static void vis_args(Vis *vis, int argc, char *argv[]) {
char *cmd = NULL;
bool end_of_options = false;
for (int i = 1; i < argc; i++) {
if (argv[i][0] == '-' && !end_of_options) {
switch (argv[i][1]) {
case '-':
end_of_options = true;
break;
case 'v':
vis_die(vis, "vis %s\n", VERSION);
break;
case '\0':
break;
default:
vis_die(vis, "Unknown command option: %s\n", argv[i]);
break;
}
} else if (argv[i][0] == '+') {
cmd = argv[i] + (argv[i][1] == '/' || argv[i][1] == '?');
} else if (!vis_window_new(vis, argv[i])) {
vis_die(vis, "Can not load `%s': %s\n", argv[i], strerror(errno));
} else if (cmd) {
vis_prompt_cmd(vis, cmd);
cmd = NULL;
}
}
if (!vis->windows && vis->running) {
if (!strcmp(argv[argc-1], "-")) {
if (!vis_window_new(vis, NULL))
vis_die(vis, "Can not create empty buffer\n");
ssize_t len = 0;
char buf[PIPE_BUF];
File *file = vis->win->file;
Text *txt = file->text;
file->is_stdin = true;
while ((len = read(STDIN_FILENO, buf, sizeof buf)) > 0)
text_insert(txt, text_size(txt), buf, len);
if (len == -1)
vis_die(vis, "Can not read from stdin\n");
text_snapshot(txt);
int fd = open("/dev/tty", O_RDONLY);
if (fd == -1)
vis_die(vis, "Can not reopen stdin\n");
dup2(fd, STDIN_FILENO);
close(fd);
} else if (!vis_window_new(vis, NULL)) {
vis_die(vis, "Can not create empty buffer\n");
}
if (cmd)
vis_prompt_cmd(vis, cmd);
}
}
static const char *prompt_enter(Vis *vis, const char *keys, const Arg *arg) {
Win *prompt = vis->win;
View *view = prompt->view;
Text *txt = prompt->file->text;
Win *win = prompt->parent;
char *cmd = NULL;
Filerange range = view_selection_get(view);
if (!text_range_valid(&range))
range = text_object_line(txt, view_cursor_get(view));
if (text_range_valid(&range))
cmd = text_bytes_alloc0(txt, range.start, text_range_size(&range));
if (!win || !cmd) {
vis_info_show(vis, "Prompt window invalid\n");
prompt_restore(prompt);
prompt_hide(prompt);
free(cmd);
return keys;
}
size_t len = strlen(cmd);
if (len > 0 && cmd[len-1] == '\n')
cmd[len-1] = '\0';
bool lastline = (range.end == text_size(txt));
prompt_restore(prompt);
if (vis_prompt_cmd(vis, cmd)) {
prompt_hide(prompt);
if (!lastline) {
text_delete(txt, range.start, text_range_size(&range));
text_appendf(txt, "%s\n", cmd);
}
} else {
vis->win = prompt;
vis->mode = &vis_modes[VIS_MODE_INSERT];
}
free(cmd);
vis_draw(vis);
return keys;
}