All that you've told us so far is that you have some webpage that will contain plain text, that's what the Content tag means. There is no "pipe character" spec in a content type. Your printing code will contain the explicit pipe characters to be printed.

I have no idea what kind of text that contains pipe characters that you'd like to put on this plain text page. I guess you currently print with tabs - show us that 1) Perl code, 2) program data, 3) example printout and 4) what you think example printout should look like for 5-10 lines of output. Lot's of possibilities: "CSV" file using |?, perhaps a simple table where the pipe chars delimit the columns?