Re: Convert some Latex expressions in Emacs.

[Emanuel Berg]

Hongyi Zhao wrote:

> 1. Remove the following stuff: `\begin{array}{l}',
> `\end{array}'.

Kill manually.

> 2. For each word, remove '{' and '}', spaces, and add *
> between two characters of it, i.e., `P^{5} Q^{2} R' should
> be changed to `P^5*Q^2*R'.

You can do this with `re-search-forward' and regular
expressions that also have subexpressions, you then refer back
to them in `replace-match'. E.g., eval the following

(while (re-search-forward "_\\(.*\\)_" (point-max) t)
  (replace-match "\\\\textit{\\1}") )

To change

  - That ain't _true_!
  - I _know_ right?

into

  - That ain't \textit{true}!
  - I \textit{know} right?

> 4. Change the first `\\' to new line.

If it just happens once, doing it manually is as fast or
faster as any other way, either that or it should be.

> 6. Change other `\\' to comma.

After doing the first manually, `replace-regexp', this
time no need for subexpressions tho.

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