boucher / tdparsekit

A non-deterministic recursive descent parser written in Objective-J (ported from Obj-C, created by Tod Ditchendorf)

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tdparsekit / TDAlternation.j
100644 24 lines (17 sloc) 0.425 kb
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@import "TDCollectionParser.j"
@import "TDAssembly.j"
 
@implementation TDAlternation : TDCollectionParser 
{
}
 
+ (id)alternation 
{
    return [[self alloc] init];
}
 
- (CPSet)allMatchesFor:(CPSet)inAssemblies 
{
    var outAssemblies = [CPSet set];
 
    for (var i=0, count=[subparsers count]; i<count; i++)
        [outAssemblies unionSet:[subparsers[i] matchAndAssemble:inAssemblies]];
 
    return outAssemblies;
}
 
@end