mandoc/mdoc_macro.c - diff

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Diff for /mandoc/mdoc_macro.c between version 1.3 and 1.51

version 1.3, 2009/03/27 13:44:24

version 1.51, 2010/04/05 08:45:29

Line 1

/* $Id$ */

* Permission to use, copy, modify, and distribute this software for any

* purpose with or without fee is hereby granted, provided that the

* purpose with or without fee is hereby granted, provided that the above

* above copyright notice and this permission notice appear in all

* copyright notice and this permission notice appear in all copies.

* copies.

* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL

* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED

* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE

* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL

* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR

* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

* PERFORMANCE OF THIS SOFTWARE.

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <assert.h>

#include <ctype.h>

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <time.h>

#include "libmdoc.h"

enum rew {

* This has scanning/parsing routines, each of which extract a macro and

REWIND_REWIND,

* its arguments and parameters, then know how to progress to the next

REWIND_NOHALT,

* macro.

REWIND_HALT

/* FIXME: .Fl, .Ar, .Cd handling of `|'. */

enum mwarn {

WIMPBRK,

WMACPARM,

WOBS

};

enum merr {

static int ctx_synopsis(MACRO_PROT_ARGS);

EOPEN,

EQUOT,

ENOCTX,

ENOPARMS

};

#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);

Line 59 static int blk_exp_close(MACRO_PROT_ARGS);

Line 44 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,

static enum rew rew_dohalt(enum mdoct, enum mdoc_type,

const struct mdoc_node *);

static int rew_alt(int);

static enum mdoct rew_alt(enum mdoct);

static int rew_dobreak(int, const struct mdoc_node *);

static int rew_dobreak(enum mdoct, const struct mdoc_node *);

static int rew_elem(struct mdoc *, int);

static int rew_elem(struct mdoc *, enum mdoct);

static int rew_impblock(struct mdoc *, int, int, int);

static int rew_sub(enum mdoc_type, struct mdoc *,

static int rew_expblock(struct mdoc *, int, int, int);

enum mdoct, int, int);

static int rew_subblock(enum mdoc_type,

static int rew_last(struct mdoc *,

struct mdoc *, int, int, int);

const struct mdoc_node *);

static int rew_last(struct mdoc *, struct mdoc_node *);

static int append_delims(struct mdoc *, int, int *, char *);

static int lookup(struct mdoc *, int, int, int, const char *);

static int lookup(int, const char *);

static int pwarn(struct mdoc *, int, int, enum mwarn);

static int lookup_raw(const char *);

static int perr(struct mdoc *, int, int, enum merr);

static int swarn(struct mdoc *, enum mdoc_type, int, int,

const struct mdoc_node *);

#define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t))

/* Central table of library: who gets parsed how. */

const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

{ NULL, 0 }, /* \" */

{ 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, 0 }, /* Pp */

{ in_line_eoln, 0 }, /* Pp */

{ blk_part_imp, MDOC_PARSED }, /* D1 */

{ blk_part_imp, MDOC_PARSED }, /* Dl */

{ blk_full, MDOC_EXPLICIT }, /* Bd */

Line 96 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

Line 77 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

{ blk_exp_close, MDOC_EXPLICIT }, /* El */

{ blk_full, MDOC_PARSED }, /* It */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */

{ in_line, MDOC_PARSED }, /* An */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */

{ in_line_eoln, MDOC_CALLABLE }, /* Cd */

{ 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 */

Line 108 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

Line 89 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

{ in_line_eoln, 0 }, /* Fd */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */

{ in_line, MDOC_PARSED }, /* Ft */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */

{ in_line_eoln, 0 }, /* In */

{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */

{ in_line_eoln, 0 }, /* Nd */

{ blk_full, 0 }, /* Nd */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */

{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */

{ obsolete, 0 }, /* Ot */

Line 120 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

Line 101 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

{ 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 */

{ ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */

{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */

{ in_line_eoln, 0 }, /* %A */

{ in_line_eoln, 0 }, /* %B */

{ in_line_eoln, 0 }, /* %D */

Line 152 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

Line 133 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

{ 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_PARSED }, /* Ms */

{ 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 */

Line 188 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

Line 169 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

{ obsolete, 0 }, /* Fr */

{ in_line_eoln, 0 }, /* Ud */

{ in_line_eoln, 0 }, /* Lb */

{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */

{ in_line_eoln, 0 }, /* Lp */

{ in_line, 0 }, /* Lp */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */

{ in_line, MDOC_PARSED }, /* Lk */

{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */

{ in_line, 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 */

Line 200 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

Line 180 const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {

{ 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

perr(struct mdoc *mdoc, int line, int pos, enum merr type)

{

char *p;

p = NULL;

switch (type) {

case (EOPEN):

p = "explicit scope still open on exit";

break;

case (EQUOT):

p = "unterminated quotation";

break;

case (ENOCTX):

p = "closure has no prior context";

break;

case (ENOPARMS):

p = "unexpect line arguments";

break;

}

assert(p);

return(mdoc_perr(mdoc, line, pos, p));

}

static int

pwarn(struct mdoc *mdoc, int line, int pos, enum mwarn type)

