/home/preegmxb/gymnyou.com/wp-content/plugins/wp-file-manager/lib/codemirror/mode/erlang/erlang.js
// 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)) {
stream.backUp(2); // "2e-" - syntax error
}
} else {
if (!stream.eatWhile(digitRE)) {
stream.backUp(1); // "2e" - syntax error
}
}
}
}
}
return rval(state,stream,"number"); // normal integer
}
// open parens
if (nongreedy(stream,openParenRE,openParenWords)) {
return rval(state,stream,"open_paren");
}
// close parens
if (nongreedy(stream,closeParenRE,closeParenWords)) {
return rval(state,stream,"close_paren");
}
// separators
if (greedy(stream,separatorRE,separatorWords)) {
return rval(state,stream,"separator");
}
// operators
if (greedy(stream,operatorSymbolRE,operatorSymbolWords)) {
return rval(state,stream,"operator");
}
return rval(state,stream,null);
}
/////////////////////////////////////////////////////////////////////////////
// utilities
function nongreedy(stream,re,words) {
if (stream.current().length == 1 && re.test(stream.current())) {
stream.backUp(1);
while (re.test(stream.peek())) {
stream.next();
if (is_member(stream.current(),words)) {
return true;
}
}
stream.backUp(stream.current().length-1);
}
return false;
}
function greedy(stream,re,words) {
if (stream.current().length == 1 && re.test(stream.current())) {
while (re.test(stream.peek())) {
stream.next();
}
while (0 < stream.current().length) {
if (is_member(stream.current(),words)) {
return true;
}else{
stream.backUp(1);
}
}
stream.next();
}
return false;
}
function doubleQuote(stream) {
return quote(stream, '"', '\\');
}
function singleQuote(stream) {
return quote(stream,'\'','\\');
}
function quote(stream,quoteChar,escapeChar) {
while (!stream.eol()) {
var ch = stream.next();
if (ch == quoteChar) {
return true;
}else if (ch == escapeChar) {
stream.next();
}
}
return false;
}
function lookahead(stream) {
var m = stream.match(/([\n\s]+|%[^\n]*\n)*(.)/,false);
return m ? m.pop() : "";
}
function is_member(element,list) {
return (-1 < list.indexOf(element));
}
function rval(state,stream,type) {
// parse stack
pushToken(state,realToken(type,stream));
// map erlang token type to CodeMirror style class
// erlang -> CodeMirror tag
switch (type) {
case "atom": return "atom";
case "attribute": return "attribute";
case "boolean": return "atom";
case "builtin": return "builtin";
case "close_paren": return null;
case "colon": return null;
case "comment": return "comment";
case "dot": return null;
case "error": return "error";
case "fun": return "meta";
case "function": return "tag";
case "guard": return "property";
case "keyword": return "keyword";
case "macro": return "variable-2";
case "number": return "number";
case "open_paren": return null;
case "operator": return "operator";
case "record": return "bracket";
case "separator": return null;
case "string": return "string";
case "type": return "def";
case "variable": return "variable";
default: return null;
}
}
function aToken(tok,col,ind,typ) {
return {token: tok,
column: col,
indent: ind,
type: typ};
}
function realToken(type,stream) {
return aToken(stream.current(),
stream.column(),
stream.indentation(),
type);
}
function fakeToken(type) {
return aToken(type,0,0,type);
}
function peekToken(state,depth) {
var len = state.tokenStack.length;
var dep = (depth ? depth : 1);
if (len < dep) {
return false;
}else{
return state.tokenStack[len-dep];
}
}
function pushToken(state,token) {
if (!(token.type == "comment" || token.type == "whitespace")) {
state.tokenStack = maybe_drop_pre(state.tokenStack,token);
state.tokenStack = maybe_drop_post(state.tokenStack);
}
}
function maybe_drop_pre(s,token) {
var last = s.length-1;
if (0 < last && s[last].type === "record" && token.type === "dot") {
s.pop();
}else if (0 < last && s[last].type === "group") {
s.pop();
s.push(token);
}else{
s.push(token);
}
return s;
}
function maybe_drop_post(s) {
var last = s.length-1;
if (s[last].type === "dot") {
return [];
}
if (s[last].type === "fun" && s[last-1].token === "fun") {
return s.slice(0,last-1);
}
switch (s[s.length-1].token) {
case "}": return d(s,{g:["{"]});
case "]": return d(s,{i:["["]});
case ")": return d(s,{i:["("]});
case ">>": return d(s,{i:["<<"]});
case "end": return d(s,{i:["begin","case","fun","if","receive","try"]});
case ",": return d(s,{e:["begin","try","when","->",
",","(","[","{","<<"]});
case "->": return d(s,{r:["when"],
m:["try","if","case","receive"]});
case ";": return d(s,{E:["case","fun","if","receive","try","when"]});
case "catch":return d(s,{e:["try"]});
case "of": return d(s,{e:["case"]});
case "after":return d(s,{e:["receive","try"]});
default: return s;
}
}
function d(stack,tt) {
// stack is a stack of Token objects.
