-.Dd December 1, 2014
+.\" $Id: mandoc_headers.3,v 1.34 2021/08/10 12:55:03 schwarze Exp $
+.\"
+.\" Copyright (c) 2014-2021 Ingo Schwarze <schwarze@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: August 10 2021 $
.Dt MANDOC_HEADERS 3
.Os
.Sh NAME
.Pp
.Bl -dash -offset indent -compact
.It
-.Xr mdoc 7
+.Xr roff 7
parser
.It
-.Xr man 7
+.Xr mdoc 7
parser
.It
-.Xr roff 7
+.Xr man 7
parser
.It
.Xr tbl 7
HTML formatters
.It
search tools
+.It
+main programs
.El
.Pp
Note that mere usage of an opaque struct type does
These headers should be included before any other mandoc headers.
.Bl -tag -width Ds
.It Qq Pa mandoc_aux.h
+Memory allocation utility functions; can be used everywhere.
+.Pp
Requires
.In sys/types.h
for
.Vt size_t .
.Pp
-Provides the utility functions documented in
+Provides the functions documented in
.Xr mandoc_malloc 3 .
.It Qq Pa mandoc_ohash.h
+Hashing utility functions; can be used everywhere.
+.Pp
Requires
.In stddef.h
for
and provides
.Fn mandoc_ohash_init .
.It Qq Pa mandoc.h
+Error handling, escape sequence, and character utilities;
+can be used everywhere.
+.Pp
Requires
.In sys/types.h
for
-.Vt size_t .
+.Vt size_t
+and
+.In stdio.h
+for
+.Vt FILE .
.Pp
Provides
.Vt enum mandoc_esc ,
.Vt enum mandocerr ,
.Vt enum mandoclevel ,
-.Vt enum tbl_cellt ,
-.Vt enum tbl_datt ,
-.Vt enum tbl_spant ,
-.Vt enum eqn_boxt ,
-.Vt enum eqn_fontt ,
-.Vt enum eqn_pilet ,
-.Vt enum eqn_post ,
-.Vt struct tbl_opts ,
-.Vt struct tbl_cell ,
-.Vt struct tbl_row ,
-.Vt struct tbl_dat ,
-.Vt struct tbl_span ,
-.Vt struct eqn_box ,
-.Vt struct eqn ,
-the function prototype typedef
-.Fn mandocmsg ,
the function
.Xr mandoc_escape 3 ,
the functions described in
.Xr mchars_alloc 3 ,
-and the functions
-.Fn mparse_*
-described in
-.Xr mandoc 3 .
-.Pp
-Uses the opaque type
-.Vt struct mparse
-from
-.Pa read.c
-for function prototypes.
-Uses the type
-.Vt struct roff_man
-from
-.Pa roff.h
-as an opaque type for function prototypes.
+and the
+.Fn mandoc_msg*
+functions.
.It Qq Pa roff.h
-Requires
-.Qq Pa mandoc_ohash.h
-for
-.Vt struct ohash .
+Common data types for all syntax trees and related functions;
+can be used everywhere.
.Pp
Provides
+.Vt enum mandoc_os ,
.Vt enum mdoc_endbody ,
.Vt enum roff_macroset ,
-.Vt enum roff_next ,
.Vt enum roff_sec ,
.Vt enum roff_tok ,
.Vt enum roff_type ,
.Vt struct roff_node ,
the constant array
.Va roff_name
-and the functions
-.Fn deroff ,
-.Fn roffhash_alloc ,
-.Fn roffhash_find ,
-and
-.Fn roffhash_free .
+and the function
+.Fn deroff .
.Pp
Uses pointers to the types
+.Vt struct ohash
+from
+.Qq Pa mandoc_ohash.h ,
.Vt struct mdoc_arg
and
.Vt union mdoc_data
from
-.Pa mdoc.h
+.Qq Pa mdoc.h ,
+.Vt struct tbl_span
+from
+.Qq Pa tbl.h ,
+and
+.Vt struct eqn_box
+from
+.Qq Pa eqn.h
as opaque struct members.
+.It Qq Pa tbl.h
+Data structures for the
+.Xr tbl 7
+parse tree; can be used everywhere.
+.Pp
+Requires
+.In sys/types.h
+for
+.Vt size_t
+and
+.Qq Pa mandoc.h
+for
+.Vt enum mandoc_esc .
