MFC: Merge in the changes in -current:

Support ! operator in "files" files.
Improve error detection and reporting
Cleanup code to make it easier to maintain.
Remove mandatory keyword: it has been used for 17 years.
Bump version number (we should have bumped for -I too, but didn't)

r261501 | imp | 2014-02-04 17:26:11 -0700 (Tue, 04 Feb 2014) | 5 lines
Fix ! by not clearing not at the bottom of the loop.
Add a blank line
Submitted by: bde (blank line)

r261493 | imp | 2014-02-04 11:28:58 -0700 (Tue, 04 Feb 2014) | 5 lines
Implement the '!' operator for files* files. It means 'include this
only if the specified option is NOT specified.' Bump version because
old config won't be able to cope with files* files that have this
construct in them.

r261446 | imp | 2014-02-03 12:14:36 -0700 (Mon, 03 Feb 2014) | 5 lines
Convert the loop by gotos into a for loop to improve readability. I
did this only with the inner loop for the token parsing, and not the
outer loop which was understandable enough when the extra layers of
looping went away...

r261445 | imp | 2014-02-03 12:10:33 -0700 (Mon, 03 Feb 2014) | 4 lines
Fix a bug introduced in r261437 that failed to honor "optional
profiling-routine" to work, since profiling-routine is not really an
option or a device, but a special case elsewhere in the code.

r261444 | imp | 2014-02-03 11:56:41 -0700 (Mon, 03 Feb 2014) | 2 lines
Slight cleanup to the error messaging to compress code vertically...

r261442 | imp | 2014-02-03 11:31:51 -0700 (Mon, 03 Feb 2014) | 2 lines
Better error messages when EOF is hit in the middle of a phrase.

r261438 | imp | 2014-02-03 09:54:53 -0700 (Mon, 03 Feb 2014) | 5 lines
Move the check for standard keyword + optional inclusion specifier to
its proper location. Otherwise you could have 'file.c standard pci'
without an error. This construct isn't in our tree, and has no well
defined meaning.

r261437 | imp | 2014-02-03 09:47:10 -0700 (Mon, 03 Feb 2014) | 4 lines
Don't believe we have a requirement until after we've checked all the
known key words. This will make error messages slightly better in
weird corner cases, but should otherwise be a nop.

r261436 | imp | 2014-02-03 09:46:01 -0700 (Mon, 03 Feb 2014) | 3 lines
In the 17 years since r30796, the mandatory keyword has never been used
in any files as far as I can tell, and is currently unused. Retire it.

r261435 | imp | 2014-02-03 08:10:44 -0700 (Mon, 03 Feb 2014) | 6 lines
Slightly deobfuscate read_file() and likely pessimize the runtime
performance by epsilon.
(Translation: elminate bogus macros that hid 'returns' making it hard
to read and moved a block of code inline rather than at the end of the
fuction where it was effectively a 'gosub' kind of goto).

MFC: Merge in the changes in -current:

Support ! operator in "files" files.
Improve error detection and reporting
Cleanup code to make it easier to maintain.
Remove mandatory keyword: it has been used for 17 years.
Bump version number (we should have bumped for -I too, but didn't)

r261501 | imp | 2014-02-04 17:26:11 -0700 (Tue, 04 Feb 2014) | 5 lines
Fix ! by not clearing not at the bottom of the loop.
Add a blank line
Submitted by: bde (blank line)

r261493 | imp | 2014-02-04 11:28:58 -0700 (Tue, 04 Feb 2014) | 5 lines
Implement the '!' operator for files* files. It means 'include this
only if the specified option is NOT specified.' Bump version because
old config won't be able to cope with files* files that have this
construct in them.

r261446 | imp | 2014-02-03 12:14:36 -0700 (Mon, 03 Feb 2014) | 5 lines
Convert the loop by gotos into a for loop to improve readability. I
did this only with the inner loop for the token parsing, and not the
outer loop which was understandable enough when the extra layers of
looping went away...

r261445 | imp | 2014-02-03 12:10:33 -0700 (Mon, 03 Feb 2014) | 4 lines
Fix a bug introduced in r261437 that failed to honor "optional
profiling-routine" to work, since profiling-routine is not really an
option or a device, but a special case elsewhere in the code.

r261444 | imp | 2014-02-03 11:56:41 -0700 (Mon, 03 Feb 2014) | 2 lines
Slight cleanup to the error messaging to compress code vertically...

r261442 | imp | 2014-02-03 11:31:51 -0700 (Mon, 03 Feb 2014) | 2 lines
Better error messages when EOF is hit in the middle of a phrase.

r261438 | imp | 2014-02-03 09:54:53 -0700 (Mon, 03 Feb 2014) | 5 lines
Move the check for standard keyword + optional inclusion specifier to
its proper location. Otherwise you could have 'file.c standard pci'
without an error. This construct isn't in our tree, and has no well
defined meaning.

r261437 | imp | 2014-02-03 09:47:10 -0700 (Mon, 03 Feb 2014) | 4 lines
Don't believe we have a requirement until after we've checked all the
known key words. This will make error messages slightly better in
weird corner cases, but should otherwise be a nop.

r261436 | imp | 2014-02-03 09:46:01 -0700 (Mon, 03 Feb 2014) | 3 lines
In the 17 years since r30796, the mandatory keyword has never been used
in any files as far as I can tell, and is currently unused. Retire it.

r261435 | imp | 2014-02-03 08:10:44 -0700 (Mon, 03 Feb 2014) | 6 lines
Slightly deobfuscate read_file() and likely pessimize the runtime
performance by epsilon.
(Translation: elminate bogus macros that hid 'returns' making it hard
to read and moved a block of code inline rather than at the end of the
fuction where it was effectively a 'gosub' kind of goto).