346 lines
6.4 KiB
C
346 lines
6.4 KiB
C
/* $Id: mdoc.h,v 1.90 2010/06/19 20:46:28 kristaps Exp $ */
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/*
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* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef MDOC_H
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#define MDOC_H
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/*
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* This library implements a validating scanner/parser for ``mdoc'' roff
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* macro documents, a.k.a. BSD manual page documents. The mdoc.c file
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* drives the parser, while macro.c describes the macro ontologies.
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* validate.c pre- and post-validates parsed macros, and action.c
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* performs actions on parsed and validated macros.
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*/
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/* What follows is a list of ALL possible macros. */
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enum mdoct {
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MDOC_Ap = 0,
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MDOC_Dd,
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MDOC_Dt,
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MDOC_Os,
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MDOC_Sh,
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MDOC_Ss,
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MDOC_Pp,
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MDOC_D1,
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MDOC_Dl,
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MDOC_Bd,
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MDOC_Ed,
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MDOC_Bl,
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MDOC_El,
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MDOC_It,
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MDOC_Ad,
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MDOC_An,
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MDOC_Ar,
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MDOC_Cd,
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MDOC_Cm,
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MDOC_Dv,
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MDOC_Er,
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MDOC_Ev,
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MDOC_Ex,
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MDOC_Fa,
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MDOC_Fd,
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MDOC_Fl,
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MDOC_Fn,
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MDOC_Ft,
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MDOC_Ic,
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MDOC_In,
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MDOC_Li,
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MDOC_Nd,
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MDOC_Nm,
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MDOC_Op,
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MDOC_Ot,
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MDOC_Pa,
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MDOC_Rv,
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MDOC_St,
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MDOC_Va,
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MDOC_Vt,
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MDOC_Xr,
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MDOC__A,
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MDOC__B,
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MDOC__D,
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MDOC__I,
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MDOC__J,
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MDOC__N,
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MDOC__O,
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MDOC__P,
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MDOC__R,
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MDOC__T,
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MDOC__V,
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MDOC_Ac,
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MDOC_Ao,
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MDOC_Aq,
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MDOC_At,
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MDOC_Bc,
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MDOC_Bf,
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MDOC_Bo,
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MDOC_Bq,
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MDOC_Bsx,
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MDOC_Bx,
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MDOC_Db,
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MDOC_Dc,
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MDOC_Do,
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MDOC_Dq,
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MDOC_Ec,
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MDOC_Ef,
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MDOC_Em,
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MDOC_Eo,
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MDOC_Fx,
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MDOC_Ms,
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MDOC_No,
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MDOC_Ns,
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MDOC_Nx,
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MDOC_Ox,
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MDOC_Pc,
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MDOC_Pf,
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MDOC_Po,
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MDOC_Pq,
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MDOC_Qc,
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MDOC_Ql,
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MDOC_Qo,
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MDOC_Qq,
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MDOC_Re,
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MDOC_Rs,
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MDOC_Sc,
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MDOC_So,
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MDOC_Sq,
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MDOC_Sm,
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MDOC_Sx,
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MDOC_Sy,
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MDOC_Tn,
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MDOC_Ux,
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MDOC_Xc,
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MDOC_Xo,
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MDOC_Fo,
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MDOC_Fc,
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MDOC_Oo,
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MDOC_Oc,
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MDOC_Bk,
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MDOC_Ek,
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MDOC_Bt,
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MDOC_Hf,
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MDOC_Fr,
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MDOC_Ud,
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MDOC_Lb,
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MDOC_Lp,
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MDOC_Lk,
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MDOC_Mt,
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MDOC_Brq,
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MDOC_Bro,
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MDOC_Brc,
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MDOC__C,
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MDOC_Es,
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MDOC_En,
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MDOC_Dx,
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MDOC__Q,
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MDOC_br,
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MDOC_sp,
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MDOC__U,
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MDOC_Ta,
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MDOC_MAX
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};
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/* What follows is a list of ALL possible macro arguments. */
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#define MDOC_Split 0
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#define MDOC_Nosplit 1
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#define MDOC_Ragged 2
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#define MDOC_Unfilled 3
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#define MDOC_Literal 4
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#define MDOC_File 5
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#define MDOC_Offset 6
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#define MDOC_Bullet 7
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#define MDOC_Dash 8
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#define MDOC_Hyphen 9
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#define MDOC_Item 10
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#define MDOC_Enum 11
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#define MDOC_Tag 12
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#define MDOC_Diag 13
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#define MDOC_Hang 14
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#define MDOC_Ohang 15
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#define MDOC_Inset 16
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#define MDOC_Column 17
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#define MDOC_Width 18
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#define MDOC_Compact 19
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#define MDOC_Std 20
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#define MDOC_Filled 21
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#define MDOC_Words 22
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#define MDOC_Emphasis 23
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#define MDOC_Symbolic 24
