Placeholders in URL templates
Every URL template in the Extreme URL Generator project must contain at least one placeholder for every iterator. When an URL is generated these placeholders are replaced with the values from corresponding iterators. A placeholder for an iterator in the URL template looks like this:
[1]
Basically, it is a number of the iterator from the Iterators section of the program's main window in square brackets. Putting a placeholder in an URL template is like saying "insert values from an iterator right here".
URL templates can have as many placeholders for the same iterator as necessary. All placeholders for one iterator are replaced with exactly the same value. For example, in this URL template:
https://www.website.com/folder[1]/file[1].jpg
there are 2 placeholders for iterator [ 1 ]. And they both are replaced with the same value in every generated URL:
https://www.website.com/folder1/file1.jpg
https://www.website.com/folder2/file2.jpg
https://www.website.com/folder3/file3.jpg
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