From 8e1c71529c2bf38a04d4a117e625e59044a0785a Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Mon, 22 Jan 2007 07:21:38 +0000
Subject: Convert cmdedit into more generic line input facility (make history
and completion optional at runtime). Use it for fdisk, as an example. Some
unrelated fixes in fdisk are also here.
---
include/libbb.h | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
(limited to 'include')
diff --git a/include/libbb.h b/include/libbb.h
index 0b066d1bd..f990b0ebd 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -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 };
--
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