{

char *p;

p = NULL;

switch (type) {

case (WIMPBRK):

p = "crufty end-of-line scope violation";

break;

case (WMACPARM):

p = "macro-like parameter";

break;

case (WOBS):

p = "macro marked obsolete";

break;

}

assert(p);

return(mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, p));

}

static int

swarn(struct mdoc *mdoc, enum mdoc_type type,

int line, int pos, const struct mdoc_node *p)

{

Line 290 swarn(struct mdoc *mdoc, enum mdoc_type type,

Line 226 swarn(struct mdoc *mdoc, enum mdoc_type type,

}

if ( ! (MDOC_IGN_SCOPE & mdoc->pflags))

return(mdoc_perr(mdoc, line, pos,

return(mdoc_verr(mdoc, line, pos,

"%s scope breaks %s scope of %s",

tt, t, n));

return(mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX,

return(mdoc_vwarn(mdoc, line, pos,

"%s scope breaks %s scope of %s",

tt, t, n));

}

Line 305 swarn(struct mdoc *mdoc, enum mdoc_type type,

Line 241 swarn(struct mdoc *mdoc, enum mdoc_type type,

* are errors.

int

mdoc_macroend(struct mdoc *mdoc)

mdoc_macroend(struct mdoc *m)

{

struct mdoc_node *n;

/* Scan for open explicit scopes. */

n = MDOC_VALID & mdoc->last->flags ?

n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;

mdoc->last->parent : mdoc->last;

for ( ; n; n = n->parent) {

if (MDOC_BLOCK != n->type)

continue;

if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))

continue;

return(nerr(mdoc, n, EOPEN));

return(mdoc_nerr(m, n, EOPEN));

}

return(rew_last(mdoc, mdoc->first));

/* Rewind to the first. */

return(rew_last(m, m->first));

}

* Look up a macro from within a subsequent context.

static int

lookup(struct mdoc *mdoc, int line, int pos, int from, const char *p)

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;

res = mdoc_tokhash_find(mdoc->htab, p);

if (MDOC_MAX == (res = mdoc_hash_find(p)))

if (MDOC_PARSED & mdoc_macros[from].flags)

return(MDOC_MAX);

if (MDOC_CALLABLE & mdoc_macros[res].flags)

return(res);

if (MDOC_MAX == res)

return(res);

if ( ! pwarn(mdoc, line, pos, WMACPARM))

return(-1);

return(MDOC_MAX);

}

static int

rew_last(struct mdoc *mdoc, struct mdoc_node *to)

rew_last(struct mdoc *mdoc, const struct mdoc_node *to)

{

assert(to);

Line 364 rew_last(struct mdoc *mdoc, struct mdoc_node *to)

Line 316 rew_last(struct mdoc *mdoc, struct mdoc_node *to)

}

static int

rew_alt(int tok)

* Return the opening macro of a closing one, e.g., `Ec' has `Eo' as its

* matching pair.

static enum mdoct

rew_alt(enum mdoct tok)

{

switch (tok) {

case (MDOC_Ac):

Line 414 rew_alt(int tok)

Line 370 rew_alt(int tok)

* close our current scope (REWIND_REWIND), or continue (REWIND_NOHALT).

* The scope-closing and so on occurs in the various rew_* routines.

static int

static enum rew

rew_dohalt(int tok, enum mdoc_type type, const struct mdoc_node *p)

rew_dohalt(enum mdoct tok, enum mdoc_type type,

const struct mdoc_node *p)

{

if (MDOC_ROOT == p->type)

Line 445 rew_dohalt(int tok, enum mdoc_type type, const struct

Line 402 rew_dohalt(int tok, enum mdoc_type type, const struct

case (MDOC_Qq):

/* FALLTHROUGH */

case (MDOC_Sq):

assert(MDOC_HEAD != type);

/* FALLTHROUGH */

case (MDOC_Vt):

assert(MDOC_TAIL != type);

if (type == p->type && tok == p->tok)

return(REWIND_REWIND);

Line 461 rew_dohalt(int tok, enum mdoc_type type, const struct

Line 419 rew_dohalt(int tok, enum mdoc_type type, const struct

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)

Line 502 rew_dohalt(int tok, enum mdoc_type type, const struct

Line 462 rew_dohalt(int tok, enum mdoc_type type, const struct

if (type == p->type && tok == p->tok)

return(REWIND_REWIND);

break;

/* Multi-line explicit scope close. */

case (MDOC_Ac):

/* FALLTHROUGH */

Line 552 rew_dohalt(int tok, enum mdoc_type type, const struct

Line 511 rew_dohalt(int tok, enum mdoc_type type, const struct

* REWIND_NOHALT).

static int

rew_dobreak(int tok, const struct mdoc_node *p)

rew_dobreak(enum mdoct tok, const struct mdoc_node *p)

{

assert(MDOC_ROOT != p->type);

Line 566 rew_dobreak(int tok, const struct mdoc_node *p)

Line 525 rew_dobreak(int tok, const struct mdoc_node *p)

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);

Line 577 rew_dobreak(int tok, const struct mdoc_node *p)

