From d2be11fbf21ee37d6ae86818f2c1790ecf8fecca Mon Sep 17 00:00:00 2001 From: Michael Ennen Date: Sat, 26 Nov 2016 16:34:52 -0700 Subject: vim-patch:7.4.1735 Problem: It is not possible to only see part of the message history. It is not possible to clear messages. Solution: Add a count to ":messages" and a clear argument. (Yasuhiro Matsumoto) https://github.com/vim/vim/commit/451f849fd6282a4facd4f0f58af62837443fb5a6 --- src/nvim/message.c | 41 +++++++++++++++++++++++++++++++++++++---- 1 file changed, 37 insertions(+), 4 deletions(-) (limited to 'src/nvim/message.c') diff --git a/src/nvim/message.c b/src/nvim/message.c index f9cfc49197..3163a797ed 100644 --- a/src/nvim/message.c +++ b/src/nvim/message.c @@ -720,14 +720,47 @@ int delete_first_msg(void) void ex_messages(exarg_T *eap) { struct msg_hist *p; + int c = 0; - msg_hist_off = TRUE; + if (STRCMP(eap->arg, "clear") == 0) { + int keep = eap->addr_count == 0 ? 0 : eap->line2; + + while (msg_hist_len > keep) { + (void)delete_first_msg(); + } + return; + } + + if (*eap->arg != NUL) { + EMSG(_(e_invarg)); + return; + } + + msg_hist_off = true; + + p = first_msg_hist; + + if (eap->addr_count != 0) { + // Count total messages + for (; p != NULL && !got_int; p = p->next) { + c++; + } + + c -= eap->line2; + + // Skip without number of messages specified + for (p = first_msg_hist; p != NULL && !got_int && c > 0; p = p->next, c--) { + } + } - for (p = first_msg_hist; p != NULL && !got_int; p = p->next) - if (p->msg != NULL) + // Display what was not skipped. + for (; p != NULL && !got_int; p = p->next) { + if (p->msg != NULL) { msg_attr(p->msg, p->attr); + } + } - msg_hist_off = FALSE; + msg_hist_off = false; } /* -- cgit