+.Pp
+Provides
+.Vt enum tbl_cellt ,
+.Vt enum tbl_datt ,
+.Vt enum tbl_spant ,
+.Vt struct tbl_opts ,
+.Vt struct tbl_cell ,
+.Vt struct tbl_row ,
+.Vt struct tbl_dat ,
+and
+.Vt struct tbl_span .
+.It Qq Pa eqn.h
+Data structures for the
+.Xr eqn 7
+parse tree; can be used everywhere.
+.Pp
+Requires
+.In sys/types.h
+for
+.Vt size_t .
+.Pp
+Provides
+.Vt enum eqn_boxt ,
+.Vt enum eqn_fontt ,
+.Vt enum eqn_post ,
+and
+.Vt struct eqn_box .
+.It Qq Pa mandoc_parse.h
+Top level parser interface, for use in the main program
+and in the main parser, but not in formatters.
+.Pp
+Requires
+.Qq Pa mandoc.h
+for
+.Vt enum mandocerr
+and
+.Vt enum mandoclevel
+and
+.Qq Pa roff.h
+for
+.Vt enum mandoc_os .
+.Pp
+Uses the opaque type
+.Vt struct mparse
+from
+.Pa read.c
+for function prototypes.
+Uses
+.Vt struct roff_meta
+from
+.Qq Pa roff.h
+as an opaque type for function prototypes.
+.It Qq Pa mandoc_xr.h
+Cross reference validation; intended for use in the main program
+and in parsers, but not in formatters.
+.Pp
+Provides
+.Vt struct mandoc_xr
+and the functions
+.Fn mandoc_xr_reset ,
+.Fn mandoc_xr_add ,
+.Fn mandoc_xr_get ,
+and
+.Fn mandoc_xr_free .
+.It Qq Pa tag.h
+Internal interfaces to tag syntax tree nodes,
+for use by validation modules only.
+.Pp
+Requires
+.In limits.h
+for
+.Dv INT_MAX .
+.Pp
+Provides the functions
+.Fn tag_alloc ,
+.Fn tag_put ,
+.Fn tag_check ,
+and
+.Fn tag_free
+and some
+.Dv TAG_*
+constants.
+.Pp
+Uses the type
+.Vt struct roff_node
+from
+.Qq Pa roff.h
+as an opaque type for function prototypes.
.El
.Pp
The following two require
described in
.Xr mandoc 3 .
.Pp
-Uses the type
+Uses the types
+.Vt struct roff_node
+from
+.Qq Pa roff.h
+and
.Vt struct roff_man
from
-.Pa roff.h
-as an opaque type for function prototypes.
+.Qq Pa roff_int.h
+as opaque types for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa libman.h
-or
-.Pa libroff.h .
+internals of different parsers.
.It Qq Pa man.h
Provides the functions
.Fn man_*
described in
.Xr mandoc 3 .
.Pp
-Uses the opaque type
-.Vt struct mparse
-from
-.Pa read.c
-for function prototypes.
Uses the type
.Vt struct roff_man
from
-.Pa roff.h
+.Qq Pa roff.h
as an opaque type for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa libmdoc.h
-or
-.Pa libroff.h .
+internals of different parsers.
.El
.Ss Parser internals
-The following headers require inclusion of a parser interface header
+Most of the following headers require inclusion of a parser interface header
before they can be included.
All parser interface headers should precede all parser internal headers.
When any parser internal headers are included, the same file should
.Vt enum mandocerr .
.Pp
Provides
-.Vt enum rofferr ,
.Vt struct buf ,
utility functions needed by multiple parsers,
and the top-level functions to call the parsers.
.Pp
-Uses the opaque types
-.Vt struct mparse
-from
-.Pa read.c
-and
+Uses the opaque type
.Vt struct roff
from
.Pa roff.c
for function prototypes.
-Uses the types
-.Vt struct tbl_span
-and
-.Vt struct eqn
-from
-.Pa mandoc.h
-and
+Uses the type
.Vt struct roff_man
from
-.Pa roff.h
-as opaque types for function prototypes.
+.Qq Pa roff.h
+as an opaque type for function prototypes.
.It Qq Pa roff_int.h
+Parser internals shared by multiple parsers.
+Can be used in all parsers, but not in main programs or formatters.
+.Pp
Requires
.Qq Pa roff.h
for
-.Vt enum roff_type .
+.Vt enum roff_type
+and
+.Vt enum roff_tok .