Line 540 rew_dobreak(int tok, const struct mdoc_node *p)

return(1);

break;

case (MDOC_Oc):

/* XXX - experimental! */

if (MDOC_Op == p->tok)

return(1);

break;

Line 595 rew_dobreak(int tok, const struct mdoc_node *p)

Line 557 rew_dobreak(int tok, const struct mdoc_node *p)

static int

rew_elem(struct mdoc *mdoc, int tok)

rew_elem(struct mdoc *mdoc, enum mdoct tok)

{

struct mdoc_node *n;

Line 610 rew_elem(struct mdoc *mdoc, int tok)

Line 572 rew_elem(struct mdoc *mdoc, int tok)

static int

rew_subblock(enum mdoc_type type, struct mdoc *mdoc,

rew_sub(enum mdoc_type t, struct mdoc *m,

int tok, int line, int ppos)

enum mdoct tok, int line, int ppos)

{

struct mdoc_node *n;

int c;

enum rew c;

/* LINTED */

for (n = mdoc->last; n; n = n->parent) {

for (n = m->last; n; n = n->parent) {

c = rew_dohalt(tok, type, n);

c = rew_dohalt(tok, t, n);

if (REWIND_HALT == c)

if (REWIND_HALT == c) {

return(1);

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(mdoc, type, line, ppos, n))

if ( ! swarn(m, t, line, ppos, n))

return(0);

}

assert(n);

return(rew_last(mdoc, n));

if ( ! rew_last(m, n))

}

return(0);

#ifdef UGLY

static int

rew_expblock(struct mdoc *mdoc, int tok, int line, int ppos)

* The current block extends an enclosing block beyond a line

{

* break. Now that the current block ends, close the enclosing

struct mdoc_node *n;

* block, too.

int c;

if (NULL != (n = n->pending)) {

/* LINTED */

assert(MDOC_HEAD == n->type);

for (n = mdoc->last; n; n = n->parent) {

if ( ! rew_last(m, n))

c = rew_dohalt(tok, MDOC_BLOCK, n);

if (REWIND_HALT == c)

return(perr(mdoc, line, ppos, ENOCTX));

if (REWIND_REWIND == c)

break;

else if (rew_dobreak(tok, n))

continue;

if ( ! swarn(mdoc, MDOC_BLOCK, line, ppos, n))

return(0);

}

if ( ! mdoc_body_alloc(m, n->line, n->pos, n->tok))

assert(n);

return(rew_last(mdoc, n));

}

static int

rew_impblock(struct mdoc *mdoc, int tok, int line, int ppos)

{

struct mdoc_node *n;

int c;

/* LINTED */

for (n = mdoc->last; n; n = n->parent) {

c = rew_dohalt(tok, MDOC_BLOCK, n);

if (REWIND_HALT == c)

return(1);

else if (REWIND_REWIND == c)

break;

else if (rew_dobreak(tok, n))

continue;

if ( ! swarn(mdoc, MDOC_BLOCK, line, ppos, n))

return(0);

}

#endif

assert(n);

return(1);

return(rew_last(mdoc, n));

}

Line 693 append_delims(struct mdoc *mdoc, int line, int *pos, c

Line 630 append_delims(struct mdoc *mdoc, int line, int *pos, c

for (;;) {

lastarg = *pos;

c = mdoc_args(mdoc, line, pos, buf, 0, &p);

c = mdoc_zargs(mdoc, line, pos, buf, ARGS_NOWARN, &p);

assert(ARGS_PHRASE != c);

if (ARGS_ERROR == c)

Line 703 append_delims(struct mdoc *mdoc, int line, int *pos, c

Line 640 append_delims(struct mdoc *mdoc, int line, int *pos, c

assert(mdoc_isdelim(p));

if ( ! mdoc_word_alloc(mdoc, line, lastarg, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

}

return(1);

Line 729 blk_exp_close(MACRO_PROT_ARGS)

Line 665 blk_exp_close(MACRO_PROT_ARGS)

}

if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {

if (0 == buf[*pos]) {

if (buf[*pos])

if ( ! rew_subblock(MDOC_BODY, mdoc,

if ( ! mdoc_pwarn(m, line, ppos, ENOLINE))

tok, line, ppos))

return(0);

return(rew_expblock(mdoc, tok, line, ppos));

}

if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))

return(perr(mdoc, line, ppos, ENOPARMS));

return(0);

return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));

}

if ( ! rew_subblock(MDOC_BODY, mdoc, tok, line, ppos))

if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))

return(0);

if (maxargs > 0) {

if (maxargs > 0)

if ( ! mdoc_tail_alloc(mdoc, line,

if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))

ppos, rew_alt(tok)))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

}

for (lastarg = ppos, flushed = j = 0; ; j++) {

for (flushed = j = 0; ; j++) {

lastarg = *pos;

if (j == maxargs && ! flushed) {

if ( ! rew_expblock(mdoc, tok, line, ppos))

if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))

return(0);

flushed = 1;

}

c = mdoc_args(mdoc, line, pos, buf, tok, &p);

c = mdoc_args(m, line, pos, buf, tok, &p);

if (ARGS_ERROR == c)

return(0);

Line 766 blk_exp_close(MACRO_PROT_ARGS)

