Correct an embarrassing spelling mistake:

[mandoc.git] / mdoc_man.c

diff --git a/mdoc_man.c b/mdoc_man.c
index 2e8f02ae56f2984eaf1aa7ed08dbdc071adee6c2..d7b42facddb57953f41349e21a9b9b37fce05ff8 100644 (file)
--- a/mdoc_man.c
+++ b/mdoc_man.c
@@ -1,6 +1,6 @@
-/*     $Id: mdoc_man.c,v 1.132 2019/01/04 03:17:36 schwarze Exp $ */
+/*     $Id: mdoc_man.c,v 1.136 2020/02/27 01:43:52 schwarze Exp $ */
 /*
- * Copyright (c) 2011-2019 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011-2020 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
@@ -113,7 +113,7 @@ static      int       pre_sm(DECL_ARGS);
 static void      pre_sp(DECL_ARGS);
 static int       pre_sect(DECL_ARGS);
 static int       pre_sy(DECL_ARGS);
-static void      pre_syn(const struct roff_node *);
+static void      pre_syn(struct roff_node *);
 static void      pre_ta(DECL_ARGS);
 static int       pre_vt(DECL_ARGS);
 static int       pre_xr(DECL_ARGS);
@@ -262,6 +262,7 @@ static const struct mdoc_man_act mdoc_man_acts[MDOC_MAX - MDOC_Dd] = {
        { NULL, NULL, post_percent, NULL, NULL }, /* %Q */
        { NULL, NULL, post_percent, NULL, NULL }, /* %U */
        { NULL, NULL, NULL, NULL, NULL }, /* Ta */
+       { NULL, pre_skip, NULL, NULL, NULL }, /* Tg */
 };
 static const struct mdoc_man_act *mdoc_man_act(enum roff_tok);
 
@@ -582,9 +583,9 @@ print_width(const struct mdoc_bl *bl, const struct roff_node *child)
 
        /* Set up the current list. */
        if (chsz > sz && bl->type != LIST_tag)
-               print_block(".HP", 0);
+               print_block(".HP", MMAN_spc);
        else {
-               print_block(".TP", 0);
+               print_block(".TP", MMAN_spc);
                remain = sz + 2;
        }
        if (numeric) {
@@ -649,7 +650,9 @@ print_node(DECL_ARGS)
         * Break the line if we were parsed subsequent the current node.
         * This makes the page structure be more consistent.
         */
-       if (MMAN_spc & outflags && NODE_LINE & n->flags)
+       if (outflags & MMAN_spc &&
+           n->flags & NODE_LINE &&
+           !roff_node_transparent(n))
                outflags |= MMAN_nl;
 
        act = NULL;
@@ -776,13 +779,20 @@ post_font(DECL_ARGS)
 static void
 post_percent(DECL_ARGS)
 {
+       struct roff_node *np, *nn, *nnn;
 
        if (mdoc_man_act(n->tok)->pre == pre_em)
                font_pop();
-       if (n->next) {
-               print_word(",");
-               if (n->prev &&  n->prev->tok == n->tok &&
-                               n->next->tok == n->tok)
+
+       if ((nn = roff_node_next(n)) != NULL) {
+               np = roff_node_prev(n);
+               nnn = nn == NULL ? NULL : roff_node_next(nn);
+               if (nn->tok != n->tok ||
+                   (np != NULL && np->tok == n->tok) ||
+                   (nnn != NULL && nnn->tok == n->tok))
+                       print_word(",");
+               if (nn->tok == n->tok &&
+                   (nnn == NULL || nnn->tok != n->tok))
                        print_word("and");
        } else {
                print_word(".");
@@ -850,13 +860,15 @@ post_sect(DECL_ARGS)
 
 /* See mdoc_term.c, synopsis_pre() for comments. */
 static void
-pre_syn(const struct roff_node *n)
+pre_syn(struct roff_node *n)
 {
+       struct roff_node *np;
 
-       if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
+       if ((n->flags & NODE_SYNPRETTY) == 0 ||
+           (np = roff_node_prev(n)) == NULL)
                return;
 
-       if (n->prev->tok == n->tok &&
+       if (np->tok == n->tok &&
            MDOC_Ft != n->tok &&
            MDOC_Fo != n->tok &&
            MDOC_Fn != n->tok) {
@@ -864,7 +876,7 @@ pre_syn(const struct roff_node *n)
                return;
        }
 
-       switch (n->prev->tok) {
+       switch (np->tok) {
        case MDOC_Fd:
        case MDOC_Fn:
        case MDOC_Fo:
@@ -940,11 +952,10 @@ static int
 pre_bd(DECL_ARGS)
 {
        outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
-
-       if (DISP_unfilled == n->norm->Bd.type ||
-           DISP_literal  == n->norm->Bd.type)
+       if (n->norm->Bd.type == DISP_unfilled ||
+           n->norm->Bd.type == DISP_literal)
                print_line(".nf", 0);
-       if (0 == n->norm->Bd.comp && NULL != n->parent->prev)
+       if (n->norm->Bd.comp == 0 && roff_node_prev(n->parent) != NULL)
                outflags |= MMAN_sp;
        print_offs(n->norm->Bd.offs, 1);
        return 1;
@@ -976,7 +987,7 @@ post_bd(DECL_ARGS)
        }
 
