Edit detail for BootProgramming revision 3 of 5

Boot is used internally in FriCAS? for some of the interpreter and compiler code. Here is a detailed description of the Boot Language

This is a simple example of Boot programming.

Define a function.

pairBoot(a,b) ==
  a>b => [-b,-a]
  [a,b]

 
   >> System error:
   invalid number of arguments: 1

; compiling file "/var/aw/var/LatexWiki/9211484592716052519-25px001.clisp" (written 27 MAR 2011 03:16:11 AM):

; /var/aw/var/LatexWiki/9211484592716052519-25px001.fasl written
; compilation finished in 0:00:00.006
Value = T

Now call it.

pairBoot(1,4)$Lisp

(1)

map(integer,destruct(pairBoot(3,2)$Lisp))

   >> System error:
   The function BOOT::SPADDIFFERENCE is undefined.

That's my first Boot function!

You can now write for example:

foobar(x,y) == x + y

 
   >> System error:
   invalid number of arguments: 1

; compiling file "/var/aw/var/LatexWiki/7491012761112044243-25px003.clisp" (written 27 MAR 2011 03:16:12 AM):

; /var/aw/var/LatexWiki/7491012761112044243-25px003.fasl written
; compilation finished in 0:00:00.002
Value = T

And call it with

integer(foobar(2,3)$Lisp)

   >> System error:
   The function BOOT::PLUS is undefined.

In FriCAS? (from revision 1049 on) the simplest way to compile and load boot code is to write it into a file and then call something like:

  )read FILE.boot