1 package p
2
3 import (
4 . "github.com/alecthomas/chroma"
5 "github.com/alecthomas/chroma/lexers/internal"
6 )
7
8
9 var Perl = internal.Register(MustNewLazyLexer(
10 &Config{
11 Name: "Perl",
12 Aliases: []string{"perl", "pl"},
13 Filenames: []string{"*.pl", "*.pm", "*.t"},
14 MimeTypes: []string{"text/x-perl", "application/x-perl"},
15 DotAll: true,
16 },
17 perlRules,
18 ))
19
20 func perlRules() Rules {
21 return Rules{
22 "balanced-regex": {
23 {`/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*`, LiteralStringRegex, Pop(1)},
24 {`!(\\\\|\\[^\\]|[^\\!])*![egimosx]*`, LiteralStringRegex, Pop(1)},
25 {`\\(\\\\|[^\\])*\\[egimosx]*`, LiteralStringRegex, Pop(1)},
26 {`\{(\\\\|\\[^\\]|[^\\}])*\}[egimosx]*`, LiteralStringRegex, Pop(1)},
27 {`<(\\\\|\\[^\\]|[^\\>])*>[egimosx]*`, LiteralStringRegex, Pop(1)},
28 {`\[(\\\\|\\[^\\]|[^\\\]])*\][egimosx]*`, LiteralStringRegex, Pop(1)},
29 {`\((\\\\|\\[^\\]|[^\\)])*\)[egimosx]*`, LiteralStringRegex, Pop(1)},
30 {`@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*`, LiteralStringRegex, Pop(1)},
31 {`%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*`, LiteralStringRegex, Pop(1)},
32 {`\$(\\\\|\\[^\\]|[^\\$])*\$[egimosx]*`, LiteralStringRegex, Pop(1)},
33 },
34 "root": {
35 {`\A\#!.+?$`, CommentHashbang, nil},
36 {`\#.*?$`, CommentSingle, nil},
37 {`^=[a-zA-Z0-9]+\s+.*?\n=cut`, CommentMultiline, nil},
38 {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},
39 {`(format)(\s+)(\w+)(\s*)(=)(\s*\n)`, ByGroups(Keyword, Text, Name, Text, Punctuation, Text), Push("format")},
40 {`(eq|lt|gt|le|ge|ne|not|and|or|cmp)\b`, OperatorWord, nil},
41 {`s/(\\\\|\\[^\\]|[^\\/])*/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*`, LiteralStringRegex, nil},
42 {`s!(\\\\|\\!|[^!])*!(\\\\|\\!|[^!])*![egimosx]*`, LiteralStringRegex, nil},
43 {`s\\(\\\\|[^\\])*\\(\\\\|[^\\])*\\[egimosx]*`, LiteralStringRegex, nil},
44 {`s@(\\\\|\\[^\\]|[^\\@])*@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*`, LiteralStringRegex, nil},
45 {`s%(\\\\|\\[^\\]|[^\\%])*%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*`, LiteralStringRegex, nil},
46 {`s\{(\\\\|\\[^\\]|[^\\}])*\}\s*`, LiteralStringRegex, Push("balanced-regex")},
47 {`s<(\\\\|\\[^\\]|[^\\>])*>\s*`, LiteralStringRegex, Push("balanced-regex")},
48 {`s\[(\\\\|\\[^\\]|[^\\\]])*\]\s*`, LiteralStringRegex, Push("balanced-regex")},
49 {`s\((\\\\|\\[^\\]|[^\\)])*\)\s*`, LiteralStringRegex, Push("balanced-regex")},
50 {`m?/(\\\\|\\[^\\]|[^\\/\n])*/[gcimosx]*`, LiteralStringRegex, nil},
51 {`m(?=[/!\\{<\[(@%$])`, LiteralStringRegex, Push("balanced-regex")},
52 {`((?<==~)|(?<=\())\s*/(\\\\|\\[^\\]|[^\\/])*/[gcimosx]*`, LiteralStringRegex, nil},
53 {`\s+`, Text, nil},
54 {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},
55 {`((__(DATA|DIE|WARN)__)|(STD(IN|OUT|ERR)))\b`, NameBuiltinPseudo, nil},
56 {`(<<)([\'"]?)([a-zA-Z_]\w*)(\2;?\n.*?\n)(\3)(\n)`, ByGroups(LiteralString, LiteralString, LiteralStringDelimiter, LiteralString, LiteralStringDelimiter, Text), nil},
57 {`__END__`, CommentPreproc, Push("end-part")},
58 {`\$\^[ADEFHILMOPSTWX]`, NameVariableGlobal, nil},
59 {"\\$[\\\\\\\"\\[\\]'&`+*.,;=%~?@$!<>(^|/-](?!\\w)", NameVariableGlobal, nil},
60 {`[$@%#]+`, NameVariable, Push("varname")},
61 {`0_?[0-7]+(_[0-7]+)*`, LiteralNumberOct, nil},
62 {`0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*`, LiteralNumberHex, nil},
