mirror of
https://github.com/vim/vim
synced 2025-03-16 06:47:52 +01:00
Problem: [security]: heap-buffer-overflow with visual mode when using :all, causing Vim trying to access beyond end-of-line (gandalf) Solution: Reset visual mode on :all, validate position in gchar_pos() and charwise_block_prep() This fixes CVE-2025-22134 Github Advisory: https://github.com/vim/vim/security/advisories/GHSA-5rgf-26wj-48v8 Co-authored-by: zeertzjq <zeertzjq@outlook.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
2859 lines
64 KiB
C
2859 lines
64 KiB
C
/* vi:set ts=8 sts=4 sw=4 noet:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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* See README.txt for an overview of the Vim source code.
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*/
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/*
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* misc1.c: functions that didn't seem to fit elsewhere
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*/
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#include "vim.h"
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#include "version.h"
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#if defined(__HAIKU__)
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# include <storage/FindDirectory.h>
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#endif
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#if defined(MSWIN)
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# include <lm.h>
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#endif
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#define URL_SLASH 1 // path_is_url() has found "://"
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#define URL_BACKSLASH 2 // path_is_url() has found ":\\"
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// All user names (for ~user completion as done by shell).
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static garray_T ga_users;
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/*
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* get_leader_len() returns the length in bytes of the prefix of the given
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* string which introduces a comment. If this string is not a comment then
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* 0 is returned.
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* When "flags" is not NULL, it is set to point to the flags of the recognized
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* comment leader.
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* "backward" must be true for the "O" command.
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* If "include_space" is set, include trailing whitespace while calculating the
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* length.
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*/
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int
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get_leader_len(
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char_u *line,
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char_u **flags,
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int backward,
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int include_space)
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{
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int i, j;
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int result;
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int got_com = FALSE;
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int found_one;
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char_u part_buf[COM_MAX_LEN]; // buffer for one option part
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char_u *string; // pointer to comment string
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char_u *list;
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int middle_match_len = 0;
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char_u *prev_list;
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char_u *saved_flags = NULL;
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result = i = 0;
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while (VIM_ISWHITE(line[i])) // leading white space is ignored
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++i;
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/*
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* Repeat to match several nested comment strings.
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*/
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while (line[i] != NUL)
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{
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/*
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* scan through the 'comments' option for a match
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*/
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found_one = FALSE;
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for (list = curbuf->b_p_com; *list; )
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{
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// Get one option part into part_buf[]. Advance "list" to next
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// one. Put "string" at start of string.
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if (!got_com && flags != NULL)
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*flags = list; // remember where flags started
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prev_list = list;
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(void)copy_option_part(&list, part_buf, COM_MAX_LEN, ",");
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string = vim_strchr(part_buf, ':');
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if (string == NULL) // missing ':', ignore this part
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continue;
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*string++ = NUL; // isolate flags from string
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// If we found a middle match previously, use that match when this
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// is not a middle or end.
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if (middle_match_len != 0
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&& vim_strchr(part_buf, COM_MIDDLE) == NULL
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&& vim_strchr(part_buf, COM_END) == NULL)
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break;
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// When we already found a nested comment, only accept further
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// nested comments.
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if (got_com && vim_strchr(part_buf, COM_NEST) == NULL)
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continue;
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// When 'O' flag present and using "O" command skip this one.
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if (backward && vim_strchr(part_buf, COM_NOBACK) != NULL)
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continue;
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// Line contents and string must match.
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// When string starts with white space, must have some white space
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// (but the amount does not need to match, there might be a mix of
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// TABs and spaces).
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if (VIM_ISWHITE(string[0]))
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{
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if (i == 0 || !VIM_ISWHITE(line[i - 1]))
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continue; // missing white space
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while (VIM_ISWHITE(string[0]))
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++string;
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}
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for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j)
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;
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if (string[j] != NUL)
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continue; // string doesn't match
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// When 'b' flag used, there must be white space or an
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// end-of-line after the string in the line.
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if (vim_strchr(part_buf, COM_BLANK) != NULL
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&& !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL)
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continue;
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// We have found a match, stop searching unless this is a middle
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// comment. The middle comment can be a substring of the end
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// comment in which case it's better to return the length of the
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// end comment and its flags. Thus we keep searching with middle
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// and end matches and use an end match if it matches better.
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if (vim_strchr(part_buf, COM_MIDDLE) != NULL)
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{
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if (middle_match_len == 0)
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{
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middle_match_len = j;
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saved_flags = prev_list;
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}
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continue;
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}
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if (middle_match_len != 0 && j > middle_match_len)
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// Use this match instead of the middle match, since it's a
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// longer thus better match.
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middle_match_len = 0;
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if (middle_match_len == 0)
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i += j;
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found_one = TRUE;
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break;
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}
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if (middle_match_len != 0)
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{
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// Use the previously found middle match after failing to find a
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// match with an end.
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if (!got_com && flags != NULL)
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*flags = saved_flags;
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i += middle_match_len;
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found_one = TRUE;
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}
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// No match found, stop scanning.
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if (!found_one)
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break;
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result = i;
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// Include any trailing white space.
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while (VIM_ISWHITE(line[i]))
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++i;
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if (include_space)
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result = i;
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// If this comment doesn't nest, stop here.
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got_com = TRUE;
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if (vim_strchr(part_buf, COM_NEST) == NULL)
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break;
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}
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return result;
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}
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/*
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* Return the offset at which the last comment in line starts. If there is no
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* comment in the whole line, -1 is returned.
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*
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* When "flags" is not null, it is set to point to the flags describing the
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* recognized comment leader.
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*/
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int
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get_last_leader_offset(char_u *line, char_u **flags)
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{
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int result = -1;
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int i, j;
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int lower_check_bound = 0;
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char_u *string;
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char_u *com_leader;
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char_u *com_flags;
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char_u *list;
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int found_one;
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char_u part_buf[COM_MAX_LEN]; // buffer for one option part
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/*
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* Repeat to match several nested comment strings.
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*/
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i = (int)STRLEN(line);
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while (--i >= lower_check_bound)
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{
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/*
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* scan through the 'comments' option for a match
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*/
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found_one = FALSE;
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for (list = curbuf->b_p_com; *list; )
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{
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char_u *flags_save = list;
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/*
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* Get one option part into part_buf[]. Advance list to next one.
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* put string at start of string.
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*/
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(void)copy_option_part(&list, part_buf, COM_MAX_LEN, ",");
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string = vim_strchr(part_buf, ':');
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if (string == NULL) // If everything is fine, this cannot actually
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// happen.
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continue;
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*string++ = NUL; // Isolate flags from string.
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com_leader = string;
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/*
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* Line contents and string must match.
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* When string starts with white space, must have some white space
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* (but the amount does not need to match, there might be a mix of
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* TABs and spaces).
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*/
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if (VIM_ISWHITE(string[0]))
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{
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if (i == 0 || !VIM_ISWHITE(line[i - 1]))
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continue;
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while (VIM_ISWHITE(*string))
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++string;
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}
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for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j)
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/* do nothing */;
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if (string[j] != NUL)
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continue;
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/*
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* When 'b' flag used, there must be white space or an
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* end-of-line after the string in the line.
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*/
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if (vim_strchr(part_buf, COM_BLANK) != NULL
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&& !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL)
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continue;
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if (vim_strchr(part_buf, COM_MIDDLE) != NULL)
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{
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// For a middlepart comment, only consider it to match if
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// everything before the current position in the line is
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// whitespace. Otherwise we would think we are inside a
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// comment if the middle part appears somewhere in the middle
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// of the line. E.g. for C the "*" appears often.
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for (j = 0; VIM_ISWHITE(line[j]) && j <= i; j++)
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;
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if (j < i)
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continue;
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}
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/*
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* We have found a match, stop searching.
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*/
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found_one = TRUE;
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if (flags)
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*flags = flags_save;
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com_flags = flags_save;
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break;
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}
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if (found_one)
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{
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char_u part_buf2[COM_MAX_LEN]; // buffer for one option part
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int len1, len2, off;
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result = i;
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/*
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* If this comment nests, continue searching.
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*/
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if (vim_strchr(part_buf, COM_NEST) != NULL)
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continue;
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lower_check_bound = i;
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// Let's verify whether the comment leader found is a substring
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// of other comment leaders. If it is, let's adjust the
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// lower_check_bound so that we make sure that we have determined
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// the comment leader correctly.
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while (VIM_ISWHITE(*com_leader))
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++com_leader;
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len1 = (int)STRLEN(com_leader);
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for (list = curbuf->b_p_com; *list; )
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{
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char_u *flags_save = list;
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(void)copy_option_part(&list, part_buf2, COM_MAX_LEN, ",");
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if (flags_save == com_flags)
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continue;
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string = vim_strchr(part_buf2, ':');
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++string;
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while (VIM_ISWHITE(*string))
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++string;
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len2 = (int)STRLEN(string);
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if (len2 == 0)
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continue;
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// Now we have to verify whether string ends with a substring
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// beginning the com_leader.
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for (off = (len2 > i ? i : len2); off > 0 && off + len1 > len2;)
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{
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--off;
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if (!STRNCMP(string + off, com_leader, len2 - off))
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{
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if (i - off < lower_check_bound)
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lower_check_bound = i - off;
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}
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}
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}
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}
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}
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return result;
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}
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/*
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* Return the number of window lines occupied by buffer line "lnum".
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* Includes any filler lines.
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*/
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int
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plines(linenr_T lnum)
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{
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return plines_win(curwin, lnum, TRUE);
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}
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int
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plines_win(
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win_T *wp,
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linenr_T lnum,
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int limit_winheight) // when TRUE limit to window height
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{
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#if defined(FEAT_DIFF) || defined(PROTO)
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// Check for filler lines above this buffer line. When folded the result
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// is one line anyway.
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return plines_win_nofill(wp, lnum, limit_winheight)
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+ diff_check_fill(wp, lnum);
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}
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/*
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* Return the number of window lines occupied by buffer line "lnum".
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* Does not include filler lines.
