enum rofferr
eqn_read(struct eqn_node **epp, int ln,
const char *p, int pos, int *offs)
{
size_t sz;
struct eqn_node *ep;
enum rofferr er;
ep = *epp;
/*
* If we're the terminating mark, unset our equation status and
* validate the full equation.
*/
if (0 == strncmp(p, ".EN", 3)) {
er = eqn_end(epp);
p += 3;
while (' ' == *p || '\t' == *p)
p++;
if ('\0' == *p)
return(er);
mandoc_vmsg(MANDOCERR_ARG_SKIP, ep->parse,
ln, pos, "EN %s", p);
return(er);
}
/*
* Build up the full string, replacing all newlines with regular
* whitespace.
*/
sz = strlen(p + pos) + 1;
ep->data = mandoc_realloc(ep->data, ep->sz + sz + 1);
/* First invocation: nil terminate the string. */
if (0 == ep->sz)
*ep->data = '\0';
ep->sz += sz;
strlcat(ep->data, p + pos, ep->sz + 1);
strlcat(ep->data, " ", ep->sz + 1);
return(ROFF_IGN);
}
void
roff_endparse(struct roff *r)
{
if (r->last)
mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse,
r->last->line, r->last->col, NULL);
if (r->eqn) {
mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse,
r->eqn->eqn.ln, r->eqn->eqn.pos, NULL);
eqn_end(&r->eqn);
}
if (r->tbl) {
mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse,
r->tbl->line, r->tbl->pos, NULL);
tbl_end(&r->tbl);
}
}
static int
roff_closeeqn(struct roff *r)
{
return(r->eqn && ROFF_EQN == eqn_end(&r->eqn) ? 1 : 0);
}