63 {`0b[01]+(_[01]+)*`, LiteralNumberBin, nil},
64 {`(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?`, LiteralNumberFloat, nil},
65 {`(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*`, LiteralNumberFloat, nil},
66 {`\d+(_\d+)*`, LiteralNumberInteger, nil},
67 {`'(\\\\|\\[^\\]|[^'\\])*'`, LiteralString, nil},
68 {`"(\\\\|\\[^\\]|[^"\\])*"`, LiteralString, nil},
69 {"`(\\\\\\\\|\\\\[^\\\\]|[^`\\\\])*`", LiteralStringBacktick, nil},
70 {`<([^\s>]+)>`, LiteralStringRegex, nil},
71 {`(q|qq|qw|qr|qx)\{`, LiteralStringOther, Push("cb-string")},
72 {`(q|qq|qw|qr|qx)\(`, LiteralStringOther, Push("rb-string")},
73 {`(q|qq|qw|qr|qx)\[`, LiteralStringOther, Push("sb-string")},
74 {`(q|qq|qw|qr|qx)\<`, LiteralStringOther, Push("lt-string")},
75 {`(q|qq|qw|qr|qx)([\W_])(.|\n)*?\2`, LiteralStringOther, nil},
76 {`(package)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)`, ByGroups(Keyword, Text, NameNamespace), nil},
77 {`(use|require|no)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)`, ByGroups(Keyword, Text, NameNamespace), nil},
78 {`(sub)(\s+)`, ByGroups(Keyword, Text), Push("funcname")},
79 {Words(``, `\b`, `no`, `package`, `require`, `use`), Keyword, nil},
80 {`(\[\]|\*\*|::|<<|>>|>=|<=>|<=|={3}|!=|=~|!~|&&?|\|\||\.{1,3})`, Operator, nil},
81 {`[-+/*%=<>&^|!\\~]=?`, Operator, nil},
82 {`[()\[\]:;,<>/?{}]`, Punctuation, nil},
83 {`(?=\w)`, Name, Push("name")},
84 },
85 "format": {
86 {`\.\n`, LiteralStringInterpol, Pop(1)},
87 {`[^\n]*\n`, LiteralStringInterpol, nil},
88 },
89 "varname": {
90 {`\s+`, Text, nil},
91 {`\{`, Punctuation, Pop(1)},
92 {`\)|,`, Punctuation, Pop(1)},
93 {`\w+::`, NameNamespace, nil},
94 {`[\w:]+`, NameVariable, Pop(1)},
95 },
96 "name": {
97 {`[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*(::)?(?=\s*->)`, NameNamespace, Pop(1)},
98 {`[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*::`, NameNamespace, Pop(1)},
99 {`[\w:]+`, Name, Pop(1)},
100 {`[A-Z_]+(?=\W)`, NameConstant, Pop(1)},
101 {`(?=\W)`, Text, Pop(1)},
102 },
103 "funcname": {
104 {`[a-zA-Z_]\w*[!?]?`, NameFunction, nil},
105 {`\s+`, Text, nil},
106 {`(\([$@%]*\))(\s*)`, ByGroups(Punctuation, Text), nil},
107 {`;`, Punctuation, Pop(1)},
108 {`.*?\{`, Punctuation, Pop(1)},
109 },
110 "cb-string": {
111 {`\\[{}\\]`, LiteralStringOther, nil},
112 {`\\`, LiteralStringOther, nil},
113 {`\{`, LiteralStringOther, Push("cb-string")},
114 {`\}`, LiteralStringOther, Pop(1)},
115 {`[^{}\\]+`, LiteralStringOther, nil},
116 },
117 "rb-string": {
118 {`\\[()\\]`, LiteralStringOther, nil},
119 {`\\`, LiteralStringOther, nil},
120 {`\(`, LiteralStringOther, Push("rb-string")},
121 {`\)`, LiteralStringOther, Pop(1)},
122 {`[^()]+`, LiteralStringOther, nil},
123 },
124 "sb-string": {
125 {`\\[\[\]\\]`, LiteralStringOther, nil},
126 {`\\`, LiteralStringOther, nil},
127 {`\[`, LiteralStringOther, Push("sb-string")},
128 {`\]`, LiteralStringOther, Pop(1)},
129 {`[^\[\]]+`, LiteralStringOther, nil},
130 },
131 "lt-string": {
132 {`\\[<>\\]`, LiteralStringOther, nil},
133 {`\\`, LiteralStringOther, nil},
134 {`\<`, LiteralStringOther, Push("lt-string")},
135 {`\>`, LiteralStringOther, Pop(1)},
136 {`[^<>]+`, LiteralStringOther, nil},
137 },
138 "end-part": {
139 {`.+`, CommentPreproc, Pop(1)},
140 },
141 }
142 }
143
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