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/*-----------------------------------------------------
* XXXXXX experience
* zzledt with readline
*-----------------------------------------------------*/
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/time.h>
#ifdef aix
#include <sys/select.h>
#endif
#include <readline/readline.h>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#ifdef WITH_TK
#include "../tclsci/TCL_Global.h"
#endif
#include "../graphics/Math.h"
extern char sci_input_char_buffer[];
extern int sci_input_char_buffer_count;
static int stop;
static char * full_line = NULL;
static int sci_readline(void);
static void process_line(char *line);
static char Sci_Prompt[10];
void C2F(zzledt)(char *buffer,int * buf_size, int * len_line,int * eof,
long int dummy1)
{
rl_callback_handler_install(Sci_Prompt, process_line);
stop = 1;
set_echo_mode(TRUE);
set_is_reading(TRUE);
sci_readline();
/* now full_line contains the line */
strcpy(buffer,full_line);
*len_line = strlen(full_line);
*eof = FALSE;
set_is_reading(FALSE);
if ( stop == 2 )
free(full_line);
}
static int sci_readline()
{
int i;
static int GtkXsocket,fd_in,fd_out,fd_err;
static int first = 0,max_plus1;
fd_set select_mask,write_mask;
static struct timeval select_timeout;
if ( first == 0)
{
first++;
GtkXsocket = ConnectionNumber(GDK_DISPLAY());
fd_in = fileno(stdin) ;
fd_out = fileno(stdout);
fd_err = fileno(stderr);
max_plus1 = Max(fd_in,GtkXsocket);
max_plus1 = Max(fd_out,max_plus1);
max_plus1 = Max(fd_err,max_plus1) + 1;
select_timeout.tv_sec = 50;
select_timeout.tv_usec = 0;
}
while (stop == 1) {
/* always flush writes before waiting */
gdk_flush();
fflush(stdout);
fflush(stderr);
/* Update the masks and, unless X events are already in the queue,
* wait for I/O to be possible.
*/
FD_ZERO(&select_mask);
FD_SET(fd_in , &select_mask);
FD_SET(GtkXsocket, &select_mask);
FD_ZERO(&write_mask);
/*
* XXXX : the two next FD_SET causes select not to wait
* and since they do not seam necessary they are commented out
*/
/* FD_SET(fd_out,&write_mask);
FD_SET(fd_err,&write_mask); */
while ( gtk_events_pending())
{
gtk_main_iteration();
}
/* maybe a new sentence to execute is already available */
if ( sci_input_char_buffer_count > 0)
{
full_line = sci_input_char_buffer;
sci_input_char_buffer_count = 0 ;
stop = 3;
return ;
}
/* select */
i = select(max_plus1, &select_mask,&write_mask, (fd_set *)NULL,
& select_timeout);
if (i < 0) {
if (errno != EINTR)
{
#ifdef DEBUG
fprintf(stderr,"error in select\n");
#endif
exit(0);
continue;
}
}
/* if there's something to output */
if ( FD_ISSET(fd_out,&write_mask)) {
fflush(stdout);
}
if ( FD_ISSET(fd_err,&write_mask)) {
fflush(stderr);
}
/* if there's something to read */
if ( FD_ISSET(fd_in,&select_mask )) {
rl_callback_read_char();
}
if ( FD_ISSET(GtkXsocket,&select_mask)) {
/* if there are X events in our queue, it
* counts as being readable
*/
while ( gtk_events_pending()) /* ||(select_mask & gtk_mask) */
{
gtk_main_iteration();
}
}
}
}
void process_line(char *line)
{
if ( line != NULL )
{
if (line[0] != '\0' ) add_history(line);
full_line = line ;
rl_callback_handler_install("", process_line);
stop = 2;
}
}
void C2F(setprlev)(pause)
int *pause;
{
if ( *pause == 0 )
sprintf(Sci_Prompt,"-->");
else if ( *pause > 0 )
sprintf(Sci_Prompt,"-%d->",*pause);
else
sprintf(Sci_Prompt,">>");
}
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