OORoleSet.h File Reference

import "OOCocoa.h"

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Classes
class	OORoleSet

Functions
NSDictionary *	OOParseRolesFromString (NSString *string)

Function Documentation

OOParseRolesFromString()

static NSDictionary * OOParseRolesFromString

(

NSString *

string

)

Definition at line 290 of file GetMetadataForFile.m.

{
    NSMutableDictionary     *result = nil;
    NSArray                 *tokens = nil;
    NSUInteger              i, count;
    NSString                *role = nil;
    float                   probability;
    NSScanner               *scanner = nil;
    
    // Split string at spaces, sanity checks, set-up.
    if (string == nil)  return nil;
    
    tokens = ScanTokensFromString(string);
    count = [tokens count];
    if (count == 0)  return nil;
    
    result = [NSMutableDictionary dictionaryWithCapacity:count];
    
    // Scan tokens, looking for probabilities.
    for (i = 0; i != count; ++i)
    {
        role = [tokens objectAtIndex:i];
        
        probability = 1.0f;
        if ([role rangeOfString:@"("].location != NSNotFound)
        {
            scanner = [[NSScanner alloc] initWithString:role];
            [scanner scanUpToString:@"(" intoString:&role];
            [scanner scanString:@"(" intoString:NULL];
            if (![scanner scanFloat:&probability])  probability = 1.0f;
            // Ignore rest of string
        }
        
        // shipKey roles start with [ so other roles can't
        if (0 <= probability && ![role hasPrefix:@"["])
        {
            [result setObject:[NSNumber numberWithFloat:probability] forKey:role];
        }
    }
    
    if ([result count] == 0)  result = nil;
    return result;
}

References count, nil, and ScanTokensFromString().

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