[plt-scheme] 203.10

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Thu Apr 24 22:37:03 EDT 2003

The exp-tagged code in CVS for MzScheme and MrEd is now version 203.10.

The changes are minor, those the first one may cause headaches:

 * Changed column counting (in syntax objects and error messages) to
   start from 0. This seems to be more standard than counting from 1.

   Lines and positions still start with 1 --- which, again, seems to be
   the most standard choice, though it seems odd to me that lines and
   positions are counted differently than columns.

 * Added `vector->immutable-vector'.

 * Added `immutable-box'.


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