Comment and whitespace tweaks.

diff --git a/editors/vi.c b/editors/vi.c
index 8944f77..50dda7f 100644 (file)
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -2243,11 +2243,9 @@ static char readit(void) // read (maybe cursor) key from stdin
 
        n = chars_to_parse;
        if (n == 0) {
-               // If no data, block waiting for input.
-               // Can't read more than minimal ESC sequence size -
-               // see "n = 0" below. Example of mishandled
-               // sequence if we read 4 chars here: "ESC O A ESC O A".
-               // We'll read "ESC O A ESC" and lose second ESC!
+               // If no data, block waiting for input.  (If we read more than the
+               // minimal ESC sequence size, the "n=0" below would instead have to
+               // figure out how much to keep, resulting in larger code.)
                n = safe_read(0, readbuffer, 3);
                if (n <= 0) {
  error:
@@ -2272,7 +2270,8 @@ static char readit(void)  // read (maybe cursor) key from stdin
 
                pfd.fd = STDIN_FILENO;
                pfd.events = POLLIN;
-               for (eindex = esccmds; eindex < esccmds + ARRAY_SIZE(esccmds); eindex++) {
+               for (eindex = esccmds; eindex < esccmds + ARRAY_SIZE(esccmds); eindex++)
+               {
                        // n - position in sequence we did not read yet
                        int i = 0; // position in sequence to compare
 
@@ -2286,10 +2285,7 @@ static char readit(void) // read (maybe cursor) key from stdin
 
                                        // Timeout is needed to reconnect escape sequences
                                        // split up by transmission over a serial console.
-                                       // Even though inter-char delay on 1200 baud is <10ms,
-                                       // process scheduling can enlarge it arbitrarily,
-                                       // on both send and receive sides.
-                                       // Erring on the safe side - 5 timer ticks on 100 HZ.
+
                                        if (safe_poll(&pfd, 1, 50)) {
                                                if (safe_read(0, readbuffer + n, 1) <= 0)
                                                        goto error;