--- /dev/null
+// block; "begin", "case", "fun", "if", "receive", "try": closed by "end"
+// block internal; "after", "catch", "of"
+// guard; "when", closed by "->"
+// "->" opens a clause, closed by ";" or "."
+// "<<" opens a binary, closed by ">>"
+// "," appears in arglists, lists, tuples and terminates lines of code
+// "." resets indentation to 0
+// obsolete; "cond", "let", "query"
+
+CodeMirror.defineMIME("text/x-erlang", "erlang");
+
+CodeMirror.defineMode("erlang", function(cmCfg) {
+
+ function rval(state,stream,type) {
+ // distinguish between "." as terminator and record field operator
+ if (type == "record") {
+ state.context = "record";
+ }else{
+ state.context = false;
+ }
+
+ // remember last significant bit on last line for indenting
+ if (type != "whitespace" && type != "comment") {
+ state.lastToken = stream.current();
+ }
+ // erlang -> CodeMirror tag
+ switch (type) {
+ case "atom": return "atom";
+ case "attribute": return "attribute";
+ case "builtin": return "builtin";
+ case "comment": return "comment";
+ 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 "operator": return "operator";
+ case "record": return "bracket";
+ case "string": return "string";
+ case "type": return "def";
+ case "variable": return "variable";
+ case "error": return "error";
+ case "separator": return null;
+ case "open_paren": return null;
+ case "close_paren": return null;
+ default: return null;
+ }
+ }
+
+ var typeWords = [
+ "-type", "-spec", "-export_type", "-opaque"];
+
+ var keywordWords = [
+ "after","begin","catch","case","cond","end","fun","if",
+ "let","of","query","receive","try","when"];
+
+ var separatorWords = [
+ "->",";",":",".",","];
+
+ var operatorWords = [
+ "and","andalso","band","bnot","bor","bsl","bsr","bxor",
+ "div","not","or","orelse","rem","xor"];
+
+ var symbolWords = [
+ "+","-","*","/",">",">=","<","=<","=:=","==","=/=","/=","||","<-"];
+
+ var openParenWords = [
+ "<<","(","[","{"];
+
+ 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"];
+
+ // ignored for indenting purposes
+ var ignoreWords = [
+ ",", ":", "catch", "after", "of", "cond", "let", "query"];
+
+
+ var smallRE = /[a-z_]/;
+ var largeRE = /[A-Z_]/;
+ var digitRE = /[0-9]/;
+ var octitRE = /[0-7]/;
+ var anumRE = /[a-z_A-Z0-9]/;
+ var symbolRE = /[\+\-\*\/<>=\|:]/;
+ var openParenRE = /[<\(\[\{]/;
+ var closeParenRE = /[>\)\]\}]/;
+ var sepRE = /[\->\.,:;]/;
+
+ function isMember(element,list) {
+ return (-1 < list.indexOf(element));
+ }
+
+ function isPrev(stream,string) {
+ var start = stream.start;
+ var len = string.length;
+ if (len <= start) {
+ var word = stream.string.slice(start-len,start);
+ return word == string;
+ }else{
+ return false;
+ }
+ }
+
+ function tokenize(stream, state) {
+ if (stream.eatSpace()) {
+ return rval(state,stream,"whitespace");
+ }
+
+ // attributes and type specs
+ if ((peekToken(state).token == "" || peekToken(state).token == ".") &&
+ stream.peek() == '-') {
+ stream.next();
+ if (stream.eat(smallRE) && stream.eatWhile(anumRE)) {
+ if (isMember(stream.current(),typeWords)) {
+ return rval(state,stream,"type");
+ }else{
+ return rval(state,stream,"attribute");
+ }
+ }
+ stream.backUp(1);
+ }
+
+ var ch = stream.next();
+
+ // comment
+ if (ch == '%') {
+ stream.skipToEnd();
+ return rval(state,stream,"comment");
+ }
+
+ // macro
+ if (ch == '?') {
+ stream.eatWhile(anumRE);
+ return rval(state,stream,"macro");
+ }
+
+ // record
+ if ( ch == "#") {
+ stream.eatWhile(anumRE);
+ return rval(state,stream,"record");
+ }
+
+ // char
+ if ( ch == "$") {
+ if (stream.next() == "\\") {
+ if (!stream.eatWhile(octitRE)) {
+ stream.next();
+ }
+ }
+ return rval(state,stream,"string");
+ }
+
+ // quoted atom
+ if (ch == '\'') {
+ if (singleQuote(stream)) {
+ return rval(state,stream,"atom");
+ }else{
+ return rval(state,stream,"error");
+ }
+ }
+
+ // string
+ if (ch == '"') {
+ if (doubleQuote(stream)) {
+ return rval(state,stream,"string");
+ }else{
+ return rval(state,stream,"error");
+ }
+ }
+
+ // variable
+ if (largeRE.test(ch)) {
+ stream.eatWhile(anumRE);
+ return rval(state,stream,"variable");
+ }
+
+ // atom/keyword/BIF/function
+ if (smallRE.test(ch)) {
+ stream.eatWhile(anumRE);
+
+ if (stream.peek() == "/") {
+ stream.next();
+ if (stream.eatWhile(digitRE)) {
+ return rval(state,stream,"fun"); // f/0 style fun
+ }else{
+ stream.backUp(1);
+ return rval(state,stream,"atom");
+ }
+ }
+
+ var w = stream.current();
+
+ if (isMember(w,keywordWords)) {
+ pushToken(state,stream);
+ return rval(state,stream,"keyword");
+ }
