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@c -*- mode: Noweb; noweb-doc-mode: texinfo-mode; noweb-code-mode: c-mode -*-
@node File g_basic.c,,,Top
@chapter File @file{g_basic.c}
@section File header
<<g_basic.c : *>>=
<<g_basic.c : copyright and license>>
/* DO NOT read or edit this file ! Use ../noweb/g_basic.nw instead */
<<g_basic.c : include directives>>
<<g_basic.c : load()>>
<<g_basic.c : load_error_handler()>>
<<g_basic.c : g_read_file()>>
@
<<g_basic.c : copyright and license>>=
/* gEDA - GPL Electronic Design Automation
* libgeda - gEDA's library
* Copyright (C) 1998-2000 Ales V. Hvezda
*
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
*/
@
<<g_basic.c : include directives>>=
#include <config.h>
#include <stdio.h>
#include <sys/stat.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_ASSERT_H
#include <assert.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <gtk/gtk.h>
#include <libguile.h>
#include "defines.h"
#include "struct.h"
#include "globals.h"
#include "o_types.h"
#include "../include/prototype.h"
#ifdef HAVE_LIBDMALLOC
#include <dmalloc.h>
#endif
@
@section Function @code{load()}
@defun load data
@end defun
<<g_basic.c : load()>>=
/* The following code was contributed by thi (with formating changes
* by Ales) Thanks! */
/* Later updated by spe */
/* This `load()' is modeled after libguile/load.c, load().
* Additionally, the most recent form read is saved in case something
* goes wrong. */
static SCM most_recently_read_form = SCM_BOOL_F;
static SCM
load (void *data)
{
SCM load_port = (SCM)data;
SCM form;
int eof_found = 0;
while (!eof_found) {
form = scm_read(load_port);
if (SCM_EOF_OBJECT_P(form)) {
eof_found = 1;
} else {
most_recently_read_form = form;
#ifdef HAVE_SCM_EVAL_X_MODULE
scm_eval_x (form, scm_current_module() );
#else
scm_eval_x (form);
#endif
}
}
most_recently_read_form = SCM_BOOL_F;
return SCM_BOOL_T;
}
@ %def most_recently_read_form load
@section Function @code{load_error_handler()}
@defun load_error_handler data tag throw_args
@end defun
<<g_basic.c : load_error_handler()>>=
static SCM
load_error_handler(void *data, SCM tag, SCM throw_args)
{
SCM cur_out = scm_current_output_port ();
SCM load_port = (SCM)data;
SCM filename = scm_port_filename(load_port);
/*
* If misc-error the column and line pointers points
* to end of file. Not necessary to confuse user.
*/
if (!scm_eq_p (tag, scm_str2symbol ("misc-error"))) {
scm_display(scm_makfrom0str("Error : "), cur_out);
scm_display(tag, cur_out);
scm_display(scm_makfrom0str(" [C:"), cur_out);
scm_display(scm_port_column(load_port), cur_out );
scm_display(scm_makfrom0str(" L:"), cur_out);
scm_display(scm_port_line(load_port), cur_out );
scm_display(scm_makfrom0str("]"), cur_out);
} else {
scm_display(scm_makfrom0str("Probably parenthesis mismatch"),
cur_out);
}
scm_display(scm_makfrom0str(" in "), cur_out);
scm_display(filename, cur_out);
scm_newline(cur_out);
if (most_recently_read_form != SCM_BOOL_F) {
scm_display(scm_makfrom0str ("Most recently read form: "),
cur_out);
scm_display(most_recently_read_form, cur_out);
scm_newline(cur_out);
}
return SCM_BOOL_F;
}
@ %def load_error_handler
@section Function @code{g_read_file()}
@defun g_read_file filename
@end defun
<<g_basic.c : g_read_file()>>=
int
g_read_file(const gchar *filename)
{
SCM port;
SCM eval_result = SCM_BOOL_F;
if (filename == NULL) {
return(-1);
}
if (access(filename, R_OK) != 0) {
s_log_message("Could not find [%s] for interpretion\n",
filename);
return(-1);
}
port = scm_open_file(scm_makfrom0str(filename), scm_makfrom0str("r"));
eval_result = scm_internal_catch (SCM_BOOL_T,
(scm_t_catch_body)load,
(void*)port,
(scm_t_catch_handler)load_error_handler,
(void*)port);
scm_close_port(port);
return (eval_result == SCM_BOOL_T);
}
@ %def g_read_file
|
