id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
1506,Case-insensitive char/string comparison,Eelis,,"Data.Char provides functions to convert case, but does not provide a function to perform case-insensitive char/string comparison. Note that such functionality cannot be obtained by simply comparing for equality after performing toUpper/toLower, because some languages have things like multiple lowercase characters corresponding to the same uppercase character.

For example, in Greek, converting either σ or ς to uppercase yields Σ, while the inverse always yields σ. Consequently, the convert-all-to-uppercase approach would produce a false positive when comparing σ to ς, and the convert-all-to-lowercase approach would produce a false negative when comparing Σ to ς.",feature request,closed,normal,Not GHC,libraries/base,6.6.1,wontfix,,pho@…,Unknown/Multiple,Unknown/Multiple,,Unknown,,,,