+ if (stream.peek() == "(") {
+ // 'put' and 'erlang:put' are bifs, 'foo:put' is not
+ if (isMember(w,bifWords) &&
+ (!isPrev(stream,":") || isPrev(stream,"erlang:"))) {
+ return rval(state,stream,"builtin");
+ }else{
+ return rval(state,stream,"function");
+ }
+ }
+ if (isMember(w,guardWords)) {
+ return rval(state,stream,"guard");
+ }
+ if (isMember(w,operatorWords)) {
+ return rval(state,stream,"operator");
+ }
+ if (stream.peek() == ":") {
+ if (w == "erlang") {
+ return rval(state,stream,"builtin");
+ } else {
+ return rval(state,stream,"function");
+ }
+ }
+ return rval(state,stream,"atom");
+ }
+
+ // number
+ if (digitRE.test(ch)) {
+ stream.eatWhile(digitRE);
+ if (stream.eat('#')) {
+ stream.eatWhile(digitRE); // 16#10 style integer
+ } else {
+ if (stream.eat('.')) { // float
+ stream.eatWhile(digitRE);
+ }
+ if (stream.eat(/[eE]/)) {
+ stream.eat(/[-+]/); // float with exponent
+ stream.eatWhile(digitRE);
+ }
+ }
+ return rval(state,stream,"number"); // normal integer
+ }
+
+ // open parens
+ if (nongreedy(stream,openParenRE,openParenWords)) {
+ pushToken(state,stream);
+ return rval(state,stream,"open_paren");
+ }
+
+ // close parens
+ if (nongreedy(stream,closeParenRE,closeParenWords)) {
+ pushToken(state,stream);
+ return rval(state,stream,"close_paren");
+ }
+
+ // separators
+ if (greedy(stream,sepRE,separatorWords)) {
+ // distinguish between "." as terminator and record field operator
+ if (state.context == false) {
+ pushToken(state,stream);
+ }
+ return rval(state,stream,"separator");
+ }
+
+ // operators
+ if (greedy(stream,symbolRE,symbolWords)) {
+ return rval(state,stream,"operator");
+ }
+
+ return rval(state,stream,null);
+ }
+
+ 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 (isMember(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 (isMember(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 Token(stream) {
+ this.token = stream ? stream.current() : "";
+ this.column = stream ? stream.column() : 0;
+ this.indent = stream ? stream.indentation() : 0;
+ }
+
+ function myIndent(state,textAfter) {
+ var indent = cmCfg.indentUnit;
+ var outdentWords = ["after","catch"];
+ var token = (peekToken(state)).token;
+ var wordAfter = takewhile(textAfter,/[^a-z]/);
+
+ if (isMember(token,openParenWords)) {
+ return (peekToken(state)).column+token.length;
+ }else if (token == "." || token == ""){
+ return 0;
+ }else if (token == "->") {
+ if (wordAfter == "end") {
+ return peekToken(state,2).column;
+ }else if (peekToken(state,2).token == "fun") {
+ return peekToken(state,2).column+indent;
+ }else{
+ return (peekToken(state)).indent+indent;
+ }
+ }else if (isMember(wordAfter,outdentWords)) {
+ return (peekToken(state)).indent;
+ }else{
+ return (peekToken(state)).column+indent;
+ }
+ }
+
+ function takewhile(str,re) {
+ var m = str.match(re);
+ return m ? str.slice(0,m.index) : str;
+ }
+
+ function popToken(state) {
+ return state.tokenStack.pop();
+ }
+
+ function peekToken(state,depth) {
+ var len = state.tokenStack.length;
+ var dep = (depth ? depth : 1);
+ if (len < dep) {
+ return new Token;
+ }else{
+ return state.tokenStack[len-dep];
+ }
+ }
+
+ function pushToken(state,stream) {
+ var token = stream.current();
+ var prev_token = peekToken(state).token;
+ if (isMember(token,ignoreWords)) {
+ return false;
+ }else if (drop_both(prev_token,token)) {
+ popToken(state);
+ return false;
+ }else if (drop_first(prev_token,token)) {
+ popToken(state);
+ return pushToken(state,stream);
+ }else{
+ state.tokenStack.push(new Token(stream));
+ return true;
+ }
+ }
+
+ function drop_first(open, close) {
+ switch (open+" "+close) {
+ case "when ->": return true;
+ case "-> end": return true;
+ case "-> .": return true;
+ case ". .": return true;
+ default: return false;
+ }
+ }
+
+ function drop_both(open, close) {
+ switch (open+" "+close) {
+ case "( )": return true;
+ case "[ ]": return true;
+ case "{ }": return true;
+ case "<< >>": return true;
+ case "begin end": return true;
+ case "case end": return true;
+ case "fun end": return true;
+ case "if end": return true;
+ case "receive end": return true;
+ case "try end": return true;
+ case "-> ;": return true;
+ default: return false;
+ }
+ }
+
+ return {
+ startState:
+ function() {
+ return {tokenStack: [],
+ context: false,
+ lastToken: null};
+ },
+
+ token:
+ function(stream, state) {
+ return tokenize(stream, state);
+ },
+
+ indent:
+ function(state, textAfter) {
+ return myIndent(state,textAfter);
+ },
+
+ lineComment: "%"
+ };
+});
git://git.onelab.eu / myslice.git / blobdiff