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Cache standard character sets.
([NSCharacterSet +initialize]): New method. ([NSCharacterSet _bitmapForSet:number:]): Return set from cache if available, otherwise find bitmap file and add to cache. All callers changed. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1667 72102866-910b-0410-8b05-ffd578937521
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mccallum
parent
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commit
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1 changed files with 69 additions and 52 deletions
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@ -1,5 +1,5 @@
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/* NSCharacterSet - Character set holder
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Copyright (C) 1993,1994 Free Software Foundation, Inc.
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Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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Written by: Adam Fedor <fedor@boulder.colorado.edu>
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Date: Apr 1995
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@ -25,14 +25,33 @@
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#include <Foundation/NSException.h>
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#include <Foundation/NSBundle.h>
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#include <Foundation/NSData.h>
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#include <Foundation/NSLock.h>
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/* FIXME: Where should bitmaps go? Maybe should be defined with configure */
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#ifndef BITMAP_PATH
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#define BITMAP_PATH @"/usr/local/share/objects"
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#endif
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/* A simple array for caching standard bitmap sets */
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#define MAX_STANDARD_SETS 12
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static NSCharacterSet* cache_set[MAX_STANDARD_SETS];
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static NSLock* cache_lock = nil;
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@implementation NSCharacterSet
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+ (void) initialize
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{
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static BOOL one_time = NO;
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if (one_time == NO)
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{
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int i;
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for (i = 0; i < MAX_STANDARD_SETS; i++)
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cache_set[i] = 0;
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one_time = YES;
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}
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}
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/* Provide a default object for allocation */
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+ allocWithZone:(NSZone *)zone
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{
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@ -41,114 +60,112 @@
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// Creating standard character sets
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+ (NSData *)_bitmapForSet:(NSString *)setname
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+ (NSCharacterSet *) _bitmapForSet: (NSString *)setname number: (int)number
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{
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NSCharacterSet* set;
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NSString *path;
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path = [NSBundle pathForResource:setname
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ofType:@".dat"
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if (!cache_lock)
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cache_lock = [NSLock new];
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[cache_lock lock];
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set = nil; /* Quiet warnings */
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if (cache_set[number] == nil)
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{
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NS_DURING
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path = [NSBundle pathForResource:setname
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ofType:@"dat"
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inDirectory:BITMAP_PATH
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withVersion:0];
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/* This is for testing purposes */
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if (path == nil || [path length] == 0)
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{
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path = [NSBundle pathForResource:setname
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ofType:@".dat"
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inDirectory:@"../share"
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/* This is for testing purposes */
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if (path == nil || [path length] == 0)
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{
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path = [NSBundle pathForResource:setname
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ofType:@"dat"
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inDirectory:@"../NSCharacterSets"
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withVersion:0];
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}
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}
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if (path == nil || [path length] == 0)
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{
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[NSException raise:NSGenericException
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format:@"Could not find bitmap file %s", [setname cString]];
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/* NOT REACHED */
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}
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if (path == nil || [path length] == 0)
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{
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[NSException raise:NSGenericException
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format:@"Could not find bitmap file %s", [setname cString]];
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/* NOT REACHED */
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}
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return [NSData dataWithContentsOfFile:path];
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set = [self characterSetWithBitmapRepresentation:
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[NSData dataWithContentsOfFile: path]];
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cache_set[number] = set;
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NS_HANDLER
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[cache_lock unlock];
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[exception raise];
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NS_ENDHANDLER
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}
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else
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set = cache_set[number];
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[cache_lock unlock];
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return set;
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}
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+ (NSCharacterSet *)alphanumericCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"alphanumCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"alphanumCharSet" number: 0];
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}
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+ (NSCharacterSet *)controlCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"controlCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"controlCharSet" number: 1];
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}
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+ (NSCharacterSet *)decimalDigitCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"decimalCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"decimalCharSet" number: 2];
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}
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+ (NSCharacterSet *)decomposableCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"decomposableCharSet"];
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fprintf(stderr, "Warning: Decomposable set not yet fully specified\n");
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"decomposableCharSet" number: 3];
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}
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+ (NSCharacterSet *)illegalCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"illegalCharSet"];
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fprintf(stderr, "Warning: Illegal set not yet fully specified\n");
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"illegalCharSet" number: 4];
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}
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+ (NSCharacterSet *)letterCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"lettercharCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"lettercharCharSet" number: 5];
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}
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+ (NSCharacterSet *)lowercaseLetterCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"lowercaseCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"lowercaseCharSet" number: 6];
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}
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+ (NSCharacterSet *)nonBaseCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"nonbaseCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"nonbaseCharSet" number: 7];
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}
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+ (NSCharacterSet *)uppercaseLetterCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"uppercaseCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"uppercaseCharSet" number: 8];
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}
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+ (NSCharacterSet *)whitespaceAndNewlineCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"whitespaceandnlCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"whitespaceandnlCharSet" number: 9];
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}
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+ (NSCharacterSet *)whitespaceCharacterSet
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{
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NSData *data = [self _bitmapForSet:@"whitespaceCharSet"];
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return [self characterSetWithBitmapRepresentation:data];
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return [self _bitmapForSet:@"whitespaceCharSet" number: 10];
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}
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// Creating custom character sets
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+ (NSCharacterSet *)characterSetWithBitmapRepresentation:(NSData *)data
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