.Pp
-Provides functions named
+Provides
+.Vt enum roff_next ,
+.Vt struct roff_man ,
+functions named
.Fn roff_*
-to handle roff nodes and the two special functions
+to handle roff nodes,
+.Fn roffhash_alloc ,
+.Fn roffhash_find ,
+.Fn roffhash_free ,
+and
+.Fn roff_validate ,
+and the two special functions
.Fn man_breakscope
and
.Fn mdoc_argv_free
because the latter two are needed by
-.Qq Pa roff.c .
+.Pa roff.c .
.Pp
Uses the types
-.Vt struct eqn
-and
-.Vt struct tbl_span
+.Vt struct ohash
from
-.Pa mandoc.h ,
-.Vt struct roff_man
-and
+.Qq Pa mandoc_ohash.h ,
.Vt struct roff_node
+and
+.Vt struct roff_meta
+from
+.Qq Pa roff.h ,
+.Vt struct roff
from
-.Pa roff.h ,
+.Pa roff.c ,
and
.Vt struct mdoc_arg
from
-.Pa mdoc.h
+.Qq Pa mdoc.h
as opaque types for function prototypes.
.It Qq Pa libmdoc.h
Requires
for
.Vt enum roff_tok
and
-.Qq Pa mdoc.h
-for
-.Vt enum mdoc_*
-and
-.Vt struct mdoc_* .
+.Vt enum roff_sec .
.Pp
Provides
.Vt enum margserr ,
.Xr mdoc 7
parser.
.Pp
-Uses the opaque type
-.Vt struct mparse
-from
-.Pa read.c .
Uses the types
+.Vt struct roff_node
+from
+.Qq Pa roff.h ,
.Vt struct roff_man
+from
+.Qq Pa roff_int.h ,
and
-.Vt struct roff_node
+.Vt struct mdoc_arg
from
-.Pa roff.h
+.Qq Pa mdoc.h
as opaque types for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa man.h ,
-.Pa libman.h ,
-or
-.Pa libroff.h .
+interfaces of different parsers.
.It Qq Pa libman.h
Requires
.Qq Pa roff.h
parser.
.Pp
Uses the types
-.Vt struct roff_man
-and
.Vt struct roff_node
from
-.Pa roff.h
+.Qq Pa roff.h
+and
+.Vt struct roff_man
+from
+.Qq Pa roff_int.h
as opaque types for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa mdoc.h ,
-.Pa libmdoc.h ,
-or
-.Pa libroff.h .
-.It Qq Pa libroff.h
+interfaces of different parsers.
+.It Qq Pa eqn_parse.h
+External interface of the
+.Xr eqn 7
+parser, for use in the
+.Xr roff 7
+and
+.Xr eqn 7
+parsers only.
+.Pp
Requires
.In sys/types.h
for
-.Vt size_t ,
+.Vt size_t .
+.Pp
+Provides
+.Vt struct eqn_node
+and the functions
+.Fn eqn_alloc ,
+.Fn eqn_box_new ,
+.Fn eqn_box_free ,
+.Fn eqn_free ,
+.Fn eqn_parse ,
+.Fn eqn_read ,
+and
+.Fn eqn_reset .
+.Pp
+Uses the type
+.Vt struct eqn_box
+from
.Qq Pa mandoc.h
-for
-.Vt struct tbl_*
+as an opaque type for function prototypes.
+Uses the types
+.Vt struct roff_node
+from
+.Qq Pa roff.h
and
-.Vt struct eqn ,
+.Vt struct eqn_def
+from
+.Pa eqn.c
+as opaque struct members.
+.Pp
+When this header is included, the same file should not include
+internals of different parsers.
+.It Qq Pa tbl_parse.h
+External interface of the
+.Xr tbl 7
+parser, for use in the
+.Xr roff 7
+and
+.Xr tbl 7
+parsers only.
+.Pp
+Provides the functions documented in
+.Xr tbl 3 .
+.Pp
+Uses the types
+.Vt struct tbl_span
+from
+.Qq Pa tbl.h
and
-.Qq Pa libmandoc.h
+.Vt struct tbl_node
+from
+.Qq Pa tbl_int.h
+as opaque types for function prototypes.
+.Pp
+When this header is included, the same file should not include
+internals of different parsers.
+.It Qq Pa tbl_int.h
+Internal interfaces of the
+.Xr tbl 7
+parser, for use inside the
+.Xr tbl 7
+parser only.
