cftag2cfscript – The cftag to cfscript converter for Coldfusion

Just uploaded my new project cftag2cfscript to github this morning.

With the arrival of Coldfusion 9 we can finally build our cfcs in cfscript. I’ve found that there can be a significant speed increase when converting an existing tag based cfc to cfscript. YMMV of course. Others may want to convert legacy cfcs to cfscript because they prefer writing in cfscript. Whatever your reason is for wanting to convert cf tags in to script cftag2cfscript is here to help.

Converting tag-based CF to script based CF is time consuming. This project aims to make it dead simple. Its not there yet, but maybe with your help we can reach that goal.

Checkout cftag2cfscript on Github

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A difference between cfloop and for loop in cfscript

I am moving key parts of a codebase to cfscript to take advantage of the speed boost that comes with using cfscript. Along the way I’m discovering the differences between tag-based Coldfusion and cfscript.

Today this was the bug I worked out:

This code will delete 10 widgets:

This cfscript will only delete 5 widgets:

var i = 1;
setNumberofWidgets(10);
for(i=1;i<=getWidgetTotal();i++)
{
deleteAWidget();
}

This is because getWidgetTotal() will be called on each iteration of the loop. After deleting 5 widgets the loop will exit because there will only be 5 widgets left and i will equal 5. The cfloop tag from the first example will only evaluate once before starting the loop.

This cfscript will delete 10 widgets:

var i = 1;
var total = getWidgetTotal();
setNumberofWidgets(10);
for(i=1;i<=total;i++)
{
deleteAWidget();
}

By calling the function before starting the loop we can get the total number of widgets and are then able to complete the loop.