]> git.cameronkatri.com Git - mandoc.git/blobdiff - mdoc_validate.c
On Linux, wcwidth() needs _XOPEN_SOURCE, or just _GNU_SOURCE for simplicity.
[mandoc.git] / mdoc_validate.c
index 32f141de8c943a8b05aaf74cb030853d34a4b0fb..15397b926a86ec2b48044d0b7e3c6785cf89322a 100644 (file)
@@ -1,4 +1,4 @@
-/*     $Id: mdoc_validate.c,v 1.217 2014/07/01 22:37:15 schwarze Exp $ */
+/*     $Id: mdoc_validate.c,v 1.245 2014/08/19 17:31:55 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org>
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
+#include <sys/types.h>
 #ifndef OSNAME
 #include <sys/utsname.h>
 #endif
 
-#include <sys/types.h>
-
 #include <assert.h>
 #include <ctype.h>
 #include <limits.h>
@@ -60,13 +57,12 @@ typedef     int     (*v_pre)(PRE_ARGS);
 typedef        int     (*v_post)(POST_ARGS);
 
 struct valids {
-       v_pre   *pre;
-       v_post  *post;
+       v_pre    pre;
+       v_post   post;
 };
 
 static int      check_count(struct mdoc *, enum mdoc_type,
                        enum check_lvl, enum check_ineq, int);
-static int      check_parent(PRE_ARGS, enum mdoct, enum mdoc_type);
 static void     check_text(struct mdoc *, int, int, char *);
 static void     check_argv(struct mdoc *,
                        struct mdoc_node *, struct mdoc_argv *);
@@ -84,38 +80,43 @@ static      int      ewarn_le1(POST_ARGS);
 static int      hwarn_eq0(POST_ARGS);
 static int      hwarn_eq1(POST_ARGS);
 static int      hwarn_ge1(POST_ARGS);
-static int      hwarn_le1(POST_ARGS);
 
 static int      post_an(POST_ARGS);
 static int      post_at(POST_ARGS);
 static int      post_bf(POST_ARGS);
+static int      post_bk(POST_ARGS);
 static int      post_bl(POST_ARGS);
 static int      post_bl_block(POST_ARGS);
 static int      post_bl_block_width(POST_ARGS);
 static int      post_bl_block_tag(POST_ARGS);
 static int      post_bl_head(POST_ARGS);
 static int      post_bx(POST_ARGS);
+static int      post_d1(POST_ARGS);
 static int      post_defaults(POST_ARGS);
 static int      post_dd(POST_ARGS);
 static int      post_dt(POST_ARGS);
+static int      post_en(POST_ARGS);
+static int      post_es(POST_ARGS);
 static int      post_eoln(POST_ARGS);
+static int      post_ex(POST_ARGS);
+static int      post_fo(POST_ARGS);
 static int      post_hyph(POST_ARGS);
+static int      post_hyphtext(POST_ARGS);
 static int      post_ignpar(POST_ARGS);
 static int      post_it(POST_ARGS);
 static int      post_lb(POST_ARGS);
 static int      post_literal(POST_ARGS);
+static int      post_nd(POST_ARGS);
 static int      post_nm(POST_ARGS);
 static int      post_ns(POST_ARGS);
 static int      post_os(POST_ARGS);
 static int      post_par(POST_ARGS);
-static int      post_prol(POST_ARGS);
 static int      post_root(POST_ARGS);
 static int      post_rs(POST_ARGS);
 static int      post_sh(POST_ARGS);
 static int      post_sh_body(POST_ARGS);
 static int      post_sh_head(POST_ARGS);
 static int      post_st(POST_ARGS);
-static int      post_std(POST_ARGS);
 static int      post_vt(POST_ARGS);
 static int      pre_an(PRE_ARGS);
 static int      pre_bd(PRE_ARGS);
@@ -123,126 +124,76 @@ static   int      pre_bl(PRE_ARGS);
 static int      pre_dd(PRE_ARGS);
 static int      pre_display(PRE_ARGS);
 static int      pre_dt(PRE_ARGS);
-static int      pre_it(PRE_ARGS);
 static int      pre_literal(PRE_ARGS);
+static int      pre_obsolete(PRE_ARGS);
 static int      pre_os(PRE_ARGS);
 static int      pre_par(PRE_ARGS);
-static int      pre_sh(PRE_ARGS);
-static int      pre_ss(PRE_ARGS);
 static int      pre_std(PRE_ARGS);
 
