Workaround to fix semicolon syntax issue with keyframes

Context: Lessc is adding a semicolon at the end of keyframes definition, which is
invalid css and causes issues on some devices.  This also creates issues
if you use anything that parses your css.

This adds a noop rule at the end of each keyframes definition, leading
to valid css

Author: arbylee

build/lesshat-prefixed.less

@@ -6,7 +6,7 @@
 // Handcrafted by Petr Brzek, lesshat.com
 // Works great with CSS Hat csshat.com
 
-// version: v3.0.2 (2014-06-26)
+// version: v3.0.2 (2014-12-19)
 
 // TABLE OF MIXINS:
 	// align-content
@@ -505,7 +505,7 @@
 }
 
 .lh-keyframes(...) {
-  @process: ~`(function(e){function r(r,t,c){var i="}\n",u=n.split(/(^[a-zA-Z0-9-]+),/g),s=t+" "+u[1]+"{",o=["-webkit-","-moz-","-ms-",""];c?a.forEach(function(r){-1!==e.indexOf(r)&&(u[2]=u[2].replace(new RegExp(r,"g"),function(e){return c+e}))}):u[2]=u[2].replace(/{([^}]+)}/g,function(e,r){var t=r.split(";");t.forEach(function(e,r){a.forEach(function(n){-1!==e.indexOf(n)&&(t[r]="",o.forEach(function(a){t[r]+=e.trim().replace(new RegExp(n,"g"),function(e){return a+e})+";"}))})});var n=t.join(";").replace(/;;/g,";");return e.replace(r,n)}),s+=u[2]+i,"start"==r?e="0; } \n"+s:"startend"==r?e="0; } \n"+s.replace(i,""):e+="end"==r?s.replace(i,""):s}e=e||8121991;var t="@{state}",n=e;if(8121991==e)return e;var a=["animation","transform","filter"];switch(t){case"1":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"2":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"3":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"4":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"5":r("start","@-webkit-keyframes","-webkit-"),r("end","@-moz-keyframes","-moz-");break;case"6":r("start","@-webkit-keyframes","-webkit-"),r("end","@-o-keyframes","-o-");break;case"7":r("start","@-webkit-keyframes","-webkit-"),r("end","@keyframes");break;case"8":r("startend","@-webkit-keyframes","-webkit-");break;case"9":r("start","@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"10":r("start","@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"11":r("start","@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"12":r("startend","@-moz-keyframes","-moz-");break;case"13":r("start","@-o-keyframes","-o-"),r("end","@keyframes");break;case"14":r("startend","@-o-keyframes","-o-");break;case"15":r("startend","@keyframes")}return e})((function(){var e="@{arguments}";return e=e.replace(/^\[|\]$/g,"")})())`;
+  @process: ~`(function(e){function r(r,t,c){var i="}\n",u=n.split(/(^[a-zA-Z0-9-]+),/g),s=t+" "+u[1]+"{",o=["-webkit-","-moz-","-ms-",""];c?a.forEach(function(r){-1!==e.indexOf(r)&&(u[2]=u[2].replace(new RegExp(r,"g"),function(e){return c+e}))}):u[2]=u[2].replace(/{([^}]+)}/g,function(e,r){var t=r.split(";");t.forEach(function(e,r){a.forEach(function(n){-1!==e.indexOf(n)&&(t[r]="",o.forEach(function(a){t[r]+=e.trim().replace(new RegExp(n,"g"),function(e){return a+e})+";"}))})});var n=t.join(";").replace(/;;/g,";");return e.replace(r,n)}),s+=u[2]+i,"start"==r?e="0; } \n"+s:"startend"==r?e="0; } \n"+s.replace(i,""):e+="end"==r?s.replace(i,""):s}e=e||8121991;var t="@{state}",n=e;if(8121991==e)return e;var a=["animation","transform","filter"];switch(t){case"1":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"2":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"3":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"4":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"5":r("start","@-webkit-keyframes","-webkit-"),r("end","@-moz-keyframes","-moz-");break;case"6":r("start","@-webkit-keyframes","-webkit-"),r("end","@-o-keyframes","-o-");break;case"7":r("start","@-webkit-keyframes","-webkit-"),r("end","@keyframes");break;case"8":r("startend","@-webkit-keyframes","-webkit-");break;case"9":r("start","@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"10":r("start","@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"11":r("start","@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"12":r("startend","@-moz-keyframes","-moz-");break;case"13":r("start","@-o-keyframes","-o-"),r("end","@keyframes");break;case"14":r("startend","@-o-keyframes","-o-");break;case"15":r("startend","@keyframes")}return e+="\n lh-keyframes-noop { -lh-keyframes-noop: noop }"})((function(){var e="@{arguments}";return e=e.replace(/^\[|\]$/g,"")})())`;
   @state: 1; lesshat-selector { -lh-property: @process; }
 
 

build/lesshat.less

@@ -6,7 +6,7 @@
 // Handcrafted by Petr Brzek, lesshat.com
 // Works great with CSS Hat csshat.com
 
