scripts/CodeMirror/mode/perl/perl.js (view raw)
1// CodeMirror, copyright (c) by Marijn Haverbeke and others
2// Distributed under an MIT license: https://codemirror.net/LICENSE
3
4// CodeMirror2 mode/perl/perl.js (text/x-perl) beta 0.10 (2011-11-08)
5// This is a part of CodeMirror from https://github.com/sabaca/CodeMirror_mode_perl (mail@sabaca.com)
6
7(function(mod) {
8 if (typeof exports == "object" && typeof module == "object") // CommonJS
9 mod(require("../../lib/codemirror"));
10 else if (typeof define == "function" && define.amd) // AMD
11 define(["../../lib/codemirror"], mod);
12 else // Plain browser env
13 mod(CodeMirror);
14})(function(CodeMirror) {
15"use strict";
16
17CodeMirror.defineMode("perl",function(){
18 // http://perldoc.perl.org
19 var PERL={ // null - magic touch
20 // 1 - keyword
21 // 2 - def
22 // 3 - atom
23 // 4 - operator
24 // 5 - variable-2 (predefined)
25 // [x,y] - x=1,2,3; y=must be defined if x{...}
26 // PERL operators
27 '->' : 4,
28 '++' : 4,
29 '--' : 4,
30 '**' : 4,
31 // ! ~ \ and unary + and -
32 '=~' : 4,
33 '!~' : 4,
34 '*' : 4,
35 '/' : 4,
36 '%' : 4,
37 'x' : 4,
38 '+' : 4,
39 '-' : 4,
40 '.' : 4,
41 '<<' : 4,
42 '>>' : 4,
43 // named unary operators
44 '<' : 4,
45 '>' : 4,
46 '<=' : 4,
47 '>=' : 4,
48 'lt' : 4,
49 'gt' : 4,
50 'le' : 4,
51 'ge' : 4,
52 '==' : 4,
53 '!=' : 4,
54 '<=>' : 4,
55 'eq' : 4,
56 'ne' : 4,
57 'cmp' : 4,
58 '~~' : 4,
59 '&' : 4,
60 '|' : 4,
61 '^' : 4,
62 '&&' : 4,
63 '||' : 4,
64 '//' : 4,
65 '..' : 4,
66 '...' : 4,
67 '?' : 4,
68 ':' : 4,
69 '=' : 4,
70 '+=' : 4,
71 '-=' : 4,
72 '*=' : 4, // etc. ???
73 ',' : 4,
74 '=>' : 4,
75 '::' : 4,
76 // list operators (rightward)
77 'not' : 4,
78 'and' : 4,
79 'or' : 4,
80 'xor' : 4,
81 // PERL predefined variables (I know, what this is a paranoid idea, but may be needed for people, who learn PERL, and for me as well, ...and may be for you?;)
82 'BEGIN' : [5,1],
83 'END' : [5,1],
84 'PRINT' : [5,1],
85 'PRINTF' : [5,1],
86 'GETC' : [5,1],
87 'READ' : [5,1],
88 'READLINE' : [5,1],
89 'DESTROY' : [5,1],
90 'TIE' : [5,1],
91 'TIEHANDLE' : [5,1],
92 'UNTIE' : [5,1],
93 'STDIN' : 5,
94 'STDIN_TOP' : 5,
95 'STDOUT' : 5,
96 'STDOUT_TOP' : 5,
97 'STDERR' : 5,
98 'STDERR_TOP' : 5,
99 '$ARG' : 5,
100 '$_' : 5,
101 '@ARG' : 5,
102 '@_' : 5,
103 '$LIST_SEPARATOR' : 5,
104 '$"' : 5,
105 '$PROCESS_ID' : 5,
106 '$PID' : 5,
107 '$$' : 5,
108 '$REAL_GROUP_ID' : 5,
109 '$GID' : 5,
110 '$(' : 5,
111 '$EFFECTIVE_GROUP_ID' : 5,
112 '$EGID' : 5,
113 '$)' : 5,
114 '$PROGRAM_NAME' : 5,
115 '$0' : 5,
116 '$SUBSCRIPT_SEPARATOR' : 5,
117 '$SUBSEP' : 5,
118 '$;' : 5,
119 '$REAL_USER_ID' : 5,
120 '$UID' : 5,
121 '$<' : 5,
122 '$EFFECTIVE_USER_ID' : 5,
123 '$EUID' : 5,
124 '$>' : 5,
125 '$a' : 5,
126 '$b' : 5,
127 '$COMPILING' : 5,
128 '$^C' : 5,
129 '$DEBUGGING' : 5,
130 '$^D' : 5,
131 '${^ENCODING}' : 5,
132 '$ENV' : 5,
133 '%ENV' : 5,
134 '$SYSTEM_FD_MAX' : 5,
135 '$^F' : 5,
136 '@F' : 5,
137 '${^GLOBAL_PHASE}' : 5,
138 '$^H' : 5,
139 '%^H' : 5,
140 '@INC' : 5,
141 '%INC' : 5,
142 '$INPLACE_EDIT' : 5,
143 '$^I' : 5,
144 '$^M' : 5,
145 '$OSNAME' : 5,
146 '$^O' : 5,
147 '${^OPEN}' : 5,
148 '$PERLDB' : 5,
149 '$^P' : 5,
150 '$SIG' : 5,
151 '%SIG' : 5,
152 '$BASETIME' : 5,
153 '$^T' : 5,
154 '${^TAINT}' : 5,
155 '${^UNICODE}' : 5,
156 '${^UTF8CACHE}' : 5,
157 '${^UTF8LOCALE}' : 5,
158 '$PERL_VERSION' : 5,
159 '$^V' : 5,
160 '${^WIN32_SLOPPY_STAT}' : 5,
161 '$EXECUTABLE_NAME' : 5,
162 '$^X' : 5,
163 '$1' : 5, // - regexp $1, $2...
164 '$MATCH' : 5,
165 '$&' : 5,
166 '${^MATCH}' : 5,
167 '$PREMATCH' : 5,
168 '$`' : 5,
169 '${^PREMATCH}' : 5,