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*/
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int
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plines_nofill(linenr_T lnum)
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{
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return plines_win_nofill(curwin, lnum, TRUE);
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}
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int
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plines_win_nofill(
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win_T *wp,
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linenr_T lnum,
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int limit_winheight) // when TRUE limit to window height
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{
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#endif
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int lines;
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if (wp->w_width == 0)
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return 1;
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#ifdef FEAT_FOLDING
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// Folded lines are handled just like an empty line.
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// NOTE: Caller must handle lines that are MAYBE folded.
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if (lineFolded(wp, lnum) == TRUE)
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return 1;
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#endif
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if (!wp->w_p_wrap)
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lines = 1
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#ifdef FEAT_PROP_POPUP
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// add a line for each "above" and "below" aligned text property
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+ prop_count_above_below(wp->w_buffer, lnum)
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#endif
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;
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else
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lines = plines_win_nofold(wp, lnum);
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if (limit_winheight && lines > wp->w_height)
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return wp->w_height;
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return lines;
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}
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/*
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* Return number of window lines physical line "lnum" will occupy in window
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* "wp". Does not care about folding, 'wrap' or 'diff'.
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*/
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int
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plines_win_nofold(win_T *wp, linenr_T lnum)
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{
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char_u *s;
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long col;
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int width;
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chartabsize_T cts;
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s = ml_get_buf(wp->w_buffer, lnum, FALSE);
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init_chartabsize_arg(&cts, wp, lnum, 0, s, s);
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if (*s == NUL
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#ifdef FEAT_PROP_POPUP
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&& !cts.cts_has_prop_with_text
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#endif
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)
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return 1; // be quick for an empty line
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win_linetabsize_cts(&cts, (colnr_T)MAXCOL);
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clear_chartabsize_arg(&cts);
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col = (int)cts.cts_vcol;
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// If list mode is on, then the '$' at the end of the line may take up one
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// extra column.
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if (wp->w_p_list && wp->w_lcs_chars.eol != NUL)
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col += 1;
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/*
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* Add column offset for 'number', 'relativenumber' and 'foldcolumn'.
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*/
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width = wp->w_width - win_col_off(wp);
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if (width <= 0)
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return 32000;
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if (col <= width)
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return 1;
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col -= width;
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width += win_col_off2(wp);
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return (col + (width - 1)) / width + 1;
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}
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/*
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* Like plines_win(), but only reports the number of physical screen lines
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* used from the start of the line to the given column number.
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*/
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int
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plines_win_col(win_T *wp, linenr_T lnum, long column)
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{
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long col;
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int lines = 0;
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int width;
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char_u *line;
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chartabsize_T cts;
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#ifdef FEAT_DIFF
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// Check for filler lines above this buffer line. When folded the result
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// is one line anyway.
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lines = diff_check_fill(wp, lnum);
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#endif
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if (!wp->w_p_wrap)
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return lines + 1;
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if (wp->w_width == 0)
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return lines + 1;
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line = ml_get_buf(wp->w_buffer, lnum, FALSE);
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init_chartabsize_arg(&cts, wp, lnum, 0, line, line);
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while (*cts.cts_ptr != NUL && --column >= 0)
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{
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cts.cts_vcol += win_lbr_chartabsize(&cts, NULL);
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MB_PTR_ADV(cts.cts_ptr);
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}
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/*
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* If *cts.cts_ptr is a TAB, and the TAB is not displayed as ^I, and we're
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* not in MODE_INSERT state, then col must be adjusted so that it
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* represents the last screen position of the TAB. This only fixes an
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* error when the TAB wraps from one screen line to the next (when
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* 'columns' is not a multiple of 'ts') -- webb.
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*/
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col = cts.cts_vcol;
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if (*cts.cts_ptr == TAB && (State & MODE_NORMAL)
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&& (!wp->w_p_list || wp->w_lcs_chars.tab1))
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col += win_lbr_chartabsize(&cts, NULL) - 1;
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clear_chartabsize_arg(&cts);
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/*
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* Add column offset for 'number', 'relativenumber', 'foldcolumn', etc.
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*/
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width = wp->w_width - win_col_off(wp);
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if (width <= 0)
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return 9999;
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lines += 1;
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if (col > width)
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lines += (col - width) / (width + win_col_off2(wp)) + 1;
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return lines;
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}
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|
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/*
|
|
* Return number of window lines the physical line range from "first" until
|
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* "last" will occupy in window "wp". Takes into account folding, 'wrap',
|
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* topfill and filler lines beyond the end of the buffer. Limit to "max" lines.
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*/
|
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int
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plines_m_win(win_T *wp, linenr_T first, linenr_T last, int max)
|
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{
|
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int count = 0;
|
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|
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while (first <= last && count < max)
|
|
{
|
|
#ifdef FEAT_FOLDING
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int x;
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|
|
// Check if there are any really folded lines, but also included lines
|
|
// that are maybe folded.
|
|
x = foldedCount(wp, first, NULL);
|
|
if (x > 0)
|
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{
|
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++count; // count 1 for "+-- folded" line
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first += x;
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}
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else
|
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#endif
|
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{
|
|
#ifdef FEAT_DIFF
|
|
if (first == wp->w_topline)
|
|
count += plines_win_nofill(wp, first, FALSE) + wp->w_topfill;
|
|
else
|
|
#endif
|
|
count += plines_win(wp, first, FALSE);
|
|
++first;
|
|
}
|
|
}
|
|
#ifdef FEAT_DIFF
|
|
if (first == wp->w_buffer->b_ml.ml_line_count + 1)
|
|
count += diff_check_fill(wp, first);
|
|
#endif
|
|
return MIN(max, count);
|
|
}
|
|
|
|
int
|
|
gchar_pos(pos_T *pos)
|
|
{
|
|
char_u *ptr;
|
|
int ptrlen;
|
|
|
|
// When searching columns is sometimes put at the end of a line.
|
|
if (pos->col == MAXCOL)
|
|
return NUL;
|
|
ptrlen = ml_get_len(pos->lnum);
|
|
ptr = ml_get_pos(pos);
|
|
if (pos->col > ptrlen)
|
|
return NUL;
|
|
if (has_mbyte)
|
|
return (*mb_ptr2char)(ptr);
|
|
return (int)*ptr;
|
|
}
|
|
|
|
int
|
|
gchar_cursor(void)
|
|
{
|
|
if (has_mbyte)
|
|
return (*mb_ptr2char)(ml_get_cursor());
|
|
return (int)*ml_get_cursor();
|
|
}
|
|
|
|
/*
|
|
* Write a character at the current cursor position.
|
|
* It is directly written into the block.
|
|
*/
|
|
void
|
|
pchar_cursor(int c)
|
|
{
|
|
*(ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE)
|
|
+ curwin->w_cursor.col) = c;
|
|
}
|
|
|
|
/*
|
|
* Skip to next part of an option argument: Skip space and comma.
|
|
*/
|
|
char_u *
|
|
skip_to_option_part(char_u *p)
|
|
{
|
|
if (*p == ',')
|
|
++p;
|
|
while (*p == ' ')
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* check_status: called when the status bars for the buffer 'buf'
|
|
* need to be updated
|
|
*/
|
|
void
|
|
check_status(buf_T *buf)
|
|
{
|
|
win_T *wp;
|
|
|
|
FOR_ALL_WINDOWS(wp)
|
|
if (wp->w_buffer == buf && wp->w_status_height)
|
|
{
|
|
wp->w_redr_status = TRUE;
|
|
set_must_redraw(UPD_VALID);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Ask for a reply from the user, a 'y' or a 'n', with prompt "str" (which
|
|
* should have been translated already).
|
|
* No other characters are accepted, the message is repeated until a valid
|
|
* reply is entered or CTRL-C is hit.
|
|
* If direct is TRUE, don't use vgetc() but ui_inchar(), don't get characters
|
|
* from any buffers but directly from the user.
|
|
*
|
|
* return the 'y' or 'n'
|
|
*/
|
|
int
|
|
ask_yesno(char_u *str, int direct)
|
|
{
|
|
int r = ' ';
|
|
int save_State = State;
|
|
|
|
if (exiting) // put terminal in raw mode for this question
|
|
settmode(TMODE_RAW);
|
|
++no_wait_return;
|
|
#ifdef USE_ON_FLY_SCROLL
|
|
dont_scroll = TRUE; // disallow scrolling here
|
|
#endif
|
|
State = MODE_CONFIRM; // mouse behaves like with :confirm
|
|
setmouse(); // disables mouse for xterm
|
|
++no_mapping;
|
|
++allow_keys; // no mapping here, but recognize keys
|
|
|
|
while (r != 'y' && r != 'n')
|
|
{
|
|
// same highlighting as for wait_return()
|
|
smsg_attr(HL_ATTR(HLF_R), "%s (y/n)?", str);
|
|
if (direct)
|
|
r = get_keystroke();
|
|
else
|
|
r = plain_vgetc();
|
|
if (r == Ctrl_C || r == ESC)
|
|
r = 'n';
|
|
msg_putchar(r); // show what you typed
|
|
out_flush();
|
|
}
|
|
--no_wait_return;
|
|
State = save_State;
|
|
setmouse();
|
|
--no_mapping;
|
|
--allow_keys;
|
|
|
|
return r;
|
|
}
|
|
|
|
#if defined(FEAT_EVAL) || defined(PROTO)
|
|
|
|
/*
|
|
* Returns the current mode as a string in "buf[MODE_MAX_LENGTH]", NUL
|
|
* terminated.
|
|
* The first character represents the major mode, the following ones the minor
|
|
* ones.
|
|
*/
|
|
void
|
|
get_mode(char_u *buf)
|
|
{
|
|
int i = 0;
|
|
|
|
if (time_for_testing == 93784)
|
|
{
|
|
// Testing the two-character code.
