On 03/02/2015 08:51 AM, alb wrote:
Hi Steven,
Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote:
[]
Since \r is an escape character, that will give you carriage return followed
by "ef{fig:abc".
The solution to that is to either escape the backslash:
i = '\\ref{fig:abc}'
or use a raw string:
i = r'\\ref{fig:abc}'
Actually that'd be:
i = r'\ref{fig:abc}'
ok, maybe I wasn't clear from the very beginning, but searching for a
solution is a journey that takes time and patience.
The worngly named variable i (as noted below), contains the *i*nput of
my text which is supposed to be restructured text. The output is what
pypandoc spits out after conversion:
i = "\\begin{tag}{%s}{%s}\n %s\n \\end{tag}" % (some, restructured, text)
o = pypandoc.convert(i, 'latex', format='rst')
Now if i contains some inline text, i.e. text I do not want to convert
in any other format, I need my text to be formatted accordingly in order
to inject some escape symbols in i.
Rst escapes with "\", but unfortunately python also uses "\" for escaping!
Only when the string is in a literal. If you've read it from a file, or
built it by combining other strings, or... then the backslash is just
another character to Python.
Oh, by the way, "i" is normally a terrible variable name for a string. Not
only doesn't it explain what the variable is for, but there is a very
strong convention in programming circles (not just Python, but hundreds of
languages) that "i" is a generic variable name for an integer. Not a
string.
I'm not in the position to argue about good practices, I simply found
more appropriate to have i for input and o for output, considering they
are used like this:
i = "some string"
o = pypandoc.convert(i, ...)
f.write(o)
with very little risk to cause misunderstanding.
How about "in" and "out"? Or perhaps some name that indicates what
semantics the string represents, like "rst_string" and "html_string"
or whatever they actually are?
Can you show what you are doing? Escaping the backslash with another
backslash does work:
py> for c in '\\ref':
... print(c, ord(c))
...
\ 92
r 114
e 101
f 102
so either you are doing something wrong, or the error lies elsewhere.
As said above, the string is converted by pandoc first and then printed.
At this point the escaping becomes tricky (at least to me).
In [17]: inp = '\\ref{fig:abc}'
In [18]: print pypandoc.convert(inp, 'latex', format='rst')
ref\{fig:abc\}
What did you expect/desire the pyandoc output to be? Now that you don't
have the embedded 0x0a, is there something else that's wrong?
If it's in the internals of pyandoc, I'll probably be of no help. But
your first question was about escaping; I'm not sure what it's about now.
--
DaveA
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