// CodeMirror, copyright (c) by Marijn Haverbeke and others // Distributed under an MIT license: http://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); else // Plain browser env 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 owership 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 filesytem 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 stirng 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\.]/, false)) if (stream.match(/^(\-?(\d*\.\d+(e[+-]?\d+)?|\d+\.\d*)|0x[\da-fA-F]+|0b[01]+|\d+(e[+-]?\d+)?)/)) return 'number'; if (stream.match(/^<<(?=\w)/)) { // 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(/[:+\-\^*$&%@=<>!?|\/~\.]/); if (PERL[stream.current()]) return "operator"; else stream.pos = p; } if (ch == "_") { if (stream.pos == 1) { if (suffix(stream, 6) == "_END__") { return tokenChain(stream, state, ['\0'], "comment"); } else if (suffix(stream, 7) == "_DATA__") { return tokenChain(stream, state, ['\0'], "variable-2"); } else if (suffix(stream, 7) == "_C__") { return tokenChain(stream, state, ['\0'], "string"); } } } if (/\w/.test(ch)) { var p = stream.pos; if (look(stream, -2) == "{" && (look(stream, 0) == "}" || stream.eatWhile(/\w/) && look(stream, 0) == "}")) return "string"; else stream.pos = p; } if (/[A-Z]/.test(ch)) { var l = look(stream, -2); var p = stream.pos; stream.eatWhile(/[A-Z_]/); if (/[\da-z]/.test(look(stream, 0))) { stream.pos = p; } else { var c = PERL[stream.current()]; if (!c) return "meta"; if (c[1]) c = c[0]; if (l != ":") { if (c == 1) return "keyword"; else if (c == 2) return "def"; else if (c == 3) return "atom"; else if (c == 4) return "operator"; else if (c == 5) return "variable-2"; else return "meta"; } else return "meta"; } } if (/[a-zA-Z_]/.test(ch)) { var l = look(stream, -2); stream.eatWhile(/\w/); var c = PERL[stream.current()]; if (!c) return "meta"; if (c[1]) c = c[0]; if (l != ":") { if (c == 1) return "keyword"; else if (c == 2) return "def"; else if (c == 3) return "atom"; else if (c == 4) return "operator"; else if (c == 5) return "variable-2"; else return "meta"; } else return "meta"; } return null; } return { startState: function () { return { tokenize: tokenPerl, chain: null, style: null, tail: null }; }, token: function (stream, state) { return (state.tokenize || tokenPerl)(stream, state); }, electricChars: "{}" }; }); CodeMirror.registerHelper("wordChars", "perl", /[\w$]/); 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; } });