/* $Id$ */
/*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef OSNAME
#include <sys/utsname.h>
#endif
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "libmdoc.h"
#include "libmandoc.h"
#define POST_ARGS struct mdoc *m, struct mdoc_node *n
#define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
#define NUMSIZ 32
#define DATESIZ 32
struct actions {
int (*pre)(PRE_ARGS);
int (*post)(POST_ARGS);
};
static int concat(struct mdoc *, char *,
const struct mdoc_node *, size_t);
static inline int order_rs(enum mdoct);
static int post_ar(POST_ARGS);
static int post_at(POST_ARGS);
static int post_bl(POST_ARGS);
static int post_bl_head(POST_ARGS);
static int post_bl_tagwidth(POST_ARGS);
static int post_bl_width(POST_ARGS);
static int post_dd(POST_ARGS);
static int post_display(POST_ARGS);
static int post_dt(POST_ARGS);
static int post_lb(POST_ARGS);
static int post_nm(POST_ARGS);
static int post_os(POST_ARGS);
static int post_pa(POST_ARGS);
static int post_prol(POST_ARGS);
static int post_rs(POST_ARGS);
static int post_sh(POST_ARGS);
static int post_st(POST_ARGS);
static int post_std(POST_ARGS);
static int pre_bd(PRE_ARGS);
static int pre_bl(PRE_ARGS);
static int pre_dl(PRE_ARGS);
static int pre_offset(PRE_ARGS);
static const struct actions mdoc_actions[MDOC_MAX] = {
{ NULL, NULL }, /* Ap */
{ NULL, post_dd }, /* Dd */
{ NULL, post_dt }, /* Dt */
{ NULL, post_os }, /* Os */
{ NULL, post_sh }, /* Sh */
{ NULL, NULL }, /* Ss */
{ NULL, NULL }, /* Pp */
{ NULL, NULL }, /* D1 */
{ pre_dl, post_display }, /* Dl */
{ pre_bd, post_display }, /* Bd */
{ NULL, NULL }, /* Ed */
{ pre_bl, post_bl }, /* Bl */
{ NULL, NULL }, /* El */
{ NULL, NULL }, /* It */
{ NULL, NULL }, /* Ad */
{ NULL, NULL }, /* An */
{ NULL, post_ar }, /* Ar */
{ NULL, NULL }, /* Cd */
{ NULL, NULL }, /* Cm */
{ NULL, NULL }, /* Dv */
{ NULL, NULL }, /* Er */
{ NULL, NULL }, /* Ev */
{ NULL, post_std }, /* Ex */
{ NULL, NULL }, /* Fa */
{ NULL, NULL }, /* Fd */
{ NULL, NULL }, /* Fl */
{ NULL, NULL }, /* Fn */
{ NULL, NULL }, /* Ft */
{ NULL, NULL }, /* Ic */
{ NULL, NULL }, /* In */
{ NULL, NULL }, /* Li */
{ NULL, NULL }, /* Nd */
{ NULL, post_nm }, /* Nm */
{ NULL, NULL }, /* Op */
{ NULL, NULL }, /* Ot */
{ NULL, post_pa }, /* Pa */
{ NULL, post_std }, /* Rv */
{ NULL, post_st }, /* St */
{ NULL, NULL }, /* Va */
{ NULL, NULL }, /* Vt */
{ NULL, NULL }, /* Xr */
{ NULL, NULL }, /* %A */
{ NULL, NULL }, /* %B */
{ NULL, NULL }, /* %D */
{ NULL, NULL }, /* %I */
{ NULL, NULL }, /* %J */
{ NULL, NULL }, /* %N */
{ NULL, NULL }, /* %O */
{ NULL, NULL }, /* %P */
{ NULL, NULL }, /* %R */
{ NULL, NULL }, /* %T */
{ NULL, NULL }, /* %V */
{ NULL, NULL }, /* Ac */
{ NULL, NULL }, /* Ao */
{ NULL, NULL }, /* Aq */
{ NULL, post_at }, /* At */
{ NULL, NULL }, /* Bc */
{ NULL, NULL }, /* Bf */
{ NULL, NULL }, /* Bo */
{ NULL, NULL }, /* Bq */
{ NULL, NULL }, /* Bsx */
{ NULL, NULL }, /* Bx */
