// CodeMirror, copyright (c) by Marijn Haverbeke and others // Distributed under an MIT license: https://codemirror.net/LICENSE // CodeMirror2 mode/perl/perl.js (text/x-perl) beta 0.10 (2011-11-08) // This is a part of CodeMirror from https://github.com/sabaca/CodeMirror_mode_perl (mail@sabaca.com) ;(function (mod) { if (typeof exports == 'object' && typeof module == 'object') // CommonJS mod(require('../../lib/codemirror')) else if (typeof define == 'function' && define.amd) // AMD define(['../../lib/codemirror'], mod) // Plain browser env else mod(CodeMirror) })(function (CodeMirror) { 'use strict' CodeMirror.defineMode('perl', function () { // http://perldoc.perl.org var PERL = { // null - magic touch // 1 - keyword // 2 - def // 3 - atom // 4 - operator // 5 - variable-2 (predefined) // [x,y] - x=1,2,3; y=must be defined if x{...} // PERL operators '->': 4, '++': 4, '--': 4, '**': 4, // ! ~ \ and unary + and - '=~': 4, '!~': 4, '*': 4, '/': 4, '%': 4, x: 4, '+': 4, '-': 4, '.': 4, '<<': 4, '>>': 4, // named unary operators '<': 4, '>': 4, '<=': 4, '>=': 4, lt: 4, gt: 4, le: 4, ge: 4, '==': 4, '!=': 4, '<=>': 4, eq: 4, ne: 4, cmp: 4, '~~': 4, '&': 4, '|': 4, '^': 4, '&&': 4, '||': 4, '//': 4, '..': 4, '...': 4, '?': 4, ':': 4, '=': 4, '+=': 4, '-=': 4, '*=': 4, // etc. ??? ',': 4, '=>': 4, '::': 4, // list operators (rightward) not: 4, and: 4, or: 4, xor: 4, // 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?;) BEGIN: [5, 1], END: [5, 1], PRINT: [5, 1], PRINTF: [5, 1], GETC: [5, 1], READ: [5, 1], READLINE: [5, 1], DESTROY: [5, 1], TIE: [5, 1], TIEHANDLE: [5, 1], UNTIE: [5, 1], STDIN: 5, STDIN_TOP: 5, STDOUT: 5, STDOUT_TOP: 5, STDERR: 5, STDERR_TOP: 5, $ARG: 5, $_: 5, '@ARG': 5, '@_': 5, $LIST_SEPARATOR: 5, '$"': 5, $PROCESS_ID: 5, $PID: 5, $$: 5, $REAL_GROUP_ID: 5, $GID: 5, '$(': 5, $EFFECTIVE_GROUP_ID: 5, $EGID: 5, '$)': 5, $PROGRAM_NAME: 5, $0: 5, $SUBSCRIPT_SEPARATOR: 5, $SUBSEP: 5, '$;': 5, $REAL_USER_ID: 5, $UID: 5, '$<': 5, $EFFECTIVE_USER_ID: 5, $EUID: 5, '$>': 5, $a: 5, $b: 5, $COMPILING: 5, '$^C': 5, $DEBUGGING: 5, '$^D': 5, '${^ENCODING}': 5, $ENV: 5, '%ENV': 5, $SYSTEM_FD_MAX: 5, '$^F': 5, '@F': 5, '${^GLOBAL_PHASE}': 5, '$^H': 5, '%^H': 5, '@INC': 5, '%INC': 5, $INPLACE_EDIT: 5, '$^I': 5, '$^M': 5, $OSNAME: 5, '$^O': 5, '${^OPEN}': 5, $PERLDB: 5, '$^P': 5, $SIG: 5, '%SIG': 5, $BASETIME: 5, '$^T': 5, '${^TAINT}': 5, '${^UNICODE}': 5, '${^UTF8CACHE}': 5, '${^UTF8LOCALE}': 5, $PERL_VERSION: 5, '$^V': 5, '${^WIN32_SLOPPY_STAT}': 5, $EXECUTABLE_NAME: 5, '$^X': 5, $1: 5, // - regexp $1, $2... $MATCH: 5, '$&': 5, '${^MATCH}': 5, $PREMATCH: 5, '$`': 5, '${^PREMATCH}': 5, $POSTMATCH: 5, "$'": 5, '${^POSTMATCH}': 5, $LAST_PAREN_MATCH: 5, '$+': 5, $LAST_SUBMATCH_RESULT: 5, '$^N': 5, '@LAST_MATCH_END': 5, '@+': 5, '%LAST_PAREN_MATCH': 5, '%+': 5, '@LAST_MATCH_START': 5, '@-': 5, '%LAST_MATCH_START': 5, '%-': 5, $LAST_REGEXP_CODE_RESULT: 5, '$^R': 5, '${^RE_DEBUG_FLAGS}': 5, '${^RE_TRIE_MAXBUF}': 5, $ARGV: 5, '@ARGV': 5, ARGV: 5, ARGVOUT: 5, $OUTPUT_FIELD_SEPARATOR: 5, $OFS: 5, '$,': 5, $INPUT_LINE_NUMBER: 5, $NR: 5, '$.': 5, $INPUT_RECORD_SEPARATOR: 5, $RS: 5, '$/': 5, $OUTPUT_RECORD_SEPARATOR: 5, $ORS: 5, '$\\': 5, $OUTPUT_AUTOFLUSH: 5, '$|': 5, $ACCUMULATOR: 5, '$^A': 5, $FORMAT_FORMFEED: 5, '$^L': 5, $FORMAT_PAGE_NUMBER: 5, '$%': 5, $FORMAT_LINES_LEFT: 5, '$-': 5, $FORMAT_LINE_BREAK_CHARACTERS: 5, '$:': 5, $FORMAT_LINES_PER_PAGE: 5, '$=': 5, $FORMAT_TOP_NAME: 5, '$^': 5, $FORMAT_NAME: 5, '$~': 5, '${^CHILD_ERROR_NATIVE}': 