|
|
buf[i++] = 'x';
|
|
buf[i++] = '!';
|
|
}
|
|
#ifdef FEAT_TERMINAL
|
|
else if (term_use_loop())
|
|
{
|
|
if (State & MODE_CMDLINE)
|
|
buf[i++] = 'c';
|
|
buf[i++] = 't';
|
|
}
|
|
#endif
|
|
else if (State == MODE_HITRETURN || State == MODE_ASKMORE
|
|
|| State == MODE_SETWSIZE
|
|
|| State == MODE_CONFIRM)
|
|
{
|
|
buf[i++] = 'r';
|
|
if (State == MODE_ASKMORE)
|
|
buf[i++] = 'm';
|
|
else if (State == MODE_CONFIRM)
|
|
buf[i++] = '?';
|
|
}
|
|
else if (State == MODE_EXTERNCMD)
|
|
buf[i++] = '!';
|
|
else if (State & MODE_INSERT)
|
|
{
|
|
if (State & VREPLACE_FLAG)
|
|
{
|
|
buf[i++] = 'R';
|
|
buf[i++] = 'v';
|
|
}
|
|
else
|
|
{
|
|
if (State & REPLACE_FLAG)
|
|
buf[i++] = 'R';
|
|
else
|
|
buf[i++] = 'i';
|
|
}
|
|
|
|
if (ins_compl_active())
|
|
buf[i++] = 'c';
|
|
else if (ctrl_x_mode_not_defined_yet())
|
|
buf[i++] = 'x';
|
|
}
|
|
else if ((State & MODE_CMDLINE) || exmode_active)
|
|
{
|
|
buf[i++] = 'c';
|
|
if (exmode_active == EXMODE_VIM)
|
|
buf[i++] = 'v';
|
|
else if (exmode_active == EXMODE_NORMAL)
|
|
buf[i++] = 'e';
|
|
if ((State & MODE_CMDLINE) && cmdline_overstrike())
|
|
buf[i++] = 'r';
|
|
}
|
|
else if (VIsual_active)
|
|
{
|
|
if (VIsual_select)
|
|
buf[i++] = VIsual_mode + 's' - 'v';
|
|
else
|
|
{
|
|
buf[i++] = VIsual_mode;
|
|
if (restart_VIsual_select)
|
|
buf[i++] = 's';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buf[i++] = 'n';
|
|
if (finish_op)
|
|
{
|
|
buf[i++] = 'o';
|
|
// to be able to detect force-linewise/blockwise/characterwise
|
|
// operations
|
|
buf[i++] = motion_force;
|
|
}
|
|
else if (restart_edit == 'I' || restart_edit == 'R'
|
|
|| restart_edit == 'V')
|
|
{
|
|
buf[i++] = 'i';
|
|
buf[i++] = restart_edit;
|
|
}
|
|
#ifdef FEAT_TERMINAL
|
|
else if (term_in_normal_mode())
|
|
buf[i++] = 't';
|
|
#endif
|
|
}
|
|
|
|
buf[i] = NUL;
|
|
}
|
|
|
|
/*
|
|
* "mode()" function
|
|
*/
|
|
void
|
|
f_mode(typval_T *argvars, typval_T *rettv)
|
|
{
|
|
char_u buf[MODE_MAX_LENGTH];
|
|
|
|
if (in_vim9script() && check_for_opt_bool_arg(argvars, 0) == FAIL)
|
|
return;
|
|
|
|
get_mode(buf);
|
|
|
|
// Clear out the minor mode when the argument is not a non-zero number or
|
|
// non-empty string.
|
|
if (!non_zero_arg(&argvars[0]))
|
|
buf[1] = NUL;
|
|
|
|
rettv->vval.v_string = vim_strsave(buf);
|
|
rettv->v_type = VAR_STRING;
|
|
}
|
|
|
|
static void
|
|
may_add_state_char(garray_T *gap, char_u *include, int c)
|
|
{
|
|
if (include == NULL || vim_strchr(include, c) != NULL)
|
|
ga_append(gap, c);
|
|
}
|
|
|
|
/*
|
|
* "state()" function
|
|
*/
|
|
void
|
|
f_state(typval_T *argvars, typval_T *rettv)
|
|
{
|
|
garray_T ga;
|
|
char_u *include = NULL;
|
|
int i;
|
|
|
|
if (in_vim9script() && check_for_opt_string_arg(argvars, 0) == FAIL)
|
|
return;
|
|
|
|
ga_init2(&ga, 1, 20);
|
|
if (argvars[0].v_type != VAR_UNKNOWN)
|
|
include = tv_get_string(&argvars[0]);
|
|
|
|
if (!(stuff_empty() && typebuf.tb_len == 0 && scriptin[curscript] == NULL))
|
|
may_add_state_char(&ga, include, 'm');
|
|
if (op_pending())
|
|
may_add_state_char(&ga, include, 'o');
|
|
if (autocmd_busy)
|
|
may_add_state_char(&ga, include, 'x');
|
|
if (ins_compl_active())
|
|
may_add_state_char(&ga, include, 'a');
|
|
|
|
# ifdef FEAT_JOB_CHANNEL
|
|
if (channel_in_blocking_wait())
|
|
may_add_state_char(&ga, include, 'w');
|
|
# endif
|
|
if (!get_was_safe_state())
|
|
may_add_state_char(&ga, include, 'S');
|
|
for (i = 0; i < get_callback_depth() && i < 3; ++i)
|
|
may_add_state_char(&ga, include, 'c');
|
|
if (msg_scrolled > 0)
|
|
may_add_state_char(&ga, include, 's');
|
|
|
|
rettv->v_type = VAR_STRING;
|
|
rettv->vval.v_string = ga.ga_data;
|
|
}
|
|
|
|
#endif // FEAT_EVAL
|
|
|
|
/*
|
|
* Get a key stroke directly from the user.
|
|
* Ignores mouse clicks and scrollbar events, except a click for the left
|
|
* button (used at the more prompt).
|
|
* Doesn't use vgetc(), because it syncs undo and eats mapped characters.
|
|
* Disadvantage: typeahead is ignored.
|
|
* Translates the interrupt character for unix to ESC.
|
|
*/
|
|
int
|
|
get_keystroke(void)
|
|
{
|
|
char_u *buf = NULL;
|
|
int buflen = 150;
|
|
int maxlen;
|
|
int len = 0;
|
|
int n;
|
|
int save_mapped_ctrl_c = mapped_ctrl_c;
|
|
int waited = 0;
|
|
|
|
mapped_ctrl_c = FALSE; // mappings are not used here
|
|
for (;;)
|
|
{
|
|
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)
|
|
{
|
|
char_u *t_buf = buf;
|
|
|
|
// Need some more space. This might happen when receiving a long
|
|
// escape sequence.
|
|
buflen += 100;
|
|
buf = vim_realloc(buf, buflen);
|
|
if (buf == NULL)
|
|
vim_free(t_buf);
|
|
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.
|
|
n = fix_input_buffer(buf + len, n);
|
|
len += n;
|
|
waited = 0;
|
|
}
|
|
else if (len > 0)
|
|
++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;
|
|
|
|
if (n == KEYLEN_REMOVED) // key code removed
|
|
{
|
|
if (must_redraw != 0 && !need_wait_return && (State
|
|
& (MODE_CMDLINE | MODE_HITRETURN | MODE_ASKMORE)) == 0)
|
|
{
|
|
// Redrawing was postponed, do it now.
|
|
update_screen(0);
|
|
setcursor(); // put cursor back where it belongs
|
|
}
|
|
continue;
|
|
}
|
|
if (n > 0) // found a termcode: adjust length
|
|
len = n;
|
|
if (len == 0) // nothing typed yet
|
|
continue;
|
|
|
|
// Handle modifier and/or special key code.
|
|
n = buf[0];
|
|
if (n == K_SPECIAL)
|
|
{
|
|
n = TO_SPECIAL(buf[1], buf[2]);
|
|
if (buf[1] == KS_MODIFIER
|
|
|| n == K_IGNORE
|
|
|| (is_mouse_key(n) && n != K_LEFTMOUSE)
|
|
#ifdef FEAT_GUI
|
|
|| n == K_VER_SCROLLBAR
|
|
|| n == K_HOR_SCROLLBAR
|
|
#endif
|
|
)
|
|
{
|
|
if (buf[1] == KS_MODIFIER)
|
|
mod_mask = buf[2];
|
|
len -= 3;
|
|
if (len > 0)
|
|
mch_memmove(buf, buf + 3, (size_t)len);
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
if (has_mbyte)
|
|
{
|
|
if (MB_BYTE2LEN(n) > len)
|
|
continue; // more bytes to get
|
|
buf[len >= buflen ? buflen - 1 : len] = NUL;
|
|
n = (*mb_ptr2char)(buf);
|
|
}
|
|
#ifdef UNIX
|
|
if (n == intr_char)
|
|
n = ESC;
|
|
#endif
|
|
break;
|
|
}
|
|
vim_free(buf);
|
|
|
|
mapped_ctrl_c = save_mapped_ctrl_c;
|
|
return n;
|
|
}
|
|
|
|
// For overflow detection, add a digit safely to an int value.
|
|
static int
|
|
vim_append_digit_int(int *value, int digit)
|
|
{
|
|
int x = *value;
|
|
if (x > ((INT_MAX - digit) / 10))
|
|
return FAIL;
|
|
*value = x * 10 + digit;
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* Get a number from the user.
|
|
* When "mouse_used" is not NULL allow using the mouse.
|
|
*/
|
|
int
|
|
get_number(
|
|
int colon, // allow colon to abort
|
|
int *mouse_used)
|
|
{
|
|
int n = 0;
|
|
int c;
|
|
int typed = 0;
|
|
|
|
if (mouse_used != NULL)
|
|
*mouse_used = FALSE;
|
|
|
|
// When not printing messages, the user won't know what to type, return a
|
|
// zero (as if CR was hit).
