Added lexars
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lexers
275
lexers/caddyfile.go
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275
lexers/caddyfile.go
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package lexers
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import (
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. "toastielab.dev/toastie-stuff/chroma/v2" // nolint
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)
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// Matcher token stub for docs, or
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// Named matcher: @name, or
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// Path matcher: /foo, or
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// Wildcard path matcher: *
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// nolint: gosec
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var caddyfileMatcherTokenRegexp = `(\[\<matcher\>\]|@[^\s]+|/[^\s]+|\*)`
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// Comment at start of line, or
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// Comment preceded by whitespace
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var caddyfileCommentRegexp = `(^|\s+)#.*\n`
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// caddyfileCommon are the rules common to both of the lexer variants
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func caddyfileCommonRules() Rules {
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return Rules{
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"site_block_common": {
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Include("site_body"),
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// Any other directive
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{`[^\s#]+`, Keyword, Push("directive")},
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Include("base"),
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},
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"site_body": {
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// Import keyword
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{`\b(import|invoke)\b( [^\s#]+)`, ByGroups(Keyword, Text), Push("subdirective")},
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// Matcher definition
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{`@[^\s]+(?=\s)`, NameDecorator, Push("matcher")},
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// Matcher token stub for docs
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{`\[\<matcher\>\]`, NameDecorator, Push("matcher")},
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// These cannot have matchers but may have things that look like
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// matchers in their arguments, so we just parse as a subdirective.
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{`\b(try_files|tls|log|bind)\b`, Keyword, Push("subdirective")},
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// These are special, they can nest more directives
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{`\b(handle_errors|handle_path|handle_response|replace_status|handle|route)\b`, Keyword, Push("nested_directive")},
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// uri directive has special syntax
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{`\b(uri)\b`, Keyword, Push("uri_directive")},
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},
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"matcher": {
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{`\{`, Punctuation, Push("block")},
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// Not can be one-liner
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{`not`, Keyword, Push("deep_not_matcher")},
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// Heredoc for CEL expression
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Include("heredoc"),
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// Backtick for CEL expression
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{"`", StringBacktick, Push("backticks")},
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// Any other same-line matcher
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{`[^\s#]+`, Keyword, Push("arguments")},
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// Terminators
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{`\s*\n`, Text, Pop(1)},
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{`\}`, Punctuation, Pop(1)},
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Include("base"),
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},
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"block": {
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{`\}`, Punctuation, Pop(2)},
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// Using double quotes doesn't stop at spaces
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{`"`, StringDouble, Push("double_quotes")},
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// Using backticks doesn't stop at spaces
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{"`", StringBacktick, Push("backticks")},
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// Not can be one-liner
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{`not`, Keyword, Push("not_matcher")},
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// Directives & matcher definitions
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Include("site_body"),
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// Any directive
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{`[^\s#]+`, Keyword, Push("subdirective")},
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Include("base"),
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},
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"nested_block": {
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{`\}`, Punctuation, Pop(2)},
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// Using double quotes doesn't stop at spaces
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{`"`, StringDouble, Push("double_quotes")},
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// Using backticks doesn't stop at spaces
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{"`", StringBacktick, Push("backticks")},
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// Not can be one-liner
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{`not`, Keyword, Push("not_matcher")},
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// Directives & matcher definitions
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Include("site_body"),
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// Any other subdirective
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{`[^\s#]+`, Keyword, Push("directive")},
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Include("base"),
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},
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"not_matcher": {
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{`\}`, Punctuation, Pop(2)},
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{`\{(?=\s)`, Punctuation, Push("block")},
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{`[^\s#]+`, Keyword, Push("arguments")},
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{`\s+`, Text, nil},
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},
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"deep_not_matcher": {
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{`\}`, Punctuation, Pop(2)},
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{`\{(?=\s)`, Punctuation, Push("block")},
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{`[^\s#]+`, Keyword, Push("deep_subdirective")},
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{`\s+`, Text, nil},
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},
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"directive": {
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{`\{(?=\s)`, Punctuation, Push("block")},
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{caddyfileMatcherTokenRegexp, NameDecorator, Push("arguments")},
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{caddyfileCommentRegexp, CommentSingle, Pop(1)},
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{`\s*\n`, Text, Pop(1)},
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Include("base"),
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},
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"nested_directive": {
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{`\{(?=\s)`, Punctuation, Push("nested_block")},
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{caddyfileMatcherTokenRegexp, NameDecorator, Push("nested_arguments")},
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{caddyfileCommentRegexp, CommentSingle, Pop(1)},
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{`\s*\n`, Text, Pop(1)},
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Include("base"),
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},
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"subdirective": {
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{`\{(?=\s)`, Punctuation, Push("block")},
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{caddyfileCommentRegexp, CommentSingle, Pop(1)},
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{`\s*\n`, Text, Pop(1)},
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Include("base"),
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},
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"arguments": {
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{`\{(?=\s)`, Punctuation, Push("block")},
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{caddyfileCommentRegexp, CommentSingle, Pop(2)},
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{`\\\n`, Text, nil}, // Skip escaped newlines
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{`\s*\n`, Text, Pop(2)},
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Include("base"),
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},
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"nested_arguments": {
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{`\{(?=\s)`, Punctuation, Push("nested_block")},
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{caddyfileCommentRegexp, CommentSingle, Pop(2)},
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{`\\\n`, Text, nil}, // Skip escaped newlines
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{`\s*\n`, Text, Pop(2)},
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Include("base"),
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},
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"deep_subdirective": {
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{`\{(?=\s)`, Punctuation, Push("block")},
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{caddyfileCommentRegexp, CommentSingle, Pop(3)},
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{`\s*\n`, Text, Pop(3)},
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Include("base"),
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},