170 '$POSTMATCH' : 5,
171 "$'" : 5,
172 '${^POSTMATCH}' : 5,
173 '$LAST_PAREN_MATCH' : 5,
174 '$+' : 5,
175 '$LAST_SUBMATCH_RESULT' : 5,
176 '$^N' : 5,
177 '@LAST_MATCH_END' : 5,
178 '@+' : 5,
179 '%LAST_PAREN_MATCH' : 5,
180 '%+' : 5,
181 '@LAST_MATCH_START' : 5,
182 '@-' : 5,
183 '%LAST_MATCH_START' : 5,
184 '%-' : 5,
185 '$LAST_REGEXP_CODE_RESULT' : 5,
186 '$^R' : 5,
187 '${^RE_DEBUG_FLAGS}' : 5,
188 '${^RE_TRIE_MAXBUF}' : 5,
189 '$ARGV' : 5,
190 '@ARGV' : 5,
191 'ARGV' : 5,
192 'ARGVOUT' : 5,
193 '$OUTPUT_FIELD_SEPARATOR' : 5,
194 '$OFS' : 5,
195 '$,' : 5,
196 '$INPUT_LINE_NUMBER' : 5,
197 '$NR' : 5,
198 '$.' : 5,
199 '$INPUT_RECORD_SEPARATOR' : 5,
200 '$RS' : 5,
201 '$/' : 5,
202 '$OUTPUT_RECORD_SEPARATOR' : 5,
203 '$ORS' : 5,
204 '$\\' : 5,
205 '$OUTPUT_AUTOFLUSH' : 5,
206 '$|' : 5,
207 '$ACCUMULATOR' : 5,
208 '$^A' : 5,
209 '$FORMAT_FORMFEED' : 5,
210 '$^L' : 5,
211 '$FORMAT_PAGE_NUMBER' : 5,
212 '$%' : 5,
213 '$FORMAT_LINES_LEFT' : 5,
214 '$-' : 5,
215 '$FORMAT_LINE_BREAK_CHARACTERS' : 5,
216 '$:' : 5,
217 '$FORMAT_LINES_PER_PAGE' : 5,
218 '$=' : 5,
219 '$FORMAT_TOP_NAME' : 5,
220 '$^' : 5,
221 '$FORMAT_NAME' : 5,
222 '$~' : 5,
223 '${^CHILD_ERROR_NATIVE}' : 5,
224 '$EXTENDED_OS_ERROR' : 5,
225 '$^E' : 5,
226 '$EXCEPTIONS_BEING_CAUGHT' : 5,
227 '$^S' : 5,
228 '$WARNING' : 5,
229 '$^W' : 5,
230 '${^WARNING_BITS}' : 5,
231 '$OS_ERROR' : 5,
232 '$ERRNO' : 5,
233 '$!' : 5,
234 '%OS_ERROR' : 5,
235 '%ERRNO' : 5,
236 '%!' : 5,
237 '$CHILD_ERROR' : 5,
238 '$?' : 5,
239 '$EVAL_ERROR' : 5,
240 '$@' : 5,
241 '$OFMT' : 5,
242 '$#' : 5,
243 '$*' : 5,
244 '$ARRAY_BASE' : 5,
245 '$[' : 5,
246 '$OLD_PERL_VERSION' : 5,
247 '$]' : 5,
248 // PERL blocks
249 'if' :[1,1],
250 elsif :[1,1],
251 'else' :[1,1],
252 'while' :[1,1],
253 unless :[1,1],
254 'for' :[1,1],
255 foreach :[1,1],
256 // PERL functions
257 'abs' :1, // - absolute value function
258 accept :1, // - accept an incoming socket connect
259 alarm :1, // - schedule a SIGALRM
260 'atan2' :1, // - arctangent of Y/X in the range -PI to PI
261 bind :1, // - binds an address to a socket
262 binmode :1, // - prepare binary files for I/O
263 bless :1, // - create an object
264 bootstrap :1, //
265 'break' :1, // - break out of a "given" block
266 caller :1, // - get context of the current subroutine call
267 chdir :1, // - change your current working directory
268 chmod :1, // - changes the permissions on a list of files
269 chomp :1, // - remove a trailing record separator from a string
270 chop :1, // - remove the last character from a string
271 chown :1, // - change the ownership on a list of files
272 chr :1, // - get character this number represents
273 chroot :1, // - make directory new root for path lookups
274 close :1, // - close file (or pipe or socket) handle
275 closedir :1, // - close directory handle
276 connect :1, // - connect to a remote socket
277 'continue' :[1,1], // - optional trailing block in a while or foreach
278 'cos' :1, // - cosine function
279 crypt :1, // - one-way passwd-style encryption
280 dbmclose :1, // - breaks binding on a tied dbm file
281 dbmopen :1, // - create binding on a tied dbm file
282 'default' :1, //
283 defined :1, // - test whether a value, variable, or function is defined
284 'delete' :1, // - deletes a value from a hash
285 die :1, // - raise an exception or bail out
286 'do' :1, // - turn a BLOCK into a TERM
287 dump :1, // - create an immediate core dump
288 each :1, // - retrieve the next key/value pair from a hash
289 endgrent :1, // - be done using group file
290 endhostent :1, // - be done using hosts file
