programming

Here are some useful programming constructs for controlling the flow of execution.

apply -- loop over a list, keeping results

if -- condition testing

scan -- loop over a list

while -- loop control

; -- statement separator

Controlling the scope of variables:

:= -- assignment to and declaring a new local variable

global -- using global symbols which have values

local -- declaring new local symbols

quote -- using symbols which have values

Miscellaneous items:

-- -- introducing comments

addStartFunction -- do something after loading dumped data

clearAll -- release some memory

Command -- top level commands

erase -- remove a symbol

evaluate -- evaluate a string

memoize -- memoizing functions

using methods -- using methods

notImplemented -- 'not implemented yet' error message

processArgs -- process optional arguments to functions

protect -- protecting the value of a symbol

setrecursionlimit -- limits on recursion depth

syntax -- the syntax of the language

value -- getting values of symbols

For internal use only:

lineNumber -- the current line number

lookupCount -- how many times a symbol has been seen

phase -- internal variable for compilation

readExamples -- used to control compilation

runStartFunctions -- run the start functions

writeExamples -- used to control compilation