It is impossible to take the empty alternative for this production,
since any input which matches `litsq_aq` would instead match `lit_aq`
if the empty alternative is used. In addition, there is no action
clause for the empty alternative, so it wouldn't typecheck if the
empty alternative was possible.
This has no effect on the generated parser, but clarifies the grammar
(and makes ports easier!).
Change-Id: I32c85d2c74ab047b4b52401248d5dc7fc3201705
texvc had several tasks in the past:
1 checking the input
2 convert MediaWiki custom syntax to standard LaTeX
3 run LaTeX
4 convert dvi2png
This change provides a simplified version that performs
only steps 1+2. This is required to avoid security problems
with tools like MathJax, especially if these tools are
run at the server-side.
Bug: 54624
Change-Id: I1650e6ec2ccefff6335fbc36bbe8ca8f59db0faa