291 endnetent :1, // - be done using networks file
292 endprotoent :1, // - be done using protocols file
293 endpwent :1, // - be done using passwd file
294 endservent :1, // - be done using services file
295 eof :1, // - test a filehandle for its end
296 'eval' :1, // - catch exceptions or compile and run code
297 'exec' :1, // - abandon this program to run another
298 exists :1, // - test whether a hash key is present
299 exit :1, // - terminate this program
300 'exp' :1, // - raise I to a power
301 fcntl :1, // - file control system call
302 fileno :1, // - return file descriptor from filehandle
303 flock :1, // - lock an entire file with an advisory lock
304 fork :1, // - create a new process just like this one
305 format :1, // - declare a picture format with use by the write() function
306 formline :1, // - internal function used for formats
307 getc :1, // - get the next character from the filehandle
308 getgrent :1, // - get next group record
309 getgrgid :1, // - get group record given group user ID
310 getgrnam :1, // - get group record given group name
311 gethostbyaddr :1, // - get host record given its address
312 gethostbyname :1, // - get host record given name
313 gethostent :1, // - get next hosts record
314 getlogin :1, // - return who logged in at this tty
315 getnetbyaddr :1, // - get network record given its address
316 getnetbyname :1, // - get networks record given name
317 getnetent :1, // - get next networks record
318 getpeername :1, // - find the other end of a socket connection
319 getpgrp :1, // - get process group
320 getppid :1, // - get parent process ID
321 getpriority :1, // - get current nice value
322 getprotobyname :1, // - get protocol record given name
323 getprotobynumber :1, // - get protocol record numeric protocol
324 getprotoent :1, // - get next protocols record
325 getpwent :1, // - get next passwd record
326 getpwnam :1, // - get passwd record given user login name
327 getpwuid :1, // - get passwd record given user ID
328 getservbyname :1, // - get services record given its name
329 getservbyport :1, // - get services record given numeric port
330 getservent :1, // - get next services record
331 getsockname :1, // - retrieve the sockaddr for a given socket
332 getsockopt :1, // - get socket options on a given socket
333 given :1, //
334 glob :1, // - expand filenames using wildcards
335 gmtime :1, // - convert UNIX time into record or string using Greenwich time
336 'goto' :1, // - create spaghetti code
337 grep :1, // - locate elements in a list test true against a given criterion
338 hex :1, // - convert a string to a hexadecimal number
339 'import' :1, // - patch a module's namespace into your own
340 index :1, // - find a substring within a string
341 'int' :1, // - get the integer portion of a number
342 ioctl :1, // - system-dependent device control system call
343 'join' :1, // - join a list into a string using a separator
344 keys :1, // - retrieve list of indices from a hash
345 kill :1, // - send a signal to a process or process group
346 last :1, // - exit a block prematurely
347 lc :1, // - return lower-case version of a string
348 lcfirst :1, // - return a string with just the next letter in lower case
349 length :1, // - return the number of bytes in a string
350 'link' :1, // - create a hard link in the filesytem
351 listen :1, // - register your socket as a server
352 local : 2, // - create a temporary value for a global variable (dynamic scoping)
353 localtime :1, // - convert UNIX time into record or string using local time
354 lock :1, // - get a thread lock on a variable, subroutine, or method
