macr2tree
ツリー変換用の関数
呼び出し手順
p = macr2tree(function)
引数
- function
handle of a Scilab macro (not its name as a string)
- p
List of type
programwith the fieldsp.name,p.nblines,p.inputs,p.outputs, andp.statements. The 3 last ones are nested lists describing the internal code of thefunction.
説明
このプリミティブは, コンパイル済みの Scilab 関数function-name
を関数を内部表現にコード化したツリー (鱗状のtlists)に変換します.
tree2code()と共に使用します.
例
prog = macr2tree(log2); // Note that the input is log2, not "log2" typeof(prog) fieldnames(prog)' prog.name deftxt = tree2code(prog, %T); printf("%s\n", deftxt);
--> typeof(prog)
ans =
program
--> fieldnames(prog)'
ans =
!name outputs inputs statements nblines !
--> prog.name
ans =
log2
--> deftxt = tree2code(prog, %T);
--> printf("%s\n", deftxt);
function [f,e] = log2(x)
[lhs,rhs] = argn(0)
if rhs<>1 then
msg = gettext("%s: Wrong number of input argument(s): %d expected.\n")
error(msprintf(msg, "log2", 1))
end
if argn(1)==1 then
f = log(x)/log(2)
else
[f,e] = frexp(x)
end
endfunction
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