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139 lines
8.2 KiB
139 lines
8.2 KiB
4 years ago
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package p
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import (
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Perl lexer.
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var Perl = internal.Register(MustNewLexer(
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&Config{
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Name: "Perl",
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Aliases: []string{"perl", "pl"},
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Filenames: []string{"*.pl", "*.pm", "*.t"},
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MimeTypes: []string{"text/x-perl", "application/x-perl"},
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DotAll: true,
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},
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Rules{
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"balanced-regex": {
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{`/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*`, LiteralStringRegex, Pop(1)},
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{`!(\\\\|\\[^\\]|[^\\!])*![egimosx]*`, LiteralStringRegex, Pop(1)},
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{`\\(\\\\|[^\\])*\\[egimosx]*`, LiteralStringRegex, Pop(1)},
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{`\{(\\\\|\\[^\\]|[^\\}])*\}[egimosx]*`, LiteralStringRegex, Pop(1)},
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{`<(\\\\|\\[^\\]|[^\\>])*>[egimosx]*`, LiteralStringRegex, Pop(1)},
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{`\[(\\\\|\\[^\\]|[^\\\]])*\][egimosx]*`, LiteralStringRegex, Pop(1)},
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{`\((\\\\|\\[^\\]|[^\\)])*\)[egimosx]*`, LiteralStringRegex, Pop(1)},
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{`@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*`, LiteralStringRegex, Pop(1)},
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{`%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*`, LiteralStringRegex, Pop(1)},
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{`\$(\\\\|\\[^\\]|[^\\$])*\$[egimosx]*`, LiteralStringRegex, Pop(1)},
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},
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"root": {
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{`\A\#!.+?$`, CommentHashbang, nil},
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{`\#.*?$`, CommentSingle, nil},
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{`^=[a-zA-Z0-9]+\s+.*?\n=cut`, CommentMultiline, nil},
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{Words(``, `\b`, `case`, `continue`, `do`, `else`, `elsif`, `for`, `foreach`, `if`, `last`, `my`, `next`, `our`, `redo`, `reset`, `then`, `unless`, `until`, `while`, `print`, `new`, `BEGIN`, `CHECK`, `INIT`, `END`, `return`), Keyword, nil},
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{`(format)(\s+)(\w+)(\s*)(=)(\s*\n)`, ByGroups(Keyword, Text, Name, Text, Punctuation, Text), Push("format")},
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{`(eq|lt|gt|le|ge|ne|not|and|or|cmp)\b`, OperatorWord, nil},
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{`s/(\\\\|\\[^\\]|[^\\/])*/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*`, LiteralStringRegex, nil},
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{`s!(\\\\|\\!|[^!])*!(\\\\|\\!|[^!])*![egimosx]*`, LiteralStringRegex, nil},
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{`s\\(\\\\|[^\\])*\\(\\\\|[^\\])*\\[egimosx]*`, LiteralStringRegex, nil},
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{`s@(\\\\|\\[^\\]|[^\\@])*@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*`, LiteralStringRegex, nil},
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{`s%(\\\\|\\[^\\]|[^\\%])*%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*`, LiteralStringRegex, nil},
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{`s\{(\\\\|\\[^\\]|[^\\}])*\}\s*`, LiteralStringRegex, Push("balanced-regex")},
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{`s<(\\\\|\\[^\\]|[^\\>])*>\s*`, LiteralStringRegex, Push("balanced-regex")},
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{`s\[(\\\\|\\[^\\]|[^\\\]])*\]\s*`, LiteralStringRegex, Push("balanced-regex")},
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{`s\((\\\\|\\[^\\]|[^\\)])*\)\s*`, LiteralStringRegex, Push("balanced-regex")},
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{`m?/(\\\\|\\[^\\]|[^\\/\n])*/[gcimosx]*`, LiteralStringRegex, nil},
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{`m(?=[/!\\{<\[(@%$])`, LiteralStringRegex, Push("balanced-regex")},
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{`((?<==~)|(?<=\())\s*/(\\\\|\\[^\\]|[^\\/])*/[gcimosx]*`, LiteralStringRegex, nil},
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{`\s+`, Text, nil},