Line 699 blk_exp_close(MACRO_PROT_ARGS)

if (ARGS_EOLN == c)

break;

if (-1 == (c = lookup(mdoc, line, lastarg, tok, p)))

if (MDOC_MAX != (c = lookup(tok, p))) {

return(0);

else if (MDOC_MAX != c) {

if ( ! flushed) {

if ( ! rew_expblock(mdoc, tok,

if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))

line, ppos))

return(0);

flushed = 1;

}

if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf))

if ( ! mdoc_macro(m, c, line, lastarg, pos, buf))

return(0);

break;

}

if ( ! mdoc_word_alloc(mdoc, line, lastarg, p))

if ( ! mdoc_word_alloc(m, line, lastarg, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

}

if ( ! flushed && ! rew_expblock(mdoc, tok, line, ppos))

if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))

return(0);

if (ppos > 1)

return(1);

return(append_delims(mdoc, line, pos, buf));

return(append_delims(m, line, pos, buf));

}

* In-line macros where reserved words cause scope close-reopen.

static int

in_line(MACRO_PROT_ARGS)

{

int la, lastpunct, c, w, cnt, d, call;

int la, lastpunct, c, w, cnt, d, nc;

struct mdoc_arg *arg;

char *p;

for (la = ppos, arg = NULL;; ) {

* 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(mdoc, line, tok, &arg, pos, buf);

c = mdoc_argv(m, line, tok, &arg, pos, buf);

if (ARGV_WORD == c) {

*pos = la;

Line 821 in_line(MACRO_PROT_ARGS)

Line 771 in_line(MACRO_PROT_ARGS)

return(0);

}

for (call = cnt = 0, lastpunct = 1;; ) {

for (cnt = 0, lastpunct = 1;; ) {

la = *pos;

w = mdoc_args(mdoc, line, pos, buf, tok, &p);

w = mdoc_args(m, line, pos, buf, tok, &p);

if (ARGS_ERROR == w)

return(0);

Line 834 in_line(MACRO_PROT_ARGS)

Line 784 in_line(MACRO_PROT_ARGS)

/* Quoted words shouldn't be looked-up. */

c = ARGS_QWORD == w ? MDOC_MAX :

c = ARGS_QWORD == w ? MDOC_MAX : lookup(tok, p);

lookup(mdoc, line, la, tok, p);

/* MDOC_MAX (not a macro) or -1 (error). */

* 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 && -1 != c) {

if (MDOC_MAX != c) {

if (0 == lastpunct && ! rew_elem(mdoc, tok))

if (0 == lastpunct && ! rew_elem(m, tok))

return(0);

if (0 == cnt) {

if (nc && 0 == cnt) {

if ( ! mdoc_elem_alloc(mdoc, line, ppos,

if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))

tok, arg))

return(0);

if ( ! rew_elem(mdoc, tok))

if ( ! rew_last(m, m->last))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

} else if ( ! nc && 0 == cnt) {

mdoc_argv_free(arg);

if ( ! mdoc_pwarn(m, line, ppos, EIGNE))

return(0);

}

c = mdoc_macro(mdoc, c, line, la, pos, buf);

c = mdoc_macro(m, c, line, la, pos, buf);

if (0 == c)

return(0);

if (ppos > 1)

return(1);

return(append_delims(mdoc, line, pos, buf));

return(append_delims(m, line, pos, buf));

} else if (-1 == c)

}

return(0);

/* Non-quote-enclosed punctuation. */

* 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);

d = ARGS_QWORD == w ? 0 : mdoc_isdelim(p);

if (ARGS_QWORD != w && d) {

if (0 == lastpunct && ! rew_elem(mdoc, tok))

if (0 == lastpunct && ! rew_elem(m, tok))

return(0);

lastpunct = 1;

} else if (lastpunct) {

c = mdoc_elem_alloc(mdoc, line, ppos, tok, arg);

if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))

if (0 == c)

return(0);

mdoc->next = MDOC_NEXT_CHILD;

lastpunct = 0;

}

if ( ! d)

cnt++;

if ( ! mdoc_word_alloc(mdoc, line, la, p))

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

* `Fl' macros have their scope re-opened with each new

* word so that the `-' can be added to each one without

* having to parse out spaces.

if (0 == lastpunct && MDOC_Fl == tok) {

if ( ! rew_elem(m, tok))

return(0);

lastpunct = 1;

}

if (0 == lastpunct && ! rew_elem(mdoc, tok))

if (0 == lastpunct && ! rew_elem(m, tok))

return(0);

if (0 == cnt) {

c = mdoc_elem_alloc(mdoc, line, ppos, tok, arg);

if (0 == c)

* 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_elem(mdoc, tok))

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(mdoc, line, pos, buf));

return(append_delims(m, line, pos, buf));

}

* Block full-explicit and full-implicit.

static int

blk_full(MACRO_PROT_ARGS)

{

int c, lastarg, reopen;

int c, la;

struct mdoc_arg *arg;

struct mdoc_node *head; /* save of head macro */

struct mdoc_node *body; /* save of body macro */

#ifdef UGLY

struct mdoc_node *n;

#endif

char *p;

