Segmentation-fault fix in mdocterm.

[mandoc.git] / term.c

diff --git a/term.c b/term.c
index 40bb4dbc7d384dfb05a22fb68afd44315cefd1ed..d99fbd29ffca3b0114787de72d0ff8f565c6320b 100644 (file)
--- a/term.c
+++ b/term.c
@@ -1,6 +1,6 @@
-/* $Id: term.c,v 1.6 2009/02/21 21:00:06 kristaps Exp $ */
+/* $Id: term.c,v 1.45 2009/03/08 13:57:07 kristaps Exp $ */

 /*
 /*

- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>

  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the


@@ -19,491 +19,1693 @@
 #include <assert.h>
 #include <ctype.h>
 #include <err.h>
 #include <assert.h>
 #include <ctype.h>
 #include <err.h>

-#include <stdlib.h>

 #include <stdio.h>
 #include <stdio.h>

+#include <stdlib.h>

 #include <string.h>
 #include <string.h>

-#include <unistd.h>

 
 #include "term.h"
 
 
 #include "term.h"
 

-enum   termstyle {
-       STYLE_CLEAR,
-       STYLE_BOLD,
-       STYLE_UNDERLINE
+/*
+ * Performs actions on nodes of the abstract syntax tree.  Both pre- and
+ * post-fix operations are defined here.
+ */
+
+/* FIXME: macro arguments can be escaped. */
+
+#define        TTYPE_PROG        0
+#define        TTYPE_CMD_FLAG    1
+#define        TTYPE_CMD_ARG     2
+#define        TTYPE_SECTION     3
+#define        TTYPE_FUNC_DECL   4
+#define        TTYPE_VAR_DECL    5
+#define        TTYPE_FUNC_TYPE   6
+#define        TTYPE_FUNC_NAME   7
+#define        TTYPE_FUNC_ARG    8
+#define        TTYPE_LINK        9
+#define        TTYPE_SSECTION    10
+#define        TTYPE_FILE        11
+#define        TTYPE_EMPH        12
+#define        TTYPE_CONFIG      13
+#define        TTYPE_CMD         14
+#define        TTYPE_INCLUDE     15
+#define        TTYPE_SYMB        16
+#define        TTYPE_SYMBOL      17
+#define        TTYPE_DIAG        18
+#define        TTYPE_NMAX        19
+
+/* 
+ * These define "styles" for element types, like command arguments or
+ * executable names.  This is useful when multiple macros must decorate
+ * the same thing (like .Ex -std cmd and .Nm cmd). 
+ */
+
+/* TODO: abstract this into mdocterm.c. */
+
+const  int ttypes[TTYPE_NMAX] = {
+       TERMP_BOLD,             /* TTYPE_PROG */
+       TERMP_BOLD,             /* TTYPE_CMD_FLAG */
+       TERMP_UNDERLINE,        /* TTYPE_CMD_ARG */
+       TERMP_BOLD,             /* TTYPE_SECTION */
+       TERMP_BOLD,             /* TTYPE_FUNC_DECL */
+       TERMP_UNDERLINE,        /* TTYPE_VAR_DECL */
+       TERMP_UNDERLINE,        /* TTYPE_FUNC_TYPE */
+       TERMP_BOLD,             /* TTYPE_FUNC_NAME */
+       TERMP_UNDERLINE,        /* TTYPE_FUNC_ARG */
+       TERMP_UNDERLINE,        /* TTYPE_LINK */
+       TERMP_BOLD,             /* TTYPE_SSECTION */
+       TERMP_UNDERLINE,        /* TTYPE_FILE */
+       TERMP_UNDERLINE,        /* TTYPE_EMPH */
+       TERMP_BOLD,             /* TTYPE_CONFIG */
+       TERMP_BOLD,             /* TTYPE_CMD */
+       TERMP_BOLD,             /* TTYPE_INCLUDE */
+       TERMP_BOLD,             /* TTYPE_SYMB */
+       TERMP_BOLD,             /* TTYPE_SYMBOL */
+       TERMP_BOLD              /* TTYPE_DIAG */

 };
 
 };
 