        /* Maybe we are inside an enclosing list? */
-       if (NULL != n->parent->next)
+       if (roff_node_next(n->parent) != NULL)
                mid_it();
 }
 
@@ -1101,16 +1112,15 @@ post_bl(DECL_ARGS)
                print_line(".RE", MMAN_nl);
                assert(Bl_stack_len);
                Bl_stack_len--;
-               assert(0 == Bl_stack[Bl_stack_len]);
+               assert(Bl_stack[Bl_stack_len] == 0);
        } else {
                outflags |= MMAN_PP | MMAN_nl;
                outflags &= ~(MMAN_sp | MMAN_br);
        }
 
        /* Maybe we are inside an enclosing list? */
-       if (NULL != n->parent->next)
+       if (roff_node_next(n->parent) != NULL)
                mid_it();
-
 }
 
 static void
@@ -1122,7 +1132,6 @@ pre_br(DECL_ARGS)
 static int
 pre_dl(DECL_ARGS)
 {
-
        print_offs("6n", 0);
        return 1;
 }
@@ -1130,11 +1139,10 @@ pre_dl(DECL_ARGS)
 static void
 post_dl(DECL_ARGS)
 {
-
        print_line(".RE", MMAN_nl);
 
        /* Maybe we are inside an enclosing list? */
-       if (NULL != n->parent->next)
+       if (roff_node_next(n->parent) != NULL)
                mid_it();
 }
 
@@ -1235,15 +1243,15 @@ pre_fa(DECL_ARGS)
 static void
 post_fa(DECL_ARGS)
 {
+       struct roff_node *nn;
 
-       if (NULL != n->next && MDOC_Fa == n->next->tok)
+       if ((nn = roff_node_next(n)) != NULL && nn->tok == MDOC_Fa)
                print_word(",");
 }
 
 static int
 pre_fd(DECL_ARGS)
 {
-
        pre_syn(n);
        font_push('B');
        return 1;
@@ -1252,7 +1260,6 @@ pre_fd(DECL_ARGS)
 static void
 post_fd(DECL_ARGS)
 {
-
        font_pop();
        outflags |= MMAN_br;
 }
@@ -1260,7 +1267,6 @@ post_fd(DECL_ARGS)
 static int
 pre_fl(DECL_ARGS)
 {
-
        font_push('B');
        print_word("\\-");
        if (n->child != NULL)
@@ -1271,12 +1277,13 @@ pre_fl(DECL_ARGS)
 static void
 post_fl(DECL_ARGS)
 {
+       struct roff_node *nn;
 
        font_pop();
-       if (!(n->child != NULL ||
-           n->next == NULL ||
-           n->next->type == ROFFT_TEXT ||
-           n->next->flags & NODE_LINE))
+       if (n->child == NULL &&
+           ((nn = roff_node_next(n)) != NULL &&
+           nn->type != ROFFT_TEXT &&
+           (nn->flags & NODE_LINE) == 0))
                outflags &= ~MMAN_spc;
 }
 
@@ -1419,9 +1426,9 @@ pre_it(DECL_ARGS)
        case ROFFT_HEAD:
                outflags |= MMAN_PP | MMAN_nl;
                bln = n->parent->parent;
-               if (0 == bln->norm->Bl.comp ||
-                   (NULL == n->parent->prev &&
-                    NULL == bln->parent->prev))
+               if (bln->norm->Bl.comp == 0 ||
+                   (n->parent->prev == NULL &&
+                    roff_node_prev(bln->parent) == NULL))
                        outflags |= MMAN_sp;
                outflags &= ~MMAN_br;
                switch (bln->norm->Bl.type) {
@@ -1633,17 +1640,22 @@ pre_nm(DECL_ARGS)
 {
        char    *name;
 
-       if (n->type == ROFFT_BLOCK) {
+       switch (n->type) {
+       case ROFFT_BLOCK:
                outflags |= MMAN_Bk;
                pre_syn(n);
-       }
-       if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD)
                return 1;
+       case ROFFT_HEAD:
+       case ROFFT_ELEM:
+               break;
+       default:
+               return 1;
+       }
        name = n->child == NULL ? NULL : n->child->string;
-       if (NULL == name)
+       if (name == NULL)
                return 0;
        if (n->type == ROFFT_HEAD) {
-               if (NULL == n->parent->prev)
+               if (roff_node_prev(n->parent) == NULL)
                        outflags |= MMAN_sp;
                print_block(".HP", 0);
                printf(" %dn", man_strlen(name) + 1);