-.\" $Id: mandoc.3,v 1.2 2011/03/28 21:49:42 kristaps Exp $
+.\" $Id: mandoc.3,v 1.9 2011/05/24 21:31:23 kristaps Exp $
.\"
.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
.\" Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: March 28 2011 $
+.Dd $Mdocdate: May 24 2011 $
.Dt MANDOC 3
.Os
.Sh NAME
.Nm mandoc ,
+.Nm mandoc_escape ,
.Nm man_meta ,
.Nm man_node ,
+.Nm mchars_alloc ,
+.Nm mchars_free ,
+.Nm mchars_num2char ,
+.Nm mchars_num2uc ,
+.Nm mchars_spec2cp ,
+.Nm mchars_spec2str ,
.Nm mdoc_meta ,
.Nm mdoc_node ,
.Nm mparse_alloc ,
.Nm mparse_strerror ,
.Nm mparse_strlevel
.Nd mandoc macro compiler library
+.Sh LIBRARY
+.Lb mandoc
.Sh SYNOPSIS
.In man.h
.In mdoc.h
.In mandoc.h
+.Ft "enum mandoc_esc"
+.Fo mandoc_escape
+.Fa "const char **in"
+.Fa "const char **seq"
+.Fa "int *len"
+.Fc
.Ft "const struct man_meta *"
.Fo man_meta
.Fa "const struct man *man"
.Fo man_node
.Fa "const struct man *man"
.Fc
+.Ft "struct mchars *"
+.Fn mchars_alloc
+.Ft void
+.Fn mchars_free "struct mchars *p"
+.Ft char
+.Fn mchars_num2char "const char *cp" "size_t sz"
+.Ft int
+.Fn mchars_num2uc "const char *cp" "size_t sz"
+.Ft "const char *"
+.Fo mchars_spec2str
+.Fa "struct mchars *p"
+.Fa "const char *cp"
+.Fa "size_t sz"
+.Fa "size_t *rsz"
+.Fc
+.Ft int
+.Fo mchars_spec2cp
+.Fa "struct mchars *p"
+.Fa "const char *cp"
+.Fa "size_t sz"
+.Ft "const char *"
+.Fc
.Ft "const struct mdoc_meta *"
.Fo mdoc_meta
.Fa "const struct mdoc *mdoc"
.Vt extern const char * const * man_macronames;
.Vt extern const char * const * mdoc_argnames;
.Vt extern const char * const * mdoc_macronames;
+.Fd "#define ASCII_NBRSP"
+.Fd "#define ASCII_HYPH"
.Sh DESCRIPTION
The
.Nm mandoc
.Fn mparse_reset
and parse new files.
.El
+.Pp
+The
+.Nm
+library also contains routines for translating character strings into glyphs
+.Pq see Fn mchars_alloc
+and parsing escape sequences from strings
+.Pq see Fn mandoc_escape .
+.Pp
+This library is
+.Ud
+.Sh REFERENCE
+This section documents the functions, types, and variables available
+via
+.In mandoc.h .
+.Ss Types
+.Bl -ohang
+.It Vt "enum mandoc_esc"
+.It Vt "enum mandocerr"
+.It Vt "enum mandoclevel"
+.It Vt "struct mchars"
+An opaque pointer to an object allowing for translation between
+character strings and glyphs.
+See
+.Fn mchars_alloc .
+.It Vt "enum mparset"
+.It Vt "struct mparse"
+.It Vt "mandocmsg"
+.El
+.Ss Functions
+.Bl -ohang
+.It Fn mandoc_escape
+Scan an escape sequence, i.e., a character string beginning with
+.Sq \e .
+Pass a pointer to this string as
+.Va end ;
+it will be set to the supremum of the parsed escape sequence unless
+returning ESCAPE_ERROR, in which case the string is bogus and should be
+thrown away.
+If not ESCAPE_ERROR or ESCAPE_IGNORE,
+.Va start
+is set to the first relevant character of the substring (font, glyph,
+whatever) of length
+.Va sz .
