/* ARGSUSED */
int
blk_imp(MACRO_PROT_ARGS)
{
int la;
char *p;
struct man_node *n;
/* Close out prior scopes. */
if ( ! rew_scope(MAN_BODY, man, tok))
return(0);
if ( ! rew_scope(MAN_BLOCK, man, tok))
return(0);
/* Allocate new block & head scope. */
if ( ! man_block_alloc(man, line, ppos, tok))
return(0);
if ( ! man_head_alloc(man, line, ppos, tok))
return(0);
n = man->last;
/* Add line arguments. */
for (;;) {
la = *pos;
if ( ! man_args(man, line, pos, buf, &p))
break;
if ( ! man_word_alloc(man, line, la, p))
return(0);
}
/* Close out head and open body (unless MAN_SCOPE). */
if (MAN_SCOPED & man_macros[tok].flags) {
/* If we're forcing scope (`TP'), keep it open. */
if (MAN_FSCOPED & man_macros[tok].flags) {
man->flags |= MAN_BLINE;
return(1);
} else if (n == man->last) {
man->flags |= MAN_BLINE;
return(1);
}
}
if ( ! rew_scope(MAN_HEAD, man, tok))
return(0);
return(man_body_alloc(man, line, ppos, tok));
}
/* ARGSUSED */
int
blk_exp(MACRO_PROT_ARGS)
{
struct man_node *n;
int la;
char *p;
/* Close out prior implicit scopes. */
if ( ! rew_scope(MAN_BLOCK, man, tok))
return(0);
if ( ! man_block_alloc(man, line, ppos, tok))
return(0);
if ( ! man_head_alloc(man, line, ppos, tok))
return(0);
for (;;) {
la = *pos;
if ( ! man_args(man, line, pos, buf, &p))
break;
if ( ! man_word_alloc(man, line, la, p))
return(0);
}
assert(man);
assert(tok != MAN_MAX);
for (n = man->last; n; n = n->parent) {
if (n->tok != tok)
continue;
assert(MAN_HEAD == n->type);
man_unscope(man, n, MANDOCERR_MAX);
break;
}
return(man_body_alloc(man, line, ppos, tok));
}
static int
man_descope(struct man *man, int line, int offs)
{
/*
* Co-ordinate what happens with having a next-line scope open:
* first close out the element scope (if applicable), then close
* out the block scope (also if applicable).
*/
if (MAN_ELINE & man->flags) {
man->flags &= ~MAN_ELINE;
if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
return(0);
}
if ( ! (MAN_BLINE & man->flags))
return(1);
man->flags &= ~MAN_BLINE;
if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
return(0);
return(man_body_alloc(man, line, offs, man->last->tok));
}
/* ARGSUSED */
int
blk_exp(MACRO_PROT_ARGS)
{
int la;
char *p;
/*
* Close out prior scopes. "Regular" explicit macros cannot be
* nested, but we allow roff macros to be placed just about
* anywhere.
*/
if ( ! rew_scope(MAN_BODY, m, tok))
return(0);
if ( ! rew_scope(MAN_BLOCK, m, tok))
return(0);
if ( ! man_block_alloc(m, line, ppos, tok))
return(0);
if ( ! man_head_alloc(m, line, ppos, tok))
return(0);
for (;;) {
la = *pos;
if ( ! man_args(m, line, pos, buf, &p))
break;
if ( ! man_word_alloc(m, line, la, p))
return(0);
}
assert(m);
assert(tok != MAN_MAX);
if ( ! rew_scope(MAN_HEAD, m, tok))
return(0);
return(man_body_alloc(m, line, ppos, tok));
}
static int
man_pmacro(struct man *man, int ln, char *buf, int offs)
{
int i, ppos;
enum mant tok;
char mac[5];
struct man_node *n;
if ('"' == buf[offs]) {
man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
return(1);
} else if ('\0' == buf[offs])
return(1);
ppos = offs;
/*
* Copy the first word into a nil-terminated buffer.
* Stop copying when a tab, space, or eoln is encountered.
*/
i = 0;
while (i < 4 && '\0' != buf[offs] &&
' ' != buf[offs] && '\t' != buf[offs])
mac[i++] = buf[offs++];
mac[i] = '\0';
tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
if (MAN_MAX == tok) {
mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln,
ppos, "%s", buf + ppos - 1);
return(1);
}
/* The macro is sane. Jump to the next word. */
while (buf[offs] && ' ' == buf[offs])
offs++;
/*
* Trailing whitespace. Note that tabs are allowed to be passed
* into the parser as "text", so we only warn about spaces here.
*/
if ('\0' == buf[offs] && ' ' == buf[offs - 1])
man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
/*
* Remove prior ELINE macro, as it's being clobbered by a new
* macro. Note that NSCOPED macros do not close out ELINE
* macros---they don't print text---so we let those slip by.
*/
if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
man->flags & MAN_ELINE) {
n = man->last;
assert(MAN_TEXT != n->type);
/* Remove repeated NSCOPED macros causing ELINE. */
if (MAN_NSCOPED & man_macros[n->tok].flags)
n = n->parent;
mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
n->pos, "%s breaks %s", man_macronames[tok],
man_macronames[n->tok]);
man_node_delete(man, n);
man->flags &= ~MAN_ELINE;
}
/*
* Remove prior BLINE macro that is being clobbered.
