Created
July 11, 2012 07:58
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文字列の前後の全角スペースおよび半角スペースを除去
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package utils; | |
/** | |
* @author Musubu Inc. | |
*/ | |
public class StringUtils { | |
private static final String SPACE_CHAR_HALF = " "; | |
private static final String SPACE_CHAR_WIDE = " "; | |
/** | |
* 文字列の前後の全角スペース及び半角スペースを除去 | |
* | |
* @param value | |
* @return String | |
*/ | |
public static String trim(String value) { | |
return ltrim(rtrim(value)); | |
} | |
/** | |
* 文字列の前の全角スペース及び半角スペースを除去 | |
* | |
* @param value | |
* @return String | |
*/ | |
public static String ltrim(String value) { | |
if (value == null || value.equals("")) return value; | |
int pos = 0; | |
for (int i = 0; i < value.length(); i++) { | |
String s = String.valueOf(value.charAt(i)); | |
if (s != SPACE_CHAR_HALF && s != SPACE_CHAR_WIDE) break; | |
pos = i + 1; | |
} | |
if (pos > 0) { | |
return value.substring(pos); | |
} else { | |
return value; | |
} | |
} | |
/** | |
* 文字列の後の全角スペースおよび半角スペースを除去 | |
* | |
* @param value | |
* @return String | |
*/ | |
public static String rtrim(String value) { | |
if (value == null || value.equals("")) return value; | |
int pos = 0; | |
for (int i = value.length() - 1; i >= 0; i--) { | |
String s = String.valueOf(value.charAt(i)); | |
if (s != SPACE_CHAR_HALF && s != SPACE_CHAR_WIDE) break; | |
pos = i; | |
} | |
if (pos > 0) { | |
return value.substring(0, pos); | |
} else { | |
return value; | |
} | |
} | |
} |
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