-static void              termprint_r(struct termp *,
-                               const struct mdoc_meta *,
-                               const struct mdoc_node *);
-static void              termprint_header(struct termp *,
-                               const struct mdoc_meta *);
-static void              termprint_footer(struct termp *,
-                               const struct mdoc_meta *);
+static int               arg_hasattr(int, const struct mdoc_node *);
+static int               arg_getattr(int, const struct mdoc_node *);
+static size_t            arg_offset(const struct mdoc_argv *);
+static size_t            arg_width(const struct mdoc_argv *);
+static int               arg_listtype(const struct mdoc_node *);
+
+/*
+ * What follows describes prefix and postfix operations for the abstract
+ * syntax tree descent.
+ */
+
+#define        DECL_ARGS \
+       struct termp *p, \
+       struct termpair *pair, \
+       const struct mdoc_meta *meta, \
+       const struct mdoc_node *node
+
+#define        DECL_PRE(name) \
+static int               name##_pre(DECL_ARGS)
+#define        DECL_POST(name) \
+static void              name##_post(DECL_ARGS)
+#define        DECL_PREPOST(name) \
+DECL_PRE(name); \
+DECL_POST(name);
+
+DECL_PREPOST(termp__t);
+DECL_PREPOST(termp_aq);
+DECL_PREPOST(termp_bd);
+DECL_PREPOST(termp_bq);
+DECL_PREPOST(termp_d1);
+DECL_PREPOST(termp_dq);
+DECL_PREPOST(termp_fd);
+DECL_PREPOST(termp_fn);
+DECL_PREPOST(termp_fo);
+DECL_PREPOST(termp_ft);
+DECL_PREPOST(termp_in);
+DECL_PREPOST(termp_it);
+DECL_PREPOST(termp_op);
+DECL_PREPOST(termp_pf);
+DECL_PREPOST(termp_pq);
+DECL_PREPOST(termp_qq);
+DECL_PREPOST(termp_sh);
+DECL_PREPOST(termp_ss);
+DECL_PREPOST(termp_sq);
+DECL_PREPOST(termp_vt);
+
+DECL_PRE(termp_ar);
+DECL_PRE(termp_at);
+DECL_PRE(termp_bf);
+DECL_PRE(termp_bsx);
+DECL_PRE(termp_bt);
+DECL_PRE(termp_cd);
+DECL_PRE(termp_cm);
+DECL_PRE(termp_em);
+DECL_PRE(termp_ex);
+DECL_PRE(termp_fa);
+DECL_PRE(termp_fl);
+DECL_PRE(termp_fx);
+DECL_PRE(termp_ic);
+DECL_PRE(termp_ms);
+DECL_PRE(termp_nd);
+DECL_PRE(termp_nm);
+DECL_PRE(termp_ns);
+DECL_PRE(termp_nx);
+DECL_PRE(termp_ox);
+DECL_PRE(termp_pa);
+DECL_PRE(termp_pp);
+DECL_PRE(termp_rs);
+DECL_PRE(termp_rv);
+DECL_PRE(termp_sm);
+DECL_PRE(termp_st);
+DECL_PRE(termp_sx);
+DECL_PRE(termp_sy);
+DECL_PRE(termp_ud);
+DECL_PRE(termp_ux);
+DECL_PRE(termp_va);
+DECL_PRE(termp_xr);
+
+DECL_POST(termp___);
+DECL_POST(termp_bl);
+DECL_POST(termp_bx);
+DECL_POST(termp_lb);
+
+const  struct termact __termacts[MDOC_MAX] = {
+       { NULL, NULL }, /* \" */
+       { NULL, NULL }, /* Dd */
+       { NULL, NULL }, /* Dt */
+       { NULL, NULL }, /* Os */
+       { termp_sh_pre, termp_sh_post }, /* Sh */
+       { termp_ss_pre, termp_ss_post }, /* Ss */ 
+       { termp_pp_pre, NULL }, /* Pp */ 
+       { termp_d1_pre, termp_d1_post }, /* D1 */
+       { termp_d1_pre, termp_d1_post }, /* Dl */
+       { termp_bd_pre, termp_bd_post }, /* Bd */
+       { NULL, NULL }, /* Ed */
+       { NULL, termp_bl_post }, /* Bl */
+       { NULL, NULL }, /* El */
+       { termp_it_pre, termp_it_post }, /* It */
+       { NULL, NULL }, /* Ad */ 
+       { NULL, NULL }, /* An */
+       { termp_ar_pre, NULL }, /* Ar */
+       { termp_cd_pre, NULL }, /* Cd */
+       { termp_cm_pre, NULL }, /* Cm */
+       { NULL, NULL }, /* Dv */ 
+       { NULL, NULL }, /* Er */ 
+       { NULL, NULL }, /* Ev */ 
+       { termp_ex_pre, NULL }, /* Ex */
+       { termp_fa_pre, NULL }, /* Fa */ 
+       { termp_fd_pre, termp_fd_post }, /* Fd */ 
+       { termp_fl_pre, NULL }, /* Fl */
+       { termp_fn_pre, termp_fn_post }, /* Fn */ 
+       { termp_ft_pre, termp_ft_post }, /* Ft */ 
+       { termp_ic_pre, NULL }, /* Ic */ 
+       { termp_in_pre, termp_in_post }, /* In */ 
+       { NULL, NULL }, /* Li */
+       { termp_nd_pre, NULL }, /* Nd */ 
+       { termp_nm_pre, NULL }, /* Nm */ 
+       { termp_op_pre, termp_op_post }, /* Op */
+       { NULL, NULL }, /* Ot */
+       { termp_pa_pre, NULL }, /* Pa */
+       { termp_rv_pre, NULL }, /* Rv */
+       { termp_st_pre, NULL }, /* St */ 
+       { termp_va_pre, NULL }, /* Va */
+       { termp_vt_pre, termp_vt_post }, /* Vt */ 
+       { termp_xr_pre, NULL }, /* Xr */
+       { NULL, termp____post }, /* %A */
+       { NULL, termp____post }, /* %B */
+       { NULL, termp____post }, /* %D */
+       { NULL, termp____post }, /* %I */
+       { NULL, termp____post }, /* %J */
+       { NULL, termp____post }, /* %N */
+       { NULL, termp____post }, /* %O */
+       { NULL, termp____post }, /* %P */
+       { NULL, termp____post }, /* %R */
+       { termp__t_pre, termp__t_post }, /* %T */
+       { NULL, termp____post }, /* %V */
+       { NULL, NULL }, /* Ac */
+       { termp_aq_pre, termp_aq_post }, /* Ao */
+       { termp_aq_pre, termp_aq_post }, /* Aq */
+       { termp_at_pre, NULL }, /* At */
+       { NULL, NULL }, /* Bc */
+       { termp_bf_pre, NULL }, /* Bf */ 
+       { termp_bq_pre, termp_bq_post }, /* Bo */
+       { termp_bq_pre, termp_bq_post }, /* Bq */
+       { termp_bsx_pre, NULL }, /* Bsx */
+       { NULL, termp_bx_post }, /* Bx */
+       { NULL, NULL }, /* Db */
+       { NULL, NULL }, /* Dc */
+       { termp_dq_pre, termp_dq_post }, /* Do */
+       { termp_dq_pre, termp_dq_post }, /* Dq */
+       { NULL, NULL }, /* Ec */
+       { NULL, NULL }, /* Ef */
+       { termp_em_pre, NULL }, /* Em */ 
+       { NULL, NULL }, /* Eo */
+       { termp_fx_pre, NULL }, /* Fx */
+       { termp_ms_pre, NULL }, /* Ms */
+       { NULL, NULL }, /* No */
+       { termp_ns_pre, NULL }, /* Ns */
+       { termp_nx_pre, NULL }, /* Nx */
+       { termp_ox_pre, NULL }, /* Ox */
+       { NULL, NULL }, /* Pc */
+       { termp_pf_pre, termp_pf_post }, /* Pf */
+       { termp_pq_pre, termp_pq_post }, /* Po */
+       { termp_pq_pre, termp_pq_post }, /* Pq */
+       { NULL, NULL }, /* Qc */
+       { termp_sq_pre, termp_sq_post }, /* Ql */
+       { termp_qq_pre, termp_qq_post }, /* Qo */
+       { termp_qq_pre, termp_qq_post }, /* Qq */
+       { NULL, NULL }, /* Re */
+       { termp_rs_pre, NULL }, /* Rs */
+       { NULL, NULL }, /* Sc */
+       { termp_sq_pre, termp_sq_post }, /* So */
+       { termp_sq_pre, termp_sq_post }, /* Sq */
+       { termp_sm_pre, NULL }, /* Sm */
+       { termp_sx_pre, NULL }, /* Sx */
+       { termp_sy_pre, NULL }, /* Sy */
+       { NULL, NULL }, /* Tn */
+       { termp_ux_pre, NULL }, /* Ux */
+       { NULL, NULL }, /* Xc */
+       { NULL, NULL }, /* Xo */
+       { termp_fo_pre, termp_fo_post }, /* Fo */ 
+       { NULL, NULL }, /* Fc */ 
+       { termp_op_pre, termp_op_post }, /* Oo */
+       { NULL, NULL }, /* Oc */
+       { NULL, NULL }, /* Bk */
+       { NULL, NULL }, /* Ek */
+       { termp_bt_pre, NULL }, /* Bt */
+       { NULL, NULL }, /* Hf */
+       { NULL, NULL }, /* Fr */
+       { termp_ud_pre, NULL }, /* Ud */
+       { NULL, termp_lb_post }, /* lb */
+};