|
|
if (msg_silent != 0)
|
|
return 0;
|
|
|
|
#ifdef USE_ON_FLY_SCROLL
|
|
dont_scroll = TRUE; // disallow scrolling here
|
|
#endif
|
|
++no_mapping;
|
|
++allow_keys; // no mapping here, but recognize keys
|
|
for (;;)
|
|
{
|
|
windgoto(msg_row, msg_col);
|
|
c = safe_vgetc();
|
|
if (VIM_ISDIGIT(c))
|
|
{
|
|
if (vim_append_digit_int(&n, c - '0') == FAIL)
|
|
return 0;
|
|
msg_putchar(c);
|
|
++typed;
|
|
}
|
|
else if (c == K_DEL || c == K_KDEL || c == K_BS || c == Ctrl_H)
|
|
{
|
|
if (typed > 0)
|
|
{
|
|
msg_puts("\b \b");
|
|
--typed;
|
|
}
|
|
n /= 10;
|
|
}
|
|
else if (mouse_used != NULL && c == K_LEFTMOUSE)
|
|
{
|
|
*mouse_used = TRUE;
|
|
n = mouse_row + 1;
|
|
break;
|
|
}
|
|
else if (n == 0 && c == ':' && colon)
|
|
{
|
|
stuffcharReadbuff(':');
|
|
if (!exmode_active)
|
|
cmdline_row = msg_row;
|
|
skip_redraw = TRUE; // skip redraw once
|
|
do_redraw = FALSE;
|
|
break;
|
|
}
|
|
else if (c == Ctrl_C || c == ESC || c == 'q')
|
|
{
|
|
n = 0;
|
|
break;
|
|
}
|
|
else if (c == CAR || c == NL )
|
|
break;
|
|
}
|
|
--no_mapping;
|
|
--allow_keys;
|
|
return n;
|
|
}
|
|
|
|
/*
|
|
* Ask the user to enter a number.
|
|
* When "mouse_used" is not NULL allow using the mouse and in that case return
|
|
* the line number.
|
|
*/
|
|
int
|
|
prompt_for_number(int *mouse_used)
|
|
{
|
|
int i;
|
|
int save_cmdline_row;
|
|
int save_State;
|
|
|
|
// When using ":silent" assume that <CR> was entered.
|
|
if (mouse_used != NULL)
|
|
msg_puts(_("Type number and <Enter> or click with the mouse (q or empty cancels): "));
|
|
else
|
|
msg_puts(_("Type number and <Enter> (q or empty cancels): "));
|
|
|
|
// Set the state such that text can be selected/copied/pasted and we still
|
|
// get mouse events. redraw_after_callback() will not redraw if cmdline_row
|
|
// is zero.
|
|
save_cmdline_row = cmdline_row;
|
|
cmdline_row = 0;
|
|
save_State = State;
|
|
State = MODE_CMDLINE;
|
|
// May show different mouse shape.
|
|
setmouse();
|
|
|
|
i = get_number(TRUE, mouse_used);
|
|
if (KeyTyped)
|
|
{
|
|
// don't call wait_return() now
|
|
if (msg_row > 0)
|
|
cmdline_row = msg_row - 1;
|
|
need_wait_return = FALSE;
|
|
msg_didany = FALSE;
|
|
msg_didout = FALSE;
|
|
}
|
|
else
|
|
cmdline_row = save_cmdline_row;
|
|
State = save_State;
|
|
// May need to restore mouse shape.
|
|
setmouse();
|
|
|
|
return i;
|
|
}
|
|
|
|
void
|
|
msgmore(long n)
|
|
{
|
|
long pn;
|
|
|
|
if (global_busy // no messages now, wait until global is finished
|
|
|| !messaging()) // 'lazyredraw' set, don't do messages now
|
|
return;
|
|
|
|
// We don't want to overwrite another important message, but do overwrite
|
|
// a previous "more lines" or "fewer lines" message, so that "5dd" and
|
|
// then "put" reports the last action.
|
|
if (keep_msg != NULL && !keep_msg_more)
|
|
return;
|
|
|
|
if (n > 0)
|
|
pn = n;
|
|
else
|
|
pn = -n;
|
|
|
|
if (pn > p_report)
|
|
{
|
|
if (n > 0)
|
|
vim_snprintf(msg_buf, MSG_BUF_LEN,
|
|
NGETTEXT("%ld more line", "%ld more lines", pn), pn);
|
|
else
|
|
vim_snprintf(msg_buf, MSG_BUF_LEN,
|
|
NGETTEXT("%ld line less", "%ld fewer lines", pn), pn);
|
|
if (got_int)
|
|
vim_strcat((char_u *)msg_buf, (char_u *)_(" (Interrupted)"),
|
|
MSG_BUF_LEN);
|
|
if (msg(msg_buf))
|
|
{
|
|
set_keep_msg((char_u *)msg_buf, 0);
|
|
keep_msg_more = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* flush map and typeahead buffers and give a warning for an error
|
|
*/
|
|
void
|
|
beep_flush(void)
|
|
{
|
|
if (emsg_silent == 0)
|
|
{
|
|
flush_buffers(FLUSH_MINIMAL);
|
|
vim_beep(BO_ERROR);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Give a warning for an error. "val" is one of the BO_ values, e.g., BO_OPER.
|
|
*/
|
|
void
|
|
vim_beep(unsigned val)
|
|
{
|
|
#ifdef FEAT_EVAL
|
|
called_vim_beep = TRUE;
|
|
#endif
|
|
|
|
if (emsg_silent != 0 || in_assert_fails)
|
|
return;
|
|
|
|
if (!((bo_flags & val) || (bo_flags & BO_ALL)))
|
|
{
|
|
#ifdef ELAPSED_FUNC
|
|
static int did_init = FALSE;
|
|
static elapsed_T start_tv;
|
|
|
|
// Only beep once per half a second, otherwise a sequence of beeps
|
|
// would freeze Vim.
|
|
if (!did_init || ELAPSED_FUNC(start_tv) > 500)
|
|
{
|
|
did_init = TRUE;
|
|
ELAPSED_INIT(start_tv);
|
|
#endif
|
|
if (p_vb
|
|
#ifdef FEAT_GUI
|
|
// While the GUI is starting up the termcap is set for
|
|
// the GUI but the output still goes to a terminal.
|
|
&& !(gui.in_use && gui.starting)
|
|
#endif
|
|
)
|
|
{
|
|
out_str_cf(T_VB);
|
|
#ifdef FEAT_VTP
|
|
// No restore color information, refresh the screen.
|
|
if (has_vtp_working() != 0
|
|
# ifdef FEAT_TERMGUICOLORS
|
|
&& (p_tgc || (!p_tgc && t_colors >= 256))
|
|
# endif
|
|
)
|
|
{
|
|
redraw_later(UPD_CLEAR);
|
|
update_screen(0);
|
|
redrawcmd();
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
out_char(BELL);
|
|
#ifdef ELAPSED_FUNC
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// When 'debug' contains "beep" produce a message. If we are sourcing
|
|
// a script or executing a function give the user a hint where the beep
|
|
// comes from.
|
|
if (vim_strchr(p_debug, 'e') != NULL)
|
|
{
|
|
msg_source(HL_ATTR(HLF_W));
|
|
msg_attr(_("Beep!"), HL_ATTR(HLF_W));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* To get the "real" home directory:
|
|
* - get value of $HOME
|
|
* For Unix:
|
|
* - go to that directory
|
|
* - do mch_dirname() to get the real name of that directory.
|
|
* This also works with mounts and links.
|
|
* Don't do this for MS-DOS, it will change the "current dir" for a drive.
|
|
* For Windows:
|
|
* This code is duplicated in init_homedir() in dosinst.c. Keep in sync!
|
|
*/
|
|
void
|
|
init_homedir(void)
|
|
{
|
|
char_u *var;
|
|
|
|
// In case we are called a second time (when 'encoding' changes).
|
|
VIM_CLEAR(homedir);
|
|
|
|
#ifdef VMS
|
|
var = mch_getenv((char_u *)"SYS$LOGIN");
|
|
#else
|
|
var = mch_getenv((char_u *)"HOME");
|
|
#endif
|
|
|
|
#ifdef MSWIN
|
|
/*
|
|
* Typically, $HOME is not defined on Windows, unless the user has
|
|
* specifically defined it for Vim's sake. However, on Windows NT
|
|
* platforms, $HOMEDRIVE and $HOMEPATH are automatically defined for
|
|
* each user. Try constructing $HOME from these.
|
|
*/
|
|
if (var == NULL || *var == NUL)
|
|
{
|
|
char_u *homedrive, *homepath;
|
|
|
|
homedrive = mch_getenv((char_u *)"HOMEDRIVE");
|
|
homepath = mch_getenv((char_u *)"HOMEPATH");
|
|
if (homepath == NULL || *homepath == NUL)
|
|
homepath = (char_u *)"\\";
|
|
if (homedrive != NULL
|
|
&& STRLEN(homedrive) + STRLEN(homepath) < MAXPATHL)
|
|
{
|
|
sprintf((char *)NameBuff, "%s%s", homedrive, homepath);
|
|
if (NameBuff[0] != NUL)
|
|
var = NameBuff;
|
|
}
|
|
}
|
|
|
|
if (var == NULL)
|
|
var = mch_getenv((char_u *)"USERPROFILE");
|
|
|
|
/*
|
|
* Weird but true: $HOME may contain an indirect reference to another
|
|
* variable, esp. "%USERPROFILE%". Happens when $USERPROFILE isn't set
|
|
* when $HOME is being set.
|
|
*/
|
|
if (var != NULL && *var == '%')
|
|
{
|
|
char_u *p;
|
|
char_u *exp;
|
|
|
|
p = vim_strchr(var + 1, '%');
|
|
if (p != NULL)
|
|
{
|
|
vim_strncpy(NameBuff, var + 1, p - (var + 1));
|
|
exp = mch_getenv(NameBuff);
|
|
if (exp != NULL && *exp != NUL
|
|
&& STRLEN(exp) + STRLEN(p) < MAXPATHL)
|
|
{
|
|
vim_snprintf((char *)NameBuff, MAXPATHL, "%s%s", exp, p + 1);
|
|
var = NameBuff;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (var != NULL && *var == NUL) // empty is same as not set
|
|
var = NULL;
|
|
|
|
if (enc_utf8 && var != NULL)
|
|
{
|
|
int len;
|
|
char_u *pp = NULL;
|
|
|
|
// Convert from active codepage to UTF-8. Other conversions are
|
|
// not done, because they would fail for non-ASCII characters.
|
|
acp_to_enc(var, (int)STRLEN(var), &pp, &len);
|
|
if (pp != NULL)
|
|
{
|
|
homedir = pp;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Default home dir is C:/
|
|
* Best assumption we can make in such a situation.
|
|
*/
|
|
if (var == NULL)
|
|
var = (char_u *)"C:/";
|
|
#endif
|
|
|
|
if (var != NULL)
|
|
{
|
|
#ifdef UNIX
|
|
/*
|
|
* Change to the directory and get the actual path. This resolves
|
|
* links. Don't do it when we can't return.