-static v_post   posts_an[] = { post_an, NULL };
-static v_post   posts_at[] = { post_at, post_defaults, NULL };
-static v_post   posts_bd[] = { post_literal, hwarn_eq0, bwarn_ge1, NULL };
-static v_post   posts_bf[] = { hwarn_le1, post_bf, NULL };
-static v_post   posts_bk[] = { hwarn_eq0, bwarn_ge1, NULL };
-static v_post   posts_bl[] = { bwarn_ge1, post_bl, NULL };
-static v_post   posts_bx[] = { post_bx, NULL };
-static v_post   posts_bool[] = { ebool, NULL };
-static v_post   posts_eoln[] = { post_eoln, NULL };
-static v_post   posts_defaults[] = { post_defaults, NULL };
-static v_post   posts_d1[] = { bwarn_ge1, post_hyph, NULL };
-static v_post   posts_dd[] = { post_dd, post_prol, NULL };
-static v_post   posts_dl[] = { post_literal, bwarn_ge1, NULL };
-static v_post   posts_dt[] = { post_dt, post_prol, NULL };
-static v_post   posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL };
-static v_post   posts_hyph[] = { post_hyph, NULL };
-static v_post   posts_hyphtext[] = { ewarn_ge1, post_hyph, NULL };
-static v_post   posts_it[] = { post_it, NULL };
-static v_post   posts_lb[] = { post_lb, NULL };
-static v_post   posts_nd[] = { berr_ge1, post_hyph, NULL };
-static v_post   posts_nm[] = { post_nm, NULL };
-static v_post   posts_notext[] = { ewarn_eq0, NULL };
-static v_post   posts_ns[] = { post_ns, NULL };
-static v_post   posts_os[] = { post_os, post_prol, NULL };
-static v_post   posts_pp[] = { post_par, ewarn_eq0, NULL };
-static v_post   posts_rs[] = { post_rs, NULL };
-static v_post   posts_sh[] = { post_ignpar,hwarn_ge1,post_sh,post_hyph,NULL };
-static v_post   posts_sp[] = { post_par, ewarn_le1, NULL };
-static v_post   posts_ss[] = { post_ignpar, hwarn_ge1, post_hyph, NULL };
-static v_post   posts_st[] = { post_st, NULL };
-static v_post   posts_std[] = { post_std, NULL };
-static v_post   posts_text[] = { ewarn_ge1, NULL };
-static v_post   posts_text1[] = { ewarn_eq1, NULL };
-static v_post   posts_vt[] = { post_vt, NULL };
-static v_pre    pres_an[] = { pre_an, NULL };
-static v_pre    pres_bd[] = { pre_display, pre_bd, pre_literal, pre_par, NULL };
-static v_pre    pres_bl[] = { pre_bl, pre_par, NULL };
-static v_pre    pres_d1[] = { pre_display, NULL };
-static v_pre    pres_dl[] = { pre_literal, pre_display, NULL };
-static v_pre    pres_dd[] = { pre_dd, NULL };
-static v_pre    pres_dt[] = { pre_dt, NULL };
-static v_pre    pres_it[] = { pre_it, pre_par, NULL };
-static v_pre    pres_os[] = { pre_os, NULL };
-static v_pre    pres_pp[] = { pre_par, NULL };
-static v_pre    pres_sh[] = { pre_sh, NULL };
-static v_pre    pres_ss[] = { pre_ss, NULL };
-static v_pre    pres_std[] = { pre_std, NULL };
-
 static const struct valids mdoc_valids[MDOC_MAX] = {
        { NULL, NULL },                         /* Ap */
-       { pres_dd, posts_dd },                  /* Dd */
-       { pres_dt, posts_dt },                  /* Dt */
-       { pres_os, posts_os },                  /* Os */
-       { pres_sh, posts_sh },                  /* Sh */
-       { pres_ss, posts_ss },                  /* Ss */
-       { pres_pp, posts_pp },                  /* Pp */
-       { pres_d1, posts_d1 },                  /* D1 */
-       { pres_dl, posts_dl },                  /* Dl */
-       { pres_bd, posts_bd },                  /* Bd */
+       { pre_dd, post_dd },                    /* Dd */
+       { pre_dt, post_dt },                    /* Dt */
+       { pre_os, post_os },                    /* Os */
+       { NULL, post_sh },                      /* Sh */
+       { NULL, post_ignpar },                  /* Ss */
+       { pre_par, post_par },                  /* Pp */
+       { pre_display, post_d1 },               /* D1 */
+       { pre_literal, post_literal },          /* Dl */
+       { pre_bd, post_literal },               /* Bd */
        { NULL, NULL },                         /* Ed */
-       { pres_bl, posts_bl },                  /* Bl */
+       { pre_bl, post_bl },                    /* Bl */
        { NULL, NULL },                         /* El */
-       { pres_it, posts_it },                  /* It */
+       { pre_par, post_it },                   /* It */
        { NULL, NULL },                         /* Ad */
-       { pres_an, posts_an },                  /* An */
-       { NULL, posts_defaults },               /* Ar */
+       { pre_an, post_an },                    /* An */
+       { NULL, post_defaults },                /* Ar */
        { NULL, NULL },                         /* Cd */
        { NULL, NULL },                         /* Cm */
        { NULL, NULL },                         /* Dv */
        { NULL, NULL },                         /* Er */
        { NULL, NULL },                         /* Ev */
-       { pres_std, posts_std },                /* Ex */
+       { pre_std, post_ex },                   /* Ex */
        { NULL, NULL },                         /* Fa */
-       { NULL, posts_text },                   /* Fd */
+       { NULL, ewarn_ge1 },                    /* Fd */
        { NULL, NULL },                         /* Fl */
        { NULL, NULL },                         /* Fn */
        { NULL, NULL },                         /* Ft */
        { NULL, NULL },                         /* Ic */
-       { NULL, posts_text1 },                  /* In */
-       { NULL, posts_defaults },               /* Li */
-       { NULL, posts_nd },                     /* Nd */
-       { NULL, posts_nm },                     /* Nm */
+       { NULL, ewarn_eq1 },                    /* In */
+       { NULL, post_defaults },                /* Li */
+       { NULL, post_nd },                      /* Nd */
+       { NULL, post_nm },                      /* Nm */
        { NULL, NULL },                         /* Op */
-       { NULL, NULL },                         /* Ot */
-       { NULL, posts_defaults },               /* Pa */
-       { pres_std, posts_std },                /* Rv */
-       { NULL, posts_st },                     /* St */
+       { pre_obsolete, NULL },                 /* Ot */
+       { NULL, post_defaults },                /* Pa */
+       { pre_std, NULL },                      /* Rv */
+       { NULL, post_st },                      /* St */
        { NULL, NULL },                         /* Va */
-       { NULL, posts_vt },                     /* Vt */
-       { NULL, posts_text },                   /* Xr */
-       { NULL, posts_text },                   /* %A */
-       { NULL, posts_hyphtext },               /* %B */ /* FIXME: can be used outside Rs/Re. */
-       { NULL, posts_text },                   /* %D */
-       { NULL, posts_text },                   /* %I */
-       { NULL, posts_text },                   /* %J */
-       { NULL, posts_hyphtext },               /* %N */
-       { NULL, posts_hyphtext },               /* %O */
-       { NULL, posts_text },                   /* %P */
-       { NULL, posts_hyphtext },               /* %R */
-       { NULL, posts_hyphtext },               /* %T */ /* FIXME: can be used outside Rs/Re. */
-       { NULL, posts_text },                   /* %V */
+       { NULL, post_vt },                      /* Vt */
+       { NULL, ewarn_ge1 },                    /* Xr */
+       { NULL, ewarn_ge1 },                    /* %A */
+       { NULL, post_hyphtext },                /* %B */ /* FIXME: can be used outside Rs/Re. */
+       { NULL, ewarn_ge1 },                    /* %D */
+       { NULL, ewarn_ge1 },                    /* %I */
+       { NULL, ewarn_ge1 },                    /* %J */
+       { NULL, post_hyphtext },                /* %N */
+       { NULL, post_hyphtext },                /* %O */
+       { NULL, ewarn_ge1 },                    /* %P */
+       { NULL, post_hyphtext },                /* %R */
+       { NULL, post_hyphtext },                /* %T */ /* FIXME: can be used outside Rs/Re. */
+       { NULL, ewarn_ge1 },                    /* %V */
        { NULL, NULL },                         /* Ac */
        { NULL, NULL },                         /* Ao */
        { NULL, NULL },                         /* Aq */
-       { NULL, posts_at },                     /* At */
+       { NULL, post_at },                      /* At */
        { NULL, NULL },                         /* Bc */
-       { NULL, posts_bf },                     /* Bf */
+       { NULL, post_bf },                      /* Bf */
        { NULL, NULL },                         /* Bo */
        { NULL, NULL },                         /* Bq */
        { NULL, NULL },                         /* Bsx */
-       { NULL, posts_bx },                     /* Bx */
-       { NULL, posts_bool },                   /* Db */
+       { NULL, post_bx },                      /* Bx */
+       { NULL, ebool },                        /* Db */
        { NULL, NULL },                         /* Dc */
        { NULL, NULL },                         /* Do */
        { NULL, NULL },                         /* Dq */
@@ -252,12 +203,12 @@ static    const struct valids mdoc_valids[MDOC_MAX] = {
        { NULL, NULL },                         /* Eo */
        { NULL, NULL },                         /* Fx */
        { NULL, NULL },                         /* Ms */
-       { NULL, posts_notext },                 /* No */
-       { NULL, posts_ns },                     /* Ns */
+       { NULL, ewarn_eq0 },                    /* No */
+       { NULL, post_ns },                      /* Ns */
        { NULL, NULL },                         /* Nx */
        { NULL, NULL },                         /* Ox */
        { NULL, NULL },                         /* Pc */
-       { NULL, posts_text1 },                  /* Pf */
+       { NULL, ewarn_eq1 },                    /* Pf */
        { NULL, NULL },                         /* Po */
        { NULL, NULL },                         /* Pq */
        { NULL, NULL },                         /* Qc */
@@ -265,42 +216,42 @@ static    const struct valids mdoc_valids[MDOC_MAX] = {
        { NULL, NULL },                         /* Qo */
        { NULL, NULL },                         /* Qq */
        { NULL, NULL },                         /* Re */
-       { NULL, posts_rs },                     /* Rs */
+       { NULL, post_rs },                      /* Rs */
        { NULL, NULL },                         /* Sc */
        { NULL, NULL },                         /* So */
        { NULL, NULL },                         /* Sq */
-       { NULL, posts_bool },                   /* Sm */
-       { NULL, posts_hyph },                   /* Sx */
+       { NULL, ebool },                        /* Sm */
+       { NULL, post_hyph },                    /* Sx */
        { NULL, NULL },                         /* Sy */
        { NULL, NULL },                         /* Tn */
        { NULL, NULL },                         /* Ux */
        { NULL, NULL },                         /* Xc */
        { NULL, NULL },                         /* Xo */
-       { NULL, posts_fo },                     /* Fo */
+       { NULL, post_fo },                      /* Fo */
        { NULL, NULL },                         /* Fc */
        { NULL, NULL },                         /* Oo */
        { NULL, NULL },                         /* Oc */
-       { NULL, posts_bk },                     /* Bk */
+       { NULL, post_bk },                      /* Bk */
        { NULL, NULL },                         /* Ek */
-       { NULL, posts_eoln },                   /* Bt */
+       { NULL, post_eoln },                    /* Bt */
        { NULL, NULL },                         /* Hf */
-       { NULL, NULL },                         /* Fr */
-       { NULL, posts_eoln },                   /* Ud */
-       { NULL, posts_lb },                     /* Lb */
-       { pres_pp, posts_pp },                  /* Lp */
+       { pre_obsolete, NULL },                 /* Fr */
+       { NULL, post_eoln },                    /* Ud */
+       { NULL, post_lb },                      /* Lb */
+       { pre_par, post_par },                  /* Lp */
        { NULL, NULL },                         /* Lk */
-       { NULL, posts_defaults },               /* Mt */
+       { NULL, post_defaults },                /* Mt */
        { NULL, NULL },                         /* Brq */
        { NULL, NULL },                         /* Bro */
        { NULL, NULL },                         /* Brc */
-       { NULL, posts_text },                   /* %C */
-       { NULL, NULL },                         /* Es */
-       { NULL, NULL },                         /* En */
+       { NULL, ewarn_ge1 },                    /* %C */
+       { pre_obsolete, post_es },              /* Es */
+       { pre_obsolete, post_en },              /* En */
        { NULL, NULL },                         /* Dx */
-       { NULL, posts_text },                   /* %Q */
-       { NULL, posts_pp },                     /* br */
-       { NULL, posts_sp },                     /* sp */
-       { NULL, posts_text1 },                  /* %U */
+       { NULL, ewarn_ge1 },                    /* %Q */
+       { NULL, post_par },                     /* br */
+       { NULL, post_par },                     /* sp */
+       { NULL, ewarn_eq1 },                    /* %U */
        { NULL, NULL },                         /* Ta */
        { NULL, NULL },                         /* ll */
 };
@@ -354,16 +305,11 @@ static    const char * const secnames[SEC__MAX] = {
 int
 mdoc_valid_pre(struct mdoc *mdoc, struct mdoc_node *n)
 {
-       v_pre           *p;
-       int              line, pos;
-       char            *tp;
+       v_pre    p;
 
        switch (n->type) {
        case MDOC_TEXT:
-               tp = n->string;
-               line = n->line;
-               pos = n->pos;
-               check_text(mdoc, line, pos, tp);
+               check_text(mdoc, n->line, n->pos, n->string);
                /* FALLTHROUGH */
        case MDOC_TBL:
                /* FALLTHROUGH */
@@ -376,25 +322,22 @@ mdoc_valid_pre(struct mdoc *mdoc, struct mdoc_node *n)
        }
 
        check_args(mdoc, n);
-
-       if (NULL == mdoc_valids[n->tok].pre)
-               return(1);
-       for (p = mdoc_valids[n->tok].pre; *p; p++)
-               if ( ! (*p)(mdoc, n))
-                       return(0);
-       return(1);
+       p = mdoc_valids[n->tok].pre;
+       return(*p ? (*p)(mdoc, n) : 1);
 }
 
 int
 mdoc_valid_post(struct mdoc *mdoc)
 {
-       v_post          *p;
+       struct mdoc_node *n;
+       v_post p;
 
