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Problem Report 0758 Details

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Report 0758 Actions

    Problem Report Number 0758
    Submitter's Classification Specification problem
    State Resolved
    Resolution Temporary Interpretation (TIN)
    Problem Resolution ID TIN.X.0049
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published 1995-09-09 08:00
    Product Standard Commands and Utilities V2 (UNIX 95)
    Certification Program The Open Brand certification program
    Test Suite VSC version 4.1.4
    Test Identification POSIX.cmd/ed 315
    Specification Commands and Utilities Issue 4 Version 2
    Location in Spec See Problem Text
    Problem Summary TIN4C.00012 Global (g) command semantics mandated by spec may change.
    Problem Text
    The behavior of the global command 'g' was recently the subject of an IEEE
    interpretation (PASC Ref. #1003.2-119) because it broke historical practice.
    Concerns were raised and forwarded to the POSIX.2 working group.

    The wording in section 4.20.7.3.7 (Global command description) of
    IEEE Std 1003.2-1992 was changed in P1003.2b/D11 as a result of this
    interpretation.
    Test Output

    Assertion #315 (A): Test the g command operational behavior wrt dot modification
    Note: The behavior associated with this assertion is currently
    the subject of an IEEE POSIX.2 interpretation request and may
    change in a future revision of POSIX.2.
    diff of "ed_out_315_1" and "ed_eout_315_1":
    *** ed_out_315_1 Fri Aug 18 08:50:59 1995
    --- ed_eout_315_1 Fri Aug 18 08:50:58 1995
    ***************
    *** 1,4 ****
    ! The fuRther eLaboration and development of systematic arithmetic, like
    ! neaRLy everything else which the mathematics of our century has produced
    ! in the way of oRiginaL scientific ideas, is knit to Gauss.
    ! LeopoLd KRonecker.
    --- 1,4 ----
    ! ThE fuRther eLaboratioN and development of systematic arithmetic, like
    ! NEaRLy everything else which the mathematics of our century has produced
    ! iN thE way of oRiginaL scientific ideas, is knit to Gauss.
    ! LEopoLd KRoNecker.
    Command failed: 'cmp_show ed_out_315_1 ed_eout_315_1'
    Assertion Result: FAIL

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    The interpretation referenced does not state the POSIX spec is in error.
    It essentially states that the standard is clear and should be followed.

    However, 1003.2b/D11 rewords 4.20.7.3.7 from

    In the g command, the first step is to mark every line that
    matches the given RE.

    Then, for every such line, the given command list will be
    executed with the current line number set to the address of that
    line.

    When the g command completes, the current line number will have
    the value assigned by the last command in the command list. If
    there were no matching lines, the current line number will not be
    changed. A single command or the first of a list of commands
    will appear on the same line as the global command. All lines of
    a multi-line list

    to

    In the g command, the first step is to mark every line that
    matches the given RE.

    Then, going sequentially from the beginning of the file to the
    end of the file, the given command list shall be executed for
    each marked line, with the current loine number set to the
    address of that line. Any line modified by the command list
    shall be unmarked.

    When the g command completes, the current line number will have
    the value assigned by the last command in the command list. If
    there were no matching lines, the current line number will not be
    changed. A single command or the first of a list of commands
    will appear on the same line as the global command. All lines of
    a multi-line list

    Anticipating acceptance of POSIX 2003.2b/D11 and the eventual
    alignment of the tests with it a temporary interpretation is
    recommended.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Temporary Interpretation (TIN)
    Review Conclusion
    A Temporary Interpretation is granted.

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