*/
if ((man->flags & MAN_BLINE) &&
(MAN_BSCOPE & man_macros[tok].flags)) {
n = man->last;
/* Might be a text node like 8 in
* .TP 8
* .SH foo
*/
if (MAN_TEXT == n->type)
n = n->parent;
/* Remove element that didn't end BLINE, if any. */
if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
n = n->parent;
assert(MAN_HEAD == n->type);
n = n->parent;
assert(MAN_BLOCK == n->type);
assert(MAN_SCOPED & man_macros[n->tok].flags);
mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
n->pos, "%s breaks %s", man_macronames[tok],
man_macronames[n->tok]);
man_node_delete(man, n);
man->flags &= ~MAN_BLINE;
}
/*
* Save the fact that we're in the next-line for a block. In
* this way, embedded roff instructions can "remember" state
* when they exit.
*/
if (MAN_BLINE & man->flags)
man->flags |= MAN_BPLINE;
/* Call to handler... */
assert(man_macros[tok].fp);
if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
goto err;
/*
* We weren't in a block-line scope when entering the
* above-parsed macro, so return.
*/
if ( ! (MAN_BPLINE & man->flags)) {
man->flags &= ~MAN_ILINE;
return(1);
}
man->flags &= ~MAN_BPLINE;
/*
* If we're in a block scope, then allow this macro to slip by
* without closing scope around it.
*/
if (MAN_ILINE & man->flags) {
man->flags &= ~MAN_ILINE;
return(1);
}
/*
* If we've opened a new next-line element scope, then return
* now, as the next line will close out the block scope.
*/
if (MAN_ELINE & man->flags)
return(1);
/* Close out the block scope opened in the prior line. */
assert(MAN_BLINE & man->flags);
man->flags &= ~MAN_BLINE;
if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
return(0);
return(man_body_alloc(man, ln, ppos, man->last->tok));
err: /* Error out. */
man->flags |= MAN_HALT;
return(0);
}
static int
man_pmacro(struct man *man, int ln, char *buf, int offs)
{
char mac[5];
struct man_node *n;
enum mant tok;
int i, ppos;
int bline;
if ('"' == buf[offs]) {
mandoc_msg(MANDOCERR_COMMENT_BAD, man->parse,
ln, offs, NULL);
return(1);
} else if ('\0' == buf[offs])
return(1);
ppos = offs;
/*
* Copy the first word into a nil-terminated buffer.
* Stop copying when a tab, space, or eoln is encountered.
*/
i = 0;
while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
'\t' != buf[offs])
mac[i++] = buf[offs++];
mac[i] = '\0';
tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
if (MAN_MAX == tok) {
mandoc_msg(MANDOCERR_MACRO, man->parse,
ln, ppos, buf + ppos - 1);
return(1);
}
/* The macro is sane. Jump to the next word. */
while (buf[offs] && ' ' == buf[offs])
offs++;
/*
* Trailing whitespace. Note that tabs are allowed to be passed
* into the parser as "text", so we only warn about spaces here.
*/
if ('\0' == buf[offs] && ' ' == buf[offs - 1])
mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
ln, offs - 1, NULL);
/*
* Remove prior ELINE macro, as it's being clobbered by a new
* macro. Note that NSCOPED macros do not close out ELINE
* macros---they don't print text---so we let those slip by.
*/
if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
man->flags & MAN_ELINE) {
n = man->last;
assert(MAN_TEXT != n->type);
/* Remove repeated NSCOPED macros causing ELINE. */
if (MAN_NSCOPED & man_macros[n->tok].flags)
n = n->parent;
mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
n->pos, "%s breaks %s", man_macronames[tok],
man_macronames[n->tok]);
man_node_delete(man, n);
man->flags &= ~MAN_ELINE;
}
/*
* Remove prior BLINE macro that is being clobbered.
*/
if ((man->flags & MAN_BLINE) &&
(MAN_BSCOPE & man_macros[tok].flags)) {
n = man->last;
/* Might be a text node like 8 in
* .TP 8
* .SH foo
*/
if (MAN_TEXT == n->type)
n = n->parent;
/* Remove element that didn't end BLINE, if any. */
if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
n = n->parent;
assert(MAN_HEAD == n->type);
n = n->parent;
assert(MAN_BLOCK == n->type);
assert(MAN_SCOPED & man_macros[n->tok].flags);
mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
n->pos, "%s breaks %s", man_macronames[tok],
man_macronames[n->tok]);
man_node_delete(man, n);
man->flags &= ~MAN_BLINE;
}
/* Remember whether we are in next-line scope for a block head. */
bline = man->flags & MAN_BLINE;
/* Call to handler... */
assert(man_macros[tok].fp);
if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
return(0);
/* In quick mode (for mandocdb), abort after the NAME section. */
if (man->quick && MAN_SH == tok) {
n = man->last;
if (MAN_BODY == n->type &&
strcmp(n->prev->child->string, "NAME"))
return(2);
}
/*
* If we are in a next-line scope for a block head,
* close it out now and switch to the body,
* unless the next-line scope is allowed to continue.
*/
if ( ! bline || man->flags & MAN_ELINE ||
man_macros[tok].flags & MAN_NSCOPED)
return(1);
assert(MAN_BLINE & man->flags);
man->flags &= ~MAN_BLINE;
if ( ! man_unscope(man, man->last->parent))
return(0);
return(man_body_alloc(man, ln, ppos, man->last->tok));
}