[bug #60672] troff: No warning about ".el \{"

[Bjarni Ingi Gislason]

URL:
  <https://savannah.gnu.org/bugs/?60672>

                 Summary: troff: No warning about ".el \{"
                 Project: GNU troff
            Submitted by: bjarniig
            Submitted on: Tue 25 May 2021 07:23:28 PM UTC
                Category: Core
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

Subject: troff: No warning about ".el \{"

  Example:

printf '.pl 20v
.nr i 1
.if i=1 \{
.  nop
.\}
.ie i=0 \{
. nop
.\}
.el \{
. nop
.\}' | test-groff -z

  Shows:

troff: backtrace: file '<standard input>':3
troff: <standard input>:3: warning: missing closing delimiter in
conditional expression (got newline)
troff: backtrace: file '<standard input>':6
troff: <standard input>:6: warning: missing closing delimiter in
conditional expression (got newline)

  Related reports are #59434, #45502, and #60260.

N.B.

  .if ... \{

did not work in an HP operation system.





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