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[[!comment format=mdwn
username="joey"
subject="""comment 3"""
date="2015-08-06T14:54:14Z"
content="""
I'd suggest making it take some helper functions.
Something like these:
type SectionStart = String -> Bool -- ^ find the line that is the start of the wanted section (eg, == "<Foo>")
type SectionEnd = String -> Bool -- ^ find a line that is within the section, but that indicates the end of the section (eg == "</Foo>")
type SectionPast = String -> Bool -- ^ find a line that indicates we are past the section (eg, a new section header)
type AdjustSection = [String] -> [String] -- ^ run on all lines in the section, including the SectionStart line and any SectionEnd line; can add/delete/modify lines, or even delete entire section
type InsertSection = [String] -> [String] -- ^ if SectionStart does not find the section in the file, this is used to insert the section somewhere within it
adjustSection :: SectionStart -> SectionEnd -> AdjustSection -> InsertSection -> FilePath -> Property
Which seems sufficiently generic; it can even be used to delete entire sections!
Let's see..
iniHeader header = '[':header++"]"
adjustIniSection :: String -> AdjustSection -> InsertSection -> Property
adjustIniSection header = adjustSection
(== iniHeader header)
(const False)
("[" `isPrefixOf`)
containsConfPair header key value = adjustIniSection header
go
(++ [confheader, confline]) -- add missing section at end
where
confheader = iniHeader header
confline = key ++ "=" ++ value
go ls = undefined -- TODO find key= line and change it, or add confline
removeSection header = adjustIniSection header
(const []) -- remove all lines of section
id -- add no lines if section is missing
"""]]
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