{ NULL, NULL }, /* Db */
{ NULL, NULL }, /* Dc */
{ NULL, NULL }, /* Do */
{ NULL, NULL }, /* Dq */
{ NULL, NULL }, /* Ec */
{ NULL, NULL }, /* Ef */
{ NULL, NULL }, /* Em */
{ NULL, NULL }, /* Eo */
{ NULL, NULL }, /* Fx */
{ NULL, NULL }, /* Ms */
{ NULL, NULL }, /* No */
{ NULL, NULL }, /* Ns */
{ NULL, NULL }, /* Nx */
{ NULL, NULL }, /* Ox */
{ NULL, NULL }, /* Pc */
{ NULL, NULL }, /* Pf */
{ NULL, NULL }, /* Po */
{ NULL, NULL }, /* Pq */
{ NULL, NULL }, /* Qc */
{ NULL, NULL }, /* Ql */
{ NULL, NULL }, /* Qo */
{ NULL, NULL }, /* Qq */
{ NULL, NULL }, /* Re */
{ NULL, post_rs }, /* Rs */
{ NULL, NULL }, /* Sc */
{ NULL, NULL }, /* So */
{ NULL, NULL }, /* Sq */
{ NULL, NULL }, /* Sm */
{ NULL, NULL }, /* Sx */
{ NULL, NULL }, /* Sy */
{ NULL, NULL }, /* Tn */
{ NULL, NULL }, /* Ux */
{ NULL, NULL }, /* Xc */
{ NULL, NULL }, /* Xo */
{ NULL, NULL }, /* Fo */
{ NULL, NULL }, /* Fc */
{ NULL, NULL }, /* Oo */
{ NULL, NULL }, /* Oc */
{ NULL, NULL }, /* Bk */
{ NULL, NULL }, /* Ek */
{ NULL, NULL }, /* Bt */
{ NULL, NULL }, /* Hf */
{ NULL, NULL }, /* Fr */
{ NULL, NULL }, /* Ud */
{ NULL, post_lb }, /* Lb */
{ NULL, NULL }, /* Lp */
{ NULL, NULL }, /* Lk */
{ NULL, NULL }, /* Mt */
{ NULL, NULL }, /* Brq */
{ NULL, NULL }, /* Bro */
{ NULL, NULL }, /* Brc */
{ NULL, NULL }, /* %C */
{ NULL, NULL }, /* Es */
{ NULL, NULL }, /* En */
{ NULL, NULL }, /* Dx */
{ NULL, NULL }, /* %Q */
{ NULL, NULL }, /* br */
{ NULL, NULL }, /* sp */
{ NULL, NULL }, /* %U */
};
#define RSORD_MAX 14
static const enum mdoct rsord[RSORD_MAX] = {
MDOC__A,
MDOC__T,
MDOC__B,
MDOC__I,
MDOC__J,
MDOC__R,
MDOC__N,
MDOC__V,
MDOC__P,
MDOC__Q,
MDOC__D,
MDOC__O,
MDOC__C,
MDOC__U
};
int
mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
{
switch (n->type) {
case (MDOC_ROOT):
/* FALLTHROUGH */
case (MDOC_TEXT):
return(1);
default:
break;
}
if (NULL == mdoc_actions[n->tok].pre)
return(1);
return((*mdoc_actions[n->tok].pre)(m, n));
}
int
mdoc_action_post(struct mdoc *m)
{
if (MDOC_ACTED & m->last->flags)
return(1);
m->last->flags |= MDOC_ACTED;
switch (m->last->type) {
case (MDOC_TEXT):
/* FALLTHROUGH */
case (MDOC_ROOT):
return(1);
default:
break;
}
if (NULL == mdoc_actions[m->last->tok].post)
return(1);
return((*mdoc_actions[m->last->tok].post)(m, m->last));
}
/*
* Concatenate sibling nodes together. All siblings must be of type
* MDOC_TEXT or an assertion is raised. Concatenation is separated by a
* single whitespace.
*/
static int
concat(struct mdoc *m, char *p, const struct mdoc_node *n, size_t sz)
{
assert(sz);
p[0] = '\0';
for ( ; n; n = n->next) {
assert(MDOC_TEXT == n->type);
if (strlcat(p, n->string, sz) >= sz)
return(mdoc_nerr(m, n, ETOOLONG));
if (NULL == n->next)
continue;
if (strlcat(p, " ", sz) >= sz)
return(mdoc_nerr(m, n, ETOOLONG));
}
return(1);
}
/*
* Macros accepting `-std' as an argument have the name of the current
* document (`Nm') filled in as the argument if it's not provided.
