartsregex")},
+			{`[{(\[;,]`, Punctuation, Push("slashstartsregex")},
+			{`[})\].]`, Punctuation, nil},
+			{`(break|continue|do|while|exit|for|if|else|return)\b`, Keyword, Push("slashstartsregex")},
+			{`function\b`, KeywordDeclaration, Push("slashstartsregex")},
+			{`(atan2|cos|exp|int|log|rand|sin|sqrt|srand|gensub|gsub|index|length|match|split|sprintf|sub|substr|tolower|toupper|close|fflush|getline|next|nextfile|print|printf|strftime|systime|delete|system)\b`, KeywordReserved, nil},
+			{`(ARGC|ARGIND|ARGV|BEGIN|CONVFMT|ENVIRON|END|ERRNO|FIELDWIDTHS|FILENAME|FNR|FS|IGNORECASE|NF|NR|OFMT|OFS|ORFS|RLENGTH|RS|RSTART|RT|SUBSEP)\b`, NameBuiltin, nil},
+			{`[$a-zA-Z_]\w*`, NameOther, nil},
+			{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
+			{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
+		},
+	},
+))