355 'log' :1, // - retrieve the natural logarithm for a number
356 lstat :1, // - stat a symbolic link
357 m :null, // - match a string with a regular expression pattern
358 map :1, // - apply a change to a list to get back a new list with the changes
359 mkdir :1, // - create a directory
360 msgctl :1, // - SysV IPC message control operations
361 msgget :1, // - get SysV IPC message queue
362 msgrcv :1, // - receive a SysV IPC message from a message queue
363 msgsnd :1, // - send a SysV IPC message to a message queue
364 my : 2, // - declare and assign a local variable (lexical scoping)
365 'new' :1, //
366 next :1, // - iterate a block prematurely
367 no :1, // - unimport some module symbols or semantics at compile time
368 oct :1, // - convert a string to an octal number
369 open :1, // - open a file, pipe, or descriptor
370 opendir :1, // - open a directory
371 ord :1, // - find a character's numeric representation
372 our : 2, // - declare and assign a package variable (lexical scoping)
373 pack :1, // - convert a list into a binary representation
374 'package' :1, // - declare a separate global namespace
375 pipe :1, // - open a pair of connected filehandles
376 pop :1, // - remove the last element from an array and return it
377 pos :1, // - find or set the offset for the last/next m//g search
378 print :1, // - output a list to a filehandle
379 printf :1, // - output a formatted list to a filehandle
380 prototype :1, // - get the prototype (if any) of a subroutine
381 push :1, // - append one or more elements to an array
382 q :null, // - singly quote a string
383 qq :null, // - doubly quote a string
384 qr :null, // - Compile pattern
385 quotemeta :null, // - quote regular expression magic characters
386 qw :null, // - quote a list of words
387 qx :null, // - backquote quote a string
388 rand :1, // - retrieve the next pseudorandom number
389 read :1, // - fixed-length buffered input from a filehandle
390 readdir :1, // - get a directory from a directory handle
391 readline :1, // - fetch a record from a file
392 readlink :1, // - determine where a symbolic link is pointing
393 readpipe :1, // - execute a system command and collect standard output
394 recv :1, // - receive a message over a Socket
395 redo :1, // - start this loop iteration over again
396 ref :1, // - find out the type of thing being referenced
397 rename :1, // - change a filename
398 require :1, // - load in external functions from a library at runtime
399 reset :1, // - clear all variables of a given name
400 'return' :1, // - get out of a function early
401 reverse :1, // - flip a string or a list
402 rewinddir :1, // - reset directory handle
403 rindex :1, // - right-to-left substring search
404 rmdir :1, // - remove a directory
405 s :null, // - replace a pattern with a string
406 say :1, // - print with newline
407 scalar :1, // - force a scalar context
408 seek :1, // - reposition file pointer for random-access I/O
409 seekdir :1, // - reposition directory pointer
410 select :1, // - reset default output or do I/O multiplexing
411 semctl :1, // - SysV semaphore control operations
412 semget :1, // - get set of SysV semaphores
413 semop :1, // - SysV semaphore operations
414 send :1, // - send a message over a socket
415 setgrent :1, // - prepare group file for use
416 sethostent :1, // - prepare hosts file for use
417 setnetent :1, // - prepare networks file for use
418 setpgrp :1, // - set the process group of a process
419 setpriority :1, // - set a process's nice value
420 setprotoent :1, // - prepare protocols file for use