*/
static int
post_std(POST_ARGS)
{
struct mdoc_node *nn;
if (n->child)
return(1);
nn = n;
m->next = MDOC_NEXT_CHILD;
assert(m->meta.name);
if ( ! mdoc_word_alloc(m, n->line, n->pos, m->meta.name))
return(0);
m->last = nn;
return(1);
}
/*
* The `Nm' macro's first use sets the name of the document. See also
* post_std(), etc.
*/
static int
post_nm(POST_ARGS)
{
char buf[BUFSIZ];
if (m->meta.name)
return(1);
if ( ! concat(m, buf, n->child, BUFSIZ))
return(0);
m->meta.name = mandoc_strdup(buf);
return(1);
}
/*
* Look up the value of `Lb' for matching predefined strings. If it has
* one, then substitute the current value for the formatted value. Note
* that the lookup may fail (we can provide arbitrary strings).
*/
/* ARGSUSED */
static int
post_lb(POST_ARGS)
{
const char *p;
char *buf;
size_t sz;
assert(MDOC_TEXT == n->child->type);
p = mdoc_a2lib(n->child->string);
if (p) {
free(n->child->string);
n->child->string = mandoc_strdup(p);
return(1);
}
sz = strlen(n->child->string) +
2 + strlen("\\(lqlibrary\\(rq");
buf = mandoc_malloc(sz);
snprintf(buf, sz, "library \\(lq%s\\(rq", n->child->string);
free(n->child->string);
n->child->string = buf;
return(1);
}
/*
* Substitute the value of `St' for the corresponding formatted string.
* We're guaranteed that this exists (it's been verified during the
* validation phase).
*/
/* ARGSUSED */
static int
post_st(POST_ARGS)
{
const char *p;
assert(MDOC_TEXT == n->child->type);
p = mdoc_a2st(n->child->string);
assert(p);
free(n->child->string);
n->child->string = mandoc_strdup(p);
return(1);
}
/*
* Look up the standard string in a table. We know that it exists from
* the validation phase, so assert on failure. If a standard key wasn't
* supplied, supply the default ``AT&T UNIX''.
*/
static int
post_at(POST_ARGS)
{
struct mdoc_node *nn;
const char *p;
if (n->child) {
assert(MDOC_TEXT == n->child->type);
p = mdoc_a2att(n->child->string);
assert(p);
free(n->child->string);
n->child->string = mandoc_strdup(p);
return(1);
}
nn = n;
m->next = MDOC_NEXT_CHILD;
if ( ! mdoc_word_alloc(m, nn->line, nn->pos, "AT&T UNIX"))
return(0);
m->last = nn;
return(1);
}
/*
* Mark the current section. The ``named'' section (lastnamed) is set
* whenever the current section isn't a custom section--we use this to
* keep track of section ordering. Also check that the section is
* allowed within the document's manual section.
*/
static int
post_sh(POST_ARGS)
{
enum mdoc_sec sec;
char buf[BUFSIZ];
if (MDOC_HEAD != n->type)
return(1);
if ( ! concat(m, buf, n->child, BUFSIZ))
return(0);
sec = mdoc_str2sec(buf);
/*
* The first section should always make us move into a non-new
* state.
*/
if (SEC_NONE == m->lastnamed || SEC_CUSTOM != sec)
m->lastnamed = sec;
/* Some sections only live in certain manual sections. */
switch ((m->lastsec = sec)) {
case (SEC_RETURN_VALUES):
/* FALLTHROUGH */
case (SEC_ERRORS):
switch (m->meta.msec) {
case (2):
/* FALLTHROUGH */
case (3):
/* FALLTHROUGH */
case (9):
break;
default:
return(mdoc_nwarn(m, n, EBADSEC));
}
break;
default:
break;
}
return(1);
}
/*
* Parse out the contents of `Dt'. See in-line documentation for how we
* handle the various fields of this macro.
