Introduction

This is just a toy project for me to practice Scheme, and put into practice some of the things I learned reading the Little Schemer and SICP.

It is a simple CLI database for storing URLs. Each entry in the database has a title, url, a list of tags and a description.

An example database is given in the repository with the file db-example. Some other code examples are available in code-examples.

Compilation

Chicken Scheme is required to compile the program.

Compilation with chicken-install

This is the preferred way because it will install automatically all the required dependencies. To compile the program without installing-it run:

chicken-install -n 

Compilation with a makefile

First install the eggs list-utils and gnuplot-pipe, then to compile the program using a makefile simply run:

make

Using the interpreter

It is also possible to run the program using the csi interpreter:

csi -s main.scm -h

The above command prints the help of the program.

Tests

Using chicken-install

To run the unit tests:

chicken-install -n -test

Using make

To run the tests simply run the following command:

make test

Examples

Get Help

Prints help information on how to use the program:

./sdb -h

Get all the tags from the database

Prints all the titles of the database:

./sdb -l db-example.scm -g tags

Search inside the database

Searches for all the entries that have at least the tag prompted by the user. For example, enter "search" to have all the entries that have at least the tag search.

./sdb -l db-example.scm -s tags-or

Plot tags statistics

./sdb -l db-example.scm -p

Export the database to tsv

./sdb -l db-example.scm -e tsv