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Posted to dev@groovy.apache.org by adithyank <ad...@gmail.com> on 2018/10/12 19:06:52 UTC
Text / String processing DSL in groovy for String/Text processing
(Both Command line usage and script based usage)
As suggested by Jochen Theodorou in this
<http://groovy.329449.n5.nabble.com/New-DSLs-in-the-groovy-platform-itself-for-more-script-like-use-cases-td5750522.html>
post, I have created this topic for `Text / String processing`
I have always felt that groovy platform itself can have rich set of DSLs
(list given below) so that groovy will be in hands of many non-developers.
Also, the command line String/text processing capabilities can be greatly
enhanced with java/groovy power.
*Use Case 1 : command line usage*Simple input processing can be done in the
command line itself*Use Case 2 : DSL Script for more complex line
processing functionalities (similar to 'awk') with java / groovy power*
--
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Re: Text / String processing DSL in groovy for String/Text
processing (Both Command line usage and script based usage)
Posted by adithyank <ad...@gmail.com>.
Hi,
I strongly feel that the text processing capabilities with java / groovy
power at the command line will definitely be a great feature to the groovy
language itself.
Hence my below proposal.
If it is felt that the proposal is not going to add value to groovy
platform, I will be happy to just delete/move this topic away from the
active list...
Thanks,
K Adithyan
India
adithyank wrote
> As suggested by Jochen Theodorou in this
> <
> http://groovy.329449.n5.nabble.com/New-DSLs-in-the-groovy-platform-itself-for-more-script-like-use-cases-td5750522.html
> >
> post, I have created this topic for `Text / String processing`
> I have always felt that groovy platform itself can have rich set of DSLs
> (list given below) so that groovy will be in hands of many non-developers.
>
> Also, the command line String/text processing capabilities can be greatly
> enhanced with java/groovy power.
*
> Use Case 1 : command line usage Simple input processing can be done in the
> command line itself
*
>
> Below example adds all the numbers available as lines in the piped file.
> Just a simple example for illustration...
*
> $ cat lines.txt | groovy -n --complex 'def s = 0; EACHLINE
> {s+=line.numval}; END {println s}'
*
>
*
> Use Case 2 : DSL Script for more complex line processing functionalities
> (similar to 'awk') with java / groovy power
*
>
> def s = ....
> ......
> ......
>
> //for choosing lines with regex
> matches (regex) {
> work for those lines
> }
>
>
> //for choosing lines with some expression
> matches {
>
> condition {expression for line selection}
>
> process {
> work for those lines
> }
> }
>
> END {
> //end closure after processing all matching lines of the input files
> }
--
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