*/
static int
post_dt(POST_ARGS)
{
struct mdoc_node *nn;
const char *cp;
char *ep;
long lval;
if (m->meta.title)
free(m->meta.title);
if (m->meta.vol)
free(m->meta.vol);
if (m->meta.arch)
free(m->meta.arch);
m->meta.title = m->meta.vol = m->meta.arch = NULL;
m->meta.msec = 0;
/* Handles: `.Dt'
* --> title = unknown, volume = local, msec = 0, arch = NULL
*/
if (NULL == (nn = n->child)) {
/* XXX: make these macro values. */
m->meta.title = mandoc_strdup("unknown");
m->meta.vol = mandoc_strdup("local");
return(post_prol(m, n));
}
/* Handles: `.Dt TITLE'
* --> title = TITLE, volume = local, msec = 0, arch = NULL
*/
m->meta.title = mandoc_strdup(nn->string);
if (NULL == (nn = nn->next)) {
/* XXX: make this a macro value. */
m->meta.vol = mandoc_strdup("local");
return(post_prol(m, n));
}
/* Handles: `.Dt TITLE SEC'
* --> title = TITLE, volume = SEC is msec ?
* format(msec) : SEC,
* msec = SEC is msec ? atoi(msec) : 0,
* arch = NULL
*/
cp = mdoc_a2msec(nn->string);
if (cp) {
/* FIXME: where is strtonum!? */
m->meta.vol = mandoc_strdup(cp);
lval = strtol(nn->string, &ep, 10);
if (nn->string[0] != '\0' && *ep == '\0')
m->meta.msec = (int)lval;
} else
m->meta.vol = mandoc_strdup(nn->string);
if (NULL == (nn = nn->next))
return(post_prol(m, n));
/* Handles: `.Dt TITLE SEC VOL'
* --> title = TITLE, volume = VOL is vol ?
* format(VOL) :
* VOL is arch ? format(arch) :
* VOL
*/
cp = mdoc_a2vol(nn->string);
if (cp) {
free(m->meta.vol);
m->meta.vol = mandoc_strdup(cp);
} else {
cp = mdoc_a2arch(nn->string);
if (NULL == cp) {
free(m->meta.vol);
m->meta.vol = mandoc_strdup(nn->string);
} else
m->meta.arch = mandoc_strdup(cp);
}
/* Ignore any subsequent parameters... */
/* FIXME: warn about subsequent parameters. */
return(post_prol(m, n));
}
/*
* Set the operating system by way of the `Os' macro. Note that if an
* argument isn't provided and -DOSNAME="\"foo\"" is provided during
* compilation, this value will be used instead of filling in "sysname
* release" from uname().
*/
static int
post_os(POST_ARGS)
{
char buf[BUFSIZ];
#ifndef OSNAME
struct utsname utsname;
#endif
if (m->meta.os)
free(m->meta.os);
if ( ! concat(m, buf, n->child, BUFSIZ))
return(0);
if ('\0' == buf[0]) {
#ifdef OSNAME
if (strlcat(buf, OSNAME, BUFSIZ) >= BUFSIZ)
return(mdoc_nerr(m, n, EUTSNAME));
#else /*!OSNAME */
if (-1 == uname(&utsname))
return(mdoc_nerr(m, n, EUTSNAME));
if (strlcat(buf, utsname.sysname, BUFSIZ) >= BUFSIZ)
return(mdoc_nerr(m, n, ETOOLONG));
if (strlcat(buf, " ", 64) >= BUFSIZ)
return(mdoc_nerr(m, n, ETOOLONG));
if (strlcat(buf, utsname.release, BUFSIZ) >= BUFSIZ)
return(mdoc_nerr(m, n, ETOOLONG));
#endif /*!OSNAME*/
}
m->meta.os = mandoc_strdup(buf);
return(post_prol(m, n));
}
/*
* Calculate the -width for a `Bl -tag' list if it hasn't been provided.
* Uses the first head macro. NOTE AGAIN: this is ONLY if the -width
* argument has NOT been provided. See post_bl_width() for converting
* the -width string.
*/
static int
post_bl_tagwidth(POST_ARGS)
{
struct mdoc_node *nn;
size_t sz;
int i;
char buf[NUMSIZ];
/* Defaults to ten ens. */
sz = 10; /* XXX: make this a macro value. */
nn = n->body->child;
if (nn) {
assert(MDOC_BLOCK == nn->type);
assert(MDOC_It == nn->tok);
nn = nn->head->child;
if (MDOC_TEXT != nn->type) {
sz = mdoc_macro2len(nn->tok);
if (sz == 0) {
if ( ! mdoc_nwarn(m, n, ENOWIDTH))
return(0);
sz = 10;
}
} else
sz = strlen(nn->string) + 1;
}
snprintf(buf, NUMSIZ, "%zun", sz);
/*
* We have to dynamically add this to the macro's argument list.
