22af4063ff
- allow compile-time override for the OS name - added support for .PD and .%U - extend mdoc.7 - switch option select to -O, so that -o can be used for the output format - improve portability
1354 lines
30 KiB
C
1354 lines
30 KiB
C
/* $Vendor-Id: mdoc_macro.c,v 1.37 2009/10/24 05:52:13 kristaps Exp $ */
|
|
/*
|
|
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
|
|
*
|
|
* 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.
|
|
*/
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "libmdoc.h"
|
|
|
|
#define REWIND_REWIND (1 << 0)
|
|
#define REWIND_NOHALT (1 << 1)
|
|
#define REWIND_HALT (1 << 2)
|
|
|
|
static int obsolete(MACRO_PROT_ARGS);
|
|
static int blk_part_exp(MACRO_PROT_ARGS);
|
|
static int in_line_eoln(MACRO_PROT_ARGS);
|
|
static int in_line_argn(MACRO_PROT_ARGS);
|
|
static int in_line(MACRO_PROT_ARGS);
|
|
static int blk_full(MACRO_PROT_ARGS);
|
|
static int blk_exp_close(MACRO_PROT_ARGS);
|
|
static int blk_part_imp(MACRO_PROT_ARGS);
|
|
|
|
static int phrase(struct mdoc *, int, int, char *);
|
|
static int rew_dohalt(int, enum mdoc_type,
|
|
const struct mdoc_node *);
|
|
static int rew_alt(int);
|
|
static int rew_dobreak(int, const struct mdoc_node *);
|
|
static int rew_elem(struct mdoc *, int);
|
|
static int rew_sub(enum mdoc_type, struct mdoc *,
|
|
int, int, int);
|
|
static int rew_last(struct mdoc *,
|
|
const struct mdoc_node *);
|
|
static int append_delims(struct mdoc *, int, int *, char *);
|
|
static int lookup(int, const char *);
|
|
static int lookup_raw(const char *);
|
|
static int swarn(struct mdoc *, enum mdoc_type, int, int,
|
|
const struct mdoc_node *);
|
|
|
|
/* Central table of library: who gets parsed how. */
|
|
|
|
const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
|
|
{ in_line_eoln, MDOC_PROLOGUE }, /* Dd */
|
|
{ in_line_eoln, MDOC_PROLOGUE }, /* Dt */
|
|
{ in_line_eoln, MDOC_PROLOGUE }, /* Os */
|
|
{ blk_full, 0 }, /* Sh */
|
|
{ blk_full, 0 }, /* Ss */
|
|
{ in_line_eoln, 0 }, /* Pp */
|
|
{ blk_part_imp, MDOC_PARSED }, /* D1 */
|
|
{ blk_part_imp, MDOC_PARSED }, /* Dl */
|
|
{ blk_full, MDOC_EXPLICIT }, /* Bd */
|
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Ed */
|
|
{ blk_full, MDOC_EXPLICIT }, /* Bl */
|
|
{ blk_exp_close, MDOC_EXPLICIT }, /* El */
|
|
{ blk_full, MDOC_PARSED }, /* It */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
|
|
{ in_line_eoln, 0 }, /* Ex */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
|
|
{ in_line_eoln, 0 }, /* Fd */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
|
|
{ blk_full, 0 }, /* Nd */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
|
|
{ obsolete, 0 }, /* Ot */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
|
|
{ in_line_eoln, 0 }, /* Rv */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
|
|
{ in_line_eoln, 0 }, /* %A */
|
|
{ in_line_eoln, 0 }, /* %B */
|
|
{ in_line_eoln, 0 }, /* %D */
|
|
{ in_line_eoln, 0 }, /* %I */
|
|
{ in_line_eoln, 0 }, /* %J */
|
|
{ in_line_eoln, 0 }, /* %N */
|
|
{ in_line_eoln, 0 }, /* %O */
|
|
{ in_line_eoln, 0 }, /* %P */
|
|
{ in_line_eoln, 0 }, /* %R */
|
|
{ in_line_eoln, 0 }, /* %T */
|
|
{ in_line_eoln, 0 }, /* %V */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
|
|
{ blk_full, MDOC_EXPLICIT }, /* Bf */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
|
|
{ in_line_eoln, 0 }, /* Db */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
|
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Ef */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
|
|
{ in_line_argn, MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
|
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Re */
|
|
{ blk_full, MDOC_EXPLICIT }, /* Rs */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
|
|
