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AE ExtendScript n文字毎に改行する

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正規表現を使って文字列を指定したn文字毎に改行(\n)する

AEテキストレイヤーを作成する時に一行の文字数を制限させたかった。

var n=17, str="abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"
var r=new RegExp(".{1,"+n+"}","g")
var result = str.match(r).toString().replace(/,/g,'\r');
$.writeln(result)

結果

abcdefghijklmnopq
rstuvwxyzabcdefgh
ijklmnopqrstuvwxy
zabcdefghijklmnop
qrstuvwxyzabcdefg
hijklmnopqrstuvwx
yz
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