fix repeated term warning

Author: dwarring

dist.ini

@@ -2,5 +2,5 @@
 
 [ReadmeFromPod]
 ; if you want to disable generating README.md from main module's pod, then:
-disable = true
+enabled = false
 [UploadToZef]

lib/CSS/Grammar.rakumod

@@ -38,6 +38,7 @@ grammar CSS::Grammar:ver<0.3.10> {
     token uint     {\d+}
     token op($chr) {$chr}
 
+    # stringchar-regular: printable ASCII chars, except: \ ' "
     token stringchar-regular {<[ \x20 \! \# \$ \% \& \(..\[ \]..\~ ]>+ }
     proto token stringchar {*}
     token stringchar:sym<escape>   { <escape> }
@@ -84,7 +85,7 @@ grammar CSS::Grammar:ver<0.3.10> {
     rule property        { <.ws>? <Ident> ':' }
     rule end-decl        { ';' | <?before '}'> | $ }
 
-    rule color-range     { <num>$<percentage>=[\%]? }
+    rule color-range     { <num>[$<percentage>=\%]? }
 
     proto rule color     {*}
     rule color:sym<rgb>  {:i 'rgb('

lib/CSS/Grammar/AST.rakumod

@@ -68,7 +68,7 @@ class CSS::Grammar::AST {
                 }
 
                 if %terms{$key}:exists {
-                    $.warning("repeated term " ~ $key, $value);
+                    warn "repeated term " ~ $key ~ ':' ~ $value;
                     return Any;
                 }
 

lib/CSS/Grammar/Actions.rakumod

@@ -184,7 +184,7 @@ class CSS::Grammar::Actions {
     method color-range($/) {
         my $range = $<num>.ast.value;
         $range *= 2.55
-            if ~$<percentage>;
+            if $<percentage>;
 
         # clip out-of-range colors, see
         # http://www.w3.org/TR/CSS21/syndata.html#value-def-color