Control Structures: General Concepts

Control structures are common in most semi-modern computer languages. Since Glee is interpretive and vector oriented, use of control structures it is not a very efficient form of coding. However, after exhausting opportunities for vectorizing and still being short of your solution, control structures become essential. Further, efficiency is not always an issue. Often, using control structures simplifies the code and makes it clearer. For some more general comments, press Commentary.

Commentary Structure Semantics
Commentary How GLEE deals with Control Structures Understand how GLEE deals with control structures internally and you will likely save yourself some confusion and grief later on.
Commentary :for :for (iter[.fieldlist]){args[.fieldlist]{code}}
:if(test)      {a[.fl]{code}}
:elseif (test) {a[.fl]{code}}
:else          {a[.fl]{code}}
:select (v[.fl]{expr}) [.fl] {
:case (test) {(a[.fl]){code}}
:default (#true) {(a[.fl;]){code}}
:do (a[.fl]){(a[.fl]){code}}
:while (a[.fl]{test})
:do {(a[.fl]){code}}
:try {
:catch (a[.fl]{test}){(a[.fl]){code}}
:finally {(v[.fl]{Block}