Make [:graph:] act like [:print:] sans space

In POSIX [[:print:]] is equivalent to [ [:graph:]], so change
[:graph:] so that it matches everything that [:print:] does,
except for space.
* doc/lispref/searching.texi (Char Classes):
* etc/NEWS:
* lisp/emacs-lisp/rx.el (rx):
Document [:graph:] to be [:print:] sans ' '.
* src/character.c, src/character.h (graphicp): New function.
* src/regex.c (ISGRAPH) [emacs]: Use it.
(BIT_GRAPH): New macro.
(BIT_PRINT): Increase to 0x200, to make room for BIT_GRAPH.
(re_wctype_to_bit) [! WIDE_CHAR_SUPPORT]:
Return BIT_GRAPH for RECC_GRAPH.
(re_match_2_internal) [emacs]: Use ISGRAPH if BIT_GRAPH,
and ISPRINT if BIT_PRINT.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/character.h b/src/character.h
index 1a5d2c8a670..859d717a0ba 100644
--- a/src/character.h
+++ b/src/character.h
@@ -662,6 +662,7 @@ extern Lisp_Object string_escape_byte8 (Lisp_Object);
 
 extern bool alphabeticp (int);
 extern bool decimalnump (int);
+extern bool graphicp (int);
 extern bool printablep (int);
 
 /* Return a translation table of id number ID.  */