package org.bouncycastle.i18n.filter;
/**
* Filter for strings to store in a SQL table.
*
* escapes ' " = - / \ ; \r \n
*/
public class SQLFilter implements Filter
{
public String doFilter(String input)
{
StringBuffer buf = new StringBuffer(input);
int i = 0;
while (i < buf.length())
{
char ch = buf.charAt(i);
switch (ch)
{
case '\'':
buf.replace(i,i+1,"\\\'");
i += 1;
break;
case '\"':
buf.replace(i,i+1,"\\\"");
i += 1;
break;
case '=':
buf.replace(i,i+1,"\\=");
i += 1;
break;
case '-':
buf.replace(i,i+1,"\\-");
i += 1;
break;
case '/':
buf.replace(i,i+1,"\\/");
i += 1;
break;
case '\\':
buf.replace(i,i+1,"\\\\");
i += 1;
break;
case ';':
buf.replace(i,i+1,"\\;");
i += 1;
break;
case '\r':
buf.replace(i,i+1,"\\r");
i += 1;
break;
case '\n':
buf.replace(i,i+1,"\\n");
i += 1;
break;
default:
}
i++;
}
return buf.toString();
}
}