Simplify the roff(7) .ce and .rj terminal formatter by using the

[mandoc.git] / mdoc_man.c

diff --git a/mdoc_man.c b/mdoc_man.c
index f3689dfc07c6aee5819942a74981cb6ef67951bc..2e8f02ae56f2984eaf1aa7ed08dbdc071adee6c2 100644 (file)
--- a/mdoc_man.c
+++ b/mdoc_man.c
@@ -1,6 +1,6 @@
-/*     $Id: mdoc_man.c,v 1.129 2018/12/03 21:00:10 schwarze Exp $ */
+/*     $Id: mdoc_man.c,v 1.132 2019/01/04 03:17:36 schwarze Exp $ */
 /*
- * Copyright (c) 2011-2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011-2019 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -104,6 +104,7 @@ static      int       pre_lk(DECL_ARGS);
 static int       pre_li(DECL_ARGS);
 static int       pre_nm(DECL_ARGS);
 static int       pre_no(DECL_ARGS);
+static void      pre_noarg(DECL_ARGS);
 static int       pre_ns(DECL_ARGS);
 static void      pre_onearg(DECL_ARGS);
 static int       pre_pp(DECL_ARGS);
@@ -128,9 +129,11 @@ static     void      print_node(DECL_ARGS);
 static const void_fp roff_man_acts[ROFF_MAX] = {
        pre_br,         /* br */
        pre_onearg,     /* ce */
+       pre_noarg,      /* fi */
        pre_ft,         /* ft */
        pre_onearg,     /* ll */
        pre_onearg,     /* mc */
+       pre_noarg,      /* nf */
        pre_onearg,     /* po */
        pre_onearg,     /* rj */
        pre_sp,         /* sp */
@@ -325,6 +328,7 @@ man_strlen(const char *cp)
                case ESCAPE_UNICODE:
                case ESCAPE_NUMBERED:
                case ESCAPE_SPECIAL:
+               case ESCAPE_UNDEF:
                case ESCAPE_OVERSTRIKE:
                        if (skip)
                                skip = 0;
@@ -601,7 +605,7 @@ print_count(int *count)
 }
 
 void
-man_mdoc(void *arg, const struct roff_man *mdoc)
+man_mdoc(void *arg, const struct roff_meta *mdoc)
 {
        struct roff_node *n;
 
@@ -614,9 +618,8 @@ man_mdoc(void *arg, const struct roff_man *mdoc)
        }
 
        printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n",
-           mdoc->meta.title,
-           (mdoc->meta.msec == NULL ? "" : mdoc->meta.msec),
-           mdoc->meta.date, mdoc->meta.os, mdoc->meta.vol);
+           mdoc->title, (mdoc->msec == NULL ? "" : mdoc->msec),
+           mdoc->date, mdoc->os, mdoc->vol);
 
        /* Disable hyphenation and if nroff, disable justification. */
        printf(".nh\n.if n .ad l");
@@ -628,7 +631,7 @@ man_mdoc(void *arg, const struct roff_man *mdoc)
                *fontqueue.tail = 'R';
        }
        for (; n != NULL; n = n->next)
-               print_node(&mdoc->meta, n);
+               print_node(mdoc, n);
        putchar('\n');
 }
 
@@ -936,7 +939,6 @@ post_aq(DECL_ARGS)
 static int
 pre_bd(DECL_ARGS)
 {
-
        outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
 
        if (DISP_unfilled == n->norm->Bd.type ||
@@ -951,12 +953,27 @@ pre_bd(DECL_ARGS)
 static void
 post_bd(DECL_ARGS)
 {
+       enum roff_tok    bef, now;
 
        /* Close out this display. */
        print_line(".RE", MMAN_nl);
-       if (DISP_unfilled == n->norm->Bd.type ||
-           DISP_literal  == n->norm->Bd.type)
-               print_line(".fi", MMAN_nl);
+       bef = n->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi;
+       if (n->last == NULL)
+               now = n->norm->Bd.type == DISP_unfilled ||
+                   n->norm->Bd.type == DISP_literal ? ROFF_nf : ROFF_fi;
+       else if (n->last->tok == ROFF_nf)
+               now = ROFF_nf;
+       else if (n->last->tok == ROFF_fi)
+               now = ROFF_fi;
+       else
+               now = n->last->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi;
+       if (bef != now) {
+               outflags |= MMAN_nl;
+               print_word(".");
+               outflags &= ~MMAN_spc;
+               print_word(roff_name[bef]);
+               outflags |= MMAN_nl;
+       }
 
        /* Maybe we are inside an enclosing list? */
        if (NULL != n->parent->next)
@@ -1607,7 +1624,6 @@ pre_onearg(DECL_ARGS)
 static int
 pre_li(DECL_ARGS)
 {
-
        font_push('R');
        return 1;
 }
@@ -1640,7 +1656,6 @@ pre_nm(DECL_ARGS)
 static void
 post_nm(DECL_ARGS)
 {
-
        switch (n->type) {
        case ROFFT_BLOCK:
                outflags &= ~MMAN_Bk;
@@ -1658,15 +1673,23 @@ post_nm(DECL_ARGS)
 static int
 pre_no(DECL_ARGS)
 {
-
        outflags |= MMAN_spc_force;
        return 1;
 }
 
+static void
+pre_noarg(DECL_ARGS)
+{
+       outflags |= MMAN_nl;
+       print_word(".");
+       outflags &= ~MMAN_spc;
+       print_word(roff_name[n->tok]);
+       outflags |= MMAN_nl;
+}
+
 static int
 pre_ns(DECL_ARGS)
 {
-
        outflags &= ~MMAN_spc;
        return 0;
 }