|
|
*/
|
|
if (mch_dirname(NameBuff, MAXPATHL) == OK
|
|
&& mch_chdir((char *)NameBuff) == 0)
|
|
{
|
|
if (!mch_chdir((char *)var) && mch_dirname(IObuff, IOSIZE) == OK)
|
|
var = IObuff;
|
|
if (mch_chdir((char *)NameBuff) != 0)
|
|
emsg(_(e_cannot_go_back_to_previous_directory));
|
|
}
|
|
#endif
|
|
homedir = vim_strsave(var);
|
|
}
|
|
}
|
|
|
|
#if defined(EXITFREE) || defined(PROTO)
|
|
void
|
|
free_homedir(void)
|
|
{
|
|
vim_free(homedir);
|
|
}
|
|
|
|
void
|
|
free_users(void)
|
|
{
|
|
ga_clear_strings(&ga_users);
|
|
}
|
|
#endif
|
|
|
|
#if defined(MSWIN) || defined(PROTO)
|
|
/*
|
|
* Initialize $VIM and $VIMRUNTIME when 'enc' is updated.
|
|
*/
|
|
void
|
|
init_vimdir(void)
|
|
{
|
|
int mustfree;
|
|
char_u *p;
|
|
|
|
mch_get_exe_name();
|
|
|
|
mustfree = FALSE;
|
|
didset_vim = FALSE;
|
|
p = vim_getenv((char_u *)"VIM", &mustfree);
|
|
if (mustfree)
|
|
vim_free(p);
|
|
|
|
mustfree = FALSE;
|
|
didset_vimruntime = FALSE;
|
|
p = vim_getenv((char_u *)"VIMRUNTIME", &mustfree);
|
|
if (mustfree)
|
|
vim_free(p);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Call expand_env() and store the result in an allocated string.
|
|
* This is not very memory efficient, this expects the result to be freed
|
|
* again soon.
|
|
*/
|
|
char_u *
|
|
expand_env_save(char_u *src)
|
|
{
|
|
return expand_env_save_opt(src, FALSE);
|
|
}
|
|
|
|
/*
|
|
* Idem, but when "one" is TRUE handle the string as one file name, only
|
|
* expand "~" at the start.
|
|
*/
|
|
char_u *
|
|
expand_env_save_opt(char_u *src, int one)
|
|
{
|
|
char_u *p;
|
|
|
|
p = alloc(MAXPATHL);
|
|
if (p != NULL)
|
|
expand_env_esc(src, p, MAXPATHL, FALSE, one, NULL);
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Expand environment variable with path name.
|
|
* "~/" is also expanded, using $HOME. For Unix "~user/" is expanded.
|
|
* Skips over "\ ", "\~" and "\$" (not for Win32 though).
|
|
* If anything fails no expansion is done and dst equals src.
|
|
*/
|
|
void
|
|
expand_env(
|
|
char_u *src, // input string e.g. "$HOME/vim.hlp"
|
|
char_u *dst, // where to put the result
|
|
int dstlen) // maximum length of the result
|
|
{
|
|
expand_env_esc(src, dst, dstlen, FALSE, FALSE, NULL);
|
|
}
|
|
|
|
void
|
|
expand_env_esc(
|
|
char_u *srcp, // input string e.g. "$HOME/vim.hlp"
|
|
char_u *dst, // where to put the result
|
|
int dstlen, // maximum length of the result
|
|
int esc, // escape spaces in expanded variables
|
|
int one, // "srcp" is one file name
|
|
char_u *startstr) // start again after this (can be NULL)
|
|
{
|
|
char_u *src;
|
|
char_u *tail;
|
|
int c;
|
|
char_u *var;
|
|
int copy_char;
|
|
int mustfree; // var was allocated, need to free it later
|
|
int at_start = TRUE; // at start of a name
|
|
int startstr_len = 0;
|
|
|
|
if (startstr != NULL)
|
|
startstr_len = (int)STRLEN(startstr);
|
|
|
|
src = skipwhite(srcp);
|
|
--dstlen; // leave one char space for "\,"
|
|
while (*src && dstlen > 0)
|
|
{
|
|
#ifdef FEAT_EVAL
|
|
// Skip over `=expr`.
|
|
if (src[0] == '`' && src[1] == '=')
|
|
{
|
|
size_t len;
|
|
|
|
var = src;
|
|
src += 2;
|
|
(void)skip_expr(&src, NULL);
|
|
if (*src == '`')
|
|
++src;
|
|
len = src - var;
|
|
if (len > (size_t)dstlen)
|
|
len = dstlen;
|
|
vim_strncpy(dst, var, len);
|
|
dst += len;
|
|
dstlen -= (int)len;
|
|
continue;
|
|
}
|
|
#endif
|
|
copy_char = TRUE;
|
|
if ((*src == '$'
|
|
#ifdef VMS
|
|
&& at_start
|
|
#endif
|
|
)
|
|
#if defined(MSWIN)
|
|
|| *src == '%'
|
|
#endif
|
|
|| (*src == '~' && at_start))
|
|
{
|
|
mustfree = FALSE;
|
|
|
|
/*
|
|
* The variable name is copied into dst temporarily, because it may
|
|
* be a string in read-only memory and a NUL needs to be appended.
|
|
*/
|
|
if (*src != '~') // environment var
|
|
{
|
|
tail = src + 1;
|
|
var = dst;
|
|
c = dstlen - 1;
|
|
|
|
#ifdef UNIX
|
|
// Unix has ${var-name} type environment vars
|
|
if (*tail == '{' && !vim_isIDc('{'))
|
|
{
|
|
tail++; // ignore '{'
|
|
while (c-- > 0 && *tail && *tail != '}')
|
|
*var++ = *tail++;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
while (c-- > 0 && *tail != NUL && ((vim_isIDc(*tail))
|
|
#if defined(MSWIN)
|
|
|| (*src == '%' && *tail != '%')
|
|
#endif
|
|
))
|
|
*var++ = *tail++;
|
|
}
|
|
|
|
#if defined(MSWIN) || defined(UNIX)
|
|
# ifdef UNIX
|
|
if (src[1] == '{' && *tail != '}')
|
|
# else
|
|
if (*src == '%' && *tail != '%')
|
|
# endif
|
|
var = NULL;
|
|
else
|
|
{
|
|
# ifdef UNIX
|
|
if (src[1] == '{')
|
|
# else
|
|
if (*src == '%')
|
|
#endif
|
|
++tail;
|
|
#endif
|
|
*var = NUL;
|
|
var = vim_getenv(dst, &mustfree);
|
|
#if defined(MSWIN) || defined(UNIX)
|
|
}
|
|
#endif
|
|
}
|
|
// home directory
|
|
else if ( src[1] == NUL
|
|
|| vim_ispathsep(src[1])
|
|
|| vim_strchr((char_u *)" ,\t\n", src[1]) != NULL)
|
|
{
|
|
var = homedir;
|
|
tail = src + 1;
|
|
}
|
|
else // user directory
|
|
{
|
|
#if defined(UNIX) || (defined(VMS) && defined(USER_HOME))
|
|
/*
|
|
* Copy ~user to dst[], so we can put a NUL after it.
|
|
*/
|
|
tail = src;
|
|
var = dst;
|
|
c = dstlen - 1;
|
|
while ( c-- > 0
|
|
&& *tail
|
|
&& vim_isfilec(*tail)
|
|
&& !vim_ispathsep(*tail))
|
|
*var++ = *tail++;
|
|
*var = NUL;
|
|
# ifdef UNIX
|
|
/*
|
|
* If the system supports getpwnam(), use it.
|
|
* Otherwise, or if getpwnam() fails, the shell is used to
|
|
* expand ~user. This is slower and may fail if the shell
|
|
* does not support ~user (old versions of /bin/sh).
|
|
*/
|
|
# if defined(HAVE_GETPWNAM) && defined(HAVE_PWD_H)
|
|
{
|
|
// Note: memory allocated by getpwnam() is never freed.
|
|
// Calling endpwent() apparently doesn't help.
|
|
struct passwd *pw = (*dst == NUL)
|
|
? NULL : getpwnam((char *)dst + 1);
|
|
|
|
var = (pw == NULL) ? NULL : (char_u *)pw->pw_dir;
|
|
}
|
|
if (var == NULL)
|
|
# endif
|
|
{
|
|
expand_T xpc;
|
|
|
|
ExpandInit(&xpc);
|
|
xpc.xp_context = EXPAND_FILES;
|
|
var = ExpandOne(&xpc, dst, NULL,
|
|
WILD_ADD_SLASH|WILD_SILENT, WILD_EXPAND_FREE);
|
|
mustfree = TRUE;
|
|
}
|
|
|
|
# else // !UNIX, thus VMS
|
|
/*
|
|
* USER_HOME is a comma-separated list of
|
|
* directories to search for the user account in.
|
|
*/
|
|
{
|
|
char_u test[MAXPATHL], paths[MAXPATHL];
|
|
char_u *path, *next_path, *ptr;
|
|
stat_T st;
|
|
|
|
STRCPY(paths, USER_HOME);
|
|
next_path = paths;
|
|
while (*next_path)
|
|
{
|
|
for (path = next_path; *next_path && *next_path != ',';
|
|
next_path++);
|
|
if (*next_path)
|
|
*next_path++ = NUL;
|
|
STRCPY(test, path);
|
|
STRCAT(test, "/");
|
|
STRCAT(test, dst + 1);
|
|
if (mch_stat(test, &st) == 0)
|
|
{
|
|
var = alloc(STRLEN(test) + 1);
|
|
STRCPY(var, test);
|
|
mustfree = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
# endif // UNIX
|
|
#else
|
|
// cannot expand user's home directory, so don't try
|
|
var = NULL;
|
|
tail = (char_u *)""; // for gcc
|
|
#endif // UNIX || VMS
|
|
}
|
|
|
|
#ifdef BACKSLASH_IN_FILENAME
|
|
// If 'shellslash' is set change backslashes to forward slashes.
|
|
// Can't use slash_adjust(), p_ssl may be set temporarily.
