1 files changed, 251 insertions, 0 deletions

diff --git a/imports/codemirror/mode/erlang/erlang.js b/imports/codemirror/mode/erlang/erlang.js
new file mode 100644
index 00000000..5c094f8e
--- /dev/null
+++ b/imports/codemirror/mode/erlang/erlang.js
@@ -0,0 +1,251 @@
+// erlang    -> CodeMirror tag
+//
+// atom      -> atom
+// attribute -> attribute
+// builtin   -> builtin
+// comment   -> comment
+// error     -> error
+// fun       -> meta
+// function  -> tag
+// guard     -> property
+// keyword   -> keyword
+// macro     -> variable-2
+// number    -> number
+// operator  -> operator
+// record    -> bracket
+// string    -> string
+// type      -> def
+// variable  -> variable
+
+CodeMirror.defineMIME("text/x-erlang", "erlang");
+
+CodeMirror.defineMode("erlang", function(cmCfg, modeCfg) {
+
+  var typeWords = [
+    "-type", "-spec", "-export_type", "-opaque"];
+
+  var keywordWords = [
+    "after","begin","catch","case","cond","end","fun","if",
+    "let","of","query","receive","try","when"];
+
+  var operatorWords = [
+    "and","andalso","band","bnot","bor","bsl","bsr","bxor",
+    "div","not","or","orelse","rem","xor"];
+
+  var operatorSymbols = [
+    "+","-","*","/",">",">=","<","=<","=:=","==","=/=","/=","||","<-"];
+
+  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"];
+
+  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;
+    }
+  }
+
+  var smallRE = /[a-z_]/;
+  var largeRE = /[A-Z_]/;
+  var digitRE = /[0-9]/;
+  var octitRE = /[0-7]/;
+  var idRE = /[a-z_A-Z0-9]/;
+
+  function tokenize(stream, state) {
+    if (stream.eatSpace()) {
+      return null;
+    }
+
+    // attributes and type specs
+    if (stream.sol() && stream.peek() == '-') {
+      stream.next();
+      if (stream.eat(smallRE) && stream.eatWhile(idRE)) {
+        if (stream.peek() == "(") {
+          return "attribute";
+        }else if (isMember(stream.current(),typeWords)) {
+          return "def";
+        }else{
+          return null;
+        }
+      }
+      stream.backUp(1);
+    }
+
+    var ch = stream.next();
+
+    // comment
+    if (ch == '%') {
+      stream.skipToEnd();
+      return "comment";
+    }
+
+    // macro
+    if (ch == '?') {
+      stream.eatWhile(idRE);
+      return "variable-2";
+    }
+
+    // record
+    if ( ch == "#") {
+      stream.eatWhile(idRE);
+      return "bracket";
+    }
+
+    // char
+    if ( ch == "$") {
+      if (stream.next() == "\\") {
+        if (!stream.eatWhile(octitRE)) {
+          stream.next();
+        }
+      }
+      return "string";
+    }
+
+    // quoted atom
+    if (ch == '\'') {
+      return singleQuote(stream);
+    }
+
+    // string
+    if (ch == '"') {
+      return doubleQuote(stream);
+    }
+
+    // variable
+    if (largeRE.test(ch)) {
+      stream.eatWhile(idRE);
+      return "variable";
+    }
+
+    // atom/keyword/BIF/function
+    if (smallRE.test(ch)) {
+      stream.eatWhile(idRE);
+
+      if (stream.peek() == "/") {
+        stream.next();
+        if (stream.eatWhile(digitRE)) {
+          return "meta";      // f/0 style fun
+        }else{
+          stream.backUp(1);
+          return "atom";
+        }
+      }
+
+      var w = stream.current();
+
+      if (isMember(w,keywordWords)) {
+        return "keyword";           // keyword
+      }
+      if (stream.peek() == "(") {
+        if (isMember(w,bifWords) &&
+            (!isPrev(stream,":") || isPrev(stream,"erlang:"))) {
+          return "builtin";         // BIF
+        }else{
+          return "tag";             // function
+        }
+      }
+      if (isMember(w,guardWords)) {
+        return "property";          // guard
+      }
+      if (isMember(w,operatorWords)) {
+        return "operator";          // operator
+      }
+
+
+      if (stream.peek() == ":") {
+        if (w == "erlang") {         // f:now() is highlighted incorrectly
+          return "builtin";
+        } else {
+          return "tag";              // function application
+        }
+      }
+
+      return "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 "number";               // normal integer
+    }
+
+    return null;
+  }
+
+  function doubleQuote(stream) {
+    return Quote(stream, '"', '\\', "string");
+  }
+
+  function singleQuote(stream) {
+    return Quote(stream,'\'','\\',"atom");
+  }
+
+  function Quote(stream,quoteChar,escapeChar,tag) {
+    while (!stream.eol()) {
+      var ch = stream.next();
+      if (ch == quoteChar) {
+        return tag;
+      }else if (ch == escapeChar) {
+        stream.next();
+      }