 
 

-static void              pword(struct termp *, const char *, size_t);
-static void              pescape(struct termp *, 
-                               const char *, size_t *, size_t);
-static void              chara(struct termp *, char);
-static void              style(struct termp *, enum termstyle);
+const struct termact *termacts = __termacts;

 
 
 
 

-void
-flushln(struct termp *p)
+static size_t
+arg_width(const struct mdoc_argv *arg)

 {
 {

-       size_t           i, j, vsz, vis, maxvis;
+       size_t           v;
+       int              i, len;

 
 

-       /*
-        * First, establish the maximum columns of "visible" content.
-        * This is usually the difference between the right-margin and
-        * an indentation, but can be, for tagged lists or columns, a
-        * small set of values.
-        */
+       assert(*arg->value);
+       if (0 == strcmp(*arg->value, "indent"))
+               return(INDENT);
+       if (0 == strcmp(*arg->value, "indent-two"))
+               return(INDENT * 2);

 
 

-       assert(p->offset < p->rmargin);
-       maxvis = p->rmargin - p->offset;
-       vis = 0;
+       len = (int)strlen(*arg->value);
+       assert(len > 0);

 
 

-       /*
-        * If in the standard case (left-justified), then begin with our
-        * indentation, otherwise (columns, etc.) just start spitting
-        * out text.
-        */
+       for (i = 0; i < len - 1; i++) 
+               if ( ! isdigit((u_char)(*arg->value)[i]))
+                       break;

 
 

-       if ( ! (p->flags & TERMP_NOLPAD))
-               /* LINTED */
-               for (j = 0; j < p->offset; j++)
-                       putchar(' ');
-
-       for (i = 0; i < p->col; i++) {
-               /*
-                * Count up visible word characters.  Control sequences
-                * (starting with the CSI) aren't counted. 
-                */
-               assert( ! isspace(p->buf[i]));
-
-               /* LINTED */
-               for (j = i, vsz = 0; j < p->col; j++) {
-                       if (isspace(p->buf[j]))
-                               break;
-                       else if (27 == p->buf[j]) {
-                               assert(j + 4 <= p->col);
-                               j += 3;
-                       } else
-                               vsz++;
-               }
-               assert(vsz > 0);
-
-               /*
-                * If a word is too long and we're within a line, put it
-                * on the next line.  Puke if we're being asked to write
-                * something that will exceed the right margin (i.e.,
-                * from a fresh line or when we're not allowed to break
-                * the line with TERMP_NOBREAK).
-                */
-
-               if (vis && vis + vsz >= maxvis) {
-                       /* FIXME */
-                       if (p->flags & TERMP_NOBREAK)
-                               errx(1, "word breaks right margin");
-                       putchar('\n');
-                       for (j = 0; j < p->offset; j++)
-                               putchar(' ');
-                       vis = 0;
-               } else if (vis + vsz >= maxvis) {
-                       /* FIXME */
-                       errx(1, "word breaks right margin");
+       if (i == len - 1) {
+               if ('n' == (*arg->value)[len - 1]) {
+                       v = (size_t)atoi(*arg->value);
+                       return(v);

                }
 
                }
 

-               /* 
-                * Write out the word and a trailing space.  Omit the
-                * space if we're the last word in the line.
-                */
+       }
+       return(strlen(*arg->value) + 1);
+}
+

 
 

-               for ( ; i < p->col; i++) {
-                       if (isspace(p->buf[i]))
-                               break;
-                       putchar(p->buf[i]);
-               }
-               vis += vsz;
-               if (i < p->col) {
-                       putchar(' ');
-                       vis++;
+static int
+arg_listtype(const struct mdoc_node *n)
+{
+       int              i, len;
+
+       assert(MDOC_BLOCK == n->type);
+
+       len = n->args ? n->args->argc : 0;
+
+       for (i = 0; i < len; i++) 
+               switch (n->args->argv[i].arg) {
+               case (MDOC_Bullet):
+                       /* FALLTHROUGH */
+               case (MDOC_Dash):
+                       /* FALLTHROUGH */
+               case (MDOC_Enum):
+                       /* FALLTHROUGH */
+               case (MDOC_Hyphen):
+                       /* FALLTHROUGH */
+               case (MDOC_Tag):
+                       /* FALLTHROUGH */
+               case (MDOC_Inset):
+                       /* FALLTHROUGH */
+               case (MDOC_Diag):
+                       /* FALLTHROUGH */
+               case (MDOC_Item):
+                       /* FALLTHROUGH */
+               case (MDOC_Ohang):
+                       return(n->args->argv[i].arg);
+               default:
+                       break;

                }
                }

-       }

 
 

-       /*
-        * If we're not to right-marginalise it (newline), then instead
-        * pad to the right margin and stay off.
-        */
+       errx(1, "list type not supported");
+       /* NOTREACHED */
+}
+

 
 

-       if (p->flags & TERMP_NOBREAK) {
-               for ( ; vis <= maxvis; vis++)
-                       putchar(' ');
-       } else
-               putchar('\n');
+static size_t
+arg_offset(const struct mdoc_argv *arg)
+{

 
 

-       p->col = 0;
+       /* TODO */
+       assert(*arg->value);
+       if (0 == strcmp(*arg->value, "indent"))
+               return(INDENT);
+       if (0 == strcmp(*arg->value, "indent-two"))
+               return(INDENT * 2);
+       return(strlen(*arg->value));

 }
 
 
 }
 
 

-void
-newln(struct termp *p)
+static int
+arg_hasattr(int arg, const struct mdoc_node *n)

 {
 
 {
 

-       /* 
-        * A newline only breaks an existing line; it won't assert
-        * vertical space.
-        */
-       p->flags |= TERMP_NOSPACE;
-       if (0 == p->col) 
-               return;
-       flushln(p);
+       return(-1 != arg_getattr(arg, n));
+}
+
+
+static int
+arg_getattr(int arg, const struct mdoc_node *n)
+{
+       int              i;
+
+       if (NULL == n->args)
+               return(-1);
+       for (i = 0; i < (int)n->args->argc; i++) 
+               if (n->args->argv[i].arg == arg)
+                       return(i);
+       return(-1);

 }
 
 
 }
 
 

-void
-vspace(struct termp *p)
+/* ARGSUSED */
+static int
+termp_dq_pre(DECL_ARGS)

 {
 
 {
 

-       /*
-        * Asserts a vertical space (a full, empty line-break between
-        * lines).
-        */
-       newln(p);
-       putchar('\n');
+       if (MDOC_BODY != node->type)
+               return(1);
+
+       word(p, "``");
+       p->flags |= TERMP_NOSPACE;
+       return(1);

 }
 
 
 }
 
 

