calendar: correct the search order for files

Include files that don't begin with a '/' are documented to search the
current directory, then /usr/share/calendar. This hasn't been accurate
for years,

calendar: correct the search order for files

Include files that don't begin with a '/' are documented to search the
current directory, then /usr/share/calendar. This hasn't been accurate
for years, since e061f95e7b9b ("Rework calendar(1) parser") rewrote a
lot of this.

Stash off the cwd before we do any chdir()ing around and use that to
honor the same order we'll follow for the -f flag. This may result in
an extra lookup that will fail for the initial calendar file, but I
don't think it's worth the complexity to avoid it.

While we're here, fix the documentation to just reference the order
described in FILES so that we only need to keep it up to date in one
place.

Reviewed by: bapt
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D42278

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usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a pe

usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

calendar: clarify comment syntax in man page

The single line comment indicator '//' is only detected at the
beginning of a line or when following white space to allow URLs
in calendar entries.

MFC

calendar: clarify comment syntax in man page

The single line comment indicator '//' is only detected at the
beginning of a line or when following white space to allow URLs
in calendar entries.

MFC after: 3 days

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Restrict locale settings to the file they occur in

This prevents LANG= in an included file from affecting the interpretation
of month and day names in the including file.

Make the internal pre-proc

Restrict locale settings to the file they occur in

This prevents LANG= in an included file from affecting the interpretation
of month and day names in the including file.

Make the internal pre-processor accept white space between the "#" at
the start of the line and the keyword for better compatibility with cpp.

Add support for the cpp keywords #warning and #error.

MFC after: 3 days

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Add regression tests for conditions and comments

Fix one case where #else was not corerctly processed and simplify the
conditions logic.

Fix parsing of day and month names in the locale specified i

Add regression tests for conditions and comments

Fix one case where #else was not corerctly processed and simplify the
conditions logic.

Fix parsing of day and month names in the locale specified in the calendar
file. The previous version would expect those names to match the locale of
the user.

Mention that comments are now correctly processed and that // is supported
in addition to /* ... */.

MFC after: 3 days

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Update man-page to document changes made to the calendar program.

MFC after: 3 days

Add support for nested conditionals

The previous behavior was to support nested #ifdef and #ifndef, but to
return to unconditional parsing after the next #endif, independently of
the number of previ

Add support for nested conditionals

The previous behavior was to support nested #ifdef and #ifndef, but to
return to unconditional parsing after the next #endif, independently of
the number of previously parsed conditions.

E.g. after "#ifdef A / #ifdef B / #endif" the following lines were
unconditially parsed again, independently of A and/or B being defined.

The new behavior is to count the level of false conditions and to only
restart parsing of calendar entries when the corresponding number of
#endif tokens have been seen.

In addition to the above, an #else directive has been added, to toggle
between parsing and ignoring of the following lines.

No validation of the correct use of the condition directives is made.
#endif without prior #define or #ifndef is ignored and #else toggles
between parsing and skipping of entries.

The MFC period has been set to 1 month to allow for a review of the
changes and for a discussion, whether these modifications should not
be merged at all.

No correct input file is parsed differently than before, but if calendar
data files are published that use these new features, those data files
will not parse correctly on prior versions of this program.

MFC after: 1 month

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Fix parsing of #ifdef in calendar files

There was code to process an #ifndef tokens, but none for #ifdef.
The #ifdef token was mentioned as unsupported in the BUGS section,
but no reason was given a

Fix parsing of #ifdef in calendar files

There was code to process an #ifndef tokens, but none for #ifdef.
The #ifdef token was mentioned as unsupported in the BUGS section,
but no reason was given and I do not see why it should stay omitted.

Misleading information in The BUGS section of the man-page regarding
the maximum number of #define and #include statements supported has
been removed. These limits might have applied to a prior version of
this program, but do not seem to apply to the current implementation.

I have not tried to test for the existence of the limits, but the
include file processing just recursively calls the parser (without
counting the recursion depth) and the stringlist functions do not
impose a limit on the number of entries.

Reported by: jhs@berklix.com
MFC after: 3 days

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calendar: remove all datafiles except freebsd one

Move all the data files for the calendar(1) program, except
calendar.freebsd to the calendar-data package. When a file
can't be found, and /usr/loca

calendar: remove all datafiles except freebsd one

Move all the data files for the calendar(1) program, except
calendar.freebsd to the calendar-data package. When a file
can't be found, and /usr/local/share/calendar doesn't exist
provide a helpful hint to install this package.

Reviewed by: se@
Differential Revision: https://reviews.freebsd.org/D26926

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calendar.1: Fix locale of the month in Dd ;)

Udpate calendar man-page to mention the search path added in r366962.

Calendar files in /usr/lcoal/share/calendar take precedence over files in
the base system. They can be provided by a port or pac

Udpate calendar man-page to mention the search path added in r366962.

Calendar files in /usr/lcoal/share/calendar take precedence over files in
the base system. They can be provided by a port or package, but since such
a port has not been committed, yet, no specific port name is suggested.

In fact, multiple ports could exist (e.g. per locale) without conflicting
with each other.

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Bump manual page date after 366243

While here, address mandoc warnings.

Document the fact (bug?) that the -a option will normally process
root's calendar files three times, once each for root, toor and
daemon.

This relates to bug 246943, but does not solve it. See disc

Document the fact (bug?) that the -a option will normally process
root's calendar files three times, once each for root, toor and
daemon.

This relates to bug 246943, but does not solve it. See discussion in
bug report for more details.

PR: 246943
Reported by: wcarson.bugzilla@disillusion.net

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Add extremely useful calendar(1) application to FreeBSD

It does extremely useful things like execute sendmail and spew dubiously
accurate factoids.

From the feedback, it seems like it is an essenti

Add extremely useful calendar(1) application to FreeBSD

It does extremely useful things like execute sendmail and spew dubiously
accurate factoids.

From the feedback, it seems like it is an essential utility in a modern unix
and not at all a useless bikeshed. How do those Linux people live without it?
Reverts r358561.

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Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Merge ^/head r303250 through r304235.

Remove reference cpp(1) which is not used anymore

MFC @ r256071

This is just prior to the bhyve_npt_pmap import so will allow
just the change to be merged for easier debug.

Merge head r233826 through r256722.

Merge head@256284

IFC @256277

Approved by: ken (mentor)

MFC- tracking commit.

mdoc: remove EOL whitespace.

Approved by: re (blanket)