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#define MDOC_Nested 25
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#define MDOC_Centred 26
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#define MDOC_ARG_MAX 27
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/* Type of a syntax node. */
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enum mdoc_type {
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MDOC_TEXT,
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MDOC_ELEM,
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MDOC_HEAD,
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MDOC_TAIL,
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MDOC_BODY,
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MDOC_BLOCK,
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MDOC_ROOT
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};
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/* Section (named/unnamed) of `Sh'. */
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enum mdoc_sec {
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SEC_NONE, /* No section, yet. */
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SEC_NAME,
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SEC_LIBRARY,
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SEC_SYNOPSIS,
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SEC_DESCRIPTION,
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SEC_IMPLEMENTATION,
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SEC_RETURN_VALUES,
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SEC_ENVIRONMENT,
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SEC_FILES,
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SEC_EXIT_STATUS,
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SEC_EXAMPLES,
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SEC_DIAGNOSTICS,
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SEC_COMPATIBILITY,
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SEC_ERRORS,
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SEC_SEE_ALSO,
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SEC_STANDARDS,
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SEC_HISTORY,
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SEC_AUTHORS,
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SEC_CAVEATS,
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SEC_BUGS,
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SEC_SECURITY,
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SEC_CUSTOM, /* User-defined. */
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SEC__MAX
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};
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/* Information from prologue. */
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struct mdoc_meta {
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char *msec;
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char *vol;
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char *arch;
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time_t date;
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char *title;
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char *os;
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char *name;
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};
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/* An argument to a macro (multiple values = `It -column'). */
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struct mdoc_argv {
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int arg;
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int line;
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int pos;
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size_t sz;
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char **value;
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};
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struct mdoc_arg {
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size_t argc;
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struct mdoc_argv *argv;
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unsigned int refcnt;
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};
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enum mdoc_list {
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LIST__NONE = 0,
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LIST_bullet,
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LIST_column,
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LIST_dash,
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LIST_diag,
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LIST_enum,
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LIST_hang,
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LIST_hyphen,
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LIST_inset,
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LIST_item,
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LIST_ohang,
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LIST_tag
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};
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enum mdoc_disp {
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DISP__NONE = 0,
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DISP_centred,
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DISP_ragged,
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DISP_unfilled,
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DISP_filled,
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DISP_literal
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};
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struct mdoc_bd {
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const char *offs; /* -offset */
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enum mdoc_disp type; /* -ragged, etc. */
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int comp; /* -compact */
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};
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struct mdoc_bl {
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const char *width; /* -width */
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const char *offs; /* -offset */
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enum mdoc_list type; /* -tag, -enum, etc. */
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int comp; /* -compact */
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};
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/* Node in AST. */
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struct mdoc_node {
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struct mdoc_node *parent; /* parent AST node */
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struct mdoc_node *child; /* first child AST node */
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struct mdoc_node *next; /* sibling AST node */
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struct mdoc_node *prev; /* prior sibling AST node */
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int nchild; /* number children */
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int line; /* parse line */
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int pos; /* parse column */
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enum mdoct tok; /* tok or MDOC__MAX if none */
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int flags;
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#define MDOC_VALID (1 << 0) /* has been validated */
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#define MDOC_ACTED (1 << 1) /* has been acted upon */
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#define MDOC_EOS (1 << 2) /* at sentence boundary */
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#define MDOC_LINE (1 << 3) /* first macro/text on line */
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enum mdoc_type type; /* AST node type */
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enum mdoc_sec sec; /* current named section */
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struct mdoc_arg *args; /* BLOCK/ELEM */
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#ifdef UGLY
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struct mdoc_node *pending; /* BLOCK */
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#endif
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struct mdoc_node *head; /* BLOCK */
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struct mdoc_node *body; /* BLOCK */
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struct mdoc_node *tail; /* BLOCK */
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char *string; /* TEXT */
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union {
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struct mdoc_bl Bl;
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struct mdoc_bd Bd;
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} data;
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};
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#define MDOC_IGN_SCOPE (1 << 0) /* Ignore scope violations. */
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#define MDOC_IGN_ESCAPE (1 << 1) /* Ignore bad escape sequences. */
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#define MDOC_IGN_MACRO (1 << 2) /* Ignore unknown macros. */
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/* See mdoc.3 for documentation. */
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extern const char *const *mdoc_macronames;
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extern const char *const *mdoc_argnames;
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__BEGIN_DECLS
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struct mdoc;
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/* See mdoc.3 for documentation. */
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void mdoc_free(struct mdoc *);
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struct mdoc *mdoc_alloc(void *, int, mandocmsg);
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void mdoc_reset(struct mdoc *);
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int mdoc_parseln(struct mdoc *, int, char *, int);
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const struct mdoc_node *mdoc_node(const struct mdoc *);
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const struct mdoc_meta *mdoc_meta(const struct mdoc *);
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int mdoc_endparse(struct mdoc *);
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__END_DECLS
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#endif /*!MDOC_H*/
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