FBI-1684: [MANTIS - 22275] Scroll in trigger editor jumps several lines up when

scrolling with the mouse scroll wheel

resolve observations

gulliver/js/codemirror/mode/ruby/ruby.js

@@ -1,3 +1,16 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(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("ruby", function(config) {
   function wordObj(words) {
     var o = {};
@@ -12,7 +25,7 @@ CodeMirror.defineMode("ruby", function(config) {
     "caller", "lambda", "proc", "public", "protected", "private", "require", "load",
     "require_relative", "extend", "autoload", "__END__", "__FILE__", "__LINE__", "__dir__"
   ]);
-  var indentWords = wordObj(["def", "class", "case", "for", "while", "module", "then",
+  var indentWords = wordObj(["def", "class", "case", "for", "while", "until", "module", "then",
                              "catch", "loop", "proc", "begin"]);
   var dedentWords = wordObj(["end", "until"]);
   var matching = {"[": "]", "{": "}", "(": ")"};
@@ -24,7 +37,6 @@ CodeMirror.defineMode("ruby", function(config) {
   }
 
   function tokenBase(stream, state) {
-    curPunc = null;
     if (stream.sol() && stream.match("=begin") && stream.eol()) {
       state.tokenize.push(readBlockComment);
       return "comment";
@@ -33,15 +45,18 @@ CodeMirror.defineMode("ruby", function(config) {
     var ch = stream.next(), m;
     if (ch == "`" || ch == "'" || ch == '"') {
       return chain(readQuoted(ch, "string", ch == '"' || ch == "`"), stream, state);
-    } else if (ch == "/" && !stream.eol() && stream.peek() != " ") {
-      return chain(readQuoted(ch, "string-2", true), stream, state);
+    } else if (ch == "/") {
+      if (regexpAhead(stream))
+        return chain(readQuoted(ch, "string-2", true), stream, state);
+      else
+        return "operator";
     } else if (ch == "%") {
       var style = "string", embed = true;
       if (stream.eat("s")) style = "atom";
       else if (stream.eat(/[WQ]/)) style = "string";
       else if (stream.eat(/[r]/)) style = "string-2";
       else if (stream.eat(/[wxq]/)) { style = "string"; embed = false; }
-      var delim = stream.eat(/[^\w\s]/);
+      var delim = stream.eat(/[^\w\s=]/);
       if (!delim) return "operator";
       if (matching.propertyIsEnumerable(delim)) delim = matching[delim];
       return chain(readQuoted(delim, style, embed, true), stream, state);
@@ -79,16 +94,16 @@ CodeMirror.defineMode("ruby", function(config) {
       }
 
       // Symbols can't start by a digit
-      if (stream.eat(/[a-zA-Z$@_]/)) {
-        stream.eatWhile(/[\w]/);
+      if (stream.eat(/[a-zA-Z$@_\xa1-\uffff]/)) {
+        stream.eatWhile(/[\w$\xa1-\uffff]/);
         // Only one ? ! = is allowed and only as the last character
         stream.eat(/[\?\!\=]/);
         return "atom";
       }
       return "operator";
-    } else if (ch == "@" && stream.match(/^@?[a-zA-Z_]/)) {
+    } else if (ch == "@" && stream.match(/^@?[a-zA-Z_\xa1-\uffff]/)) {
       stream.eat("@");
-      stream.eatWhile(/[\w]/);
+      stream.eatWhile(/[\w\xa1-\uffff]/);
       return "variable-2";
     } else if (ch == "$") {
       if (stream.eat(/[a-zA-Z_]/)) {
@@ -99,8 +114,8 @@ CodeMirror.defineMode("ruby", function(config) {
         stream.next(); // Must be a special global like $: or $!
       }
       return "variable-3";
-    } else if (/[a-zA-Z_]/.test(ch)) {
-      stream.eatWhile(/[\w]/);
+    } else if (/[a-zA-Z_\xa1-\uffff]/.test(ch)) {
+      stream.eatWhile(/[\w\xa1-\uffff]/);
       stream.eat(/[\?\!]/);
       if (stream.eat(":")) return "atom";
       return "ident";
@@ -113,24 +128,48 @@ CodeMirror.defineMode("ruby", function(config) {
     } else if (ch == "-" && stream.eat(">")) {
       return "arrow";
     } else if (/[=+\-\/*:\.^%<>~|]/.test(ch)) {
-      stream.eatWhile(/[=+\-\/*:\.^%<>~|]/);
+      var more = stream.eatWhile(/[=+\-\/*:\.^%<>~|]/);
+      if (ch == "." && !more) curPunc = ".";
       return "operator";
     } else {
       return null;
     }
   }
 