{ in_line_eoln, 0 }, /* Sm */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
|
|
{ blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
|
|
{ blk_full, MDOC_EXPLICIT }, /* Bk */
|
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Ek */
|
|
{ in_line_eoln, 0 }, /* Bt */
|
|
{ in_line_eoln, 0 }, /* Hf */
|
|
{ obsolete, 0 }, /* Fr */
|
|
{ in_line_eoln, 0 }, /* Ud */
|
|
{ in_line_eoln, 0 }, /* Lb */
|
|
{ in_line_eoln, 0 }, /* Lp */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
|
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
|
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
|
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
|
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
|
|
{ in_line_eoln, 0 }, /* %C */
|
|
{ obsolete, 0 }, /* Es */
|
|
{ obsolete, 0 }, /* En */
|
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
|
|
{ in_line_eoln, 0 }, /* %Q */
|
|
{ in_line_eoln, 0 }, /* br */
|
|
{ in_line_eoln, 0 }, /* sp */
|
|
{ in_line_eoln, 0 }, /* %U */
|
|
};
|
|
|
|
const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
|
|
|
|
|
|
static int
|
|
swarn(struct mdoc *mdoc, enum mdoc_type type,
|
|
int line, int pos, const struct mdoc_node *p)
|
|
{
|
|
const char *n, *t, *tt;
|
|
|
|
n = t = "<root>";
|
|
tt = "block";
|
|
|
|
switch (type) {
|
|
case (MDOC_BODY):
|
|
tt = "multi-line";
|
|
break;
|
|
case (MDOC_HEAD):
|
|
tt = "line";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (p->type) {
|
|
case (MDOC_BLOCK):
|
|
n = mdoc_macronames[p->tok];
|
|
t = "block";
|
|
break;
|
|
case (MDOC_BODY):
|
|
n = mdoc_macronames[p->tok];
|
|
t = "multi-line";
|
|
break;
|
|
case (MDOC_HEAD):
|
|
n = mdoc_macronames[p->tok];
|
|
t = "line";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if ( ! (MDOC_IGN_SCOPE & mdoc->pflags))
|
|
return(mdoc_verr(mdoc, line, pos,
|
|
"%s scope breaks %s scope of %s",
|
|
tt, t, n));
|
|
return(mdoc_vwarn(mdoc, line, pos,
|
|
"%s scope breaks %s scope of %s",
|
|
tt, t, n));
|
|
}
|
|
|
|
|
|
/*
|
|
* This is called at the end of parsing. It must traverse up the tree,
|
|
* closing out open [implicit] scopes. Obviously, open explicit scopes
|
|
* are errors.
|
|
*/
|
|
int
|
|
mdoc_macroend(struct mdoc *m)
|
|
{
|
|
struct mdoc_node *n;
|
|
|
|
/* Scan for open explicit scopes. */
|
|
|
|
n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
|
|
|
|
for ( ; n; n = n->parent) {
|
|
if (MDOC_BLOCK != n->type)
|
|
continue;
|
|
if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
|
|
continue;
|
|
return(mdoc_nerr(m, n, EOPEN));
|
|
}
|
|
|
|
/* Rewind to the first. */
|
|
|
|
return(rew_last(m, m->first));
|
|
}
|
|
|
|
|
|
/*
|
|
* Look up a macro from within a subsequent context.
|
|
*/
|
|
static int
|
|
lookup(int from, const char *p)
|
|
{
|
|
/* FIXME: make -diag lists be un-PARSED. */
|
|
|
|
if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
|
|
return(MDOC_MAX);
|
|
return(lookup_raw(p));
|
|
}
|
|
|
|
|
|
/*
|
|
* Lookup a macro following the initial line macro.
|
|
*/
|
|
static int
|
|
lookup_raw(const char *p)
|
|
{
|
|
int res;
|
|
|
|
if (MDOC_MAX == (res = mdoc_hash_find(p)))
|
|
return(MDOC_MAX);
|
|
if (MDOC_CALLABLE & mdoc_macros[res].flags)
|
|
return(res);
|
|
return(MDOC_MAX);
|
|
}
|
|
|
|
|
|
static int
|
|
rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
|
|
{
|
|
|
|
assert(to);
|
|
mdoc->next = MDOC_NEXT_SIBLING;
|
|
|
|
/* LINTED */
|
|
while (mdoc->last != to) {
|
|
if ( ! mdoc_valid_post(mdoc))
|
|
return(0);
|
|
if ( ! mdoc_action_post(mdoc))
|
|
return(0);
|
|
mdoc->last = mdoc->last->parent;
|
|
assert(mdoc->last);
|
|
}
|
|
|
|
if ( ! mdoc_valid_post(mdoc))
|
|
return(0);
|
|
return(mdoc_action_post(mdoc));
|
|
}
|
|
|
|
|
|
/*
|
|
* Return the opening macro of a closing one, e.g., `Ec' has `Eo' as its
|
|
* matching pair.
