ECL (data-centric programming language): Difference between revisions

Revision as of 21:04, 31 May 2020

Revision as of 17:40, 10 July 2020

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Perhaps a more flavorful example would take a list of strings, sort them into order, and then return that as a result instead.

<sourcesyntaxhighlight lang="ecl">

// First declare a dataset with one column containing a list of strings

// Datasets can also be binary, CSV, XML or externally defined structures

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SD := SORT(D,Value);

output(SD)

</syntaxhighlight>

</source>

The statements containing a <code>:=</code> are defined in ECL as attribute definitions. They do not denote an action; rather a definition of a term. Thus, logically, an ECL program can be read: "bottom to top"

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What is an SD?

<sourcesyntaxhighlight lang="ecl">

SD := SORT(D,Value);

</syntaxhighlight>

</source>

SD is a D that has been sorted by ‘Value’

What is a D?

<sourcesyntaxhighlight lang="ecl">

D := DATASET([{'ECL'},{'Declarative'},{'Data'},{'Centric'},{'Programming'},{'Language'}],{STRING Value;});

</syntaxhighlight>

</source>

D is a dataset with one column labeled ‘Value’ and containing the following list of data.