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/* "readline.c" Scheme interface to readline library
* Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
/* Author: Radey Shouman */
#include "scm.h"
char *readline P((const char *prompt));
void add_history P((char *p));
/* Reads on stdin/stdout only */
static char s_readline[] = "read-edited-line";
SCM lreadline(prompt)
SCM prompt;
{
SCM res;
char *s;
ASRTER(NIMP(prompt) && STRINGP(prompt), prompt, ARG1, s_readline);
s = readline(CHARS(prompt));
if (NULL == s) return EOF_VAL;
NEWCELL(res);
DEFER_INTS;
SETCHARS(res, s);
SETLENGTH(res, strlen(s), tc7_string);
ALLOW_INTS;
return res;
}
static char s_add_history[] = "add-history";
SCM ladd_history(line)
SCM line;
{
ASRTER(NIMP(line) && STRINGP(line), line, ARG1, s_add_history);
add_history(CHARS(line));
return UNSPECIFIED;
}
static char s_def_inport[] = "default-input-port";
SCM def_inport()
{
return def_inp;
}
static char s_def_outport[] = "default-output-port";
SCM def_outport()
{
return def_outp;
}
static char s_Iedline[] = "Iedline.scm";
void init_edline()
{
make_subr(s_def_inport, tc7_subr_0, def_inport);
make_subr(s_def_outport, tc7_subr_0, def_outport);
make_subr(s_readline, tc7_subr_1, lreadline);
make_subr(s_add_history, tc7_subr_1, ladd_history);
add_feature("edit-line");
if (scm_ldprog(s_Iedline))
wta(*loc_errobj, "couldn't init", s_Iedline);
}
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