|
|
*/
|
|
static int
|
|
rew_alt(int tok)
|
|
{
|
|
switch (tok) {
|
|
case (MDOC_Ac):
|
|
return(MDOC_Ao);
|
|
case (MDOC_Bc):
|
|
return(MDOC_Bo);
|
|
case (MDOC_Brc):
|
|
return(MDOC_Bro);
|
|
case (MDOC_Dc):
|
|
return(MDOC_Do);
|
|
case (MDOC_Ec):
|
|
return(MDOC_Eo);
|
|
case (MDOC_Ed):
|
|
return(MDOC_Bd);
|
|
case (MDOC_Ef):
|
|
return(MDOC_Bf);
|
|
case (MDOC_Ek):
|
|
return(MDOC_Bk);
|
|
case (MDOC_El):
|
|
return(MDOC_Bl);
|
|
case (MDOC_Fc):
|
|
return(MDOC_Fo);
|
|
case (MDOC_Oc):
|
|
return(MDOC_Oo);
|
|
case (MDOC_Pc):
|
|
return(MDOC_Po);
|
|
case (MDOC_Qc):
|
|
return(MDOC_Qo);
|
|
case (MDOC_Re):
|
|
return(MDOC_Rs);
|
|
case (MDOC_Sc):
|
|
return(MDOC_So);
|
|
case (MDOC_Xc):
|
|
return(MDOC_Xo);
|
|
default:
|
|
break;
|
|
}
|
|
abort();
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
|
|
/*
|
|
* Rewind rules. This indicates whether to stop rewinding
|
|
* (REWIND_HALT) without touching our current scope, stop rewinding and
|
|
* close our current scope (REWIND_REWIND), or continue (REWIND_NOHALT).
|
|
* The scope-closing and so on occurs in the various rew_* routines.
|
|
*/
|
|
static int
|
|
rew_dohalt(int tok, enum mdoc_type type, const struct mdoc_node *p)
|
|
{
|
|
|
|
if (MDOC_ROOT == p->type)
|
|
return(REWIND_HALT);
|
|
if (MDOC_VALID & p->flags)
|
|
return(REWIND_NOHALT);
|
|
|
|
switch (tok) {
|
|
case (MDOC_Aq):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bq):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Brq):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_D1):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Dl):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Dq):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Op):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Pq):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ql):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Qq):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Sq):
|
|
assert(MDOC_TAIL != type);
|
|
if (type == p->type && tok == p->tok)
|
|
return(REWIND_REWIND);
|
|
break;
|
|
case (MDOC_It):
|
|
assert(MDOC_TAIL != type);
|
|
if (type == p->type && tok == p->tok)
|
|
return(REWIND_REWIND);
|
|
if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
|
|
return(REWIND_HALT);
|
|
break;
|
|
case (MDOC_Sh):
|
|
if (type == p->type && tok == p->tok)
|
|
return(REWIND_REWIND);
|
|
break;
|
|
case (MDOC_Nd):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ss):
|
|
assert(MDOC_TAIL != type);
|
|
if (type == p->type && tok == p->tok)
|
|
return(REWIND_REWIND);
|
|
if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
|
|
return(REWIND_HALT);
|
|
break;
|
|
case (MDOC_Ao):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bd):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bf):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bk):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bl):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bo):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bro):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Do):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Eo):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Fo):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Oo):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Po):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Qo):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Rs):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_So):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Xo):
|
|
if (type == p->type && tok == p->tok)
|
|
return(REWIND_REWIND);
|
|
break;
|
|
/* Multi-line explicit scope close. */
|
|
case (MDOC_Ac):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Brc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Dc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ec):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ed):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ek):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_El):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Fc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ef):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Oc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Pc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Qc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Re):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Sc):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Xc):
|
|
if (type == p->type && rew_alt(tok) == p->tok)
|
|
return(REWIND_REWIND);
|
|
break;
|
|
default:
|
|
abort();
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
return(REWIND_NOHALT);
|
|
}
|
|
|
|
|
|
/*
|
|
* See if we can break an encountered scope (the rew_dohalt has returned
|
|
* REWIND_NOHALT).