+/* ARGSUSED */

 static void
 static void

-chara(struct termp *p, char c)
+termp_dq_post(DECL_ARGS)

 {
 
 {
 

-       /* TODO: dynamically expand the buffer. */
-       if (p->col + 1 >= p->maxcols)
-               errx(1, "line overrun");
-       p->buf[(p->col)++] = c;
+       if (MDOC_BODY != node->type)
+               return;
+
+       p->flags |= TERMP_NOSPACE;
+       word(p, "''");

 }
 
 
 }
 
 

-static void
-style(struct termp *p, enum termstyle esc)
+/* ARGSUSED */
+static int
+termp_it_pre_block(DECL_ARGS)
+{
+
+       newln(p);
+       if ( ! arg_hasattr(MDOC_Compact, node->parent->parent))
+               if (node->prev || node->parent->parent->prev)
+                       vspace(p);
+
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_it_pre(DECL_ARGS)

 {
 {

+       const struct mdoc_node *bl;
+       char             buf[7];
+       int              i, type;
+       size_t           width, offset;
+
+       if (MDOC_BLOCK == node->type)
+               return(termp_it_pre_block(p, pair, meta, node));
+
+       /* Get ptr to list block, type, etc. */
+
+       bl = node->parent->parent->parent;
+       type = arg_listtype(bl);
+
+       /* Save parent attributes. */
+
+       pair->offset = p->offset;
+       pair->rmargin = p->rmargin;
+       pair->flag = p->flags;

 
 

-       if (p->col + 4 >= p->maxcols)
-               errx(1, "line overrun");
+       /* Get list width and offset. */

 
 

-       p->buf[(p->col)++] = 27;
-       p->buf[(p->col)++] = '[';
-       switch (esc) {
-       case (STYLE_CLEAR):
-               p->buf[(p->col)++] = '0';
+       i = arg_getattr(MDOC_Width, bl);
+       width = i >= 0 ? arg_width(&bl->args->argv[i]) : 0;
+
+       i = arg_getattr(MDOC_Offset, bl);
+       offset = i >= 0 ? arg_offset(&bl->args->argv[i]) : 0;
+
+       /* 
+        * List-type can override the width in the case of fixed-head
+        * values (bullet, dash/hyphen, enum).  Tags need a non-zero
+        * offset.
+        */
+
+       switch (type) {
+       case (MDOC_Bullet):
+               /* FALLTHROUGH */
+       case (MDOC_Dash):
+               /* FALLTHROUGH */
+       case (MDOC_Enum):
+               /* FALLTHROUGH */
+       case (MDOC_Hyphen):
+               width = width > 4 ? width : 4;

                break;
                break;

-       case (STYLE_BOLD):
-               p->buf[(p->col)++] = '1';
+       case (MDOC_Tag):
+               if (width)
+                       break;
+               errx(1, "need non-zero %s for list type", 
+                               mdoc_argnames[MDOC_Width]);
+       default:

                break;
                break;

-       case (STYLE_UNDERLINE):
-               p->buf[(p->col)++] = '4';
+       }
+
+       /* 
+        * Whitespace control.  Inset bodies need an initial space.
+        */
+
+       switch (type) {
+       case (MDOC_Diag):
+               /* FALLTHROUGH */
+       case (MDOC_Inset):
+               if (MDOC_BODY == node->type) 
+                       p->flags &= ~TERMP_NOSPACE;
+               else
+                       p->flags |= TERMP_NOSPACE;

                break;
        default:
                break;
        default:

-               abort();
-               /* NOTREACHED */
+               p->flags |= TERMP_NOSPACE;
+               break;

        }
        }

-       p->buf[(p->col)++] = 'm';
-}

 
 

+       /*
+        * Style flags.  Diagnostic heads need TTYPE_DIAG.
+        */
+
+       switch (type) {
+       case (MDOC_Diag):
+               if (MDOC_HEAD == node->type)
+                       p->flags |= ttypes[TTYPE_DIAG];
+               break;
+       default:
+               break;
+       }

 
 

-static void
-pescape(struct termp *p, const char *word, size_t *i, size_t len)
-{
+       /*
+        * Pad and break control.  This is the tricker part.  Lists with
+        * set right-margins for the head get TERMP_NOBREAK because, if
+        * they overrun the margin, they wrap to the new margin.
+        * Correspondingly, the body for these types don't left-pad, as
+        * the head will pad out to to the right.
+        */
+
+       switch (type) {
+       case (MDOC_Bullet):
+               /* FALLTHROUGH */
+       case (MDOC_Dash):
+               /* FALLTHROUGH */
+       case (MDOC_Enum):
+               /* FALLTHROUGH */
+       case (MDOC_Hyphen):
+               /* FALLTHROUGH */
+       case (MDOC_Tag):
+               if (MDOC_HEAD == node->type)
+                       p->flags |= TERMP_NOBREAK;
+               else
+                       p->flags |= TERMP_NOLPAD;
+               if (MDOC_HEAD == node->type && MDOC_Tag == type)
+                       if (NULL == node->next ||
+                                       NULL == node->next->child)
+                               p->flags |= TERMP_NONOBREAK;
+               break;
+       case (MDOC_Diag):
+               if (MDOC_HEAD == node->type)
+                       p->flags |= TERMP_NOBREAK;
+               break;
+       default:
+               break;
+       }

 
 

-       (*i)++;
-       assert(*i < len);
+       /* 
+        * Margin control.  Set-head-width lists have their right
+        * margins shortened.  The body for these lists has the offset
+        * necessarily lengthened.  Everybody gets the offset.
+        */

 
 

-       if ('(' == word[*i]) {
-               /* Two-character escapes. */
-               (*i)++;
-               assert(*i + 1 < len);
+       p->offset += offset;
+
+       switch (type) {
+       case (MDOC_Bullet):
+               /* FALLTHROUGH */
+       case (MDOC_Dash):
+               /* FALLTHROUGH */
+       case (MDOC_Enum):
+               /* FALLTHROUGH */
+       case (MDOC_Hyphen):
+               /* FALLTHROUGH */
+       case (MDOC_Tag):
+               if (MDOC_HEAD == node->type)
+                       p->rmargin = p->offset + width;
+               else 
+                       p->offset += width;
+               /* FALLTHROUGH */
+       default:
+               break;
+       }

 
 

-               if ('r' == word[*i] && 'B' == word[*i + 1])
-                       chara(p, ']');
-               else if ('l' == word[*i] && 'B' == word[*i + 1])
-                       chara(p, '[');
+       /* 
+        * The dash, hyphen, bullet and enum lists all have a special
+        * HEAD character.  Print it now.
+        */

 
 

