1 files changed, 77 insertions, 0 deletions
diff --git a/javascripts/RegexVis.js b/javascripts/RegexVis.js
new file mode 100644
index 0000000..c14f52f
--- /dev/null
+++ b/javascripts/RegexVis.js
@@ -0,0 +1,77 @@
+/*
+ * RegexParser
+ *
+ */
+function RegexParser(str) {
+    this.str = str;
+}
+
+RegexParser.prototype.parse = function() {
+    for (var i = 0; i < this.str.length; i++) {
+        switch(this.str[i]) {
+            case '(':
+                break;
+            case '|':
+                break;
+            case ')':
+                break
+            case '*':
+                break
+            
+            default:
+                //alert(this.str[i]);
+        }
+    };
+}
+
+
+/*
+ * State
+ *
+ */
+function State(symbol) {
+    if(!symbol) {
+        symbol = '#';
+    }
+    this.symbol    = symbol;
+    this.followUps = [];
+    this.marked    = false;
+}
+
+State.prototype.mark = function(b) {
+    this.marked = b;
+}
+
+State.prototype.setFollowUp = function(index, state) {
+    if (!((index == 0) || (index==1)) ) return;
+    this.followUps[index] = state;
+}
+
+
+/*
+ * Nfa
+ *
+ */
+function Nfa(symbol) {
+    this.startState;
+    this.endState;
+    if (symbol) {
+        this.startState = new State(symbol);
+        this.endState   = new State(false);
+        this.startState.setFollowUp(0, this.endState);
+    }
+}
+
+Nfa.prototype.concatination = function(nfa) {
+    this.endState.setFollowUp(0, nfa);
+    this.endState = nfa.endState;
+}
+
+Nfa.prototype.union = function(nfa) {
+    var s0 = new State();
+    var s1 = new State();
+
+    s0.setFollowUp(0, );
+    s1.setFollowUp(1, );
+}
+