421 setpwent :1, // - prepare passwd file for use
422 setservent :1, // - prepare services file for use
423 setsockopt :1, // - set some socket options
424 shift :1, // - remove the first element of an array, and return it
425 shmctl :1, // - SysV shared memory operations
426 shmget :1, // - get SysV shared memory segment identifier
427 shmread :1, // - read SysV shared memory
428 shmwrite :1, // - write SysV shared memory
429 shutdown :1, // - close down just half of a socket connection
430 'sin' :1, // - return the sine of a number
431 sleep :1, // - block for some number of seconds
432 socket :1, // - create a socket
433 socketpair :1, // - create a pair of sockets
434 'sort' :1, // - sort a list of values
435 splice :1, // - add or remove elements anywhere in an array
436 'split' :1, // - split up a string using a regexp delimiter
437 sprintf :1, // - formatted print into a string
438 'sqrt' :1, // - square root function
439 srand :1, // - seed the random number generator
440 stat :1, // - get a file's status information
441 state :1, // - declare and assign a state variable (persistent lexical scoping)
442 study :1, // - optimize input data for repeated searches
443 'sub' :1, // - declare a subroutine, possibly anonymously
444 'substr' :1, // - get or alter a portion of a stirng
445 symlink :1, // - create a symbolic link to a file
446 syscall :1, // - execute an arbitrary system call
447 sysopen :1, // - open a file, pipe, or descriptor
448 sysread :1, // - fixed-length unbuffered input from a filehandle
449 sysseek :1, // - position I/O pointer on handle used with sysread and syswrite
450 system :1, // - run a separate program
451 syswrite :1, // - fixed-length unbuffered output to a filehandle
452 tell :1, // - get current seekpointer on a filehandle
453 telldir :1, // - get current seekpointer on a directory handle
454 tie :1, // - bind a variable to an object class
455 tied :1, // - get a reference to the object underlying a tied variable
456 time :1, // - return number of seconds since 1970
457 times :1, // - return elapsed time for self and child processes
458 tr :null, // - transliterate a string
459 truncate :1, // - shorten a file
460 uc :1, // - return upper-case version of a string
461 ucfirst :1, // - return a string with just the next letter in upper case
462 umask :1, // - set file creation mode mask
463 undef :1, // - remove a variable or function definition
464 unlink :1, // - remove one link to a file
465 unpack :1, // - convert binary structure into normal perl variables
466 unshift :1, // - prepend more elements to the beginning of a list
467 untie :1, // - break a tie binding to a variable
468 use :1, // - load in a module at compile time
469 utime :1, // - set a file's last access and modify times
470 values :1, // - return a list of the values in a hash
471 vec :1, // - test or set particular bits in a string
472 wait :1, // - wait for any child process to die
473 waitpid :1, // - wait for a particular child process to die
474 wantarray :1, // - get void vs scalar vs list context of current subroutine call
475 warn :1, // - print debugging info
476 when :1, //
477 write :1, // - print a picture record
478 y :null}; // - transliterate a string
479
480 var RXstyle="string-2";
481 var RXmodifiers=/[goseximacplud]/; // NOTE: "m", "s", "y" and "tr" need to correct real modifiers for each regexp type
482
483 function tokenChain(stream,state,chain,style,tail){ // NOTE: chain.length > 2 is not working now (it's for s[...][...]geos;)
484 state.chain=null; // 12 3tail
485 state.style=null;
