make pmatchregex regex_error_desc return type match cppregex.cpp and
posixregex.c
make the extern declaration for loadsyms[] in options.c match the
one in symbols.c.
Change the regex_error_desc() interface. Have the caller pass in
a pointer to a buffer of at least BUFSZ characters and have
regex_error_desc() populate that. No need for static buffers or
extra dynamic alloction.
Also, change it to never return Null. None of its callers were
checking for that and could have passed Null to config_error_add()
or raw_print(). printf("%s", NULL) produces "null" on OSX but other
systems would probably crash if a Null result ever actually occurred.
The error explanation returned by cppregex included a trailing period.
config_error_add() adds one, so the message ended up with two. Have
regex_error_desc() check for final period and strip it off if found.
(My test case used a menucolor pattern of "[" which triggers an error
about mismatched brackets.)
Reformat cppregex.cpp; treat 'extern "C" {' as if it isn't introducing
a nested block. Fix the '#include <hack.h>' that 'make depend' was
ignoring.
I started out cleaning up a bit of lint in the recent run-time options
handling and discovered that pmatchregex wasn't finished. Finish it and
also deal with the version lint. Argument declarations for function
definitions in pmatchregex.c have been switched to K&R style. (The ones
in posixregex.c have been left in ANSI style.)
There wasn't any build rule for pmatchregex.o; now there is (for Unix).
posixregex.o is still the default.
There isn't any build rule for cppregex.o (again, for Unix); the change
to cppregex.cpp is untested.
Changes to be committed:
modified: src/version.c
modified: sys/share/cppregex.cpp
modified: sys/share/pmatchregex.c
modified: sys/share/posixregex.c
modified: util/makedefs.c
Some options in 3.6.0 are determined by what you link with.
The choice of regex support is one.
Let #version show that linked option along with the compile-time options.
