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Search found 636 results on 26 pages for 'interpreter'.

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• Why must recursion be in a separate file in hugs?

  - by Casebash

  In Haskell in 5 steps the factorial function is defined as follows: let fac n = if n == 0 then 1 else n * fac (n-1) But for hugs, it says that fac needs to be in fac.h. Can anyone explain why this is the case - missing the ability to define recursion seems like a massive limitation for an interpreter.

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• Embedding tcl in ruby

  - by Jordan

  Is there any way to do this? It seems the only possible way to do this is by using ruby/tk and creating a tcl interpreter through that api. However, I'd like to use this on a system with no GUI (x windows). Am I out of options? Thanks

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• How to implement continuations?

  - by Kyle Cronin

  I'm working on a Scheme interpreter written in C. Currently it uses the C runtime stack as its own stack, which is presenting a minor problem with implementing continuations. My current solution is manual copying of the C stack to the heap then copying it back when needed. Aside from not being standard C, this solution is hardly ideal. What is the…

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• What is a good project structure in C

  - by mohit

  Hi, I have been working in Java/J2ee projects, in which I follow the Maven structure. I want to develop [say a command line interpreter in linux {ubuntu}] in C. I never develop projects in C. I want to know what project structure I should follow.

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• Are there any strongly typed scripting languages?

  - by George Edison

  I am wondering if there are any strongly typed scripting languages. Python, JavaScript, etc. are great languages, but they are (to a certain degree) loosely typed. I am just wondering if anyone knows of any strongly typed scripting languages. And by scripting, I mean a language whose interpreter can be embedded in a C++ application.

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• Python try...except comma vs 'as' in except

  - by peter

  What is the difference between ',' and 'as' in except statements, eg: try: pass except Exception, exception: pass and: try: pass except Exception as exception: pass Is the second syntax legal in 2.6? It works in CPython 2.6 on Windows but the 2.5 interpreter in cygwin complains that it is invalid. If they are both valid in…

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• Exit to command line in Python

  - by fuenfundachtzig

  I have a script that I want to exit early under some condition: if not "id" in dir(): print "id not set, cannot continue" # exit here! # otherwise continue with the rest of the script... print "alright..." [ more code ] I run this script using execfile("foo.py") from the Python interactive prompt and I would like the script to exit…

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• Why optional parameters must appear at the end of the declaration

  - by Incognito

  In all programming languages supporting optional parameters that I have seen there is a imitation that the optional parameters must appear at the end of the declaration. No required parameters may be included after an optional item. What is the reason for that ? I guess it can be compiler/interpreter requirement.

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• What is the Good project Structure in C

  - by mohit

  Hi, I have been working in Java/J2ee projects, in which i follow maven structure. I want to develop [say a command line interpreter in linux {ubuntu}] in C. I never develop projects in C. I want to know what project structure should i follow.

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• where can I find the php.ini for php-cli

  - by Elzo Valugi

  It appears that the php command line is using a different php.ini from the main php interpreter. I am using Ubuntu 10.4. My problem is that in the main php.ini I have included an extra path for an external library, but in the cli version this is not present, and so I have a path inclusion error. thanks

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• Would someone mind giving suggestions for this new assembly language?

  - by Noctis Skytower

  Greetings! Last semester in college, my teacher in the Computer Languages class taught us the esoteric language named Whitespace. In the interest of learning the language better with a very busy schedule (midterms), I wrote an interpreter and assembler in Python. An assembly language was designed to facilitate writing programs easily, and a…

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• R from C -- Simplest Possible Helloworld...

  - by jsight

  What is the simplest possible C function for starting the R interpreter, passing in a small expression (eg, 2+2), and getting out the result? I'm trying to compile with MingW on Windows.

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• Do you know any other programming languages that have interactive mode like Python?

  - by systempuntoout

  Python language has a well known feature named interactive mode where interpreter can read commands directly from tty. I tipically use this mode to test if a given module is in the classpath or to play around and test some snippets. Do you know any other programming languages that has Interactive Mode?