5, $EXTENDED_OS_ERROR: 5, '$^E': 5, $EXCEPTIONS_BEING_CAUGHT: 5, '$^S': 5, $WARNING: 5, '$^W': 5, '${^WARNING_BITS}': 5, $OS_ERROR: 5, $ERRNO: 5, '$!': 5, '%OS_ERROR': 5, '%ERRNO': 5, '%!': 5, $CHILD_ERROR: 5, '$?': 5, $EVAL_ERROR: 5, '$@': 5, $OFMT: 5, '$#': 5, '$*': 5, $ARRAY_BASE: 5, '$[': 5, $OLD_PERL_VERSION: 5, '$]': 5, // PERL blocks if: [1, 1], elsif: [1, 1], else: [1, 1], while: [1, 1], unless: [1, 1], for: [1, 1], foreach: [1, 1], // PERL functions abs: 1, // - absolute value function accept: 1, // - accept an incoming socket connect alarm: 1, // - schedule a SIGALRM atan2: 1, // - arctangent of Y/X in the range -PI to PI bind: 1, // - binds an address to a socket binmode: 1, // - prepare binary files for I/O bless: 1, // - create an object bootstrap: 1, // break: 1, // - break out of a "given" block caller: 1, // - get context of the current subroutine call chdir: 1, // - change your current working directory chmod: 1, // - changes the permissions on a list of files chomp: 1, // - remove a trailing record separator from a string chop: 1, // - remove the last character from a string chown: 1, // - change the ownership on a list of files chr: 1, // - get character this number represents chroot: 1, // - make directory new root for path lookups close: 1, // - close file (or pipe or socket) handle closedir: 1, // - close directory handle connect: 1, // - connect to a remote socket continue: [1, 1], // - optional trailing block in a while or foreach cos: 1, // - cosine function crypt: 1, // - one-way passwd-style encryption dbmclose: 1, // - breaks binding on a tied dbm file dbmopen: 1, // - create binding on a tied dbm file default: 1, // defined: 1, // - test whether a value, variable, or function is defined delete: 1, // - deletes a value from a hash die: 1, // - raise an exception or bail out do: 1, // - turn a BLOCK into a TERM dump: 1, // - create an immediate core dump each: 1, // - retrieve the next key/value pair from a hash endgrent: 1, // - be done using group file endhostent: 1, // - be done using hosts file endnetent: 1, // - be done using networks file endprotoent: 1, // - be done using protocols file endpwent: 1, // - be done using passwd file endservent: 1, // - be done using services file eof: 1, // - test a filehandle for its end eval: 1, // - catch exceptions or compile and run code exec: 1, // - abandon this program to run another exists: 1, // - test whether a hash key is present exit: 1, // - terminate this program exp: 1, // - raise I to a power fcntl: 1, // - file control system call fileno: 1, // - return file descriptor from filehandle flock: 1, // - lock an entire file with an advisory lock fork: 1, // - create a new process just like this one format: 1, // - declare a picture format with use by the write() function formline: 1, // - internal function used for formats getc: 1, // - get the next character from the filehandle getgrent: 1, // - get next group record getgrgid: 1, // - get group record given group user ID getgrnam: 1, // - get group record given group name gethostbyaddr: 1, // - get host record given its address gethostbyname: 1, // - get host record given name gethostent: 1, // - get next hosts record getlogin: 1, // - return who logged in at this tty getnetbyaddr: 1, // - get network record given its address getnetbyname: 1, // - get networks record given name getnetent: 1, // - get next networks record getpeername: 1, // - find the other end of a socket connection getpgrp: 