static void
in_line_eoln(MACRO_PROT_ARGS)
{
struct roff_node *n;
struct mdoc_arg *arg;
if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
! (mdoc->flags & MDOC_SYNOPSIS)) {
n = mdoc->last;
if (mdoc->next == ROFF_NEXT_SIBLING)
n = n->parent;
if (n->tok == MDOC_Nm)
rew_last(mdoc, n->parent);
}
if (buf[*pos] == '\0' &&
(tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
line, ppos, mdoc_macronames[tok]);
return;
}
mdoc_argv(mdoc, line, tok, &arg, pos, buf);
mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
if (parse_rest(mdoc, tok, line, pos, buf))
return;
rew_elem(mdoc, tok);
}
static void
in_line(MACRO_PROT_ARGS)
{
int la, scope, cnt, firstarg, mayopen, nc, nl;
int ntok;
enum margserr ac;
enum mdelim d;
struct mdoc_arg *arg;
char *p;
nl = MDOC_NEWLINE & mdoc->flags;
/*
* Whether we allow ignored elements (those without content,
* usually because of reserved words) to squeak by.
*/
switch (tok) {
case MDOC_An:
case MDOC_Ar:
case MDOC_Fl:
case MDOC_Mt:
case MDOC_Nm:
case MDOC_Pa:
nc = 1;
break;
default:
nc = 0;
break;
}
mdoc_argv(mdoc, line, tok, &arg, pos, buf);
d = DELIM_NONE;
firstarg = 1;
mayopen = 1;
for (cnt = scope = 0;; ) {
la = *pos;
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
/*
* At the end of a macro line,
* opening delimiters do not suppress spacing.
*/
if (ac == ARGS_EOLN) {
if (d == DELIM_OPEN)
mdoc->last->flags &= ~MDOC_DELIMO;
break;
}
/*
* The rest of the macro line is only punctuation,
* to be handled by append_delims().
* If there were no other arguments,
* do not allow the first one to suppress spacing,
* even if it turns out to be a closing one.
*/
if (ac == ARGS_PUNCT) {
if (cnt == 0 && (nc == 0 || tok == MDOC_An))
mdoc->flags |= MDOC_NODELIMC;
break;
}
ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
TOKEN_NONE : lookup(mdoc, tok, line, la, 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 (ntok != TOKEN_NONE) {
if (scope)
rew_elem(mdoc, tok);
if (nc && ! cnt) {
mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
rew_last(mdoc, mdoc->last);
} else if ( ! nc && ! cnt) {
mdoc_argv_free(arg);
mandoc_msg(MANDOCERR_MACRO_EMPTY,
mdoc->parse, line, ppos,
mdoc_macronames[tok]);
}
mdoc_macro(mdoc, ntok, line, la, pos, buf);
if (nl)
append_delims(mdoc, line, pos, buf);
return;
}
/*
* Non-quote-enclosed punctuation. Set up our scope, if
* a word; rewind the scope, if a delimiter; then append
* the word.
*/
d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
if (DELIM_NONE != d) {
/*
* If we encounter closing punctuation, no word
* has been emitted, no scope is open, and we're
* allowed to have an empty element, then start
* a new scope.
*/
if ((d == DELIM_CLOSE ||
(d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
!cnt && !scope && nc && mayopen) {
mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
scope = 1;
cnt++;
if (tok == MDOC_Nm)
mayopen = 0;
}
/*
* Close out our scope, if one is open, before
* any punctuation.
*/
if (scope)
rew_elem(mdoc, tok);
scope = 0;
if (tok == MDOC_Fn)
mayopen = 0;
} else if (mayopen && !scope) {
mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
scope = 1;
cnt++;
}
dword(mdoc, line, la, p, d,
MDOC_JOIN & mdoc_macros[tok].flags);
/*
* If the first argument is a closing delimiter,
* do not suppress spacing before it.
