I would like to be able to change the way Maxima generates the LaTeX code (in general). For example, I have the following code in Maxima:
I then exported the code to LaTeX, and I immediately get an error saying:
! Package inputenc Error: Unicode char \u8:− not set up for use with LaTeX.
See the inputenc package documentation for explanation.
Type H <return> for immediate help.
You can check out the LaTeX code generated through this gist on GitHub.
I would like at least not only to not get any errors, but also to change a little bit the style of the LaTeX code generation to adapt it to certain circumstances. For example, I would like to be able to insert a break line (or more) after the outputs...
Is it possible to do? Are there any alternatives?
You can put the following line in the preamble of the LaTeX output:
\DeclareUnicodeCharacter{2212}{-}
which tells LaTeX what to do with the Unicode hyphen (character 2212 according to this table).
WxMaxima should generate this declaration itself -- it is a bug that it does not.
Most likely something happened when you exported the code. To fix the existing file you can follow the accepted answer to this question.
https://tex.stackexchange.com/questions/83440/inputenc-error-unicode-char-u8-not-set-up-for-use-with-latex
But try exporting again and see if the error was accidental.
Update:
Add
\DeclareUnicodeCharacter{00A0}{ }
to your preamble.
Well, the gistfile1.txt at line 54 contains − characters instead of -. I wonder how those characters were generated. What commands did you enter in wxMaxima to generate gistfile1.txt?
Anyway, I find that if I replace those characters with ordinary hyphens, it avoids the error you reported. So perhaps the problem is to avoid generating those characters in the first place.
EDIT: This answer is off the mark. See my other answer for a real solution.
Command :%s:a:b will modify line aaa to line baa. The question is how to get result bbb using only one command (not using :%s:a:b 3 times, what I am doing now :-) ).
You need to add g flag at the end, like this:
:%s:a:b:g
When working with regular expressions this flag commonly means a "global" replacement, i.e. replace all occurrences.
The same technique usually works in other tools too that use regular expressions, for example sed, perl, etc.
UPDATE
I am surprised that such a simple answer still keeps receiving upvotes... So for you vim fans out there I recommend this great site where I still keep learning interesting new stuff: http://vimcasts.org/
remember the 'e' flag
:%s:a:b:e
Have a look at this answer Multiple search and replace in one line
I am using Vim to write my LaTeX files, and figured I'd make a few snippets to help me along. It's been no problem writing simple snippets (like one for begin, one for figure etc.), but then when I tried making one to set the title (with a default value including some curly brackets ({and }), I have this problem. The goal of my snippet is that it creates the following text:
\title{My name\\\texttt{me#email.com}}
I want all the text inside the outmost curly brackets (the ones belonging to title) to be a placeholder. I try to accomplish this by writing the snippet as follows:
\title{${1:My name\\\texttt{me#email.com}}}${2}
My problem, however, is that snipMate seems to use only the name and the email (omitting the closing bracket for the texttt command) as a placeholder.
SnipMate has some known problems with these things, the parsing for nested
braces just doesn't work. Maybe someone knows how to do this, but in the
meantime I suggest you creating two snippets, one for \title and another for
\texttt — just to simplify things a bit.
snippet \ti
\title{${1:My name}}
snippet \te
\texttt{${1:me#email.com}}
I'm loading a text file into a string variable using LoadVars(). For the final version of the code I want to be able to put that text as part of the actionscript code and assign it to the string, instead of loading it from an external file.
Something along the lines of HEREDOC syntax in PHP, or CDATA in AS3 ( http://dougmccune.com/blog/2007/05/15/multi-line-strings-in-actionscript-3/ )
Quick and dirty solutions I've found is to put the text into a text object in a movieclip and then get the value, but I dont like it
Btw: the text is multiline, and can include single quotes and double quotes.
Thanks!
I think in AS2 the only way seems to do it dirty. In AS3 you can embed resources with the Embed tag, but as far as I know not in AS2.
If it's a final version and it means you don't want to edit the text anymore, you could escape the characters and use \n as a line break.
var str = "\'one\' \"two\"\nthree";
trace(str);
outputs:
'one' "two"
three
Now just copy the text into your favourite text editor and change every ' and " to \' and \", also the line breaks to \n.
Cristian, anemgyenge's solution works when you realize it's a single line. It can be selected and replaced in a simple operation.
Don't edit the doc in the code editor. Edit the doc in a doc editor and create a process that converts it to a long string (say running it through a quick PHP script). Take the converted string and paste it in over the old string. Repeat as necessary.
It's way less than ideal from a long-term management perspective, especially if code maintenance gets handed off without you handing off the parser, but it gets around some of your maintenance issues.
Use a new pair of quotes on each line and add a space as the word delimiter:
var foo = "Example of string " +
"spanning multiple lines " +
"using heredoc syntax."
There is a project which may help that adds partial E4X support to ActionScript 2:
as24x
As well as a project which adds E4X support to Haxe, which can compile to a JavaScript target:
E4X Macro for Haxe
I am rather new to VIM. I got some source code and this is a mess. At a first sight I would like at least to get a clear and organised view of the code, so I like to get it rightly formatted, I mean indented depending on the depth of the functions and so.
