I write a lot of Geany snippets. I would like to add a snippet for %cursor% when writing snippets. I added this in the [Default] snippets:
cur=%cursor%
Problem being that will evaluate to placing the cursor, so disappears.
I am looking for an escape sequence for the %. I have tried \% and %% but no luck.
cur=%curso%cursor%%
is an OK workaround as I only need to add an r, but is not ideal.
The % is escaped with {pc} in Geany, so:
cur={pc}cursor{pc}
expands to %cursor%
Related
I use lua to make some complex job to prepare arguments for macros in Tex/LaTex.
Part I
Here is a stupid minimal example :
\newcommand{\test}{\luaexec{tex.print("11,12")}}% aim to create 11,12
\def\compare#1,#2.{\ifthenelse{#1<#2}{less}{more}}
\string\compare11,12. : \compare11,12.\\ %answer is less
\string\test : \test\\ % answer is 11,12
\string\compare : \compare\test. % generate an error
The last line creates an error. Obviously, Tex did not detect the "," included in \test.
How can I do so that \test is understood as 11 followed by , followed by 12 and not the string 11,12 and finally used as a correctly formed argument for \compare ?
There are several misunderstandings of how TeX works.
Your \compare macro wants to find something followed by a comma, then something followed by a period. However when you call
\compare\test
no comma is found, so TeX keeps looking for it until finding either the end of file or a \par (or a blank line as well). Note that TeX never expands macros when looking for the arguments to a macro.
You might do
\expandafter\compare\test.
provided that \test immediately expands to tokens in the required format, which however don't, because the expansion of \test is
\luaexec{tex.print("11,12")}
and the comma is hidden by the braces, so it doesn't count. But it wouldn't help nonetheless.
The problem is the same: when you do
\newcommand{\test}{\luaexec{tex.print("11,12")}}
the argument is not expanded. You might use “expanded definition” with \edef, but the problem is that \luaexec is not fully expandable.
If you do
\edef\test{\directlua{tex.sprint("11,12")}}
then
\expandafter\compare\test.
would work.
I need to remove all \text generated by TeXForm in Mathematica.
What I am doing now is this:
MyTeXForm[a_]:=StringReplace[ToString[TeXForm[a]], "\\text" -> ""]
But the result keeps the braces, for example:
for a=fx,
the result of TeXForm[a] is \text{fx}
the result of MyTeXForm[a] is {fx}
But what I would like is it to be just fx
You should be able to use string patterns. Based on http://reference.wolfram.com/mathematica/tutorial/StringPatterns.html, something like the following should work:
MyTeXForm[a_]:=StringReplace[ToString[TeXForm[a]], "\\text{"~~s___~~"}"->s]
I don't have Mathematica handy right now, but this should say 'Match "\text{" followed by zero or more characters that are stored in the variable s, followed by "}", then replace all of that with whatever is stored in s.'
UPDATE:
The above works in the simplest case of there being a single "\text{...}" element, but the pattern s___ is greedy, so on input a+bb+xx+y, which Mathematica's TeXForm renders as "a+\text{bb}+\text{xx}+y", it matches everything between the first "\text{" and last "}" --- so, "bb}+\text{xx" --- leading to the output
In[1]:= MyTeXForm[a+bb+xx+y]
Out[1]= a+bb}+\text{xx+y
A fix for this is to wrap the pattern with Shortest[], leading to a second definition
In[2]:= MyTeXForm2[a_] := StringReplace[
ToString[TeXForm[a]],
Shortest["\\text{" ~~ s___ ~~ "}"] -> s
]
which yields the output
In[3]:= MyTeXForm2[a+bb+xx+y]
Out[3]= a+bb+xx+y
as desired.
Unfortunately this still won't work when the text itself contains a closing brace. For example, the input f["a}b","c}d"] (for some reason...) would give
In[4]:= MyTeXForm2[f["a}b","c}d"]]
Out[4]= f(a$\$b},c$\$d})
instead of "f(a$\}$b,c$\}$d)", which would be the proper processing of the TeXForm output "f(\text{a$\}$b},\text{c$\}$d})".
This is what I did (works fine for me):
MyTeXForm[a_] := ToString[ToExpression[StringReplace[ToString[TeXForm[a]], "\\text" -> ""]][[1]]]
This is a really late reply, but I just came up against the same issue and discovered a simple solution. Put a space between the variables in the Mathematica expression that you wish to convert using TexForm.
For the original poster's example, the following code works great:
a=f x
TeXForm[a]
The output is as desired: f x
Since LaTeX will ignore that space in math mode, things will format correctly.
(As an aside, I was having the same issue with subscripted expressions that have two side-by-side variables in the subscript. Inserting a space between them solved the issue.)
Does anyone know how to make (nice looking) double bracket multiset notation in LaTeX, i.e something like (\binom{n}{k}) where there are two outer brackets instead of 1 as in binomial? You can see an example of what I mean in http://en.wikipedia.org/wiki/Multiset under the heading "Multiset coefficients" with the double brackets.
In Wikipedia they typeset it as:
\left(\!\!{n\choose k}\!\!\right)
but although this works well for LaTeX in maths mode, with inline equations the outer bracket becomes much larger than the inner bracket.
I have also tried using
\genfrac{((}{))}{0pt}{}{n}{k}
but it has an error with the double brackets.