+.Pp
+Requires
+.Qq Pa tbl.h
for
-.Vt enum rofferr .
+.Vt struct tbl_opts .
.Pp
Provides
.Vt enum tbl_part ,
.Vt struct tbl_node ,
-.Vt struct eqn_def ,
-.Vt struct eqn_node ,
-and many functions internal to the
-.Xr tbl 7
+and the functions
+.Fn tbl_option ,
+.Fn tbl_layout ,
+.Fn tbl_data ,
+.Fn tbl_cdata ,
and
-.Xr eqn 7
-parsers.
-.Pp
-Uses the opaque type
-.Vt struct mparse
-from
-.Pa read.c .
+.Fn tbl_reset .
.Pp
When this header is included, the same file should not include
-.Pa man.h ,
-.Pa mdoc.h ,
-.Pa libman.h ,
-or
-.Pa libmdoc.h .
+interfaces of different parsers.
.El
.Ss Formatter interface
These headers should be included after any parser interface headers.
Uses
.Vt struct tbl_span
from
-.Pa mandoc.h
+.Qq Pa mandoc.h
as an opaque type for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa mansearch.h .
+.Qq Pa mansearch.h .
.It Qq Pa term.h
Requires
.In sys/types.h
Uses
.Vt struct tbl_span
and
-.Vt struct eqn
+.Vt struct eqn_box
from
-.Pa mandoc.h
+.Qq Pa mandoc.h
and
.Vt struct roff_meta
and
.Vt struct roff_node
from
-.Pa roff.h
+.Qq Pa roff.h
as opaque types for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa html.h
+.Qq Pa html.h
or
-.Pa mansearch.h .
-.It Qq Pa html.h
+.Qq Pa mansearch.h .
+.It Qq Pa tag_term.h
Requires
.In sys/types.h
for
.Vt size_t
and
+.In stdio.h
+for
+.Vt FILE .
+.Pp
+Provides an interface to generate
+.Xr ctags 1
+files for the
+.Ic :t
+functionality mentioned in
+.Xr man 1 .
+.Pp
+Uses the type
+.Vt struct roff_node
+from
+.Qq Pa roff.h
+as an opaque type for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Qq Pa html.h
+or
+.Qq Pa mansearch.h .
+.It Qq Pa html.h
+Requires
+.In sys/types.h
+for
+.Vt size_t ,
+.Qq Pa mandoc.h
+for
+.Vt enum mandoc_esc ,
+.Qq Pa roff.h
+for
+.Vt enum roff_tok ,
+and
.Qq Pa out.h
for
.Vt struct roffsu
Uses
.Vt struct tbl_span
and
-.Vt struct eqn
+.Vt struct eqn_box
from
-.Pa mandoc.h
+.Qq Pa mandoc.h
and
.Vt struct roff_node
from
-.Pa roff.h
+.Qq Pa roff.h
as opaque types for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa term.h
+.Qq Pa term.h ,
+.Qq Pa tab_term.h ,
or
-.Pa mansearch.h .
-.It Qq Pa tag.h
-Requires
-.In sys/types.h
-for
-.Vt size_t .
-.Pp
-Provides an interface to generate
-.Xr ctags 1
-files for the
-.Ic :t
-functionality mentioned in
-.Xr man 1 .
+.Qq Pa mansearch.h .
.It Qq Pa main.h
Provides the top level steering functions for all formatters.
.Pp
Uses the type
-.Vt struct roff_man
+.Vt struct roff_meta
from
-.Pa roff.h
+.Qq Pa roff.h
as an opaque type for function prototypes.
.It Qq Pa manconf.h
Requires
and the functions
.Fn manconf_parse ,
.Fn manconf_output ,
+.Fn manconf_free ,
and
-.Fn manconf_free .
+.Fn manpath_base .
.It Qq Pa mansearch.h
Requires
.In sys/types.h
Uses
.Vt struct manpaths
from
-.Pa manconf.h
+.Qq Pa manconf.h
as an opaque type for function prototypes.
.Pp
When this header is included, the same file should not include
-.Pa out.h ,
-.Pa term.h ,
+.Qq Pa out.h ,
+.Qq Pa term.h ,
+.Qq Pa tab_term.h ,
or
-.Pa html.h .
+.Qq Pa html.h .
.El
git.ckatri.com / mandoc.git / blobdiff