+Both
+.Va start
+and
+.Va sz
+may be NULL.
+.It Fn man_meta
+Obtain the meta-data of a successful parse.
+This may only be used on a pointer returned by
+.Fn mparse_result .
+.It Fn man_node
+Obtain the root node of a successful parse.
+This may only be used on a pointer returned by
+.Fn mparse_result .
+.It Fn mchars_alloc
+Allocate an
+.Vt "struct mchars *"
+object for translating special characters into glyphs.
+See
+.Xr mandoc_char 7
+for an overview of special characters.
+The object must be freed with
+.Fn mchars_free .
+.It Fn mchars_free
+Free an object created with
+.Fn mchars_alloc .
+.It Fn mchars_num2char
+Convert a character index (e.g., the \eN\(aq\(aq escape) into a
+printable ASCII character.
+Returns \e0 (the nil character) if the input sequence is malformed.
+.It Fn mchars_num2uc
+Convert a hexadecimal character index (e.g., the \e[uNNNN] escape) into
+a Unicode codepoint.
+Returns \e0 (the nil character) if the input sequence is malformed.
+.It Fn mchars_spec2cp
+Convert a special character into a valid Unicode codepoint.
+Returns \-1 on failure and 0 if no code-point exists (if this occurs,
+the caller should fall back to
+.Fn mchars_spec2str ) .
+.It Fn mchars_spec2str
+Convert a special character into an ASCII string.
+Returns NULL on failure.
+.It Fn mdoc_meta
+Obtain the meta-data of a successful parse.
+This may only be used on a pointer returned by
+.Fn mparse_result .
+.It Fn mdoc_node
+Obtain the root node of a successful parse.
+This may only be used on a pointer returned by
+.Fn mparse_result .
+.It Fn mparse_alloc
+Allocate a parser.
+The same parser may be used for multiple files so long as
+.Fn mparse_reset
+is called between parses.
+.Fn mparse_free
+must be called to free the memory allocated by this function.
+.It Fn mparse_free
+Free all memory allocated by
+.Fn mparse_alloc .
+.It Fn mparse_readfd
+Parse a file or file descriptor.
+If
+.Va fd
+is -1,
+.Va fname
+is opened for reading.
+Otherwise,
+.Va fname
+is assumed to be the name associated with
+.Va fd .
+This may be called multiple times with different parameters; however,
+.Fn mparse_reset
+should be invoked between parses.
+.It Fn mparse_reset
+Reset a parser so that
+.Fn mparse_readfd
+may be used again.
+.It Fn mparse_result
+Obtain the result of a parse.
+Only successful parses
+.Po
+i.e., those where
+.Fn mparse_readfd
+returned less than MANDOCLEVEL_FATAL
+.Pc
+should invoke this function, in which case one of the two pointers will
+be filled in.
+.It Fn mparse_strerror
+Return a statically-allocated string representation of an error code.
+.It Fn mparse_strlevel
+Return a statically-allocated string representation of a level code.
+.El
+.Ss Variables
+.Bl -ohang
+.It Va man_macronames
+The string representation of a man macro as indexed by
+.Vt "enum mant" .
+.It Va mdoc_argnames
+The string representation of a mdoc macro argument as indexed by
+.Vt "enum mdocargt" .
+.It Va mdoc_macronames
+The string representation of a mdoc macro as indexed by
+.Vt "enum mdoct" .
+.El
.Sh IMPLEMENTATION NOTES
This section consists of structural documentation for
.Xr mdoc 7
.Pp
The
.Xr mdoc 7
-syntax tree accomodates for broken block structures as well.
+syntax tree accommodates for broken block structures as well.
The ENDBODY node is available to end the formatting associated
with a given block before the physical end of that block.
It has a non-null
.Xr mandoc 1 ,
.Xr eqn 7 ,
.Xr man 7 ,
+.Xr mandoc_char 7 ,
.Xr mdoc 7 ,
.Xr roff 7 ,
.Xr tbl 7
git.ckatri.com / mandoc.git / blobdiff