5
votes
1answer
110 views

Print a speacial character read by \readline in the same way in the document

I want to read a underscore character from a file with \readline and print it as an underscore in the resulting pdf. But the result is a high point. I've read quite a lot about category/character ...
9
votes
2answers
394 views

“Activate” active characters in argument passed as macro

Let's say I have some macro (\iPrint in the MWE) that internally uses active characters to interpret its argument: \documentclass{article} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} ...
3
votes
1answer
191 views

checking for whitespace inside verbatim environment

I would like to determine whether a line inside a verbatim environment starts with 3 spaces. I'm using pdflatex and the \pdfmatch primitive. I see that the verbatim environment sets the category ...