|
|
if (p_ssl && var != NULL && vim_strchr(var, '\\') != NULL)
|
|
{
|
|
char_u *p = vim_strsave(var);
|
|
|
|
if (p != NULL)
|
|
{
|
|
if (mustfree)
|
|
vim_free(var);
|
|
var = p;
|
|
mustfree = TRUE;
|
|
forward_slash(var);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// If "var" contains white space, escape it with a backslash.
|
|
// Required for ":e ~/tt" when $HOME includes a space.
|
|
if (esc && var != NULL && vim_strpbrk(var, (char_u *)" \t") != NULL)
|
|
{
|
|
char_u *p = vim_strsave_escaped(var, (char_u *)" \t");
|
|
|
|
if (p != NULL)
|
|
{
|
|
if (mustfree)
|
|
vim_free(var);
|
|
var = p;
|
|
mustfree = TRUE;
|
|
}
|
|
}
|
|
|
|
if (var != NULL && *var != NUL
|
|
&& (STRLEN(var) + STRLEN(tail) + 1 < (unsigned)dstlen))
|
|
{
|
|
STRCPY(dst, var);
|
|
dstlen -= (int)STRLEN(var);
|
|
c = (int)STRLEN(var);
|
|
// if var[] ends in a path separator and tail[] starts
|
|
// with it, skip a character
|
|
if (after_pathsep(dst, dst + c)
|
|
#if defined(BACKSLASH_IN_FILENAME) || defined(AMIGA)
|
|
&& dst[c - 1] != ':'
|
|
#endif
|
|
&& vim_ispathsep(*tail))
|
|
++tail;
|
|
dst += c;
|
|
src = tail;
|
|
copy_char = FALSE;
|
|
}
|
|
if (mustfree)
|
|
vim_free(var);
|
|
}
|
|
|
|
if (copy_char) // copy at least one char
|
|
{
|
|
/*
|
|
* Recognize the start of a new name, for '~'.
|
|
* Don't do this when "one" is TRUE, to avoid expanding "~" in
|
|
* ":edit foo ~ foo".
|
|
*/
|
|
at_start = FALSE;
|
|
if (src[0] == '\\' && src[1] != NUL)
|
|
{
|
|
*dst++ = *src++;
|
|
--dstlen;
|
|
}
|
|
else if ((src[0] == ' ' || src[0] == ',') && !one)
|
|
at_start = TRUE;
|
|
if (dstlen > 0)
|
|
{
|
|
*dst++ = *src++;
|
|
--dstlen;
|
|
|
|
if (startstr != NULL && src - startstr_len >= srcp
|
|
&& STRNCMP(src - startstr_len, startstr,
|
|
startstr_len) == 0)
|
|
at_start = TRUE;
|
|
}
|
|
}
|
|
|
|
}
|
|
*dst = NUL;
|
|
}
|
|
|
|
/*
|
|
* If the string between "p" and "pend" ends in "name/", return "pend" minus
|
|
* the length of "name/". Otherwise return "pend".
|
|
*/
|
|
static char_u *
|
|
remove_tail(char_u *p, char_u *pend, char_u *name)
|
|
{
|
|
int len = (int)STRLEN(name) + 1;
|
|
char_u *newend = pend - len;
|
|
|
|
if (newend >= p
|
|
&& fnamencmp(newend, name, len - 1) == 0
|
|
&& (newend == p || after_pathsep(p, newend)))
|
|
return newend;
|
|
return pend;
|
|
}
|
|
|
|
/*
|
|
* Check if the directory "vimdir/<version>" or "vimdir/runtime" exists.
|
|
* Return NULL if not, return its name in allocated memory otherwise.
|
|
*/
|
|
static char_u *
|
|
vim_version_dir(char_u *vimdir)
|
|
{
|
|
char_u *p;
|
|
|
|
if (vimdir == NULL || *vimdir == NUL)
|
|
return NULL;
|
|
p = concat_fnames(vimdir, (char_u *)VIM_VERSION_NODOT, TRUE);
|
|
if (p != NULL && mch_isdir(p))
|
|
return p;
|
|
vim_free(p);
|
|
p = concat_fnames(vimdir, (char_u *)RUNTIME_DIRNAME, TRUE);
|
|
if (p != NULL && mch_isdir(p))
|
|
{
|
|
char_u *fname = concat_fnames(p, (char_u *)"defaults.vim", TRUE);
|
|
|
|
// Check that "defaults.vim" exists in this directory, to avoid picking
|
|
// up a stray "runtime" directory, it would make many tests fail in
|
|
// mysterious ways.
|
|
if (fname != NULL)
|
|
{
|
|
int exists = file_is_readable(fname);
|
|
|
|
vim_free(fname);
|
|
if (exists)
|
|
return p;
|
|
}
|
|
}
|
|
vim_free(p);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Vim's version of getenv().
|
|
* Special handling of $HOME, $VIM and $VIMRUNTIME.
|
|
* Also does ACP to 'enc' conversion for Win32.
|
|
* "mustfree" is set to TRUE when the returned string is allocated. It must be
|
|
* initialized to FALSE by the caller.
|
|
*/
|
|
char_u *
|
|
vim_getenv(char_u *name, int *mustfree)
|
|
{
|
|
char_u *p = NULL;
|
|
char_u *pend;
|
|
int vimruntime;
|
|
#ifdef MSWIN
|
|
WCHAR *wn, *wp;
|
|
|
|
// use "C:/" when $HOME is not set
|
|
if (STRCMP(name, "HOME") == 0)
|
|
return homedir;
|
|
|
|
// Use Wide function
|
|
wn = enc_to_utf16(name, NULL);
|
|
if (wn == NULL)
|
|
return NULL;
|
|
|
|
wp = _wgetenv(wn);
|
|
vim_free(wn);
|
|
|
|
if (wp != NULL && *wp == NUL) // empty is the same as not set
|
|
wp = NULL;
|
|
|
|
if (wp != NULL)
|
|
{
|
|
p = utf16_to_enc(wp, NULL);
|
|
if (p == NULL)
|
|
return NULL;
|
|
|
|
*mustfree = TRUE;
|
|
return p;
|
|
}
|
|
#else
|
|
p = mch_getenv(name);
|
|
if (p != NULL && *p == NUL) // empty is the same as not set
|
|
p = NULL;
|
|
|
|
if (p != NULL)
|
|
return p;
|
|
|
|
# ifdef __HAIKU__
|
|
// special handling for user settings directory...
|
|
if (STRCMP(name, "BE_USER_SETTINGS") == 0)
|
|
{
|
|
static char userSettingsPath[MAXPATHL];
|
|
|
|
if (find_directory(B_USER_SETTINGS_DIRECTORY, 0, false,
|
|
userSettingsPath, MAXPATHL) == B_OK)
|
|
return (char_u *)userSettingsPath;
|
|
else
|
|
return NULL;
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
// handling $VIMRUNTIME and $VIM is below, bail out if it's another name.
|
|
vimruntime = (STRCMP(name, "VIMRUNTIME") == 0);
|
|
if (!vimruntime && STRCMP(name, "VIM") != 0)
|
|
return NULL;
|
|
|
|
/*
|
|
* When expanding $VIMRUNTIME fails, try using $VIM/vim<version> or $VIM.
|
|
* Don't do this when default_vimruntime_dir is non-empty.
|
|
*/
|
|
if (vimruntime
|
|
#ifdef HAVE_PATHDEF
|
|
&& *default_vimruntime_dir == NUL
|
|
#endif
|
|
)
|
|
{
|
|
#ifdef MSWIN
|
|
// Use Wide function
|
|
wp = _wgetenv(L"VIM");
|
|
if (wp != NULL && *wp == NUL) // empty is the same as not set
|
|
wp = NULL;
|
|
if (wp != NULL)
|
|
{
|
|
char_u *q = utf16_to_enc(wp, NULL);
|
|
if (q != NULL)
|
|
{
|
|
p = vim_version_dir(q);
|
|
*mustfree = TRUE;
|
|
if (p == NULL)
|
|
p = q;
|
|
}
|
|
}
|
|
#else
|
|
p = mch_getenv((char_u *)"VIM");
|
|
if (p != NULL && *p == NUL) // empty is the same as not set
|
|
p = NULL;
|
|
if (p != NULL)
|
|
{
|
|
p = vim_version_dir(p);
|
|
if (p != NULL)
|
|
*mustfree = TRUE;
|
|
else
|
|
p = mch_getenv((char_u *)"VIM");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* When expanding $VIM or $VIMRUNTIME fails, try using:
|
|
* - the directory name from 'helpfile' (unless it contains '$')
|
|
* - the executable name from argv[0]
|
|
*/
|
|
if (p == NULL)
|
|
{
|
|
if (p_hf != NULL && vim_strchr(p_hf, '$') == NULL)
|
|
p = p_hf;
|
|
#ifdef USE_EXE_NAME
|
|
/*
|
|
* Use the name of the executable, obtained from argv[0].