/* Close out prior implicit scope. */

if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {

if ( ! rew_subblock(MDOC_BODY, mdoc,

if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))

tok, line, ppos))

return(0);

if ( ! rew_impblock(mdoc, tok, line, ppos))

if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))

return(0);

}

* This routine accomodates implicitly- and explicitly-scoped

* macro openings. Implicit ones first close out prior scope

* (seen above). Delay opening the head until necessary to

* allow leading punctuation to print. Special consideration

* for `It -column', which has phrase-part syntax instead of

* regular child nodes.

for (arg = NULL;; ) {

lastarg = *pos;

la = *pos;

c = mdoc_argv(mdoc, line, tok, &arg, pos, buf);

c = mdoc_argv(m, line, tok, &arg, pos, buf);

if (ARGV_WORD == c) {

*pos = lastarg;

*pos = la;

break;

}

Line 933 blk_full(MACRO_PROT_ARGS)

Line 923 blk_full(MACRO_PROT_ARGS)

return(0);

}

if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, arg))

if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

if (0 == buf[*pos]) {

head = body = NULL;

if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))

* The `Nd' macro has all arguments in its body: it's a hybrid

* of block partial-explicit and full-implicit. Stupid.

if (MDOC_Nd == tok) {

if ( ! mdoc_head_alloc(m, line, ppos, tok))

return(0);

if ( ! rew_subblock(MDOC_HEAD, mdoc,

head = m->last;

tok, line, ppos))

if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))

return(0);

if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))

if ( ! mdoc_body_alloc(m, line, ppos, tok))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

body = m->last;

return(1);

}

if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))

for (;;) {

return(0);

la = *pos;

mdoc->next = MDOC_NEXT_CHILD;

c = mdoc_args(m, line, pos, buf, tok, &p);

for (reopen = 0;; ) {

lastarg = *pos;

c = mdoc_args(mdoc, line, pos, buf, tok, &p);

if (ARGS_ERROR == c)

return(0);

if (ARGS_EOLN == c)

break;

if (ARGS_PHRASE == c) {

if (reopen && ! mdoc_head_alloc

/* Don't emit leading punct. for phrases. */

(mdoc, line, ppos, tok))

if (NULL == head && ARGS_PHRASE != c &&

ARGS_QWORD != c &&

1 == mdoc_isdelim(p)) {

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

continue;

}

* Phrases are self-contained macro phrases used

* in the columnar output of a macro. They need

/* Always re-open head for phrases. */

* special handling.

if (NULL == head || ARGS_PHRASE == c) {

if ( ! phrase(mdoc, line, lastarg, buf))

if ( ! mdoc_head_alloc(m, line, ppos, tok))

return(0);

if ( ! rew_subblock(MDOC_HEAD, mdoc,

head = m->last;

tok, line, ppos))

}

return(0);

reopen = 1;

if (ARGS_PHRASE == c) {

if ( ! phrase(m, line, la, buf))

return(0);

if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))

return(0);

continue;

}

if (-1 == (c = lookup(mdoc, line, lastarg, tok, p)))

c = lookup(tok, p);

if (MDOC_MAX != c) {

if ( ! mdoc_macro(m, c, line, la, pos, buf))

return(0);

break;

}

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

if (MDOC_MAX == c) {

}

if ( ! mdoc_word_alloc(mdoc, line, lastarg, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

continue;

}

if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf))

if (NULL == head) {

if ( ! mdoc_head_alloc(m, line, ppos, tok))

return(0);

break;

head = m->last;

}

if (1 == ppos && ! append_delims(mdoc, line, pos, buf))

if (1 == ppos && ! append_delims(m, line, pos, buf))

return(0);

if ( ! rew_subblock(MDOC_HEAD, mdoc, tok, line, ppos))

return(0);

if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))

/* If we've already opened our body, exit now. */

if (NULL != body)

return(1);

#ifdef UGLY

* If there is an open (i.e., unvalidated) sub-block requiring

* explicit close-out, postpone switching the current block from

* head to body until the rew_sub() call closing out that

* sub-block.

for (n = m->last; n && n != head; n = n->parent) {

if (MDOC_BLOCK == n->type &&

MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&

! (MDOC_VALID & n->flags)) {

assert( ! (MDOC_ACTED & n->flags));

n->pending = head;

return(1);

}

#endif

/* Close out scopes to remain in a consistent state. */

if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

if ( ! mdoc_body_alloc(m, line, ppos, tok))

return(0);

return(1);

}

* Block partial-imnplicit scope.

static int

blk_part_imp(MACRO_PROT_ARGS)

{

int lastarg, c;

int la, c;

char *p;

struct mdoc_node *blk, *body, *n;

struct mdoc_node *blk; /* saved block context */

struct mdoc_node *body; /* saved body context */

struct mdoc_node *n;

if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))

return(0);

* A macro that spans to the end of the line. This is generally

mdoc->next = MDOC_NEXT_CHILD;

* (but not necessarily) called as the first macro. The block

blk = mdoc->last;

* has a head as the immediate child, which is always empty,

* followed by zero or more opening punctuation nodes, then the

* body (which may be empty, depending on the macro), then zero

* or more closing punctuation nodes.