*/
if (firstarg && d == DELIM_CLOSE && !nc)
mdoc->last->flags &= ~MDOC_DELIMC;
firstarg = 0;
/*
* `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 (scope && tok == MDOC_Fl) {
rew_elem(mdoc, tok);
scope = 0;
}
}
if (scope)
rew_elem(mdoc, tok);
/*
* 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 ( ! cnt) {
if (nc) {
mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
rew_last(mdoc, mdoc->last);
} else {
mdoc_argv_free(arg);
mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
line, ppos, mdoc_macronames[tok]);
}
}
if (nl)
append_delims(mdoc, line, pos, buf);
}
static void
in_line_argn(MACRO_PROT_ARGS)
{
struct mdoc_arg *arg;
char *p;
enum margserr ac;
int ntok;
int state; /* arg#; -1: not yet open; -2: closed */
int la, maxargs, nl;
nl = mdoc->flags & MDOC_NEWLINE;
/*
* A line macro that has a fixed number of arguments (maxargs).
* Only open the scope once the first non-leading-punctuation is
* found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
* keep it open until the maximum number of arguments are
* exhausted.
*/
switch (tok) {
case MDOC_Ap:
case MDOC_Ns:
case MDOC_Ux:
maxargs = 0;
break;
case MDOC_Bx:
case MDOC_Es:
case MDOC_Xr:
maxargs = 2;
break;
default:
maxargs = 1;
break;
}
mdoc_argv(mdoc, line, tok, &arg, pos, buf);
state = -1;
p = NULL;
for (;;) {
la = *pos;
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
if (ac == ARGS_WORD && state == -1 &&
! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
mdoc_isdelim(p) == DELIM_OPEN) {
dword(mdoc, line, la, p, DELIM_OPEN, 0);
continue;
}
if (state == -1 && tok != MDOC_In &&
tok != MDOC_St && tok != MDOC_Xr) {
mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
state = 0;
}
if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
if (abs(state) < 2 && tok == MDOC_Pf)
mandoc_vmsg(MANDOCERR_PF_SKIP,
mdoc->parse, line, ppos, "Pf %s",
p == NULL ? "at eol" : p);
break;
}
if (state == maxargs) {
rew_elem(mdoc, tok);
state = -2;
}
ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
TOKEN_NONE : lookup(mdoc, tok, line, la, p);
if (ntok != TOKEN_NONE) {
if (state >= 0) {
rew_elem(mdoc, tok);
state = -2;
}
mdoc_macro(mdoc, ntok, line, la, pos, buf);
break;
}
if (ac == ARGS_QWORD ||
mdoc_macros[tok].flags & MDOC_IGNDELIM ||
mdoc_isdelim(p) == DELIM_NONE) {
if (state == -1) {
mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
state = 1;
} else if (state >= 0)
state++;
} else if (state >= 0) {
rew_elem(mdoc, tok);
state = -2;
}
dword(mdoc, line, la, p, DELIM_MAX,
MDOC_JOIN & mdoc_macros[tok].flags);
}
if (state == -1) {
mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
line, ppos, mdoc_macronames[tok]);
return;
}
if (state == 0 && tok == MDOC_Pf)
append_delims(mdoc, line, pos, buf);
if (state >= 0)
rew_elem(mdoc, tok);
if (nl)
append_delims(mdoc, line, pos, buf);
}
static int
in_line(MACRO_PROT_ARGS)
{
int la, scope, cnt, nc, nl;
enum margverr av;
enum mdoct ntok;
enum margserr ac;
enum mdelim d;
struct mdoc_arg *arg;
char *p;
nl = MDOC_NEWLINE & m->flags;
/*
* 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_Mt):
/* FALLTHROUGH */
case (MDOC_Nm):
/* FALLTHROUGH */
case (MDOC_Pa):
nc = 1;
break;
default:
nc = 0;
break;
}
for (arg = NULL;; ) {
la = *pos;
av = mdoc_argv(m, line, tok, &arg, pos, buf);
if (ARGV_WORD == av) {
*pos = la;
break;
}
if (ARGV_EOLN == av)
break;
if (ARGV_ARG == av)
continue;
mdoc_argv_free(arg);
return(0);
}
for (cnt = scope = 0;; ) {
la = *pos;
ac = mdoc_args(m, line, pos, buf, tok, &p);
if (ARGS_ERROR == ac)
return(0);
if (ARGS_EOLN == ac)
break;
if (ARGS_PUNCT == ac)
break;
ntok = ARGS_QWORD == ac ? 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 != ntok) {
if (scope && ! 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);
mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
}
if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
return(0);
if ( ! nl)
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 = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
if (DELIM_NONE != d) {
/*
* If we encounter closing punctuation, no word
* has been omitted, no scope is open, and we're
* allowed to have an empty element, then start
* a new scope. `Ar', `Fl', and `Li', only do
* this once per invocation. There may be more
* of these (all of them?).
