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+2011-10-06 Kaz Kylheku <kaz@kylheku.com>
+
+ * lib.c (funcall3, curry_123_2): New functions.
+ (do_curry_123_2): New static function.
+
+ * lib.h (funcall3, curry_123_2): Declared.
+
+ * match.c (subst_vars): Bugfix: throw error on unbound variable instead
+ of ignoring the situation. This bug caused unbound variables in
+ quasiliterals to be silently ignored.
+ (eval_form): Function changed to three argument form, so that
+ it takes a line number for reporting errors. Restructured to catch
+ the new unbound variable exception from subst_vars, and re-throw
+ it with a line number. Also, throws exception now instead of returning
+ nil if itself it detets an unbound variable. Uses of eval_form
+ no longer have to test the return value for nil, but just assume
+ it worked.
+ (match_lines): Currying calls to eval form updated to use
+ curry_123_2. Test of eval return value eliminated. In function
+ calls, eval isn't used for reducing symbol arguments to values,
+ because it now throws in the unbound case, and it's not worth
+ setting up a catch for this. Instead, assoc is used directly.
+
2011-10-05 Kaz Kylheku <kaz@kylheku.com>
* match.c (match_files): In function calls, the deletion of