stk/Src/console.c

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/*
*
* c o n s o l e . c -- Console management
*
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* Copyright <EFBFBD> 1998-1999 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
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*
*
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* Permission to use, copy, modify, distribute,and license this
* software and its documentation for any purpose is hereby granted,
* provided that existing copyright notices are retained in all
* copies and that this notice is included verbatim in any
* distributions. No written agreement, license, or royalty fee is
* required for any of the authorized uses.
* This software is provided ``AS IS'' without express or implied
* warranty.
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*
* Author: Erick Gallesio [eg@kaolin.unice.fr]
* Creation date: 4-Nov-1998 18:50
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* Last file update: 3-Sep-1999 20:19 (eg)
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*
*/
#include "stk.h"
#ifdef USE_TK
static PRIMITIVE fill_stdin(SCM str)
{
static SCM the_buffer = NULL;
ENTER_PRIMITIVE("%fill-stdin");
if (!STRINGP(str)) Serror("bad string", str);
if (!the_buffer) {
/* first call to fill_stdin. Protect the buffer against GC */
STk_gc_protect(&the_buffer);
}
the_buffer = str;
STk_fill_stdin_buffer(CHARS(str));
return UNDEFINED;
}
void STk_console_prompt(SCM env)
{
char *msg = "Incorrect \"console-display-prompt\" procedure";
char *expr = "(catch ((with-module Tk console-display-prompt)(current-module)))";
if (STk_internal_eval_string(expr, 0, env) == Truth) {
/* print on stderr AND the console because console is probably
* not reliable if we are here.
*/
fprintf(stderr, "**** FATAL ERROR: %s\nABANDON\n", msg);
panic(msg);
}
}
void STk_init_console(void)
{
char file[MAX_PATH_LENGTH+30];
char *name= "%make-standard-console";
SCM *tmp;
/* Load the console file */
sprintf(file, "%s/STk/console.stk", STk_library_path);
if (STk_load_file(file, FALSE, STk_selected_module) == Ntruth)
panic("Unable to load the console file \"%s\"", file);
/* Add the new (secret) primitive fill_stdin */
STk_add_new_primitive("%fill-stdin", tc_subr_1, fill_stdin);
/* Call the function %make-standard-console */
tmp = STk_varlookup(Intern(name), NIL, FALSE);
if (STk_procedurep(*tmp) == Ntruth)
panic("File \"%s\" does not define properly the function \"%s\"", file, name);
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Apply0(*tmp);
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}
#endif