RosettaCodeData/Task/Read-a-configuration-file/Lasso/read-a-configuration-file.lasso
2016-12-05 23:44:36 +01:00

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local(config = '# This is a configuration file in standard configuration file format
#
# Lines beginning with a hash or a semicolon are ignored by the application
# program. Blank lines are also ignored by the application program.
# This is the fullname parameter
FULLNAME Foo Barber
# This is a favourite fruit
FAVOURITEFRUIT = banana
# This is a boolean that should be set
NEEDSPEELING
# This boolean is commented out
; SEEDSREMOVED
# Configuration option names are not case sensitive, but configuration parameter
# data is case sensitive and may be preserved by the application program.
# An optional equals sign can be used to separate configuration parameter data
# from the option name. This is dropped by the parser.
# A configuration option may take multiple parameters separated by commas.
# Leading and trailing whitespace around parameter names and parameter data fields
# are ignored by the application program.
OTHERFAMILY Rhu Barber, Harry Barber
')
// if config is in a file collect it like this
//local(config = file('path/and/file.name') -> readstring)
define getconfig(term::string, config::string) => {
local(
regexp = regexp(-find = `(?m)^` + #term + `($|\s*=\s*|\s+)(.*)$`, -input = #config, -ignorecase),
result
)
while(#regexp -> find) => {
#result = (#regexp -> groupcount > 1 ? (#regexp -> matchString(2) -> trim& || true))
if(#result -> asstring >> ',') => {
#result = #result -> split(',')
#result -> foreach => {#1 -> trim}
}
return #result
}
return false
}
local(
fullname = getconfig('FULLNAME', #config),
favorite = getconfig('FAVOURITEFRUIT', #config),
sedsremoved = getconfig('SEEDSREMOVED', #config),
needspeel = getconfig('NEEDSPEELING', #config),
otherfamily = getconfig('OTHERFAMILY', #config)
)
#fullname
'<br />'
#favorite
'<br />'
#sedsremoved
'<br />'
#needspeel
'<br />'
#otherfamily
'<br />'