int main(int argc, char *argv[])
{
char *line; /* A line of input */
GetLine *gl; /* The line editor */
int major,minor,micro; /* The version number of the library */
/*
* Create the line editor, specifying a max line length of 500 bytes,
* and 10000 bytes to allocate to storage of historical input lines.
*/
gl = new_GetLine(500, 5000);
if(!gl)
return 1;
/*
* If the user has the LC_CTYPE or LC_ALL environment variables set,
* enable display of characters corresponding to the specified locale.
*/
(void) setlocale(LC_CTYPE, "");
/*
* Lookup and display the version number of the library.
*/
libtecla_version(&major, &minor, µ);
printf("Welcome to the demo program of libtecla version %d.%d.%d\n",
major, minor, micro);
/*
* Load history.
*/
(void) gl_load_history(gl, "~/.demo_history", "#");
/*
* Read lines of input from the user and print them to stdout.
*/
do {
/*
* Get a new line from the user.
*/
line = gl_get_line(gl, "$ ", NULL, 0);
if(!line)
break;
/*
* Display what was entered.
*/
if(printf("You entered: %s", line) < 0 || fflush(stdout))
break;
/*
* If the user types "exit", quit the program.
*/
if(strcmp(line, "exit\n")==0)
break;
else if(strcmp(line, "history\n")==0)
gl_show_history(gl, stdout, "%N %T %H\n", 0, -1);
else if(strcmp(line, "size\n")==0) {
GlTerminalSize size = gl_terminal_size(gl, 80, 24);
printf("Terminal size = %d columns x %d lines.\n", size.ncolumn,
size.nline);
};
} while(1);
/*
* Save historical command lines.
*/
(void) gl_save_history(gl, "~/.demo_history", "#", -1);
/*
* Clean up.
*/
gl = del_GetLine(gl);
return 0;
}
/*.......................................................................
* This program demonstrates how to use gl_get_line() as a line editor to
* to enable users to enter input. It takes no arguments.
*/
int main(int argc, char *argv[])
{
char *line; /* A line of input */
GetLine *gl; /* The line editor */
int major,minor,micro; /* The version number of the library */
int retval;
/*
* Create the line editor, specifying a max line length of 500 bytes,
* and 10000 bytes to allocate to storage of historical input lines.
*/
gl = new_GetLine(500, 5000);
if(!gl)
return 1;
/* setup CLI tab line completion */
retval = gl_customize_completion(gl,
my_tab_context_string_array,
my_tab_callback);
if (retval != 0) {
printf("\nError: cannot set GL tab completion");
return 1;
}
/*
* If the user has the LC_CTYPE or LC_ALL environment variables set,
* enable display of characters corresponding to the specified locale.
*/
(void) setlocale(LC_CTYPE, "");
/*
* Lookup and display the version number of the library.
*/
libtecla_version(&major, &minor, µ);
printf("\n Welcome to the main demo program of libtecla version %d.%d.%d\n",
major, minor, micro);
/*
* Display an introductory banner.
*/
show_demo_introduction(gl);
/*
* Load history.
*/
#ifndef WITHOUT_FILE_SYSTEM
(void) gl_load_history(gl, "~/.demo_history", "#");
#endif
/*
* Read lines of input from the user and print them to stdout.
*/
do {
/*
* Get a new line from the user.
*/
line = gl_get_line(gl, "$ ", NULL, 0);
if(!line)
break;
/*
* Display what was entered.
*/
if(printf("You entered: %s", line) < 0 || fflush(stdout))
break;
/*
* If the user types "exit", quit the program.
*/
if(strcmp(line, "exit\n")==0)
break;
else if(strcmp(line, "history\n")==0)
gl_show_history(gl, stdout, "%N %T %H\n", 0, -1);
else if(strcmp(line, "size\n")==0) {
GlTerminalSize size = gl_terminal_size(gl, 80, 24);
printf("Terminal size = %d columns x %d lines.\n", size.ncolumn,
size.nline);
} else if(strcmp(line, "clear\n")==0) {
if(gl_erase_terminal(gl))
return 1;
};
} while(1);
/*
* Save historical command lines.
*/
#ifndef WITHOUT_FILE_SYSTEM
(void) gl_save_history(gl, "~/.demo_history", "#", -1);
#endif
/*
* Clean up.
*/
gl = del_GetLine(gl);
return 0;
}