+
+static int
+post_ignpar(POST_ARGS)
+{
+ struct mdoc_node *np;
+
+ if (MDOC_BODY != mdoc->last->type)
+ return(1);
+
+ if (NULL != (np = mdoc->last->child))
+ if (MDOC_Pp == np->tok || MDOC_Lp == np->tok) {
+ mdoc_nmsg(mdoc, np, MANDOCERR_IGNPAR);
+ mdoc_node_delete(mdoc, np);
+ }
+
+ if (NULL != (np = mdoc->last->last))
+ if (MDOC_Pp == np->tok || MDOC_Lp == np->tok) {
+ mdoc_nmsg(mdoc, np, MANDOCERR_IGNPAR);
+ mdoc_node_delete(mdoc, np);
+ }
+
+ return(1);
+}
+
+static int
+pre_par(PRE_ARGS)
+{
+
+ if (NULL == mdoc->last)
+ return(1);
+ if (MDOC_ELEM != n->type && MDOC_BLOCK != n->type)
+ return(1);
+
+ /*
+ * Don't allow prior `Lp' or `Pp' prior to a paragraph-type
+ * block: `Lp', `Pp', or non-compact `Bd' or `Bl'.
+ */
+
+ if (MDOC_Pp != mdoc->last->tok && MDOC_Lp != mdoc->last->tok)
+ return(1);
+ if (MDOC_Bl == n->tok && n->norm->d.Bl.comp)
+ return(1);
+ if (MDOC_Bd == n->tok && n->norm->d.Bd.comp)
+ return(1);
+ if (MDOC_It == n->tok && n->parent->norm->d.Bl.comp)
+ return(1);
+
+ mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNPAR);
+ mdoc_node_delete(mdoc, mdoc->last);
+ return(1);
+}
+
+static int
+pre_literal(PRE_ARGS)
+{
+
+ if (MDOC_BODY != n->type)
+ return(1);
+
+ /*
+ * The `Dl' (note "el" not "one") and `Bd -literal' and `Bd
+ * -unfilled' macros set MDOC_LITERAL on entrance to the body.
+ */
+
+ switch (n->tok) {
+ case (MDOC_Dl):
+ mdoc->flags |= MDOC_LITERAL;
+ break;
+ case (MDOC_Bd):
+ if (DISP_literal == n->norm->d.Bd.type)
+ mdoc->flags |= MDOC_LITERAL;
+ if (DISP_unfilled == n->norm->d.Bd.type)
+ mdoc->flags |= MDOC_LITERAL;
+ break;
+ default:
+ abort();
+ /* NOTREACHED */
+ }
+
+ return(1);
+}
+
+static int
+post_dd(POST_ARGS)
+{
+ char buf[DATESIZE];
+ struct mdoc_node *n;
+
+ n = mdoc->last;
+
+ if (NULL == n->child) {
+ mdoc->meta.date = time(NULL);
+ return(1);
+ }
+
+ if ( ! concat(mdoc, buf, n->child, DATESIZE))
+ return(0);
+
+ mdoc->meta.date = mandoc_a2time
+ (MTIME_MDOCDATE | MTIME_CANONICAL, buf);
+
+ if (0 == mdoc->meta.date) {
+ mdoc_nmsg(mdoc, n, MANDOCERR_BADDATE);
+ mdoc->meta.date = time(NULL);
+ }
+
+ return(1);
+}
+
+static int
+post_dt(POST_ARGS)
+{
+ struct mdoc_node *nn, *n;
+ const char *cp;
+ char *p;
+
+ n = mdoc->last;
+
+ if (mdoc->meta.title)
+ free(mdoc->meta.title);
+ if (mdoc->meta.vol)
+ free(mdoc->meta.vol);
+ if (mdoc->meta.arch)
+ free(mdoc->meta.arch);
+
+ mdoc->meta.title = mdoc->meta.vol = mdoc->meta.arch = NULL;
+
+ /* First make all characters uppercase. */
+
+ if (NULL != (nn = n->child))
+ for (p = nn->string; *p; p++) {
+ if (toupper((u_char)*p) == *p)
+ continue;
+
+ /*
+ * FIXME: don't be lazy: have this make all
+ * characters be uppercase and just warn once.
