Retire OpenBSD/sgi.

OK deraadt@

recognise riscv64 as a valid arch in mandoc

ok jmc@ deraadt@

Support the "powerpc64" architecture name.
The first file using it in .Dt was just committed by kettenis@.

socppc makes an extended visit to the bigbucket.
ok kettenis

When the -S option is given to man(1) and the requested manual page
name is not found and the requested architecture is unknown, complain
about the architecture rather than about the manual page name:

$ man -S vax cpu
man: Unknown architecture "vax".
$ man -S sparc64 foobar
man: No entry for foobar in the manual.

Friendlier error message suggested by jmc@, who also OK'ed the patch.

Drop useless architecture table. Validating architecture names
is a job for makewhatis(8)/mandoc.db(5), not for the parser.
Removes 150 lines from source files and 4k (1%) from the binary.
Bloat found by deraadt@.

KNF: case (FOO): -> case FOO, remove /* LINTED */ and /* ARGSUSED */,
remove trailing whitespace and blanks before tabs, improve some indenting;
no functional change

The files mandoc.c and mandoc.h contained both specialised low-level
functions used for multiple languages (mdoc, man, roff), for example
mandoc_escape(), mandoc_getarg(), mandoc_eos(), and generic auxiliary
functions. Split the auxiliaries out into their own file and header.
While here, do some #include cleanup.

Merge version 1.11.1:
Again lots of cleanup and maintenance work by kristaps@.
- simplify error reporting: less function pointers, more mandoc_[v]msg
- main: split document parsing out of main.c into read.c
- roff, mdoc, man: improved recognition of control characters
- roff: better handling of if/else stack overflows
- roff: add some predefined strings for backward compatibility
- mdoc, man: empty sections are not errors
- mdoc: move delimiter handling to libmdoc
- some header restructuring and some minor features and fixes
This merge causes two minor regressions
that i will fix in separate commits right afterwards.

Correct Copyright lines in the rarely touched files:
* add missing years (only where substantial changes were committed)
* update Kristaps' email address in the remaining places
No code changes.

Unified error and warning message system for all of mandoc,
featuring three message levels, as agreed during the mandoc hackathon:
* FATAL parser failure, cannot produce any output from this input file:
eventually, we hope to convert most of these to ERRORs.
* ERROR, meaning mandoc cannot cope fully with the input syntax and will
probably lose information or produce structurally garbled output;
it will try to produce output anyway but exit non-zero at the end,
which is eventually intended to make the ports infrastructure happy.
* WARNING, meaning you should clean up the input file, but output
is probably mostly OK, so this will not cause error-exit at the end.
This commit is mostly just converting the old system to the new one; before
the classification will become really reliable, we must check all messages.

In particular,
* set up a new central message string table in main.c
* drop the old message string tables from man.c and mdoc.c
* get rid of the piece-meal merr enums in libman and libmdoc
* reduce number of error/warning functions from 16 to 6 (still a lot...)

While here, handle a few problems more gracefully:
* allow .Rv and .Ex to work without a prior .Nm
* allow .An to ignore extra arguments
* allow undeclared columns in .Bl -column

Written by kristaps@.

sync to 1.9.12, mostly portability and refactoring:

correctness/functionality:
- bugfix: do not die when overstep hits the right margin
- new option: -fign-escape
- and various HTML features

portability:
- replace bzero(3) by memset(3), which is ANSI C
- replace err(3)/warn(3) by perror(3)/exit(3), which is ANSI C
- iuse argv[0] instead of __progname
- add time.h to various files for FreeBSD compilation

simplicity:
- do not allocate header/footer data dynamically in *_term.c
- provide and use malloc frontends that error out on failure

for full changelogs, see http://bsd.lv/cgi-bin/cvsweb.cgi/

sync to 1.7.16: comments, whitespace and spelling fixes; no functional change

Initial check-in of mandoc for formatting manuals. ok deraadt@

recognise riscv64 as a valid arch in mandoc

ok jmc@ deraadt@

Support the "powerpc64" architecture name.
The first file using it in .Dt was just committed by kettenis@.

socppc makes an extended visit to the bigbucket.
ok kettenis

When the -S option is given to man(1) and the requested manual page
name is not found and the requested architecture is unknown, complain
about the architecture rather than about the manual page name:

$ man -S vax cpu
man: Unknown architecture "vax".
$ man -S sparc64 foobar
man: No entry for foobar in the manual.

Friendlier error message suggested by jmc@, who also OK'ed the patch.

Drop useless architecture table. Validating architecture names
is a job for makewhatis(8)/mandoc.db(5), not for the parser.
Removes 150 lines from source files and 4k (1%) from the binary.
Bloat found by deraadt@.

KNF: case (FOO): -> case FOO, remove /* LINTED */ and /* ARGSUSED */,
remove trailing whitespace and blanks before tabs, improve some indenting;
no functional change

The files mandoc.c and mandoc.h contained both specialised low-level
functions used for multiple languages (mdoc, man, roff), for example
mandoc_escape(), mandoc_getarg(), mandoc_eos(), and generic auxiliary
functions. Split the auxiliaries out into their own file and header.
While here, do some #include cleanup.

