units-of-measurement

I'm developing a Web application using F#. Thinking of protecting user input strings from SQL, XSS, and other vulnerabilities. In two words, I need some compile-time constraints that would allow me discriminate plain strings from those representing SQL, URL, XSS, XHTML, etc. Many languages have it, e.g. Ruby’s native string-interpolation feature #{...} . With F#, it seems that Units of Measure do very well, but they are only available for numeric types. There are several solutions employing runtime UoM (link) , however I think it's an overhead for my goal. I've looked into FSharpPowerPack, and

I am a visual designer, working on an android design and I"m trying to spec my PSD file for our engineers. I cannot seem to find any documentation regarding the conversion of point size to SP for the type in any Android documentation. (Just that SP should be used for type). The problem is that it depends on the density. Really, they're not good measurements to try to compare. Points : There are 12 points in a pica, 6 picas per inch, so 72 (more accurately 72.27) points per inch. Device-Independent Pixels (DP) : These will be equal to the pixel size for MDPI displays, 1.5x the pixel size for

How do I know which is the default measure system (imperial or metric) on iOS ? How do I get this preference from the device settings, so I know what to display in my app ? thanks The NSLocale can tell you: NSLocale *locale = [NSLocale currentLocale]; BOOL isMetric = [[locale objectForKey:NSLocaleUsesMetricSystem] boolValue]; Only three countries do not use the metric system: the US, Liberia and Myanmar. The later uses its own system, the former two use Imperial Units. Apples documentation says (emphasis mine): NSLocaleUsesMetricSystem The key for the flag that indicates whether the locale

I'm working on a project that lets users track different data types over time. Part of the base idea is that a user should be able to enter data using any units that they need to. I've been looking at both units: http://pypi.python.org/pypi/units/ and quantities: http://pypi.python.org/pypi/quantities/ However I'm not sure the best way to go. From what I can tell, quantities is more complex, but includes a better initial list of units. Christopher Bruns I applaud use of explicit units in scientific computing applications. Using explicit units is analogous brushing your teeth. It adds some