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/*
* gwaverepl - read-evaluate-print loop connected to running gwave process.
* by Steve Tell
* November 6 10, 2000
*
* 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.GPL. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <glib.h>
#include "xgexec.h"
Display *display;
char *dispName;
Window w;
extern char *split_at(char **to_split, int i);
int
init_display()
{
if (!(dispName = getenv("DISPLAY")))
return 0;
if (!(display = XOpenDisplay(dispName)))
return 0;
return 1;
}
void die(char *str)
{
fputs(str,stderr);
exit(1);
}
main(int argc, char **argv)
{
extern char *optarg;
extern int optind;
int ch, fd;
char *msg;
char rbuf[32768];
int port;
int len;
char *result, *out, *err;
int splitpoint;
char *expr;
int done = 0;
char *gather = g_new(char, 1);
if (argc != 1)
die("Usage: gwaverepl\n");
if (!init_display())
die("Could not connect to gwave server. Check your DISPLAY environment variable.\n");
w=xgexec_init(display);
if (w==None)
die("Unable to establish gwave-exec connection.\n");
#ifdef HAVE_READLINE
init_readline();
#endif
while (!done) {
if ((splitpoint = check_balance(gather))) {
char *result, *error, *output;
expr = split_at(&gather,splitpoint);
result = xgexec_exec_full(display, w, expr, &output, &error);
fputs (output, stdout);
if (strlen(error)!=0) {
fputs(error, stderr);
} else {
fputs(result, stdout);
}
putchar('\n');
if (result) { g_free(result); result = NULL; }
if (output) { g_free(output); output = NULL; }
if (error) { g_free(error); error = NULL; }
free(expr);
expr = NULL;
} else {
done = !appending_fgets(&gather);
}
}
XCloseDisplay (display);
exit(0);
}
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