Merge version 1.11.1:
Again lots of cleanup and maintenance work by kristaps@.
- simplify error reporting: less function pointers, more mandoc_[v]msg
- main: split document parsing out of main.c into read.c
- roff, mdoc, man: improved recognition of control characters
- roff: better handling of if/else stack overflows
- roff: add some predefined strings for backward compatibility
- mdoc, man: empty sections are not errors
- mdoc: move delimiter handling to libmdoc
- some header restructuring and some minor features and fixes
This merge causes two minor regressions
that i will fix in separate commits right afterwards.

Correct Copyright lines in the rarely touched files:
* add missing years (only where substantial changes were committed)
* update Kristaps' email address in the remaining places
No code changes.

Unified error and warning message system for all of mandoc,
featuring three message levels, as agreed during the mandoc hackathon:
* FATAL parser failure, cannot produce any output from this input file:
eventually, we hope to convert most of these to ERRORs.
* ERROR, meaning mandoc cannot cope fully with the input syntax and will
probably lose information or produce structurally garbled output;
it will try to produce output anyway but exit non-zero at the end,
which is eventually intended to make the ports infrastructure happy.
* WARNING, meaning you should clean up the input file, but output
is probably mostly OK, so this will not cause error-exit at the end.
This commit is mostly just converting the old system to the new one; before
the classification will become really reliable, we must check all messages.

In particular,
* set up a new central message string table in main.c
* drop the old message string tables from man.c and mdoc.c
* get rid of the piece-meal merr enums in libman and libmdoc
* reduce number of error/warning functions from 16 to 6 (still a lot...)

While here, handle a few problems more gracefully:
* allow .Rv and .Ex to work without a prior .Nm
* allow .An to ignore extra arguments
* allow undeclared columns in .Bl -column

Written by kristaps@.

sync to 1.9.12, mostly portability and refactoring:

correctness/functionality:
- bugfix: do not die when overstep hits the right margin
- new option: -fign-escape
- and various HTML features

portability:
- replace bzero(3) by memset(3), which is ANSI C
- replace err(3)/warn(3) by perror(3)/exit(3), which is ANSI C
- iuse argv[0] instead of __progname
- add time.h to various files for FreeBSD compilation

simplicity:
- do not allocate header/footer data dynamically in *_term.c
- provide and use malloc frontends that error out on failure

for full changelogs, see http://bsd.lv/cgi-bin/cvsweb.cgi/

sync to 1.7.16: comments, whitespace and spelling fixes; no functional change

Initial check-in of mandoc for formatting manuals. ok deraadt@

Support the "powerpc64" architecture name.
The first file using it in .Dt was just committed by kettenis@.

socppc makes an extended visit to the bigbucket.
ok kettenis

When the -S option is given to man(1) and the requested manual page
name is not found and the requested architecture is unknown, complain
about the architecture rather than about the manual page name:

$ man -S vax cpu
man: Unknown architecture "vax".
$ man -S sparc64 foobar
man: No entry for foobar in the manual.

Friendlier error message suggested by jmc@, who also OK'ed the patch.

Drop useless architecture table. Validating architecture names
is a job for makewhatis(8)/mandoc.db(5), not for the parser.
Removes 150 lines from source files and 4k (1%) from the binary.
Bloat found by deraadt@.

KNF: case (FOO): -> case FOO, remove /* LINTED */ and /* ARGSUSED */,
remove trailing whitespace and blanks before tabs, improve some indenting;
no functional change

The files mandoc.c and mandoc.h contained both specialised low-level
functions used for multiple languages (mdoc, man, roff), for example
mandoc_escape(), mandoc_getarg(), mandoc_eos(), and generic auxiliary
functions. Split the auxiliaries out into their own file and header.
While here, do some #include cleanup.

Merge version 1.11.1:
Again lots of cleanup and maintenance work by kristaps@.
- simplify error reporting: less function pointers, more mandoc_[v]msg
- main: split document parsing out of main.c into read.c
- roff, mdoc, man: improved recognition of control characters
- roff: better handling of if/else stack overflows
- roff: add some predefined strings for backward compatibility
- mdoc, man: empty sections are not errors
- mdoc: move delimiter handling to libmdoc
- some header restructuring and some minor features and fixes
This merge causes two minor regressions
that i will fix in separate commits right afterwards.

Correct Copyright lines in the rarely touched files:
* add missing years (only where substantial changes were committed)
* update Kristaps' email address in the remaining places
No code changes.

Unified error and warning message system for all of mandoc,
featuring three message levels, as agreed during the mandoc hackathon:
* FATAL parser failure, cannot produce any output from this input file:
eventually, we hope to convert most of these to ERRORs.
* ERROR, meaning mandoc cannot cope fully with the input syntax and will
probably lose information or produce structurally garbled output;
it will try to produce output anyway but exit non-zero at the end,
which is eventually intended to make the ports infrastructure happy.
* WARNING, meaning you should clean up the input file, but output
is probably mostly OK, so this will not cause error-exit at the end.
This commit is mostly just converting the old system to the new one; before
the classification will become really reliable, we must check all messages.

