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Diffstat (limited to 'edline.c')
-rw-r--r-- | edline.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/edline.c b/edline.c new file mode 100644 index 0000000..ab15578 --- /dev/null +++ b/edline.c @@ -0,0 +1,94 @@ +/* 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, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * As a special exception, the Free Software Foundation gives permission + * for additional uses of the text contained in its release of GUILE. + * + * The exception is that, if you link the GUILE 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 GUILE 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 GUILE. If you copy + * code from other Free Software Foundation releases into a copy of + * GUILE, 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 GUILE, 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; + ASSERT(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,(sizet)strlen(s),tc7_string); + ALLOW_INTS; + return res; +} +static char s_add_history[] = "add-history"; +SCM ladd_history(line) + SCM line; +{ + ASSERT(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); +} |