It's addition for use with or instead getopts. It's helps you writing scripts faster.

$ cat 0.0.sample_low_help_undefine
#!/bin/sh

test1() {
    echo "It's test1 with $# arguments: \"$@\""
}

test2() {
    echo "It's test2 with $# arguments: \"$@\""
}

. ./argv.low.lib.sh

$ ./0.0.sample_low_help_undefine 
--test1
--test2


$ ./0.0.sample_low_help_undefine --test1 a b
It's test1 with 2 arguments: "a b"

How people write large script usually...in my observations: They write a few lines. After some time they append new strings. The exists lines makes some entity and they wrap it into a function.
Every new entity needs external call. So it needs to have been added into the argument parses.
You have to edit argument parses everytime when you make or change entity? - the argv.lib.sh solve it!
It work with arguments without your interventions.

Low version can accelerates your work with next functionality:

• function call from arguments: function have to begin from start of line and first string of the function have to end with { like myfunction () {
• argument of function by arguments: it pass with in default into your function.

Middle version to add to low version:

• help creation: just add variable with end _help in the name - it automatic will added to the help output.

You can insert library code into end of your script or use link like . ./argv.mid.lib.sh. Just see the samples.

Make variable in you script like next variable=${variable:-"It's default"}, it's will gave you opportunity to change it in envirement. You can call it with variables changes variable1=test ./scriptname function_in_script function_argv If you make custom help, use space before name function like help() {

You can found it in current directory.

Stable. Tested on Ubuntu 18.04

• argv.lib.low.sh - library without annotated help
• argv.lib.mid.sh - library with annotated help
• 0.0.sample_low_help_undefine - include external link to lib, without custom help
• 0.1.sample_low_help_undefine - concat script and library, without custom help
• 1.0.sample_low_help_define - include ex.link to lib, without custom help
• 1.1.sample_low_help_define - concat script and library, with custom help
• 2.0.sample_mid_annotation_undefine - include ex.link, help lib, without annotation
• 2.1.sample_mid_annotation_undefine - concat with lib, help lib, without annotation
• 3.0.sample_mid_annotation_define - include ex.link, help lib, with annotation
• 3.1.sample_mid_annotation_define - concat with lib, help lib, with annotation
• GNUmakefile - it's need for concat src help and low lib to mid version. And test.
• test_reference - only for self tests.

MIT License

Copyright (c) 2021 Anton Riabchevskiy

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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