// tt is an object; {type:tokens}
// type is a char, tokens is a list of token strings.
// The function returns (possibly truncated) stack.
// It will descend the stack, looking for a Token such that Token.token
// is a member of tokens. If it does not find that, it will normally (but
// see "E" below) return stack. If it does find a match, it will remove
// all the Tokens between the top and the matched Token.
// If type is "m", that is all it does.
// If type is "i", it will also remove the matched Token and the top Token.
// If type is "g", like "i", but add a fake "group" token at the top.
// If type is "r", it will remove the matched Token, but not the top Token.
// If type is "e", it will keep the matched Token but not the top Token.
// If type is "E", it behaves as for type "e", except if there is no match,
// in which case it will return an empty stack.
for (var type in tt) {
var len = stack.length-1;
var tokens = tt[type];
for (var i = len-1; -1 < i ; i--) {
if (is_member(stack[i].token,tokens)) {
var ss = stack.slice(0,i);
switch (type) {
case "m": return ss.concat(stack[i]).concat(stack[len]);
case "r": return ss.concat(stack[len]);
case "i": return ss;
case "g": return ss.concat(fakeToken("group"));
case "E": return ss.concat(stack[i]);
case "e": return ss.concat(stack[i]);
}
}
}
}
return (type == "E" ? [] : stack);
}
/////////////////////////////////////////////////////////////////////////////
// indenter
function indenter(state,textAfter) {
var t;
var unit = cmCfg.indentUnit;
var wordAfter = wordafter(textAfter);
var currT = peekToken(state,1);
var prevT = peekToken(state,2);
if (state.in_string || state.in_atom) {
return CodeMirror.Pass;
}else if (!prevT) {
return 0;
}else if (currT.token == "when") {
return currT.column+unit;
}else if (wordAfter === "when" && prevT.type === "function") {
return prevT.indent+unit;
}else if (wordAfter === "(" && currT.token === "fun") {
return currT.column+3;
}else if (wordAfter === "catch" && (t = getToken(state,["try"]))) {
return t.column;
}else if (is_member(wordAfter,["end","after","of"])) {
t = getToken(state,["begin","case","fun","if","receive","try"]);
return t ? t.column : CodeMirror.Pass;
}else if (is_member(wordAfter,closeParenWords)) {
t = getToken(state,openParenWords);
return t ? t.column : CodeMirror.Pass;
}else if (is_member(currT.token,[",","|","||"]) ||
is_member(wordAfter,[",","|","||"])) {
t = postcommaToken(state);
return t ? t.column+t.token.length : unit;
}else if (currT.token == "->") {
if (is_member(prevT.token, ["receive","case","if","try"])) {
return prevT.column+unit+unit;
}else{
return prevT.column+unit;
}
}else if (is_member(currT.token,openParenWords)) {
return currT.column+currT.token.length;
}else{
t = defaultToken(state);
return truthy(t) ? t.column+unit : 0;
}
}
function wordafter(str) {
var m = str.match(/,|[a-z]+|\}|\]|\)|>>|\|+|\(/);
return truthy(m) && (m.index === 0) ? m[0] : "";
}
function postcommaToken(state) {
var objs = state.tokenStack.slice(0,-1);
var i = getTokenIndex(objs,"type",["open_paren"]);
return truthy(objs[i]) ? objs[i] : false;
}
function defaultToken(state) {
var objs = state.tokenStack;
var stop = getTokenIndex(objs,"type",["open_paren","separator","keyword"]);
var oper = getTokenIndex(objs,"type",["operator"]);
if (truthy(stop) && truthy(oper) && stop < oper) {
return objs[stop+1];
} else if (truthy(stop)) {
return objs[stop];
} else {
return false;
}
}
function getToken(state,tokens) {
var objs = state.tokenStack;
var i = getTokenIndex(objs,"token",tokens);
return truthy(objs[i]) ? objs[i] : false;
}
function getTokenIndex(objs,propname,propvals) {
for (var i = objs.length-1; -1 < i ; i--) {
if (is_member(objs[i][propname],propvals)) {
return i;
}
}
return false;
}
function truthy(x) {
return (x !== false) && (x != null);
}
/////////////////////////////////////////////////////////////////////////////
// this object defines the mode
return {
startState:
function() {
return {tokenStack: [],
in_string: false,
in_atom: false};
},
token:
function(stream, state) {
return tokenizer(stream, state);
},
indent:
function(state, textAfter) {
return indenter(state,textAfter);
},
lineComment: "%"
};
});
});
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