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authorDenys Vlasenko2009-05-17 16:44:54 +0200
committerDenys Vlasenko2009-05-17 16:44:54 +0200
commit020f40693a08b836abdea74f3823a0bce0378ec5 (patch)
tree4ae11c9b2156cccc1af8904c11c195b25b2886b0 /editors/vi.c
parent071ede1e5de784820f39c2546000c08d74b12f6d (diff)
downloadbusybox-020f40693a08b836abdea74f3823a0bce0378ec5.zip
busybox-020f40693a08b836abdea74f3823a0bce0378ec5.tar.gz
line editing: add an option to emit ESC [ 6 n and use results
This makes line editing able to recognize case when cursor was not at the beginning of the line. It may also be adapted later to find out display size (serial line users would love it). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'editors/vi.c')
-rw-r--r--editors/vi.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/editors/vi.c b/editors/vi.c
index ccc53fb..ee5b5d9 100644
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -151,7 +151,6 @@ struct globals {
char erase_char; // the users erase character
char last_input_char; // last char read from user
- smalluint chars_to_parse;
#if ENABLE_FEATURE_VI_DOT_CMD
smallint adding2q; // are we currently adding user input to q
int lmc_len; // length of last_modifying_cmd
@@ -235,7 +234,6 @@ struct globals {
#define last_forward_char (G.last_forward_char )
#define erase_char (G.erase_char )
#define last_input_char (G.last_input_char )
-#define chars_to_parse (G.chars_to_parse )
#if ENABLE_FEATURE_VI_READONLY
#define readonly_mode (G.readonly_mode )
#else
@@ -620,7 +618,7 @@ static void edit_file(char *fn)
// poll to see if there is input already waiting. if we are
// not able to display output fast enough to keep up, skip
// the display update until we catch up with input.
- if (!chars_to_parse && mysleep(0) == 0) {
+ if (!readbuffer[0] && mysleep(0) == 0) {
// no input pending - so update output
refresh(FALSE);
show_status_line();
@@ -2206,7 +2204,7 @@ static int readit(void) // read (maybe cursor) key from stdin
int c;
fflush(stdout);
- c = read_key(STDIN_FILENO, &chars_to_parse, readbuffer);
+ c = read_key(STDIN_FILENO, readbuffer);
if (c == -1) { // EOF/error
go_bottom_and_clear_to_eol();
cookmode(); // terminal to "cooked"
@@ -3851,10 +3849,11 @@ static void crash_dummy()
cmd1 = " \n\r\002\004\005\006\025\0310^$-+wWeEbBhjklHL";
// is there already a command running?
- if (chars_to_parse > 0)
+ if (readbuffer[0] > 0)
goto cd1;
cd0:
- startrbi = rbi = 0;
+ readbuffer[0] = 'X';
+ startrbi = rbi = 1;
sleeptime = 0; // how long to pause between commands
memset(readbuffer, '\0', sizeof(readbuffer));
// generate a command by percentages
@@ -3928,7 +3927,7 @@ static void crash_dummy()
}
strcat(readbuffer, "\033");
}
- chars_to_parse = strlen(readbuffer);
+ readbuffer[0] = strlen(readbuffer + 1);
cd1:
totalcmds++;
if (sleeptime > 0)