For a tool I'm writing ( http://hackage.haskell.org/package/explore ) I need a way to read haskell function definitions at run-time, apply them to values from my tool and retrieve the results of their application. Can anyone give me a very basic example using GHC (6.10.4 or 6.12.1) API? example function definition to be read from a fil...
There is function in python called eval that takes string input and evaluates it. >>> x = 1 >>> print eval('x+1') 2 >>> print eval('12 + 32') 44 >>> What is Haskell equivalent of eval function? ...
echo 3+3 How can I evaluate such expressions in Bash, in this case to 6? ...
I've a simple product installer for windows OS, which could be evaluated for a month. What are the techniques I can use so that this piece of software is not used after a month? I've seen that several s/w use system date to check it but it's very primitive and easily forge-able. I think a key based system based on registry or online veri...
I'm going to choose a topic for my thesis and it will be a HCI project. (human computer interaction). It will be a research project, and I need to think some kind of evaluation for it. I would prefer to not use human users or having to collaborate with psychologist for it. Is there any metric, or evaluation models I could use instead ?...
On a website I have a number of small PHP scripts to automate changes to the text of the site, depending on a figure that's calculated from a MySQL database. The site is for a fundraising group, and the text in question on the home page gives the total amount raised. The amount raised is pulled from the database and rounded to the neare...
Say i create one object and add it to my ArrayList. If I then create another object with exactly the same constructor input, will the contain() method evaluate the two objects to be the same? Assume the constructor doesn't do anything funny with the input, and the variables stored in both objects are identical. ArrayList<Thing> basket =...
I was under the impression that the express version of Visual C++ 2010 was free for commercial use. However, when I start it up, the slash screen says that the app is for evaluation use only. What gives? ...
I have just completed an evaluation of Java, Groovy and Scala. The factors I considered were: readability, precision The factors I would like to know: performance, ease of integration I needed a BigDecimal level of precision. Here are my results: Java void someOp() { BigDecimal del_theta_1 = toDec(6); BigDecimal del_theta_2...
Hi, I wanna do some local developer tests of IIS 7 but I don't have Windows Vista, 7 or 2008 server - I currently run XP SP3. I have Virtual PC installed so I can use Microsoft's IE compatibility images - are there any time-limited images that I can use with Virtual PC so I can check out IIS 7? The IIS 7 "Try it" link points to this p...
I was looking at an article on Peter Norvig's website, where he's trying to answer the following question (this is not my question, btw) "Can I do the equivalent of (test ? result : alternative) in Python?" here's one of the options listed by him, def if_(test, result, alternative=None): "If test is true, 'do' result, else alterna...
I'm working in J2EE web project, which has lots of Java, SQL scripts, JS, AJAX stuff. Its been 5 years for project still running fine. I have assigned with work of performance evaluation on the project as there might be some memory usage issues, DB fetching logic delays and other similar weak performance areas. From where should I begin...
I would like to know what kind of applications are suitable to be developed on top of Sharepoint 2010 and which should not be built on to of it. So when to embrace/avoid Sharepoint 2010 as a development platform for new web applications. Addendum Would you as a sharepoint development specialist choose it as a platform for your next ent...
Hey guys, simple question... Working with XLISP to write a program, but I've seemed to run into a simple fundamental problem that I can't seem to work around: perhaps someone has a quick fix. I'm trying to write an if statement who's then-clause evaluates multiple forms and returns the value of the last. In example: (setq POSITION 'D...
I need to develop a performance evaluator for piano playing. Based on a midi generated from sheet music, I need to evaluate the midi of the actual playing (midi keyboard). I'm planning to evaluate the playing based on note pitch, duration and loudness. The evaluation is I suppose a comparison of the notes of the sheet music and playing i...
Hi to everyone! I'm working in a homework, and the professor asked me to implement the evaluation strategy called "call by name" in scheme in a certain language that we developed and he gave us an example at http://www.scala-lang.org/node/138 in the scala language, but i don't understand in what consists the call by name evaluation stra...
Hi guys, A school project has me writing a Date game in C++ (example at http://www.cut-the-knot.org/Curriculum/Games/Date.shtml) where the computer player must implement a Minimax algorithm with alpha-beta pruning. Thus far, I understand what the goal is behind the algorithm in terms of maximizing potential gains while assuming the oppo...
Hi I need to compare 2 sets of musical pieces (i.e. a playing-taken in MIDI format-note details extracted and saved in a database table, against sheet music-taken into XML format). When evaluating playing against sheet music (i.e.note details-pitch, duration, rhythm), note alignment needs to be done - to identify missed/extra/incorrect/...
I've come across a fairly obscure problem having to do with measuring a document's height before the styling has been applied by the browser. More information here: http://sonspring.com/journal/jquery-iframe-sizing http://ajaxian.com/archives/safari-3-onload-firing-and-bad-timing In Dave Hyatt's comment from June 27, he advises simp...
Here's my configuration: I have a re-runnable batch script that I use to update my database. Inside of that batch script, I have code that says the following: If Table 'A' doesn't exist, then create Table 'A' and insert rows into it. Later on in that batch script, I create an schemabound indexed view on that table. And if you didn't...