Re: Format by example

[Dr . Jürgen Sauermann]

    Hi Bill,
      
      interesting. Works on my machine:
      
           'This is a description 55,550.' ⍕ 5 5⍴1 
      This is a description      1.This is a
        description      1.This is a description 
                 1.This is a description      1.This is
        a description      1.
      This is a description      1.This is a
        description      1.This is a description 
                 1.This is a description      1.This is
        a description      1.
      This is a description      1.This is a
        description      1.This is a description 
                 1.This is a description      1.This is
        a description      1.
      This is a description      1.This is a
        description      1.This is a description 
                 1.This is a description      1.This is
        a description      1.
      This is a description      1.This is a
        description      1.This is a description 
                 1.This is a description      1.This is
        a description      1.
             ⍴ 'This is a description 55,550.' ⍕ 5 5⍴1 
      5 145
      
    You may want to try:
    
          ]log 21
    
    to see more details of what happens.
    
    Best Regards,
    Jürgen

On 8/8/20 4:51 PM, Bill Heagy wrote:

> I still
>       see a segfault.
>       
>       
>       
>       wheagy@bigflight:~/apl_svn/apl/trunk$ akt src/apl
>       
>       
>                           ______ _   __ __  __    ___     ____   __
>       
>                          / ____// | / // / / /   /   |   / __ \ / /
>       
>                         / / __ /  |/ // / / /   / /| |  / /_/ // /
>       
>                        / /_/ // /|  // /_/ /   / ___ | / ____// /___
>       
>                        \____//_/ |_/ \____/   /_/  |_|/_/    /_____/
>       
>       
>                           Welcome to GNU APL version 1.8 / 1334M
>       
>       
>                       Copyright (C) 2008-2020  Dr. Jürgen Sauermann
>       
>                              Banner by FIGlet: www.figlet.org
>       
>       
>                       This program comes with ABSOLUTELY NO WARRANTY;
>       
>                               for details run: src/apl --gpl.
>       
>       
>            This program is free software, and you are welcome to
>       redistribute it
>       
>                according to the GNU Public License (GPL) version 3 or
>       later.
>       
>       
>             'This is a description 55,550.' ⍕ 5 5⍴1
>       
>       
> ==============================================================================
>       
>       Assertion failed: row.size() == format.size()
>       
>       in Function:      format_by_example
>       
>       in file:          Bif_F12_FORMAT.cc:289
>       
>       
>       Call stack:
>       
>       
>       ----------------------------------------
>       
>       -- Stack trace at Bif_F12_FORMAT.cc:289
>       
>       ----------------------------------------
>       
>       0x7FFA3BF15CCA __libc_start_main
>       
>       0x556DAC21C045  main
>       
>       0x556DAC395175   Workspace::immediate_execution(bool)
>       
>       0x556DAC27B4CB    Command::process_line()
>       
>       0x556DAC27C04A     Command::do_APL_expression(UCS_string&)
>       
>       0x556DAC27B56F      Command::finish_context()
>       
>       0x556DAC284878       Executable::execute_body() const
>       
>       0x556DAC338121        StateIndicator::run()
>       
>       0x556DAC2B75EE         Prefix::reduce_statements()
>       
>       0x556DAC2B0A98          Prefix::reduce_A_F_B_()
>       
>       0x556DAC244E00           Bif_F12_FORMAT::eval_AB(Value_P, Value_P)
>       
>       0x556DAC244CA9           
>       Bif_F12_FORMAT::format_by_example(Value_P, Value_P)
>       
>       0x556DAC2373C9             do_Assert(char const*, char const*,
>       char const*, int)
>       
>       ========================================
>       
>       
>       SI stack:
>       
>       
>       Depth:      0
>       
>       Exec:       0x556dacb32980
>       
>       Safe exec:  0
>       
>       Pmode:      ◊  'This is a description 55,550.' ⍕ 5 5⍴1
>       
>       PC:         5 (7) ENDL
>       
>       Stat:       'This is a description 55,550.' ⍕ 5 5⍴1
>       
>       err_code:   0x0
>       
>       
>       
> ==============================================================================
>       
>       
>       
>       ===================================================
>       
>       SEGMENTATION FAULT
>       
>       
>       ----------------------------------------
>       
>       -- Stack trace at main.cc:88
>       
>       ----------------------------------------
>       
>       0x7FFA3BF15CCA __libc_start_main
>       
>       0x556DAC21C045  main
>       
>       0x556DAC395175   Workspace::immediate_execution(bool)
>       
>       0x556DAC27B4CB    Command::process_line()
>       
>       0x556DAC27C04A     Command::do_APL_expression(UCS_string&)
>       
>       0x556DAC27B56F      Command::finish_context()