if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))

if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))

blk = m->last;

if ( ! mdoc_head_alloc(m, line, ppos, tok))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))

body = mdoc->last;

return(0);

/* XXX - no known argument macros. */

* Open the body scope "on-demand", that is, after we've

* processed all our the leading delimiters (open parenthesis,

* etc.).

for (lastarg = ppos;; ) {

for (body = NULL; ; ) {

lastarg = *pos;

la = *pos;

c = mdoc_args(mdoc, line, pos, buf, tok, &p);

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 (ARGS_PUNCT == c)

break;

if (-1 == (c = lookup(mdoc, line, lastarg, tok, p)))

if (NULL == body && ARGS_QWORD != c &&

return(0);

1 == mdoc_isdelim(p)) {

else if (MDOC_MAX == c) {

if ( ! mdoc_word_alloc(m, line, la, p))

if ( ! mdoc_word_alloc(mdoc, line, lastarg, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

continue;

}

if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf))

if (NULL == body) {

if ( ! mdoc_body_alloc(m, line, ppos, tok))

return(0);

body = m->last;

}

if (MDOC_MAX != (c = lookup(tok, p))) {

if ( ! mdoc_macro(m, c, line, la, pos, buf))

return(0);

break;

}

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

break;

}

/* Clean-ups to leave in a consistent state. */

* Since we know what our context is, we can rewind directly to

* it. This allows us to accomodate for our scope being

* violated by another token.

for (n = mdoc->last; n; n = n->parent)

if (NULL == body) {

if ( ! mdoc_body_alloc(m, line, ppos, tok))

return(0);

body = m->last;

}

* 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.

for (n = m->last; n; n = n->parent)

if (body == n)

break;

if (NULL == n && ! pwarn(mdoc, body->line, body->pos, WIMPBRK))

if (NULL == n && ! mdoc_nwarn(m, body, EIMPBRK))

return(0);

if (n && ! rew_last(mdoc, body))

if (n && ! rew_last(m, body))

return(0);

if (1 == ppos && ! append_delims(mdoc, line, pos, buf))

/* Standard appending of delimiters. */

if (1 == ppos && ! append_delims(m, line, pos, buf))

return(0);

if (n && ! rew_last(mdoc, blk))

/* Rewind scope, if applicable. */

if (n && ! rew_last(m, blk))

return(0);

return(1);

}

* Block partial-explicit macros.

static int

blk_part_exp(MACRO_PROT_ARGS)

{

int lastarg, flushed, j, c, maxargs;

int la, c;

struct mdoc_node *head; /* keep track of head */

struct mdoc_node *body; /* keep track of body */

char *p;

lastarg = ppos;

flushed = 0;

* Number of arguments (head arguments). Only `Eo' has these,

* The opening of an explicit macro having zero or more leading

* punctuation nodes; a head with optional single element (the

* case of `Eo'); and a body that may be empty.

switch (tok) {

if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))

case (MDOC_Eo):

maxargs = 1;

break;

default:

maxargs = 0;

break;

}

if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

if (0 == maxargs) {

for (head = body = NULL; ; ) {

if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))

la = *pos;

return(0);

c = mdoc_args(m, line, pos, buf, tok, &p);

if ( ! rew_subblock(MDOC_HEAD, mdoc,

tok, line, ppos))

return(0);

if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))

return(0);

flushed = 1;

} else if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

for (j = 0; ; j++) {

lastarg = *pos;

if (j == maxargs && ! flushed) {

if ( ! rew_subblock(MDOC_HEAD, mdoc,

tok, line, ppos))

return(0);

flushed = 1;

if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

}

c = mdoc_args(mdoc, line, pos, buf, tok, &p);

assert(ARGS_PHRASE != c);

if (ARGS_ERROR == c)

return(0);

if (ARGS_PUNCT == c)

Line 1152 blk_part_exp(MACRO_PROT_ARGS)

Line 1169 blk_part_exp(MACRO_PROT_ARGS)

if (ARGS_EOLN == c)

break;

if (-1 == (c = lookup(mdoc, line, lastarg, tok, p)))

assert(ARGS_PHRASE != c);

return(0);

else if (MDOC_MAX != c) {

/* Flush out leading punctuation. */

if ( ! flushed) {

if ( ! rew_subblock(MDOC_HEAD, mdoc,

if (NULL == head && ARGS_QWORD != c &&

tok, line, ppos))

1 == mdoc_isdelim(p)) {

return(0);

assert(NULL == body);

flushed = 1;

if ( ! mdoc_word_alloc(m, line, la, p))

if ( ! mdoc_body_alloc(mdoc, line,

ppos, tok))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

}

if ( ! mdoc_macro(mdoc, c, line, lastarg,

pos, buf))

return(0);

break;

continue;

}

if (NULL == head) {

assert(NULL == body);

if ( ! mdoc_head_alloc(m, line, ppos, tok))

return(0);

head = m->last;

}

if ( ! flushed && mdoc_isdelim(p)) {

if ( ! rew_subblock(MDOC_HEAD, mdoc,

* `Eo' gobbles any data into the head, but most other

tok, line, ppos))

