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Convert cmdedit into more generic line input facility

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(make history and completion optional at runtime).
Use it for fdisk, as an example.
Some unrelated fixes in fdisk are also here.
This commit is contained in:
Denis Vlasenko
2007-01-22 07:21:38 +00:00
parent 00cdbd8fc2
commit 8e1c71529c
10 changed files with 459 additions and 438 deletions
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36
include/libbb.h
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@ -583,6 +583,42 @@ extern unsigned long long bb_makedev(unsigned int major, unsigned int minor);
#endif
#if ENABLE_FEATURE_COMMAND_EDITING
/* It's NOT just ENABLEd or disabled. It's a number: */
#ifdef CONFIG_FEATURE_COMMAND_HISTORY
#define MAX_HISTORY (CONFIG_FEATURE_COMMAND_HISTORY + 0)
#else
#define MAX_HISTORY 0
#endif
struct line_input_t {
int flags;
const char *path_lookup;
#if MAX_HISTORY
int cnt_history;
int cur_history;
USE_FEATURE_COMMAND_SAVEHISTORY(const char *hist_file;)
char *history[MAX_HISTORY + 1];
#endif
};
enum {
DO_HISTORY = 1 * (MAX_HISTORY > 0),
SAVE_HISTORY = 2 * (MAX_HISTORY > 0) * ENABLE_FEATURE_COMMAND_SAVEHISTORY,
TAB_COMPLETION = 4 * ENABLE_FEATURE_COMMAND_TAB_COMPLETION,
USERNAME_COMPLETION = 8 * ENABLE_FEATURE_COMMAND_USERNAME_COMPLETION,
VI_MODE = 0x10 * ENABLE_FEATURE_COMMAND_EDITING_VI,
WITH_PATH_LOOKUP = 0x20,
FOR_SHELL = DO_HISTORY | SAVE_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION,
};
typedef struct line_input_t line_input_t;
line_input_t *new_line_input_t(int flags);
int read_line_input(const char* prompt, char* command, int maxsize, line_input_t *state);
#else
int read_line_input(const char* prompt, char* command, int maxsize);
#define read_line_input(prompt, command, maxsize, state) \
read_line_input(prompt, command, maxsize)
#endif
#ifndef COMM_LEN
#ifdef TASK_COMM_LEN
enum { COMM_LEN = TASK_COMM_LEN };