*/
if (0 == cnt && (nc || MDOC_Li == tok) &&
DELIM_CLOSE == d && ! scope) {
if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
return(0);
if (MDOC_Ar == tok || MDOC_Li == tok ||
MDOC_Fl == tok)
cnt++;
scope = 1;
}
/*
* Close out our scope, if one is open, before
* any punctuation.
*/
if (scope && ! rew_elem(m, tok))
return(0);
scope = 0;
} else if ( ! scope) {
if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
return(0);
scope = 1;
}
if (DELIM_NONE == d)
cnt++;
if ( ! dword(m, line, la, p, d))
return(0);
/*
* `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 (scope && MDOC_Fl == tok) {
if ( ! rew_elem(m, tok))
return(0);
scope = 0;
}
}
if (scope && ! 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);
mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
}
if ( ! nl)
return(1);
return(append_delims(m, line, pos, buf));
}
/*
* Parse free-form text, that is, a line that does not begin with the
* control character.
*/
static int
mdoc_ptext(struct mdoc *m, int line, char *buf, int offs)
{
char *c, *ws, *end;
struct mdoc_node *n;
/* Ignore bogus comments. */
if ('\\' == buf[offs] &&
'.' == buf[offs + 1] &&
'"' == buf[offs + 2]) {
mdoc_pmsg(m, line, offs, MANDOCERR_BADCOMMENT);
return(1);
}
/* No text before an initial macro. */
if (SEC_NONE == m->lastnamed) {
mdoc_pmsg(m, line, offs, MANDOCERR_NOTEXT);
return(1);
}
assert(m->last);
n = m->last;
/*
* Divert directly to list processing if we're encountering a
* columnar MDOC_BLOCK with or without a prior MDOC_BLOCK entry
* (a MDOC_BODY means it's already open, in which case we should
* process within its context in the normal way).
*/
if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&
LIST_column == n->norm->Bl.type) {
/* `Bl' is open without any children. */
m->flags |= MDOC_FREECOL;
return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));
}
if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&
NULL != n->parent &&
MDOC_Bl == n->parent->tok &&
LIST_column == n->parent->norm->Bl.type) {
/* `Bl' has block-level `It' children. */
m->flags |= MDOC_FREECOL;
return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));
}
/*
* Search for the beginning of unescaped trailing whitespace (ws)
* and for the first character not to be output (end).
*/
/* FIXME: replace with strcspn(). */
ws = NULL;
for (c = end = buf + offs; *c; c++) {
switch (*c) {
case '-':
if (mandoc_hyph(buf + offs, c))
*c = ASCII_HYPH;
ws = NULL;
break;
case ' ':
if (NULL == ws)
ws = c;
continue;
case '\t':
/*
* Always warn about trailing tabs,
* even outside literal context,
* where they should be put on the next line.
*/
if (NULL == ws)
ws = c;
/*
* Strip trailing tabs in literal context only;
* outside, they affect the next line.
*/
if (MDOC_LITERAL & m->flags)
continue;
break;
case '\\':
/* Skip the escaped character, too, if any. */
if (c[1])
c++;
/* FALLTHROUGH */
default:
ws = NULL;
break;
}
end = c + 1;
}
*end = '\0';
if (ws)
mdoc_pmsg(m, line, (int)(ws-buf), MANDOCERR_EOLNSPACE);
if ('\0' == buf[offs] && ! (MDOC_LITERAL & m->flags)) {
mdoc_pmsg(m, line, (int)(c-buf), MANDOCERR_NOBLANKLN);
/*
* Insert a `sp' in the case of a blank line. Technically,
* blank lines aren't allowed, but enough manuals assume this
* behaviour that we want to work around it.
