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 FileMaker Pro Custom Functions

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SubstituteRange ( text; beginString; endString; replaceString )

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  Average rating: 4.3  (40 votes)
  Discuss this Custom Function

Jim Main, Main Solutions
http://www.mainsolutions.org

Replaces all occurrances of two text strings, along with any text between them, with another value

Sample Input:
SubstituteRange ( text; "<SPAN"; ">"; "" )

where the content of text is:

<SPAN STYLE= "font-size: 14px;" >size14text </SPAN>
<SPAN STYLE= "color: #3333CC;" >bluetext </SPAN>
<SPAN STYLE= "font-weight: bold;" >boldtext </SPAN>
Sample Output:
size14text </SPAN> bluetext </SPAN> boldtext </SPAN>


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

This is equivalent to the 'Substitute' function, with a single wilcard value. It replaces every occurrance in 'text' of 'beginString*endString', with 'replaceString' (where '*' is any text value of any length). Each beginString value is replaced beggining with the first, up to the first endString value encountered. Each subsequent remaining beginString is processed, until no trailing endString is found.
For example, if beginString = "<tr>", endString = "</tr>" and replaceString = "-", the following text would generate the following results:

a<tr>b<tr>c</tr>d</tr>e
a-d</tr>e

a<tr>b</tr>c<tr>d</tr>e
a-c-e

a</tr>b<tr>c</tr>d<tr>e
a</tr>b-d<tr>e

I've wanted this feature for some time to parse html tags. However, as there is no way to remove text formatting in FM7 (such as size, font, and color) I've also found it useful in conjunction with the 'GetAsCSS' function to remove field formatting. The following formula will remove all formatting from any text field:

SubstituteRange(
Substitute(GetAsCSS (Field), "</SPAN>¶", "")
, "<SPAN"; ">"; "" )

It uses a combination of html and URL-encoding for special characters that you'll need to substitute for (a return (¶) generates <BR>, while an ampersand (&) generates &)

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

Discuss:

This is a great custom function. However, there is a omission bug in the above code. This line here:

modText &
SubstituteRange(remainText; beginString; endString; replaceString)

should be

modText & replaceString &
SubstituteRange(remainText; beginString; endString; replaceString)

Otherwise, the replaceString is simply removed and nothing inserted.

Ron Smith, Fayetteville
April 11, 2009 2:38pm

Is there a way to copy the original string?

I want to remove the string from FieldA, but would like to drop that original value in FieldB when I'm done.

Andy Haenszel, Columbus
December 16, 2010 9:55am

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