I am using \binom as well in my document, so I would like the bracket sizes to be similar for \binom and \multiset.
You can explicitly specify the size of the brackets via
\big( \Big( \bigg( or \Bigg(
Then use \! for negative space to get the brackets closer to each other.
One can use the e-TeX \middle command as follows:
\newcommand{\multibinom}[2]{
\left(\!\middle(\genfrac{}{}{0pt}{}{#1}{#2}\middle)\!\right)
}
This assumes that you are using the AMSmath package. If not, replace \genfrac with the appropriate construct using \atop.
(Of course this is a hack: the proper solution would be scalable glyphs for the doubled parenthesis, but I can't find any fonts that provide it.)
I'm surprised it wasn't googlable either, so I'll provide a solution here for posterity's sake.
It is also possible to define two different new commands, using \tbinom and \dbinom (section 4.11.2 of the User's Guide for the amsmath Package):
\documentclass{article}
\usepackage{amsmath}
\newcommand{\inlinebnm}[2]{\ensuremath{\big(\!\tbinom{#1}{#2}\!\big)}}
\newcommand{\displybnm}[2]{\bigg(\!\!\dbinom{#1}{#2}\!\!\bigg)}
\begin{document}
Text $\inlinebnm{a}{b}$ text. %% inline
Text \inlinebnm{a}{b} text. %% inline (also ok thanks to ensuremath)
\[
\displybnm{a}{b} %% display-style
\]
\end{document}
I am using TeXnicCenter to edit a LaTeX document.
I now want to remove a certain tag (say, emph{blabla}} which occurs multiple times in my document , but not tag's content (so in this example, I want to remove all emphasization).
What is the easiest way to do so?
May also be using another program easily available on Windows 7.
Edit: In response to regex suggestions, it is important that it can deal with nested tags.
Edit 2: I really want to remove the tag from the text file, not just disable it.
Using a regular expression do something like s/\\emph\{([^\}]*)\}/\1/g. If you are not familiar with regular expressions this says:
s -- replace
/ -- begin match section
\\emph\{ -- match \emph{
( -- begin capture
[^\}]* -- match any characters except (meaning up until) a close brace because:
[] a group of characters
^ means not or "everything except"
\} -- the close brace
and * means 0 or more times
) -- end capture, because this is the first (in this case only) capture, it is number 1
\} -- match end brace
/ -- begin replace section
\1 -- replace with captured section number 1
/ -- end regular expression, begin extra flags
g -- global flag, meaning do this every time the match is found not just the first time
This is with Perl syntax, as that is what I am familiar with. The following perl "one-liners" will accomplish two tasks
perl -pe 's/\\emph\{([^\}]*)\}/\1/g' filename will "test" printing the file to the command line
perl -pi -e 's/\\emph\{([^\}]*)\}/\1/g' filename will change the file in place.
Similar commands may be available in your editor, but if not this will (should) work.
Crowley should have added this as an answer, but I will do that for him, if you replace all \emph{ with { you should be able to do this without disturbing the other content. It will still be in braces, but unless you have done some odd stuff it shouldn't matter.
The regex would be a simple s/\\emph\{/\{/g but the search and replace in your editor will do that one too.
Edit: Sorry, used the wrong brace in the regex, fixed now.
\renewcommand{\emph}[1]{#1}
any reasonably advanced editor should let you do a search/replace using regular expressions, replacing emph{bla} by bla etc.
I am trying to write programming code in latex using the verbatim environment, but when I write
\begin{verbatim}
char ch = 'x';
\end{verbatim}
then the ' -characters around x are displayed incorrectly (they look "curly"). How can I fix this problem?
Load the upquote package to fix this issue in verbatim mode.
If you want straight quotes in monospaced text mode (e.g., \texttt{...}), or indeed in any other font, then you can use the \textquotesingle command defined in the textcomp package:
\documentclass{article}
\usepackage{upquote,textcomp}
\begin{document}
\newcommand\upquote[1]{\textquotesingle#1\textquotesingle}
\verb|'c'| \texttt{\upquote{h}}
\textsf{\upquote{h}} \upquote{h}
\end{document}
This will work well for fonts in any encoding rather than depending on a specific glyph slot (such as \char13 in the default OT1 encoding).
Adding \usepackage{upquote} to my preamble was sufficient.
Perhaps older versions of LaTeX or upquote required more work.
I have
What is wrong?
New
If you want to get something like this
write
\makeatletter
\let \#sverbatim \#verbatim
\def \#verbatim {\#sverbatim \verbatimplus}
{\catcode`'=13 \gdef \verbatimplus{\catcode`'=13 \chardef '=13 }}
\makeatother
For displaying source code, you might consider using the listings package; it is quite powerful and offers an option to display “straight” quotation marks.
If you're seeing curly single right quotes in a verbatim environment, then the single right quote in your typewriter font is curly, and that's the correct one to use for what you're doing (which I assume is displaying some C code).
\textsf{``} and \textsf{''} come pretty close to straight quotes. No need for using any special packages.
This is what I got from another source, and this works.
Use `` to start the double quotes (this symbol is below ~ symbol on our keyboard)
Use '' to close the double quotes (this symbol is below the " symbol on our keyboard)
So, `` quote double, unquote double''
Same goes for single quotes, `quote single, unquote single'