In particular,
* set up a new central message string table in main.c
* drop the old message string tables from man.c and mdoc.c
* get rid of the piece-meal merr enums in libman and libmdoc
* reduce number of error/warning functions from 16 to 6 (still a lot...)

While here, handle a few problems more gracefully:
* allow .Rv and .Ex to work without a prior .Nm
* allow .An to ignore extra arguments
* allow undeclared columns in .Bl -column

Written by kristaps@.

sync to 1.9.12, mostly portability and refactoring:

correctness/functionality:
- bugfix: do not die when overstep hits the right margin
- new option: -fign-escape
- and various HTML features

portability:
- replace bzero(3) by memset(3), which is ANSI C
- replace err(3)/warn(3) by perror(3)/exit(3), which is ANSI C
- iuse argv[0] instead of __progname
- add time.h to various files for FreeBSD compilation

simplicity:
- do not allocate header/footer data dynamically in *_term.c
- provide and use malloc frontends that error out on failure

for full changelogs, see http://bsd.lv/cgi-bin/cvsweb.cgi/

sync to 1.7.16: comments, whitespace and spelling fixes; no functional change

Initial check-in of mandoc for formatting manuals. ok deraadt@

socppc makes an extended visit to the bigbucket.
ok kettenis

When the -S option is given to man(1) and the requested manual page
name is not found and the requested architecture is unknown, complain
about the architecture rather than about the manual page name:

$ man -S vax cpu
man: Unknown architecture "vax".
$ man -S sparc64 foobar
man: No entry for foobar in the manual.

Friendlier error message suggested by jmc@, who also OK'ed the patch.

Drop useless architecture table. Validating architecture names
is a job for makewhatis(8)/mandoc.db(5), not for the parser.
Removes 150 lines from source files and 4k (1%) from the binary.
Bloat found by deraadt@.

KNF: case (FOO): -> case FOO, remove /* LINTED */ and /* ARGSUSED */,
remove trailing whitespace and blanks before tabs, improve some indenting;
no functional change

The files mandoc.c and mandoc.h contained both specialised low-level
functions used for multiple languages (mdoc, man, roff), for example
mandoc_escape(), mandoc_getarg(), mandoc_eos(), and generic auxiliary
functions. Split the auxiliaries out into their own file and header.
While here, do some #include cleanup.

Merge version 1.11.1:
Again lots of cleanup and maintenance work by kristaps@.
- simplify error reporting: less function pointers, more mandoc_[v]msg
- main: split document parsing out of main.c into read.c
- roff, mdoc, man: improved recognition of control characters
- roff: better handling of if/else stack overflows
- roff: add some predefined strings for backward compatibility
- mdoc, man: empty sections are not errors
- mdoc: move delimiter handling to libmdoc
- some header restructuring and some minor features and fixes
This merge causes two minor regressions
that i will fix in separate commits right afterwards.

Correct Copyright lines in the rarely touched files:
* add missing years (only where substantial changes were committed)
* update Kristaps' email address in the remaining places
No code changes.

Unified error and warning message system for all of mandoc,
featuring three message levels, as agreed during the mandoc hackathon:
* FATAL parser failure, cannot produce any output from this input file:
eventually, we hope to convert most of these to ERRORs.
* ERROR, meaning mandoc cannot cope fully with the input syntax and will
probably lose information or produce structurally garbled output;
it will try to produce output anyway but exit non-zero at the end,
which is eventually intended to make the ports infrastructure happy.
* WARNING, meaning you should clean up the input file, but output
is probably mostly OK, so this will not cause error-exit at the end.
This commit is mostly just converting the old system to the new one; before
the classification will become really reliable, we must check all messages.

In particular,
* set up a new central message string table in main.c
* drop the old message string tables from man.c and mdoc.c
* get rid of the piece-meal merr enums in libman and libmdoc
* reduce number of error/warning functions from 16 to 6 (still a lot...)

While here, handle a few problems more gracefully:
* allow .Rv and .Ex to work without a prior .Nm
* allow .An to ignore extra arguments
* allow undeclared columns in .Bl -column

Written by kristaps@.

sync to 1.9.12, mostly portability and refactoring:

correctness/functionality:
- bugfix: do not die when overstep hits the right margin
- new option: -fign-escape
- and various HTML features

portability:
- replace bzero(3) by memset(3), which is ANSI C
- replace err(3)/warn(3) by perror(3)/exit(3), which is ANSI C
- iuse argv[0] instead of __progname
- add time.h to various files for FreeBSD compilation

simplicity:
- do not allocate header/footer data dynamically in *_term.c
- provide and use malloc frontends that error out on failure

for full changelogs, see http://bsd.lv/cgi-bin/cvsweb.cgi/

sync to 1.7.16: comments, whitespace and spelling fixes; no functional change

Initial check-in of mandoc for formatting manuals. ok deraadt@