Changed explicit 'A'-'Z' to isupper(), where correct to do so.

Documentation.

2 files changed, 8 insertions, 3 deletions

diff --git a/doc/flex.texi b/doc/flex.texi
index 3cc533b..97d2275 100644
--- a/doc/flex.texi
+++ b/doc/flex.texi
@@ -8405,6 +8405,11 @@ Technically, the above pattern does not encompass all possible C99 identifiers,
 "implementation-defined" characters. In practice, C compilers follow the above pattern, with the
 addition of the @samp{$} character.
 
+@item UTF-8 Encoded Unicode Code Point
+@verbatim
+[\x09\x0A\x0D\x20-\x7E]|[\xC2-\xDF][\x80-\xBF]|\xE0[\xA0-\xBF][\x80-\xBF]|[\xE1-\xEC\xEE\xEF]([\x80-\xBF]{2})|\xED[\x80-\x9F][\x80-\xBF]|\xF0[\x90-\xBF]([\x80-\xBF]{2})|[\xF1-\xF3]([\x80-\xBF]{3})|\xF4[\x80-\x8F]([\x80-\xBF]{2})
+@end verbatim
+
 @end table
 
 @node Quoted Constructs, Addresses, Identifiers, Common Patterns
diff --git a/parse.y b/parse.y
index 1a37341..2b80bb7 100644
--- a/parse.y
+++ b/parse.y
@@ -786,7 +786,7 @@ singleton	:  singleton '*'
 			{
 			++rulelen;
 
-			if ( caseins && $1 >= 'A' && $1 <= 'Z' )
+			if ( caseins && isupper($1))
 				$1 = clower( $1 );
 
 			if ($1 == nlch)
@@ -867,7 +867,7 @@ ccl		:  ccl CHAR '-' CHAR
 
 		|  ccl CHAR
 			{
-			if ( caseins && $2 >= 'A' && $2 <= 'Z' )
+			if ( caseins && isupper($2))
 				$2 = clower( $2 );
 
 			ccladd( $1, $2 );
@@ -936,7 +936,7 @@ ccl_expr:
 		
 string		:  string CHAR
 			{
-			if ( caseins && $2 >= 'A' && $2 <= 'Z' )
+			if ( caseins && isupper($2))
 				$2 = clower( $2 );
 
 			if ( $2 == nlch )