-  function tokenBaseUntilBrace() {
-    var depth = 1;
+  function regexpAhead(stream) {
+    var start = stream.pos, depth = 0, next, found = false, escaped = false
+    while ((next = stream.next()) != null) {
+      if (!escaped) {
+        if ("[{(".indexOf(next) > -1) {
+          depth++
+        } else if ("]})".indexOf(next) > -1) {
+          depth--
+          if (depth < 0) break
+        } else if (next == "/" && depth == 0) {
+          found = true
+          break
+        }
+        escaped = next == "\\"
+      } else {
+        escaped = false
+      }
+    }
+    stream.backUp(stream.pos - start)
+    return found
+  }
+
+  function tokenBaseUntilBrace(depth) {
+    if (!depth) depth = 1;
     return function(stream, state) {
       if (stream.peek() == "}") {
-        depth--;
-        if (depth == 0) {
+        if (depth == 1) {
           state.tokenize.pop();
           return state.tokenize[state.tokenize.length-1](stream, state);
+        } else {
+          state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth - 1);
         }
       } else if (stream.peek() == "{") {
-        depth++;
+        state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth + 1);
       }
       return tokenBase(stream, state);
     };
@@ -202,22 +241,28 @@ CodeMirror.defineMode("ruby", function(config) {
     },
 
     token: function(stream, state) {
+      curPunc = null;
       if (stream.sol()) state.indented = stream.indentation();
       var style = state.tokenize[state.tokenize.length-1](stream, state), kwtype;
+      var thisTok = curPunc;
       if (style == "ident") {
         var word = stream.current();
-        style = keywords.propertyIsEnumerable(stream.current()) ? "keyword"
+        style = state.lastTok == "." ? "property"
+          : keywords.propertyIsEnumerable(stream.current()) ? "keyword"
           : /^[A-Z]/.test(word) ? "tag"
           : (state.lastTok == "def" || state.lastTok == "class" || state.varList) ? "def"
           : "variable";
-        if (indentWords.propertyIsEnumerable(word)) kwtype = "indent";
-        else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent";
-        else if ((word == "if" || word == "unless") && stream.column() == stream.indentation())
-          kwtype = "indent";
-        else if (word == "do" && state.context.indented < state.indented)
-          kwtype = "indent";
+        if (style == "keyword") {
+          thisTok = word;
+          if (indentWords.propertyIsEnumerable(word)) kwtype = "indent";
+          else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent";
+          else if ((word == "if" || word == "unless") && stream.column() == stream.indentation())
+            kwtype = "indent";
+          else if (word == "do" && state.context.indented < state.indented)
+            kwtype = "indent";
+        }
       }
-      if (curPunc || (style && style != "comment")) state.lastTok = word || curPunc || style;
+      if (curPunc || (style && style != "comment")) state.lastTok = thisTok;
       if (curPunc == "|") state.varList = !state.varList;
 
       if (kwtype == "indent" || /[\(\[\{]/.test(curPunc))
@@ -240,10 +285,11 @@ CodeMirror.defineMode("ruby", function(config) {
         (state.continuedLine ? config.indentUnit : 0);
     },
 
-    electricChars: "}de", // enD and rescuE
+    electricInput: /^\s*(?:end|rescue|elsif|else|\})$/,
     lineComment: "#"
   };
 });
 
 CodeMirror.defineMIME("text/x-ruby", "ruby");
 
+});