-// version: v3.0.2 (2014-06-26)
+// version: v3.0.2 (2014-12-19)
 
 // TABLE OF MIXINS:
 	// align-content
@@ -505,7 +505,7 @@
 }
 
 .keyframes(...) {
-  @process: ~`(function(e){function r(r,t,c){var i="}\n",u=n.split(/(^[a-zA-Z0-9-]+),/g),s=t+" "+u[1]+"{",o=["-webkit-","-moz-","-ms-",""];c?a.forEach(function(r){-1!==e.indexOf(r)&&(u[2]=u[2].replace(new RegExp(r,"g"),function(e){return c+e}))}):u[2]=u[2].replace(/{([^}]+)}/g,function(e,r){var t=r.split(";");t.forEach(function(e,r){a.forEach(function(n){-1!==e.indexOf(n)&&(t[r]="",o.forEach(function(a){t[r]+=e.trim().replace(new RegExp(n,"g"),function(e){return a+e})+";"}))})});var n=t.join(";").replace(/;;/g,";");return e.replace(r,n)}),s+=u[2]+i,"start"==r?e="0; } \n"+s:"startend"==r?e="0; } \n"+s.replace(i,""):e+="end"==r?s.replace(i,""):s}e=e||8121991;var t="@{state}",n=e;if(8121991==e)return e;var a=["animation","transform","filter"];switch(t){case"1":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"2":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"3":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"4":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"5":r("start","@-webkit-keyframes","-webkit-"),r("end","@-moz-keyframes","-moz-");break;case"6":r("start","@-webkit-keyframes","-webkit-"),r("end","@-o-keyframes","-o-");break;case"7":r("start","@-webkit-keyframes","-webkit-"),r("end","@keyframes");break;case"8":r("startend","@-webkit-keyframes","-webkit-");break;case"9":r("start","@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"10":r("start","@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"11":r("start","@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"12":r("startend","@-moz-keyframes","-moz-");break;case"13":r("start","@-o-keyframes","-o-"),r("end","@keyframes");break;case"14":r("startend","@-o-keyframes","-o-");break;case"15":r("startend","@keyframes")}return e})((function(){var e="@{arguments}";return e=e.replace(/^\[|\]$/g,"")})())`;
+  @process: ~`(function(e){function r(r,t,c){var i="}\n",u=n.split(/(^[a-zA-Z0-9-]+),/g),s=t+" "+u[1]+"{",o=["-webkit-","-moz-","-ms-",""];c?a.forEach(function(r){-1!==e.indexOf(r)&&(u[2]=u[2].replace(new RegExp(r,"g"),function(e){return c+e}))}):u[2]=u[2].replace(/{([^}]+)}/g,function(e,r){var t=r.split(";");t.forEach(function(e,r){a.forEach(function(n){-1!==e.indexOf(n)&&(t[r]="",o.forEach(function(a){t[r]+=e.trim().replace(new RegExp(n,"g"),function(e){return a+e})+";"}))})});var n=t.join(";").replace(/;;/g,";");return e.replace(r,n)}),s+=u[2]+i,"start"==r?e="0; } \n"+s:"startend"==r?e="0; } \n"+s.replace(i,""):e+="end"==r?s.replace(i,""):s}e=e||8121991;var t="@{state}",n=e;if(8121991==e)return e;var a=["animation","transform","filter"];switch(t){case"1":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"2":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"3":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"4":r("start","@-webkit-keyframes","-webkit-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"5":r("start","@-webkit-keyframes","-webkit-"),r("end","@-moz-keyframes","-moz-");break;case"6":r("start","@-webkit-keyframes","-webkit-"),r("end","@-o-keyframes","-o-");break;case"7":r("start","@-webkit-keyframes","-webkit-"),r("end","@keyframes");break;case"8":r("startend","@-webkit-keyframes","-webkit-");break;case"9":r("start","@-moz-keyframes","-moz-"),r(null,"@-o-keyframes","-o-"),r("end","@keyframes");break;case"10":r("start","@-moz-keyframes","-moz-"),r("end","@-o-keyframes","-o-");break;case"11":r("start","@-moz-keyframes","-moz-"),r("end","@keyframes");break;case"12":r("startend","@-moz-keyframes","-moz-");break;case"13":r("start","@-o-keyframes","-o-"),r("end","@keyframes");break;case"14":r("startend","@-o-keyframes","-o-");break;case"15":r("startend","@keyframes")}return e+="\n lh-keyframes-noop { -lh-keyframes-noop: noop }"})((function(){var e="@{arguments}";return e=e.replace(/^\[|\]$/g,"")})())`;
   @state: 1; lesshat-selector { -lh-property: @process; }
 
 

mixins/keyframes/keyframes.js

@@ -143,6 +143,7 @@ var keyframes = function keyframes(value) {
 
   }
 
+  value += "\n lh-keyframes-noop { -lh-keyframes-noop: noop }"
   return value;
 };