1, // - get process group getppid: 1, // - get parent process ID getpriority: 1, // - get current nice value getprotobyname: 1, // - get protocol record given name getprotobynumber: 1, // - get protocol record numeric protocol getprotoent: 1, // - get next protocols record getpwent: 1, // - get next passwd record getpwnam: 1, // - get passwd record given user login name getpwuid: 1, // - get passwd record given user ID getservbyname: 1, // - get services record given its name getservbyport: 1, // - get services record given numeric port getservent: 1, // - get next services record getsockname: 1, // - retrieve the sockaddr for a given socket getsockopt: 1, // - get socket options on a given socket given: 1, // glob: 1, // - expand filenames using wildcards gmtime: 1, // - convert UNIX time into record or string using Greenwich time goto: 1, // - create spaghetti code grep: 1, // - locate elements in a list test true against a given criterion hex: 1, // - convert a string to a hexadecimal number import: 1, // - patch a module's namespace into your own index: 1, // - find a substring within a string int: 1, // - get the integer portion of a number ioctl: 1, // - system-dependent device control system call join: 1, // - join a list into a string using a separator keys: 1, // - retrieve list of indices from a hash kill: 1, // - send a signal to a process or process group last: 1, // - exit a block prematurely lc: 1, // - return lower-case version of a string lcfirst: 1, // - return a string with just the next letter in lower case length: 1, // - return the number of bytes in a string link: 1, // - create a hard link in the filesystem listen: 1, // - register your socket as a server local: 2, // - create a temporary value for a global variable (dynamic scoping) localtime: 1, // - convert UNIX time into record or string using local time lock: 1, // - get a thread lock on a variable, subroutine, or method log: 1, // - retrieve the natural logarithm for a number lstat: 1, // - stat a symbolic link m: null, // - match a string with a regular expression pattern map: 1, // - apply a change to a list to get back a new list with the changes mkdir: 1, // - create a directory msgctl: 1, // - SysV IPC message control operations msgget: 1, // - get SysV IPC message queue msgrcv: 1, // - receive a SysV IPC message from a message queue msgsnd: 1, // - send a SysV IPC message to a message queue my: 2, // - declare and assign a local variable (lexical scoping) new: 1, // next: 1, // - iterate a block prematurely no: 1, // - unimport some module symbols or semantics at compile time oct: 1, // - convert a string to an octal number open: 1, // - open a file, pipe, or descriptor opendir: 1, // - open a directory ord: 1, // - find a character's numeric representation our: 2, // - declare and assign a package variable (lexical scoping) pack: 1, // - convert a list into a binary representation package: 1, // - declare a separate global namespace pipe: 1, // - open a pair of connected filehandles pop: 1, // - remove the last element from an array and return it pos: 1, // - find or set the offset for the last/next m//g search print: 1, // - output a list to a filehandle printf: 1, // - output a formatted list to a filehandle prototype: 1, // - get the prototype (if any) of a subroutine push: 1, // - append one or more elements to an array q: null, // - singly quote a string qq: null, // - doubly quote a string qr: null, // - Compile pattern quotemeta: null, // - quote regular expression magic characters qw: null, // - quote a list of words qx: null, // - backquote quote a string rand: 1, // - retrieve the next pseudorandom number read: 1, // - fixed-length buffered input from a filehandle readdir: 1, // - get a directory from a directory handle readline: 1, // - fetch a record from a file readlink: 1, // - determine where a symbolic link is pointing readpipe: 1, // - execute a system command and collect standard output recv: 1, // - receive a message over a Socket redo: 1, // - start this loop iteration over again ref: 1, // - find out the type of thing being referenced rename: 1, // - change a filename require: 1, // - load in external functions from a library at runtime reset: 1, // - clear all variables of a given name return: 1, // - get out of a function early reverse: 1, // - flip a string or a list rewinddir: 1, // - reset directory handle rindex: 1, // - right-to-left substring search rmdir: 1, // - remove a directory s: null, // - replace a pattern with a string say: 1, // - print with newline scalar: 1, // - force a scalar context seek: 1, // - reposition file pointer for random-access I/O seekdir: 1, // - reposition directory pointer select: 1, // - reset default output or do I/O multiplexing semctl: 1, // - SysV semaphore control operations semget: 1, // - get set of SysV semaphores semop: 1, // - SysV semaphore operations send: 1, // - send a message over a socket setgrent: 1, // - prepare group file for use sethostent: 1, // - prepare hosts file for use setnetent: 1, // - prepare networks file for use setpgrp: 1, // - set the process group of a process setpriority: 1, // - set a process's nice value setprotoent: 1, // - prepare protocols file for use setpwent: 1, // - prepare passwd file for use setservent: 1, // - prepare services file for use setsockopt: 1, // - set some socket options shift: 1, // - remove the first element of an array, and return it shmctl: 1, // - SysV shared memory operations shmget: 1, // - get SysV shared memory segment identifier shmread: 1, // - read SysV shared memory shmwrite: 1, // - write SysV shared memory shutdown: 1, // - close down just half of a socket connection sin: 1, // - return the sine of a number sleep: 1, // - block for some number of seconds socket: 1, // - create a socket socketpair: 1, // - create a pair of sockets sort: 1, // - sort a list of values splice: 1, // - add or remove elements anywhere in an array split: 1, // - split up a string using a regexp delimiter sprintf: 1, // - formatted print into a string sqrt: 1, // - square root function srand: 1, // - seed the random number generator stat: 1, // - get a file's status information state: 1, // - declare and assign a state variable (persistent lexical scoping) study: 1, // - optimize input data for repeated searches sub: 1, // - declare a subroutine, possibly anonymously substr: 1, // - get or alter a portion of a string symlink: 1, // - create a symbolic link to a file syscall: 1, // - execute an arbitrary system call sysopen: 1, // - open a file, pipe, or descriptor sysread: 1, // - fixed-length unbuffered input from a filehandle sysseek: 1, // - position I/O pointer on handle used with sysread and syswrite system: 1, // - run a separate program syswrite: 1, // - fixed-length unbuffered output to a filehandle tell: 1, // - get current seekpointer on a filehandle telldir: 1, // - get current seekpointer on a directory handle tie: 1, // - bind a variable to an object class tied: 1, // - get a reference to the object underlying a tied variable time: 1, // - return number of seconds since 1970 times: 1, // - return elapsed time for self and child processes tr: null, // - transliterate a string truncate: 1, // - shorten a file uc: 1, // - return upper-case version of a string ucfirst: 1, // - return a string with just the next letter in upper case umask: 1, // - set file creation mode mask undef: 1, // - remove a variable or function definition unlink: 1, // - remove one link to a file unpack: 1, // - convert binary structure into normal perl variables unshift: 1, // - prepend more elements to the beginning of a list untie: 1, // - break a tie binding to a variable use: 1, // - load in a module at compile time utime: 1, // - set a file's last access and modify times values: 1, // - return a list of the values in a hash vec: 1, // - test or set particular bits in a string wait: 1, // - wait for any child process to die waitpid: 1, // - wait for a particular child process to die wantarray: 1, // - get void vs scalar vs list context of current subroutine call warn: 1, // - print debugging info when: 1, // write: 1, // - print a picture record y: null, } // - transliterate a string var RXstyle = 'string-2' var RXmodifiers = /[goseximacplud]/ // NOTE: "m", "s", "y" and "tr" need to correct real modifiers for each regexp type function tokenChain(stream, state, chain, style, tail) { // NOTE: chain.length > 2 is not working now (it's for s[...][...]geos;) state.chain = null // 12 3tail state.style = null state.tail = null state.tokenize = function (stream, state) { var e = false, c, i = 0 while ((c = stream.next())) { if (c === chain[i] && !e) { if (chain[++i] !== undefined) { state.chain = chain[i] state.style = style state.tail = tail } else if (tail) stream.eatWhile(tail) state.tokenize = tokenPerl return style } e = !e && c == '\\' } return style } return state.tokenize(stream, state) } function tokenSOMETHING(stream, state, string) { state.tokenize = function (stream, state) { if (stream.string == string) state.tokenize = tokenPerl stream.skipToEnd() return 'string' } return state.tokenize(stream, state) } function tokenPerl(stream, state) { if (stream.eatSpace()) return null if (state.chain) return tokenChain(stream, state, state.chain, state.style, state.tail) if (stream.match(/^(\-?((\d[\d_]*)?\.\d+(e[+-]?\d+)?|\d+\.\d*)|0x[\da-fA-F_]+|0b[01_]+|\d[\d_]*(e[+-]?\d+)?)/)) return 'number' if (stream.match(/^<<(?=[_a-zA-Z])/)) { // NOTE: <'], RXstyle, RXmodifiers) } if (/[\^'"!~\/]/.test(c)) { eatSuffix(stream, 1) return tokenChain(stream, state, [stream.eat(c)], RXstyle, RXmodifiers) } } else if (c == 'q') { c = look(stream, 1) if (c == '(') { eatSuffix(stream, 2) return tokenChain(stream, state, [')'], 'string') } if (c == '[') { eatSuffix(stream, 2) return tokenChain(stream, state, [']'], 'string') } if (c == '{') { eatSuffix(stream, 2) return tokenChain(stream, state, ['}'], 'string') } if (c == '<') { eatSuffix(stream, 2) return tokenChain(stream, state, ['>'], 'string') } if (/[\^'"!~\/]/.test(c)) { eatSuffix(stream, 1) return tokenChain(stream, state, [stream.eat(c)], 'string') } } else if (c == 'w') { c = look(stream, 1) if (c == '(') { eatSuffix(stream, 2) return tokenChain(stream, state, [')'], 'bracket') } if (c == '[') { eatSuffix(stream, 2) return tokenChain(stream, state, [']'], 'bracket') } if (c == '{') { eatSuffix(stream, 2) return tokenChain(stream, state, ['}'], 'bracket') } if (c == '<') { eatSuffix(stream, 2) return tokenChain(stream, state, ['>'], 'bracket') } if (/[\^'"!