* We're guaranteed that a MDOC_Width doesn't already exist.
*/
nn = n;
assert(nn->args);
i = (int)(nn->args->argc)++;
nn->args->argv = mandoc_realloc(nn->args->argv,
nn->args->argc * sizeof(struct mdoc_argv));
nn->args->argv[i].arg = MDOC_Width;
nn->args->argv[i].line = n->line;
nn->args->argv[i].pos = n->pos;
nn->args->argv[i].sz = 1;
nn->args->argv[i].value = mandoc_malloc(sizeof(char *));
nn->args->argv[i].value[0] = mandoc_strdup(buf);
return(1);
}
/*
* Calculate the real width of a list from the -width string, which may
* contain a macro (with a known default width), a literal string, or a
* scaling width.
*/
static int
post_bl_width(POST_ARGS)
{
size_t width;
int i;
enum mdoct tok;
char buf[NUMSIZ];
char *p;
if (NULL == n->args)
return(1);
for (i = 0; i < (int)n->args->argc; i++)
if (MDOC_Width == n->args->argv[i].arg)
break;
if (i == (int)n->args->argc)
return(1);
p = n->args->argv[i].value[0];
/*
* If the value to -width is a macro, then we re-write it to be
* the macro's width as set in share/tmac/mdoc/doc-common.
*/
if (0 == strcmp(p, "Ds"))
/* XXX: make into a macro. */
width = 6;
else if (MDOC_MAX == (tok = mdoc_hash_find(p)))
return(1);
else if (0 == (width = mdoc_macro2len(tok)))
return(mdoc_nwarn(m, n, ENOWIDTH));
/* The value already exists: free and reallocate it. */
snprintf(buf, NUMSIZ, "%zun", width);
free(n->args->argv[i].value[0]);
n->args->argv[i].value[0] = mandoc_strdup(buf);
return(1);
}
/*
* Do processing for -column lists, which can have two distinct styles
* of invocation. Merge this two styles into a consistent form.
*/
/* ARGSUSED */
static int
post_bl_head(POST_ARGS)
{
int i, c;
struct mdoc_node *np, *nn, *nnp;
if (NULL == n->child)
return(1);
np = n->parent;
assert(np->args);
for (c = 0; c < (int)np->args->argc; c++)
if (MDOC_Column == np->args->argv[c].arg)
break;
if (c == (int)np->args->argc)
return(1);
assert(0 == np->args->argv[c].sz);
/*
* Accomodate for new-style groff column syntax. Shuffle the
* child nodes, all of which must be TEXT, as arguments for the
* column field. Then, delete the head children.
*/
np->args->argv[c].sz = (size_t)n->nchild;
np->args->argv[c].value = mandoc_malloc
((size_t)n->nchild * sizeof(char *));
for (i = 0, nn = n->child; nn; i++) {
np->args->argv[c].value[i] = nn->string;
nn->string = NULL;
nnp = nn;
nn = nn->next;
mdoc_node_delete(NULL, nnp);
}
n->nchild = 0;
n->child = NULL;
return(1);
}
static int
post_bl(POST_ARGS)
{
int i, r, len;
if (MDOC_HEAD == n->type)
return(post_bl_head(m, n));
if (MDOC_BLOCK != n->type)
return(1);
/*
* These are fairly complicated, so we've broken them into two
* functions. post_bl_tagwidth() is called when a -tag is
* specified, but no -width (it must be guessed). The second
* when a -width is specified (macro indicators must be
* rewritten into real lengths).
*/
len = (int)(n->args ? n->args->argc : 0);
for (r = i = 0; i < len; i++) {
if (MDOC_Tag == n->args->argv[i].arg)
r |= 1 << 0;
if (MDOC_Width == n->args->argv[i].arg)
r |= 1 << 1;
}
if (r & (1 << 0) && ! (r & (1 << 1))) {
if ( ! post_bl_tagwidth(m, n))
return(0);
} else if (r & (1 << 1))
if ( ! post_bl_width(m, n))
return(0);
return(1);
}
/*
* The `Pa' macro defaults to a tilde if no value is provided as an
* argument.
*/
static int
post_pa(POST_ARGS)
{
struct mdoc_node *np;
if (n->child)
return(1);
np = n;
m->next = MDOC_NEXT_CHILD;
/* XXX: make into macro value. */
if ( ! mdoc_word_alloc(m, n->line, n->pos, "~"))
return(0);
m->last = np;
return(1);
}
/*
* The `Ar' macro defaults to two strings "file ..." if no value is
* provided as an argument.
