1999-07-04 Gary Houston <ghouston@easynet.co.uk>

1999-07-04  Gary Houston  <ghouston@easynet.co.uk>
	* strports.c (scm_strprint_obj): bug fix: get pt from the port,
	not from the parameter obj.  (Thanks to Eric Moore.)
	* ports.h: SCM_CRDY, SCM_CUC, SCM_CRDYP, SCM_SETRDY, SCM_CUNGET,
	SCM_CGETUN, SCM_CLRDY, SCM_TRY_CLRDY, SCM_N_READY_CHARS: deleted.
	* strings.c (scm_make_string): throw error if 2nd arg isn't
	a char.
	* unif.c (scm_uniform_array_read_x): fix reading from a port.
	allow non-fports.
	(scm_uniform_array_write): likewise.
1999-06-29  Gary Houston  <ghouston@easynet.co.uk>
	* ports.c (scm_drain_input): rewritten.
	* fports.c (local_fclose): check putback_buf.
	(local_read_flush): likewise.
	* ports.c (scm_remove_from_port_table): maybe free putback_buf.
	* ports.h (scm_port): replace cbuf/cbufend/cp with putback_buf/
	putback_buf_size.
	(SCM_INITIAL_PUTBACK_BUF_SIZE): renamed from SCM_INITIAL_CBUF_SIZE.
	* ports.c (scm_grow_port_cbuf): deleted.
	(scm_add_to_port_table): initialise putback_buf to 0.  remove cbuf
	stuff.
	(scm_char_ready_p): check putback_buf
	(scm_fill_buffer): likewise.
	(scm_ungetc): rewritten.
1999-06-27  Gary Houston  <ghouston@easynet.co.uk>
	* fports.c (local_fclose): account for push-back buffer.
	* ports.c (scm_char_ready_p): check the push-back buffer in
	a new way.
	* ioext.c (scm_do_read_line): remove the extra code to handle
	the push-back buffer.
	* ports.c (scm_getc): don't use SCM_CRDYP etc.
	* ioext.c (scm_do_read_line): call scm_fill_buffer.
	* ports.c (scm_ungetc): don't call SCM_CUNGET.  reset the
	read buffer pointers.
	scm_fill_buffer: new procedure.
	(scm_getc): call scm_fill_buffer.
	* ports.h (struct scm_port): saved_read_buf, saved_read_pos,
	saved_read_end: new fields.
1999-07-04  Gary Houston  <ghouston@easynet.co.uk>
	* configure.in: don't check for ways to violate stdio abstraction.