~\/]/.test(c)) { eatSuffix(stream, 1) return tokenChain(stream, state, [stream.eat(c)], 'bracket') } } else if (c == 'r') { c = look(stream, 1) if (c == '(') { eatSuffix(stream, 2) return tokenChain(stream, state, [')'], RXstyle, RXmodifiers) } if (c == '[') { eatSuffix(stream, 2) return tokenChain(stream, state, [']'], RXstyle, RXmodifiers) } if (c == '{') { eatSuffix(stream, 2) return tokenChain(stream, state, ['}'], RXstyle, RXmodifiers) } if (c == '<') { eatSuffix(stream, 2) return tokenChain(stream, state, ['>'], RXstyle, RXmodifiers) } if (/[\^'"!~\/]/.test(c)) { eatSuffix(stream, 1) return tokenChain(stream, state, [stream.eat(c)], RXstyle, RXmodifiers) } } else if (/[\^'"!~\/(\[{<]/.test(c)) { if (c == '(') { eatSuffix(stream, 1) return tokenChain(stream, state, [')'], 'string') } if (c == '[') { eatSuffix(stream, 1) return tokenChain(stream, state, [']'], 'string') } if (c == '{') { eatSuffix(stream, 1) return tokenChain(stream, state, ['}'], 'string') } if (c == '<') { eatSuffix(stream, 1) return tokenChain(stream, state, ['>'], 'string') } if (/[\^'"!~\/]/.test(c)) { return tokenChain(stream, state, [stream.eat(c)], 'string') } } } } if (ch == 'm') { var c = look(stream, -2) if (!(c && /\w/.test(c))) { c = stream.eat(/[(\[{<\^'"!~\/]/) if (c) { if (/[\^'"!~\/]/.test(c)) { return tokenChain(stream, state, [c], RXstyle, RXmodifiers) } if (c == '(') { return tokenChain(stream, state, [')'], RXstyle, RXmodifiers) } if (c == '[') { return tokenChain(stream, state, [']'], RXstyle, RXmodifiers) } if (c == '{') { return tokenChain(stream, state, ['}'], RXstyle, RXmodifiers) } if (c == '<') { return tokenChain(stream, state, ['>'], RXstyle, RXmodifiers) } } } } if (ch == 's') { var c = /[\/>\]})\w]/.test(look(stream, -2)) if (!c) { c = stream.eat(/[(\[{<\^'"!~\/]/) if (c) { if (c == '[') return tokenChain(stream, state, [']', ']'], RXstyle, RXmodifiers) if (c == '{') return tokenChain(stream, state, ['}', '}'], RXstyle, RXmodifiers) if (c == '<') return tokenChain(stream, state, ['>', '>'], RXstyle, RXmodifiers) if (c == '(') return tokenChain(stream, state, [')', ')'], RXstyle, RXmodifiers) return tokenChain(stream, state, [c, c], RXstyle, RXmodifiers) } } } if (ch == 'y') { var c = /[\/>\]})\w]/.test(look(stream, -2)) if (!c) { c = stream.eat(/[(\[{<\^'"!~\/]/) if (c) { if (c == '[') return tokenChain(stream, state, [']', ']'], RXstyle, RXmodifiers) if (c == '{') return tokenChain(stream, state, ['}', '}'], RXstyle, RXmodifiers) if (c == '<') return tokenChain(stream, state, ['>', '>'], RXstyle, RXmodifiers) if (c == '(') return tokenChain(stream, state, [')', ')'], RXstyle, RXmodifiers) return tokenChain(stream, state, [c, c], RXstyle, RXmodifiers) } } } if (ch == 't') { var c = /[\/>\]})\w]/.test(look(stream, -2)) if (!c) { c = stream.eat('r') if (c) { c = stream.eat(/[(\[{<\^'"!~\/]/) if (c) { if (c == '[') return tokenChain(stream, state, [']', ']'], RXstyle, RXmodifiers) if (c == '{') return tokenChain(stream, state, ['}', '}'], RXstyle, RXmodifiers) if (c == '<') return tokenChain(stream, state, ['>', '>'], RXstyle, RXmodifiers) if (c == '(') return tokenChain(stream, state, [')', ')'], RXstyle, RXmodifiers) return tokenChain(stream, state, [c, c], RXstyle, RXmodifiers) } } } } if (ch == '`') { return tokenChain(stream, state, [ch], 'variable-2') } if (ch == '/') { if (!