*/
if ( ! mdoc_elem_alloc(m, line, offs, MDOC_sp, NULL))
return(0);
m->next = MDOC_NEXT_SIBLING;
return(1);
}
if ( ! mdoc_word_alloc(m, line, offs, buf+offs))
return(0);
if (MDOC_LITERAL & m->flags)
return(1);
/*
* End-of-sentence check. If the last character is an unescaped
* EOS character, then flag the node as being the end of a
* sentence. The front-end will know how to interpret this.
*/
assert(buf < end);
if (mandoc_eos(buf+offs, (size_t)(end-buf-offs), 0))
m->last->flags |= MDOC_EOS;
return(1);
}
static int
in_line_eoln(MACRO_PROT_ARGS)
{
int la;
enum margserr ac;
enum margverr av;
struct mdoc_arg *arg;
char *p;
enum mdoct ntok;
assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
if (tok == MDOC_Pp)
rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
/* Parse macro arguments. */
for (arg = NULL; ; ) {
la = *pos;
av = mdoc_argv(m, line, tok, &arg, pos, buf);
if (ARGV_WORD == av) {
*pos = la;
break;
}
if (ARGV_EOLN == av)
break;
if (ARGV_ARG == av)
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;
ac = mdoc_args(m, line, pos, buf, tok, &p);
if (ARGS_ERROR == ac)
return(0);
if (ARGS_EOLN == ac)
break;
ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
if (MDOC_MAX == ntok) {
if ( ! dword(m, line, la, p, DELIM_MAX))
return(0);
continue;
}
if ( ! rew_elem(m, tok))
return(0);
return(mdoc_macro(m, ntok, line, la, pos, buf));
}
/* Close out (no delimiters). */
return(rew_elem(m, tok));
}
/* ARGSUSED */
static int
in_line_argn(MACRO_PROT_ARGS)
{
int la, flushed, j, maxargs, nl;
enum margserr ac;
enum margverr av;
struct mdoc_arg *arg;
char *p;
enum mdoct ntok;
nl = MDOC_NEWLINE & m->flags;
/*
* A line macro that has a fixed number of arguments (maxargs).
* Only open the scope once the first non-leading-punctuation is
* found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
* keep it open until the maximum number of arguments are
* exhausted.
*/
switch (tok) {
case (MDOC_Ap):
/* FALLTHROUGH */
case (MDOC_No):
/* FALLTHROUGH */
case (MDOC_Ns):
/* FALLTHROUGH */
case (MDOC_Ux):
maxargs = 0;
break;
case (MDOC_Bx):
/* FALLTHROUGH */
case (MDOC_Xr):
maxargs = 2;
break;
default:
maxargs = 1;
break;
}
for (arg = NULL; ; ) {
la = *pos;
av = mdoc_argv(m, line, tok, &arg, pos, buf);
if (ARGV_WORD == av) {
*pos = la;
break;
}
if (ARGV_EOLN == av)
break;
if (ARGV_ARG == av)
continue;
mdoc_argv_free(arg);
return(0);
}
for (flushed = j = 0; ; ) {
la = *pos;
ac = mdoc_args(m, line, pos, buf, tok, &p);
if (ARGS_ERROR == ac)
return(0);
if (ARGS_PUNCT == ac)
break;
if (ARGS_EOLN == ac)
break;
if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
ARGS_QWORD != ac && 0 == j &&
DELIM_OPEN == mdoc_isdelim(p)) {
if ( ! dword(m, line, la, p, DELIM_OPEN))
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;
}
ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
if (MDOC_MAX != ntok) {
if ( ! flushed && ! rew_elem(m, tok))
return(0);
flushed = 1;
if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
return(0);
j++;
break;
}
if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
ARGS_QWORD != ac &&
! flushed &&
DELIM_NONE != mdoc_isdelim(p)) {
if ( ! rew_elem(m, tok))
return(0);
flushed = 1;
}
if ( ! dword(m, line, la, p, DELIM_MAX))
return(0);
j++;
}
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 ( ! nl)
return(1);
return(append_delims(m, line, pos, buf));
}
static void
blk_full(MACRO_PROT_ARGS)
{
int la, nl, parsed;
struct mdoc_arg *arg;
struct mdoc_node *blk; /* Our own or a broken block. */
