[GRASS-dev] g.mlist problem

[Michael Barton]

Thanks again William.

Can others test on different platforms and let us know before I commit
something that breaks it for other people?

Michael


On 9/18/07 8:37 AM, "William Kyngesburye" <woklist at kyngchaos.com> wrote:

> It should be.  I checked the Gnu sed docs online, and they also say
> that you must use \ + real newline in the replacement string.  I
> wonder why \n works for other platforms?
> 
> On Sep 18, 2007, at 10:04 AM, Michael Barton wrote:
> 
>> William,
>> 
>> I'm very glad you've identified the problem. But I worry whether this
>> solution is portable across platforms.
>> 
>> Michael
>> 
>> 
>> On 9/18/07 6:47 AM, "William Kyngesburye" <woklist at kyngchaos.com>
>> wrote:
>> 
>>> Same happens for me (OSX).  I walked thru the script commands
>>> manually, and it is indeed messing up on the first sed.
>>> 
>>> I see this in the sed man for Sed Regex info (OSX uses the BSD sed):
>>> 
>>> 2.   The escape sequence \n matches a newline character embedded
>>> in the
>>>       pattern space.  You can't, however, use a literal newline
>>> character
>>>       in an address or in the substitute command.
>>> 
>>> Later, for the s/ function, it says:
>>> 
>>> A line can be split by substituting a newline character into it.
>>> To specify a newline character in the replacement string, precede
>>> it with a backslash.
>>> 
>>> Putting a real newline after the \ does the trick:
>>> 
>>>      g.list type=$type mapset=$mapset \
>>> | grep -v '^-\+$' \
>>> | grep -v "files available" \
>>> | grep -vi "mapset" \
>>> | sed 's/  */\
>>> /g' \
>>> | grep -v '^$' \
>>> | grep "$search" \
>>> | sort \
>>> | sed -e "s/$/$MAPSET/"
>>> 
> 
> -----
> William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
> http://www.kyngchaos.com/
> 
> All generalizations are dangerous, even this one.
> 
> 

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

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