17dd252788645e940eada959bdde927426e2531c9Paul Duffin/* 27dd252788645e940eada959bdde927426e2531c9Paul Duffin * Copyright (C) 2011 The Guava Authors 37dd252788645e940eada959bdde927426e2531c9Paul Duffin * 47dd252788645e940eada959bdde927426e2531c9Paul Duffin * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 57dd252788645e940eada959bdde927426e2531c9Paul Duffin * in compliance with the License. You may obtain a copy of the License at 67dd252788645e940eada959bdde927426e2531c9Paul Duffin * 77dd252788645e940eada959bdde927426e2531c9Paul Duffin * http://www.apache.org/licenses/LICENSE-2.0 87dd252788645e940eada959bdde927426e2531c9Paul Duffin * 97dd252788645e940eada959bdde927426e2531c9Paul Duffin * Unless required by applicable law or agreed to in writing, software distributed under the 107dd252788645e940eada959bdde927426e2531c9Paul Duffin * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 117dd252788645e940eada959bdde927426e2531c9Paul Duffin * express or implied. See the License for the specific language governing permissions and 127dd252788645e940eada959bdde927426e2531c9Paul Duffin * limitations under the License. 137dd252788645e940eada959bdde927426e2531c9Paul Duffin */ 147dd252788645e940eada959bdde927426e2531c9Paul Duffin 157dd252788645e940eada959bdde927426e2531c9Paul Duffinpackage com.google.common.primitives; 167dd252788645e940eada959bdde927426e2531c9Paul Duffin 177dd252788645e940eada959bdde927426e2531c9Paul Duffinimport com.google.common.annotations.GwtCompatible; 187dd252788645e940eada959bdde927426e2531c9Paul Duffin 197dd252788645e940eada959bdde927426e2531c9Paul Duffin/** 207dd252788645e940eada959bdde927426e2531c9Paul Duffin * A string to be parsed as a number and the radix to interpret it in. 217dd252788645e940eada959bdde927426e2531c9Paul Duffin */ 227dd252788645e940eada959bdde927426e2531c9Paul Duffin@GwtCompatible 237dd252788645e940eada959bdde927426e2531c9Paul Duffinfinal class ParseRequest { 247dd252788645e940eada959bdde927426e2531c9Paul Duffin final String rawValue; 257dd252788645e940eada959bdde927426e2531c9Paul Duffin final int radix; 267dd252788645e940eada959bdde927426e2531c9Paul Duffin 277dd252788645e940eada959bdde927426e2531c9Paul Duffin private ParseRequest(String rawValue, int radix) { 287dd252788645e940eada959bdde927426e2531c9Paul Duffin this.rawValue = rawValue; 297dd252788645e940eada959bdde927426e2531c9Paul Duffin this.radix = radix; 307dd252788645e940eada959bdde927426e2531c9Paul Duffin } 317dd252788645e940eada959bdde927426e2531c9Paul Duffin 327dd252788645e940eada959bdde927426e2531c9Paul Duffin static ParseRequest fromString(String stringValue) { 337dd252788645e940eada959bdde927426e2531c9Paul Duffin if (stringValue.length() == 0) { 347dd252788645e940eada959bdde927426e2531c9Paul Duffin throw new NumberFormatException("empty string"); 357dd252788645e940eada959bdde927426e2531c9Paul Duffin } 367dd252788645e940eada959bdde927426e2531c9Paul Duffin 377dd252788645e940eada959bdde927426e2531c9Paul Duffin // Handle radix specifier if present 387dd252788645e940eada959bdde927426e2531c9Paul Duffin String rawValue; 397dd252788645e940eada959bdde927426e2531c9Paul Duffin int radix; 407dd252788645e940eada959bdde927426e2531c9Paul Duffin char firstChar = stringValue.charAt(0); 417dd252788645e940eada959bdde927426e2531c9Paul Duffin if (stringValue.startsWith("0x") || stringValue.startsWith("0X")) { 427dd252788645e940eada959bdde927426e2531c9Paul Duffin rawValue = stringValue.substring(2); 437dd252788645e940eada959bdde927426e2531c9Paul Duffin radix = 16; 447dd252788645e940eada959bdde927426e2531c9Paul Duffin } else if (firstChar == '#') { 457dd252788645e940eada959bdde927426e2531c9Paul Duffin rawValue = stringValue.substring(1); 467dd252788645e940eada959bdde927426e2531c9Paul Duffin radix = 16; 477dd252788645e940eada959bdde927426e2531c9Paul Duffin } else if (firstChar == '0' && stringValue.length() > 1) { 487dd252788645e940eada959bdde927426e2531c9Paul Duffin rawValue = stringValue.substring(1); 497dd252788645e940eada959bdde927426e2531c9Paul Duffin radix = 8; 507dd252788645e940eada959bdde927426e2531c9Paul Duffin } else { 517dd252788645e940eada959bdde927426e2531c9Paul Duffin rawValue = stringValue; 527dd252788645e940eada959bdde927426e2531c9Paul Duffin radix = 10; 537dd252788645e940eada959bdde927426e2531c9Paul Duffin } 547dd252788645e940eada959bdde927426e2531c9Paul Duffin 557dd252788645e940eada959bdde927426e2531c9Paul Duffin return new ParseRequest(rawValue, radix); 567dd252788645e940eada959bdde927426e2531c9Paul Duffin } 577dd252788645e940eada959bdde927426e2531c9Paul Duffin} 58