From ef8cdd36436ef1bd1303886a101c8ee60c6f9721 Mon Sep 17 00:00:00 2001
From: ben
Date: Tue, 18 Sep 2018 10:28:07 +0200
Subject: Initial public commit

---
 static/repl.js | 105 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 static/repl.js

(limited to 'static/repl.js')

diff --git a/static/repl.js b/static/repl.js
new file mode 100644
index 0000000..391e4ea
--- /dev/null
+++ b/static/repl.js
@@ -0,0 +1,105 @@
+$(function () {
+    var repl = new CodeMirrorREPL('interactive', {
+            mode: "python",
+            theme: "solarized dark"
+        }),
+        compilableLines = [],
+        //finds lines starting with "print" 
+        re = new RegExp("\\s*print"),
+        //finds import statements
+        importre = new RegExp("\\s*import"),
+        //finds multuline string constants
+        mls = new RegExp("'''"),
+        //finds defining statements
+        defre = new RegExp("def.*|class.*"),
+        //test for empty line.
+        emptyline = new RegExp("^\\s*$"),
+        //a regex to check if a line is an assignment
+        //this regex checks whether or not a line starts with 
+        //an identifier followed with some whitspace and then an = and then some more white space.
+        //it also checks if the identifier is a tuple.
+        assignment = /^((\s*\(\s*(\s*((\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*)|(\s*\(\s*(\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*,)*\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*\)\s*))\s*,)*\s*((\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*)|(\s*\(\s*(\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*,)*\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*\)\s*))\s*\)\s*)|(\s*\s*(\s*((\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*)|(\s*\(\s*(\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*,)*\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*\)\s*))\s*,)*\s*((\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*)|(\s*\(\s*(\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*,)*\s*((\s*[_a-zA-Z]\w*\s*)|(\s*\(\s*(\s*[_a-zA-Z]\w*\s*,)*\s*[_a-zA-Z]\w*\s*\)\s*))\s*\)\s*))\s*\s*))=/;
+
+    repl.print("Connection as "+ localStorage.getItem("user") +" granted");
+    repl.print("Python 2.6.7 (default, " + new Date("2017-04-13T18:24:12") + ")");
+
+    repl.isBalanced = function (code) {
+        var lines = code.split('\n'),
+            depth = 0,
+            mlsopened = false,
+			l;
+        
+        for (l = 0; l < lines.length; l = l + 1) {
+            if (lines[l].match(/'''/) !== null && lines[l].match(/'''/).length === 1) {
+                mlsopened = !mlsopened;
+            }
+            if (!mlsopened && lines[l].substr(lines[l].length - 1) === ":") {
+                depth = depth + 1;
+            }
+            if (!mlsopened && lines[l] === "" && depth > 0) {
+                depth = 0   ;
+            }
+        }
+        return depth === 0 && !mlsopened;
+    };
+
+    //Loop
+    repl.eval = function (code) {
+        Sk.configure({ 
+            output: function(str) {
+                //strip out line-feeds
+                if (str.replace(/\n/g, "") !== "") {
+                    repl.print(str);
+                }
+            },
+            read: function (x) {
+                if (Sk.builtinFiles === undefined || Sk.builtinFiles["files"][x] === undefined) {
+                    throw "File not found: '" + x + "'";
+				}
+                return Sk.builtinFiles["files"][x];
+            },
+			retainglobals: true
+        });
+            
+        //split lines on linefeed
+        var lines = code.split('\n'), index = -1, line = 0;
+
+        //it's a onliner
+        if (lines.length === 1) {
+            //if it's a statement that should be printed (not containing an = or def or class or an empty line)
+            if (!assignment.test(lines[0]) && !defre.test(lines[0]) && !importre.test(lines[0]) && lines[0].length > 0) {
+                //if it doesn't contain print make sure it doesn't print None
+                if (!re.test(lines[0])) {
+                    //remove the statement
+                    //evaluate it if nessecary
+                    lines.push("evaluationresult = " + lines.pop());
+                    //print the result if not None
+                    lines.push("if not evaluationresult == None: print repr(evaluationresult)");
+                }
+            }
+        }
+
+		try {
+            //Evaluate
+            if (!lines || /^\s*$/.test(lines)) {
+                return;
+            }
+            else {
+                Sk.importMainWithBody("repl", false, lines.join('\n'));            
+            }
+        } catch (err) {
+            repl.print(err);
+
+            //find the line number
+            if ((index = err.toString().indexOf("on line")) !== -1) {
+                index = parseInt(err.toString().substr(index + 8), 10);
+            }
+			
+            //print the accumulated code with a ">" before the broken line.
+            //Don't add the last statement to the accumulated code
+            lines.forEach(function (str) {
+                repl.print(++line + (index === line ? ">" : " ") + ": " + str);
+            });
+        }
+    };
+});
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