File "erlang.js"
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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
/*jshint unused:true, eqnull:true, curly:true, bitwise:true */
/*jshint undef:true, latedef:true, trailing:true */
/*global CodeMirror:true */
// erlang mode.
// tokenizer -> token types -> CodeMirror styles
// tokenizer maintains a parse stack
// indenter uses the parse stack
// TODO indenter:
// bit syntax
// old guard/bif/conversion clashes (e.g. "float/1")
// type/spec/opaque
(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.defineMIME("text/x-erlang", "erlang");
CodeMirror.defineMode("erlang", function(cmCfg) {
"use strict";
/////////////////////////////////////////////////////////////////////////////
// constants
var typeWords = [
"-type", "-spec", "-export_type", "-opaque"];
var keywordWords = [
"after","begin","catch","case","cond","end","fun","if",
"let","of","query","receive","try","when"];
var separatorRE = /[\->,;]/;
var separatorWords = [
"->",";",","];
var operatorAtomWords = [
"and","andalso","band","bnot","bor","bsl","bsr","bxor",
"div","not","or","orelse","rem","xor"];
var operatorSymbolRE = /[\+\-\*\/<>=\|:!]/;
var operatorSymbolWords = [
"=","+","-","*","/",">",">=","<","=<","=:=","==","=/=","/=","||","<-","!"];
var openParenRE = /[<\(\[\{]/;
var openParenWords = [
"<<","(","[","{"];
var closeParenRE = /[>\)\]\}]/;
var closeParenWords = [
"}","]",")",">>"];
var guardWords = [
"is_atom","is_binary","is_bitstring","is_boolean","is_float",
"is_function","is_integer","is_list","is_number","is_pid",
"is_port","is_record","is_reference","is_tuple",
"atom","binary","bitstring","boolean","function","integer","list",
"number","pid","port","record","reference","tuple"];
var bifWords = [
"abs","adler32","adler32_combine","alive","apply","atom_to_binary",
"atom_to_list","binary_to_atom","binary_to_existing_atom",
"binary_to_list","binary_to_term","bit_size","bitstring_to_list",
"byte_size","check_process_code","contact_binary","crc32",
"crc32_combine","date","decode_packet","delete_module",
"disconnect_node","element","erase","exit","float","float_to_list",
"garbage_collect","get","get_keys","group_leader","halt","hd",
"integer_to_list","internal_bif","iolist_size","iolist_to_binary",
"is_alive","is_atom","is_binary","is_bitstring","is_boolean",
"is_float","is_function","is_integer","is_list","is_number","is_pid",
"is_port","is_process_alive","is_record","is_reference","is_tuple",
"length","link","list_to_atom","list_to_binary","list_to_bitstring",
"list_to_existing_atom","list_to_float","list_to_integer",
"list_to_pid","list_to_tuple","load_module","make_ref","module_loaded",
"monitor_node","node","node_link","node_unlink","nodes","notalive",
"now","open_port","pid_to_list","port_close","port_command",
"port_connect","port_control","pre_loaded","process_flag",
"process_info","processes","purge_module","put","register",
"registered","round","self","setelement","size","spawn","spawn_link",
"spawn_monitor","spawn_opt","split_binary","statistics",
"term_to_binary","time","throw","tl","trunc","tuple_size",
"tuple_to_list","unlink","unregister","whereis"];
// upper case: [A-Z] [Ø-Þ] [À-Ö]
// lower case: [a-z] [ß-ö] [ø-ÿ]
var anumRE = /[\w@Ø-ÞÀ-Öß-öø-ÿ]/;
var escapesRE =
/[0-7]{1,3}|[bdefnrstv\\"']|\^[a-zA-Z]|x[0-9a-zA-Z]{2}|x{[0-9a-zA-Z]+}/;
