/*
* Copyright 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using Result = com.google.zxing.Result;
namespace com.google.zxing.client.result
{
/// <summary> Parses contact information formatted according to the VCard (2.1) format. This is not a complete
/// implementation but should parse information as commonly encoded in 2D barcodes.
///
/// </summary>
/// <author> Sean Owen
/// </author>
/// <author>www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source
/// </author>
sealed class VCardResultParser:ResultParser
{
private VCardResultParser()
{
}
public static AddressBookParsedResult parse(Result result)
{
// Although we should insist on the raw text ending with "END:VCARD", there's no reason
// to throw out everything else we parsed just because this was omitted. In fact, Eclair
// is doing just that, and we can't parse its contacts without this leniency.
System.String rawText = result.Text;
if (rawText == null || !rawText.StartsWith("BEGIN:VCARD"))
{
return null;
}
System.String[] names = matchVCardPrefixedField("FN", rawText, true);
if (names == null)
{
// If no display names found, look for regular name fields and format them
names = matchVCardPrefixedField("N", rawText, true);
formatNames(names);
}
System.String[] phoneNumbers = matchVCardPrefixedField("TEL", rawText, true);
System.String[] emails = matchVCardPrefixedField("EMAIL", rawText, true);
System.String note = matchSingleVCardPrefixedField("NOTE", rawText, false);
System.String[] addresses = matchVCardPrefixedField("ADR", rawText, true);
if (addresses != null)
{
for (int i = 0; i < addresses.Length; i++)
{
addresses[i] = formatAddress(addresses[i]);
}
}
System.String org = matchSingleVCardPrefixedField("ORG", rawText, true);
System.String birthday = matchSingleVCardPrefixedField("BDAY", rawText, true);
if (!isLikeVCardDate(birthday))
{
birthday = null;
}
System.String title = matchSingleVCardPrefixedField("TITLE", rawText, true);
System.String url = matchSingleVCardPrefixedField("URL", rawText, true);
return new AddressBookParsedResult(names, null, phoneNumbers, emails, note, addresses, org, birthday, title, url);
}
private static System.String[] matchVCardPrefixedField(System.String prefix, System.String rawText, bool trim)
{
System.Collections.ArrayList matches = null;
int i = 0;
int max = rawText.Length;
while (i < max)
{
//UPGRADE_WARNING: Method 'java.lang.String.indexOf' was converted to 'System.String.IndexOf' which may throw an exception. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1101'"
i = rawText.IndexOf(prefix, i);
if (i < 0)
{
break;
}
if (i > 0 && rawText[i - 1] != '\n')
{
// then this didn't start a new token, we matched in the middle of something
i++;
continue;
}
i += prefix.Length; // Skip past this prefix we found to start
if (rawText[i] != ':' && rawText[i] != ';')
{
continue;
}
while (rawText[i] != ':')
{
// Skip until a colon
i++;
}
i++; // skip colon
int start = i; // Found the start of a match here
//UPGRADE_WARNING: Method 'java.lang.String.indexOf' was converted to 'System.String.IndexOf' which may throw an exception. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1101'"
i = rawText.IndexOf('\n', i); // Really, ends in \r\n
if (i < 0)
{
// No terminating end character? uh, done. Set i such that loop terminates and break
i = max;
}
else if (i > start)
{
// found a match
if (matches == null)
{
matches = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(3)); // lazy init
}
System.String element = rawText.Substring(start, (i) - (start));
if (trim)
{
element = element.Trim();
}
matches.Add(element);
i++;
}
else
{
i++;
}
}
if (matches == null || (matches.Count == 0))
{
return null;
}
return toStringArray(matches);
}
internal static System.String matchSingleVCardPrefixedField(System.String prefix, System.String rawText, bool trim)
{
System.String[] values = matchVCardPrefixedField(prefix, rawText, trim);
return values == null?null:values[0];
}
private static bool isLikeVCardDate(System.String value_Renamed)
{
if (value_Renamed == null)
{
return true;
}
// Not really sure this is true but matches practice
// Mach YYYYMMDD
if (isStringOfDigits(value_Renamed, 8))
{
return true;
}
// or YYYY-MM-DD
return value_Renamed.Length == 10 && value_Renamed[4] == '-' && value_Renamed[7] == '-' && isSubstringOfDigits(value_Renamed, 0, 4) && isSubstringOfDigits(value_Renamed, 5, 2) && isSubstringOfDigits(value_Renamed, 8, 2);
}
private static System.String formatAddress(System.String address)
{
if (address == null)
{
return null;
}
int length = address.Length;
System.Text.StringBuilder newAddress = new System.Text.StringBuilder(length);
for (int j = 0; j < length; j++)
{
char c = address[j];
if (c == ';')
{
newAddress.Append(' ');
}
else
{
newAddress.Append(c);
}
}
return newAddress.ToString().Trim();
}
/// <summary> Formats name fields of the form "Public;John;Q.;Reverend;III" into a form like
/// "Reverend John Q. Public III".
///
/// </summary>
/// <param name="names">name values to format, in place
/// </param>
private static void formatNames(System.String[] names)
{
if (names != null)
{
for (int i = 0; i < names.Length; i++)
{
System.String name = names[i];
System.String[] components = new System.String[5];
int start = 0;
int end;
int componentIndex = 0;
//UPGRADE_WARNING: Method 'java.lang.String.indexOf' was converted to 'System.String.IndexOf' which may throw an exception. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1101'"
while ((end = name.IndexOf(';', start)) > 0)
{
components[componentIndex] = name.Substring(start, (end) - (start));
componentIndex++;
start = end + 1;
}
components[componentIndex] = name.Substring(start);
System.Text.StringBuilder newName = new System.Text.StringBuilder(100);
maybeAppendComponent(components, 3, newName);
maybeAppendComponent(components, 1, newName);
maybeAppendComponent(components, 2, newName);
maybeAppendComponent(components, 0, newName);
maybeAppendComponent(components, 4, newName);
names[i] = newName.ToString().Trim();
}
}
}
private static void maybeAppendComponent(System.String[] components, int i, System.Text.StringBuilder newName)
{
if (components[i] != null)
{
newName.Append(' ');
newName.Append(components[i]);
}
}
}
}