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+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.431
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.431
+Problem: Fetching a key at a prompt may be confused by escape sequences.
+ Especially when getting a prompt at a VimEnter autocommand.
+ (Alex Efros)
+Solution: Properly handle escape sequences deleted by check_termcode().
+Files: src/getchar.c, src/misc1.c, src/term.c, src/proto/term.pro
+
+
+*** ../vim-7.3.430/src/getchar.c 2012-02-05 01:18:41.000000000 +0100
+--- src/getchar.c 2012-02-05 22:04:33.000000000 +0100
+***************
+*** 2282,2288 ****
+ typebuf.tb_off] == RM_YES))
+ && !timedout)
+ {
+! keylen = check_termcode(max_mlen + 1, NULL, 0);
+
+ /* If no termcode matched but 'pastetoggle'
+ * matched partially it's like an incomplete key
+--- 2282,2289 ----
+ typebuf.tb_off] == RM_YES))
+ && !timedout)
+ {
+! keylen = check_termcode(max_mlen + 1,
+! NULL, 0, NULL);
+
+ /* If no termcode matched but 'pastetoggle'
+ * matched partially it's like an incomplete key
+*** ../vim-7.3.430/src/misc1.c 2012-01-10 18:37:53.000000000 +0100
+--- src/misc1.c 2012-02-05 21:59:53.000000000 +0100
+***************
+*** 3105,3112 ****
+ int
+ get_keystroke()
+ {
+! #define CBUFLEN 151
+! char_u buf[CBUFLEN];
+ int len = 0;
+ int n;
+ int save_mapped_ctrl_c = mapped_ctrl_c;
+--- 3105,3113 ----
+ int
+ get_keystroke()
+ {
+! char_u *buf = NULL;
+! int buflen = 150;
+! int maxlen;
+ int len = 0;
+ int n;
+ int save_mapped_ctrl_c = mapped_ctrl_c;
+***************
+*** 3118,3129 ****
+ cursor_on();
+ out_flush();
+
+ /* First time: blocking wait. Second time: wait up to 100ms for a
+! * terminal code to complete. Leave some room for check_termcode() to
+! * insert a key code into (max 5 chars plus NUL). And
+! * fix_input_buffer() can triple the number of bytes. */
+! n = ui_inchar(buf + len, (CBUFLEN - 6 - len) / 3,
+! len == 0 ? -1L : 100L, 0);
+ if (n > 0)
+ {
+ /* Replace zero and CSI by a special key code. */
+--- 3119,3147 ----
+ cursor_on();
+ out_flush();
+
++ /* Leave some room for check_termcode() to insert a key code into (max
++ * 5 chars plus NUL). And fix_input_buffer() can triple the number of
++ * bytes. */
++ maxlen = (buflen - 6 - len) / 3;
++ if (buf == NULL)
++ buf = alloc(buflen);
++ else if (maxlen < 10)
++ {
++ /* Need some more space. This migth happen when receiving a long
++ * escape sequence. */
++ buflen += 100;
++ buf = vim_realloc(buf, buflen);
++ maxlen = (buflen - 6 - len) / 3;
++ }
++ if (buf == NULL)
++ {
++ do_outofmem_msg((long_u)buflen);
++ return ESC; /* panic! */
++ }
++
+ /* First time: blocking wait. Second time: wait up to 100ms for a
+! * terminal code to complete. */
+! n = ui_inchar(buf + len, maxlen, len == 0 ? -1L : 100L, 0);
+ if (n > 0)
+ {
+ /* Replace zero and CSI by a special key code. */
+***************
+*** 3135,3141 ****
+ ++waited; /* keep track of the waiting time */
+
+ /* Incomplete termcode and not timed out yet: get more characters */
+! if ((n = check_termcode(1, buf, len)) < 0
+ && (!p_ttimeout || waited * 100L < (p_ttm < 0 ? p_tm : p_ttm)))
+ continue;
+
+--- 3153,3159 ----
+ ++waited; /* keep track of the waiting time */
+
+ /* Incomplete termcode and not timed out yet: get more characters */
+! if ((n = check_termcode(1, buf, buflen, &len)) < 0
+ && (!p_ttimeout || waited * 100L < (p_ttm < 0 ? p_tm : p_ttm)))
+ continue;
+
+***************
+*** 3203,3209 ****
+ {
+ if (MB_BYTE2LEN(n) > len)
+ continue; /* more bytes to get */
+! buf[len >= CBUFLEN ? CBUFLEN - 1 : len] = NUL;
+ n = (*mb_ptr2char)(buf);
+ }
+ #endif
+--- 3221,3227 ----
+ {
+ if (MB_BYTE2LEN(n) > len)
+ continue; /* more bytes to get */
+! buf[len >= buflen ? buflen - 1 : len] = NUL;
+ n = (*mb_ptr2char)(buf);
+ }
+ #endif
+***************
+*** 3213,3218 ****
+--- 3231,3237 ----
+ #endif
+ break;
+ }
++ vim_free(buf);
+
+ mapped_ctrl_c = save_mapped_ctrl_c;
+ return n;
+*** ../vim-7.3.430/src/term.c 2012-01-26 13:01:54.000000000 +0100
+--- src/term.c 2012-02-05 21:45:09.000000000 +0100
+***************
+*** 3785,3798 ****
+ * With a match, the match is removed, the replacement code is inserted in
+ * typebuf.tb_buf[] and the number of characters in typebuf.tb_buf[] is
+ * returned.