|
|
*/
|
|
static int
|
|
rew_dobreak(int tok, const struct mdoc_node *p)
|
|
{
|
|
|
|
assert(MDOC_ROOT != p->type);
|
|
if (MDOC_ELEM == p->type)
|
|
return(1);
|
|
if (MDOC_TEXT == p->type)
|
|
return(1);
|
|
if (MDOC_VALID & p->flags)
|
|
return(1);
|
|
|
|
switch (tok) {
|
|
case (MDOC_It):
|
|
return(MDOC_It == p->tok);
|
|
case (MDOC_Nd):
|
|
return(MDOC_Nd == p->tok);
|
|
case (MDOC_Ss):
|
|
return(MDOC_Ss == p->tok);
|
|
case (MDOC_Sh):
|
|
if (MDOC_Nd == p->tok)
|
|
return(1);
|
|
if (MDOC_Ss == p->tok)
|
|
return(1);
|
|
return(MDOC_Sh == p->tok);
|
|
case (MDOC_El):
|
|
if (MDOC_It == p->tok)
|
|
return(1);
|
|
break;
|
|
case (MDOC_Oc):
|
|
/* XXX - experimental! */
|
|
if (MDOC_Op == p->tok)
|
|
return(1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (MDOC_EXPLICIT & mdoc_macros[tok].flags)
|
|
return(p->tok == rew_alt(tok));
|
|
else if (MDOC_BLOCK == p->type)
|
|
return(1);
|
|
|
|
return(tok == p->tok);
|
|
}
|
|
|
|
|
|
static int
|
|
rew_elem(struct mdoc *mdoc, int tok)
|
|
{
|
|
struct mdoc_node *n;
|
|
|
|
n = mdoc->last;
|
|
if (MDOC_ELEM != n->type)
|
|
n = n->parent;
|
|
assert(MDOC_ELEM == n->type);
|
|
assert(tok == n->tok);
|
|
|
|
return(rew_last(mdoc, n));
|
|
}
|
|
|
|
|
|
static int
|
|
rew_sub(enum mdoc_type t, struct mdoc *m,
|
|
int tok, int line, int ppos)
|
|
{
|
|
struct mdoc_node *n;
|
|
int c;
|
|
|
|
/* LINTED */
|
|
for (n = m->last; n; n = n->parent) {
|
|
c = rew_dohalt(tok, t, n);
|
|
if (REWIND_HALT == c) {
|
|
if (MDOC_BLOCK != t)
|
|
return(1);
|
|
if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags))
|
|
return(1);
|
|
return(mdoc_perr(m, line, ppos, ENOCTX));
|
|
}
|
|
if (REWIND_REWIND == c)
|
|
break;
|
|
else if (rew_dobreak(tok, n))
|
|
continue;
|
|
if ( ! swarn(m, t, line, ppos, n))
|
|
return(0);
|
|
}
|
|
|
|
assert(n);
|
|
return(rew_last(m, n));
|
|
}
|
|
|
|
|
|
static int
|
|
append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
|
|
{
|
|
int c, lastarg;
|
|
char *p;
|
|
|
|
if (0 == buf[*pos])
|
|
return(1);
|
|
|
|
for (;;) {
|
|
lastarg = *pos;
|
|
c = mdoc_zargs(mdoc, line, pos, buf, ARGS_NOWARN, &p);
|
|
assert(ARGS_PHRASE != c);
|
|
|
|
if (ARGS_ERROR == c)
|
|
return(0);
|
|
else if (ARGS_EOLN == c)
|
|
break;
|
|
assert(mdoc_isdelim(p));
|
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p))
|
|
return(0);
|
|
}
|
|
|
|
return(1);
|
|
}
|
|
|
|
|
|
/*
|
|
* Close out block partial/full explicit.
|
|
*/
|
|
static int
|
|
blk_exp_close(MACRO_PROT_ARGS)
|
|
{
|
|
int j, c, lastarg, maxargs, flushed;
|
|
char *p;
|
|
|
|
switch (tok) {
|
|
case (MDOC_Ec):
|
|
maxargs = 1;
|
|
break;
|
|
default:
|
|
maxargs = 0;
|
|
break;
|
|
}
|
|
|
|
if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
|
|
if (buf[*pos])
|
|
if ( ! mdoc_pwarn(m, line, ppos, ENOLINE))
|
|
return(0);
|
|
|
|
if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
|
|
return(0);
|
|
return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
|
|
}
|
|
|
|
if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
|
|
return(0);
|
|
|
|
if (maxargs > 0)
|
|
if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
|
|
return(0);
|
|
|
|
for (flushed = j = 0; ; j++) {
|
|
lastarg = *pos;
|
|
|
|
if (j == maxargs && ! flushed) {
|
|
if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
|
|
return(0);
|
|
flushed = 1;
|
|
}
|
|
|
|
c = mdoc_args(m, line, pos, buf, tok, &p);
|
|
|
|
if (ARGS_ERROR == c)
|
|
return(0);
|
|
if (ARGS_PUNCT == c)
|
|
break;
|
|
if (ARGS_EOLN == c)
|
|
break;
|
|
|
|
if (MDOC_MAX != (c = lookup(tok, p))) {
|
|
if ( ! flushed) {
|
|
if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
|
|
return(0);
|
|
flushed = 1;
|
|
}
|
|
if ( ! mdoc_macro(m, c, line, lastarg, pos, buf))
|
|
return(0);
|
|
break;
|
|
}
|
|
|
|
if ( ! mdoc_word_alloc(m, line, lastarg, p))
|
|
return(0);
|
|
}
|
|
|
|
if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
|
|
return(0);
|
|
|
|
if (ppos > 1)
|
|
return(1);
|
|
return(append_delims(m, line, pos, buf));
|
|
}
|
|
|
|
|
|
static int
|
|
in_line(MACRO_PROT_ARGS)
|
|
{
|
|
int la, lastpunct, c, w, cnt, d, nc;
|
|
struct mdoc_arg *arg;
|
|
char *p;
|
|
|
|
/*
|
|
* Whether we allow ignored elements (those without content,
|
|
* usually because of reserved words) to squeak by.
