[hackers] [scroll] match on PageUp/Down esc sequences for scroll events || Jan Klemkow

[git]

commit d32eb919fc093507c514ffbb4c70b6eba3f251ae
Author:     Jan Klemkow <j.klem...@wemelug.de>
AuthorDate: Thu Apr 2 21:41:32 2020 +0200
Commit:     Jan Klemkow <j.klem...@wemelug.de>
CommitDate: Thu Apr 2 21:41:32 2020 +0200

    match on PageUp/Down esc sequences for scroll events

diff --git a/scroll.c b/scroll.c
index 3c31e1f..4d3aede 100644
--- a/scroll.c
+++ b/scroll.c
@@ -388,17 +388,14 @@ main(int argc, char *argv[])
                        if (n <= 0 && errno != EINTR)
                                die("read:");
 
-                       /* iterate over the input buffer */
-                       for (char *c = input; n-- > 0; c++) {
-                               if (*c == 17) /* ^Q */
-                                       scrollup();
-                               else if (*c == 18) /* ^R */
-                                       scrolldown(buf, pos);
-                               else if (write(mfd, c, 1) == -1)
-                                       die("write:");
-                               else if (bottom != TAILQ_FIRST(&head))
-                                       jumpdown(buf, pos);
-                       }
+                       if (strncmp("\033[5;2~", input, n) == 0)
+                               scrollup();
+                       else if (strncmp("\033[6;2~", input, n) == 0)
+                               scrolldown(buf, pos);
+                       else if (write(mfd, input, n) == -1)
+                               die("write:");
+                       else if (bottom != TAILQ_FIRST(&head))
+                               jumpdown(buf, pos);
                }
                if (pfd[1].revents & POLLIN) {
                        ssize_t n = read(mfd, input, sizeof input);