Update a configuration file: Difference between revisions
Added Kotlin
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Line 2,053:
NUMBEROFBANANAS 1024
NUMBEROFSTRAWBERRIES 62000</pre>
=={{header|Kotlin}}==
{{trans|FreeBASIC}}
<lang scala>// version 1.2.0
import java.io.File
class ConfigData(
val favouriteFruit: String,
val needsPeeling: Boolean,
val seedsRemoved: Boolean,
val numberOfBananas: Int,
val numberOfStrawberries: Int
)
fun updateConfigFile(fileName: String, cData: ConfigData) {
val inp = File(fileName)
val lines = inp.readLines()
val tempFileName = "temp_$fileName"
val out = File(tempFileName)
val pw = out.printWriter()
var hadFruit = false
var hadPeeling = false
var hadSeeds = false
var hadBananas = false
var hadStrawberries = false
for (line in lines) {
if (line.isEmpty() || line[0] == '#') {
pw.println(line)
continue
}
val ln = line.trimStart(';').trim(' ', '\t').toUpperCase()
if (ln.isEmpty()) continue
if (ln.take(14) == "FAVOURITEFRUIT") {
if (hadFruit) continue
hadFruit = true
pw.println("FAVOURITEFRUIT ${cData.favouriteFruit}")
}
else if (ln.take(12) == "NEEDSPEELING") {
if (hadPeeling) continue
hadPeeling = true
if (cData.needsPeeling)
pw.println("NEEDSPEELING")
else
pw.println("; NEEDSPEELING")
}
else if (ln.take(12) == "SEEDSREMOVED") {
if (hadSeeds) continue
hadSeeds = true
if (cData.seedsRemoved)
pw.println("SEEDSREMOVED")
else
pw.println("; SEEDSREMOVED")
}
else if(ln.take(15) == "NUMBEROFBANANAS") {
if (hadBananas) continue
hadBananas = true
pw.println("NUMBEROFBANANAS ${cData.numberOfBananas}")
}
else if(ln.take(20) == "NUMBEROFSTRAWBERRIES") {
if (hadStrawberries) continue
hadStrawberries = true
pw.println("NUMBEROFSTRAWBERRIES ${cData.numberOfStrawberries}")
}
}
if (!hadFruit) {
pw.println("FAVOURITEFRUIT ${cData.favouriteFruit}")
}
if (!hadPeeling) {
if (cData.needsPeeling)
pw.println("NEEDSPEELING")
else
pw.println("; NEEDSPEELING")
}
if (!hadSeeds) {
if (cData.seedsRemoved)
pw.println("SEEDSREMOVED")
else
pw.println("; SEEDSREMOVED")
}
if (!hadBananas) {
pw.println("NUMBEROFBANANAS ${cData.numberOfBananas}")
}
if (!hadStrawberries) {
pw.println("NUMBEROFSTRAWBERRIES ${cData.numberOfStrawberries}")
}
pw.close()
inp.delete()
out.renameTo(inp)
}
fun main(args: Array<String>) {
val fileName = "config.txt"
val cData = ConfigData("banana", false, true, 1024, 62000)
updateConfigFile(fileName, cData)
}</lang>
Contents of file 'config.txt' after updating:
<pre>
# This is a configuration file in standard configuration file format
#
# Lines begininning with a hash or a semicolon are ignored by the application
# program. Blank lines are also ignored by the application program.
# The first word on each non comment line is the configuration option.
# Remaining words or numbers on the line are configuration parameter
# data fields.
# Note that configuration option names are not case sensitive. However,
# configuration parameter data is case sensitive and the lettercase must
# be preserved.
# This is a favourite fruit
FAVOURITEFRUIT banana
# This is a boolean that should be set
; NEEDSPEELING
# This boolean is commented out
SEEDSREMOVED
# How many bananas we have
NUMBEROFBANANAS 1024
NUMBEROFSTRAWBERRIES 62000
</pre>
=={{header|Lasso}}==
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