486 state.tail=null;
487 state.tokenize=function(stream,state){
488 var e=false,c,i=0;
489 while(c=stream.next()){
490 if(c===chain[i]&&!e){
491 if(chain[++i]!==undefined){
492 state.chain=chain[i];
493 state.style=style;
494 state.tail=tail;}
495 else if(tail)
496 stream.eatWhile(tail);
497 state.tokenize=tokenPerl;
498 return style;}
499 e=!e&&c=="\\";}
500 return style;};
501 return state.tokenize(stream,state);}
502
503 function tokenSOMETHING(stream,state,string){
504 state.tokenize=function(stream,state){
505 if(stream.string==string)
506 state.tokenize=tokenPerl;
507 stream.skipToEnd();
508 return "string";};
509 return state.tokenize(stream,state);}
510
511 function tokenPerl(stream,state){
512 if(stream.eatSpace())
513 return null;
514 if(state.chain)
515 return tokenChain(stream,state,state.chain,state.style,state.tail);
516 if(stream.match(/^\-?[\d\.]/,false))
517 if(stream.match(/^(\-?(\d*\.\d+(e[+-]?\d+)?|\d+\.\d*)|0x[\da-fA-F]+|0b[01]+|\d+(e[+-]?\d+)?)/))
518 return 'number';
519 if(stream.match(/^<<(?=\w)/)){ // NOTE: <<SOMETHING\n...\nSOMETHING\n
520 stream.eatWhile(/\w/);
521 return tokenSOMETHING(stream,state,stream.current().substr(2));}
522 if(stream.sol()&&stream.match(/^\=item(?!\w)/)){// NOTE: \n=item...\n=cut\n
523 return tokenSOMETHING(stream,state,'=cut');}
524 var ch=stream.next();
525 if(ch=='"'||ch=="'"){ // NOTE: ' or " or <<'SOMETHING'\n...\nSOMETHING\n or <<"SOMETHING"\n...\nSOMETHING\n
526 if(prefix(stream, 3)=="<<"+ch){
527 var p=stream.pos;
528 stream.eatWhile(/\w/);
529 var n=stream.current().substr(1);
530 if(n&&stream.eat(ch))
531 return tokenSOMETHING(stream,state,n);
532 stream.pos=p;}
533 return tokenChain(stream,state,[ch],"string");}
534 if(ch=="q"){
535 var c=look(stream, -2);
536 if(!(c&&/\w/.test(c))){
537 c=look(stream, 0);
538 if(c=="x"){
539 c=look(stream, 1);
540 if(c=="("){
541 eatSuffix(stream, 2);
542 return tokenChain(stream,state,[")"],RXstyle,RXmodifiers);}
543 if(c=="["){
544 eatSuffix(stream, 2);
545 return tokenChain(stream,state,["]"],RXstyle,RXmodifiers);}
546 if(c=="{"){
547 eatSuffix(stream, 2);
548 return tokenChain(stream,state,["}"],RXstyle,RXmodifiers);}
549 if(c=="<"){
550 eatSuffix(stream, 2);
551 return tokenChain(stream,state,[">"],RXstyle,RXmodifiers);}
552 if(/[\^'"!~\/]/.test(c)){
553 eatSuffix(stream, 1);
554 return tokenChain(stream,state,[stream.eat(c)],RXstyle,RXmodifiers);}}
555 else if(c=="q"){
556 c=look(stream, 1);
557 if(c=="("){
558 eatSuffix(stream, 2);
559 return tokenChain(stream,state,[")"],"string");}
560 if(c=="["){
561 eatSuffix(stream, 2);
562 return tokenChain(stream,state,["]"],"string");}
563 if(c=="{"){
564 eatSuffix(stream, 2);
565 return tokenChain(stream,state,["}"],"string");}
566 if(c=="<"){
567 eatSuffix(stream, 2);
568 return tokenChain(stream,state,[">"],"string");}
569 if(/[\^'"!~\/]/.test(c)){
570 eatSuffix(stream, 1);
571 return tokenChain(stream,state,[stream.eat(c)],"string");}}
572 else if(c=="w"){
573 c=look(stream, 1);
574 if(c=="("){
575 eatSuffix(stream, 2);
576 return tokenChain(stream,state,[")"],"bracket");}
577 if(c=="["){
578 eatSuffix(stream, 2);
579 return tokenChain(stream,state,["]"],"bracket");}
580 if(c=="{"){
581 eatSuffix(stream, 2);
582 return tokenChain(stream,state,["}"],"bracket");}
583 if(c=="<"){
584 eatSuffix(stream, 2);
585 return tokenChain(stream,state,[">"],"bracket");}
586 if(/[\^'"!~\/]/.test(c)){
587 eatSuffix(stream, 1);
588 return tokenChain(stream,state,[stream.eat(c)],"bracket");}}
589 else if(c=="r"){
590 c=look(stream, 1);
591 if(c=="("){
592 eatSuffix(stream, 2);