struct mdoc_node *head; /* Our own head. */
struct mdoc_node *body; /* Our own body. */
struct mdoc_node *n;
enum margserr ac, lac;
char *p;
nl = MDOC_NEWLINE & mdoc->flags;
if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
line, ppos, mdoc_macronames[tok]);
return;
}
if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
/* Here, tok is one of Sh Ss Nm Nd It. */
blk = NULL;
for (n = mdoc->last; n != NULL; n = n->parent) {
if (n->flags & MDOC_ENDED) {
if ( ! (n->flags & MDOC_VALID))
n->flags |= MDOC_BROKEN;
continue;
}
if (n->type != MDOC_BLOCK)
continue;
if (tok == MDOC_It && n->tok == MDOC_Bl) {
if (blk != NULL) {
mandoc_vmsg(MANDOCERR_BLK_BROKEN,
mdoc->parse, line, ppos,
"It breaks %s",
mdoc_macronames[blk->tok]);
rew_pending(mdoc, blk);
}
break;
}
if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
switch (tok) {
case MDOC_Sh:
/* FALLTHROUGH */
case MDOC_Ss:
mandoc_vmsg(MANDOCERR_BLK_BROKEN,
mdoc->parse, line, ppos,
"%s breaks %s",
mdoc_macronames[tok],
mdoc_macronames[n->tok]);
rew_pending(mdoc, n);
n = mdoc->last;
continue;
case MDOC_It:
/* Delay in case it's astray. */
blk = n;
continue;
default:
break;
}
break;
}
/* Here, n is one of Sh Ss Nm Nd It. */
if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
(tok != MDOC_Ss && (n->tok == MDOC_Ss ||
(tok != MDOC_It && n->tok == MDOC_It)))))
break;
/* Item breaking an explicit block. */
if (blk != NULL) {
mandoc_vmsg(MANDOCERR_BLK_BROKEN,
mdoc->parse, line, ppos,
"It breaks %s",
mdoc_macronames[blk->tok]);
rew_pending(mdoc, blk);
blk = NULL;
}
/* Close out prior implicit scopes. */
rew_last(mdoc, n);
}
/* Skip items outside lists. */
if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
line, ppos, "It %s", buf + *pos);
mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
rew_elem(mdoc, MDOC_br);
return;
}
}
/*
* This routine accommodates 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.
*/
mdoc_argv(mdoc, line, tok, &arg, pos, buf);
blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
head = body = NULL;
/*
* Exception: Heads of `It' macros in `-diag' lists are not
* parsed, even though `It' macros in general are parsed.
*/
parsed = tok != MDOC_It ||
mdoc->last->parent->tok != MDOC_Bl ||
mdoc->last->parent->norm->Bl.type != LIST_diag;
/*
* The `Nd' macro has all arguments in its body: it's a hybrid
* of block partial-explicit and full-implicit. Stupid.
*/
if (tok == MDOC_Nd) {
head = mdoc_head_alloc(mdoc, line, ppos, tok);
rew_last(mdoc, head);
body = mdoc_body_alloc(mdoc, line, ppos, tok);
}
if (tok == MDOC_Bk)
mdoc->flags |= MDOC_KEEP;
ac = ARGS_PEND;
for (;;) {
la = *pos;
lac = ac;
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
if (ac == ARGS_EOLN) {
if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
break;
/*
* This is necessary: if the last token on a
* line is a `Ta' or tab, then we'll get
* ARGS_EOLN, so we must be smart enough to
* reopen our scope if the last parse was a
* phrase or partial phrase.
*/
if (body != NULL)
rew_last(mdoc, body);
body = mdoc_body_alloc(mdoc, line, ppos, tok);
break;
}
if (tok == MDOC_Bd || tok == MDOC_Bk) {
mandoc_vmsg(MANDOCERR_ARG_EXCESS,
mdoc->parse, line, la, "%s ... %s",
mdoc_macronames[tok], buf + la);
break;
}
if (tok == MDOC_Rs) {
mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
line, la, "Rs %s", buf + la);
break;
}
if (ac == ARGS_PUNCT)
break;
/*
* Emit leading punctuation (i.e., punctuation before
* the MDOC_HEAD) for non-phrase types.
