Nesting Function arguments in custom columns

[da_jane]

I am trying to create a custom column that requires a lowercase Authors and lowercase Title with all the punctuation stripped out. So far I have this:

http://releases.dearauthor.com/wp-content/coverimages/{author:lowercase()}/{title:lowercase()}({id})/cover.jpg

I know I can use re to strip out the punctation such as re(,\,) but I'm not sure where I put that to affect "author".

Do I make two additional custom columns. One to make the author lowercase and then another to strip out the punctuation using re.

lowercaseauthor:re(\,,)

did not work as an argument.

I did figure out a solution. There are probably more elegant solutions. I created four columns. The first two to get the author and title to lower case and then the next two to strip out punctuation and spaces.

{#lowercaseauthor:re([?!. ],)}

{#lowercasetitle:re([?!. ],)}

[chaley]

Originally Posted by da_jane

I am trying to create a custom column that requires a lowercase Authors and lowercase Title with all the punctuation stripped out. So far I have this:

http://releases.dearauthor.com/wp-content/coverimages/{author:lowercase()}/{title:lowercase()}({id})/cover.jpg

I know I can use re to strip out the punctation such as re(,\,) but I'm not sure where I put that to affect "author".

Do I make two additional custom columns. One to make the author lowercase and then another to strip out the punctuation using re.

lowercaseauthor:re(\,,)

did not work as an argument.

You can nest functions in either of template program mode or general program mode. For example, to strip commas from a lowercase author in template program mode you could use

{authors:'re(lowercase($), ',', '')'}