2010-02-17 似たもの 横棒 Unicode Character 'EM DASH' (U+2014) Unicode Character 'HORIZONTAL BAR' (U+2015) Unicode Character 'MINUS SIGN' (U+2212) Unicode Character 'KATAKANA-HIRAGANA PROLONGED SOUND MARK' (U+30FC) Unicode Character 'FULLWIDTH HYPHEN-MINUS' (U+FF0D)