CHAR_T *command_ps;
const char *cmdedit_prompt;
-#if ENABLE_FEATURE_EDITING_FANCY_PROMPT
- int num_ok_lines; /* = 1; */
-#endif
#if ENABLE_USERNAME_OR_HOMEDIR
char *user_buf;
#define command_len (S.command_len )
#define command_ps (S.command_ps )
#define cmdedit_prompt (S.cmdedit_prompt )
-#define num_ok_lines (S.num_ok_lines )
#define user_buf (S.user_buf )
#define home_pwd_buf (S.home_pwd_buf )
#define matches (S.matches )
(*(struct lineedit_statics**)&lineedit_ptr_to_statics) = xzalloc(sizeof(S)); \
barrier(); \
cmdedit_termw = 80; \
- IF_FEATURE_EDITING_FANCY_PROMPT(num_ok_lines = 1;) \
IF_USERNAME_OR_HOMEDIR(home_pwd_buf = (char*)null_str;) \
+ IF_FEATURE_EDITING_VI(delptr = delbuf;) \
} while (0)
static void deinit_S(void)
#if MAX_HISTORY > 0
-unsigned size_from_HISTFILESIZE(const char *hp)
+unsigned FAST_FUNC size_from_HISTFILESIZE(const char *hp)
{
int size = MAX_HISTORY;
if (hp) {
return 0;
}
+/* Lists command history. Used by shell 'history' builtins */
+void FAST_FUNC show_history(const line_input_t *st)
+{
+ int i;
+
+ if (!st)
+ return;
+ for (i = 0; i < st->cnt_history; i++)
+ printf("%4d %s\n", i, st->history[i]);
+}
+
# if ENABLE_FEATURE_EDITING_SAVEHISTORY
/* We try to ensure that concurrent additions to the history
* do not overwrite each other.
# if ENABLE_FEATURE_EDITING_SAVEHISTORY && !ENABLE_FEATURE_EDITING_SAVE_ON_EXIT
save_history(str);
# endif
- IF_FEATURE_EDITING_FANCY_PROMPT(num_ok_lines++;)
}
#else /* MAX_HISTORY == 0 */
size_t cur_prmt_len = 0;
char flg_not_length = '[';
char *prmt_mem_ptr = xzalloc(1);
- char *cwd_buf = xrealloc_getcwd_or_warn(NULL);
+# if ENABLE_USERNAME_OR_HOMEDIR
+ char *cwd_buf = NULL;
+# endif
+ char timebuf[sizeof("HH:MM:SS")];
char cbuf[2];
char c;
char *pbuf;
cmdedit_prmt_len = 0;
- if (!cwd_buf) {
- cwd_buf = (char *)bb_msg_unknown;
- }
-
cbuf[1] = '\0'; /* never changes */
while (*prmt_ptr) {
pbuf = cbuf;
c = *prmt_ptr++;
if (c == '\\') {
- const char *cp = prmt_ptr;
+ const char *cp;
int l;
-
- c = bb_process_escape_sequence(&prmt_ptr);
+/*
+ * Supported via bb_process_escape_sequence:
+ * \a ASCII bell character (07)
+ * \e ASCII escape character (033)
+ * \n newline
+ * \r carriage return
+ * \\ backslash
+ * \nnn char with octal code nnn
+ * Supported:
+ * \$ if the effective UID is 0, a #, otherwise a $
+ * \w current working directory, with $HOME abbreviated with a tilde
+ * Note: we do not support $PROMPT_DIRTRIM=n feature
+ * \W basename of the current working directory, with $HOME abbreviated with a tilde
+ * \h hostname up to the first '.'
+ * \H hostname
+ * \u username
+ * \[ begin a sequence of non-printing characters
+ * \] end a sequence of non-printing characters
+ * \T current time in 12-hour HH:MM:SS format
+ * \@ current time in 12-hour am/pm format
+ * \A current time in 24-hour HH:MM format
+ * \t current time in 24-hour HH:MM:SS format
+ * (all of the above work as \A)
+ * Not supported:
+ * \! history number of this command
+ * \# command number of this command
+ * \j number of jobs currently managed by the shell
+ * \l basename of the shell's terminal device name
+ * \s name of the shell, the basename of $0 (the portion following the final slash)
+ * \V release of bash, version + patch level (e.g., 2.00.0)
+ * \d date in "Weekday Month Date" format (e.g., "Tue May 26")
+ * \D{format}
+ * format is passed to strftime(3).
