Rustom Mody <rustompm...@gmail.com> writes: > Im having an issue with inconsistent vertical space > > If I do latex export \\es at eol produce blank lines > However with html export they appear in output but not consistently > org version 8.2.5e > emacs version 24.3.1 > > Below a cut-down version from a file I see it happening > ------------ > #+TITLE: Equational Reasoning in Logic > #+AUTHOR: Rusi > #+OPTIONS: toc:nil > * Object and Meta language > Look at the following proof > > #+ATTR_LATEX: :mode math :environment flalign > P \wedge (Q \vee P)\\ > " \wedge distributes over \vee " \\ > = (P \wedge Q) \vee (P \wedge Q) \\ > " Idempotence of \vee " \\ > = P \wedge Q \\ > \\ > \\ >
This case is easy: just delete the last two \\ and you are done. I take it that your real case is more complicated. Running org-element-parse-buffer on your buffer might be illuminating: the "internal" \\ get parsed as (line-break (:begin 267 :end 270 :post-blank 0 :parent #3)) but the last one (I used a buffer with just one trailing \\, not two) gets parsed as #("\\\\ " 0 3 (:parent #3)) i.e. a string, so it gets copied to the output. When the output is latex: ,---- | " Idempotence of \(\vee\) " \\ | = P \(\wedge\) Q \\ | \\ | % Emacs 24.3.50.2 (Org mode 8.2.5g) | \end{document} `---- the \\ are processed by pdflatex and become empty lines. When the output is html: ,---- | " Idempotence of ∨ " <br /> | = P ∧ Q <br /> | \\ | </p> `---- they are processed by the browser which does nothing special with them, so they are shown in the output. Why exactly the last one is parsed as a literal string and not as a line break, I don't know. Nicolas will probably explain all. The only thing I can say is that if there is something other than whitespace on the line before the \\, it gets parsed as a line break; if there is only whitespace (or nothing), it gets parsed as a string. That's probably a rough description and not quite right in all particulars, but I hope it's close enough. -- Nick