All,
Suppose I have a number of lines in a latex file like this:
\backans{If $x=y^{2n}$ and $z=y^{3n}_{11}$, then we can substitute
to find a solution.}
I'd like to scan the file and replace all of these with this format:
\begin{answer}
If $x=y^{2n}$ and $z=y^{3n}_{11}$, then we can substitute
to find a solution.
\end{answer}
I'm looking for suggestions as to how to make this change with my perl
script. I am puzzled by the use of nested braces and how I can be sure I've
got everything between the opening and closing brace.
Thanks.
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