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* Copyright (C) 2009 to 2011 Tim Marston <tim@ed.am>
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* Copyright (C) 2009 to 2011 Tim Marston <edam@waxworlds.org>
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* This file is part of the Import Contacts program (hereafter referred
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* to as "this program"). For more information, see
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* http://ed.am/dev/android/import-contacts
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* http://www.waxworlds.org/edam/software/android/import-contacts
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Locale;
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import java.util.NoSuchElementException;
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import java.util.Set;
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import java.util.Vector;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import android.annotation.SuppressLint;
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import android.content.SharedPreferences;
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import android.provider.Contacts;
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import android.provider.Contacts.PhonesColumns;
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public class VcardImporter extends Importer
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private class Vcard extends ContactData
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private final static int NAMELEVEL_NONE = 0;
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private final static int NAMELEVEL_N = 1;
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private final static int NAMELEVEL_FN = 2;
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private final static int NAMELEVEL_FN = 1;
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private final static int NAMELEVEL_N = 2;
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private final static int MULTILINE_NONE = 0;
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private final static int MULTILINE_ENCODED = 1; // v2.1 quoted-printable
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// determine whether we care about this entry
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final HashSet< String > interesting_fields =
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new HashSet< String >( Arrays.asList( new String[] { "N",
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"FN", "ORG", "TITLE", "TEL", "EMAIL", "ADR", "LABEL" }
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new HashSet< String >( Arrays.asList( new String[]
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{ "N", "FN", "ORG", "TITLE", "TEL", "EMAIL", "ADR" }
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boolean is_interesting_field =
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interesting_fields.contains( name_param_parts[ 0 ] );
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// parse encoding parameter
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String encoding = checkParam( name_param_parts, "ENCODING" );
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if( encoding != null )
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encoding = encoding.toUpperCase( Locale.US );
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if( encoding != null ) encoding = encoding.toUpperCase();
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if( is_interesting_field && encoding != null &&
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!encoding.equals( "8BIT" ) &&
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!encoding.equals( "QUOTED-PRINTABLE" ) )
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// parse charset parameter
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String charset = checkParam( name_param_parts, "CHARSET" );
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if( charset != null )
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charset = charset.toUpperCase( Locale.US );
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if( charset != null ) charset = charset.toUpperCase();
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if( charset != null &&
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!charset.equals( "US-ASCII" ) &&
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!charset.equals( "ASCII" ) &&
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_parser_multiline_state = MULTILINE_ENCODED;
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// convert 8-bit US-ASCII charset to UTF-8 (where no charset is
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// specified for a v2.1 vcard entry, we assume it's US-ASCII)
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if( ( charset == null && _version.equals( "2.1" ) ) ||
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( charset != null && (
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charset.equals( "ASCII" ) ||
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charset.equals( "US-ASCII" ) ) ) )
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// convert 8-bit ASCII charset to US-ASCII
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if( charset == null || charset.equals( "ASCII" ) ) {
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value = transcodeAsciiToUtf8( value );
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// process charset (value is now in UTF-8)
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String string_value;
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string_value = new String( value.array(), value.position(),
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value.limit() - value.position(), "UTF-8" );
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value.limit() - value.position(), charset );
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} catch( UnsupportedEncodingException e ) {
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throw new ParseException( R.string.error_vcf_charset );
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parseEMAIL( name_param_parts, complete_value );
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else if( name_param_parts[ 0 ].equals( "ADR" ) )
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parseADR( name_param_parts, complete_value );
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else if( name_param_parts[ 0 ].equals( "LABEL" ) )
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parseLABEL( name_param_parts, complete_value );
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else if( name_param_parts[ 0 ].equals( "NOTE" ) )
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parseNOTE( name_param_parts, complete_value );
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return ( count & 1 ) == 1;
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private String[] splitValueByCharacter( String value, char character )
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private String[] splitValueBySemicolon( String value )
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// split string in to parts by specified character
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// split string in to parts by semicolon
