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Doc: add link to dev-expr download page

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Celestino Amoroso
2024-05-10 06:39:48 +02:00
parent 8346e28340
commit cf73b5c98d
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doc/Expr.adoc
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@@ -22,17 +22,23 @@ Expressions calculator
toc::[]
#TODO: Work in progress (last update on 2024/05/09, 07:17 am)#
#TODO: Work in progress (last update on 2024/05/10, 06:52 a.m.)#
== Expr
_Expr_ is a GO package capable of analysing, interpreting and calculating expressions.
=== Concepts and terminology
#TODO#
image::expression-diagram.png[]
=== `dev-expr` test tool
`dev-expr` is a simple program that can be used to evaluate expressions interactively. As its name suggests, it was created for testing purpose. In fact, beyond in additon to the automatic test suite based on the Go test framework, `dev-expr` provides an important aid for quickly testing of new features during their development.
It cat work as a REPL, *R*ead-*E*xecute-*P*rint-*L*oop, or it can process expression acquired from files or standard input.
It cat work as a _REPL_, _**R**ead-**E**xecute-**P**rint-**L**oop_, or it can process expression acquired from files or standard input.
The program can be downloaded from https://git.portale-stac.it/go-pkg/-/packages/generic/dev-expr/[dev-expr].
The program in located in the _tools_ directory.
Here are some examples of execution.
.Run `dev-expr` in REPL mode and ask for help
@@ -103,11 +109,6 @@ Here are some examples of execution.
<4> But operator, see <<_but_operator>>.
<5> Multi-expression: the same result of the previous single expression but this it is obtained with two separated calculations.
=== Concepts and terminology
#TODO#
image::expression-diagram.png[]
== Data types
_Expr_ supports numerical, string, relational, boolean expressions, and mixed-type lists.