*/
static int
post_ar(POST_ARGS)
{
struct mdoc_node *np;
if (n->child)
return(1);
np = n;
m->next = MDOC_NEXT_CHILD;
/* XXX: make into macro values. */
if ( ! mdoc_word_alloc(m, n->line, n->pos, "file"))
return(0);
if ( ! mdoc_word_alloc(m, n->line, n->pos, "..."))
return(0);
m->last = np;
return(1);
}
/*
* Parse the date field in `Dd'.
*/
static int
post_dd(POST_ARGS)
{
char buf[DATESIZ];
if ( ! concat(m, buf, n->child, DATESIZ))
return(0);
m->meta.date = mandoc_a2time
(MTIME_MDOCDATE | MTIME_CANONICAL, buf);
if (0 == m->meta.date) {
if ( ! mdoc_nwarn(m, n, EBADDATE))
return(0);
m->meta.date = time(NULL);
}
return(post_prol(m, n));
}
/*
* Remove prologue macros from the document after they're processed.
* The final document uses mdoc_meta for these values and discards the
* originals.
*/
static int
post_prol(POST_ARGS)
{
mdoc_node_delete(m, n);
if (m->meta.title && m->meta.date && m->meta.os)
m->flags |= MDOC_PBODY;
return(1);
}
/*
* Trigger a literal context.
*/
static int
pre_dl(PRE_ARGS)
{
if (MDOC_BODY == n->type)
m->flags |= MDOC_LITERAL;
return(1);
}
/* ARGSUSED */
static int
pre_offset(PRE_ARGS)
{
int i;
/*
* Make sure that an empty offset produces an 8n length space as
* stipulated by mdoc.samples.
*/
assert(n->args);
for (i = 0; i < (int)n->args->argc; i++) {
if (MDOC_Offset != n->args->argv[i].arg)
continue;
if (n->args->argv[i].sz)
break;
assert(1 == n->args->refcnt);
/* If no value set, length of <string>. */
n->args->argv[i].sz++;
n->args->argv[i].value = mandoc_malloc(sizeof(char *));
n->args->argv[i].value[0] = mandoc_strdup("8n");
break;
}
return(1);
}
static int
pre_bl(PRE_ARGS)
{
return(MDOC_BLOCK == n->type ? pre_offset(m, n) : 1);
}
static int
pre_bd(PRE_ARGS)
{
int i;
if (MDOC_BLOCK == n->type)
return(pre_offset(m, n));
if (MDOC_BODY != n->type)
return(1);
/* Enter literal context if `Bd -literal' or `-unfilled'. */
for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
if (MDOC_Literal == n->args->argv[i].arg)
m->flags |= MDOC_LITERAL;
else if (MDOC_Unfilled == n->args->argv[i].arg)
m->flags |= MDOC_LITERAL;
return(1);
}
static int
post_display(POST_ARGS)
{
if (MDOC_BODY == n->type)
m->flags &= ~MDOC_LITERAL;
return(1);
}
static inline int
order_rs(enum mdoct t)
{
int i;
for (i = 0; i < (int)RSORD_MAX; i++)
if (rsord[i] == t)
return(i);
abort();
/* NOTREACHED */
}
/* ARGSUSED */
static int
post_rs(POST_ARGS)
{
struct mdoc_node *nn, *next, *prev;
int o;
if (MDOC_BLOCK != n->type)
return(1);
assert(n->body->child);
for (next = NULL, nn = n->body->child->next; nn; nn = next) {
o = order_rs(nn->tok);
/* Remove `nn' from the chain. */
next = nn->next;
if (next)
next->prev = nn->prev;
prev = nn->prev;
if (prev)
prev->next = nn->next;
nn->prev = nn->next = NULL;
/*
* Scan back until we reach a node that's ordered before
* us, then set ourselves as being the next.
*/
for ( ; prev; prev = prev->prev)
if (order_rs(prev->tok) <= o)
break;
nn->prev = prev;
if (prev) {
if (prev->next)
prev->next->prev = nn;
nn->next = prev->next;
prev->next = nn;
continue;
}
n->body->child->prev = nn;
nn->next = n->body->child;
n->body->child = nn;
}
return(1);
}
