/usr/share/gocode/src/github.com/alecthomas/chroma/lexers/a/antlr.go is in golang-github-alecthomas-chroma-dev 0.4.0+git20180402.51d250f-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 | package a
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// ANTLR lexer.
var ANTLR = internal.Register(MustNewLexer(
&Config{
Name: "ANTLR",
Aliases: []string{"antlr"},
Filenames: []string{},
MimeTypes: []string{},
},
Rules{
"whitespace": {
{`\s+`, TextWhitespace, nil},
},
"comments": {
{`//.*$`, Comment, nil},
{`/\*(.|\n)*?\*/`, Comment, nil},
},
"root": {
Include("whitespace"),
Include("comments"),
{`(lexer|parser|tree)?(\s*)(grammar\b)(\s*)([A-Za-z]\w*)(;)`, ByGroups(Keyword, TextWhitespace, Keyword, TextWhitespace, NameClass, Punctuation), nil},
{`options\b`, Keyword, Push("options")},
{`tokens\b`, Keyword, Push("tokens")},
{`(scope)(\s*)([A-Za-z]\w*)(\s*)(\{)`, ByGroups(Keyword, TextWhitespace, NameVariable, TextWhitespace, Punctuation), Push("action")},
{`(catch|finally)\b`, Keyword, Push("exception")},
{`(@[A-Za-z]\w*)(\s*)(::)?(\s*)([A-Za-z]\w*)(\s*)(\{)`, ByGroups(NameLabel, TextWhitespace, Punctuation, TextWhitespace, NameLabel, TextWhitespace, Punctuation), Push("action")},
{`((?:protected|private|public|fragment)\b)?(\s*)([A-Za-z]\w*)(!)?`, ByGroups(Keyword, TextWhitespace, NameLabel, Punctuation), Push("rule-alts", "rule-prelims")},
},
"exception": {
{`\n`, TextWhitespace, Pop(1)},
{`\s`, TextWhitespace, nil},
Include("comments"),
{`\[`, Punctuation, Push("nested-arg-action")},
{`\{`, Punctuation, Push("action")},
},
"rule-prelims": {
Include("whitespace"),
Include("comments"),
{`returns\b`, Keyword, nil},
{`\[`, Punctuation, Push("nested-arg-action")},
{`\{`, Punctuation, Push("action")},
{`(throws)(\s+)([A-Za-z]\w*)`, ByGroups(Keyword, TextWhitespace, NameLabel), nil},
{`(,)(\s*)([A-Za-z]\w*)`, ByGroups(Punctuation, TextWhitespace, NameLabel), nil},
{`options\b`, Keyword, Push("options")},
{`(scope)(\s+)(\{)`, ByGroups(Keyword, TextWhitespace, Punctuation), Push("action")},
{`(scope)(\s+)([A-Za-z]\w*)(\s*)(;)`, ByGroups(Keyword, TextWhitespace, NameLabel, TextWhitespace, Punctuation), nil},
{`(@[A-Za-z]\w*)(\s*)(\{)`, ByGroups(NameLabel, TextWhitespace, Punctuation), Push("action")},
{`:`, Punctuation, Pop(1)},
},
"rule-alts": {
Include("whitespace"),
Include("comments"),
{`options\b`, Keyword, Push("options")},
{`:`, Punctuation, nil},
{`'(\\\\|\\'|[^'])*'`, LiteralString, nil},
{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
{`<<([^>]|>[^>])>>`, LiteralString, nil},
{`\$?[A-Z_]\w*`, NameConstant, nil},
{`\$?[a-z_]\w*`, NameVariable, nil},
{`(\+|\||->|=>|=|\(|\)|\.\.|\.|\?|\*|\^|!|\#|~)`, Operator, nil},
{`,`, Punctuation, nil},
{`\[`, Punctuation, Push("nested-arg-action")},
{`\{`, Punctuation, Push("action")},
{`;`, Punctuation, Pop(1)},
},
"tokens": {
Include("whitespace"),
Include("comments"),
{`\{`, Punctuation, nil},
{`([A-Z]\w*)(\s*)(=)?(\s*)(\'(?:\\\\|\\\'|[^\']*)\')?(\s*)(;)`, ByGroups(NameLabel, TextWhitespace, Punctuation, TextWhitespace, LiteralString, TextWhitespace, Punctuation), nil},
{`\}`, Punctuation, Pop(1)},
},
"options": {
Include("whitespace"),
Include("comments"),
{`\{`, Punctuation, nil},
{`([A-Za-z]\w*)(\s*)(=)(\s*)([A-Za-z]\w*|\'(?:\\\\|\\\'|[^\']*)\'|[0-9]+|\*)(\s*)(;)`, ByGroups(NameVariable, TextWhitespace, Punctuation, TextWhitespace, Text, TextWhitespace, Punctuation), nil},
{`\}`, Punctuation, Pop(1)},
},
"action": {
{`([^${}\'"/\\]+|"(\\\\|\\"|[^"])*"|'(\\\\|\\'|[^'])*'|//.*$\n?|/\*(.|\n)*?\*/|/(?!\*)(\\\\|\\/|[^/])*/|\\(?!%)|/)+`, Other, nil},
{`(\\)(%)`, ByGroups(Punctuation, Other), nil},
{`(\$[a-zA-Z]+)(\.?)(text|value)?`, ByGroups(NameVariable, Punctuation, NameProperty), nil},
{`\{`, Punctuation, Push()},
{`\}`, Punctuation, Pop(1)},
},
"nested-arg-action": {
{`([^$\[\]\'"/]+|"(\\\\|\\"|[^"])*"|'(\\\\|\\'|[^'])*'|//.*$\n?|/\*(.|\n)*?\*/|/(?!\*)(\\\\|\\/|[^/])*/|/)+`, Other, nil},
{`\[`, Punctuation, Push()},
{`\]`, Punctuation, Pop(1)},
{`(\$[a-zA-Z]+)(\.?)(text|value)?`, ByGroups(NameVariable, Punctuation, NameProperty), nil},
{`(\\\\|\\\]|\\\[|[^\[\]])+`, Other, nil},
},
},
))
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