+ * An empty format results in a locale-specific time representation.
+ * The braces are required.
+ * Mishandled by bb_process_escape_sequence:
+ * \v version of bash (e.g., 2.00)
+ */
+ cp = prmt_ptr;
+ c = *cp;
+ if (c != 't') /* don't treat \t as tab */
+ c = bb_process_escape_sequence(&prmt_ptr);
if (prmt_ptr == cp) {
if (*cp == '\0')
break;
pbuf = user_buf ? user_buf : (char*)"";
break;
# endif
+ case 'H':
case 'h':
pbuf = free_me = safe_gethostname();
- *strchrnul(pbuf, '.') = '\0';
+ if (c == 'h')
+ strchrnul(pbuf, '.')[0] = '\0';
break;
case '$':
c = (geteuid() == 0 ? '#' : '$');
break;
+ case 'T': /* 12-hour HH:MM:SS format */
+ case '@': /* 12-hour am/pm format */
+ case 'A': /* 24-hour HH:MM format */
+ case 't': /* 24-hour HH:MM:SS format */
+ /* We show all of them as 24-hour HH:MM */
+ strftime_HHMMSS(timebuf, sizeof(timebuf), NULL)[-3] = '\0';
+ pbuf = timebuf;
+ break;
# if ENABLE_USERNAME_OR_HOMEDIR
- case 'w':
- /* /home/user[/something] -> ~[/something] */
- pbuf = cwd_buf;
- l = strlen(home_pwd_buf);
- if (l != 0
- && strncmp(home_pwd_buf, cwd_buf, l) == 0
- && (cwd_buf[l]=='/' || cwd_buf[l]=='\0')
- && strlen(cwd_buf + l) < PATH_MAX
- ) {
- pbuf = free_me = xasprintf("~%s", cwd_buf + l);
+ case 'w': /* current dir */
+ case 'W': /* basename of cur dir */
+ if (!cwd_buf) {
+ cwd_buf = xrealloc_getcwd_or_warn(NULL);
+ if (!cwd_buf)
+ cwd_buf = (char *)bb_msg_unknown;
+ else {
+ /* /home/user[/something] -> ~[/something] */
+ l = strlen(home_pwd_buf);
+ if (l != 0
+ && strncmp(home_pwd_buf, cwd_buf, l) == 0
+ && (cwd_buf[l] == '/' || cwd_buf[l] == '\0')
+ ) {
+ cwd_buf[0] = '~';
+ overlapping_strcpy(cwd_buf + 1, cwd_buf + l);
+ }
+ }
}
- break;
-# endif
- case 'W':
pbuf = cwd_buf;
+ if (c == 'w')
+ break;
cp = strrchr(pbuf, '/');
- if (cp != NULL && cp != pbuf)
- pbuf += (cp-pbuf) + 1;
- break;
- case '!':
- pbuf = free_me = xasprintf("%d", num_ok_lines);
- break;
- case 'e': case 'E': /* \e \E = \033 */
- c = '\033';
+ if (cp)
+ pbuf = (char*)cp + 1;
break;
+# endif
+// bb_process_escape_sequence does this now:
+// case 'e': case 'E': /* \e \E = \033 */
+// c = '\033';
+// break;
case 'x': case 'X': {
char buf2[4];
for (l = 0; l < 3;) {
free(free_me);
} /* while */
+# if ENABLE_USERNAME_OR_HOMEDIR
if (cwd_buf != (char *)bb_msg_unknown)
free(cwd_buf);
+# endif
cmdedit_prompt = prmt_mem_ptr;
put_prompt();
}
/* Delete word forward */
int nc, sc = cursor;
ctrl_right();
- nc = cursor;
- input_backward(cursor - sc);
- while (--nc >= cursor)
+ nc = cursor - sc;
+ input_backward(nc);
+ while (--nc >= 0)
input_delete(1);
break;
}
free(command_ps);
#endif
- if (command_len > 0)
+ if (command_len > 0) {
remember_in_history(command);
+ }
if (break_out > 0) {
command[command_len++] = '\n';
{
fputs(prompt, stdout);
fflush_all();
- fgets(command, maxsize, stdin);
+ if (!fgets(command, maxsize, stdin))
+ return -1;
return strlen(command);
}
projects / oweals / busybox.git / blobdiff