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On the wikipedia page only Haskell and Miranda are mentioned.
I am not sure about elm.
Some other languages make it especially easy to declare a function to be computed lazily.
Are there programming languages where you have a global switch, say for a module or script file to be evaluated lazily?
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Aside from being written in haskell, python and ruby, what are the main differences between skylighting, pygments and Linguist?
Do they vary widely in the language support? Do they have different internal structures? To what extent can they be used interchangeably? Are there any automatic tools for comparing the effects of their application (possibly in the vein of babelmark for markdown)?
Is there a list of all the tools/organisations that these different tools are used? Pygments has a list of "who uses pygments", and it's clear that skylighting is used by pandoc and Linguist is used by GitHub, but are there other major tools that use these?
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Which features need to be present in a programming language such that it can express any sequential computation which a computer can excute today? And what if the language is Haskell in specific
Haskell is Turing complete.
My current beliefs have high weight on the outcome that any sound and complete description of "feature sets that guarantee Turing completeness" is either infinite or includes a non-terminating algorithm; so I believe it is not reasonable to expect an answer to your other question.
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I need it to do some entity extraction. How do I get an annotated dataset with JobTitles?
Here is what I suggest to do, if you haven't come across any datasets. Grab wikipedia occupation lists: https://en.wikipedia.org/wiki/Lists_of_occupations, create a gazetteer list of jobs and write regular expressions to capture them or any variations in the text and you have annotated data :).
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The search algorithm I'm implementing (a simple partial order planner) just has a few choices to make at each invocation. Ideally I would like it to backtrack over the possibilities and return the first found solution.
Take a look at the list ([]) monad instance. It's commonly used for non-determinism.
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What advantages do we get by using the lens library over a language like C or Python?
I get that state is still immutable with the lens library, but from a practical perspective, how is it any different?
Examples would be very useful.
EDIT:
What I really want to know is why having immutable state is advantageous/disadvantageous for the lens library, e.g. can we not achieve better performance with lens with mutable state?