-       if (MDOC_VALID & mdoc->last->flags)
+       n = mdoc->last;
+       if (n->flags & MDOC_VALID)
                return(1);
-       mdoc->last->flags |= MDOC_VALID;
+       n->flags |= MDOC_VALID;
 
-       switch (mdoc->last->type) {
+       switch (n->type) {
        case MDOC_TEXT:
                /* FALLTHROUGH */
        case MDOC_EQN:
@@ -404,16 +347,9 @@ mdoc_valid_post(struct mdoc *mdoc)
        case MDOC_ROOT:
                return(post_root(mdoc));
        default:
-               break;
+               p = mdoc_valids[n->tok].post;
+               return(*p ? (*p)(mdoc) : 1);
        }
-
-       if (NULL == mdoc_valids[mdoc->last->tok].post)
-               return(1);
-       for (p = mdoc_valids[mdoc->last->tok].post; *p; p++)
-               if ( ! (*p)(mdoc))
-                       return(0);
-
-       return(1);
 }
 
 static int
@@ -509,12 +445,6 @@ hwarn_ge1(POST_ARGS)
        return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_GT, 0));
 }
 
-static int
-hwarn_le1(POST_ARGS)
-{
-       return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_LT, 2));
-}
-
 static void
 check_args(struct mdoc *mdoc, struct mdoc_node *n)
 {
@@ -535,12 +465,6 @@ check_argv(struct mdoc *mdoc, struct mdoc_node *n, struct mdoc_argv *v)
 
        for (i = 0; i < (int)v->sz; i++)
                check_text(mdoc, v->line, v->pos, v->value[i]);
-
-       /* FIXME: move to post_std(). */
-
-       if (MDOC_Std == v->arg)
-               if ( ! (v->sz || mdoc->meta.name))
-                       mdoc_nmsg(mdoc, n, MANDOCERR_NONAME);
 }
 
 static void
@@ -552,25 +476,10 @@ check_text(struct mdoc *mdoc, int ln, int pos, char *p)
                return;
 
        for (cp = p; NULL != (p = strchr(p, '\t')); p++)
-               mdoc_pmsg(mdoc, ln, pos + (int)(p - cp), MANDOCERR_BADTAB);
+               mandoc_msg(MANDOCERR_FI_TAB, mdoc->parse,
+                   ln, pos + (int)(p - cp), NULL);
 }
 
-static int
-check_parent(PRE_ARGS, enum mdoct tok, enum mdoc_type t)
-{
-
-       assert(n->parent);
-       if ((MDOC_ROOT == t || tok == n->parent->tok) &&
-                       (t == n->parent->type))
-               return(1);
-
-       mandoc_vmsg(MANDOCERR_SYNTCHILD, mdoc->parse,
-           n->line, n->pos, "want parent %s",
-           MDOC_ROOT == t ? "<root>" : mdoc_macronames[tok]);
-       return(0);
-}
-
-
 static int
 pre_display(PRE_ARGS)
 {
@@ -585,7 +494,9 @@ pre_display(PRE_ARGS)
                                break;
 
        if (node)
-               mdoc_nmsg(mdoc, n, MANDOCERR_NESTEDDISP);
+               mandoc_vmsg(MANDOCERR_BD_NEST,
+                   mdoc->parse, n->line, n->pos,
+                   "%s in Bd", mdoc_macronames[n->tok]);
 
        return(1);
 }
@@ -593,10 +504,11 @@ pre_display(PRE_ARGS)
 static int
 pre_bl(PRE_ARGS)
 {
-       int               i, comp, dup;
-       const char       *offs, *width;
-       enum mdoc_list    lt;
        struct mdoc_node *np;
+       struct mdoc_argv *argv, *wa;
+       int               i;
+       enum mdocargt     mdoclt;
+       enum mdoc_list    lt;
 
        if (MDOC_BLOCK != n->type) {
                if (ENDBODY_NOT != n->end) {
@@ -617,11 +529,12 @@ pre_bl(PRE_ARGS)
         * ones.  If we find no list type, we default to LIST_item.
         */
 
+       wa = (n->args == NULL) ? NULL : n->args->argv;
+       mdoclt = MDOC_ARG_MAX;
        for (i = 0; n->args && i < (int)n->args->argc; i++) {
+               argv = n->args->argv + i;
                lt = LIST__NONE;
-               dup = comp = 0;
-               width = offs = NULL;
-               switch (n->args->argv[i].arg) {
+               switch (argv->arg) {
                /* Set list types. */
                case MDOC_Bullet:
                        lt = LIST_bullet;
@@ -658,76 +571,79 @@ pre_bl(PRE_ARGS)
                        break;
                /* Set list arguments. */
                case MDOC_Compact:
-                       dup = n->norm->Bl.comp;
-                       comp = 1;
+                       if (n->norm->Bl.comp)
+                               mandoc_msg(MANDOCERR_ARG_REP,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bl -compact");
+                       n->norm->Bl.comp = 1;
                        break;
                case MDOC_Width:
-                       /* NB: this can be empty! */
-                       if (n->args->argv[i].sz) {
-                               width = n->args->argv[i].value[0];
-                               dup = (NULL != n->norm->Bl.width);
+                       wa = argv;
+                       if (0 == argv->sz) {
+                               mandoc_msg(MANDOCERR_ARG_EMPTY,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bl -width");
+                               n->norm->Bl.width = "0n";
                                break;
                        }
-                       mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
+                       if (NULL != n->norm->Bl.width)
+                               mandoc_vmsg(MANDOCERR_ARG_REP,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bl -width %s",
+                                   argv->value[0]);
+                       n->norm->Bl.width = argv->value[0];
                        break;
                case MDOC_Offset:
-                       /* NB: this can be empty! */
-                       if (n->args->argv[i].sz) {
-                               offs = n->args->argv[i].value[0];
-                               dup = (NULL != n->norm->Bl.offs);
+                       if (0 == argv->sz) {
+                               mandoc_msg(MANDOCERR_ARG_EMPTY,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bl -offset");
                                break;
                        }
-                       mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
+                       if (NULL != n->norm->Bl.offs)
+                               mandoc_vmsg(MANDOCERR_ARG_REP,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bl -offset %s",
+                                   argv->value[0]);
+                       n->norm->Bl.offs = argv->value[0];
                        break;
                default:
                        continue;
                }
-
-               /* Check: duplicate auxiliary arguments. */
-
-               if (dup)
-                       mdoc_nmsg(mdoc, n, MANDOCERR_ARGVREP);
-
-               if (comp && ! dup)
-                       n->norm->Bl.comp = comp;
-               if (offs && ! dup)
-                       n->norm->Bl.offs = offs;
-               if (width && ! dup)
-                       n->norm->Bl.width = width;
+               if (LIST__NONE == lt)
+                       continue;
+               mdoclt = argv->arg;
 
                /* Check: multiple list types. */
 
-               if (LIST__NONE != lt && n->norm->Bl.type != LIST__NONE)
-                       mdoc_nmsg(mdoc, n, MANDOCERR_LISTREP);
-
-               /* Assign list type. */
-
-               if (LIST__NONE != lt && n->norm->Bl.type == LIST__NONE) {
-                       n->norm->Bl.type = lt;
-                       /* Set column information, too. */
-                       if (LIST_column == lt) {
-                               n->norm->Bl.ncols =
-                                   n->args->argv[i].sz;
-                               n->norm->Bl.cols = (void *)
-                                   n->args->argv[i].value;
-                       }
+               if (LIST__NONE != n->norm->Bl.type) {
+                       mandoc_vmsg(MANDOCERR_BL_REP,
+                           mdoc->parse, n->line, n->pos,
+                           "Bl -%s", mdoc_argnames[argv->arg]);
+                       continue;
                }
 
                /* The list type should come first. */
 
-               if (n->norm->Bl.type == LIST__NONE)
-                       if (n->norm->Bl.width ||
-                           n->norm->Bl.offs ||
-                           n->norm->Bl.comp)
-                               mdoc_nmsg(mdoc, n, MANDOCERR_LISTFIRST);
-
-               continue;
+               if (n->norm->Bl.width ||
+                   n->norm->Bl.offs ||
+                   n->norm->Bl.comp)
+                       mandoc_vmsg(MANDOCERR_BL_LATETYPE,
+                           mdoc->parse, n->line, n->pos, "Bl -%s",
+                           mdoc_argnames[n->args->argv[0].arg]);
+
+               n->norm->Bl.type = lt;
+               if (LIST_column == lt) {
+                       n->norm->Bl.ncols = argv->sz;
+                       n->norm->Bl.cols = (void *)argv->value;
+               }
        }
 
