diff options
| -rw-r--r-- | scripts/defconfig | 1 | ||||
| -rw-r--r-- | shell/Config.in | 8 | ||||
| -rw-r--r-- | shell/cmdedit.c | 91 |
3 files changed, 38 insertions, 62 deletions
diff --git a/scripts/defconfig b/scripts/defconfig index fc43deb..503f12a 100644 --- a/scripts/defconfig +++ b/scripts/defconfig @@ -632,6 +632,7 @@ CONFIG_FEATURE_SH_IS_NONE=y # CONFIG_FEATURE_SH_EXTRA_QUIET is not set # CONFIG_FEATURE_SH_STANDALONE_SHELL is not set # CONFIG_FEATURE_COMMAND_EDITING is not set +# CONFIG_FEATURE_EDITING_FANCY_KEYS is not set # CONFIG_FEATURE_COMMAND_EDITING_VI is not set CONFIG_FEATURE_COMMAND_HISTORY= # CONFIG_FEATURE_COMMAND_SAVEHISTORY is not set diff --git a/shell/Config.in b/shell/Config.in index 9ac2331..15c52be 100644 --- a/shell/Config.in +++ b/shell/Config.in @@ -247,6 +247,14 @@ config FEATURE_COMMAND_EDITING help Enable command editing in shell. +config FEATURE_EDITING_FANCY_KEYS + bool "Additional editing keys" + default n + depends on FEATURE_COMMAND_EDITING + help + Enable additonal editing keys (Ctrl-E, Ctrl-U etc). + Arrow keys, Home/End/Delete and Ctrl-W work even without this option. + config FEATURE_COMMAND_EDITING_VI bool "vi-style line editing commands" default n diff --git a/shell/cmdedit.c b/shell/cmdedit.c index 39cab19..a1432af 100644 --- a/shell/cmdedit.c +++ b/shell/cmdedit.c @@ -24,55 +24,10 @@ Small bugs (simple effect): - not true viewing if terminal size (x*y symbols) less - size (prompt + editor`s line + 2 symbols) + size (prompt + editor's line + 2 symbols) - not true viewing if length prompt less terminal width */ -/* -CONFIG_FEATURE_COMMAND_EDITING=y -# CONFIG_FEATURE_COMMAND_EDITING_VI is not set -CONFIG_FEATURE_COMMAND_HISTORY=15 -# CONFIG_FEATURE_COMMAND_SAVEHISTORY is not set -# CONFIG_FEATURE_COMMAND_TAB_COMPLETION is not set -# CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION is not set -# CONFIG_FEATURE_SH_FANCY_PROMPT is not set -Sizes with the above: -# size cmdedit.o - text data bss dec hex filename - 2374 4 228 2606 a2e cmdedit.o -# nm --size-sort cmdedit.o -00000004 b cmdedit_prmt_len -00000004 b cmdedit_prompt -00000004 d cmdedit_termw -00000004 b cmdedit_x -00000004 b cmdedit_y -00000004 b command_ps -00000004 b cur_history -00000004 b cursor -00000004 b handlers_sets -00000004 b len -00000004 b n_history -00000004 b previous_SIGWINCH_handler -00000009 t beep -00000017 t goto_new_line -0000001a t input_end -0000001b t input_backspace -0000001e t input_forward -00000027 t get_next_history -00000036 t put_prompt -00000039 t redraw -0000003c b initial_settings -0000003c b new_settings -00000040 b history -00000047 t input_delete -0000004d t get_previous_history -00000059 t cmdedit_reset_term -0000006c t cmdedit_set_out_char -00000087 t input_backward -000000a1 t win_changed -0000053c T cmdedit_read_input -*/ - #include <sys/ioctl.h> #include "busybox.h" #include "cmdedit.h" @@ -969,7 +924,7 @@ void load_history(const char *fromfile) cur_history = n_history = hi; } -void save_history (const char *tofile) +void save_history(const char *tofile) { FILE *fp = fopen(tofile, "w"); @@ -1381,6 +1336,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) goto_new_line(); break_out = 1; break; +#if ENABLE_FEATURE_EDITING_FANCY_KEYS case CTRL('A'): vi_case('0'|vbit:) /* Control-a -- Beginning of line */ @@ -1393,6 +1349,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) /* Control-b -- Move back one character */ input_backward(1); break; +#endif case CTRL('C'): vi_case(CTRL('C')|vbit:) /* Control-c -- stop gathering input */ @@ -1425,10 +1382,11 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) break_out = len = -1; break; #endif - } else { - input_delete(0); } + input_delete(0); break; + +#if ENABLE_FEATURE_EDITING_FANCY_KEYS case CTRL('E'): vi_case('$'|vbit:) /* Control-e -- End of line */ @@ -1440,16 +1398,21 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) /* Control-f -- Move forward one character */ input_forward(); break; +#endif + case '\b': case '\x7f': /* DEL */ /* Control-h and DEL */ input_backspace(); break; + case '\t': #if ENABLE_FEATURE_COMMAND_TAB_COMPLETION input_tab(&lastWasTab); #endif break; + +#if ENABLE_FEATURE_EDITING_FANCY_KEYS case CTRL('K'): /* Control-k -- clear to end of line */ command[cursor] = 0; @@ -1462,6 +1425,8 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) printf("\033[H"); redraw(0, len - cursor); break; +#endif + #if MAX_HISTORY > 0 case CTRL('N'): vi_case(CTRL('N')|vbit:) @@ -1482,6 +1447,8 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) } break; #endif + +#if ENABLE_FEATURE_EDITING_FANCY_KEYS case CTRL('U'): vi_case(CTRL('U')|vbit:) /* Control-U -- Clear line before cursor */ @@ -1490,14 +1457,16 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) redraw(cmdedit_y, len -= cursor); } break; +#endif case CTRL('W'): vi_case(CTRL('W')|vbit:) /* Control-W -- Remove the last word */ while (cursor > 0 && isspace(command[cursor-1])) input_backspace(); - while (cursor > 0 &&!isspace(command[cursor-1])) + while (cursor > 0 && !isspace(command[cursor-1])) input_backspace(); break; + #if ENABLE_FEATURE_COMMAND_EDITING_VI case 'i'|vbit: vi_cmdmode = 0; @@ -1655,6 +1624,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) if (dummy != '~') c = '\0'; } + switch (c) { #if ENABLE_FEATURE_COMMAND_TAB_COMPLETION case '\t': /* Alt-Tab */ @@ -1705,7 +1675,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) input_end(); break; default: - c = 0; + c = '\0'; beep(); } break; @@ -1722,36 +1692,33 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) } } else #endif - { + #if ENABLE_FEATURE_COMMAND_EDITING_VI - if (vi_cmdmode) /* don't self-insert */ - break; + if (vi_cmdmode) /* Don't self-insert */ + break; #endif - if (!Isprint(c)) /* Skip non-printable characters */ - break; - } + if (!Isprint(c)) /* Skip non-printable characters */ + break; if (len >= (BUFSIZ - 2)) /* Need to leave space for enter */ break; len++; - if (cursor == (len - 1)) { /* Append if at the end of the line */ - *(command + cursor) = c; - *(command + cursor + 1) = 0; + command[cursor] = c; + command[cursor+1] = '\0'; cmdedit_set_out_char(' '); } else { /* Insert otherwise */ int sc = cursor; memmove(command + sc + 1, command + sc, len - sc); - *(command + sc) = c; + command[sc] = c; sc++; /* rewrite from cursor */ input_end(); /* to prev x pos + 1 */ input_backward(cursor - sc); } - break; } if (break_out) /* Enter is the command terminator, no more input. */ |