Summary

Here is the general overview about program and script in RPNE :

There are 3 ways to makes program/script :

	Program	QLE	String Source
type	program, build-in RPNE type	script, in fact it's a list	script, in fact it's a string
notes	very easy to maintain, editable	easy to maintain	no compilation (faster to launch)
storage	stored into a file very easy to edit	not stored as a script, it's just a list !	stored into a file But, not easy to edit
to store into VAR :	`STO`	`STO`	`STOScript`
to execute from the stack	`run`	not possible, must be converted into StringSource	`unSerialize`
to execute from VAR	hit the key	not possible, must be converted into StringSource	hit the key
to execute by its "name"	`Exec`	not possible, must be converted into StringSource	`Exec`
to restore it by its "name"	`RCL`	`RCL`	`RCL`

Program is the high level object that should fit needs of 99.9% of users.
The QLE is just a kind of interface to the StringSource
The StringSource system is the low level method to perform operations, only for advised users.

I recomand to choose using program instead of script (QLE..), it's more user friendly.

Note :
At each execution, Programs are converted into QLE and into StringSource, that's what we call "Just-In-Time" compilation (even if it's not really a compilation..)
StringSource cannot converted back into QLE and QLE cannot converted back into program.