support a more flexible syntax for "!importan" of mixins. fix #18

Author: Horcrux7

src/com/inet/lib/less/Mixin.java

@@ -52,9 +52,21 @@ class Mixin extends LessObject implements Formattable {
      */
     Mixin( LessObject obj, String name, Operation paramValues, HashMultimap<String,Rule> mixins ) {
         super( obj );
-        if( name.endsWith( "!important" ) ) {
-            important = true;
-            name = name.substring( 0, name.length() - 10 ).trim();
+        if( name.endsWith( "important" ) ) { // it can be "!importan" or "! important"
+            boolean importantTemp = false;
+            LOOP: for( int i = name.length() - 10; i >= 0; i-- ) {
+                switch( name.charAt( i ) ) {
+                    case ' ':
+                        break;
+                    case '!':
+                        importantTemp = true;
+                        name = name.substring( 0, i ).trim();
+                        break LOOP;
+                    default:
+                        break LOOP;
+                }
+            }
+            important = importantTemp;
         } else {
             important = false;
         }

test/com/inet/lib/less/samples/general/important.css

@@ -4,3 +4,15 @@
   color3: #777777 !important;
   color4: #343434 !important;
 }
+.imp0 {
+  a: 0 !important;
+}
+.imp1 {
+  a: 1 !important;
+}
+.imp2 {
+  a: 2 !important;
+}
+.imp3 {
+  a: 3 !important;
+}

test/com/inet/lib/less/samples/general/important.less

@@ -4,3 +4,27 @@
     color3: #777777 ! important;
     color4: #333 + 1 !important;
 }
+
+// import for mixins with different syntax
+
+.imp0 {
+  .mixin! important;
+}
+.imp1 {
+  .mixin (1) !important;
+}
+.imp2 {
+  .mixin (2) ! important;
+}
+
+// ignore important in mixin name
+.imp3 {
+  .mixin_important(3);
+}
+
+.mixin (@a:0) {
+  a:@a;
+}
+.mixin_important (@a) {
+  a:@a !important;
+}