[RegExp->ReplaceFirst] Detail

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▼ [RegExp->ReplaceFirst]


Tag Link	[RegExp->ReplaceFirst]	Category	String
Type	Member	Source Available	Yes
Support	Preferred	Version	8.5
Change	New	Data Source	Any
Output Type	None	Security	None
Implementation		Sets	Lasso 8.5

▼ Description

[RegExp->ReplaceFirst] is a utility tag which replaces the first instance of the find pattern in the input string with the replacement pattern and returns the result. The tag accepts optional parameters to override the -Find, -Replace, or -Input with new values.

The [RegExp->ReplaceAll] tag functions similarly, but replaces every instance of the find pattern in the input string with the replement pattern.

Usually this tag will be used to apply the same find and replacement pattern against several different inputs. Since the find and replacement patterns are only compiled once a series of search/replace operations on different strings can be performed faster than with individual [String_ReplaceRegExp] tags.

▼ Syntax

[(RegExp: -Find='[aeiou]', -Replace='*', -Input='The quick brown fox', -IgnoreCase)->ReplaceFirst]

▼ Parameters

Optional Parameters
-Find	Specifies a new find pattern to use for the search/replace operation. Defaults to the current stored find pattern.
-Replace	Specifies a new replacement pattern to use for the search/replace operation. Defaults to the current stored replacement pattern.
-Input	Specifies the input to run the search/replace operation on. Defaults to the current stored input string.
-IgnoreCase	If specified the search/replace operation is performed without regard to case. Defaults to the current setting in the regular expression type.

▼ Examples

See the Lasso 8 Language Guide for examples of how to use this tag.

▼ Related Tags

Substitution
[RegExp]
Member
[RegExp->AppendReplacement] [RegExp->AppendTail] [RegExp->Find] [RegExp->FindPattern] [RegExp->GroupCount] [RegExp->IgnoreCase]	[RegExp->Input] [RegExp->MatchPosition] [RegExp->MatchString] [RegExp->Matches] [RegExp->MatchesStart] [RegExp->Output]	[RegExp->ReplaceAll] [RegExp->ReplacePattern] [RegExp->Reset] [RegExp->Split]

▼ Category Tags

Substitution
[String] [String_CharFromName] [String_Concatenate] [String_EndsWith] [String_Extract] [String_FindPosition] [String_FindRegExp] [String_GetUnicodeVersion] [String_Insert]	[String_IsAlpha] [String_IsAlphaNumeric] [String_IsDigit] [String_IsHexdigit] [String_IsLower] [String_IsNumeric] [String_IsPunctuation] [String_IsSpace] [String_IsUpper]	[String_Length] [String_LowerCase] [String_Remove] [String_RemoveLeading] [String_RemoveTrailing] [String_Replace] [String_ReplaceRegExp] [String_UpperCase] [String_ValidCharset]
Member
[String->Append] [String->BeginsWith] [String->CharDigitValue] [String->CharName] [String->CharType] [String->Compare] [String->CompareCodePointOrder] [String->Contains] [String->CountChar32] [String->Digit] [String->EndsWith] [String->Equals] [String->Find] [String->FoldCase] [String->Get] [String->GetNumericValue] [String->Integer] [String->IsAlnum]	[String->IsAlpha] [String->IsBase] [String->IsCntrl] [String->IsDigit] [String->IsLower] [String->IsPrint] [String->IsSpace] [String->IsTitle] [String->IsUAlphabetic] [String->IsULowerCase] [String->IsUWhiteSpace] [String->IsUpper] [String->IsWhiteSpace] [String->Lowercase] [String->Merge] [String->PadLeading] [String->PadTrailing] [String->Remove]	[String->RemoveLeading] [String->RemoveTrailing] [String->Replace] [String->Reverse] [String->Size] [String->Split] [String->Substring] [String->TitleCase] [String->ToLower] [String->ToTitle] [String->ToUpper] [String->Trim] [String->Unescape] [String->Uppercase] [String->WasKeyword] [String->isUUpperCase]