+ return csvSplit(s,1,s.length()-2);
+ }
+
+ /**
+ * Parse a CSV string using {@link #csvSplit(List,String, int, int)}
+ * @param s The string to parse
+ * @return An array of parsed values.
+ */
+ public static String[] csvSplit(String s)
+ {
+ if (s==null)
+ return null;
+ return csvSplit(s,0,s.length());
+ }
+
+ /**
+ * Parse a CSV string using {@link #csvSplit(List,String, int, int)}
+ * @param s The string to parse
+ * @param off The offset into the string to start parsing
+ * @param len The len in characters to parse
+ * @return An array of parsed values.
+ */
+ public static String[] csvSplit(String s, int off,int len)
+ {
+ if (s==null)
+ return null;
+ if (off<0 || len<0 || off>s.length())
+ throw new IllegalArgumentException();
+
+ List<String> list = new ArrayList<>();
+ csvSplit(list,s,off,len);
+ return list.toArray(new String[list.size()]);
+ }
+
+ enum CsvSplitState { PRE_DATA, QUOTE, SLOSH, DATA, WHITE, POST_DATA };
+
+ /** Split a quoted comma separated string to a list
+ * <p>Handle <a href="https://www.ietf.org/rfc/rfc4180.txt">rfc4180</a>-like
+ * CSV strings, with the exceptions:<ul>
+ * <li>quoted values may contain double quotes escaped with back-slash
+ * <li>Non-quoted values are trimmed of leading trailing white space
+ * <li>trailing commas are ignored
+ * <li>double commas result in a empty string value
+ * </ul>
+ * @param list The Collection to split to (or null to get a new list)
+ * @param s The string to parse
+ * @param off The offset into the string to start parsing
+ * @param len The len in characters to parse
+ * @return list containing the parsed list values
+ */
+ public static List<String> csvSplit(List<String> list,String s, int off,int len)
+ {
+ if (list==null)
+ list=new ArrayList<>();
+ CsvSplitState state = CsvSplitState.PRE_DATA;
+ StringBuilder out = new StringBuilder();
+ int last=-1;
+ while (len>0)
+ {
+ char ch = s.charAt(off++);
+ len--;
+
+ switch(state)
+ {
+ case PRE_DATA:
+ if (Character.isWhitespace(ch))
+ continue;
+
+ if ('"'==ch)
+ {
+ state=CsvSplitState.QUOTE;
+ continue;
+ }
+
+ if (','==ch)
+ {
+ list.add("");
+ continue;
+ }
+
+ state=CsvSplitState.DATA;
+ out.append(ch);
+ continue;
+
+ case DATA:
+ if (Character.isWhitespace(ch))
+ {
+ last=out.length();
+ out.append(ch);
+ state=CsvSplitState.WHITE;
+ continue;
+ }
+
+ if (','==ch)
+ {
+ list.add(out.toString());
+ out.setLength(0);
+ state=CsvSplitState.PRE_DATA;
+ continue;
+ }
+
+ out.append(ch);
+ continue;
+
+ case WHITE:
+ if (Character.isWhitespace(ch))
+ {
+ out.append(ch);
+ continue;
+ }
+
+ if (','==ch)
+ {
+ out.setLength(last);
+ list.add(out.toString());
+ out.setLength(0);
+ state=CsvSplitState.PRE_DATA;
+ continue;
+ }
+
+ state=CsvSplitState.DATA;
+ out.append(ch);
+ last=-1;
+ continue;
+
+ case QUOTE:
+ if ('\\'==ch)
+ {
+ state=CsvSplitState.SLOSH;
+ continue;
+ }
+ if ('"'==ch)
+ {
+ list.add(out.toString());
+ out.setLength(0);
+ state=CsvSplitState.POST_DATA;
+ continue;
+ }
+ out.append(ch);
+ continue;
+
+ case SLOSH:
+ out.append(ch);
+ state=CsvSplitState.QUOTE;
+ continue;
+
+ case POST_DATA:
+ if (','==ch)
+ {
+ state=CsvSplitState.PRE_DATA;
+ continue;
+ }
+ continue;
+ }
+ }
+
+ switch(state)
+ {
+ case PRE_DATA:
+ case POST_DATA:
+ break;
+
+ case DATA:
+ case QUOTE:
+ case SLOSH:
+ list.add(out.toString());
+ break;
+
+ case WHITE:
+ out.setLength(last);
+ list.add(out.toString());
+ break;
+ }
+
+ return list;
+ }
+
+ public static String sanitizeXmlString(String html)
+ {
+ if (html==null)
+ return null;
+
+ int i=0;
+
+ // Are there any characters that need sanitizing?
+ loop: for (;i<html.length();i++)
+ {
+ char c=html.charAt(i);
+
+ switch(c)
+ {
+ case '&' :
+ case '<' :
+ case '>' :
+ case '\'':
+ case '"':
+ break loop;
+
+ default:
+ if (Character.isISOControl(c) && !Character.isWhitespace(c))
+ break loop;
+ }
+ }
+
+ // No characters need sanitizing, so return original string
+ if (i==html.length())
+ return html;
+
+ // Create builder with OK content so far
+ StringBuilder out = new StringBuilder(html.length()*4/3);
+ out.append(html,0,i);
+
+ // sanitize remaining content
+ for (;i<html.length();i++)
+ {
+ char c=html.charAt(i);
+
+ switch(c)
+ {
+ case '&' :
+ out.append("&");
+ break;
+ case '<' :
+ out.append("<");
+ break;
+ case '>' :
+ out.append(">");
+ break;
+ case '\'':
+ out.append("'");
+ break;
+ case '"':
+ out.append(""");
+ break;
+
+ default:
+ if (Character.isISOControl(c) && !Character.isWhitespace(c))
+ out.append('?');
+ else
+ out.append(c);
+ }
+ }
+ return out.toString();
projects / gigi.git / blobdiff