|
|
*/
|
|
switch (tok) {
|
|
case (MDOC_An):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ar):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Fl):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Lk):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Nm):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Pa):
|
|
nc = 1;
|
|
break;
|
|
default:
|
|
nc = 0;
|
|
break;
|
|
}
|
|
|
|
for (arg = NULL;; ) {
|
|
la = *pos;
|
|
c = mdoc_argv(m, line, tok, &arg, pos, buf);
|
|
|
|
if (ARGV_WORD == c) {
|
|
*pos = la;
|
|
break;
|
|
}
|
|
if (ARGV_EOLN == c)
|
|
break;
|
|
if (ARGV_ARG == c)
|
|
continue;
|
|
|
|
mdoc_argv_free(arg);
|
|
return(0);
|
|
}
|
|
|
|
for (cnt = 0, lastpunct = 1;; ) {
|
|
la = *pos;
|
|
w = mdoc_args(m, line, pos, buf, tok, &p);
|
|
|
|
if (ARGS_ERROR == w)
|
|
return(0);
|
|
if (ARGS_EOLN == w)
|
|
break;
|
|
if (ARGS_PUNCT == w)
|
|
break;
|
|
|
|
/* Quoted words shouldn't be looked-up. */
|
|
|
|
c = ARGS_QWORD == w ? MDOC_MAX : lookup(tok, p);
|
|
|
|
/*
|
|
* In this case, we've located a submacro and must
|
|
* execute it. Close out scope, if open. If no
|
|
* elements have been generated, either create one (nc)
|
|
* or raise a warning.
|
|
*/
|
|
|
|
if (MDOC_MAX != c) {
|
|
if (0 == lastpunct && ! rew_elem(m, tok))
|
|
return(0);
|
|
if (nc && 0 == cnt) {
|
|
if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
|
|
return(0);
|
|
if ( ! rew_last(m, m->last))
|
|
return(0);
|
|
} else if ( ! nc && 0 == cnt) {
|
|
mdoc_argv_free(arg);
|
|
if ( ! mdoc_pwarn(m, line, ppos, EIGNE))
|
|
return(0);
|
|
}
|
|
c = mdoc_macro(m, c, line, la, pos, buf);
|
|
if (0 == c)
|
|
return(0);
|
|
if (ppos > 1)
|
|
return(1);
|
|
return(append_delims(m, line, pos, buf));
|
|
}
|
|
|
|
/*
|
|
* Non-quote-enclosed punctuation. Set up our scope, if
|
|
* a word; rewind the scope, if a delimiter; then append
|
|
* the word.
|
|
*/
|
|
|
|
d = mdoc_isdelim(p);
|
|
|
|
if (ARGS_QWORD != w && d) {
|
|
if (0 == lastpunct && ! rew_elem(m, tok))
|
|
return(0);
|
|
lastpunct = 1;
|
|
} else if (lastpunct) {
|
|
if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
|
|
return(0);
|
|
lastpunct = 0;
|
|
}
|
|
|
|
if ( ! d)
|
|
cnt++;
|
|
if ( ! mdoc_word_alloc(m, line, la, p))
|
|
return(0);
|
|
}
|
|
|
|
if (0 == lastpunct && ! rew_elem(m, tok))
|
|
return(0);
|
|
|
|
/*
|
|
* If no elements have been collected and we're allowed to have
|
|
* empties (nc), open a scope and close it out. Otherwise,
|
|
* raise a warning.