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• Creating a list in Python- something sneaky going on?

  - by GlenCrawford

  Apologies if this doesn't make any sense, I'm very new to Python! From testing in an interpreter, I can see that list() and [] both produce an empty list: >>> list() [] >>> [] [] From what I've learned so far, the only way to create an object is to call its constructor (__init__), but I don't see this happening when I…

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• Invoke Python modules from Java

  - by user36813

  I have a Python interface of a graph library written in C - igraph (the name of library). My need is to invoke the python modules pertaining to this graph library from Java code. It goes like this, the core of library is in c. This core has been imported into Python and interfaces to the functions embedded in core are available in Python.…

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• Handles and pointer to object

  - by Tony

  I have a python Interpreter written in C++, the PyRun_String function from the Python API is said to return a handle, however in my code I have it assigned to pointer to a PyObject? PyObject* presult = PyRun_String(code, parse_mode, dict, dict); Is this actually correct? Can you implicitly cast this handle to this object pointer? …

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• Has anyone here tried using the iSeries Python port?

  - by nearly_lunchtime

  I found http://www.iseriespython.com/, which is a version of Python for the iSeries apparently including some system specific data access classes. I am keen to try this out, but will have to get approval at work to do so. My questions are: Does the port work well, or are there limits to what the interpreter can handle compared with…

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• Ruby in DOS CLI, How to do?

  - by Daniel

  I see in a lot of the tutorials and how to pages, they use the following, or something similar ruby C:\test.rb Which would parse test.rb to the interpreter and ... execute the script. But how is this done a on a windows? Ruby isn't a recognized internal command (as per the DOS output)? I know how to do all these things on Linux,…

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• In which scenario it is useful to use Disassembly on python?

  - by systempuntoout

  The dis module can be effectively used to disassemble Python methods, functions and classes into low-level interpreter instructions. I know that dis information can be used for: 1. Find race condition in programs that use threads 2. Find possible optimizations From your experience, do you know any other scenarios where…

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• Generate .NET Assemblies from Iron Python

  - by Leo Bontemps

  I have a Iron Python script that I want to run and then have the ipy interpreter output an assembly that I can run on other machines. How do I do that? Is there a siwtch I can pass to ipy.exe?

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• How GAE emulator limits list of available Python modules?

  - by Konstantin

  I installed Python Mock module using PIP. When I try to import mock running under 'dev_appserver', GAE says that it can't find module 'mock'. import mock works perfectly in Python interpreter. I understand that dev_appserver behaves absolutely correctly because I can't install modules with PIP on GAE servers. My…

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• Python large variable RAM useage

  - by PPTim

  Hi, Say there is a dict variable that grows very large during runtime- up into millions of key:value pairs. Does this variable get stored in RAM,effectively using up all the available memory and slowing down the rest of the system? Asking the interpreter to display the entire dict is a bad idea, but would it be…

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• How to call Cocoa Methods from Applescript under Mac OS X 10.6

  - by Nico

  In former Mac OS x versions it was possible to call Cocoa methods via the "call method" command in applescript ("Applescript Studio"). E.g. this way: set theURL to "http://www.apple.com" set URLWithString to (call method "stringByAddingPercentEscapesUsingEncoding:" of theURL with parameter 30) The script…

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• How to convert a string with escaped characters into a "normal" string

  - by M28

  Let's say that I have like this: "\\n", I need to convert it to a string like if the interpreter would do it: \n. A simple replace like this wouldn't work: function aaa(s){ return s.replace(/\\n/gm,'\n').replace(/\\\\/gm,'\\'); } I need this behaviour: "Line 1\nLine 2" = Line 1<Line…

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• Any C/C++ to non-native bytecode compiler/interpreters?

  - by Matt

  As the title indicates, are there any C/C++ bytecode compilers/interpreters? I'm writing an application in an interpreted language that depends on certain libraries that are fully cross-compilable (there are no special flags to indicate code changes during compilation for a certain platform) but…

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