StringReplacer

This parameter specifies which attributes will have substrings replaced.

This parameter specifies the substring that will be replaced. See also the Replacement Text parameter.

The Replacement Text parameter specifies the substring that will replace instances of the replacement substring.

If the replacement text contains & or \0, then it is replaced in the substitution with the portion of string that matched the regular expression.

If replacement text contains \#, where # is a digit between 1 and 9, then it is replaced in the substitution with the portion of string that matched the n-th parenthesized subexpression of the regular expression.

Special character sequences can be used in both the Text to Find and Replacement Text parameters.

Characters can be expressed as regular characters but they can also include any number of control characters.

Special character sequences (Advanced Editor only) are interpreted as shown below:

Sequence	Description
Ctrl+Shift+g (^G)	Audible alert (bell) (0x07)
Ctrl+Shift+h (^H)	Backspace (0x08)
Ctrl+Shift+l (^L)	Form feed (0x0c)
Ctrl+Shift+j (^J)	Newline (0x0a)
Ctrl+Shift+r (^M)	Carriage return (0x0d)
Ctrl+Shift+i (^I)	Tab (0x09)
Ctrl+Shift+k (^K)	Vertical tab (0x0b)
\	Backslash

 

Defining Special Characters

You can define special characters through the Basic or Advanced Editors. Click Open Editor from the parameter menu:

Basic Text Editor

Select Constant from the String Type column (or, in some transformers, the Value column) and click on the empty field in the column:

Click the browse button to the right of the column to open an Edit Value dialog. In this editor, enter characters using the shortcut keys from the table above.

Note: To see tab characters, click the Options menu on the bottom left and select Show Spaces/Tabs.

Advanced Text Editor

Enter characters using the shortcuts from the table above.

Note: To see tab characters, click the Options menu on the bottom left and select Show Spaces/Tabs.

This parameter specifies whether the Text to Find parameter is a plain string or a regular expression.

If the Use Regular Expressions parameter is set to Yes, Advanced Regular Expressions (AREs) are supported.  In brief, An ARE is one or more branches, separated by ‘|’, matching anything that matches any of the branches.

A brief summary of the special characters and their meanings is:

|	separates "branches" (or choices)
*	a sequence of 0 or more matches of what precedes it
+	a sequence of 1 or more matches of what precedes it
?	a sequence of 0 or 1 matches of what precedes it
.	matches any single character
^	matches the start of the value
$	matches the end of the value
[ ]	enclose a set of character choices
( )	enclose a "subexpression" -- whatever matches each subexpression is placed into the _matched_parts{} list attribute
a	any character can be listed to be matched

This parameter specifies whether or not the substring matching will be case-sensitive.