Rename lexer constants to indicate fn opener is included

Author: mgreter

src/constants.cpp

@@ -79,11 +79,11 @@ namespace Sass {
     extern const char supports_kwd[]     = "@supports";
     extern const char keyframes_kwd[]    = "keyframes";
     extern const char only_kwd[]         = "only";
-    extern const char rgb_kwd[]          = "rgb(";
+    extern const char rgb_fn_kwd[]       = "rgb(";
     extern const char url_kwd[]          = "url";
-    // extern const char url_prefix_kwd[]   = "url-prefix(";
+    // extern const char url_prefix_fn_kwd[] = "url-prefix(";
     extern const char important_kwd[]    = "important";
-    extern const char pseudo_not_kwd[]   = ":not(";
+    extern const char pseudo_not_fn_kwd[] = ":not(";
     extern const char even_kwd[]         = "even";
     extern const char odd_kwd[]          = "odd";
     extern const char progid_kwd[]       = "progid";

src/constants.hpp

@@ -79,11 +79,11 @@ namespace Sass {
     extern const char supports_kwd[];
     extern const char keyframes_kwd[];
     extern const char only_kwd[];
-    extern const char rgb_kwd[];
+    extern const char rgb_fn_kwd[];
     extern const char url_kwd[];
-    // extern const char url_prefix_kwd[];
+    // extern const char url_prefix_fn_kwd[];
     extern const char important_kwd[];
-    extern const char pseudo_not_kwd[];
+    extern const char pseudo_not_fn_kwd[];
     extern const char even_kwd[];
     extern const char odd_kwd[];
     extern const char progid_kwd[];

src/prelexer.cpp

@@ -1050,7 +1050,7 @@ namespace Sass {
 
     /* no longer used - remove?
     const char* rgb_prefix(const char* src) {
-      return word<rgb_kwd>(src);
+      return word<rgb_fn_kwd>(src);
     }*/
     // Match CSS uri specifiers.
 
@@ -1164,7 +1164,7 @@ namespace Sass {
     }
     // Match the CSS negation pseudo-class.
     const char* pseudo_not(const char* src) {
-      return word< pseudo_not_kwd >(src);
+      return word< pseudo_not_fn_kwd >(src);
     }
     // Match CSS 'odd' and 'even' keywords for functional pseudo-classes.
     const char* even(const char* src) {