diff options
author | Torsten Grote <t@grobox.de> | 2020-03-18 14:24:41 -0300 |
---|---|---|
committer | Torsten Grote <t@grobox.de> | 2020-03-18 14:24:41 -0300 |
commit | a4796ec47d89a851b260b6fc195494547208a025 (patch) | |
tree | d2941b68ff2ce22c523e7aa634965033b1100560 /cashier/src/main/java/net/taler/cashier/Amount.kt | |
download | taler-android-a4796ec47d89a851b260b6fc195494547208a025.tar.gz taler-android-a4796ec47d89a851b260b6fc195494547208a025.tar.bz2 taler-android-a4796ec47d89a851b260b6fc195494547208a025.zip |
Merge all three apps into one repository
Diffstat (limited to 'cashier/src/main/java/net/taler/cashier/Amount.kt')
-rw-r--r-- | cashier/src/main/java/net/taler/cashier/Amount.kt | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/cashier/src/main/java/net/taler/cashier/Amount.kt b/cashier/src/main/java/net/taler/cashier/Amount.kt new file mode 100644 index 0000000..2c237c8 --- /dev/null +++ b/cashier/src/main/java/net/taler/cashier/Amount.kt @@ -0,0 +1,45 @@ +/* + * This file is part of GNU Taler + * (C) 2020 Taler Systems S.A. + * + * GNU Taler is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 3, or (at your option) any later version. + * + * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + * A PARTICULAR PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +package net.taler.cashier + +data class Amount(val currency: String, val amount: String) { + + companion object { + + private val SIGNED_REGEX = Regex("""([+\-])(\w+):([0-9.]+)""") + + @Suppress("unused") + fun fromString(strAmount: String): Amount { + val components = strAmount.split(":") + return Amount(components[0], components[1]) + } + + fun fromStringSigned(strAmount: String): Amount? { + val groups = SIGNED_REGEX.matchEntire(strAmount)?.groupValues ?: emptyList() + if (groups.size < 4) return null + var amount = groups[3].toDoubleOrNull() ?: return null + if (groups[1] == "-") amount *= -1 + val currency = groups[2] + val amountStr = amount.toString() + // only display as many digits as required to precisely render the balance + return Amount(currency, amountStr.removeSuffix(".0")) + } + } + + override fun toString() = "$amount $currency" + +} |