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1.5 ¤³¤Î¥Þ¥Ë¥å¥¢¥ë¤ÎÆÉ¤ßÊý

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This is an example of an example!

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Example of input line (ÆþÎϹԤÎÎã)
⇒Output line from m4 (m4¤«¤é¤Î½ÐÎϹԤÎÎã)
error→and an error message (¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤ÎÎã)

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regexp(string, regexp, opt replacement)

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