-               (*i)++;
-               return;
+       if (MDOC_HEAD == node->type)
+               switch (type) {
+               case (MDOC_Bullet):
+                       word(p, "\\[bu]");
+                       break;
+               case (MDOC_Dash):
+                       /* FALLTHROUGH */
+               case (MDOC_Hyphen):
+                       word(p, "\\-");
+                       break;
+               case (MDOC_Enum):
+                       /* TODO: have a wordfmt or something. */
+                       (pair->ppair->ppair->count)++;
+                       (void)snprintf(buf, sizeof(buf), "%d.", 
+                                       pair->ppair->ppair->count);
+                       word(p, buf);
+                       break;
+               default:
+                       break;
+               }
+
+       /* 
+        * If we're not going to process our header children, indicate
+        * so here.
+        */

 
 

-       } else if ('[' != word[*i]) {
-               /* One-character escapes. */
-               switch (word[*i]) {
-               case ('\\'):
+       if (MDOC_HEAD == node->type) 
+               switch (type) {
+               case (MDOC_Bullet):

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case ('\''):
+               case (MDOC_Item):

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case ('`'):
+               case (MDOC_Dash):

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case ('-'):
+               case (MDOC_Hyphen):

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case ('.'):
-                       chara(p, word[*i]);
+               case (MDOC_Enum):
+                       return(0);

                default:
                        break;
                default:
                        break;

-               }
-               return;

        }
        }

-       /* n-character escapes. */
+
+       return(1);

 }
 
 
 }
 
 

+/* ARGSUSED */

 static void
 static void

-pword(struct termp *p, const char *word, size_t len)
+termp_it_post(DECL_ARGS)

 {
 {

-       size_t           i;
+       int                type;

 
 

-       assert(len > 0);
+       if (MDOC_BODY != node->type && MDOC_HEAD != node->type)
+               return;
+
+       type = arg_listtype(node->parent->parent->parent);

 
 

-       if ( ! (p->flags & TERMP_NOSPACE))
-               chara(p, ' ');
+       switch (type) {
+       case (MDOC_Diag):
+               /* FALLTHROUGH */
+       case (MDOC_Item):
+               /* FALLTHROUGH */
+       case (MDOC_Inset):
+               if (MDOC_BODY != node->type)
+                       break;
+               flushln(p);
+               break;
+       default:
+               flushln(p);
+               break;
+       }

 
 

-       p->flags &= ~TERMP_NOSPACE;
+       p->offset = pair->offset;
+       p->rmargin = pair->rmargin;
+       p->flags = pair->flag;
+}

 
 

-       if (p->flags & TERMP_BOLD)
-               style(p, STYLE_BOLD);
-       if (p->flags & TERMP_UNDERLINE)
-               style(p, STYLE_UNDERLINE);

 
 

-       for (i = 0; i < len; i++) {
-               if ('\\' == word[i]) {
-                       pescape(p, word, &i, len);
-                       continue;
-               }
-               chara(p, word[i]);
-       }
+/* ARGSUSED */
+static int
+termp_nm_pre(DECL_ARGS)
+{
+
+       if (SEC_SYNOPSIS == node->sec)
+               newln(p);
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_PROG]);
+       if (NULL == node->child)
+               word(p, meta->name);

 
 

-       if (p->flags & TERMP_BOLD ||
-                       p->flags & TERMP_UNDERLINE)
-               style(p, STYLE_CLEAR);
+       return(1);

 }
 
 
 }
 
 

-void
-word(struct termp *p, const char *word)
+/* ARGSUSED */
+static int
+termp_fl_pre(DECL_ARGS)

 {
 {

-       size_t           i, j, len;

 
 

-       if (mdoc_isdelim(word))
-               p->flags |= TERMP_NOSPACE;
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_FLAG]);
+       word(p, "\\-");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}

 
 

-       len = strlen(word);
-       assert(len > 0);

 
 

-       /* LINTED */
-       for (j = i = 0; i < len; i++) {
-               if ( ! isspace(word[i])) {
-                       j++;
-                       continue;
-               }
-               if (0 == j)
-                       continue;
-               assert(i >= j);
-               pword(p, &word[i - j], j);
-               j = 0;
-       }
-       if (j > 0) {
-               assert(i >= j);
-               pword(p, &word[i - j], j);
+/* ARGSUSED */
+static int
+termp_ar_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_ARG]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_ns_pre(DECL_ARGS)
+{
+
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_pp_pre(DECL_ARGS)
+{
+
+       vspace(p);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_st_pre(DECL_ARGS)
+{
+       const char      *cp;
+
+       if (node->child) {
+               if (MDOC_TEXT != node->child->type)
+                       errx(1, "expected text line arguments");
+               if ((cp = mdoc_a2st(node->child->string)))
+                       word(p, cp);

        }
        }

+       return(0);

 }
 
 
 }
 
 

-static void
-termprint_r(struct termp *p, const struct mdoc_meta *meta,
-               const struct mdoc_node *node)
+/* ARGSUSED */
+static int
+termp_rs_pre(DECL_ARGS)
+{
+
+       if (MDOC_BLOCK == node->type && node->prev)
+               vspace(p);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_rv_pre(DECL_ARGS)
+{
+       int              i;
+
+       if (-1 == (i = arg_getattr(MDOC_Std, node)))
+               errx(1, "expected -std argument");
+       if (1 != node->args->argv[i].sz)
+               errx(1, "expected -std argument");
+
+       newln(p);
+       word(p, "The");
+
+       p->flags |= ttypes[TTYPE_FUNC_NAME];
+       word(p, *node->args->argv[i].value);
+       p->flags &= ~ttypes[TTYPE_FUNC_NAME];
+
+               word(p, "() function returns the value 0 if successful;");
+               word(p, "otherwise the value -1 is returned and the");
+               word(p, "global variable");
+
+       p->flags |= ttypes[TTYPE_VAR_DECL];
+       word(p, "errno");
+       p->flags &= ~ttypes[TTYPE_VAR_DECL];
+
+               word(p, "is set to indicate the error.");
+
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_ex_pre(DECL_ARGS)

 {
 {

-       int              dochild;
+       int              i;

 
 

-       /* Pre-processing. */
+       if (-1 == (i = arg_getattr(MDOC_Std, node)))
+               errx(1, "expected -std argument");
+       if (1 != node->args->argv[i].sz)
+               errx(1, "expected -std argument");

 
 

-       dochild = 1;
+       word(p, "The");
+       p->flags |= ttypes[TTYPE_PROG];
+       word(p, *node->args->argv[i].value);
+       p->flags &= ~ttypes[TTYPE_PROG];
+               word(p, "utility exits 0 on success, and >0 if an error occurs.");

 
 

-       if (MDOC_TEXT != node->type) {
-               if (termacts[node->tok].pre)
-                       if ( ! (*termacts[node->tok].pre)(p, meta, node))
-                               dochild = 0;
-       } else /* MDOC_TEXT == node->type */
-               word(p, node->data.text.string);
+       return(1);
+}

 
 

