static void
blk_part_exp(MACRO_PROT_ARGS)
{
int la, nl;
enum margserr ac;
struct roff_node *head; /* keep track of head */
char *p;
nl = MDOC_NEWLINE & mdoc->flags;
/*
* 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.
*/
roff_block_alloc(mdoc, line, ppos, tok);
head = NULL;
for (;;) {
la = *pos;
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
break;
/* Flush out leading punctuation. */
if (head == NULL && ac != ARGS_QWORD &&
mdoc_isdelim(p) == DELIM_OPEN) {
dword(mdoc, line, la, p, DELIM_OPEN, 0);
continue;
}
if (head == NULL) {
head = roff_head_alloc(mdoc, line, ppos, tok);
if (tok == MDOC_Eo) /* Not parsed. */
dword(mdoc, line, la, p, DELIM_MAX, 0);
rew_last(mdoc, head);
roff_body_alloc(mdoc, line, ppos, tok);
if (tok == MDOC_Eo)
continue;
}
if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
break;
}
/* Clean-up to leave in a consistent state. */
if (head == NULL) {
rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
roff_body_alloc(mdoc, line, ppos, tok);
}
if (nl)
append_delims(mdoc, line, pos, buf);
}
/*
* The simplest argument parser available: Parse the remaining
* words until the end of the phrase or line and return 0
* or until the next macro, call that macro, and return 1.
*/
static int
parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
{
int la;
for (;;) {
la = *pos;
if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
return 0;
if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
return 1;
}
}
/*
* The simplest argument parser available: Parse the remaining
* words until the end of the phrase or line and return 0
* or until the next macro, call that macro, and return 1.
*/
static int
parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
{
int la;
for (;;) {
la = *pos;
if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
return(0);
if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
return(1);
}
}
static void
blk_full(MACRO_PROT_ARGS)
{
int la, nl, parsed;
struct mdoc_arg *arg;
struct roff_node *blk; /* Our own or a broken block. */
struct roff_node *head; /* Our own head. */
struct roff_node *body; /* Our own body. */
struct roff_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 != ROFFT_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:
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);
roff_elem_alloc(mdoc, line, ppos, MDOC_br);
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 = roff_head_alloc(mdoc, line, ppos, tok);
rew_last(mdoc, head);
body = roff_body_alloc(mdoc, line, ppos, tok);
}
if (tok == MDOC_Bk)
mdoc->flags |= MDOC_KEEP;
ac = ARGS_EOLN;
for (;;) {
/*
* If we are right after a tab character,
* do not parse the first word for macros.
*/
if (mdoc->flags & MDOC_PHRASEQN) {
mdoc->flags &= ~MDOC_PHRASEQN;
mdoc->flags |= MDOC_PHRASEQF;
}
la = *pos;
lac = ac;
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
if (ac == ARGS_EOLN) {
if (lac != ARGS_PHRASE ||
! (mdoc->flags & MDOC_PHRASEQF))
break;
/*
* This line ends in a tab; start the next
* column now, with a leading blank.
*/
if (body != NULL)
rew_last(mdoc, body);
body = roff_body_alloc(mdoc, line, ppos, tok);
roff_word_alloc(mdoc, line, ppos, "\\&");
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 ROFFT_HEAD) for non-phrase types.