        /* Allow lists to default to LIST_item. */
 
        if (LIST__NONE == n->norm->Bl.type) {
-               mdoc_nmsg(mdoc, n, MANDOCERR_LISTTYPE);
+               mandoc_msg(MANDOCERR_BL_NOTYPE, mdoc->parse,
+                   n->line, n->pos, "Bl");
                n->norm->Bl.type = LIST_item;
        }
 
@@ -741,7 +657,8 @@ pre_bl(PRE_ARGS)
        switch (n->norm->Bl.type) {
        case LIST_tag:
                if (NULL == n->norm->Bl.width)
-                       mdoc_nmsg(mdoc, n, MANDOCERR_NOWIDTHARG);
+                       mandoc_msg(MANDOCERR_BL_NOWIDTH, mdoc->parse,
+                           n->line, n->pos, "Bl -tag");
                break;
        case LIST_column:
                /* FALLTHROUGH */
@@ -753,7 +670,9 @@ pre_bl(PRE_ARGS)
                /* FALLTHROUGH */
        case LIST_item:
                if (n->norm->Bl.width)
-                       mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
+                       mandoc_vmsg(MANDOCERR_BL_SKIPW, mdoc->parse,
+                           wa->line, wa->pos, "Bl -%s",
+                           mdoc_argnames[mdoclt]);
                break;
        case LIST_bullet:
                /* FALLTHROUGH */
@@ -771,16 +690,18 @@ pre_bl(PRE_ARGS)
                break;
        }
 
-       return(1);
+       return(pre_par(mdoc, n));
 }
 
 static int
 pre_bd(PRE_ARGS)
 {
-       int               i, dup, comp;
-       enum mdoc_disp    dt;
-       const char       *offs;
        struct mdoc_node *np;
+       struct mdoc_argv *argv;
+       int               i;
+       enum mdoc_disp    dt;
+
+       pre_literal(mdoc, n);
 
        if (MDOC_BLOCK != n->type) {
                if (ENDBODY_NOT != n->end) {
@@ -796,13 +717,12 @@ pre_bd(PRE_ARGS)
        }
 
        for (i = 0; n->args && i < (int)n->args->argc; i++) {
+               argv = n->args->argv + i;
                dt = DISP__NONE;
-               dup = comp = 0;
-               offs = NULL;
 
-               switch (n->args->argv[i].arg) {
+               switch (argv->arg) {
                case MDOC_Centred:
-                       dt = DISP_centred;
+                       dt = DISP_centered;
                        break;
                case MDOC_Ragged:
                        dt = DISP_ragged;
@@ -817,100 +737,74 @@ pre_bd(PRE_ARGS)
                        dt = DISP_literal;
                        break;
                case MDOC_File:
-                       mdoc_nmsg(mdoc, n, MANDOCERR_BADDISP);
+                       mandoc_msg(MANDOCERR_BD_FILE, mdoc->parse,
+                           n->line, n->pos, NULL);
                        return(0);
                case MDOC_Offset:
-                       /* NB: this can be empty! */
-                       if (n->args->argv[i].sz) {
-                               offs = n->args->argv[i].value[0];
-                               dup = (NULL != n->norm->Bd.offs);
+                       if (0 == argv->sz) {
+                               mandoc_msg(MANDOCERR_ARG_EMPTY,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bd -offset");
                                break;
                        }
-                       mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
+                       if (NULL != n->norm->Bd.offs)
+                               mandoc_vmsg(MANDOCERR_ARG_REP,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bd -offset %s",
+                                   argv->value[0]);
+                       n->norm->Bd.offs = argv->value[0];
                        break;
                case MDOC_Compact:
-                       comp = 1;
-                       dup = n->norm->Bd.comp;
+                       if (n->norm->Bd.comp)
+                               mandoc_msg(MANDOCERR_ARG_REP,
+                                   mdoc->parse, argv->line,
+                                   argv->pos, "Bd -compact");
+                       n->norm->Bd.comp = 1;
                        break;
                default:
                        abort();
                        /* NOTREACHED */
                }
+               if (DISP__NONE == dt)
+                       continue;
 
-               /* Check whether we have duplicates. */
-
-               if (dup)
-                       mdoc_nmsg(mdoc, n, MANDOCERR_ARGVREP);
-
-               /* Make our auxiliary assignments. */
-
-               if (offs && ! dup)
-                       n->norm->Bd.offs = offs;
-               if (comp && ! dup)
-                       n->norm->Bd.comp = comp;
-
-               /* Check whether a type has already been assigned. */
-
-               if (DISP__NONE != dt && n->norm->Bd.type != DISP__NONE)
-                       mdoc_nmsg(mdoc, n, MANDOCERR_DISPREP);
-
-               /* Make our type assignment. */
-
-               if (DISP__NONE != dt && n->norm->Bd.type == DISP__NONE)
+               if (DISP__NONE == n->norm->Bd.type)
                        n->norm->Bd.type = dt;
+               else
+                       mandoc_vmsg(MANDOCERR_BD_REP,
+                           mdoc->parse, n->line, n->pos,
+                           "Bd -%s", mdoc_argnames[argv->arg]);
        }
 
        if (DISP__NONE == n->norm->Bd.type) {
-               mdoc_nmsg(mdoc, n, MANDOCERR_DISPTYPE);
+               mandoc_msg(MANDOCERR_BD_NOTYPE, mdoc->parse,
+                   n->line, n->pos, "Bd");
                n->norm->Bd.type = DISP_ragged;
        }
 
-       return(1);
-}
-
-static int
-pre_ss(PRE_ARGS)
-{
-
-       if (MDOC_BLOCK != n->type)
-               return(1);
-       return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY));
-}
-
-static int
-pre_sh(PRE_ARGS)
-{
-
-       if (MDOC_BLOCK != n->type)
-               return(1);
-       return(check_parent(mdoc, n, MDOC_MAX, MDOC_ROOT));
-}
-
-static int
-pre_it(PRE_ARGS)
-{
-
-       if (MDOC_BLOCK != n->type)
-               return(1);
-
-       return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY));
+       return(pre_par(mdoc, n));
 }
 
 static int
 pre_an(PRE_ARGS)
 {
-       int              i;
+       struct mdoc_argv *argv;
+       size_t   i;
 
-       if (NULL == n->args)
+       if (n->args == NULL)
                return(1);
 
-       for (i = 1; i < (int)n->args->argc; i++)
-               mdoc_pmsg(mdoc, n->args->argv[i].line,
-                   n->args->argv[i].pos, MANDOCERR_IGNARGV);
+       for (i = 1; i < n->args->argc; i++) {
+               argv = n->args->argv + i;
+               mandoc_vmsg(MANDOCERR_AN_REP,
+                   mdoc->parse, argv->line, argv->pos,
+                   "An -%s", mdoc_argnames[argv->arg]);
+       }
 
-       if (MDOC_Split == n->args->argv[0].arg)
+       argv = n->args->argv;
+       if (argv->arg == MDOC_Split)
                n->norm->An.auth = AUTH_split;
-       else if (MDOC_Nosplit == n->args->argv[0].arg)
+       else if (argv->arg == MDOC_Nosplit)
                n->norm->An.auth = AUTH_nosplit;
        else
                abort();
@@ -926,22 +820,31 @@ pre_std(PRE_ARGS)
                if (MDOC_Std == n->args->argv[0].arg)
                        return(1);
 
-       mdoc_nmsg(mdoc, n, MANDOCERR_NOARGV);
+       mandoc_msg(MANDOCERR_ARG_STD, mdoc->parse,
+           n->line, n->pos, mdoc_macronames[n->tok]);
        return(1);
 }
 
 static int
-pre_dt(PRE_ARGS)
+pre_obsolete(PRE_ARGS)
 {
 
-       if (NULL == mdoc->meta.date || mdoc->meta.os)
-               mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
-                   n->line, n->pos, "Dt");
+       if (MDOC_ELEM == n->type || MDOC_BLOCK == n->type)
+               mandoc_msg(MANDOCERR_MACRO_OBS, mdoc->parse,
+                   n->line, n->pos, mdoc_macronames[n->tok]);
+       return(1);
+}
 
-       if (mdoc->meta.title)
+static int
+pre_dt(PRE_ARGS)
+{
+
+       if (mdoc->meta.title != NULL)
                mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
                    n->line, n->pos, "Dt");
-
+       else if (mdoc->meta.os != NULL)
+               mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
+                   n->line, n->pos, "Dt after Os");
        return(1);
 }
 
