[OS X TeX] Format declarations?
dac at panix.com
Tue Jan 26 01:46:14 EST 2010
Can someone clarify for me what purpose exactly the format declarations
at the beginning of a tex file serve? And what are the recognized
formats for these declarations?
Roughly, as I understand it, they tell the underlying engine (usually
pdflatex these days, I guess) how to process the file in the absence of
some other instruction.
What's the difference, though, between, say
The latter syntax (which I copied from a TeXShop version history page)
doesn't seem to have an effect. (It still produces a pdf and not dvi.)
Am I interpreting that page incorrectly?
I'd like to understand these declarations a bit better, but Google keeps
filtering out the special characters so it's been hard to pin down.
As a follow on, the auto tex generation at arXiv.org won't process a
file that begins with %&pdflatex. (They're uppity that way -- says it's
not a valid format.) Is there any way to set up those format headers so
TeXShop will run pdflatex and arXiv will run latex? (I suspect the
answer is to leave off the format header entirely.)
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