*/
if (head == NULL &&
ac != ARGS_PHRASE &&
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 = roff_head_alloc(mdoc, line, ppos, tok);
if (ac == ARGS_PHRASE) {
/*
* 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 = roff_body_alloc(mdoc, line, ppos, tok);
/* Process to the tab or to the end of the line. */
mdoc->flags |= MDOC_PHRASE;
parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
mdoc->flags &= ~MDOC_PHRASE;
/* There may have been `Ta' macros. */
while (body->next != NULL)
body = body->next;
continue;
}
if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
break;
}
if (blk->flags & MDOC_VALID)
return;
if (head == NULL)
head = roff_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 (find_pending(mdoc, tok, line, ppos, head))
return;
/* Close out scopes to remain in a consistent state. */
rew_last(mdoc, head);
body = roff_body_alloc(mdoc, line, ppos, tok);
out:
if (mdoc->flags & MDOC_FREECOL) {
rew_last(mdoc, body);
rew_last(mdoc, blk);
mdoc->flags &= ~MDOC_FREECOL;
}
}
static void
blk_part_imp(MACRO_PROT_ARGS)
{
int la, nl;
enum margserr ac;
char *p;
struct roff_node *blk; /* saved block context */
struct roff_node *body; /* saved body context */
struct roff_node *n;
nl = MDOC_NEWLINE & mdoc->flags;
/*
* A macro that spans to the end of the line. This is generally
* (but not necessarily) called as the first macro. The block
* 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.
*/
blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
/*
* Open the body scope "on-demand", that is, after we've
* processed all our the leading delimiters (open parenthesis,
* etc.).
*/
for (body = NULL; ; ) {
la = *pos;
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
break;
if (body == NULL && ac != ARGS_QWORD &&
mdoc_isdelim(p) == DELIM_OPEN) {
dword(mdoc, line, la, p, DELIM_OPEN, 0);
continue;
}
if (body == NULL)
body = roff_body_alloc(mdoc, line, ppos, tok);
if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
break;
}
if (body == NULL)
body = roff_body_alloc(mdoc, line, ppos, tok);
if (find_pending(mdoc, tok, line, ppos, body))
return;
rew_last(mdoc, body);
if (nl)
append_delims(mdoc, line, pos, buf);
rew_pending(mdoc, blk);
/* Move trailing .Ns out of scope. */
for (n = body->child; n && n->next; n = n->next)
/* Do nothing. */ ;
if (n && n->tok == MDOC_Ns)
mdoc_node_relink(mdoc, n);
}
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;
}
}
static void
blk_part_imp(MACRO_PROT_ARGS)
{
int la, nl;
enum margserr ac;
char *p;
struct mdoc_node *blk; /* saved block context */
struct mdoc_node *body; /* saved body context */
struct mdoc_node *n;
nl = MDOC_NEWLINE & mdoc->flags;
/*
* A macro that spans to the end of the line. This is generally
* (but not necessarily) called as the first macro. The block
* 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.
*/
blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
/*
* Open the body scope "on-demand", that is, after we've
* processed all our the leading delimiters (open parenthesis,
* etc.).
*/
for (body = NULL; ; ) {
la = *pos;
ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
break;
if (body == NULL && ac != ARGS_QWORD &&
mdoc_isdelim(p) == DELIM_OPEN) {
dword(mdoc, line, la, p, DELIM_OPEN, 0);
continue;
}
if (body == NULL)
body = mdoc_body_alloc(mdoc, line, ppos, tok);
if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
break;
}
if (body == NULL)
body = mdoc_body_alloc(mdoc, line, ppos, tok);
/*
* If there is an open sub-block requiring explicit close-out,
* postpone closing out the current block until the
* rew_pending() call closing out the sub-block.
*/
for (n = mdoc->last; n && n != body && n != blk->parent;
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;
if ( ! (body->flags & MDOC_ENDED)) {
mandoc_vmsg(MANDOCERR_BLK_NEST,
mdoc->parse, line, ppos,
"%s breaks %s", mdoc_macronames[tok],
mdoc_macronames[n->tok]);
mdoc_endbody_alloc(mdoc, line, ppos,
tok, body, ENDBODY_NOSPACE);
}
}
}
assert(n == body);
if (body->flags & MDOC_ENDED)
return;
rew_last(mdoc, body);
if (nl)
append_delims(mdoc, line, pos, buf);
rew_pending(mdoc, blk);
/* Move trailing .Ns out of scope. */
for (n = body->child; n && n->next; n = n->next)
/* Do nothing. */ ;
if (n && n->tok == MDOC_Ns)
mdoc_node_relink(mdoc, n);
}
