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Scanner: Add option flag to expand variations#127
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mikeb26 wants to merge 3 commits intonotnil:masterfrom
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Scanner: Add option flag to expand variations#127mikeb26 wants to merge 3 commits intonotnil:masterfrom
mikeb26 wants to merge 3 commits intonotnil:masterfrom
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This commit is part of a series to add an optional ability to expand variations when utilizing Scanner to iterate over a .pgn file. This commit specifically introduces ScannerOpts to enable consumers of Scanner to specify different scanning behavior. The first intended use is ScannerOpts.ExpandVariations. Currently Scanner will strip out any variations that are present in a game defined within a .pgn file. This new option (non-default) when specified will instead allow Scanner consumers to specify that when iterating over a .pgn it should create a new instance of a chess game for every variation encountered. Additionally this commit refactors Scanner internals to deal with the fact that decoding a single game may return a plural number of Game instances rather than a singular. Code to actually actually make this plural will be in a followup commit. (cherry picked from commit 42e2e16)
This commit is part of a series to add an optional ability to expand variations when utilizing Scanner to iterate over a .pgn file. This commit specifically implements moveListSetWithComments() when expandVariations==true. Additionally it adds a unit test to verify Scanner behaves as expected when ExpandVariations==true. (cherry picked from commit 666f43f)
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This commit just adds a new pgn test case that ensures the combination of a PGN with a specified starting position and the ExpandVariations scanner option interoprate.
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Note this PR depends on prior PR: #125
This series of commits adds an optional ability to expand variations when utilizing Scanner to iterate over a .pgn file. This is done by introducing an optional ScannerOpts where consumers of Scanner can specify different scanning behavior, beginning with an ExpandVariations option. When ExpandVariations==true, rather than create a single Game instance when scanning over a single game in a .pgn file, Scanner will instead create 1 Game instance per variation.