+ */
+ mdoc_nmsg(mdoc, nn, MANDOCERR_UPPERCASE);
+ break;
+ }
+
+ /* Handles: `.Dt'
+ * --> title = unknown, volume = local, msec = 0, arch = NULL
+ */
+
+ if (NULL == (nn = n->child)) {
+ /* XXX: make these macro values. */
+ /* FIXME: warn about missing values. */
+ mdoc->meta.title = mandoc_strdup("UNKNOWN");
+ mdoc->meta.vol = mandoc_strdup("LOCAL");
+ mdoc->meta.msec = mandoc_strdup("1");
+ return(1);
+ }
+
+ /* Handles: `.Dt TITLE'
+ * --> title = TITLE, volume = local, msec = 0, arch = NULL
+ */
+
+ mdoc->meta.title = mandoc_strdup
+ ('\0' == nn->string[0] ? "UNKNOWN" : nn->string);
+
+ if (NULL == (nn = nn->next)) {
+ /* FIXME: warn about missing msec. */
+ /* XXX: make this a macro value. */
+ mdoc->meta.vol = mandoc_strdup("LOCAL");
+ mdoc->meta.msec = mandoc_strdup("1");
+ return(1);
+ }
+
+ /* 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) {
+ mdoc->meta.vol = mandoc_strdup(cp);
+ mdoc->meta.msec = mandoc_strdup(nn->string);
+ } else {
+ mdoc_nmsg(mdoc, n, MANDOCERR_BADMSEC);
+ mdoc->meta.vol = mandoc_strdup(nn->string);
+ mdoc->meta.msec = mandoc_strdup(nn->string);
+ }
+
+ if (NULL == (nn = nn->next))
+ return(1);
+
+ /* 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(mdoc->meta.vol);
+ mdoc->meta.vol = mandoc_strdup(cp);
+ } else {
+ /* FIXME: warn about bad arch. */
+ cp = mdoc_a2arch(nn->string);
+ if (NULL == cp) {
+ free(mdoc->meta.vol);
+ mdoc->meta.vol = mandoc_strdup(nn->string);
+ } else
+ mdoc->meta.arch = mandoc_strdup(cp);
+ }
+
+ /* Ignore any subsequent parameters... */
+ /* FIXME: warn about subsequent parameters. */
+
+ return(1);
+}
+
+static int
+post_prol(POST_ARGS)
+{
+ /*
+ * Remove prologue macros from the document after they're
+ * processed. The final document uses mdoc_meta for these
+ * values and discards the originals.
+ */
+
+ mdoc_node_delete(mdoc, mdoc->last);
+ if (mdoc->meta.title && mdoc->meta.date && mdoc->meta.os)
+ mdoc->flags |= MDOC_PBODY;
+
+ return(1);
+}
+
+static int
+post_os(POST_ARGS)
+{
+ struct mdoc_node *n;
+ char buf[BUFSIZ];
+#ifndef OSNAME
+ struct utsname utsname;
+#endif
+
+ n = mdoc->last;
+
+ /*
+ * 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().
+ */
+
+ if (mdoc->meta.os)
+ free(mdoc->meta.os);
+
+ if ( ! concat(mdoc, buf, n->child, BUFSIZ))
+ return(0);
+
+ /* XXX: yes, these can all be dynamically-adjusted buffers, but
+ * it's really not worth the extra hackery.
+ */
+
+ if ('\0' == buf[0]) {
+#ifdef OSNAME
+ if (strlcat(buf, OSNAME, BUFSIZ) >= BUFSIZ) {
+ mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
+ return(0);
+ }
+#else /*!OSNAME */
+ if (uname(&utsname)) {
+ mdoc_nmsg(mdoc, n, MANDOCERR_UNAME);
+ mdoc->meta.os = mandoc_strdup("UNKNOWN");
+ return(post_prol(mdoc));
+ }
+
+ if (strlcat(buf, utsname.sysname, BUFSIZ) >= BUFSIZ) {
+ mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
+ return(0);
+ }
+ if (strlcat(buf, " ", BUFSIZ) >= BUFSIZ) {
+ mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
+ return(0);
+ }
+ if (strlcat(buf, utsname.release, BUFSIZ) >= BUFSIZ) {
+ mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
+ return(0);
+ }
+#endif /*!OSNAME*/
+ }
+
+ mdoc->meta.os = mandoc_strdup(buf);
+ return(1);
+}
+
+static int
+post_std(POST_ARGS)
+{
+ struct mdoc_node *nn, *n;
+
+ n = mdoc->last;
+
+ /*
+ * Macros accepting `-std' as an argument have the name of the
+ * current document (`Nm') filled in as the argument if it's not
+ * provided.
+ */
+
+ if (n->child)
+ return(1);
+
+ if (NULL == mdoc->meta.name)
+ return(1);
+
+ nn = n;
+ mdoc->next = MDOC_NEXT_CHILD;
+
+ if ( ! mdoc_word_alloc(mdoc, n->line, n->pos, mdoc->meta.name))
+ return(0);
+
+ mdoc->last = nn;
+ return(1);
+}
+
+static int
+concat(struct mdoc *m, char *p, const struct mdoc_node *n, size_t sz)
+{
+
+ p[0] = '\0';
+
+ /*
+ * Concatenate sibling nodes together. All siblings must be of
+ * type MDOC_TEXT or an assertion is raised. Concatenation is
+ * separated by a single whitespace. Returns 0 on fatal (string
+ * overrun) error.
+ */
+
+ for ( ; n; n = n->next) {
+ assert(MDOC_TEXT == n->type);
+
+ if (strlcat(p, n->string, sz) >= sz) {
+ mdoc_nmsg(m, n, MANDOCERR_MEM);
+ return(0);
+ }
+
+ if (NULL == n->next)
+ continue;
+
+ if (strlcat(p, " ", sz) >= sz) {
+ mdoc_nmsg(m, n, MANDOCERR_MEM);
+ return(0);
+ }
+ }
+
+ return(1);
+}
+