Adding ignore feature

README.md

@@ -391,6 +391,17 @@ require('postcss-font-magician')({
 By default, 'http/https' protocol is removed from the font url.
 Supports any string values, eg - '', 'http:' or 'https:'
 
+## Ignore
+
+If you don't need Font Magician in some part of your CSS, you can use control comments to disable it.
+
+```css
+
+body {
+    /* font-magician: ignore-next */
+    font-family: "Alice"; /* will not generate font-face */
+}
+```
 
 ## Future
 

index.js

@@ -301,6 +301,18 @@ function getFontFaceRules(family, foundries, options) {
     return fontFaceRules;
 }
 
+function isRuleIgnored(rule) {
+    let previous = rule.prev();
+
+    if (
+        previous &&
+        previous.type === 'comment' &&
+        /(!\s*)?font-magician:\s*ignore(-|\s+)next/i.test(previous.text)
+    ) {
+        return true;
+    }
+}
+
 function plugin(initialOptions) {
     // get configured option
     const options = getConfiguredOptions(initialOptions || {});
@@ -356,8 +368,10 @@ function plugin(initialOptions) {
                     // set the font family
                     const family = getQuoteless(decl.value);
 
-                    // set the font family as declared
-                    fontFamiliesDeclared[family] = true;
+                    if (!isRuleIgnored(decl)) {
+                        // set the font family as declared
+                        fontFamiliesDeclared[family] = true;
+                    }
                 });
             });
 

test/index.js

@@ -375,4 +375,24 @@ describe('postcss-font-magician', function() {
             done
         );
     });
+
+    it('supports ignoring a declaration', function (done) {
+        test(
+            'a{/* font-magician: ignore next */font-family:"Alice"}b{}',
+
+            'a{/* font-magician: ignore next */font-family:"Alice"}b{}',
+
+            {},
+            done
+        );
+
+        test(
+            'a{/* font-magician: ignore-next */font-family:"Alice"}b{}',
+
+            'a{/* font-magician: ignore-next */font-family:"Alice"}b{}',
+
+            {},
+            done
+        );
+    });
 });