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{Words(``, `\b`, `abs`, `accept`, `alarm`, `atan2`, `bind`, `binmode`, `bless`, `caller`, `chdir`, `chmod`, `chomp`, `chop`, `chown`, `chr`, `chroot`, `close`, `closedir`, `connect`, `continue`, `cos`, `crypt`, `dbmclose`, `dbmopen`, `defined`, `delete`, `die`, `dump`, `each`, `endgrent`, `endhostent`, `endnetent`, `endprotoent`, `endpwent`, `endservent`, `eof`, `eval`, `exec`, `exists`, `exit`, `exp`, `fcntl`, `fileno`, `flock`, `fork`, `format`, `formline`, `getc`, `getgrent`, `getgrgid`, `getgrnam`, `gethostbyaddr`, `gethostbyname`, `gethostent`, `getlogin`, `getnetbyaddr`, `getnetbyname`, `getnetent`, `getpeername`, `getpgrp`, `getppid`, `getpriority`, `getprotobyname`, `getprotobynumber`, `getprotoent`, `getpwent`, `getpwnam`, `getpwuid`, `getservbyname`, `getservbyport`, `getservent`, `getsockname`, `getsockopt`, `glob`, `gmtime`, `goto`, `grep`, `hex`, `import`, `index`, `int`, `ioctl`, `join`, `keys`, `kill`, `last`, `lc`, `lcfirst`, `length`, `link`, `listen`, `local`, `localtime`, `log`, `lstat`, `map`, `mkdir`, `msgctl`, `msgget`, `msgrcv`, `msgsnd`, `my`, `next`, `oct`, `open`, `opendir`, `ord`, `our`, `pack`, `pipe`, `pop`, `pos`, `printf`, `prototype`, `push`, `quotemeta`, `rand`, `read`, `readdir`, `readline`, `readlink`, `readpipe`, `recv`, `redo`, `ref`, `rename`, `reverse`, `rewinddir`, `rindex`, `rmdir`, `scalar`, `seek`, `seekdir`, `select`, `semctl`, `semget`, `semop`, `send`, `setgrent`, `sethostent`, `setnetent`, `setpgrp`, `setpriority`, `setprotoent`, `setpwent`, `setservent`, `setsockopt`, `shift`, `shmctl`, `shmget`, `shmread`, `shmwrite`, `shutdown`, `sin`, `sleep`, `socket`, `socketpair`, `sort`, `splice`, `split`, `sprintf`, `sqrt`, `srand`, `stat`, `study`, `substr`, `symlink`, `syscall`, `sysopen`, `sysread`, `sysseek`, `system`, `syswrite`, `tell`, `telldir`, `tie`, `tied`, `time`, `times`, `tr`, `truncate`, `uc`, `ucfirst`, `umask`, `undef`, `unlink`, `unpack`, `unshift`, `untie`, `utime`, `values`, `vec`, `wait`, `waitpid`, `wantarray`, `warn`, `write`), NameBuiltin, nil},
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{`((__(DATA|DIE|WARN)__)|(STD(IN|OUT|ERR)))\b`, NameBuiltinPseudo, nil},
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{`(<<)([\'"]?)([a-zA-Z_]\w*)(\2;?\n.*?\n)(\3)(\n)`, ByGroups(LiteralString, LiteralString, LiteralStringDelimiter, LiteralString, LiteralStringDelimiter, Text), nil},
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{`__END__`, CommentPreproc, Push("end-part")},
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{`\$\^[ADEFHILMOPSTWX]`, NameVariableGlobal, nil},
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{"\\$[\\\\\\\"\\[\\]'&`+*.,;=%~?@$!<>(^|/-](?!\\w)", NameVariableGlobal, nil},
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{`[$@%#]+`, NameVariable, Push("varname")},
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{`0_?[0-7]+(_[0-7]+)*`, LiteralNumberOct, nil},
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{`0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*`, LiteralNumberHex, nil},
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{`0b[01]+(_[01]+)*`, LiteralNumberBin, nil},
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{`(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?`, LiteralNumberFloat, nil},
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{`(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*`, LiteralNumberFloat, nil},
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{`\d+(_\d+)*`, LiteralNumberInteger, nil},
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{`'(\\\\|\\[^\\]|[^'\\])*'`, LiteralString, nil},
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{`"(\\\\|\\[^\\]|[^"\\])*"`, LiteralString, nil},
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{"`(\\\\\\\\|\\\\[^\\\\]|[^`\\\\])*`", LiteralStringBacktick, nil},
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{`<([^\s>]+)>`, LiteralStringRegex, nil},
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{`(q|qq|qw|qr|qx)\{`, LiteralStringOther, Push("cb-string")},
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{`(q|qq|qw|qr|qx)\(`, LiteralStringOther, Push("rb-string")},
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{`(q|qq|qw|qr|qx)\[`, LiteralStringOther, Push("sb-string")},
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{`(q|qq|qw|qr|qx)\<`, LiteralStringOther, Push("lt-string")},
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{`(q|qq|qw|qr|qx)([\W_])(.|\n)*?\2`, LiteralStringOther, nil},
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{`(package)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)`, ByGroups(Keyword, Text, NameNamespace), nil},
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{`(use|require|no)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)`, ByGroups(Keyword, Text, NameNamespace), nil},
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{`(sub)(\s+)`, ByGroups(Keyword, Text), Push("funcname")},
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{Words(``, `\b`, `no`, `package`, `require`, `use`), Keyword, nil},
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{`(\[\]|\*\*|::|<<|>>|>=|<=>|<=|={3}|!=|=~|!~|&&?|\|\||\.{1,3})`, Operator, nil},