* macros just immediately close out and begin the body.

if (NULL == body) {

assert(head);

/* No check whether it's a macro! */

if (MDOC_Eo == tok)

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))

return(0);

flushed = 1;

if ( ! mdoc_body_alloc(m, line, ppos, tok))

if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

body = m->last;

if (MDOC_Eo == tok)

continue;

}

if ( ! mdoc_word_alloc(mdoc, line, lastarg, p))

assert(NULL != head && NULL != body);

if (MDOC_MAX != (c = lookup(tok, p))) {

if ( ! mdoc_macro(m, c, line, la, pos, buf))

return(0);

break;

}

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

}

if ( ! flushed) {

/* Clean-up to leave in a consistent state. */

if ( ! rew_subblock(MDOC_HEAD, mdoc, tok, line, ppos))

if (NULL == head) {

if ( ! mdoc_head_alloc(m, line, ppos, tok))

return(0);

if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))

head = m->last;

}

if (NULL == body) {

if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

if ( ! mdoc_body_alloc(m, line, ppos, tok))

return(0);

body = m->last;

}

/* Standard appending of delimiters. */

if (ppos > 1)

return(1);

return(append_delims(mdoc, line, pos, buf));

return(append_delims(m, line, pos, buf));

}

* In-line macros where reserved words signal closure of the macro.

* Macros also have a fixed number of arguments.

static int

in_line_argn(MACRO_PROT_ARGS)

{

int lastarg, flushed, j, c, maxargs;

int la, flushed, j, c, maxargs;

struct mdoc_arg *arg;

char *p;

* A line macro that has a fixed number of arguments (maxargs).

* Fixed maximum arguments per macro. Some of these have none

* Only open the scope once the first non-leading-punctuation is

* and close as soon as the invocation is parsed.

* found (unless MDOC_IGNDELIM is noted, like in `Pf'), then

* keep it open until the maximum number of arguments are

* exhausted.

switch (tok) {

Line 1227 in_line_argn(MACRO_PROT_ARGS)

Line 1272 in_line_argn(MACRO_PROT_ARGS)

case (MDOC_Ux):

maxargs = 0;

break;

case (MDOC_Xr):

maxargs = 2;

break;

default:

maxargs = 1;

break;

}

for (lastarg = ppos, arg = NULL;; ) {

for (arg = NULL; ; ) {

lastarg = *pos;

la = *pos;

c = mdoc_argv(mdoc, line, tok, &arg, pos, buf);

c = mdoc_argv(m, line, tok, &arg, pos, buf);

if (ARGV_WORD == c) {

*pos = lastarg;

*pos = la;

break;

}

Line 1250 in_line_argn(MACRO_PROT_ARGS)

Line 1298 in_line_argn(MACRO_PROT_ARGS)

return(0);

}

if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))

for (flushed = j = 0; ; ) {

return(0);

la = *pos;

mdoc->next = MDOC_NEXT_CHILD;

c = mdoc_args(m, line, pos, buf, tok, &p);

for (flushed = j = 0; ; j++) {

lastarg = *pos;

if (j == maxargs && ! flushed) {

if ( ! rew_elem(mdoc, tok))

return(0);

flushed = 1;

}

c = mdoc_args(mdoc, line, pos, buf, tok, &p);

if (ARGS_ERROR == c)

return(0);

if (ARGS_PUNCT == c)

Line 1272 in_line_argn(MACRO_PROT_ARGS)

Line 1309 in_line_argn(MACRO_PROT_ARGS)

if (ARGS_EOLN == c)

break;

if (-1 == (c = lookup(mdoc, line, lastarg, tok, p)))

if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&

return(0);

ARGS_QWORD != c &&

else if (MDOC_MAX != c) {

0 == j && 1 == mdoc_isdelim(p)) {

if ( ! flushed && ! rew_elem(mdoc, tok))

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

continue;

} else if (0 == j)

if ( ! mdoc_elem_alloc(m, line, la, tok, arg))

return(0);

if (j == maxargs && ! flushed) {

if ( ! rew_elem(m, tok))

return(0);

flushed = 1;

if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf))

}

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);

j++;

break;

}

if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&

ARGS_QWORD != c &&

! flushed && mdoc_isdelim(p)) {

if ( ! rew_elem(mdoc, tok))

if ( ! rew_elem(m, tok))

return(0);

flushed = 1;

}

if ( ! mdoc_word_alloc(mdoc, line, lastarg, p))

* XXX: this is a hack to work around groff's ugliness

* as regards `Xr' and extraneous arguments. It should

* ideally be deprecated behaviour, but because this is

* code is no here, it's unlikely to be removed.

