[Bug fortran/64506] New: FORMAT Parse Error with Continuation Line

[Bug fortran/64506] New: FORMAT Parse Error with Continuation Line

[thfanning at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64506

            Bug ID: 64506
           Summary: FORMAT Parse Error with Continuation Line
           Product: gcc
           Version: 4.9.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: thfanning at gmail dot com

Created attachment 34385
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34385&action=edit
Sample program to illustrate parse error.

In a FORMAT statement, a character literal immediately followed by a
continuation character (&) and then a comment character (!) results in a parse
error. A simple program is attached that implements the following statements:

100 format('This format is OK.'&
    )
200 format('This format fails.'&!comment
    )
300 format('This format fails.'& !comment
    )
400 format('This format is OK.' &!comment
    )
500 format('This format is OK.' & !comment
    )

Compiling this results in the following:

200 format('This format fails.'&!comment
                                1
Error: Unexpected element '&' in format string at (1)
gfortran_parse_error.f90:13.32:

300 format('This format fails.'& !comment
                                1
Error: Unexpected element '&' in format string at (1)

[Bug fortran/64506] FORMAT Parse Error with Continuation Line

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64506

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-01-09
     Ever confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I see it from 4.8.5 up to trunk (5.0).

[Bug fortran/64506] FORMAT Parse Error with Continuation Line

[burnus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64506

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
                 CC|                            |burnus at gcc dot gnu.org

--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Patch: https://gcc.gnu.org/ml/gcc-patches/2015-02/msg00012.html

[Bug fortran/64506] FORMAT Parse Error with Continuation Line

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64506

--- Comment #3 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Author: jvdelisle
Date: Fri Feb 13 16:57:28 2015
New Revision: 220687

URL: https://gcc.gnu.org/viewcvs?rev=220687&root=gcc&view=rev
Log:
2015-02-13  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

    PR fortran/64506
    * scanner.c (gfc_next_char_literal): For free form source,
    check for '!' and if found, clear the comment and go back
    and get the next character. For fixed form source, skip the
    rest of the line.

Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/scanner.c

[Bug fortran/64506] FORMAT Parse Error with Continuation Line

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64506

--- Comment #4 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Author: jvdelisle
Date: Fri Feb 13 17:09:04 2015
New Revision: 220688

URL: https://gcc.gnu.org/viewcvs?rev=220688&root=gcc&view=rev
Log:
2015-02-13  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

    PR fortran/64506
    * gfortran.dg/continuation_13.f90: New test.
    * gfortran.dg/continuation_14.f: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/continuation_13.f90
    trunk/gcc/testsuite/gfortran.dg/continuation_14.f
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug fortran/64506] FORMAT Parse Error with Continuation Line

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64506

--- Comment #5 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Fixed on trunk, any other cases identified, please let me know.  I will hold
this open for a while just in case.

[Bug fortran/64506] FORMAT Parse Error with Continuation Line

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64506

Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
No further issues identified. Closing.