REReplace |
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Description
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Uses a regular expression (RE) to search a string for a string pattern and replace it with another. The search is case-sensitive.
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Returns
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If the scope attribute is set to one, returns a string with the first occurrence of the regular expression replaced by the value of substring.
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If the scope attribute is set to all, returns a string with all occurrences of the regular expression replaced by the value of substring.
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If the function finds no matches, it returns a copy of the string unchanged.
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Category
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String functions
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Function syntax |
REReplace(string, reg_expression, substring [, scope ])
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See also
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REFind, Replace, ReplaceList, REReplaceNoCase
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History
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ColdFusion MX: Added supports for the following special codes in a replacement substring, to control case conversion:
- \u - uppercase the next character
- \l - lowercase the next character
- \U - uppercase until \E
- \L - lowercase until \E
- \E - end \U or \L
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For more information on new features, see REFind.
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Parameters
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Parameter |
Description |
string |
A string or a variable that contains one. String within which to search. |
reg_expression |
Regular expression to replace. The search is case-sensitive. |
substring |
A string or a variable that contains one. Replaces reg_expression. |
scope |
one: replace the first occurrence (default) |
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all: replace all occurrences |
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Usage
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For details on using regular expressions, see Chapter 7, "Using Regular Expressions in Functions," in Developing ColdFusion MX Applications.
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Example<p>The REReplace function returns <i>string</i> with a regular expression
replaced
with <i>substring</i> in the specified scope. Case-sensitive search.
<p>REReplace("CABARET","C|B","G","ALL"):
<cfoutput>#REReplace("CABARET","C|B","G","ALL")#</cfoutput>
<p>REReplace("CABARET","[A-Z]","G","ALL"):
<cfoutput>#REReplace("CABARET","[A-Z]","G","ALL")#</cfoutput>
<p>REReplace("I love jellies","jell(y|ies)","cookies"):
<cfoutput>#REReplace("I love jellies","jell(y|ies)","cookies")#
</cfoutput>
<p>REReplace("I love jelly","jell(y|ies)","cookies"):
<cfoutput>#REReplace("I love jelly","jell(y|ies)","cookies")#</cfoutput>
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