593 return tokenChain(stream,state,[")"],RXstyle,RXmodifiers);}
594 if(c=="["){
595 eatSuffix(stream, 2);
596 return tokenChain(stream,state,["]"],RXstyle,RXmodifiers);}
597 if(c=="{"){
598 eatSuffix(stream, 2);
599 return tokenChain(stream,state,["}"],RXstyle,RXmodifiers);}
600 if(c=="<"){
601 eatSuffix(stream, 2);
602 return tokenChain(stream,state,[">"],RXstyle,RXmodifiers);}
603 if(/[\^'"!~\/]/.test(c)){
604 eatSuffix(stream, 1);
605 return tokenChain(stream,state,[stream.eat(c)],RXstyle,RXmodifiers);}}
606 else if(/[\^'"!~\/(\[{<]/.test(c)){
607 if(c=="("){
608 eatSuffix(stream, 1);
609 return tokenChain(stream,state,[")"],"string");}
610 if(c=="["){
611 eatSuffix(stream, 1);
612 return tokenChain(stream,state,["]"],"string");}
613 if(c=="{"){
614 eatSuffix(stream, 1);
615 return tokenChain(stream,state,["}"],"string");}
616 if(c=="<"){
617 eatSuffix(stream, 1);
618 return tokenChain(stream,state,[">"],"string");}
619 if(/[\^'"!~\/]/.test(c)){
620 return tokenChain(stream,state,[stream.eat(c)],"string");}}}}
621 if(ch=="m"){
622 var c=look(stream, -2);
623 if(!(c&&/\w/.test(c))){
624 c=stream.eat(/[(\[{<\^'"!~\/]/);
625 if(c){
626 if(/[\^'"!~\/]/.test(c)){
627 return tokenChain(stream,state,[c],RXstyle,RXmodifiers);}
628 if(c=="("){
629 return tokenChain(stream,state,[")"],RXstyle,RXmodifiers);}
630 if(c=="["){
631 return tokenChain(stream,state,["]"],RXstyle,RXmodifiers);}
632 if(c=="{"){
633 return tokenChain(stream,state,["}"],RXstyle,RXmodifiers);}
634 if(c=="<"){
635 return tokenChain(stream,state,[">"],RXstyle,RXmodifiers);}}}}
636 if(ch=="s"){
637 var c=/[\/>\]})\w]/.test(look(stream, -2));
638 if(!c){
639 c=stream.eat(/[(\[{<\^'"!~\/]/);
640 if(c){
641 if(c=="[")
642 return tokenChain(stream,state,["]","]"],RXstyle,RXmodifiers);
643 if(c=="{")
644 return tokenChain(stream,state,["}","}"],RXstyle,RXmodifiers);
645 if(c=="<")
646 return tokenChain(stream,state,[">",">"],RXstyle,RXmodifiers);
647 if(c=="(")
648 return tokenChain(stream,state,[")",")"],RXstyle,RXmodifiers);
649 return tokenChain(stream,state,[c,c],RXstyle,RXmodifiers);}}}
650 if(ch=="y"){
651 var c=/[\/>\]})\w]/.test(look(stream, -2));
652 if(!c){
653 c=stream.eat(/[(\[{<\^'"!~\/]/);
654 if(c){
655 if(c=="[")
656 return tokenChain(stream,state,["]","]"],RXstyle,RXmodifiers);
657 if(c=="{")
658 return tokenChain(stream,state,["}","}"],RXstyle,RXmodifiers);
659 if(c=="<")
660 return tokenChain(stream,state,[">",">"],RXstyle,RXmodifiers);
661 if(c=="(")
662 return tokenChain(stream,state,[")",")"],RXstyle,RXmodifiers);
663 return tokenChain(stream,state,[c,c],RXstyle,RXmodifiers);}}}
664 if(ch=="t"){
665 var c=/[\/>\]})\w]/.test(look(stream, -2));
666 if(!c){
667 c=stream.eat("r");if(c){
668 c=stream.eat(/[(\[{<\^'"!~\/]/);
669 if(c){
670 if(c=="[")
671 return tokenChain(stream,state,["]","]"],RXstyle,RXmodifiers);
672 if(c=="{")
673 return tokenChain(stream,state,["}","}"],RXstyle,RXmodifiers);
674 if(c=="<")
675 return tokenChain(stream,state,[">",">"],RXstyle,RXmodifiers);
676 if(c=="(")
677 return tokenChain(stream,state,[")",")"],RXstyle,RXmodifiers);
678 return tokenChain(stream,state,[c,c],RXstyle,RXmodifiers);}}}}
679 if(ch=="`"){
680 return tokenChain(stream,state,[ch],"variable-2");}
681 if(ch=="/"){
682 if(!/~\s*$/.test(prefix(stream)))
683 return "operator";
684 else
685 return tokenChain(stream,state,[ch],RXstyle,RXmodifiers);}
686 if(ch=="$"){
687 var p=stream.pos;
688 if(stream.eatWhile(/\d/)||stream.eat("{")&&stream.eatWhile(/\d/)&&stream.eat("}"))
689 return "variable-2";
690 else
691 stream.pos=p;}
692 if(/[$@%]/.test(ch)){
693 var p=stream.pos;
