Package com.google.zxing.client.result

Class ResultParser

java.lang.Object

com.google.zxing.client.result.ResultParser

Direct Known Subclasses:

AbstractDoCoMoResultParser, AddressBookAUResultParser, EmailAddressResultParser, ExpandedProductResultParser, GeoResultParser, ISBNResultParser, ProductResultParser, SMSMMSResultParser, SMSTOMMSTOResultParser, SMTPResultParser, TelResultParser, URIResultParser, URLTOResultParser, VCardResultParser, VEventResultParser, VINResultParser, WifiResultParser

public abstract class ResultParser
extends java.lang.Object

Abstract class representing the result of decoding a barcode, as more than a String -- as some type of structured data. This might be a subclass which represents a URL, or an e-mail address. parseResult(Result) will turn a raw decoded string into the most appropriate type of structured representation.

Thanks to Jeff Griffin for proposing rewrite of these classes that relies less on exception-based mechanisms during parsing.

Field Summary

Fields

Modifier and Type	Field	Description
private static java.util.regex.Pattern	AMPERSAND
private static java.lang.String	BYTE_ORDER_MARK
private static java.util.regex.Pattern	DIGITS
(package private) static java.lang.String[]	EMPTY_STR_ARRAY
private static java.util.regex.Pattern	EQUALS
private static ResultParser[]	PARSERS

Constructor Summary

Constructors

Constructor	Description
ResultParser()

Method Summary

Modifier and Type	Method	Description
private static void	appendKeyValue(java.lang.CharSequence keyValue, java.util.Map<java.lang.String,java.lang.String> result)
private static int	countPrecedingBackslashes(java.lang.CharSequence s, int pos)
protected static java.lang.String	getMassagedText(Result result)
protected static boolean	isStringOfDigits(java.lang.CharSequence value, int length)
protected static boolean	isSubstringOfDigits(java.lang.CharSequence value, int offset, int length)
(package private) static java.lang.String[]	matchPrefixedField(java.lang.String prefix, java.lang.String rawText, char endChar, boolean trim)
(package private) static java.lang.String	matchSinglePrefixedField(java.lang.String prefix, java.lang.String rawText, char endChar, boolean trim)
protected static void	maybeAppend(java.lang.String[] value, java.lang.StringBuilder result)
protected static void	maybeAppend(java.lang.String value, java.lang.StringBuilder result)
protected static java.lang.String[]	maybeWrap(java.lang.String value)
abstract ParsedResult	parse(Result theResult)	Attempts to parse the raw Result's contents as a particular type of information (email, URL, etc.) and return a ParsedResult encapsulating the result of parsing.
protected static int	parseHexDigit(char c)
(package private) static java.util.Map<java.lang.String,java.lang.String>	parseNameValuePairs(java.lang.String uri)
static ParsedResult	parseResult(Result theResult)
protected static java.lang.String	unescapeBackslash(java.lang.String escaped)
(package private) static java.lang.String	urlDecode(java.lang.String encoded)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PARSERS

private static final ResultParser[] PARSERS

DIGITS

private static final java.util.regex.Pattern DIGITS

AMPERSAND

private static final java.util.regex.Pattern AMPERSAND

EQUALS

private static final java.util.regex.Pattern EQUALS

BYTE_ORDER_MARK

private static final java.lang.String BYTE_ORDER_MARK

See Also:

Constant Field Values

EMPTY_STR_ARRAY

static final java.lang.String[] EMPTY_STR_ARRAY

Constructor Detail

ResultParser

public ResultParser()

Method Detail

parse

public abstract ParsedResult parse(Result theResult)

Attempts to parse the raw Result's contents as a particular type of information (email, URL, etc.) and return a ParsedResult encapsulating the result of parsing.

Parameters:

theResult - the raw Result to parse

Returns:

ParsedResult encapsulating the parsing result

getMassagedText

protected static java.lang.String getMassagedText(Result result)

parseResult

public static ParsedResult parseResult(Result theResult)

maybeAppend

protected static void maybeAppend(java.lang.String value,
                                  java.lang.StringBuilder result)

maybeAppend

protected static void maybeAppend(java.lang.String[] value,
                                  java.lang.StringBuilder result)

maybeWrap

protected static java.lang.String[] maybeWrap(java.lang.String value)

unescapeBackslash

protected static java.lang.String unescapeBackslash(java.lang.String escaped)

parseHexDigit

protected static int parseHexDigit(char c)

isStringOfDigits

protected static boolean isStringOfDigits(java.lang.CharSequence value,
                                          int length)

isSubstringOfDigits

protected static boolean isSubstringOfDigits(java.lang.CharSequence value,
                                             int offset,
                                             int length)

parseNameValuePairs

static java.util.Map<java.lang.String,java.lang.String> parseNameValuePairs(java.lang.String uri)

appendKeyValue

private static void appendKeyValue(java.lang.CharSequence keyValue,
                                   java.util.Map<java.lang.String,java.lang.String> result)

urlDecode

static java.lang.String urlDecode(java.lang.String encoded)

matchPrefixedField

static java.lang.String[] matchPrefixedField(java.lang.String prefix,
                                             java.lang.String rawText,
                                             char endChar,
                                             boolean trim)

countPrecedingBackslashes

private static int countPrecedingBackslashes(java.lang.CharSequence s,
                                             int pos)

matchSinglePrefixedField

static java.lang.String matchSinglePrefixedField(java.lang.String prefix,
                                                 java.lang.String rawText,
                                                 char endChar,
                                                 boolean trim)