/////////////////////////////////////////////////////////////////////////////
// tokenizer
function tokenizer(stream,state) {
// in multi-line string
if (state.in_string) {
state.in_string = (!doubleQuote(stream));
return rval(state,stream,"string");
}
// in multi-line atom
if (state.in_atom) {
state.in_atom = (!singleQuote(stream));
return rval(state,stream,"atom");
}
// whitespace
if (stream.eatSpace()) {
return rval(state,stream,"whitespace");
}
// attributes and type specs
if (!peekToken(state) &&
stream.match(/-\s*[a-zß-öø-ÿ][\wØ-ÞÀ-Öß-öø-ÿ]*/)) {
if (is_member(stream.current(),typeWords)) {
return rval(state,stream,"type");
}else{
return rval(state,stream,"attribute");
}
}
var ch = stream.next();
// comment
if (ch == '%') {
stream.skipToEnd();
return rval(state,stream,"comment");
}
// colon
if (ch == ":") {
return rval(state,stream,"colon");
}
// macro
if (ch == '?') {
stream.eatSpace();
stream.eatWhile(anumRE);
return rval(state,stream,"macro");
}
// record
if (ch == "#") {
stream.eatSpace();
stream.eatWhile(anumRE);
return rval(state,stream,"record");
}
// dollar escape
if (ch == "$") {
if (stream.next() == "\\" && !stream.match(escapesRE)) {
return rval(state,stream,"error");
}
return rval(state,stream,"number");
}
// dot
if (ch == ".") {
return rval(state,stream,"dot");
}
// quoted atom
if (ch == '\'') {
if (!(state.in_atom = (!singleQuote(stream)))) {
if (stream.match(/\s*\/\s*[0-9]/,false)) {
stream.match(/\s*\/\s*[0-9]/,true);
return rval(state,stream,"fun"); // 'f'/0 style fun
}
if (stream.match(/\s*\(/,false) || stream.match(/\s*:/,false)) {
return rval(state,stream,"function");
}
}
return rval(state,stream,"atom");
}
// string
if (ch == '"') {
state.in_string = (!doubleQuote(stream));
return rval(state,stream,"string");
}
// variable
if (/[A-Z_Ø-ÞÀ-Ö]/.test(ch)) {
stream.eatWhile(anumRE);
return rval(state,stream,"variable");
}
// atom/keyword/BIF/function
if (/[a-z_ß-öø-ÿ]/.test(ch)) {
stream.eatWhile(anumRE);
if (stream.match(/\s*\/\s*[0-9]/,false)) {
stream.match(/\s*\/\s*[0-9]/,true);
return rval(state,stream,"fun"); // f/0 style fun
}
var w = stream.current();
if (is_member(w,keywordWords)) {
return rval(state,stream,"keyword");
}else if (is_member(w,operatorAtomWords)) {
return rval(state,stream,"operator");
}else if (stream.match(/\s*\(/,false)) {
// 'put' and 'erlang:put' are bifs, 'foo:put' is not
if (is_member(w,bifWords) &&
((peekToken(state).token != ":") ||
(peekToken(state,2).token == "erlang"))) {
return rval(state,stream,"builtin");
}else if (is_member(w,guardWords)) {
return rval(state,stream,"guard");
}else{
return rval(state,stream,"function");
}
}else if (lookahead(stream) == ":") {
if (w == "erlang") {
return rval(state,stream,"builtin");
} else {
return rval(state,stream,"function");
}
}else if (is_member(w,["true","false"])) {
return rval(state,stream,"boolean");
}else{
return rval(state,stream,"atom");
}
}
// number
var digitRE = /[0-9]/;
var radixRE = /[0-9a-zA-Z]/; // 36#zZ style int
if (digitRE.test(ch)) {
stream.eatWhile(digitRE);
if (stream.eat('#')) { // 36#aZ style integer
if (!stream.eatWhile(radixRE)) {
stream.backUp(1); //"36#" - syntax error
}
} else if (stream.eat('.')) { // float
if (!stream.eatWhile(digitRE)) {
stream.backUp(1); // "3." - probably end of function
} else {
if (stream.eat(/[eE]/)) { // float with exponent
if (stream.eat(/[-+]/)) {
if (!stream.eatWhile(digitRE)) {