diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/lineedit.c | 84 |
1 files changed, 47 insertions, 37 deletions
diff --git a/libbb/lineedit.c b/libbb/lineedit.c index 591bb6d..45448df 100644 --- a/libbb/lineedit.c +++ b/libbb/lineedit.c @@ -133,9 +133,6 @@ struct lineedit_statics { 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; @@ -172,7 +169,6 @@ extern struct lineedit_statics *const lineedit_ptr_to_statics; #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 ) @@ -185,7 +181,6 @@ extern struct lineedit_statics *const lineedit_ptr_to_statics; (*(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) @@ -1532,7 +1527,6 @@ static void remember_in_history(char *str) # 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 */ @@ -1768,17 +1762,16 @@ static void parse_and_put_prompt(const char *prmt_ptr) 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) { @@ -1787,7 +1780,7 @@ static void parse_and_put_prompt(const char *prmt_ptr) pbuf = cbuf; c = *prmt_ptr++; if (c == '\\') { - const char *cp = prmt_ptr; + const char *cp; int l; /* * Supported via bb_process_escape_sequence: @@ -1799,35 +1792,38 @@ static void parse_and_put_prompt(const char *prmt_ptr) * \nnn char with octal code nnn * Supported: * \$ if the effective UID is 0, a #, otherwise a $ - * \! history number of this command - * (buggy?) * \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) - * \W basename of the current working directory, with $HOME abbreviated with a tilde * \d date in "Weekday Month Date" format (e.g., "Tue May 26") * \D{format} * format is passed to strftime(3). * An empty format results in a locale-specific time representation. * The braces are required. - * \T current time in 12-hour HH:MM:SS format - * \@ current time in 12-hour am/pm format - * \A current time in 24-hour HH:MM format * Mishandled by bb_process_escape_sequence: - * \t current time in 24-hour HH:MM:SS format * \v version of bash (e.g., 2.00) */ - c = bb_process_escape_sequence(&prmt_ptr); + cp = prmt_ptr; + c = *cp; + if (c != 't') /* don't treat \t as tab */ + c = bb_process_escape_sequence(&prmt_ptr); if (prmt_ptr == cp) { if (*cp == '\0') break; @@ -1848,29 +1844,41 @@ static void parse_and_put_prompt(const char *prmt_ptr) case '$': 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); + pbuf = (char*)cp + 1; break; +# endif // bb_process_escape_sequence does this now: // case 'e': case 'E': /* \e \E = \033 */ // c = '\033'; @@ -1912,8 +1920,10 @@ static void parse_and_put_prompt(const char *prmt_ptr) 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(); } |