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/**
* "The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
* The Original Code is OpenVBX, released February 18, 2011.
* The Initial Developer of the Original Code is Twilio Inc.
* Portions created by Twilio Inc. are Copyright (C) 2010.
* All Rights Reserved.
* Contributor(s):
**/
#import "VBXVersion.h"
@implementation VBXVersion
@synthesize patchlevel = _patchlevel;
@synthesize major = _major;
@synthesize minor = _minor;
- (VBXVersion *)initWith:(int) major minor:(int) minor patchlevel:(int) patchlevel {
if (self = [super init]) {
self.major = major;
self.minor = minor;
self.patchlevel = patchlevel;
}
return self;
}
+ (VBXVersion *)fromString:(NSString *)versionString {
const char *vstr, *vend;
int i = 0, versions[3] = {0, 0, 0};
if(![versionString length]) {
[NSException raise:NSGenericException format:@"Expected versionString more than zero characters long ???"];
}
vstr = [versionString cStringUsingEncoding:NSASCIIStringEncoding];
/* strtol converts up until the first non-numeric character, which is pointed to by vend.
we use this to walk along the version string. */
do {
versions[i++] = strtol(vstr, &vend, 10);
if( !*vend )
break;
vstr = vend + 1;
} while( i < (sizeof(versions) / sizeof(int)) );
if( !i )
[NSException raise:NSGenericException format:@"No numeric values in versionString"];
return [[VBXVersion alloc] initWith:versions[0] minor:versions[1] patchlevel:versions[2]];
}
- (VBXVersionComparison)compareVersion:(NSString *)comparedVersionString {
VBXVersion *compareTo = [[VBXVersion fromString:comparedVersionString] autorelease];
VBXVersionComparison ret = 0;
int comparison;
#define COMPARE(prop, uprop)\
if( (comparison = (self.prop - compareTo.prop)) ) {\
if( comparison > 0 )\
ret |= uprop##_GREATER;\
else\
ret |= uprop##_LESSER;\
} else\
ret |= uprop##_EQUAL;
COMPARE(major, MAJOR);
COMPARE(minor, MINOR);
COMPARE(patchlevel, PATCHLEVEL);
#undef COMPARE
return ret;
}
@end
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