. common/include/arch/i386 is not actually an imported sys/arch/i386/include but leftover Minix files; remove and move to include/ . move include/ufs to sys/ufs, where it came from, now that we have a sys/ hierarchy . move mdocml/ to external/bsd/, now we have that . single sys/arch/i386/stand/ import for boot stuff
177 lines
4.1 KiB
Groff
177 lines
4.1 KiB
Groff
.\" $Vendor-Id: roff.3,v 1.10 2011/01/01 16:18:39 kristaps Exp $
|
|
.\"
|
|
.\" Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
|
|
.\"
|
|
.\" 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 January 1, 2011
|
|
.Dt ROFF 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm roff ,
|
|
.Nm roff_alloc ,
|
|
.Nm roff_endparse ,
|
|
.Nm roff_free ,
|
|
.Nm roff_parseln ,
|
|
.Nm roff_reset ,
|
|
.Nm roff_span
|
|
.Nd roff macro compiler library
|
|
.Sh SYNOPSIS
|
|
.In mandoc.h
|
|
.In roff.h
|
|
.Ft "struct roff *"
|
|
.Fo roff_alloc
|
|
.Fa "struct regset *regs"
|
|
.Fa "void *data"
|
|
.Fa "mandocmsg msgs"
|
|
.Fc
|
|
.Ft void
|
|
.Fn roff_endparse "struct roff *roff"
|
|
.Ft void
|
|
.Fn roff_free "struct roff *roff"
|
|
.Ft "enum rofferr"
|
|
.Fo roff_parseln
|
|
.Fa "struct roff *roff"
|
|
.Fa "int line"
|
|
.Fa "char **bufp"
|
|
.Fa "size_t *bufsz"
|
|
.Fa "int pos"
|
|
.Fa "int *offs"
|
|
.Fc
|
|
.Ft void
|
|
.Fn roff_reset "struct roff *roff"
|
|
.Ft "const struct tbl_span *"
|
|
.Fn roff_span "const struct roff *roff"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
library processes lines of
|
|
.Xr roff 7
|
|
input.
|
|
.Pp
|
|
In general, applications initiate a parsing sequence with
|
|
.Fn roff_alloc ,
|
|
parse each line in a document with
|
|
.Fn roff_parseln ,
|
|
close the parsing session with
|
|
.Fn roff_endparse ,
|
|
and finally free all allocated memory with
|
|
.Fn roff_free .
|
|
The
|
|
.Fn roff_reset
|
|
function may be used in order to reset the parser for another input
|
|
sequence.
|
|
.Pp
|
|
The
|
|
.Fn roff_parseln
|
|
function should be invoked before passing a line into the
|
|
.Xr mdoc 3
|
|
or
|
|
.Xr man 3
|
|
libraries.
|
|
.Pp
|
|
See the
|
|
.Sx EXAMPLES
|
|
section for a full example.
|
|
.Sh REFERENCE
|
|
This section further defines the
|
|
.Sx Types
|
|
and
|
|
.Sx Functions
|
|
available to programmers.
|
|
.Ss Types
|
|
Functions (see
|
|
.Sx Functions )
|
|
may use the following types:
|
|
.Bl -ohang
|
|
.It Vt "enum rofferr"
|
|
Instructions for further processing to the caller of
|
|
.Fn roff_parseln .
|
|
.It Vt struct roff
|
|
An opaque type defined in
|
|
.Pa roff.c .
|
|
Its values are only used privately within the library.
|
|
.It Vt mandocmsg
|
|
A function callback type defined in
|
|
.Pa mandoc.h .
|
|
.El
|
|
.Ss Functions
|
|
Function descriptions follow:
|
|
.Bl -ohang
|
|
.It Fn roff_alloc
|
|
Allocates a parsing structure.
|
|
The
|
|
.Fa data
|
|
pointer is passed to
|
|
.Fa msgs .
|
|
Returns NULL on failure.
|
|
If non-NULL, the pointer must be freed with
|
|
.Fn roff_free .
|
|
.It Fn roff_reset
|
|
Reset the parser for another parse routine.
|
|
After its use,
|
|
.Fn roff_parseln
|
|
behaves as if invoked for the first time.
|
|
.It Fn roff_free
|
|
Free all resources of a parser.
|
|
The pointer is no longer valid after invocation.
|
|
.It Fn roff_parseln
|
|
Parse a nil-terminated line of input.
|
|
The character array
|
|
.Fa bufp
|
|
may be modified or reallocated within this function.
|
|
In the latter case,
|
|
.Fa bufsz
|
|
will be modified accordingly.
|
|
The
|
|
.Fa offs
|
|
pointer will be modified if the line start during subsequent processing
|
|
of the line is not at the zeroth index.
|
|
This line should not contain the trailing newline.
|
|
Returns 0 on failure, 1 on success.
|
|
.It Fn roff_endparse
|
|
Signals that the parse is complete.
|
|
.It Fn roff_span
|
|
If
|
|
.Fn roff_parseln
|
|
returned
|
|
.Va ROFF_TBL ,
|
|
return the last parsed table row.
|
|
Returns NULL otherwise.
|
|
.El
|
|
.Sh EXAMPLES
|
|
See
|
|
.Pa main.c
|
|
in the source distribution for an example of usage.
|
|
.Sh SEE ALSO
|
|
.Xr mandoc 1 ,
|
|
.Xr man 3 ,
|
|
.Xr mdoc 3 ,
|
|
.Xr roff 7
|
|
.Sh AUTHORS
|
|
The
|
|
.Nm
|
|
library was written by
|
|
.An Kristaps Dzonsons Aq kristaps@bsd.lv .
|
|
.Sh BUGS
|
|
The implementation of user-defined strings needs improvement:
|
|
.Bl -dash
|
|
.It
|
|
String values are taken literally and are not interpreted.
|
|
.It
|
|
Parsing of quoted strings is incomplete.
|
|
.It
|
|
The stings are stored internally using a singly linked list,
|
|
which is fine for small numbers of strings,
|
|
but ineffient when handling many strings.
|
|
.El
|