-       /* Children. */

 
 

-       if (dochild && node->child)
-               termprint_r(p, meta, node->child);
+/* ARGSUSED */
+static int
+termp_nd_pre(DECL_ARGS)
+{

 
 

-       /* Post-processing. */
+       word(p, "\\-");
+       return(1);
+}

 
 

-       if (MDOC_TEXT != node->type)
-               if (termacts[node->tok].post)
-                       (*termacts[node->tok].post)(p, meta, node);

 
 

-       /* Siblings. */
+/* ARGSUSED */
+static void
+termp_bl_post(DECL_ARGS)
+{

 
 

-       if (node->next)
-               termprint_r(p, meta, node->next);
+       if (MDOC_BLOCK == node->type)
+               newln(p);

 }
 
 
 }
 
 

+/* ARGSUSED */

 static void
 static void

-termprint_footer(struct termp *p, const struct mdoc_meta *meta)
+termp_op_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type) 
+               return;
+       p->flags |= TERMP_NOSPACE;
+       word(p, "\\(rB");
+}
+
+
+/* ARGSUSED */
+static int
+termp_xr_pre(DECL_ARGS)

 {
 {

-       struct tm       *tm;
-       char            *buf, *os;
-       size_t           sz, osz, ssz, i;
+       const struct mdoc_node *n;

 
 

-       if (NULL == (buf = malloc(p->rmargin)))
-               err(1, "malloc");
-       if (NULL == (os = malloc(p->rmargin)))
-               err(1, "malloc");
+       if (NULL == (n = node->child))
+               errx(1, "expected text line argument");
+       if (MDOC_TEXT != n->type)
+               errx(1, "expected text line argument");

 
 

-       tm = localtime(&meta->date);
-       if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm))
-               err(1, "strftime");
+       word(p, n->string);

 
 

-       osz = strlcpy(os, meta->os, p->rmargin);
+       if (NULL == (n = n->next)) 
+               return(0);
+       if (MDOC_TEXT != n->type)
+               errx(1, "expected text line argument");

 
 

-       sz = strlen(buf);
-       ssz = sz + osz + 1;
+       p->flags |= TERMP_NOSPACE;
+       word(p, "(");
+       p->flags |= TERMP_NOSPACE;
+       word(p, n->string);
+       p->flags |= TERMP_NOSPACE;
+       word(p, ")");

 
 

-       if (ssz > p->rmargin) {
-               ssz -= p->rmargin;
-               assert(ssz <= osz);
-               os[osz - ssz] = 0;
-               ssz = 1;
-       } else
-               ssz = p->rmargin - ssz + 1;
+       return(0);
+}

 
 

-       printf("\n");
-       printf("%s", os);
-       for (i = 0; i < ssz; i++)
-               printf(" ");

 
 

-       printf("%s\n", buf);
-       fflush(stdout);
+/* ARGSUSED */
+static int
+termp_vt_pre(DECL_ARGS)
+{

 
 

-       free(buf);
-       free(os);
+       /* FIXME: this can be "type name". */
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_VAR_DECL]);
+       return(1);

 }
 
 
 }
 
 

+/* ARGSUSED */

 static void
 static void

-termprint_header(struct termp *p, const struct mdoc_meta *meta)
+termp_vt_post(DECL_ARGS)

 {
 {

-       char            *buf, *title;
-       const char      *pp, *msec;
-       size_t           ssz, tsz, ttsz, i;;

 
 

-       if (NULL == (buf = malloc(p->rmargin)))
-               err(1, "malloc");
-       if (NULL == (title = malloc(p->rmargin)))
-               err(1, "malloc");
+       if (node->sec == SEC_SYNOPSIS)
+               vspace(p);
+}

 
 

-       if (NULL == (pp = mdoc_vol2a(meta->vol)))
-               switch (meta->msec) {
-               case (MSEC_1):
-                       /* FALLTHROUGH */
-               case (MSEC_6):
-                       /* FALLTHROUGH */
-               case (MSEC_7):
-                       pp = mdoc_vol2a(VOL_URM);
-                       break;
-               case (MSEC_8):
-                       pp = mdoc_vol2a(VOL_SMM);
-                       break;
-               case (MSEC_2):
-                       /* FALLTHROUGH */
-               case (MSEC_3):
-                       /* FALLTHROUGH */
-               case (MSEC_4):
-                       /* FALLTHROUGH */
-               case (MSEC_5):
-                       pp = mdoc_vol2a(VOL_PRM);
-                       break;
-               case (MSEC_9):
-                       pp = mdoc_vol2a(VOL_KM);
-                       break;
-               default:
-                       /* FIXME: capitalise. */
-                       if (NULL == (pp = mdoc_msec2a(meta->msec)))
-                               pp = mdoc_msec2a(MSEC_local);
-                       break;
-               }
-       assert(pp);
-
-       tsz = strlcpy(buf, pp, p->rmargin);
-       assert(tsz < p->rmargin);
-
-       if ((pp = mdoc_arch2a(meta->arch))) {
-               tsz = strlcat(buf, " (", p->rmargin);
-               assert(tsz < p->rmargin);
-               tsz = strlcat(buf, pp, p->rmargin);
-               assert(tsz < p->rmargin);
-               tsz = strlcat(buf, ")", p->rmargin);
-               assert(tsz < p->rmargin);
-       }

 
 

-       ttsz = strlcpy(title, meta->title, p->rmargin);
+/* ARGSUSED */
+static int
+termp_fd_pre(DECL_ARGS)
+{
+
+       /* 
+        * FIXME: this naming is bad.  This value is used, in general,
+        * for the #include header or other preprocessor statement.
+        */
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_DECL]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_fd_post(DECL_ARGS)
+{
+
+       if (node->sec != SEC_SYNOPSIS)
+               return;
+       newln(p);
+       if (node->next && MDOC_Fd != node->next->tok)
+               vspace(p);
+}

 
 

-       if (NULL == (msec = mdoc_msec2a(meta->msec)))
-               msec = "";

 
 

-       ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2;
+/* ARGSUSED */
+static int
+termp_sh_pre(DECL_ARGS)
+{

 
 

-       if (ssz > p->rmargin) {
-               if ((ssz -= p->rmargin) % 2)
-                       ssz++;
-               ssz /= 2;
-       
-               assert(ssz <= ttsz);
-               title[ttsz - ssz] = 0;
-               ssz = 1;
-       } else
-               ssz = ((p->rmargin - ssz) / 2) + 1;
+       switch (node->type) {
+       case (MDOC_HEAD):
+               vspace(p);
+               TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SECTION]);
+               break;
+       case (MDOC_BODY):
+               p->offset = INDENT;
+               break;
+       default:
+               break;
+       }
+       return(1);
+}

 
 

-       printf("%s(%s)", title, msec);

 
 

