Remove characters in with ReplaceNoCase() ColdFusion

问题

I need to display an output from a data record that is formatted similar to this: XXXX:12345 (Xxxxxxxxx)

However, the only data I want to output is the "12345" and with two preceding zeros, i.e. the output should look like "0012345". The "12345" in the record is example only, each record has a unique number assigned. An example record looks like this: CAST:98765 (RPOS1234-XY)

Can I use the ReplaceNoCase() to pull only that data out of the record? If so, how would I write the code to remove the unwanted characters?

回答1:

You can do this in one line of code using a few functions.

str = 'CAST:98765 (RPOS1234-XY)';
projectCode = '00' & listLast( listFirst( str, ' ' ), ':' );

writeDump( projectCode );

To explain this code from the inner most function going out.

ListFirst() gets the first element in an a list based on the delimiter you specify, in this case the delimiter is ' ' - a space - yes, you can use a space as a delimiter.

ListLast() gets the last element in a list based on the delimiter you specify, in this case the delimiter is ':'

The first part simplt appends '00' to the result of the above function calls.

回答2:

If I had to use reReplaceNoCase or reFindNoCase this is how I would do it.

function parseTokenUsingReFindNoCase(token) {
    var local = {};

    // use regex to locate position of number (see only set of parentheses in regex pattern)
    local.positions = reFindNoCase("^.+:(\d+).+$", arguments.token, 1, true);
    // obtain the token substring and ensure at least 7 digits with preceding 0's
    local.result = numberFormat( mid(arguments.token, local.positions.pos[2], local.positions.len[2]), repeatString(0, 7));

    return local.result;
}


function parseTokenUsingReReplaceNoCase(token) {
    var local = {};

    // use regex to strip away text before and after the token
    local.result = reReplaceNoCase(arguments.token, "(^\D+|\s.+$)", "", "all");
    // ensure at least 7 digits with preceding 0's
    local.result = numberFormat(local.result, repeatString(0, 7));

    return local.result;
}

<h1>ParseToken</h1>

<h2>Using ReFindNoCase</h2>
<cfdump var="#parseTokenUsingReFindNoCase("CAST:98765 (RPOS1234-XY)")#" /><br>
<cfdump var="#parseTokenUsingReFindNoCase("CAST:591498 (FUBAR56-XE)")#" /><br>
<cfdump var="#parseTokenUsingReFindNoCase("CAST:784 (RFP4542-LL)")#" /><br>

<h2>Using ReReplaceNoCase</h2>
<cfdump var="#parseTokenUsingReReplaceNoCase("CAST:98765 (RPOS1234-XY)")#" /><br>
<cfdump var="#parseTokenUsingReReplaceNoCase("CAST:591498 (FUBAR56-XE)")#" /><br>
<cfdump var="#parseTokenUsingReReplaceNoCase("CAST:784 (RFP4542-LL)")#" /><br>

ParseToken

Using ReFindNoCase

0098765
0591498
0000784

Using ReReplaceNoCase

0098765
0591498
0000784

回答3:

It doesn't use replaceNoCase, but based on your comments this will work:

<cfset castTicket = projectCode>
  <!--- strip the first 5 characters, since it is always "CAST " --->
<cfset castTicket = removechars(castTicket, 1,5)>
  <!--- now return the leftmost characters, up to the space --->
<cfset castTicket = left(castTicket, find(" ", castTicket) )>  
  <!--- format the number so it has 7 digits (2 leading zeros in this case) --->
<cfset castTicket = NumberFormat(castTicket, 0000000)>
<cfoutput>#castTicket#</cfoutput>

Returns:

0012345

来源：https://stackoverflow.com/questions/27965244/remove-characters-in-cfoutput-with-replacenocase-coldfusion

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replace