+! * When "buf" is not NULL, it is used instead of typebuf.tb_buf[]. "buflen" is
+! * then the length of the string in buf[].
+ */
+ int
+! check_termcode(max_offset, buf, buflen)
+ int max_offset;
+ char_u *buf;
+! int buflen;
+ {
+ char_u *tp;
+ char_u *p;
+--- 3785,3800 ----
+ * With a match, the match is removed, the replacement code is inserted in
+ * typebuf.tb_buf[] and the number of characters in typebuf.tb_buf[] is
+ * returned.
+! * When "buf" is not NULL, buf[bufsize] is used instead of typebuf.tb_buf[].
+! * "buflen" is then the length of the string in buf[] and is updated for
+! * inserts and deletes.
+ */
+ int
+! check_termcode(max_offset, buf, bufsize, buflen)
+ int max_offset;
+ char_u *buf;
+! int bufsize;
+! int *buflen;
+ {
+ char_u *tp;
+ char_u *p;
+***************
+*** 3864,3873 ****
+ }
+ else
+ {
+! if (offset >= buflen)
+ break;
+ tp = buf + offset;
+! len = buflen - offset;
+ }
+
+ /*
+--- 3866,3875 ----
+ }
+ else
+ {
+! if (offset >= *buflen)
+ break;
+ tp = buf + offset;
+! len = *buflen - offset;
+ }
+
+ /*
+***************
+*** 5002,5013 ****
+ if (extra < 0)
+ /* remove matched characters */
+ mch_memmove(buf + offset, buf + offset - extra,
+! (size_t)(buflen + offset + extra));
+ else if (extra > 0)
+! /* insert the extra space we need */
+ mch_memmove(buf + offset + extra, buf + offset,
+! (size_t)(buflen - offset));
+ mch_memmove(buf + offset, string, (size_t)new_slen);
+ }
+ return retval == 0 ? (len + extra + offset) : retval;
+ }
+--- 5004,5021 ----
+ if (extra < 0)
+ /* remove matched characters */
+ mch_memmove(buf + offset, buf + offset - extra,
+! (size_t)(*buflen + offset + extra));
+ else if (extra > 0)
+! {
+! /* Insert the extra space we need. If there is insufficient
+! * space return -1. */
+! if (*buflen + extra + new_slen >= bufsize)
+! return -1;
+ mch_memmove(buf + offset + extra, buf + offset,
+! (size_t)(*buflen - offset));
+! }
+ mch_memmove(buf + offset, string, (size_t)new_slen);
++ *buflen = *buflen + extra + new_slen;
+ }
+ return retval == 0 ? (len + extra + offset) : retval;
+ }
+*** ../vim-7.3.430/src/proto/term.pro 2010-08-15 21:57:28.000000000 +0200
+--- src/proto/term.pro 2012-02-05 21:45:16.000000000 +0100
+***************
+*** 50,56 ****
+ char_u *get_termcode __ARGS((int i));
+ void del_termcode __ARGS((char_u *name));
+ void set_mouse_topline __ARGS((win_T *wp));
+! int check_termcode __ARGS((int max_offset, char_u *buf, int buflen));
+ char_u *replace_termcodes __ARGS((char_u *from, char_u **bufp, int from_part, int do_lt, int special));
+ int find_term_bykeys __ARGS((char_u *src));
+ void show_termcodes __ARGS((void));
+--- 50,56 ----
+ char_u *get_termcode __ARGS((int i));
+ void del_termcode __ARGS((char_u *name));
+ void set_mouse_topline __ARGS((win_T *wp));
+! int check_termcode __ARGS((int max_offset, char_u *buf, int bufsize, int *buflen));
+ char_u *replace_termcodes __ARGS((char_u *from, char_u **bufp, int from_part, int do_lt, int special));
+ int find_term_bykeys __ARGS((char_u *src));
+ void show_termcodes __ARGS((void));
+*** ../vim-7.3.430/src/version.c 2012-02-05 20:08:30.000000000 +0100
+--- src/version.c 2012-02-05 22:03:43.000000000 +0100
+***************
+*** 716,717 ****
+--- 716,719 ----
+ { /* Add new patch number below this line */
++ /**/
++ 431,
+ /**/
+
+--
+"You know, it's at times like this when I'm trapped in a Vogon airlock with
+a man from Betelgeuse and about to die of asphyxiation in deep space that I
+really wish I'd listened to what my mother told me when I was young!"
+"Why, what did she tell you?"
+"I don't know, I didn't listen!"
+ -- Arthur Dent and Ford Prefect in Douglas Adams'
+ "The Hitchhiker's Guide to the Galaxy"
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
+/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\ an exciting new programming language -- http://www.Zimbu.org ///
+ \\\ help me help AIDS victims -- http://ICCF-Holland.org ///
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