-       for (i = 0; i < ssz; i++)
-               printf(" ");
+/* ARGSUSED */
+static void
+termp_sh_post(DECL_ARGS)
+{

 
 

-       printf("%s", buf);
+       switch (node->type) {
+       case (MDOC_HEAD):
+               newln(p);
+               break;
+       case (MDOC_BODY):
+               newln(p);
+               p->offset = 0;
+               break;
+       default:
+               break;
+       }
+}

 
 

-       for (i = 0; i < ssz; i++)
-               printf(" ");

 
 

-       printf("%s(%s)\n", title, msec);
-       fflush(stdout);
+/* ARGSUSED */
+static int
+termp_op_pre(DECL_ARGS)
+{

 
 

-       free(title);
-       free(buf);
+       switch (node->type) {
+       case (MDOC_BODY):
+               word(p, "\\(lB");
+               p->flags |= TERMP_NOSPACE;
+               break;
+       default:
+               break;
+       }
+       return(1);

 }
 
 
 }
 
 

-void
-termprint(const struct mdoc_node *node,
-               const struct mdoc_meta *meta)
+/* ARGSUSED */
+static int
+termp_bt_pre(DECL_ARGS)

 {
 {

-       struct termp     p;

 
 

-       p.maxrmargin = 80; /* XXX */
-       p.rmargin = p.maxrmargin;
-       p.maxcols = 1024;
-       p.offset = p.col = 0;
-       p.flags = TERMP_NOSPACE;
+       word(p, "is currently in beta test.");
+       return(1);
+}

 
 

-       if (NULL == (p.buf = malloc(p.maxcols)))
-               err(1, "malloc");

 
 

-       termprint_header(&p, meta);
-       termprint_r(&p, meta, node);
-       termprint_footer(&p, meta);
+/* ARGSUSED */
+static void
+termp_lb_post(DECL_ARGS)
+{

 
 

-       free(p.buf);
+       newln(p);

 }
 
 
 }
 
 