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ArrayList< String > parts = new ArrayList< String >(
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Arrays.asList( value.split( "" + character ) ) );
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Arrays.asList( value.split( ";" ) ) );
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// go through parts
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for( int a = 0; a < parts.size(); a++ )
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if( a < parts.size() - 1 &&
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doesStringEndInAnEscapeChar( str ) )
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// append the escaped character, join the next part to this
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// part and remove the next part
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// join the next part to this part and remove the next part
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parts.set( a, str.substring( 0, str.length() - 1 ) +
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character + parts.get( a + 1 ) );
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';' + parts.get( a + 1 ) );
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parts.remove( a + 1 );
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// re-visit this part
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return parts.toArray( ret );
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private String unescapeValue( String value )
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StringBuilder ret = new StringBuilder( value.length() );
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boolean in_escape = false;
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for( int a = 0; a < value.length(); a++ )
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int c = value.codePointAt( a );
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// process a normal character
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ret.append( Character.toChars( c ) );
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// process an escape sequence
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// add tab (invalid/non-standard, but accepted)
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// add escaped character
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ret.append( Character.toChars( c ) );
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// unknown escape sequence, so add it unescaped
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// (invalid/non-standard, but accepted)
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ret.append( Character.toChars( c ) );
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return ret.toString();
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private void parseN( String[] params, String value )
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// already got a better name?
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if( _name_level >= NAMELEVEL_N ) return;
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// get name parts
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String[] name_parts = splitValueByCharacter( value, ';' );
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String[] name_parts = splitValueBySemicolon( value );
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final int[] part_order = { 3, 1, 2, 0, 4 };
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for( int a = 0; a < part_order.length; a++ )
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if( name_parts.length > part_order[ a ] &&
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name_parts[ part_order[ a ] ].length() > 0 )
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// split this part in to it's comma-separated bits
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String[] name_part_parts = splitValueByCharacter(
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name_parts[ part_order[ a ] ], ',' );
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for( int b = 0; b < name_part_parts.length; b++ )
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if( name_part_parts[ b ].length() > 0 )
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if( value.length() == 0 ) value += " ";
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value += name_part_parts[ b ];
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if( name_parts.length > 1 && name_parts[ 1 ].length() > 0 )
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value += name_parts[ 1 ];
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if( name_parts.length > 0 && name_parts[ 0 ].length() > 0 )
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value += ( value.length() == 0? "" : " " ) + name_parts[ 0 ];
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setName( unescapeValue( value ) );
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_name_level = NAMELEVEL_N;
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if( _name_level >= NAMELEVEL_FN ) return;
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setName( unescapeValue( value ) );
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_name_level = NAMELEVEL_FN;
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private void parseORG( String[] params, String value )
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String[] org_parts = splitValueByCharacter( value, ';' );
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String[] org_parts = splitValueBySemicolon( value );
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if( org_parts == null || org_parts.length < 1 ) return;
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// build organisation name
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String.valueOf( org_parts[ 0 ] ) );
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for( int a = 1; a < org_parts.length; a++ )
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builder.append( ", " ).append( org_parts[ a ] );
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String organisation = unescapeValue( builder.toString() );
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String organisation = builder.toString();
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// set organisation name (using a title we've previously found)
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addOrganisation( organisation, _cached_title, true );
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if( types.contains( "FAX" ) )
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if( types.contains( "HOME" ) )
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type = TYPE_FAX_HOME;
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type = PhonesColumns.TYPE_FAX_HOME;
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type = TYPE_FAX_WORK;
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type = PhonesColumns.TYPE_FAX_WORK;
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else if( types.contains( "CELL" ) || types.contains( "VIDEO" ) )
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type = PhonesColumns.TYPE_MOBILE;
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else if( types.contains( "PAGER" ) )
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type = PhonesColumns.TYPE_PAGER;
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else if( types.contains( "WORK" ) )