|
|
*/
|
|
else
|
|
p = exe_name;
|
|
#endif
|
|
if (p != NULL)
|
|
{
|
|
// remove the file name
|
|
pend = gettail(p);
|
|
|
|
// remove "doc/" from 'helpfile', if present
|
|
if (p == p_hf)
|
|
pend = remove_tail(p, pend, (char_u *)"doc");
|
|
|
|
#ifdef USE_EXE_NAME
|
|
# ifdef MACOS_X
|
|
// remove "MacOS" from exe_name and add "Resources/vim"
|
|
if (p == exe_name)
|
|
{
|
|
char_u *pend1;
|
|
char_u *pnew;
|
|
|
|
pend1 = remove_tail(p, pend, (char_u *)"MacOS");
|
|
if (pend1 != pend)
|
|
{
|
|
pnew = alloc(pend1 - p + 15);
|
|
if (pnew != NULL)
|
|
{
|
|
STRNCPY(pnew, p, (pend1 - p));
|
|
STRCPY(pnew + (pend1 - p), "Resources/vim");
|
|
p = pnew;
|
|
pend = p + STRLEN(p);
|
|
}
|
|
}
|
|
}
|
|
# endif
|
|
// remove "src/" from exe_name, if present
|
|
if (p == exe_name)
|
|
pend = remove_tail(p, pend, (char_u *)"src");
|
|
#endif
|
|
|
|
// for $VIM, remove "runtime/" or "vim54/", if present
|
|
if (!vimruntime)
|
|
{
|
|
pend = remove_tail(p, pend, (char_u *)RUNTIME_DIRNAME);
|
|
pend = remove_tail(p, pend, (char_u *)VIM_VERSION_NODOT);
|
|
}
|
|
|
|
// remove trailing path separator
|
|
if (pend > p && after_pathsep(p, pend))
|
|
--pend;
|
|
|
|
#ifdef MACOS_X
|
|
if (p == exe_name || p == p_hf)
|
|
#endif
|
|
// check that the result is a directory name
|
|
p = vim_strnsave(p, pend - p);
|
|
|
|
if (p != NULL && !mch_isdir(p))
|
|
VIM_CLEAR(p);
|
|
else
|
|
{
|
|
#ifdef USE_EXE_NAME
|
|
// may add "/vim54" or "/runtime" if it exists
|
|
if (vimruntime && (pend = vim_version_dir(p)) != NULL)
|
|
{
|
|
vim_free(p);
|
|
p = pend;
|
|
}
|
|
#endif
|
|
*mustfree = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_PATHDEF
|
|
// When there is a pathdef.c file we can use default_vim_dir and
|
|
// default_vimruntime_dir
|
|
if (p == NULL)
|
|
{
|
|
// Only use default_vimruntime_dir when it is not empty
|
|
if (vimruntime && *default_vimruntime_dir != NUL)
|
|
{
|
|
p = default_vimruntime_dir;
|
|
*mustfree = FALSE;
|
|
}
|
|
else if (*default_vim_dir != NUL)
|
|
{
|
|
if (vimruntime && (p = vim_version_dir(default_vim_dir)) != NULL)
|
|
*mustfree = TRUE;
|
|
else
|
|
{
|
|
p = default_vim_dir;
|
|
*mustfree = FALSE;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Set the environment variable, so that the new value can be found fast
|
|
* next time, and others can also use it (e.g. Perl).
|
|
*/
|
|
if (p != NULL)
|
|
{
|
|
if (vimruntime)
|
|
{
|
|
vim_setenv((char_u *)"VIMRUNTIME", p);
|
|
didset_vimruntime = TRUE;
|
|
}
|
|
else
|
|
{
|
|
vim_setenv((char_u *)"VIM", p);
|
|
didset_vim = TRUE;
|
|
}
|
|
}
|
|
return p;
|
|
}
|
|
|
|
void
|
|
vim_unsetenv(char_u *var)
|
|
{
|
|
#ifdef HAVE_UNSETENV
|
|
unsetenv((char *)var);
|
|
#else
|
|
vim_setenv(var, (char_u *)"");
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Removes environment variable "name" and take care of side effects.
|
|
*/
|
|
void
|
|
vim_unsetenv_ext(char_u *var)
|
|
{
|
|
vim_unsetenv(var);
|
|
|
|
// "homedir" is not cleared, keep using the old value until $HOME is set.
|
|
if (STRICMP(var, "VIM") == 0)
|
|
didset_vim = FALSE;
|
|
else if (STRICMP(var, "VIMRUNTIME") == 0)
|
|
didset_vimruntime = FALSE;
|
|
}
|
|
|
|
#if defined(FEAT_EVAL) || defined(PROTO)
|
|
/*
|
|
* Set environment variable "name" and take care of side effects.
|
|
*/
|
|
void
|
|
vim_setenv_ext(char_u *name, char_u *val)
|
|
{
|
|
vim_setenv(name, val);
|
|
if (STRICMP(name, "HOME") == 0)
|
|
init_homedir();
|
|
else if (didset_vim && STRICMP(name, "VIM") == 0)
|
|
didset_vim = FALSE;
|
|
else if (didset_vimruntime && STRICMP(name, "VIMRUNTIME") == 0)
|
|
didset_vimruntime = FALSE;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Our portable version of setenv.
|
|
*/
|
|
void
|
|
vim_setenv(char_u *name, char_u *val)
|
|
{
|
|
#ifdef HAVE_SETENV
|
|
mch_setenv((char *)name, (char *)val, 1);
|
|
#else
|
|
char_u *envbuf;
|
|
|
|
/*
|
|
* Putenv does not copy the string, it has to remain
|
|
* valid. The allocated memory will never be freed.
|
|
*/
|
|
envbuf = alloc(STRLEN(name) + STRLEN(val) + 2);
|
|
if (envbuf != NULL)
|
|
{
|
|
sprintf((char *)envbuf, "%s=%s", name, val);
|
|
putenv((char *)envbuf);
|
|
}
|
|
#endif
|
|
#ifdef FEAT_GETTEXT
|
|
/*
|
|
* When setting $VIMRUNTIME adjust the directory to find message
|
|
* translations to $VIMRUNTIME/lang.
|
|
*/
|
|
if (*val != NUL && STRICMP(name, "VIMRUNTIME") == 0)
|
|
{
|
|
char_u *buf = concat_str(val, (char_u *)"/lang");
|
|
|
|
if (buf != NULL)
|
|
{
|
|
bindtextdomain(VIMPACKAGE, (char *)buf);
|
|
vim_free(buf);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Function given to ExpandGeneric() to obtain an environment variable name.
|
|
*/
|
|
char_u *
|
|
get_env_name(
|
|
expand_T *xp UNUSED,
|
|
int idx)
|
|
{
|
|
#if defined(AMIGA)
|
|
// No environ[] on the Amiga.
|
|
return NULL;
|
|
#else
|
|
# ifndef __WIN32__
|
|
// Borland C++ 5.2 has this in a header file.
|
|
extern char **environ;
|
|
# endif
|
|
char_u *str;
|
|
int n;
|
|
|
|
str = (char_u *)environ[idx];
|
|
if (str == NULL)
|
|
return NULL;
|
|
|
|
for (n = 0; n < EXPAND_BUF_LEN - 1; ++n)
|
|
{
|
|
if (str[n] == '=' || str[n] == NUL)
|
|
break;
|
|
xp->xp_buf[n] = str[n];
|
|
}
|
|
xp->xp_buf[n] = NUL;
|
|
return xp->xp_buf;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Add a user name to the list of users in ga_users.
|
|
* Do nothing if user name is NULL or empty.
|
|
*/
|
|
static void
|
|
add_user(char_u *user, int need_copy)
|
|
{
|
|
char_u *user_copy = (user != NULL && need_copy)
|
|
? vim_strsave(user) : user;
|
|
|
|
if (user_copy == NULL || *user_copy == NUL || ga_grow(&ga_users, 1) == FAIL)
|
|
{
|
|
if (need_copy)
|
|
vim_free(user_copy);
|
|
return;
|
|
}
|
|
((char_u **)(ga_users.ga_data))[ga_users.ga_len++] = user_copy;
|
|
}
|
|
|
|
/*
|
|
* Find all user names for user completion.
|
|
* Done only once and then cached.
|
|
*/
|
|
static void
|
|
init_users(void)
|
|
{
|
|
static int lazy_init_done = FALSE;
|
|
|
|
if (lazy_init_done)
|
|
return;
|
|
|
|
lazy_init_done = TRUE;
|
|
ga_init2(&ga_users, sizeof(char_u *), 20);
|
|
|
|
# if defined(HAVE_GETPWENT) && defined(HAVE_PWD_H)
|
|
{
|
|
struct passwd* pw;
|
|
|
|
setpwent();
|
|
while ((pw = getpwent()) != NULL)
|
|
add_user((char_u *)pw->pw_name, TRUE);
|
|
endpwent();
|
|
}
|
|
# elif defined(MSWIN)
|
|
{
|
|
DWORD nusers = 0, ntotal = 0, i;
|
|
PUSER_INFO_0 uinfo;
|
|
|
|
if (NetUserEnum(NULL, 0, 0, (LPBYTE *) &uinfo, MAX_PREFERRED_LENGTH,
|
|
&nusers, &ntotal, NULL) == NERR_Success)
|
|
{
|
|
for (i = 0; i < nusers; i++)
|
|
add_user(utf16_to_enc(uinfo[i].usri0_name, NULL), FALSE);
|
|
|
|
NetApiBufferFree(uinfo);
|
|
}
|
|
}
|
|
# endif
|
|
# if defined(HAVE_GETPWNAM)
|
|
{
|
|
char_u *user_env = mch_getenv((char_u *)"USER");
|
|
|
|
// The $USER environment variable may be a valid remote user name (NIS,
|
|
// LDAP) not already listed by getpwent(), as getpwent() only lists
|
|
// local user names. If $USER is not already listed, check whether it
|
|
// is a valid remote user name using getpwnam() and if it is, add it to
|
|
// the list of user names.
|
|
|
|
if (user_env != NULL && *user_env != NUL)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ga_users.ga_len; i++)
|
|
{
|
|
char_u *local_user = ((char_u **)ga_users.ga_data)[i];
|
|
|
|
if (STRCMP(local_user, user_env) == 0)
|
|
break;
|
|
}
|
|
|
|
if (i == ga_users.ga_len)
|
|
{
|
|
struct passwd *pw = getpwnam((char *)user_env);
|
|
|
|
if (pw != NULL)
|
|
add_user((char_u *)pw->pw_name, TRUE);
|
|
}
|
|
}
|
|
}
|
|
# endif
|
|
}
|
|
|
|
/*
|
|
* Function given to ExpandGeneric() to obtain user names.
|
|
*/
|
|
char_u*
|
|
get_users(expand_T *xp UNUSED, int idx)
|
|
{
|
|
init_users();
|
|
if (idx < ga_users.ga_len)
|
|
return ((char_u **)ga_users.ga_data)[idx];
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Check whether name matches a user name. Return:
|
|
* 0 if name does not match any user name.
|
|
* 1 if name partially matches the beginning of a user name.
|
|
* 2 is name fully matches a user name.
|
|
*/
|
|
int
|
|
match_user(char_u *name)
|
|
{
|
|
int i;
|
|
int n = (int)STRLEN(name);
|
|
int result = 0;
|
|
|
|
init_users();
|
|
for (i = 0; i < ga_users.ga_len; i++)
|
|
{
|
|
if (STRCMP(((char_u **)ga_users.ga_data)[i], name) == 0)
|
|
return 2; // full match
|
|
if (STRNCMP(((char_u **)ga_users.ga_data)[i], name, n) == 0)
|
|
result = 1; // partial match
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
prepare_to_exit(void)
|
|
{
|
|
#if defined(SIGHUP) && defined(SIG_IGN)
|
|
// Ignore SIGHUP, because a dropped connection causes a read error, which
|
|
// makes Vim exit and then handling SIGHUP causes various reentrance
|
|
// problems.
