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Server side web scripting in Haskell

Published online by Cambridge University Press:  01 January 2000

ERIK MEIJER
ERIK MEIJER
Affiliation:
Department of Computer Science, Utrecht University, PO Box 80089, 3508 TB Utrecht, The Netherlands (e-mail: erik@cs.uu.nl)
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Abstract

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The Common Gateway Interface (CGI) for generating dynamic documents on web servers imposes much accidental complexity on the programmer. The Haskell/CGI library documented in this paper hides all this unpleasantness by using the common sense ‘design pattern’ of separating model and presentation. Low-level query string requests are represented by association lists, and primitive HTTP responses are easily constructed using a set of HTML generating combinators. The CGI programmer only needs to write a worker function that maps an abstract request into an abstract response. A (higher-order) wrapper function then transmutes the worker into a real low-level CGI script that deals with the exact format of concrete requests and responses as required by the CGI standard.

Type
Research Article
Information
Journal of Functional Programming , Volume 10 , Issue 1 , January 2000 , pp. 1 - 18
Copyright
© 2000 Cambridge University Press
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