#ifdef __OpenBSD__

if (MDOC_Xr == tok && j == maxargs) {

if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))

return(0);

if ( ! rew_elem(m, MDOC_Ns))

return(0);

}

#endif

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

j++;

}

if ( ! flushed && ! rew_elem(mdoc, tok))

if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))

return(0);

/* Close out in a consistent state. */

if ( ! flushed && ! rew_elem(m, tok))

return(0);

if (ppos > 1)

return(1);

return(append_delims(mdoc, line, pos, buf));

return(append_delims(m, line, pos, buf));

}

* In-line macro that spans an entire line. May be callable, but has no

* subsequent parsed arguments.

static int

in_line_eoln(MACRO_PROT_ARGS)

{

Line 1317 in_line_eoln(MACRO_PROT_ARGS)

Line 1387 in_line_eoln(MACRO_PROT_ARGS)

assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));

arg = NULL;

/* Parse macro arguments. */

for (;;) {

for (arg = NULL; ; ) {

la = *pos;

c = mdoc_argv(mdoc, line, tok, &arg, pos, buf);

c = mdoc_argv(m, line, tok, &arg, pos, buf);

if (ARGV_WORD == c) {

*pos = la;

Line 1336 in_line_eoln(MACRO_PROT_ARGS)

Line 1406 in_line_eoln(MACRO_PROT_ARGS)

return(0);

}

if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))

/* Open element scope. */

if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))

return(0);

mdoc->next = MDOC_NEXT_CHILD;

/* Parse argument terms. */

for (;;) {

la = *pos;

w = mdoc_args(mdoc, line, pos, buf, tok, &p);

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 :

c = ARGS_QWORD == w ? MDOC_MAX : lookup(tok, p);

lookup(mdoc, line, la, tok, p);

if (MDOC_MAX != c && -1 != c) {

if (MDOC_MAX != c) {

if ( ! rew_elem(mdoc, tok))

if ( ! rew_elem(m, tok))

return(0);

return(mdoc_macro(mdoc, c, line, la, pos, buf));

return(mdoc_macro(m, c, line, la, pos, buf));

} else if (-1 == c)

}

return(0);

if ( ! mdoc_word_alloc(mdoc, line, la, p))

if ( ! mdoc_word_alloc(m, line, la, p))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

}

return(rew_elem(mdoc, tok));

/* Close out (no delimiters). */

return(rew_elem(m, tok));

}

/* ARGSUSED */

static int

obsolete(MACRO_PROT_ARGS)

ctx_synopsis(MACRO_PROT_ARGS)

{

return(pwarn(mdoc, line, ppos, WOBS));

/* If we're not in the SYNOPSIS, go straight to in-line. */

}

if (SEC_SYNOPSIS != m->lastsec)

return(in_line(m, tok, line, ppos, pos, buf));

/* If we're a nested call, same place. */

if (ppos > 1)

return(in_line(m, tok, line, ppos, pos, buf));

static int

phrase(struct mdoc *mdoc, int line, int ppos, char *buf)

{

int i, la, c, quoted;

* Parse over words in a phrase. We have to handle this

* XXX: this will open a block scope; however, if later we end

* specially because we assume no calling context -- in normal

* up formatting the block scope, then child nodes will inherit

* circumstances, we switch argument parsing based on whether

* the formatting. Be careful.

* the parent macro accepts quotes, tabs, etc. Here, anything

* goes.

for (i = ppos; buf[i]; ) {

return(blk_part_imp(m, tok, line, ppos, pos, buf));

assert(' ' != buf[i]);

}

la = i;

quoted = 0;

* Read to next token. If quoted (check not escaped),

* scan ahead to next unescaped quote. If not quoted or

* escape-quoted, then scan ahead to next space.

if ((i && '\"' == buf[i] && '\\' != buf[i - 1]) ||

/* ARGSUSED */

(0 == i && '\"' == buf[i])) {

static int

for (la = ++i; buf[i]; i++)

obsolete(MACRO_PROT_ARGS)

if ('\"' != buf[i])

{

continue;

else if ('\\' != buf[i - 1])

break;

if (0 == buf[i])

return(perr(mdoc, line, la, EQUOT));

quoted = 1;

} else

for ( ; buf[i]; i++)

if (i && ' ' == buf[i]) {

if ('\\' != buf[i - 1])

break;

} else if (' ' == buf[i])

break;

/* If not end-of-line, terminate argument. */

return(mdoc_pwarn(m, line, ppos, EOBS));

}

if (buf[i])

buf[i++] = 0;

/* Read to next argument. */

* 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 ( ; buf[i] && ' ' == buf[i]; i++)

for (pos = ppos; ; ) {

/* Spin. */ ;

la = pos;

/* Note: no calling context! */

* If we're a non-quoted string, try to look up the

w = mdoc_zargs(m, line, &pos, buf, 0, &p);

* value as a macro and execute it, if found.

c = quoted ? MDOC_MAX :

if (ARGS_ERROR == w)

mdoc_tokhash_find(mdoc->htab, &buf[la]);

return(0);

if (ARGS_EOLN == w)

break;

c = ARGS_QWORD == w ? MDOC_MAX : lookup_raw(p);

if (MDOC_MAX != c) {

if ( ! mdoc_macro(mdoc, c, line, la, &i, buf))

if ( ! mdoc_macro(m, c, line, la, &pos, buf))

return(0);

return(append_delims(mdoc, line, &i, buf));

return(append_delims(m, line, &pos, buf));

}

/* A regular word or quoted string. */

if ( ! mdoc_word_alloc(m, line, la, p))

if ( ! mdoc_word_alloc(mdoc, line, la, &buf[la]))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

}

return(1);

}

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