[bug #55136] [PATCH] s.tmac: Check the closure of the .DS macro (display)

[Bjarni Ingi Gislason]

URL:
  <https://savannah.gnu.org/bugs/?55136>

                 Summary: [PATCH] s.tmac: Check the closure of the .DS macro
(display)
                 Project: GNU troff
            Submitted by: bjarniig
            Submitted on: Thu 29 Nov 2018 09:53:49 PM UTC
                Category: Macro - ms
                Severity: 3 - Normal
              Item Group: New feature
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

    _______________________________________________________

Details:

>From 8047d1a28f564663fe397839c305f3b5e03a21dc Mon Sep 17 00:00:00 2001
From: Bjarni Ingi Gislason <address@hidden>
Date: Thu, 29 Nov 2018 21:28:00 +0000
Subject: [PATCH] s.tmac: Check the closure of the .DS macro (display)

  If the display macro is not properly ended, its content doesn't go to
the output.

  Aborting is necessary to avoid missing pieces of text in the output.

Signed-off-by: Bjarni Ingi Gislason <address@hidden>
---
 tmac/s.tmac | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tmac/s.tmac b/tmac/s.tmac
index 6dda23b7..5737dfd3 100644
--- a/tmac/s.tmac
+++ b/tmac/s.tmac
@@ -965,6 +965,14 @@ along with this program.  If not, see
<http://www.gnu.org/licenses/>.
 .el address@hidden \\$0: mismatched DE
 ..
 .de DS
+.\" Check if an earlier display has be closed with .DE
+.if r \\n[.ev]:ds-type \{
+.      if !\\n[\\n[.ev]:ds-type]==0 \{\
+.\"    "@warning" leaves the "display" empty
+.              @fatal \\$0: New .DS used without closing a former one.
+.      \}
+.\}
+.
 .br
 .di ds*div
 .ie '\\$1'B' \{\
-- 
2.19.2






    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?55136>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/