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"uri_directive": {
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{`\{(?=\s)`, Punctuation, Push("block")},
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{caddyfileMatcherTokenRegexp, NameDecorator, nil},
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{`(strip_prefix|strip_suffix|replace|path_regexp)`, NameConstant, Push("arguments")},
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{caddyfileCommentRegexp, CommentSingle, Pop(1)},
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{`\s*\n`, Text, Pop(1)},
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Include("base"),
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},
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"double_quotes": {
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Include("placeholder"),
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{`\\"`, StringDouble, nil},
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{`[^"]`, StringDouble, nil},
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{`"`, StringDouble, Pop(1)},
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},
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"backticks": {
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Include("placeholder"),
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{"\\\\`", StringBacktick, nil},
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{"[^`]", StringBacktick, nil},
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{"`", StringBacktick, Pop(1)},
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},
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"optional": {
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// Docs syntax for showing optional parts with [ ]
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{`\[`, Punctuation, Push("optional")},
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Include("name_constants"),
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{`\|`, Punctuation, nil},
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{`[^\[\]\|]+`, String, nil},
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{`\]`, Punctuation, Pop(1)},
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},
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"heredoc": {
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{`(<<([a-zA-Z0-9_-]+))(\n(.*|\n)*)(\s*)(\2)`, ByGroups(StringHeredoc, nil, String, String, String, StringHeredoc), nil},
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},
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"name_constants": {
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{`\b(most_recently_modified|largest_size|smallest_size|first_exist|internal|disable_redirects|ignore_loaded_certs|disable_certs|private_ranges|first|last|before|after|on|off)\b(\||(?=\]|\s|$))`, ByGroups(NameConstant, Punctuation), nil},
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},
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"placeholder": {
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// Placeholder with dots, colon for default value, brackets for args[0:]
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{`\{[\w+.\[\]\:\$-]+\}`, StringEscape, nil},
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// Handle opening brackets with no matching closing one
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{`\{[^\}\s]*\b`, String, nil},
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},
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"base": {
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{caddyfileCommentRegexp, CommentSingle, nil},
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{`\[\<matcher\>\]`, NameDecorator, nil},
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Include("name_constants"),
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Include("heredoc"),
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{`(https?://)?([a-z0-9.-]+)(:)([0-9]+)([^\s]*)`, ByGroups(Name, Name, Punctuation, NumberInteger, Name), nil},
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{`\[`, Punctuation, Push("optional")},
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{"`", StringBacktick, Push("backticks")},
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{`"`, StringDouble, Push("double_quotes")},
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Include("placeholder"),
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{`[a-z-]+/[a-z-+]+`, String, nil},
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{`[0-9]+([smhdk]|ns|us|µs|ms)?\b`, NumberInteger, nil},
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{`[^\s\n#\{]+`, String, nil},
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{`/[^\s#]*`, Name, nil},
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{`\s+`, Text, nil},
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},
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}
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}
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// Caddyfile lexer.
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var Caddyfile = Register(MustNewLexer(
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&Config{
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Name: "Caddyfile",
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Aliases: []string{"caddyfile", "caddy"},
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Filenames: []string{"Caddyfile*"},
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MimeTypes: []string{},
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},
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caddyfileRules,
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))
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func caddyfileRules() Rules {
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return Rules{
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"root": {
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{caddyfileCommentRegexp, CommentSingle, nil},
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// Global options block
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{`^\s*(\{)\s*$`, ByGroups(Punctuation), Push("globals")},
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// Top level import
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{`(import)(\s+)([^\s]+)`, ByGroups(Keyword, Text, NameVariableMagic), nil},
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// Snippets
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{`(&?\([^\s#]+\))(\s*)(\{)`, ByGroups(NameVariableAnonymous, Text, Punctuation), Push("snippet")},
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// Site label
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{`[^#{(\s,]+`, GenericHeading, Push("label")},
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// Site label with placeholder
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{`\{[\w+.\[\]\:\$-]+\}`, StringEscape, Push("label")},
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{`\s+`, Text, nil},
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},
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"globals": {
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{`\}`, Punctuation, Pop(1)},
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// Global options are parsed as subdirectives (no matcher)
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{`[^\s#]+`, Keyword, Push("subdirective")},
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Include("base"),
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},
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"snippet": {
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{`\}`, Punctuation, Pop(1)},
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Include("site_body"),
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// Any other directive
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{`[^\s#]+`, Keyword, Push("directive")},
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Include("base"),
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},
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"label": {
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// Allow multiple labels, comma separated, newlines after
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// a comma means another label is coming
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{`,\s*\n?`, Text, nil},
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{` `, Text, nil},
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// Site label with placeholder
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Include("placeholder"),
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// Site label
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{`[^#{(\s,]+`, GenericHeading, nil},
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// Comment after non-block label (hack because comments end in \n)
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{`#.*\n`, CommentSingle, Push("site_block")},
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// Note: if \n, we'll never pop out of the site_block, it's valid
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{`\{(?=\s)|\n`, Punctuation, Push("site_block")},
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},
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"site_block": {
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{`\}`, Punctuation, Pop(2)},
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Include("site_block_common"),
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},
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}.Merge(caddyfileCommonRules())
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}
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// Caddyfile directive-only lexer.
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var CaddyfileDirectives = Register(MustNewLexer(
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&Config{
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Name: "Caddyfile Directives",
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Aliases: []string{"caddyfile-directives", "caddyfile-d", "caddy-d"},
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Filenames: []string{},
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MimeTypes: []string{},
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},
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caddyfileDirectivesRules,
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))
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func caddyfileDirectivesRules() Rules {
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return Rules{
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// Same as "site_block" in Caddyfile
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"root": {
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Include("site_block_common"),
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},
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}.Merge(caddyfileCommonRules())
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}
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