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{`[-+/*%=<>&^|!\\~]=?`, Operator, nil},
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{`[()\[\]:;,<>/?{}]`, Punctuation, nil},
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{`(?=\w)`, Name, Push("name")},
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},
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"format": {
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{`\.\n`, LiteralStringInterpol, Pop(1)},
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{`[^\n]*\n`, LiteralStringInterpol, nil},
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},
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"varname": {
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{`\s+`, Text, nil},
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{`\{`, Punctuation, Pop(1)},
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{`\)|,`, Punctuation, Pop(1)},
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{`\w+::`, NameNamespace, nil},
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{`[\w:]+`, NameVariable, Pop(1)},
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},
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"name": {
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{`[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*(::)?(?=\s*->)`, NameNamespace, Pop(1)},
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{`[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*::`, NameNamespace, Pop(1)},
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{`[\w:]+`, Name, Pop(1)},
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{`[A-Z_]+(?=\W)`, NameConstant, Pop(1)},
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{`(?=\W)`, Text, Pop(1)},
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},
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"funcname": {
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{`[a-zA-Z_]\w*[!?]?`, NameFunction, nil},
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{`\s+`, Text, nil},
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{`(\([$@%]*\))(\s*)`, ByGroups(Punctuation, Text), nil},
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{`;`, Punctuation, Pop(1)},
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{`.*?\{`, Punctuation, Pop(1)},
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},
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"cb-string": {
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{`\\[{}\\]`, LiteralStringOther, nil},
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{`\\`, LiteralStringOther, nil},
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{`\{`, LiteralStringOther, Push("cb-string")},
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{`\}`, LiteralStringOther, Pop(1)},
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{`[^{}\\]+`, LiteralStringOther, nil},
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},
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"rb-string": {
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{`\\[()\\]`, LiteralStringOther, nil},
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{`\\`, LiteralStringOther, nil},
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{`\(`, LiteralStringOther, Push("rb-string")},
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{`\)`, LiteralStringOther, Pop(1)},
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{`[^()]+`, LiteralStringOther, nil},
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},
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"sb-string": {
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{`\\[\[\]\\]`, LiteralStringOther, nil},
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{`\\`, LiteralStringOther, nil},
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{`\[`, LiteralStringOther, Push("sb-string")},
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{`\]`, LiteralStringOther, Pop(1)},
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{`[^\[\]]+`, LiteralStringOther, nil},
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},
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"lt-string": {
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{`\\[<>\\]`, LiteralStringOther, nil},
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{`\\`, LiteralStringOther, nil},
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{`\<`, LiteralStringOther, Push("lt-string")},
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{`\>`, LiteralStringOther, Pop(1)},
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{`[^<>]+`, LiteralStringOther, nil},
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},
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"end-part": {
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{`.+`, CommentPreproc, Pop(1)},
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},
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},
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))
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