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type = PhonesColumns.TYPE_WORK;
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type = PhonesColumns.TYPE_HOME;
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// add phone number
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addNumber( value, type, is_preferred );
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boolean is_preferred = types.contains( "PREF" );
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if( types.contains( "WORK" ) )
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type = Contacts.ContactMethods.TYPE_WORK;
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type = Contacts.ContactMethods.TYPE_HOME;
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addEmail( unescapeValue( value ), type, is_preferred );
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addEmail( value, type, is_preferred );
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private void parseADR( String[] params, String value )
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// get address parts
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String[] adr_parts = splitValueByCharacter( value, ';' );
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String[] adr_parts = splitValueBySemicolon( value );
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for( int a = 0; a < adr_parts.length; a++ )
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if( adr_parts[ a ].length() > 0 )
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// split this part in to it's comma-separated bits
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String[] adr_part_parts =
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splitValueByCharacter( adr_parts[ a ], ',' );
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for( int b = 0; b < adr_part_parts.length; b++ )
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if( adr_part_parts[ b ].length() > 0 )
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if( value.length() > 0 ) value += "\n";
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value += adr_part_parts[ b ];
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Set< String > types = extractTypes( params, Arrays.asList(
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"PREF", "WORK", "HOME" ) );
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if( types.contains( "WORK" ) )
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addAddress( unescapeValue( value ), type );
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private void parseLABEL( String[] params, String value )
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Set< String > types = extractTypes( params, Arrays.asList(
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"PREF", "WORK", "HOME" ) );
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if( types.contains( "WORK" ) )
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addAddress( unescapeValue( value ), type );
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private void parseNOTE( String[] params, String value )
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addNote( unescapeValue( value ) );
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for( int a = 0; a < adr_parts.length; a++ ) {
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if( value.length() > 0 ) value += "\n";
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value += adr_parts[ a ].trim();
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Set< String > types = extractTypes( params, Arrays.asList(
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"PREF", "WORK", "HOME", "INTERNET" ) );
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if( types.contains( "WORK" ) )
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type = Contacts.ContactMethods.TYPE_WORK;
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type = Contacts.ContactMethods.TYPE_HOME;
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addAddress( value, type );
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public void finaliseVcard()
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* Amongst the params, find the value of the first, only, of any with
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* @return a value, or null
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private String checkParam( String[] params, String name )
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String[] res = checkParams( params, name );
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return res.length > 0? res[ 0 ] : null;
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* Amongst the params, find the values of any with the specified name
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* @return an array of values, or null
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private String[] checkParams( String[] params, String name )
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HashSet< String > ret = new HashSet< String >();
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Pattern p = Pattern.compile(
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"^" + name + "[ \\t]*=[ \\t]*(\"?)(.*)\\1$" );
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for( int i = 0; i < params.length; i++ ) {
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Matcher m = p.matcher( params[ i ] );
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if( m.matches() )
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ret.add( m.group( 2 ) );
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return (String[]) ret.toArray( new String[ ret.size() ] );
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* Amongst the params, return any type values present. For v2.1 vCards,
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* those types are just parameters. For v3.0, they are prefixed with
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* "TYPE=". There may also be multiple type parameters.
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* @param a list of type values to look for
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* @return a set of present type values
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private Set< String > extractTypes( String[] params,
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List< String > valid_types )
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HashSet< String > types = new HashSet< String >();
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// get 3.0-style TYPE= param
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String type_params[] = checkParams( params, "TYPE" );
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for( int a = 0; a < type_params.length; a++ )
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// check for a comma-separated list of types (why? this isn't in
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String[] parts = type_params[ a ].split( "," );
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if( ( type_param = checkParam( params, "TYPE" ) ) != null ) {
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String[] parts = type_param.split( "," );
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for( int i = 0; i < parts.length; i++ )
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if( valid_types.contains( parts[ i ] ) )
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types.add( parts[ i ] );