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add a basic .ics file parser implementation

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This commit is contained in:
tibbi 2017-01-25 20:58:52 +01:00
parent 551e59b780
commit 4be4eab18d
1 changed files with 56 additions and 0 deletions
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app/src/main/kotlin/com/simplemobiletools/calendar/helpers/IcsParser.kt Normal file
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package com.simplemobiletools.calendar.helpers
import android.content.Context
import com.simplemobiletools.calendar.R
import com.simplemobiletools.calendar.models.Event
object IcsParser {
private val BEGIN_EVENT = "BEGIN:VEVENT"
private val BEGIN_ALARM = "BEGIN:VALARM"
private val END = "END:VEVENT"
private val DTSTART = "DTSTART:"
private val DTEND = "DTEND:"
private val SUMMARY = "SUMMARY:"
private val DESCRIPTION = "DESCRIPTION:"
var curStart = -1
var curEnd = -1
var curTitle = ""
var curDescription = ""
fun parseIcs(context: Context) {
val inputStream = context.resources.openRawResource(R.raw.sample)
inputStream.bufferedReader().use {
while (true) {
val line = it.readLine()?.trim() ?: break
if (line == BEGIN_EVENT) {
resetValues()
} else if (line.startsWith(DTSTART)) {
val datetime = line.substring(DTSTART.length)
curStart = 0
} else if (line.startsWith(DTEND)) {
val datetime = line.substring(DTEND.length)
curEnd = 0
} else if (line.startsWith(SUMMARY)) {
curTitle = line.substring(SUMMARY.length)
} else if (line.startsWith(DESCRIPTION)) {
curDescription = line.substring(DESCRIPTION.length)
} else if (line == END || line == BEGIN_ALARM) {
if (curTitle.isEmpty() || curStart == -1 || curEnd == -1)
continue
val event = Event(0, 0, 0, curTitle, curDescription)
resetValues()
}
}
}
}
fun resetValues() {
curStart = -1
curEnd = -1
curTitle = ""
curDescription = ""
}
}