+/* ARGSUSED */
+static int
+termp_ud_pre(DECL_ARGS)
+{
+
+       word(p, "currently under development.");
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_d1_pre(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return(1);
+       newln(p);
+       p->offset += (pair->offset = INDENT);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_d1_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type) 
+               return;
+       newln(p);
+       p->offset -= pair->offset;
+}
+
+
+/* ARGSUSED */
+static int
+termp_aq_pre(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return(1);
+       word(p, "\\(la");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_aq_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return;
+       p->flags |= TERMP_NOSPACE;
+       word(p, "\\(ra");
+}
+
+
+/* ARGSUSED */
+static int
+termp_ft_pre(DECL_ARGS)
+{
+
+       if (SEC_SYNOPSIS == node->sec)
+               if (node->prev && MDOC_Fo == node->prev->tok)
+                       vspace(p);
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_TYPE]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_ft_post(DECL_ARGS)
+{
+
+       if (SEC_SYNOPSIS == node->sec)
+               newln(p);
+}
+
+
+/* ARGSUSED */
+static int
+termp_fn_pre(DECL_ARGS)
+{
+       const struct mdoc_node *n;
+
+       if (NULL == node->child)
+               errx(1, "expected text line arguments");
+       if (MDOC_TEXT != node->child->type)
+               errx(1, "expected text line arguments");
+
+       /* FIXME: can be "type funcname" "type varname"... */
+
+       p->flags |= ttypes[TTYPE_FUNC_NAME];
+       word(p, node->child->string);
+       p->flags &= ~ttypes[TTYPE_FUNC_NAME];
+
+       word(p, "(");
+
+       p->flags |= TERMP_NOSPACE;
+       for (n = node->child->next; n; n = n->next) {
+               if (MDOC_TEXT != n->type)
+                       errx(1, "expected text line arguments");
+               p->flags |= ttypes[TTYPE_FUNC_ARG];
+               word(p, n->string);
+               p->flags &= ~ttypes[TTYPE_FUNC_ARG];
+               if (n->next)
+                       word(p, ",");
+       }
+
+       word(p, ")");
+
+       if (SEC_SYNOPSIS == node->sec)
+               word(p, ";");
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static void
+termp_fn_post(DECL_ARGS)
+{
+
+       if (node->sec == SEC_SYNOPSIS && node->next)
+               vspace(p);
+
+}
+
+
+/* ARGSUSED */
+static int
+termp_sx_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_LINK]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_fa_pre(DECL_ARGS)
+{
+       struct mdoc_node *n;
+
+       if (node->parent->tok != MDOC_Fo) {
+               TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_ARG]);
+               return(1);
+       }
+
+       for (n = node->child; n; n = n->next) {
+               if (MDOC_TEXT != n->type)
+                       errx(1, "expected text line arguments");
+
+               p->flags |= ttypes[TTYPE_FUNC_ARG];
+               word(p, n->string);
+               p->flags &= ~ttypes[TTYPE_FUNC_ARG];
+
+               if (n->next)
+                       word(p, ",");
+       }
+
+       if (node->next && node->next->tok == MDOC_Fa)
+               word(p, ",");
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static int
+termp_va_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_VAR_DECL]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_bd_pre(DECL_ARGS)
+{
+       const struct mdoc_node  *n;
+       int                      i, type;
+
+       if (MDOC_BLOCK == node->type) {
+               if (node->prev)
+                       vspace(p);
+               return(1);
+       } else if (MDOC_BODY != node->type)
+               return(1);
+
+       if (NULL == node->parent->args)
+               errx(1, "missing display type");
+
+       pair->offset = p->offset;
+
+       for (type = -1, i = 0; 
+                       i < (int)node->parent->args->argc; i++) {
+               switch (node->parent->args->argv[i].arg) {
+               case (MDOC_Ragged):
+                       /* FALLTHROUGH */
+               case (MDOC_Filled):
+                       /* FALLTHROUGH */
+               case (MDOC_Unfilled):
+                       /* FALLTHROUGH */
+               case (MDOC_Literal):
+                       type = node->parent->args->argv[i].arg;
+                       i = (int)node->parent->args->argc;
+                       break;
+               default:
+                       break;
+               }
+       }
+
+       if (NULL == node->parent->args)
+               errx(1, "missing display type");
+
+       i = arg_getattr(MDOC_Offset, node->parent);
+       if (-1 != i) {
+               if (1 != node->parent->args->argv[i].sz)
+                       errx(1, "expected single value");
+               p->offset += arg_offset(&node->parent->args->argv[i]);
+       }
+
+       switch (type) {
+       case (MDOC_Literal):
+               /* FALLTHROUGH */
+       case (MDOC_Unfilled):
+               break;
+       default:
+               return(1);
+       }
+
+       p->flags |= TERMP_LITERAL;
+
+       for (n = node->child; n; n = n->next) {
+               if (MDOC_TEXT != n->type) {
+                       warnx("non-text children not yet allowed");
+                       continue;
+               }
+               word(p, n->string);
+               flushln(p);
+       }
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static void
+termp_bd_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type) 
+               return;
+
+       if ( ! (p->flags & TERMP_LITERAL))
+               flushln(p);
+
+       p->flags &= ~TERMP_LITERAL;
+       p->offset = pair->offset;
+}
+
+
+/* ARGSUSED */
+static int
+termp_qq_pre(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return(1);
+       word(p, "\"");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_qq_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return;
+       p->flags |= TERMP_NOSPACE;
+       word(p, "\"");
+}
+
+
+/* ARGSUSED */
+static int
+termp_bsx_pre(DECL_ARGS)
+{
+
+       word(p, "BSDI BSD/OS");
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_bx_post(DECL_ARGS)
+{
+
+       if (node->child)
+               p->flags |= TERMP_NOSPACE;
+       word(p, "BSD");
+}
+
+
+/* ARGSUSED */
+static int
+termp_ox_pre(DECL_ARGS)
+{
+
+       word(p, "OpenBSD");
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_ux_pre(DECL_ARGS)
+{
+
+       word(p, "UNIX");
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_fx_pre(DECL_ARGS)
+{
+
+       word(p, "FreeBSD");
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_nx_pre(DECL_ARGS)
+{
+
+       word(p, "NetBSD");
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_sq_pre(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return(1);
+       word(p, "`");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_sq_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return;
+       p->flags |= TERMP_NOSPACE;
+       word(p, "\'");
+}
+
+
+/* ARGSUSED */
+static int
+termp_pf_pre(DECL_ARGS)
+{
+
+       p->flags |= TERMP_IGNDELIM;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_pf_post(DECL_ARGS)
+{
+
+       p->flags &= ~TERMP_IGNDELIM;
+       p->flags |= TERMP_NOSPACE;
+}
+
+
+/* ARGSUSED */
+static int
+termp_ss_pre(DECL_ARGS)
+{
+
+       switch (node->type) {
+       case (MDOC_HEAD):
+               vspace(p);
+               TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SSECTION]);
+               p->offset = INDENT / 2;
+               break;
+       default:
+               break;
+       }
+
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_ss_post(DECL_ARGS)
+{
+
+       switch (node->type) {
+       case (MDOC_HEAD):
+               newln(p);
+               p->offset = INDENT;
+               break;
+       default:
+               break;
+       }
+}
+
+
+/* ARGSUSED */
+static int
+termp_pa_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FILE]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_em_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_cd_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CONFIG]);
+       newln(p);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_cm_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD_FLAG]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_ic_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_CMD]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_in_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_INCLUDE]);
+       word(p, "#include");
+       word(p, "<");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_in_post(DECL_ARGS)
+{
+
+       p->flags |= TERMP_NOSPACE;
+       word(p, ">");
+
+       newln(p);
+       if (SEC_SYNOPSIS != node->sec)
+               return;
+       if (node->next && MDOC_In != node->next->tok)
+               vspace(p);
+}
+
+
+/* ARGSUSED */
+static int
+termp_at_pre(DECL_ARGS)
+{
+       const char      *att;
+
+       att = NULL;
+
+       if (node->child) {
+               if (MDOC_TEXT != node->child->type)
+                       errx(1, "expected text line argument");
+               att = mdoc_a2att(node->child->string);
+       }
+
+       if (NULL == att)
+               att = "AT&T UNIX";
+
+       word(p, att);
+       return(0);
+}
+
+
+/* ARGSUSED */
+static int
+termp_bq_pre(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return(1);
+       word(p, "[");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_bq_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return;
+       word(p, "]");
+}
+
+
+/* ARGSUSED */
+static int
+termp_pq_pre(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return(1);
+       word(p, "\\&(");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_pq_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return;
+       word(p, ")");
+}
+
+
+/* ARGSUSED */
+static int
+termp_fo_pre(DECL_ARGS)
+{
+       const struct mdoc_node *n;
+
+       if (MDOC_BODY == node->type) {
+               word(p, "(");
+               p->flags |= TERMP_NOSPACE;
+               return(1);
+       } else if (MDOC_HEAD != node->type) 
+               return(1);
+
+       /* XXX - groff shows only first parameter */
+
+       p->flags |= ttypes[TTYPE_FUNC_NAME];
+       for (n = node->child; n; n = n->next) {
+               if (MDOC_TEXT != n->type)
+                       errx(1, "expected text line argument");
+               word(p, n->string);
+       }
+       p->flags &= ~ttypes[TTYPE_FUNC_NAME];
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static void
+termp_fo_post(DECL_ARGS)
+{
+
+       if (MDOC_BODY != node->type)
+               return;
+       word(p, ")");
+       word(p, ";");
+       newln(p);
+}
+
+
+/* ARGSUSED */
+static int
+termp_bf_pre(DECL_ARGS)
+{
+       const struct mdoc_node  *n;
+
+       if (MDOC_HEAD == node->type) {
+               return(0);
+       } else if (MDOC_BLOCK != node->type)
+               return(1);
+
+       if (NULL == (n = node->head->child)) {
+               if (arg_hasattr(MDOC_Emphasis, node))
+                       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]);
+               else if (arg_hasattr(MDOC_Symbolic, node))
+                       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SYMB]);
+
+               return(1);
+       } 
+
+       if (MDOC_TEXT != n->type)
+               errx(1, "expected text line arguments");
+
+       if (0 == strcmp("Em", n->string))
+               TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]);
+       else if (0 == strcmp("Sy", n->string))
+               TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_EMPH]);
+
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_sy_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SYMB]);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_ms_pre(DECL_ARGS)
+{
+
+       TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_SYMBOL]);
+       return(1);
+}
+
+
+
+/* ARGSUSED */
+static int
+termp_sm_pre(DECL_ARGS)
+{
+
+#if notyet
+       assert(node->child);
+       if (0 == strcmp("off", node->child->data.text.string)) {
+               p->flags &= ~TERMP_NONOSPACE;
+               p->flags &= ~TERMP_NOSPACE;
+       } else {
+               p->flags |= TERMP_NONOSPACE;
+               p->flags |= TERMP_NOSPACE;
+       }
+#endif
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static int
+termp__t_pre(DECL_ARGS)
+{
+
+       /* FIXME: titles are underlined. */
+       word(p, "\"");
+       p->flags |= TERMP_NOSPACE;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp__t_post(DECL_ARGS)
+{
+
+       p->flags |= TERMP_NOSPACE;
+       /* FIXME: titles are underlined. */
+       word(p, "\"");
+       word(p, node->next ? "," : ".");
+}
+
+
+/* ARGSUSED */
+static void
+termp____post(DECL_ARGS)
+{
+
+       p->flags |= TERMP_NOSPACE;
+       word(p, node->next ? "," : ".");
+}