Make the point a bit clearer after suggestion from Merijin

[p5sagit/p5-mst-13.2.git] / pod / perlunicode.pod

diff --git a/pod/perlunicode.pod b/pod/perlunicode.pod
index 033c9ac..d2c48e2 100644 (file)
--- a/pod/perlunicode.pod
+++ b/pod/perlunicode.pod
@@ -630,23 +630,29 @@ newline-separated lines.  Each line must be one of the following:
 
 =item *
 
-Two hexadecimal numbers separated by a tabulator denoting a range
-of Unicode codepoints.
+Two hexadecimal numbers separated by horizontal whitespace (space or
+tabulator characters) denoting a range of Unicode codepoints to include.
 
 =item *
 
-An existing character property prefixed by "+utf8::" to include
-all the characters in that property.
+Something to include, prefixed by "+": either an built-in character
+property (prefixed by "utf8::"), for all the characters in that
+property; or two hexadecimal codepoints for a range; or a single
+hexadecimal codepoint.
 
 =item *
 
-An existing character property prefixed by "-utf8::" to exclude
-all the characters in that property.
+Something to exclude, prefixed by "-": either an existing character
+property (prefixed by "utf8::"), for all the characters in that
+property; or two hexadecimal codepoints for a range; or a single
+hexadecimal codepoint.
 
 =item *
 
-An existing character property prefixed by "!utf8::" to include
-all except the characters in that property.
+Something to negate, prefixed "!": either an existing character
+property (prefixed by "utf8::") for all the characters except the
+characters in the property; or two hexadecimal codepoints for a range;
+or a single hexadecimal codepoint.
 
 =back
 
@@ -910,8 +916,9 @@ needed.  The BOM signatures will be 0x00 0x00 0xFE 0xFF for BE and
 UCS-2, UCS-4
 
 Encodings defined by the ISO 10646 standard.  UCS-2 is a 16-bit
-encoding, UCS-4 is a 32-bit encoding.  Unlike UTF-16, UCS-2
-is not extensible beyond 0xFFFF, because it does not use surrogates.
+encoding.  Unlike UTF-16, UCS-2 is not extensible beyond 0xFFFF,
+because it does not use surrogates.  UCS-4 is a 32-bit encoding,
+functionally identical to UTF-32.
 
 =item *