`Sm' no longer produces a linebreak when used in `Bd'.

[mandoc.git] / man_term.c

diff --git a/man_term.c b/man_term.c
index 9b7cb7eafa2e6c521f946332c3c05c2ac3111541..f9a02fda594ebd619bfbc5d363b7c7e182e1f880 100644 (file)
--- a/man_term.c
+++ b/man_term.c
@@ -1,4 +1,4 @@
-/*     $Id: man_term.c,v 1.82 2010/07/22 13:47:50 kristaps Exp $ */
+/*     $Id: man_term.c,v 1.85 2010/09/15 14:36:16 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -92,9 +92,9 @@ static        int               pre_RS(DECL_ARGS);
 static int               pre_SH(DECL_ARGS);
 static int               pre_SS(DECL_ARGS);
 static int               pre_TP(DECL_ARGS);
-static int               pre_fi(DECL_ARGS);
 static int               pre_ign(DECL_ARGS);
-static int               pre_nf(DECL_ARGS);
+static int               pre_in(DECL_ARGS);
+static int               pre_literal(DECL_ARGS);
 static int               pre_sp(DECL_ARGS);
 
 static void              post_IP(DECL_ARGS);
@@ -129,8 +129,8 @@ static      const struct termact termacts[MAN_MAX] = {
        { NULL, NULL, MAN_NOTEXT }, /* na */
        { pre_I, NULL, 0 }, /* i */
        { pre_sp, NULL, MAN_NOTEXT }, /* sp */
-       { pre_nf, NULL, 0 }, /* nf */
-       { pre_fi, NULL, 0 }, /* fi */
+       { pre_literal, NULL, 0 }, /* nf */
+       { pre_literal, NULL, 0 }, /* fi */
        { NULL, NULL, 0 }, /* r */
        { NULL, NULL, 0 }, /* RE */
        { pre_RS, post_RS, 0 }, /* RS */
@@ -138,9 +138,10 @@ static     const struct termact termacts[MAN_MAX] = {
        { pre_ign, NULL, 0 }, /* UC */
        { pre_ign, NULL, 0 }, /* PD */
        { pre_sp, NULL, MAN_NOTEXT }, /* Sp */
-       { pre_nf, NULL, 0 }, /* Vb */
-       { pre_fi, NULL, 0 }, /* Ve */
+       { pre_literal, NULL, 0 }, /* Vb */
+       { pre_literal, NULL, 0 }, /* Ve */
        { pre_ign, NULL, 0 }, /* AT */
+       { pre_in, NULL, MAN_NOTEXT }, /* in */
 };
 
 
@@ -248,25 +249,25 @@ pre_I(DECL_ARGS)
 
 /* ARGSUSED */
 static int
-pre_fi(DECL_ARGS)
+pre_literal(DECL_ARGS)
 {
 
        term_newln(p);
-       mt->fl &= ~MANT_LITERAL;
+       switch (n->tok) {
+       case (MAN_Vb):
+               /* FALLTHROUGH */
+       case (MAN_nf):
+               mt->fl |= MANT_LITERAL;
+               return(MAN_Vb != n->tok);
+       default:
+               mt->fl &= ~MANT_LITERAL;
+               break;
+       }
+
        return(1);
 }
 
 
-/* ARGSUSED */
-static int
-pre_nf(DECL_ARGS)
-{
-
-       term_newln(p);
-       mt->fl |= MANT_LITERAL;
-       return(MAN_Vb != n->tok);
-}
-
 
 /* ARGSUSED */
 static int
@@ -352,6 +353,47 @@ pre_B(DECL_ARGS)
 }
 
 
+/* ARGSUSED */
+static int
+pre_in(DECL_ARGS)
+{
+       int              len, less;
+       size_t           v;
+       const char      *cp;
+
+       term_newln(p);
+
+       if (NULL == n->child) {
+               p->offset = mt->offset;
+               return(0);
+       }
+
+       cp = n->child->string;
+       less = 0;
+
+       if ('-' == *cp)
+               less = -1;
+       else if ('+' == *cp)
+               less = 1;
+       else
+               cp--;
+
+       if ((len = a2width(p, ++cp)) < 0)
+               return(0);
+
+       v = (size_t)len;
+
+       if (less < 0)
+               p->offset -= p->offset > v ? v : p->offset;
+       else if (less > 0)
+               p->offset += v;
+       else 
+               p->offset = v;
+
+       return(0);
+}
+
+
 /* ARGSUSED */
 static int
 pre_sp(DECL_ARGS)
@@ -874,6 +916,10 @@ print_man_foot(struct termp *p, const void *arg)
        p->rmargin = p->maxrmargin - term_strlen(p, buf);
        p->offset = 0;
 
+       /* term_strlen() can return zero. */
+       if (p->rmargin == p->maxrmargin)
+               p->rmargin--;
+
        if (meta->source)
                term_word(p, meta->source);
        if (meta->source)