Hi,
I agree that some of string processing can be done with ferret string
functions but gawk
provides much more than this.
My example was trying to explain how a "unclosed quotation, parenthesis, or
bracket"
makes impossible a use of gawk within a spawn command to define a string
array.
I think that is nice when softwares have a "permeability zone" and for
instance
system commands calls can be done.
It is too bad to let all gawk features gone because of a parsing problem.
Patrick
I guess that like Ned, I'd use Ferret's string handling functions to
process the string, rather than a call to awk.
let instring = {spawn:"echo Hello ferreters"}
let ns = STRINDEX (instring, " ")
let a = SUBSTRING(instring, `ns+1`, `strlen(instring)`)
The string functions are listed here,
http://ferret.pmel.noaa.gov/Ferret/documentation/users-guide/handing-string-data-symbols/STRING-FUNCTIONS
Ansley
Brockmann Patrick wrote:
Hi all,
Is there a simple way to use gawk through the spawn command and get the
result in string array ?
Example:
in shell
$ echo Hello ferreters | awk '{print $2}'
in ferret
yes? spawn echo Hello ferreters | awk '{print $2}'
But how to get the result in a string array like
yes? LET a = {spawn:"ls *.nc"}
yes? LIST a
yes? let A = {spawn:"echo Hello ferreters | awk '{print $2}'"}
**ERROR: command syntax: {spawn:"echo Hello ferreters | awk '{print $2}'"}
unclosed quotation, parenthesis, or bracket
Up to now, I have used a trick by passing by an external shell script
like:
let A = {spawn:"echo Hello ferreters | awk -f get_2nd.awk"}
but that is not as easy as it could be.
Could the syntax parsing of the spawn command be changed ?
Patrick
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