|
|
*
|
|
*/
|
|
if (nc && 0 == cnt) {
|
|
if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
|
|
return(0);
|
|
if ( ! rew_last(m, m->last))
|
|
return(0);
|
|
} else if ( ! nc && 0 == cnt) {
|
|
mdoc_argv_free(arg);
|
|
if ( ! mdoc_pwarn(m, line, ppos, EIGNE))
|
|
return(0);
|
|
}
|
|
|
|
if (ppos > 1)
|
|
return(1);
|
|
return(append_delims(m, line, pos, buf));
|
|
}
|
|
|
|
|
|
static int
|
|
blk_full(MACRO_PROT_ARGS)
|
|
{
|
|
int c, lastarg, reopen, dohead;
|
|
struct mdoc_arg *arg;
|
|
char *p;
|
|
|
|
/*
|
|
* Whether to process a block-head section. If this is
|
|
* non-zero, then a head will be opened for all line arguments.
|
|
* If not, then the head will always be empty and only a body
|
|
* will be opened, which will stay open at the eoln.
|
|
*/
|
|
|
|
switch (tok) {
|
|
case (MDOC_Nd):
|
|
dohead = 0;
|
|
break;
|
|
default:
|
|
dohead = 1;
|
|
break;
|
|
}
|
|
|
|
if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
|
|
if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
|
|
return(0);
|
|
if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
|
|
return(0);
|
|
}
|
|
|
|
for (arg = NULL;; ) {
|
|
lastarg = *pos;
|
|
c = mdoc_argv(m, line, tok, &arg, pos, buf);
|
|
|
|
if (ARGV_WORD == c) {
|
|
*pos = lastarg;
|
|
break;
|
|
}
|
|
|
|
if (ARGV_EOLN == c)
|
|
break;
|
|
if (ARGV_ARG == c)
|
|
continue;
|
|
|
|
mdoc_argv_free(arg);
|
|
return(0);
|
|
}
|
|
|
|
if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
|
|
return(0);
|
|
|
|
if (0 == buf[*pos]) {
|
|
if ( ! mdoc_head_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
return(1);
|
|
}
|
|
|
|
if ( ! mdoc_head_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
|
|
/* Immediately close out head and enter body, if applicable. */
|
|
|
|
if (0 == dohead) {
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
}
|
|
|
|
for (reopen = 0;; ) {
|
|
lastarg = *pos;
|
|
c = mdoc_args(m, line, pos, buf, tok, &p);
|
|
|
|
if (ARGS_ERROR == c)
|
|
return(0);
|
|
if (ARGS_EOLN == c)
|
|
break;
|
|
if (ARGS_PHRASE == c) {
|
|
assert(dohead);
|
|
if (reopen && ! mdoc_head_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
/*
|
|
* Phrases are self-contained macro phrases used
|
|
* in the columnar output of a macro. They need
|
|
* special handling.
|
|
*/
|
|
if ( ! phrase(m, line, lastarg, buf))
|
|
return(0);
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
|
|
reopen = 1;
|
|
continue;
|
|
}
|
|
|
|
if (MDOC_MAX == (c = lookup(tok, p))) {
|
|
if ( ! mdoc_word_alloc(m, line, lastarg, p))
|
|
return(0);
|
|
continue;
|
|
}
|
|
|
|
if ( ! mdoc_macro(m, c, line, lastarg, pos, buf))
|
|
return(0);
|
|
break;
|
|
}
|
|
|
|
if (1 == ppos && ! append_delims(m, line, pos, buf))
|
|
return(0);
|
|
|
|
/* If the body's already open, then just return. */
|
|
if (0 == dohead)
|
|
return(1);
|
|
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
|
|
return(1);
|
|
}
|
|
|
|
|
|
static int
|
|
blk_part_imp(MACRO_PROT_ARGS)
|
|
{
|
|
int la, c;
|
|
char *p;
|
|
struct mdoc_node *blk, *body, *n;
|
|
|
|
/* If applicable, close out prior scopes. */
|
|
|
|
if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
|
|
return(0);
|
|
/* Saved for later close-out. */
|
|
blk = m->last;
|
|
if ( ! mdoc_head_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
/* Saved for later close-out. */
|
|
body = m->last;
|
|
|
|
/* Body argument processing. */
|
|
|
|
for (;;) {
|
|
la = *pos;
|
|
c = mdoc_args(m, line, pos, buf, tok, &p);
|
|
assert(ARGS_PHRASE != c);
|
|
|
|
if (ARGS_ERROR == c)
|
|
return(0);
|
|
if (ARGS_PUNCT == c)
|
|
break;
|
|
if (ARGS_EOLN == c)
|
|
break;
|
|
|
|
if (MDOC_MAX == (c = lookup(tok, p))) {
|
|
if ( ! mdoc_word_alloc(m, line, la, p))
|
|
return(0);
|
|
continue;
|
|
}
|
|
|
|
if ( ! mdoc_macro(m, c, line, la, pos, buf))
|
|
return(0);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* If we can't rewind to our body, then our scope has already
|
|
* been closed by another macro (like `Oc' closing `Op'). This
|
|
* is ugly behaviour nodding its head to OpenBSD's overwhelming
|
|
* crufty use of `Op' breakage--XXX, deprecate in time.
|
|
*/
|
|
for (n = m->last; n; n = n->parent)
|
|
if (body == n)
|
|
break;
|
|
if (NULL == n && ! mdoc_nwarn(m, body, EIMPBRK))
|
|
return(0);
|
|
if (n && ! rew_last(m, body))
|
|
return(0);
|
|
|
|
/* Standard appending of delimiters. */
|
|
|
|
if (1 == ppos && ! append_delims(m, line, pos, buf))
|
|
return(0);
|
|
|
|
/* Rewind scope, if applicable. */
|
|
|
|
if (n && ! rew_last(m, blk))
|
|
return(0);
|
|
|
|
return(1);
|
|
}
|
|
|
|
|
|
static int
|
|
blk_part_exp(MACRO_PROT_ARGS)
|
|
{
|
|
int la, flushed, j, c, maxargs;
|
|
char *p;
|
|
|
|
/* Number of head arguments. Only `Eo' has these, */
|
|
|
|
switch (tok) {
|
|
case (MDOC_Eo):
|
|
maxargs = 1;
|
|
break;
|
|
default:
|
|
maxargs = 0;
|
|
break;
|
|
}
|
|
|
|
/* Begin the block scope. */
|
|
|
|
if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
|
|
return(0);
|
|
|
|
/*
|
|
* If no head arguments, open and then close out a head, noting
|
|
* that we've flushed our terms. `flushed' means that we've
|
|
* flushed out the head and the body is open.
|
|
*/
|
|
|
|
if (0 == maxargs) {
|
|
if ( ! mdoc_head_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
flushed = 1;
|
|
} else {
|
|
if ( ! mdoc_head_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
flushed = 0;
|
|
}
|
|
|
|
/* Process the head/head+body line arguments. */
|
|
|
|
for (j = 0; ; j++) {
|
|
la = *pos;
|
|
if (j == maxargs && ! flushed) {
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
flushed = 1;
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
}
|
|
|
|
c = mdoc_args(m, line, pos, buf, tok, &p);
|
|
assert(ARGS_PHRASE != c);
|
|
|
|
if (ARGS_ERROR == c)
|
|
return(0);
|
|
if (ARGS_PUNCT == c)
|
|
break;
|
|
if (ARGS_EOLN == c)
|
|
break;
|
|
|
|
if (MDOC_MAX != (c = lookup(tok, p))) {
|
|
if ( ! flushed) {
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
flushed = 1;
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
}
|
|
if ( ! mdoc_macro(m, c, line, la, pos, buf))
|
|
return(0);
|
|
break;
|
|
}
|
|
|
|
if ( ! flushed && mdoc_isdelim(p)) {
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
flushed = 1;
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
}
|
|
|
|
if ( ! mdoc_word_alloc(m, line, la, p))
|
|
return(0);
|
|
}
|
|
|
|
/* Close the head and open the body, if applicable. */
|
|
|
|
if ( ! flushed) {
|
|
if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
|
|
return(0);
|
|
if ( ! mdoc_body_alloc(m, line, ppos, tok))
|
|
return(0);
|
|
}
|
|
|
|
/* Standard appending of delimiters. */
|
|
|
|
if (ppos > 1)
|
|
return(1);
|
|
return(append_delims(m, line, pos, buf));
|
|
}
|
|
|
|
|
|
static int
|
|
in_line_argn(MACRO_PROT_ARGS)
|
|
{
|
|
int la, flushed, j, c, maxargs;
|
|
struct mdoc_arg *arg;
|
|
char *p;
|
|
|
|
/* Fixed maximum arguments per macro, if applicable. */
|
|
|
|
switch (tok) {
|
|
case (MDOC_Ap):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_No):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ns):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Ux):
|
|
maxargs = 0;
|
|
break;
|
|
default:
|
|
maxargs = 1;
|
|
break;
|
|
}
|
|
|
|
/* Macro argument processing. */
|
|
|
|
for (arg = NULL;; ) {
|
|
la = *pos;
|
|
c = mdoc_argv(m, line, tok, &arg, pos, buf);
|
|
|
|
if (ARGV_WORD == c) {
|
|
*pos = la;
|
|
break;
|
|
}
|
|
|
|
if (ARGV_EOLN == c)
