Rewindable parser #17
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This commit adds the ability to restart parsing only a few tokens before any document change. This should greatly improve performance, especially when editing the middle or end of large files.
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Additionally, use a dedicated token to avoid retokenization of program IDs
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…c_format` These changes remove pointless uses of `Cobol_config.source_format` in the pre-processor.
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lefessan
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bclement-ocp
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ddeclerck
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These changes add the ability to restart parsing only a few tokens before any document change. This should greatly improve performance, especially when editing the middle or end of large files.
Changes also include some refactoring of the parser and pre-processor, with a unification of their interface (notably, with options always passed using a single record).
Some tests of the rewinding feature come as well, along with fixes for some bugs they helped discover ;-).