*/
if (head == NULL &&
ac != ARGS_PEND &&
ac != ARGS_PHRASE &&
ac != ARGS_PPHRASE &&
ac != ARGS_QWORD &&
mdoc_isdelim(p) == DELIM_OPEN) {
dword(mdoc, line, la, p, DELIM_OPEN, 0);
continue;
}
/* Open a head if one hasn't been opened. */
if (head == NULL)
head = mdoc_head_alloc(mdoc, line, ppos, tok);
if (ac == ARGS_PHRASE ||
ac == ARGS_PEND ||
ac == ARGS_PPHRASE) {
/*
* If we haven't opened a body yet, rewind the
* head; if we have, rewind that instead.
*/
rew_last(mdoc, body == NULL ? head : body);
body = mdoc_body_alloc(mdoc, line, ppos, tok);
/*
* Process phrases: set whether we're in a
* partial-phrase (this effects line handling)
* then call down into the phrase parser.
*/
if (ac == ARGS_PPHRASE)
mdoc->flags |= MDOC_PPHRASE;
if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
mdoc->flags |= MDOC_PPHRASE;
parse_rest(mdoc, MDOC_MAX, line, &la, buf);
mdoc->flags &= ~MDOC_PPHRASE;
continue;
}
if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
break;
}
if (blk->flags & MDOC_VALID)
return;
if (head == NULL)
head = mdoc_head_alloc(mdoc, line, ppos, tok);
if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
append_delims(mdoc, line, pos, buf);
if (body != NULL)
goto out;
/*
* 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_pending() call closing out that
* sub-block.
*/
for (n = mdoc->last; n && n != head; n = n->parent) {
if (n->flags & MDOC_ENDED) {
if ( ! (n->flags & MDOC_VALID))
n->flags |= MDOC_BROKEN;
continue;
}
if (n->type == MDOC_BLOCK &&
mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
n->flags = MDOC_BROKEN;
head->flags = MDOC_ENDED;
}
}
if (head->flags & MDOC_ENDED)
return;
/* Close out scopes to remain in a consistent state. */
rew_last(mdoc, head);
body = mdoc_body_alloc(mdoc, line, ppos, tok);
out:
if (mdoc->flags & MDOC_FREECOL) {
rew_last(mdoc, body);
rew_last(mdoc, blk);
mdoc->flags &= ~MDOC_FREECOL;
}
}
/*
* Close out block partial/full explicit.
*/
static void
blk_exp_close(MACRO_PROT_ARGS)
{
struct mdoc_node *body; /* Our own body. */
struct mdoc_node *endbody; /* Our own end marker. */
struct mdoc_node *itblk; /* An It block starting later. */
struct mdoc_node *later; /* A sub-block starting later. */
struct mdoc_node *n; /* Search back to our block. */
int j, lastarg, maxargs, nl;
enum margserr ac;
enum mdoct atok, ntok;
char *p;
nl = MDOC_NEWLINE & mdoc->flags;
switch (tok) {
case MDOC_Ec:
maxargs = 1;
break;
case MDOC_Ek:
mdoc->flags &= ~MDOC_KEEP;
/* FALLTHROUGH */
default:
maxargs = 0;
break;
}
/*
* Search backwards for beginnings of blocks,
* both of our own and of pending sub-blocks.
*/
atok = rew_alt(tok);
body = endbody = itblk = later = NULL;
for (n = mdoc->last; n; n = n->parent) {
if (n->flags & MDOC_ENDED) {
if ( ! (n->flags & MDOC_VALID))
n->flags |= MDOC_BROKEN;
continue;
}
/* Remember the start of our own body. */
if (n->type == MDOC_BODY && atok == n->tok) {
if (n->end == ENDBODY_NOT)
body = n;
continue;
}
if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
continue;
if (n->tok == MDOC_It) {
itblk = n;
continue;
}
if (atok == n->tok) {
assert(body);
/*
* Found the start of our own block.
* When there is no pending sub block,
* just proceed to closing out.
*/
if (later == NULL ||
(tok == MDOC_El && itblk == NULL))
break;
/*
* When there is a pending sub block, postpone
* closing out the current block until the
* rew_pending() closing out the sub-block.
* Mark the place where the formatting - but not
* the scope - of the current block ends.