@@ -949,14 +852,12 @@ static int
 pre_os(PRE_ARGS)
 {
 
-       if (NULL == mdoc->meta.title || NULL == mdoc->meta.date)
-               mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
-                   n->line, n->pos, "Os");
-
-       if (mdoc->meta.os)
+       if (mdoc->meta.os != NULL)
                mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
                    n->line, n->pos, "Os");
-
+       else if (mdoc->flags & MDOC_PBODY)
+               mandoc_msg(MANDOCERR_PROLOG_LATE, mdoc->parse,
+                   n->line, n->pos, "Os");
        return(1);
 }
 
@@ -964,21 +865,25 @@ static int
 pre_dd(PRE_ARGS)
 {
 
-       if (mdoc->meta.title || mdoc->meta.os)
-               mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
-                   n->line, n->pos, "Dd");
-
-       if (mdoc->meta.date)
+       if (mdoc->meta.date != NULL)
                mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
                    n->line, n->pos, "Dd");
-
+       else if (mdoc->flags & MDOC_PBODY)
+               mandoc_msg(MANDOCERR_PROLOG_LATE, mdoc->parse,
+                   n->line, n->pos, "Dd");
+       else if (mdoc->meta.title != NULL)
+               mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
+                   n->line, n->pos, "Dd after Dt");
+       else if (mdoc->meta.os != NULL)
+               mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
+                   n->line, n->pos, "Dd after Os");
        return(1);
 }
 
 static int
 post_bf(POST_ARGS)
 {
-       struct mdoc_node *np;
+       struct mdoc_node *np, *nch;
        enum mdocargt     arg;
 
        /*
@@ -1005,18 +910,20 @@ post_bf(POST_ARGS)
        assert(MDOC_BLOCK == np->parent->type);
        assert(MDOC_Bf == np->parent->tok);
 
-       /*
-        * Cannot have both argument and parameter.
-        * If neither is specified, let it through with a warning.
-        */
+       /* Check the number of arguments. */
 
-       if (np->parent->args && np->child) {
-               mdoc_nmsg(mdoc, np, MANDOCERR_SYNTARGVCOUNT);
-               return(0);
-       } else if (NULL == np->parent->args && NULL == np->child) {
-               mdoc_nmsg(mdoc, np, MANDOCERR_FONTTYPE);
-               return(1);
+       nch = np->child;
+       if (NULL == np->parent->args) {
+               if (NULL == nch) {
+                       mandoc_msg(MANDOCERR_BF_NOFONT, mdoc->parse,
+                           np->line, np->pos, "Bf");
+                       return(1);
+               }
+               nch = nch->next;
        }
+       if (NULL != nch)
+               mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
+                   nch->line, nch->pos, "Bf ... %s", nch->string);
 
        /* Extract argument into data. */
 
@@ -1042,7 +949,9 @@ post_bf(POST_ARGS)
        else if (0 == strcmp(np->child->string, "Sy"))
                np->norm->Bf.font = FONT_Sy;
        else
-               mdoc_nmsg(mdoc, np, MANDOCERR_FONTTYPE);
+               mandoc_vmsg(MANDOCERR_BF_BADFONT, mdoc->parse,
+                   np->child->line, np->child->pos,
+                   "Bf %s", np->child->string);
 
        return(1);
 }
@@ -1075,9 +984,23 @@ post_lb(POST_ARGS)
 static int
 post_eoln(POST_ARGS)
 {
+       const struct mdoc_node *n;
 
-       if (mdoc->last->child)
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_ARGSLOST);
+       n = mdoc->last;
+       if (n->child)
+               mandoc_vmsg(MANDOCERR_ARG_SKIP,
+                   mdoc->parse, n->line, n->pos,
+                   "%s %s", mdoc_macronames[n->tok],
+                   n->child->string);
+       return(1);
+}
+
+static int
+post_fo(POST_ARGS)
+{
+
+       hwarn_eq1(mdoc);
+       bwarn_ge1(mdoc);
        return(1);
 }
 
@@ -1099,7 +1022,8 @@ post_vt(POST_ARGS)
 
        for (n = mdoc->last->child; n; n = n->next)
                if (MDOC_TEXT != n->type)
-                       mdoc_nmsg(mdoc, n, MANDOCERR_CHILD);
+                       mandoc_msg(MANDOCERR_VT_CHILD, mdoc->parse,
+                           n->line, n->pos, mdoc_macronames[n->tok]);
 
        return(1);
 }
@@ -1113,17 +1037,36 @@ post_nm(POST_ARGS)
 
        mdoc_deroff(&mdoc->meta.name, mdoc->last);
 
-       if (NULL == mdoc->meta.name) {
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NONAME);
-               mdoc->meta.name = mandoc_strdup("UNKNOWN");
-       }
+       if (NULL == mdoc->meta.name)
+               mandoc_msg(MANDOCERR_NM_NONAME, mdoc->parse,
+                   mdoc->last->line, mdoc->last->pos, "Nm");
        return(1);
 }
 
+static int
+post_nd(POST_ARGS)
+{
+
+       berr_ge1(mdoc);
+       return(post_hyph(mdoc));
+}
+
+static int
+post_d1(POST_ARGS)
+{
+
+       bwarn_ge1(mdoc);
+       return(post_hyph(mdoc));
+}
+
 static int
 post_literal(POST_ARGS)
 {
 
+       if (mdoc->last->tok == MDOC_Bd)
+               hwarn_eq0(mdoc);
+       bwarn_ge1(mdoc);
+
        /*
         * The `Dl' (note "el" not "one") and `Bd' macros unset the
         * MDOC_LITERAL flag as they leave.  Note that `Bd' only sets
@@ -1161,12 +1104,6 @@ post_defaults(POST_ARGS)
                if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "..."))
                        return(0);
                break;
-       case MDOC_At:
-               if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "AT&T"))
-                       return(0);
-               if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "UNIX"))
-                       return(0);
-               break;
        case MDOC_Li:
                if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, ""))
                        return(0);
@@ -1193,18 +1130,26 @@ post_at(POST_ARGS)
        const char              *std_att;
        char                    *att;
 
+       n = mdoc->last;
+       if (n->child == NULL) {
+               mdoc->next = MDOC_NEXT_CHILD;
+               if ( ! mdoc_word_alloc(mdoc, n->line, n->pos, "AT&T UNIX"))
+                       return(0);
+               mdoc->last = n;
+               return(1);
+       }
+
        /*
         * If we have a child, look it up in the standard keys.  If a
         * key exist, use that instead of the child; if it doesn't,
         * prefix "AT&T UNIX " to the existing data.
         */
 
-       if (NULL == (n = mdoc->last->child))
-               return(1);
-
+       n = n->child;
        assert(MDOC_TEXT == n->type);
        if (NULL == (std_att = mdoc_a2att(n->string))) {
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADATT);
+               mandoc_vmsg(MANDOCERR_AT_BAD, mdoc->parse,
+                   n->line, n->pos, "At %s", n->string);
                mandoc_asprintf(&att, "AT&T UNIX %s", n->string);
        } else
                att = mandoc_strdup(std_att);
@@ -1229,32 +1174,40 @@ post_an(POST_ARGS)
        return(1);
 }
 
+static int
+post_en(POST_ARGS)
+{
+
+       if (MDOC_BLOCK == mdoc->last->type)
+               mdoc->last->norm->Es = mdoc->last_es;
+       return(1);
+}
+
+static int
+post_es(POST_ARGS)
+{
+
+       mdoc->last_es = mdoc->last;
+       return(1);
+}
+
 static int
 post_it(POST_ARGS)
 {
        int               i, cols;
        enum mdoc_list    lt;
-       struct mdoc_node *n, *c;
-       enum mandocerr    er;
+       struct mdoc_node *nbl, *nit, *nch;
 
-       if (MDOC_BLOCK != mdoc->last->type)
+       nit = mdoc->last;
+       if (MDOC_BLOCK != nit->type)
                return(1);
 
-       n = mdoc->last->parent->parent;
-       lt = n->norm->Bl.type;
-
-       if (LIST__NONE == lt) {
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_LISTTYPE);
-               return(1);
-       }
+       nbl = nit->parent->parent;
+       lt = nbl->norm->Bl.type;
 
        switch (lt) {
        case LIST_tag:
-               if (mdoc->last->head->child)
-                       break;
-               /* FIXME: give this a dummy value. */
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOARGS);
-               break;
+               /* FALLTHROUGH */
        case LIST_hang:
                /* FALLTHROUGH */
        case LIST_ohang:
@@ -1262,8 +1215,11 @@ post_it(POST_ARGS)
        case LIST_inset:
                /* FALLTHROUGH */
        case LIST_diag:
-               if (NULL == mdoc->last->head->child)
-                       mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOARGS);
+               if (NULL == nit->head->child)
+                       mandoc_vmsg(MANDOCERR_IT_NOHEAD,
+                           mdoc->parse, nit->line, nit->pos,
+                           "Bl -%s It",
+                           mdoc_argnames[nbl->args->argv[0].arg]);
                break;
        case LIST_bullet:
                /* FALLTHROUGH */
@@ -1272,38 +1228,34 @@ post_it(POST_ARGS)
        case LIST_enum:
                /* FALLTHROUGH */
        case LIST_hyphen:
-               if (NULL == mdoc->last->body->child)
-                       mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOBODY);
+               if (NULL == nit->body->child)
+                       mandoc_vmsg(MANDOCERR_IT_NOBODY,
+                           mdoc->parse, nit->line, nit->pos,
+                           "Bl -%s It",
+                           mdoc_argnames[nbl->args->argv[0].arg]);
                /* FALLTHROUGH */
        case LIST_item:
-               if (mdoc->last->head->child)
-                       mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_ARGSLOST);
+               if (NULL != nit->head->child)
+                       mandoc_vmsg(MANDOCERR_ARG_SKIP,
+                           mdoc->parse, nit->line, nit->pos,
+                           "It %s", nit->head->child->string);
                break;
        case LIST_column:
-               cols = (int)n->norm->Bl.ncols;
-
-               assert(NULL == mdoc->last->head->child);
+               cols = (int)nbl->norm->Bl.ncols;
 