694 if(stream.eat("^")&&stream.eat(/[A-Z]/)||!/[@$%&]/.test(look(stream, -2))&&stream.eat(/[=|\\\-#?@;:&`~\^!\[\]*'"$+.,\/<>()]/)){
695 var c=stream.current();
696 if(PERL[c])
697 return "variable-2";}
698 stream.pos=p;}
699 if(/[$@%&]/.test(ch)){
700 if(stream.eatWhile(/[\w$\[\]]/)||stream.eat("{")&&stream.eatWhile(/[\w$\[\]]/)&&stream.eat("}")){
701 var c=stream.current();
702 if(PERL[c])
703 return "variable-2";
704 else
705 return "variable";}}
706 if(ch=="#"){
707 if(look(stream, -2)!="$"){
708 stream.skipToEnd();
709 return "comment";}}
710 if(/[:+\-\^*$&%@=<>!?|\/~\.]/.test(ch)){
711 var p=stream.pos;
712 stream.eatWhile(/[:+\-\^*$&%@=<>!?|\/~\.]/);
713 if(PERL[stream.current()])
714 return "operator";
715 else
716 stream.pos=p;}
717 if(ch=="_"){
718 if(stream.pos==1){
719 if(suffix(stream, 6)=="_END__"){
720 return tokenChain(stream,state,['\0'],"comment");}
721 else if(suffix(stream, 7)=="_DATA__"){
722 return tokenChain(stream,state,['\0'],"variable-2");}
723 else if(suffix(stream, 7)=="_C__"){
724 return tokenChain(stream,state,['\0'],"string");}}}
725 if(/\w/.test(ch)){
726 var p=stream.pos;
727 if(look(stream, -2)=="{"&&(look(stream, 0)=="}"||stream.eatWhile(/\w/)&&look(stream, 0)=="}"))
728 return "string";
729 else
730 stream.pos=p;}
731 if(/[A-Z]/.test(ch)){
732 var l=look(stream, -2);
733 var p=stream.pos;
734 stream.eatWhile(/[A-Z_]/);
735 if(/[\da-z]/.test(look(stream, 0))){
736 stream.pos=p;}
737 else{
738 var c=PERL[stream.current()];
739 if(!c)
740 return "meta";
741 if(c[1])
742 c=c[0];
743 if(l!=":"){
744 if(c==1)
745 return "keyword";
746 else if(c==2)
747 return "def";
748 else if(c==3)
749 return "atom";
750 else if(c==4)
751 return "operator";
752 else if(c==5)
753 return "variable-2";
754 else
755 return "meta";}
756 else
757 return "meta";}}
758 if(/[a-zA-Z_]/.test(ch)){
759 var l=look(stream, -2);
760 stream.eatWhile(/\w/);
761 var c=PERL[stream.current()];
762 if(!c)
763 return "meta";
764 if(c[1])
765 c=c[0];
766 if(l!=":"){
767 if(c==1)
768 return "keyword";
769 else if(c==2)
770 return "def";
771 else if(c==3)
772 return "atom";
773 else if(c==4)
774 return "operator";
775 else if(c==5)
776 return "variable-2";
777 else
778 return "meta";}
779 else
780 return "meta";}
781 return null;}
782
783 return {
784 startState: function() {
785 return {
786 tokenize: tokenPerl,
787 chain: null,
788 style: null,
789 tail: null
790 };
791 },
792 token: function(stream, state) {
793 return (state.tokenize || tokenPerl)(stream, state);
794 },
795 lineComment: '#'
796 };
797});
798
799CodeMirror.registerHelper("wordChars", "perl", /[\w$]/);
800
801CodeMirror.defineMIME("text/x-perl", "perl");
802
803// it's like "peek", but need for look-ahead or look-behind if index < 0
804function look(stream, c){
805 return stream.string.charAt(stream.pos+(c||0));
806}
807
808// return a part of prefix of current stream from current position
809function prefix(stream, c){
810 if(c){
811 var x=stream.pos-c;
812 return stream.string.substr((x>=0?x:0),c);}
813 else{
814 return stream.string.substr(0,stream.pos-1);
815 }
816}
817
818// return a part of suffix of current stream from current position
819function suffix(stream, c){
820 var y=stream.string.length;
821 var x=y-stream.pos+1;
822 return stream.string.substr(stream.pos,(c&&c<y?c:x));
823}
824
825// eating and vomiting a part of stream from current position
826function eatSuffix(stream, c){
827 var x=stream.pos+c;
828 var y;
829 if(x<=0)
830 stream.pos=0;
831 else if(x>=(y=stream.string.length-1))
832 stream.pos=y;
833 else
834 stream.pos=x;
835}
836
837});