[GRASS-dev] Re: [GRASS GIS] #127: WinGRASS Tcl/Tk GUI - Text formatting error in Output window

[Michael Barton]

Thanks for the suggestions.

Michael


On 5/15/08 5:08 PM, "Glynn Clements" <glynn at gclements.plus.com> wrote:

> 
> Michael Barton wrote:
> 
>>> #127: WinGRASS Tcl/Tk GUI - Text formatting error in Output window
>>> -------------------------+--------------------------------------------------
>>>   Reporter:  4everskiff  |       Owner:  grass-dev at lists.osgeo.org
>>>       Type:  defect      |      Status:  new
>>>   Priority:  minor       |   Milestone:  6.4.0
>>>  Component:  Tcl         |     Version:  6.3.0
>>> Resolution:              |    Keywords:  Text output, winGRASS
>>> -------------------------+--------------------------------------------------
>>> Changes (by marcopx):
>>> 
>>>   * version:  6.3.0 RCs => 6.3.0
>>> 
>>> Comment:
>>> 
>>>  Replying to [comment:5 cmbarton]:
>>>> I've committed a change to gronsole.tcl that I hope fixes this. It is
>>>  not a problem on the Mac, and maybe only on Windows. I moved the linefeed
>>>  for command output text from after the text line to before the text line.
>>>  I'm assuming that Windows will read "\n" as a line feed. Could someone
>>>  please test in Windows. I'm not changing this ticket to resolved yet to
>>>  see if it actually works.
>>>> 
>>>> Michael
>>> 
>>>  Very good.
>>>  It seems that I definetly need to build upon the SVN trunk. It will take 3
>>>  hours or more here :-(
>>>  BTW, the windows (working) code for the Carriage Return & Linefeed is
>>>  \r\n, but probably the \n suffices
>> 
>> This may be the underlying cause of the error in gronsole.tcl. I don't know
>> how /r is read in *nix. I'm also not sure if I can get away with replacing
>> "/n" with a variable so that I can make it vary by platform. E.g.,
>> 
>> If {$mingw == 1} {set rlf {/r/n}} else {set rlf {/n}}
> 
> First, the escape character is a backslash, not a (forward) slash.
> 
> Tcl/Tk behaves like C, in that \n is used as the line separator
> internally. \r characters should be added/removed upon output/input.
> In particular, if you want to add a line break within a multi-line
> text widget, you just add a \n character regardless of platform.
> 
> To handle EOL conversions for I/O, use "fconfigure ... -translation ...".

__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton