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/* 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 General Public License as published by
* the Free Software Foundation; either version 2, 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of SCM.
*
* The exception is that, if you link the SCM library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the SCM library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name SCM. If you copy
* code from other Free Software Foundation releases into a copy of
* SCM, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for SCM, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*/
/* "readline.c" Scheme interface to readline library
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);
if (scm_ldprog(s_Iedline))
wta(*loc_errobj, "couldn't init", s_Iedline);
}
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