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Mikael Djurfeldt 1999-08-24 02:14:57 +00:00
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1999-08-24 Mikael Djurfeldt <mdj@thalamus.nada.kth.se>
* print.h (SCM_PORT_WITH_PS_P, SCM_PORT_WITH_PS_PORT,
SCM_PORT_WITH_PS_PS): Represent ports with print states as a smob
instead of a pair of a port and a print state. We'll need to cons
once extra in scm_printer_apply but the type system will be
cleaner, it will mix better with GOOPS, and, it will be even more
transparent to the user.
* print.c (scm_get_print_state): New procedure: Given an output
port, return the print state associated to it in the current print
chain, if one exists;
(scm_port_with_print_state): New procedure: Associate a
print-state with a port.
(scm_valid_oport_value_p): Use SCM_PORT_WITH_PS_P;
(scm_printer_apply): Wrap port and pstate as a smob;
(print_state_printer): Removed.
* objects.c (scm_class_of): Treat scm_tc16_port_with_ps as ports.
* eval.c (scm_init_eval): Use scm_make_smob_type instead of
scm_newsmob.
* ports.c (scm_output_port_p): Bugfix: Coerce output port before
testing (otherwise the port-print-state trick won't be transparent
to the user; one example where this caused problems was in the
(ice-9 format) module).
1999-08-23 Mikael Djurfeldt <mdj@thalamus.nada.kth.se>
* eval.c (SCM_CEVAL): Let the SCM_IM_SLOT_SET_X form return