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I tried to write a program some thing like a expression solver to support only the following functions
length();
substr();
concat();
Hence if the user inputs
concat('Int Part : ', substr(5.00+4.00, 0, 1))
the output should be
Int Part : 9
Is there any library to do this or is there any place I can learn how to do this kind of thing.
I guess you should take a look at this: http://en.wikipedia.org/wiki/Recursive_descent_parser
Also, I suggest bison and yacc which are powerful tools for what you need. But they are a bit complex.
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I like to embed QBasic or some subset of VBscript alike script in cpp app .
is there any such thing ?
You can use the ScriptControl (1, 2) or implement an ActiveScriptHost (1, 2)
Update: If you need cross-platform scripting, consider to use Perl, Python, Lua, QTScript, ... instead of Basic.
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Is there any C++ IDE that can display LaTeX formulas in C++ comments as formulas? I envision this as a very handy instrument to document code that implements some math, but in order for it to be useful LaTeX code should be compiled and shown as set of glyphs.
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Currently I'm working in a simple code generator to output an assembly-like language.
Background:
I've already working part of a register allocator but now I need to deal with instructions like mul/div which has fixed registers as input: eax/ebx which I don't know how to deal with it, so I'm looking for see how other implemenations does it. I've tried tcc. While the code is very small I find a bit hard to understand.
NOTE: I'm targeting C/C++ because it's the languages I'm more familiar with, but implementation in any language is very welcome.
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Closed 9 years ago.
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I just heard that flex is "abandonware". I am using it now with some difficulty, is there a replacement Regular Expression generator compatible with bison?
Flex isn't deprecated, I think you confused Adobe Flex (framework) and Flex (lexical analyser generator).
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I wish to generate a graph with a date on the X axis and price on the Y, are there any decent libraries out there which will help me accomplish this with very little overhead?
thanks in advance
I really like qwt, but this is not low overhead. maybe gplot, but give more info about your contaxt perharps.
http://qwt.sourceforge.net/
http://gplot.sourceforge.net/