Commit [743ae9] legacy-trunk  Maximize  Restore  History

- Included detailed documentation in _sre.c explaining how, when, and why

to use LASTMARK_SAVE()/LASTMARK_RESTORE(), based on the discussion
in patch #712900.

- Cleaned up LASTMARK_SAVE()/LASTMARK_RESTORE() usage, based on the
established rules.

- Moved the upper part of the just commited patch (relative to bug #725106)
to outside the for() loop of BRANCH OP. There's no need to mark_save()
in every loop iteration.

Gustavo Niemeyer Gustavo Niemeyer 2003-04-27

changed Modules/_sre.c
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