|
|
break;
|
|
if (ARGV_ARG == c)
|
|
continue;
|
|
|
|
mdoc_argv_free(arg);
|
|
return(0);
|
|
}
|
|
|
|
/* Open the element scope. */
|
|
|
|
if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
|
|
return(0);
|
|
|
|
/* Process element arguments. */
|
|
|
|
for (flushed = j = 0; ; j++) {
|
|
la = *pos;
|
|
|
|
if (j == maxargs && ! flushed) {
|
|
if ( ! rew_elem(m, tok))
|
|
return(0);
|
|
flushed = 1;
|
|
}
|
|
|
|
c = mdoc_args(m, line, pos, buf, tok, &p);
|
|
|
|
if (ARGS_ERROR == c)
|
|
return(0);
|
|
if (ARGS_PUNCT == c)
|
|
break;
|
|
if (ARGS_EOLN == c)
|
|
break;
|
|
|
|
if (MDOC_MAX != (c = lookup(tok, p))) {
|
|
if ( ! flushed && ! rew_elem(m, tok))
|
|
return(0);
|
|
flushed = 1;
|
|
if ( ! mdoc_macro(m, c, line, la, pos, buf))
|
|
return(0);
|
|
break;
|
|
}
|
|
|
|
if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
|
|
! flushed && mdoc_isdelim(p)) {
|
|
if ( ! rew_elem(m, tok))
|
|
return(0);
|
|
flushed = 1;
|
|
}
|
|
|
|
if ( ! mdoc_word_alloc(m, line, la, p))
|
|
return(0);
|
|
}
|
|
|
|
/* Close out and append delimiters. */
|
|
|
|
if ( ! flushed && ! rew_elem(m, tok))
|
|
return(0);
|
|
|
|
if (ppos > 1)
|
|
return(1);
|
|
return(append_delims(m, line, pos, buf));
|
|
}
|
|
|
|
|
|
static int
|
|
in_line_eoln(MACRO_PROT_ARGS)
|
|
{
|
|
int c, w, la;
|
|
struct mdoc_arg *arg;
|
|
char *p;
|
|
|
|
assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
|
|
|
|
/* Parse macro arguments. */
|
|
|
|
for (arg = NULL; ; ) {
|
|
la = *pos;
|
|
c = mdoc_argv(m, line, tok, &arg, pos, buf);
|
|
|
|
if (ARGV_WORD == c) {
|
|
*pos = la;
|
|
break;
|
|
}
|
|
if (ARGV_EOLN == c)
|
|
break;
|
|
if (ARGV_ARG == c)
|
|
continue;
|
|
|
|
mdoc_argv_free(arg);
|
|
return(0);
|
|
}
|
|
|
|
/* Open element scope. */
|
|
|
|
if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
|
|
return(0);
|
|
|
|
/* Parse argument terms. */
|
|
|
|
for (;;) {
|
|
la = *pos;
|
|
w = mdoc_args(m, line, pos, buf, tok, &p);
|
|
|
|
if (ARGS_ERROR == w)
|
|
return(0);
|
|
if (ARGS_EOLN == w)
|
|
break;
|
|
|
|
c = ARGS_QWORD == w ? MDOC_MAX : lookup(tok, p);
|
|
|
|
if (MDOC_MAX != c) {
|
|
if ( ! rew_elem(m, tok))
|
|
return(0);
|
|
return(mdoc_macro(m, c, line, la, pos, buf));
|
|
}
|
|
|
|
if ( ! mdoc_word_alloc(m, line, la, p))
|
|
return(0);
|
|
}
|
|
|
|
/* Close out (no delimiters). */
|
|
|
|
return(rew_elem(m, tok));
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
obsolete(MACRO_PROT_ARGS)
|
|
{
|
|
|
|
return(mdoc_pwarn(m, line, ppos, EOBS));
|
|
}
|
|
|
|
|
|
/*
|
|
* Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
|
|
* They're unusual because they're basically free-form text until a
|
|
* macro is encountered.
|
|
*/
|
|
static int
|
|
phrase(struct mdoc *m, int line, int ppos, char *buf)
|
|
{
|
|
int c, w, la, pos;
|
|
char *p;
|
|
|
|
for (pos = ppos; ; ) {
|
|
la = pos;
|
|
|
|
/* Note: no calling context! */
|
|
w = mdoc_zargs(m, line, &pos, buf, 0, &p);
|
|
|
|
if (ARGS_ERROR == w)
|
|
return(0);
|
|
if (ARGS_EOLN == w)
|
|
break;
|
|
|
|
c = ARGS_QWORD == w ? MDOC_MAX : lookup_raw(p);
|
|
|
|
if (MDOC_MAX != c) {
|
|
if ( ! mdoc_macro(m, c, line, la, &pos, buf))
|
|
return(0);
|
|
return(append_delims(m, line, &pos, buf));
|
|
}
|
|
|
|
if ( ! mdoc_word_alloc(m, line, la, p))
|
|
return(0);
|
|
}
|
|
|
|
return(1);
|
|
}
|
|
|
|
|