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c++ builder XE4, 10.2 Tokyo > String > 英数字文字列のみ返す処理 > getAlphaNumericString()

Last updated at Posted at 2015-10-09
動作確認
C++ Builder XE4
Rad Studio 10.2 Tokyo Update 2 (追記: 2017/12/27)

タブやエスケープシーケンスなどのない、英数字のみからなる文字列を取得したい。

ただし、括弧も取得したい。

手抜きでIndy使用。

#include <IdGlobal.hpp> // IsAlphaNumeric();
...


static String getAlphaNumericString(String srcStr)
{
	String res;
	String code;
	for(int idx=1; idx <= srcStr.Length(); idx++) {
		code = srcStr.SubString(idx, 1);
		if (IsAlphaNumeric(code.c_str())) {
			res = res + code;
		}
		if (code.Pos(L"(") > 0 || code.Pos(L")") > 0) {
			res = res + code;
		}
	}
	return res;
}


void __fastcall TForm1::Button1Click(TObject *Sender)
{
	String work = L"aaa-bbb\tddd(abc)";

	String res = getAlphaNumericString(work);

	Memo1->Lines->Add(res);

}
結果(Memo1内)
aaaabbbddd(abc)
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