*/
mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
line, ppos, "%s breaks %s",
mdoc_macronames[atok],
mdoc_macronames[later->tok]);
endbody = mdoc_endbody_alloc(mdoc, line, ppos,
atok, body, ENDBODY_SPACE);
if (tok == MDOC_El)
itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
/*
* If a block closing macro taking arguments
* breaks another block, put the arguments
* into the end marker.
*/
if (maxargs)
mdoc->next = MDOC_NEXT_CHILD;
break;
}
/* Explicit blocks close out description lines. */
if (n->tok == MDOC_Nd) {
rew_last(mdoc, n);
continue;
}
/* Breaking an open sub block. */
n->flags |= MDOC_BROKEN;
if (later == NULL)
later = n;
}
if (body == NULL) {
mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
line, ppos, mdoc_macronames[tok]);
if (maxargs && endbody == NULL) {
/*
* Stray .Ec without previous .Eo:
* Break the output line, keep the arguments.
*/
mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
rew_elem(mdoc, MDOC_br);
}
} else if (endbody == NULL) {
rew_last(mdoc, body);
if (maxargs)
mdoc_tail_alloc(mdoc, line, ppos, atok);
}
if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
if (buf[*pos] != '\0')
mandoc_vmsg(MANDOCERR_ARG_SKIP,
mdoc->parse, line, ppos,
"%s %s", mdoc_macronames[tok],
buf + *pos);
if (endbody == NULL && n != NULL)
rew_pending(mdoc, n);
return;
}
if (endbody != NULL)
n = endbody;
for (j = 0; ; j++) {
lastarg = *pos;
if (j == maxargs && n != NULL) {
rew_pending(mdoc, n);
n = NULL;
}
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
break;
ntok = ac == ARGS_QWORD ? MDOC_MAX :
lookup(mdoc, tok, line, lastarg, p);
if (ntok == MDOC_MAX) {
dword(mdoc, line, lastarg, p, DELIM_MAX,
MDOC_JOIN & mdoc_macros[tok].flags);
continue;
}
if (n != NULL) {
rew_pending(mdoc, n);
n = NULL;
}
mdoc->flags &= ~MDOC_NEWLINE;
mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
break;
}
if (n != NULL)
rew_pending(mdoc, n);
if (nl)
append_delims(mdoc, line, pos, buf);
}
/* ARGSUSED */
static int
in_line_argn(MACRO_PROT_ARGS)
{
int la, flushed, j, maxargs, nl;
enum margserr ac;
enum margverr av;
struct mdoc_arg *arg;
char *p;
enum mdoct ntok;
nl = MDOC_NEWLINE & m->flags;
/*
* A line macro that has a fixed number of arguments (maxargs).
* Only open the scope once the first non-leading-punctuation is
* found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
* keep it open until the maximum number of arguments are
* exhausted.
*/
switch (tok) {
case (MDOC_Ap):
/* FALLTHROUGH */
case (MDOC_No):
/* FALLTHROUGH */
case (MDOC_Ns):
/* FALLTHROUGH */
case (MDOC_Ux):
maxargs = 0;
break;
case (MDOC_Xr):
maxargs = 2;
break;
default:
maxargs = 1;
break;
}
for (arg = NULL; ; ) {
la = *pos;
av = mdoc_argv(m, line, tok, &arg, pos, buf);
if (ARGV_WORD == av) {
*pos = la;
break;
}
if (ARGV_EOLN == av)
break;
if (ARGV_ARG == av)
continue;
mdoc_argv_free(arg);
return(0);
}
for (flushed = j = 0; ; ) {
la = *pos;
ac = mdoc_args(m, line, pos, buf, tok, &p);
if (ARGS_ERROR == ac)
return(0);
if (ARGS_PUNCT == ac)
break;
if (ARGS_EOLN == ac)
break;
if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
ARGS_QWORD != ac &&
0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
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;
}
ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
if (MDOC_MAX != ntok) {
if ( ! flushed && ! rew_elem(m, tok))
return(0);
flushed = 1;
if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
return(0);
j++;
break;
}
if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
ARGS_QWORD != ac &&
! flushed &&
DELIM_NONE != mdoc_isdelim(p)) {
if ( ! rew_elem(m, tok))
return(0);
flushed = 1;
}
/*
* 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);
j++;
}
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 ( ! nl)
return(1);
return(append_delims(m, line, pos, buf));
}