-               if (NULL == mdoc->last->body->child)
-                       mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOBODY);
+               assert(NULL == nit->head->child);
 
-               for (i = 0, c = mdoc->last->child; c; c = c->next)
-                       if (MDOC_BODY == c->type)
+               for (i = 0, nch = nit->child; nch; nch = nch->next)
+                       if (MDOC_BODY == nch->type)
                                i++;
 
-               if (i < cols)
-                       er = MANDOCERR_ARGCOUNT;
-               else if (i == cols || i == cols + 1)
-                       break;
-               else
-                       er = MANDOCERR_SYNTARGCOUNT;
-
-               mandoc_vmsg(er, mdoc->parse,
-                   mdoc->last->line, mdoc->last->pos,
-                   "columns == %d (have %d)", cols, i);
-               return(MANDOCERR_ARGCOUNT == er);
-       default:
+               if (i < cols || i > cols + 1)
+                       mandoc_vmsg(MANDOCERR_ARGCOUNT,
+                           mdoc->parse, nit->line, nit->pos,
+                           "columns == %d (have %d)", cols, i);
                break;
+       default:
+               abort();
        }
 
        return(1);
@@ -1352,12 +1304,17 @@ post_bl_block(POST_ARGS)
                                continue;
                        }
                        if (NULL == ni->next) {
-                               mdoc_nmsg(mdoc, nc, MANDOCERR_MOVEPAR);
+                               mandoc_msg(MANDOCERR_PAR_MOVE,
+                                   mdoc->parse, nc->line, nc->pos,
+                                   mdoc_macronames[nc->tok]);
                                if ( ! mdoc_node_relink(mdoc, nc))
                                        return(0);
                        } else if (0 == n->norm->Bl.comp &&
                            LIST_column != n->norm->Bl.type) {
-                               mdoc_nmsg(mdoc, nc, MANDOCERR_IGNPAR);
+                               mandoc_vmsg(MANDOCERR_PAR_SKIP,
+                                   mdoc->parse, nc->line, nc->pos,
+                                   "%s before It",
+                                   mdoc_macronames[nc->tok]);
                                mdoc_node_delete(mdoc, nc);
                        } else
                                break;
@@ -1391,10 +1348,8 @@ post_bl_block_width(POST_ARGS)
                width = 6;
        else if (MDOC_MAX == (tok = mdoc_hash_find(n->norm->Bl.width)))
                return(1);
-       else if (0 == (width = macro2len(tok)))  {
-               mdoc_nmsg(mdoc, n, MANDOCERR_BADWIDTH);
-               return(1);
-       }
+       else
+               width = macro2len(tok);
 
        /* The value already exists: free and reallocate it. */
 
@@ -1485,6 +1440,7 @@ static int
 post_bl_head(POST_ARGS)
 {
        struct mdoc_node *np, *nn, *nnp;
+       struct mdoc_argv *argv;
        int               i, j;
 
        if (LIST_column != mdoc->last->norm->Bl.type)
@@ -1492,22 +1448,12 @@ post_bl_head(POST_ARGS)
                return(hwarn_eq0(mdoc));
 
        /*
-        * Convert old-style lists, where the column width specifiers
+        * Append old-style lists, where the column width specifiers
         * trail as macro parameters, to the new-style ("normal-form")
         * lists where they're argument values following -column.
         */
 
-       /* First, disallow both types and allow normal-form. */
-
-       /*
-        * TODO: technically, we can accept both and just merge the two
-        * lists, but I'll leave that for another day.
-        */
-
-       if (mdoc->last->norm->Bl.ncols && mdoc->last->nchild) {
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_COLUMNS);
-               return(0);
-       } else if (NULL == mdoc->last->child)
+       if (mdoc->last->child == NULL)
                return(1);
 
        np = mdoc->last->parent;
@@ -1518,7 +1464,6 @@ post_bl_head(POST_ARGS)
                        break;
 
        assert(j < (int)np->args->argc);
-       assert(0 == np->args->argv[j].sz);
 
        /*
         * Accommodate for new-style groff column syntax.  Shuffle the
@@ -1526,15 +1471,17 @@ post_bl_head(POST_ARGS)
         * column field.  Then, delete the head children.
         */
 
-       np->args->argv[j].sz = (size_t)mdoc->last->nchild;
-       np->args->argv[j].value = mandoc_reallocarray(NULL,
-           (size_t)mdoc->last->nchild, sizeof(char *));
+       argv = np->args->argv + j;
+       i = argv->sz;
+       argv->sz += mdoc->last->nchild;
+       argv->value = mandoc_reallocarray(argv->value,
+           argv->sz, sizeof(char *));
 
-       mdoc->last->norm->Bl.ncols = np->args->argv[j].sz;
-       mdoc->last->norm->Bl.cols = (void *)np->args->argv[j].value;
+       mdoc->last->norm->Bl.ncols = argv->sz;
+       mdoc->last->norm->Bl.cols = (void *)argv->value;
 
-       for (i = 0, nn = mdoc->last->child; nn; i++) {
-               np->args->argv[j].value[i] = nn->string;
+       for (nn = mdoc->last->child; nn; i++) {
+               argv->value[i] = nn->string;
                nn->string = NULL;
                nnp = nn;
                nn = nn->next;
@@ -1566,6 +1513,8 @@ post_bl(POST_ARGS)
                return(1);
        }
 
+       bwarn_ge1(mdoc);
+
        nchild = nbody->child;
        while (NULL != nchild) {
                if (MDOC_It == nchild->tok || MDOC_Sm == nchild->tok) {
@@ -1573,7 +1522,9 @@ post_bl(POST_ARGS)
                        continue;
                }
 
-               mdoc_nmsg(mdoc, nchild, MANDOCERR_CHILD);
+               mandoc_msg(MANDOCERR_BL_MOVE, mdoc->parse,
+                   nchild->line, nchild->pos,
+                   mdoc_macronames[nchild->tok]);
 
                /*
                 * Move the node out of the Bl block.
@@ -1620,47 +1571,76 @@ post_bl(POST_ARGS)
        return(1);
 }
 
+static int
+post_bk(POST_ARGS)
+{
+
+       hwarn_eq0(mdoc);
+       bwarn_ge1(mdoc);
+       return(1);
+}
+
 static int
 ebool(struct mdoc *mdoc)
 {
+       struct mdoc_node        *nch;
+       enum mdoct               tok;
 
-       if (NULL == mdoc->last->child) {
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_MACROEMPTY);
-               mdoc_node_delete(mdoc, mdoc->last);
+       tok = mdoc->last->tok;
+       nch = mdoc->last->child;
+
+       if (NULL == nch) {
+               if (MDOC_Sm == tok)
+                       mdoc->flags ^= MDOC_SMOFF;
                return(1);
        }
-       check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_EQ, 1);
 
-       assert(MDOC_TEXT == mdoc->last->child->type);
+       check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_LT, 2);
 
-       if (0 == strcmp(mdoc->last->child->string, "on")) {
-               if (MDOC_Sm == mdoc->last->tok)
+       assert(MDOC_TEXT == nch->type);
+
+       if (0 == strcmp(nch->string, "on")) {
+               if (MDOC_Sm == tok)
                        mdoc->flags &= ~MDOC_SMOFF;
                return(1);
        }
-       if (0 == strcmp(mdoc->last->child->string, "off")) {
-               if (MDOC_Sm == mdoc->last->tok)
+       if (0 == strcmp(nch->string, "off")) {
+               if (MDOC_Sm == tok)
                        mdoc->flags |= MDOC_SMOFF;
                return(1);
        }
 
-       mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADBOOL);
-       return(1);
+       mandoc_vmsg(MANDOCERR_SM_BAD,
+           mdoc->parse, nch->line, nch->pos,
+           "%s %s", mdoc_macronames[tok], nch->string);
+       return(mdoc_node_relink(mdoc, nch));
 }
 
 static int
 post_root(POST_ARGS)
 {
-       int               ret;
        struct mdoc_node *n;
 
-       ret = 1;
+       /* Add missing prologue data. */
+
+       if (mdoc->meta.date == NULL)
+               mdoc->meta.date = mdoc->quick ?
+                   mandoc_strdup("") :
+                   mandoc_normdate(mdoc->parse, NULL, 0, 0);
+
+       if (mdoc->meta.title == NULL) {
+               mandoc_msg(MANDOCERR_DT_NOTITLE,
+                   mdoc->parse, 0, 0, "EOF");
+               mdoc->meta.title = mandoc_strdup("UNTITLED");
+       }
 