/~\s*$/.test(prefix(stream))) return 'operator' else return tokenChain(stream, state, [ch], RXstyle, RXmodifiers) } if (ch == '$') { var p = stream.pos if (stream.eatWhile(/\d/) || (stream.eat('{') && stream.eatWhile(/\d/) && stream.eat('}'))) return 'variable-2' else stream.pos = p } if (/[$@%]/.test(ch)) { var p = stream.pos if ((stream.eat('^') && stream.eat(/[A-Z]/)) || (!/[@$%&]/.test(look(stream, -2)) && stream.eat(/[=|\\\-#?@;:&`~\^!\[\]*'"$+.,\/<>()]/))) { var c = stream.current() if (PERL[c]) return 'variable-2' } stream.pos = p } if (/[$@%&]/.test(ch)) { if (stream.eatWhile(/[\w$]/) || (stream.eat('{') && stream.eatWhile(/[\w$]/) && stream.eat('}'))) { var c = stream.current() if (PERL[c]) return 'variable-2' else return 'variable' } } if (ch == '#') { if (look(stream, -2) != '$') { stream.skipToEnd() return 'comment' } } if (/[:+\-\^*$&%@=<>!?|\/~\.]/.test(ch)) { var p = stream.pos stream.eatWhile(/[:+\-\^*$&%@=<>!?|\/~\.]/) if (PERL[stream.current()]) return 'operator' else stream.pos = p } if (ch == '_') { if (stream.pos == 1) { if (suffix(stream, 6) == '_END__') { return tokenChain(stream, state, ['\0'], 'comment') } else if (suffix(stream, 7) == '_DATA__') { return tokenChain(stream, state, ['\0'], 'variable-2') } else if (suffix(stream, 7) == '_C__') { return tokenChain(stream, state, ['\0'], 'string') } } } if (/\w/.test(ch)) { var p = stream.pos if (look(stream, -2) == '{' && (look(stream, 0) == '}' || (stream.eatWhile(/\w/) && look(stream, 0) == '}'))) return 'string' else stream.pos = p } if (/[A-Z]/.test(ch)) { var l = look(stream, -2) var p = stream.pos stream.eatWhile(/[A-Z_]/) if (/[\da-z]/.test(look(stream, 0))) { stream.pos = p } else { var c = PERL[stream.current()] if (!c) return 'meta' if (c[1]) c = c[0] if (l != ':') { if (c == 1) return 'keyword' else if (c == 2) return 'def' else if (c == 3) return 'atom' else if (c == 4) return 'operator' else if (c == 5) return 'variable-2' else return 'meta' } else return 'meta' } } if (/[a-zA-Z_]/.test(ch)) { var l = look(stream, -2) stream.eatWhile(/\w/) var c = PERL[stream.current()] if (!c) return 'meta' if (c[1]) c = c[0] if (l != ':') { if (c == 1) return 'keyword' else if (c == 2) return 'def' else if (c == 3) return 'atom' else if (c == 4) return 'operator' else if (c == 5) return 'variable-2' else return 'meta' } else return 'meta' } return null } return { startState: function () { return { tokenize: tokenPerl, chain: null, style: null, tail: null, } }, token: function (stream, state) { return (state.tokenize || tokenPerl)(stream, state) }, lineComment: '#', } }) CodeMirror.registerHelper('wordChars', 'perl', /[\w$]/) CodeMirror.defineMIME('text/x-perl', 'perl') // it's like "peek", but need for look-ahead or look-behind if index < 0 function look(stream, c) { return stream.string.charAt(stream.pos + (c || 0)) } // return a part of prefix of current stream from current position function prefix(stream, c) { if (c) { var x = stream.pos - c return stream.string.substr(x >= 0 ? x : 0, c) } else { return stream.string.substr(0, stream.pos - 1) } } // return a part of suffix of current stream from current position function suffix(stream, c) { var y = stream.string.length var x = y - stream.pos + 1 return stream.string.substr(stream.pos, c && c < y ? c : x) } // eating and vomiting a part of stream from current position function eatSuffix(stream, c) { var x = stream.pos + c var y if (x <= 0) stream.pos = 0 else if (x >= (y = stream.string.length - 1)) stream.pos = y else stream.pos = x } })