I wonder if it can be done with VIM, and otherwise which other commandline tools for that can you recommend.
Thanks
While vim is a true Swiss-knife I still prefer external tools for some jobs. This approach is some times much more intuitive and easy to remember than using the built-in equivalent.
In the case of indenting, I filter the whole file buffer through astyle. The astyle parameters are much easier to grasp in a couple of minutes, especially if you are not a vim guru. Also astyle provides much more flexibility in fine-tuning the output.
First install astyle:# apt-get install astyle
Then inside vim:
:%!astyle (simple case - astyle default mode is C/C++)
or
:%!astyle --mode=c --style=ansi -s2 (ansi C++ style, use two spaces per indent level)
or
:1,40!astyle --mode=c --style=ansi (ansi C++ style, filter only lines 1-40)
you can do the following:
gg=G
I would highly recommend clang-format nowadays. It allows simple integration of clang-format into Vim, once you have clang-format installed:
http://clang.llvm.org/docs/ClangFormat.html#vim-integration
It is the only code beautifier that really understands your C++ code, and it is really intelligent to beautify the code more like a human being than a machine. E.g.:
void TestFunction(int argument1, int argument2,
int argument3);
void TestFunctionVeryLongName(int argument1,
int argument2,
int argument3);
void TestFunctionWithRidiculouslyLongName(
int argument1, int argument2, int argument3);
Vim will definitely do this, although the results may not be perfect:
First, select the entire file in visual mode: ggVG
Then hit = to reindent everything.
You can learn more about the equal command with: :help =
There is also a Vim plugin relying on clang-format: vim-clang-format
Then you can simply map the formatting command to whatever suits you.
There is a vim plugin that enables formatting on your code from within vim. It's called vim-autoformat and you can download it here:
https://github.com/vim-autoformat/vim-autoformat
It integrates external code-formatting programs into vim. For example, if you want to format C, C++, C# or Java code, you need to install the program astyle, and vim sets it as the format program automatically.
I don't write C++ code, but I write some Java code.
Instead, Vim supports the formatting of some common languages.
I have set up a short cut for me to format the whole code in the buffer.
It will return to the line I just edited :)
" format the file
map <leader>fm gg=G'.
A generic solution along the lines of m000's idea is to use UniversalIndentGUI as an external tool.
Just had to solve this exact problem, so I thought I'd contribute to save others some time.
You can use gg=G to indent your code. But things get hard to understand the moment you want to tweak how that auto-indenting happens. Therefore, if you only care that errant whitespace is removed and don't really care about formatting style, gg=G is the quickest way to go about it, because its built-in.
If you do want to control the style (for example, you're trying to make your code conform to a style guide), then you're going to need an external tool to process your file. You can invoke that tool from within vim with: :%!<toolname> <options>. This pipes the file through the tool and re-loads the processed result. (You can obviously use this for anything else you want to do to your file too)
So the next question is, what external tool should you choose? Regardless, the method is the same:
Install the tool of choice
Make sure its in your path
Add a line to your vimrc file that creates a shortcut key to use so you save time
Use it.
Now, which tool you use depends on the style you're trying to replicate. If you're trying to replicate a widely used style, then chances are astyle is all you need.
If you're trying to replicate a custom style, then you will need two things:
UniversalIndentGui - a front end that lets you play around with various options and live-preview their effect on the source file
A set of source code formatting tools installed and in your path
Between uncrustify and greatcode, you should be able to completely replicate the style you want.
Actually, I lied. There is another way and its called clang-format. However, you're going to want to read the documentation on it and its still in early stages so some options don't work very well. It is a beautiful tool though (definitely the smartest of the lot because constructs an AST of your code) and it is even available for Windows.
If you're going to take the time to read the manual, you also want to check out GNU Indent.
Of course, there is the last way, which is actually taking the time to learn vim's indent rules and writing one for your style. It will take time, but it will work with gg=G.
Some notes on astyle vs uncrustify vs greatcode:
Astyle is good for general formatting, but can't do things like align the declaration of variables and re-style comments very well.
Uncrustify can do a LOT of stuff that astyle can't, but be prepared to spend an hour playing around until you've found the correct combination of options you need. (Or if you feel like wasting a lot of time, use genetic algorithms to figure out the best combination of options for your style and when you do share the code and give me a link so I can use it too :) )
Note that you don't have to choose one tool. With vim, you can map one keystroke to execute several commands in succession, so theoretically you could use a combination of these tools to get exactly what you're looking for.
Last but not least, here's an excerpt from my .vimrc file, where I have mapped F12 to invoke astyle with some options:
"A2 = attached brackets
"-s8 indent 8 spaces
"-xc attached braces to class declarations
"-xj remove braces for single statement ifs and elses
"-c convert tabs to spaces in the non-indentation part of the line
map <F12> :%!astyle -A2 -s8 -xc -xj -c<CR>
Don't judge me on the style. Just use the tool to reproduce what you want.