-       /* Check that we have a finished prologue. */
+       if (mdoc->meta.vol == NULL)
+               mdoc->meta.vol = mandoc_strdup("LOCAL");
 
-       if ( ! (MDOC_PBODY & mdoc->flags)) {
-               ret = 0;
-               mdoc_nmsg(mdoc, mdoc->first, MANDOCERR_NODOCPROLOG);
+       if (mdoc->meta.os == NULL) {
+               mandoc_msg(MANDOCERR_OS_MISSING,
+                   mdoc->parse, 0, 0, NULL);
+               mdoc->meta.os = mandoc_strdup("");
        }
 
        n = mdoc->first;
@@ -1669,35 +1649,41 @@ post_root(POST_ARGS)
        /* Check that we begin with a proper `Sh'. */
 
        if (NULL == n->child)
-               mdoc_nmsg(mdoc, n, MANDOCERR_DOC_EMPTY);
+               mandoc_msg(MANDOCERR_DOC_EMPTY, mdoc->parse,
+                   n->line, n->pos, NULL);
        else if (MDOC_Sh != n->child->tok)
                mandoc_msg(MANDOCERR_SEC_BEFORE, mdoc->parse,
                    n->child->line, n->child->pos,
                    mdoc_macronames[n->child->tok]);
 
-       return(ret);
+       return(1);
 }
 
 static int
 post_st(POST_ARGS)
 {
-       struct mdoc_node         *ch;
+       struct mdoc_node         *n, *nch;
        const char               *p;
 
-       if (NULL == (ch = mdoc->last->child)) {
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_MACROEMPTY);
-               mdoc_node_delete(mdoc, mdoc->last);
+       n = mdoc->last;
+       nch = n->child;
+
+       if (NULL == nch) {
+               mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
+                   n->line, n->pos, mdoc_macronames[n->tok]);
+               mdoc_node_delete(mdoc, n);
                return(1);
        }
 
-       assert(MDOC_TEXT == ch->type);
+       assert(MDOC_TEXT == nch->type);
 
-       if (NULL == (p = mdoc_a2st(ch->string))) {
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADSTANDARD);
-               mdoc_node_delete(mdoc, mdoc->last);
+       if (NULL == (p = mdoc_a2st(nch->string))) {
+               mandoc_vmsg(MANDOCERR_ST_BAD, mdoc->parse,
+                   nch->line, nch->pos, "St %s", nch->string);
+               mdoc_node_delete(mdoc, n);
        } else {
-               free(ch->string);
-               ch->string = mandoc_strdup(p);
+               free(nch->string);
+               nch->string = mandoc_strdup(p);
        }
 
        return(1);
@@ -1722,42 +1708,10 @@ post_rs(POST_ARGS)
                return(1);
        }
 
-       /*
-        * Make sure only certain types of nodes are allowed within the
-        * the `Rs' body.  Delete offending nodes and raise a warning.
-        * Do this before re-ordering for the sake of clarity.
-        */
-
-       next = NULL;
-       for (nn = mdoc->last->child; nn; nn = next) {
-               for (i = 0; i < RSORD_MAX; i++)
-                       if (nn->tok == rsord[i])
-                               break;
-
-               if (i < RSORD_MAX) {
-                       if (MDOC__J == rsord[i] || MDOC__B == rsord[i])
-                               mdoc->last->norm->Rs.quote_T++;
-                       next = nn->next;
-                       continue;
-               }
-
-               next = nn->next;
-               mdoc_nmsg(mdoc, nn, MANDOCERR_CHILD);
-               mdoc_node_delete(mdoc, nn);
-       }
-
-       /*
-        * Nothing to sort if only invalid nodes were found
-        * inside the `Rs' body.
-        */
-
-       if (NULL == mdoc->last->child)
-               return(1);
-
        /*
         * The full `Rs' block needs special handling to order the
         * sub-elements according to `rsord'.  Pick through each element
-        * and correctly order it.  This is a insertion sort.
+        * and correctly order it.  This is an insertion sort.
         */
 
        next = NULL;
@@ -1767,6 +1721,14 @@ post_rs(POST_ARGS)
                        if (rsord[i] == nn->tok)
                                break;
 
+               if (i == RSORD_MAX) {
+                       mandoc_msg(MANDOCERR_RS_BAD,
+                           mdoc->parse, nn->line, nn->pos,
+                           mdoc_macronames[nn->tok]);
+                       i = -1;
+               } else if (MDOC__J == nn->tok || MDOC__B == nn->tok)
+                       mdoc->last->norm->Rs.quote_T++;
+
                /*
                 * Remove `nn' from the chain.  This somewhat
                 * repeats mdoc_node_unlink(), but since we're
@@ -1792,6 +1754,8 @@ post_rs(POST_ARGS)
                        for (j = 0; j < RSORD_MAX; j++)
                                if (rsord[j] == prev->tok)
                                        break;
+                       if (j == RSORD_MAX)
+                               j = -1;
 
                        if (j <= i)
                                break;
@@ -1860,12 +1824,21 @@ post_hyph(POST_ARGS)
        return(1);
 }
 
+static int
+post_hyphtext(POST_ARGS)
+{
+
+       ewarn_ge1(mdoc);
+       return(post_hyph(mdoc));
+}
+
 static int
 post_ns(POST_ARGS)
 {
 
        if (MDOC_LINE & mdoc->last->flags)
-               mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNNS);
+               mandoc_msg(MANDOCERR_NS_SKIP, mdoc->parse,
+                   mdoc->last->line, mdoc->last->pos, NULL);
        return(1);
 }
 
@@ -1873,6 +1846,8 @@ static int
 post_sh(POST_ARGS)
 {
 
+       post_ignpar(mdoc);
+
        if (MDOC_HEAD == mdoc->last->type)
                return(post_sh_head(mdoc));
        if (MDOC_BODY == mdoc->last->type)
@@ -1942,8 +1917,9 @@ post_sh_head(POST_ARGS)
        /* The NAME should be first. */
 
        if (SEC_NAME != sec && SEC_NONE == mdoc->lastnamed)
-               mandoc_msg(MANDOCERR_NAMESEC_FIRST, mdoc->parse,
-                   mdoc->last->line, mdoc->last->pos, secname);
+               mandoc_vmsg(MANDOCERR_NAMESEC_FIRST, mdoc->parse,
+                   mdoc->last->line, mdoc->last->pos,
+                   "Sh %s", secname);
 
        /* The SYNOPSIS gets special attention in other areas. */
 
@@ -1986,12 +1962,14 @@ post_sh_head(POST_ARGS)
         */
 
        if (sec == mdoc->lastnamed)
-               mandoc_msg(MANDOCERR_SEC_REP, mdoc->parse,
-                   mdoc->last->line, mdoc->last->pos, secname);
+               mandoc_vmsg(MANDOCERR_SEC_REP, mdoc->parse,
+                   mdoc->last->line, mdoc->last->pos,
+                   "Sh %s", secname);
 
        if (sec < mdoc->lastnamed)
-               mandoc_msg(MANDOCERR_SEC_ORDER, mdoc->parse,
-                   mdoc->last->line, mdoc->last->pos, secname);
+               mandoc_vmsg(MANDOCERR_SEC_ORDER, mdoc->parse,
+                   mdoc->last->line, mdoc->last->pos,
+                   "Sh %s", secname);
 
        /* Mark the last named section. */
 
@@ -1999,7 +1977,10 @@ post_sh_head(POST_ARGS)
 
        /* Check particular section/manual conventions. */
 
-       assert(mdoc->meta.msec);
+       if (mdoc->meta.msec == NULL) {
+               free(secname);
+               return(1);
+       }
 
        goodsec = NULL;
        switch (sec) {
@@ -2025,7 +2006,7 @@ post_sh_head(POST_ARGS)
                        goodsec = "9";
                mandoc_vmsg(MANDOCERR_SEC_MSEC, mdoc->parse,
                    mdoc->last->line, mdoc->last->pos,
-                   "%s for %s only", secname, goodsec);
+                   "Sh %s for %s only", secname, goodsec);
                break;
        default:
                break;
@@ -2040,18 +2021,27 @@ post_ignpar(POST_ARGS)
 {
        struct mdoc_node *np;
 
+       hwarn_ge1(mdoc);
+       post_hyph(mdoc);
+
        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);
+                       mandoc_vmsg(MANDOCERR_PAR_SKIP,
+                           mdoc->parse, np->line, np->pos,
+                           "%s after %s", mdoc_macronames[np->tok],
+                           mdoc_macronames[mdoc->last->tok]);
                        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);
+                       mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
+                           np->line, np->pos, "%s at the end of %s",
+                           mdoc_macronames[np->tok],
+                           mdoc_macronames[mdoc->last->tok]);
                        mdoc_node_delete(mdoc, np);
                }
 
