/* * To change this template, choose Tools | Templates * and open the template in the editor. */package swoosh;import java.util.ArrayList;import java.util.List;class CSV {    public static final char DEFAULT_SEP = ',';  /** Construct a CSV parser, with the default separator (`,'). */  public CSV() {    this(DEFAULT_SEP);  }  /** Construct a CSV parser with a given separator.    * @param sep The single char for the separator (not a list of   * separator characters)   */  public CSV(char sep) {    fieldSep = sep;  }  /** The fields in the current String */  protected List list = new ArrayList();  /** the separator char for this parser */  protected char fieldSep;  /** parse: break the input String into fields   * @return java.util.Iterator containing each field    * from the original as a String, in order.   */  public List parse(String line)  {    StringBuffer sb = new StringBuffer();    list.clear();      // recycle to initial state    int i = 0;    if (line.length() == 0) {      list.add(line);      return list;    }    do {            sb.setLength(0);            if (i < line.length() && line.charAt(i) == '"')                i = advQuoted(line, sb, ++i);  // skip quote            else                i = advPlain(line, sb, i);            list.add(sb.toString());      i++;    } while (i < line.length());    return list;  }  /** advQuoted: quoted field; return index of next separator */  protected int advQuoted(String s, StringBuffer sb, int i)  {    int j;    int len= s.length();        for (j=i; j<len; j++) {            if (s.charAt(j) == '"' && j+1 < len) {                if (s.charAt(j+1) == '"') {                    j++; // skip escape char                } else if (s.charAt(j+1) == fieldSep) { //next delimeter                    j++; // skip end quotes                    break;                }            } else if (s.charAt(j) == '"' && j+1 == len) { // end quotes at end of line                break; //done      }      sb.append(s.charAt(j));  // regular character.    }    return j;  }  /** advPlain: unquoted field; return index of next separator */  protected int advPlain(String s, StringBuffer sb, int i)  {    int j;    j = s.indexOf(fieldSep, i); // look for separator        if (j == -1) {                 // none found            sb.append(s.substring(i));            return s.length();        } else {            sb.append(s.substring(i, j));            return j;        }    }}