# HG changeset patch
# User Jim Meyering <meyering@redhat.com>
# Date 1302382686 -7200
# Node ID ff63cf60e142a662edfde72626ca73d2d041a316
# Parent  38c2156144b425afd831af6d12feedf84a393376
maint.mk: prohibit use of "can not"

* top/maint.mk (sc_prohibit_can_not): New rule.
Writing "can not" (rather than "cannot") is too common.  Prohibit it.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2011-04-09  Jim Meyering  <meyering@redhat.com>
+
+	maint.mk: prohibit use of "can not"
+	* top/maint.mk (sc_prohibit_can_not): New rule.
+	Writing "can not" (rather than "cannot") is too common.  Prohibit it.
+
 2011-04-09  Bruno Haible  <bruno@clisp.org>
 
 	careadlinkat: Guard against misuse of careadlinkatcwd.
diff --git a/top/maint.mk b/top/maint.mk
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -841,6 +841,11 @@
 	halt='do not define S_IS* macros; include <sys/stat.h>'		\
 	  $(_sc_search_regexp)
 
+sc_prohibit_can_not:
+	@prohibit='\<can[ ]not\>'					\
+	halt='use "cannot", not "can'' not"'				\
+	  $(_sc_search_regexp)
+
 _ptm1 = use "test C1 && test C2", not "test C1 -''a C2"
 _ptm2 = use "test C1 || test C2", not "test C1 -''o C2"
 # Using test's -a and -o operators is not portable.