@@ -2083,7 +2073,10 @@ pre_par(PRE_ARGS)
        if (MDOC_It == n->tok && n->parent->norm->Bl.comp)
                return(1);
 
-       mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNPAR);
+       mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
+           mdoc->last->line, mdoc->last->pos,
+           "%s before %s", mdoc_macronames[mdoc->last->tok],
+           mdoc_macronames[n->tok]);
        mdoc_node_delete(mdoc, mdoc->last);
        return(1);
 }
@@ -2091,25 +2084,32 @@ pre_par(PRE_ARGS)
 static int
 post_par(POST_ARGS)
 {
+       struct mdoc_node *np;
+
+       if (mdoc->last->tok == MDOC_sp)
+               ewarn_le1(mdoc);
+       else
+               ewarn_eq0(mdoc);
 
        if (MDOC_ELEM != mdoc->last->type &&
            MDOC_BLOCK != mdoc->last->type)
                return(1);
 
-       if (NULL == mdoc->last->prev) {
-               if (MDOC_Sh != mdoc->last->parent->tok &&
-                   MDOC_Ss != mdoc->last->parent->tok)
+       if (NULL == (np = mdoc->last->prev)) {
+               np = mdoc->last->parent;
+               if (MDOC_Sh != np->tok && MDOC_Ss != np->tok)
                        return(1);
        } else {
-               if (MDOC_Pp != mdoc->last->prev->tok &&
-                   MDOC_Lp != mdoc->last->prev->tok &&
+               if (MDOC_Pp != np->tok && MDOC_Lp != np->tok &&
                    (MDOC_br != mdoc->last->tok ||
-                    (MDOC_sp != mdoc->last->prev->tok &&
-                     MDOC_br != mdoc->last->prev->tok)))
+                    (MDOC_sp != np->tok && MDOC_br != np->tok)))
                        return(1);
        }
 
-       mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNPAR);
+       mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
+           mdoc->last->line, mdoc->last->pos,
+           "%s after %s", mdoc_macronames[mdoc->last->tok],
+           mdoc_macronames[np->tok]);
        mdoc_node_delete(mdoc, mdoc->last);
        return(1);
 }
@@ -2118,6 +2118,8 @@ static int
 pre_literal(PRE_ARGS)
 {
 
+       pre_display(mdoc, n);
+
        if (MDOC_BODY != n->type)
                return(1);
 
@@ -2157,7 +2159,7 @@ post_dd(POST_ARGS)
        if (NULL == n->child || '\0' == n->child->string[0]) {
                mdoc->meta.date = mdoc->quick ? mandoc_strdup("") :
                    mandoc_normdate(mdoc->parse, NULL, n->line, n->pos);
-               return(1);
+               goto out;
        }
 
        datestr = NULL;
@@ -2169,6 +2171,8 @@ post_dd(POST_ARGS)
                    datestr, n->line, n->pos);
                free(datestr);
        }
+out:
+       mdoc_node_delete(mdoc, n);
        return(1);
 }
 
@@ -2181,14 +2185,15 @@ post_dt(POST_ARGS)
 
        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);
+       free(mdoc->meta.title);
+       free(mdoc->meta.msec);
+       free(mdoc->meta.vol);
+       free(mdoc->meta.arch);
 
-       mdoc->meta.title = mdoc->meta.vol = mdoc->meta.arch = NULL;
+       mdoc->meta.title = NULL;
+       mdoc->meta.msec = NULL;
+       mdoc->meta.vol = NULL;
+       mdoc->meta.arch = NULL;
 
        /* First check that all characters are uppercase. */
 
@@ -2196,39 +2201,34 @@ post_dt(POST_ARGS)
                for (p = nn->string; *p; p++) {
                        if (toupper((unsigned char)*p) == *p)
                                continue;
-                       mandoc_msg(MANDOCERR_TITLE_CASE,
+                       mandoc_vmsg(MANDOCERR_TITLE_CASE,
                            mdoc->parse, nn->line,
                            nn->pos + (p - nn->string),
-                           nn->string);
+                           "Dt %s", nn->string);
                        break;
                }
 
-       /* Handles: `.Dt'
-        * title = unknown, volume = local, msec = 0, arch = NULL
-        */
+       /* No argument: msec and arch remain NULL. */
 
        if (NULL == (nn = n->child)) {
-               /* XXX: make these macro values. */
-               /* FIXME: warn about missing values. */
-               mdoc->meta.title = mandoc_strdup("UNKNOWN");
+               mandoc_msg(MANDOCERR_DT_NOTITLE,
+                   mdoc->parse, n->line, n->pos, "Dt");
+               mdoc->meta.title = mandoc_strdup("UNTITLED");
                mdoc->meta.vol = mandoc_strdup("LOCAL");
-               mdoc->meta.msec = mandoc_strdup("1");
-               return(1);
+               goto out;
        }
 
-       /* Handles: `.Dt TITLE'
-        * title = TITLE, volume = local, msec = 0, arch = NULL
-        */
+       /* One argument: msec and arch remain NULL. */
 
        mdoc->meta.title = mandoc_strdup(
-           '\0' == nn->string[0] ? "UNKNOWN" : nn->string);
+           '\0' == nn->string[0] ? "UNTITLED" : nn->string);
 
        if (NULL == (nn = nn->next)) {
-               /* FIXME: warn about missing msec. */
-               /* XXX: make this a macro value. */
+               mandoc_vmsg(MANDOCERR_MSEC_MISSING,
+                   mdoc->parse, n->line, n->pos,
+                   "Dt %s", mdoc->meta.title);
                mdoc->meta.vol = mandoc_strdup("LOCAL");
-               mdoc->meta.msec = mandoc_strdup("1");
-               return(1);
+               goto out;
        }
 
        /* Handles: `.Dt TITLE SEC'
@@ -2243,14 +2243,14 @@ post_dt(POST_ARGS)
                mdoc->meta.vol = mandoc_strdup(cp);
                mdoc->meta.msec = mandoc_strdup(nn->string);
        } else {
-               mandoc_msg(MANDOCERR_MSEC_BAD, mdoc->parse,
-                   nn->line, nn->pos, nn->string);
+               mandoc_vmsg(MANDOCERR_MSEC_BAD, mdoc->parse,
+                   nn->line, nn->pos, "Dt ... %s", nn->string);
                mdoc->meta.vol = mandoc_strdup(nn->string);
                mdoc->meta.msec = mandoc_strdup(nn->string);
        }
 
        if (NULL == (nn = nn->next))
-               return(1);
+               goto out;
 
        /* Handles: `.Dt TITLE SEC VOL'
         * title = TITLE,
@@ -2266,8 +2266,8 @@ post_dt(POST_ARGS)
        } else {
                cp = mdoc_a2arch(nn->string);
                if (NULL == cp) {
-                       mandoc_msg(MANDOCERR_ARCH_BAD, mdoc->parse,
-                           nn->line, nn->pos, nn->string);
+                       mandoc_vmsg(MANDOCERR_ARCH_BAD, mdoc->parse,
+                           nn->line, nn->pos, "Dt ... %s", nn->string);
                        free(mdoc->meta.vol);
                        mdoc->meta.vol = mandoc_strdup(nn->string);
                } else
@@ -2276,23 +2276,8 @@ post_dt(POST_ARGS)
 
        /* 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;
-
+out:
+       mdoc_node_delete(mdoc, n);
        return(1);
 }
 
@@ -2338,11 +2323,11 @@ post_os(POST_ARGS)
        mdoc->meta.os = NULL;
        mdoc_deroff(&mdoc->meta.os, n);
        if (mdoc->meta.os)
-               return(1);
+               goto out;
 
        if (mdoc->defos) {
                mdoc->meta.os = mandoc_strdup(mdoc->defos);
-               return(1);
+               goto out;
        }
 
 #ifdef OSNAME
@@ -2350,7 +2335,8 @@ post_os(POST_ARGS)
 #else /*!OSNAME */
        if (NULL == defbuf) {
                if (-1 == uname(&utsname)) {
-                       mdoc_nmsg(mdoc, n, MANDOCERR_UNAME);
+                       mandoc_msg(MANDOCERR_OS_UNAME, mdoc->parse,
+                           n->line, n->pos, "Os");
                        defbuf = mandoc_strdup("UNKNOWN");
                } else
                        mandoc_asprintf(&defbuf, "%s %s",
@@ -2358,35 +2344,38 @@ post_os(POST_ARGS)
        }
        mdoc->meta.os = mandoc_strdup(defbuf);
 #endif /*!OSNAME*/
+
+out:
+       mdoc_node_delete(mdoc, n);
        return(1);
 }
 
+/*
+ * If no argument is provided,
+ * fill in the name of the current manual page.
+ */
 static int
-post_std(POST_ARGS)
+post_ex(POST_ARGS)
 {
-       struct mdoc_node *nn, *n;
+       struct mdoc_node *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)
+       if (mdoc->meta.name == NULL) {
+               mandoc_msg(MANDOCERR_EX_NONAME, mdoc->parse,
+                   n->line, n->pos, "Ex");
                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;
+       mdoc->last = n;
        return(1);
 }