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?

???? public ? static ?String??escape(String?src) {

???????? int ?i;??

???????? char ?j;??

????????StringBuffer?tmp? = ? new ?StringBuffer();

????????tmp.ensureCapacity(src.length() * 6 );

???????? for ?(i = 0 ;i < src.length()?;i ++ ?) {

????????????j? = ?src.charAt(i);

???????????? if ?(Character.isDigit(j)? || ?Character.isLowerCase(j)? || ?Character.isUpperCase(j))

????????????????tmp.append(j);

???????????? else ? if ?(j < 256 ) {

????????????????tmp.append(? " % " ?);

???????????????? if ?(j < 16 )

????????????????????tmp.append(? " 0 " ?);

????????????????tmp.append(?Integer.toString(j, 16 )?);

????????????} else {

????????????????tmp.append(? " %u " ?);

????????????????tmp.append(?Integer.toString(j, 16 )?);

????????????} ??

????????} ??

???????? return ?tmp.toString();

????} ?

???? public ? static ?String??unescape(String?src) {

????????StringBuffer?tmp? = ? new ?StringBuffer();

????????tmp.ensureCapacity(src.length());

???????? int ??lastPos = 0 ,pos = 0 ;?? char ?ch;

???????? while ?(lastPos < src.length()) {

????????????pos? = ?src.indexOf( " % " ,lastPos);

???????????? if ?(pos? == ?lastPos) {

???????????????? if ?(src.charAt(pos + 1 ) == ' u ' ) {

????????????????????ch? = ?( char )Integer.parseInt(src.substring(pos + 2 ,pos + 6 ), 16 );

????????????????????tmp.append(ch);

????????????????????lastPos? = ?pos + 6 ;

????????????????} else {

????????????????????ch? = ?( char )Integer.parseInt(src.substring(pos + 1 ,pos + 3 ), 16 );

????????????????????tmp.append(ch);

????????????????????lastPos? = ?pos + 3 ;

????????????????}

????????????} else {

???????????????? if ?(pos? == ? - 1 ) {

????????????????????tmp.append(src.substring(lastPos));

????????????????????lastPos = src.length();

????????????????} else {

????????????????????tmp.append(src.substring(lastPos,pos));

????????????????????lastPos = pos;

????????????????} ????

????????????} ??

????????} ??

???????? return ?tmp.toString();?

????} ????

posted on 2006-03-30 20:43 SIMONE 閱讀(394) 評(píng)論(0) 編輯收藏所屬分類: JAVA

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