diff --git a/src/luamin.js b/src/luamin.js
index 8e694bb..e00e32f 100644
--- a/src/luamin.js
+++ b/src/luamin.js
@@ -34,6 +34,9 @@ const assert = function(a,b) {
 
 function parseFloat(str, radix) {
     if (!str) return 0;
+    if (!radix || radix === 10) {
+        return Number(str.toString());
+    }
     var parts = str.toString().split(".");
     if (parts.length > 1) {
         return parseInt(parts[0], radix) + parseInt(parts[1], radix) / Math.pow(radix, parts[1].length);
@@ -2600,9 +2603,14 @@ function FormatAst(ast, indentation) {
                 padToken(expr.Token_Op)
             //}
         } else if(expr.Type == "UnopExpr") {
-            //padToken(expr.Token_Op)
             formatExpr(expr.Rhs)
-            padToken(expr.Rhs.GetFirstToken())
+            // Only add a space if the operator is a word like 'not'
+            if (expr.Token_Op.Source === 'not') {
+                padToken(expr.Rhs.GetFirstToken())
+            } else {
+                // Otherwise, squish them together for '-' and '#'
+                trimToken(expr.Rhs.GetFirstToken())
+            }
         } else if(expr.Type == "NumberLiteral" || expr.Type == "StringLiteral"
                 || expr.Type == "NilLiteral" || expr.Type == "BooleanLiteral"
                 || expr.Type == "VargLiteral" || expr.Type == 'HashLiteral')
@@ -3008,7 +3016,12 @@ function StripAst(ast) {
         let firstCh = (typeof tokenB.Source == 'string' ? tokenB.Source : tokenB.Source.toString()).substr(0,1)
 
         if ((lastCh == "-" && firstCh == "-") || (AllIdentChars.includes(lastCh) && AllIdentChars.includes(firstCh)) || (shit && lastCh == ')' && firstCh == '(')) {
-            tokenB.LeadingWhite = shit ? ';' : ' '
+            // Only force a semicolon if it's the specific ')( ' edge case
+            if (shit && lastCh == ')' && firstCh == '(') {
+                tokenB.LeadingWhite = ';';
+            } else {
+                tokenB.LeadingWhite = ' ';
+            }
         } else {
             tokenB.LeadingWhite = ""
         }
@@ -3177,10 +3190,9 @@ function StripAst(ast) {
                     }
 
                     if (stat.SemicolonList[i-1]) {
-                        let lastS = lastChStat.GetLastToken().Source
-                        let firstS = chStat.GetFirstToken().Source
-                        if (bannedCombos[lastS] === null || bannedCombos[lastS] === undefined || !bannedCombos[lastS].includes(firstS)) {
-                            stat.SemicolonList[i-1] = null
+                        let firstS = chStat.GetFirstToken().Source;
+                        if (firstS !== '(' && firstS !== '[') {
+                            stat.SemicolonList[i-1] = null;
                         }
                     }