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Navigation: Code Documentation > RSCommon

GRegularExpression Namespace

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Regular expression search engine for Windows.

Deprecated since it does not support Unicode characters.

Name

Description

public class

ERXException

Base exception class for the regular expression engine.

public class

TGRegularExpression

Encapsulates a regular expression search engine. This object will build a state machine from a regular expression, which can then be matched againsts strings. The regular expression search engine supports:

• '?' zero or one

• '*' zero or more

• '+' one or more

• '|' Choice

• '^' Anchor at beginning (match must start at first position

• '$' Anchor at end (match #13)

• '-' range, e.g., 0-9

• '.' any single char

Warning
This engine only works with ansi strings, not Unicode.

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	Name	Description
	TCharSet	Represents type TCharSet.
	TRegExChar	Represents an alias of the AnsiChar type.
	TRegExStates	Represents an array of the TRegExState type.
	TRegExString	Represents an alias of the AnsiString type.
	TRXIntegerArray	Represents an array of the Integer type.
	TRXStringArray	Represents an array of the TRegExString type.

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	Name	Description
	MetaCharacters	Represents constant MetaCharacters.
	rgx2DigitDayOfMonth	Represents constant rgx2DigitDayOfMonth.
	rgx2DigitHour	Represents constant rgx2DigitHour.
	rgx2DigitMinuteSecond	Represents constant rgx2DigitMinuteSecond.
	rgx2DigitMonth	Represents constant rgx2DigitMonth.
	rgx2DigitWeekOfYear	Represents constant rgx2DigitWeekOfYear.
	rgx3CharMonth	Represents constant rgx3CharMonth.
	rgx3DigitDayOfYear	Represents constant rgx3DigitDayOfYear.
	rgx4DigitYear	Represents constant rgx4DigitYear.
	rgxDayOfMonth	Represents constant rgxDayOfMonth.
	rgxDayOfWeek	Represents constant rgxDayOfWeek.
	rgxDecimal	Represents constant rgxDecimal.
	rgxHour	Represents constant rgxHour.
	rgxISO8601DateTime	Represents constant rgxISO8601DateTime.
	rgxISO8601Duration	Represents constant rgxISO8601Duration.
	rgxISO8601DurationAlt	Represents constant rgxISO8601DurationAlt.
	rgxISO8601DurationStd	Represents constant rgxISO8601DurationStd.
	rgxISO8601TimeZone	Represents constant rgxISO8601TimeZone.
	rgxMinuteSecond	Represents constant rgxMinuteSecond.
	rgxMonth	Represents constant rgxMonth.
	rgxOptional	Represents constant rgxOptional.
	rgxPunctuation	Represents constant rgxPunctuation.
	rgxWeekOfYear	Represents constant rgxWeekOfYear.
	rgxXSDanyURI	Represents constant rgxXSDanyURI.
	rgxXSDBase64Binary	Represents constant rgxXSDBase64Binary.
	rgxXSDEntities	Represents constant rgxXSDEntities.
	rgxXSDEntity	Represents constant rgxXSDEntity.
	rgxXSDgDay	Represents constant rgxXSDgDay.
	rgxXSDgMonth	Represents constant rgxXSDgMonth.
	rgxXSDgMonthDay	Represents constant rgxXSDgMonthDay.
	rgxXSDgYear	Represents constant rgxXSDgYear.
	rgxXSDgYearMonth	Represents constant rgxXSDgYearMonth.
	rgxXSDHexBinary	Represents constant rgxXSDHexBinary.
	rgxXSDhttpURI	Represents constant rgxXSDhttpURI.
	rgxXSDID	Represents constant rgxXSDID.
	rgxXSDIDRef	Represents constant rgxXSDIDRef.
	rgxXSDIDRefs	Represents constant rgxXSDIDRefs.
	rgxXSDLanguage	Represents constant rgxXSDLanguage.
	rgxXSDName	Represents constant rgxXSDName.
	rgxXSDNCName	Represents constant rgxXSDNCName.
	rgxXSDNMToken	Represents constant rgxXSDNMToken.
	rgxXSDNMTokens	Represents constant rgxXSDNMTokens.
	rgxYear	Represents constant rgxYear.
	ScanString	Represents constant ScanString.
	SMissingCloseBracket	'Missing Close Bracket'
	SMissingCloseParen	'Missing Close Parentheses'
	SUnexpectedEnd	'Unexpected end of regular expression'
	SUnexpectedMetaChar	'Unexpected meta character found'
	UnusedState	Represents constant UnusedState.

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