>       
>       0x556DAC284878       Executable::execute_body() const
>       
>       0x556DAC338121        StateIndicator::run()
>       
>       0x556DAC2B75EE         Prefix::reduce_statements()
>       
>       0x556DAC2B3C93          Prefix::reduce_END_B__()
>       
>       0x556DAC338A55          
>       StateIndicator::statement_result(Token&, bool)
>       
>       0x556DAC38E9BD            Value::print(std::ostream&) const
>       
>       0x556DAC2D4F6E             PrintBuffer::PrintBuffer(Value
>       const&, PrintContext const&, std::ostream*)
>       
>       munmap_chunk(): invalid pointer
>       
>       wheagy@bigflight:~/apl_svn/apl/trunk$
>       
>       
>       On 8/8/20 8:59 AM, Dr. Jürgen Sauermann wrote:
>       
> > Hi Bill,
> >         
> >         
> >         I believe I have fixed this, *SVN 1334*.
> >         
> >         
> >         However, I would try to avoid "format by example" where
> >         possible. It looks simple at
> >         
> >         first glance, but seems to allow somewhat  quirky format strings
> >         (e.g. numbers with
> >         
> >         multiple decimal points) whose proper implementation would
> >         require far more effort
> >         
> >         than the current implementation.
> >         
> >         
> >         Best Regards,
> >         
> >         Jürgen
> >         
> >         
> >         
> >         
> >         On 8/6/20 10:09 PM, Bill Daly wrote:
> >         
> > > I was not really sure of how format by
> > >           example worked:
> > >           
> > >           
> > >                 'This is a description 55,550.' ⍕ t1[1;1]
> > >           
> > >           
> > > ==============================================================================
> > >           
> > >           Assertion failed: row.size() == format.size()
> > >           
> > >           in Function:      format_by_example
> > >           
> > >           in file:          Bif_F12_FORMAT.cc:289
> > >           
> > >           
> > >           Call stack:
> > >           
> > >           
> > >           ----------------------------------------
> > >           
> > >           -- Stack trace at Bif_F12_FORMAT.cc:289
> > >           
> > >           ----------------------------------------
> > >           
> > >           0x7FA80A0F4B97 __libc_start_main
> > >           
> > >           0x5574C5E7DFE5  main
> > >           
> > >           0x5574C6006085   Workspace::immediate_execution(bool)
> > >           
> > >           0x5574C5EDEAB8    Command::process_line()
> > >           
> > >           0x5574C5EDF6F8     Command::do_APL_expression(UCS_string&)
> > >           
> > >           0x5574C5EDEBCD      Command::finish_context()
> > >           
> > >           0x5574C5EE7C37       Executable::execute_body() const
> > >           
> > >           0x5574C5FA4734        StateIndicator::run()
> > >           
> > >           0x5574C5F1E470         Prefix::reduce_statements()
> > >           
> > >           0x5574C5F16A52          Prefix::reduce_A_F_B_()
> > >           
> > >           0x5574C5EA29E3           Bif_F12_FORMAT::eval_AB(Value_P,
> > >           Value_P)
> > >           
> > >           0x5574C5EA2701 Bif_F12_FORMAT::format_by_example(Value_P,
> > >           Value_P)
> > >           
> > >           0x5574C5E93EE7             do_Assert(char const*, char const*,
> > >           char const*, int)
> > >           
> > >           ========================================
> > >           
> > >           
> > >           SI stack:
> > >           
> > >           
> > >           Depth:      0
> > >           
> > >           Exec:       0x5574c8288a90
> > >           
> > >           Safe exec:  0
> > >           
> > >           Pmode:      ◊  'This is a description 55,550.' ⍕ t1[1;1]
> > >           
> > >           PC:         8 (10) ENDL
> > >           
> > >           Stat:       'This is a description 55,550.' ⍕ t1[1;1]
> > >           
> > >           err_code:   0x0
> > >           
> > >           
> > >           
> > > ==============================================================================
> > >           
> > >           
> > >           
> > >           ===================================================
> > >           
> > >           SEGMENTATION FAULT
> > >           
> > >           
> > >           ----------------------------------------
> > >           
> > >           -- Stack trace at main.cc:88
> > >           
> > >           ----------------------------------------
> > >           
> > >           0x7FA80AE278A0
> > >           
> > >           0x5574C5E8512B
> > >           
> > >           ========================================
> > >           
> > >           ====================================================
> > >           
> > >           
> > >           
> > >           Process apl exited abnormally with code 3
> > >           
> > >           
> > >           w
> > >           
> > >           
> > >           
> > >         
> >         
> >       
>       
>