|
|
mch_signal(SIGHUP, SIG_IGN);
|
|
#endif
|
|
|
|
#ifdef FEAT_GUI
|
|
if (gui.in_use)
|
|
{
|
|
gui.dying = TRUE;
|
|
out_trash(); // trash any pending output
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
windgoto((int)Rows - 1, 0);
|
|
|
|
/*
|
|
* Switch terminal mode back now, so messages end up on the "normal"
|
|
* screen (if there are two screens).
|
|
*/
|
|
settmode(TMODE_COOK);
|
|
stoptermcap();
|
|
out_flush();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Preserve files and exit.
|
|
* When called IObuff must contain a message.
|
|
* NOTE: This may be called from deathtrap() in a signal handler, avoid unsafe
|
|
* functions, such as allocating memory.
|
|
*/
|
|
void
|
|
preserve_exit(void)
|
|
{
|
|
buf_T *buf;
|
|
|
|
prepare_to_exit();
|
|
|
|
// Setting this will prevent free() calls. That avoids calling free()
|
|
// recursively when free() was invoked with a bad pointer.
|
|
really_exiting = TRUE;
|
|
|
|
out_str(IObuff);
|
|
screen_start(); // don't know where cursor is now
|
|
out_flush();
|
|
|
|
ml_close_notmod(); // close all not-modified buffers
|
|
|
|
FOR_ALL_BUFFERS(buf)
|
|
{
|
|
if (buf->b_ml.ml_mfp != NULL && buf->b_ml.ml_mfp->mf_fname != NULL)
|
|
{
|
|
OUT_STR("Vim: preserving files...\r\n");
|
|
screen_start(); // don't know where cursor is now
|
|
out_flush();
|
|
ml_sync_all(FALSE, FALSE); // preserve all swap files
|
|
break;
|
|
}
|
|
}
|
|
|
|
ml_close_all(FALSE); // close all memfiles, without deleting
|
|
|
|
OUT_STR("Vim: Finished.\r\n");
|
|
|
|
getout(1);
|
|
}
|
|
|
|
/*
|
|
* Check for CTRL-C pressed, but only once in a while.
|
|
* Should be used instead of ui_breakcheck() for functions that check for
|
|
* each line in the file. Calling ui_breakcheck() each time takes too much
|
|
* time, because it can be a system call.
|
|
*/
|
|
|
|
#ifndef BREAKCHECK_SKIP
|
|
# define BREAKCHECK_SKIP 1000
|
|
#endif
|
|
|
|
static int breakcheck_count = 0;
|
|
|
|
void
|
|
line_breakcheck(void)
|
|
{
|
|
if (++breakcheck_count >= BREAKCHECK_SKIP)
|
|
{
|
|
breakcheck_count = 0;
|
|
ui_breakcheck();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Like line_breakcheck() but check 10 times less often.
|
|
*/
|
|
void
|
|
fast_breakcheck(void)
|
|
{
|
|
if (++breakcheck_count >= BREAKCHECK_SKIP * 10)
|
|
{
|
|
breakcheck_count = 0;
|
|
ui_breakcheck();
|
|
}
|
|
}
|
|
|
|
# if defined(FEAT_SPELL) || defined(PROTO)
|
|
/*
|
|
* Like line_breakcheck() but check 100 times less often.
|
|
*/
|
|
void
|
|
veryfast_breakcheck(void)
|
|
{
|
|
if (++breakcheck_count >= BREAKCHECK_SKIP * 100)
|
|
{
|
|
breakcheck_count = 0;
|
|
ui_breakcheck();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(VIM_BACKTICK) || defined(FEAT_EVAL) \
|
|
|| (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \
|
|
|| defined(PROTO)
|
|
|
|
#ifndef SEEK_SET
|
|
# define SEEK_SET 0
|
|
#endif
|
|
#ifndef SEEK_END
|
|
# define SEEK_END 2
|
|
#endif
|
|
|
|
/*
|
|
* Get the stdout of an external command.
|
|
* If "ret_len" is NULL replace NUL characters with NL. When "ret_len" is not
|
|
* NULL store the length there.
|
|
* Returns an allocated string, or NULL for error.
|
|
*/
|
|
char_u *
|
|
get_cmd_output(
|
|
char_u *cmd,
|
|
char_u *infile, // optional input file name
|
|
int flags, // can be SHELL_SILENT
|
|
int *ret_len)
|
|
{
|
|
char_u *tempname;
|
|
char_u *command;
|
|
char_u *buffer = NULL;
|
|
int len;
|
|
int i = 0;
|
|
FILE *fd;
|
|
|
|
if (check_restricted() || check_secure())
|
|
return NULL;
|
|
|
|
// get a name for the temp file
|
|
if ((tempname = vim_tempname('o', FALSE)) == NULL)
|
|
{
|
|
emsg(_(e_cant_get_temp_file_name));
|
|
return NULL;
|
|
}
|
|
|
|
// Add the redirection stuff
|
|
command = make_filter_cmd(cmd, infile, tempname);
|
|
if (command == NULL)
|
|
goto done;
|
|
|
|
/*
|
|
* Call the shell to execute the command (errors are ignored).
|
|
* Don't check timestamps here.
|
|
*/
|
|
++no_check_timestamps;
|
|
call_shell(command, SHELL_DOOUT | SHELL_EXPAND | flags);
|
|
--no_check_timestamps;
|
|
|
|
vim_free(command);
|
|
|
|
/*
|
|
* read the names from the file into memory
|
|
*/
|
|
# ifdef VMS
|
|
// created temporary file is not always readable as binary
|
|
fd = mch_fopen((char *)tempname, "r");
|
|
# else
|
|
fd = mch_fopen((char *)tempname, READBIN);
|
|
# endif
|
|
|
|
// Not being able to seek means we can't read the file.
|
|
if (fd == NULL
|
|
|| fseek(fd, 0L, SEEK_END) == -1
|
|
|| (len = ftell(fd)) == -1 // get size of temp file
|
|
|| fseek(fd, 0L, SEEK_SET) == -1) // back to the start
|
|
{
|
|
semsg(_(e_cannot_read_from_str_2), tempname);
|
|
if (fd != NULL)
|
|
fclose(fd);
|
|
goto done;
|
|
}
|
|
|
|
buffer = alloc(len + 1);
|
|
if (buffer != NULL)
|
|
i = (int)fread((char *)buffer, (size_t)1, (size_t)len, fd);
|
|
fclose(fd);
|
|
mch_remove(tempname);
|
|
if (buffer == NULL)
|
|
goto done;
|
|
#ifdef VMS
|
|
len = i; // VMS doesn't give us what we asked for...
|
|
#endif
|
|
if (i != len)
|
|
{
|
|
semsg(_(e_cant_read_file_str), tempname);
|
|
VIM_CLEAR(buffer);
|
|
}
|
|
else if (ret_len == NULL)
|
|
{
|
|
// Change NUL into SOH, otherwise the string is truncated.
|
|
for (i = 0; i < len; ++i)
|
|
if (buffer[i] == NUL)
|
|
buffer[i] = 1;
|
|
|
|
buffer[len] = NUL; // make sure the buffer is terminated
|
|
}
|
|
else
|
|
*ret_len = len;
|
|
|
|
done:
|
|
vim_free(tempname);
|
|
return buffer;
|
|
}
|
|
|
|
# if defined(FEAT_EVAL) || defined(PROTO)
|
|
|
|
static void
|
|
get_cmd_output_as_rettv(
|
|
typval_T *argvars,
|
|
typval_T *rettv,
|
|
int retlist)
|
|
{
|
|
char_u *res = NULL;
|
|
char_u *p;
|
|
char_u *infile = NULL;
|
|
int err = FALSE;
|
|
FILE *fd;
|
|
list_T *list = NULL;
|
|
int flags = SHELL_SILENT;
|
|
|
|
rettv->v_type = VAR_STRING;
|
|
rettv->vval.v_string = NULL;
|
|
if (check_restricted() || check_secure())
|
|
goto errret;
|
|
|
|
if (in_vim9script()
|
|
&& (check_for_string_arg(argvars, 0) == FAIL
|
|
|| check_for_opt_string_or_number_or_list_arg(argvars, 1)
|
|
== FAIL))
|
|
return;
|
|
|
|
if (argvars[1].v_type != VAR_UNKNOWN)
|
|
{
|
|
/*
|
|
* Write the text to a temp file, to be used for input of the shell
|
|
* command.
|
|
*/
|
|
if ((infile = vim_tempname('i', TRUE)) == NULL)
|
|
{
|
|
emsg(_(e_cant_get_temp_file_name));
|
|
goto errret;
|
|
}
|
|
|
|
fd = mch_fopen((char *)infile, WRITEBIN);
|
|
if (fd == NULL)
|
|
{
|
|
semsg(_(e_cant_open_file_str), infile);
|
|
goto errret;
|
|
}
|
|
if (argvars[1].v_type == VAR_NUMBER)
|
|
{
|
|
linenr_T lnum;
|
|
buf_T *buf;
|
|
|
|
buf = buflist_findnr(argvars[1].vval.v_number);
|
|
if (buf == NULL)
|
|
{
|
|
semsg(_(e_buffer_nr_does_not_exist), argvars[1].vval.v_number);
|
|
fclose(fd);
|
|
goto errret;
|
|
}
|
|
|
|
for (lnum = 1; lnum <= buf->b_ml.ml_line_count; lnum++)
|
|
{
|
|
for (p = ml_get_buf(buf, lnum, FALSE); *p != NUL; ++p)
|
|
if (putc(*p == '\n' ? NUL : *p, fd) == EOF)
|
|
{
|
|
err = TRUE;
|
|
break;
|
|
}
|
|
if (putc(NL, fd) == EOF)
|
|
{
|
|
err = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (argvars[1].v_type == VAR_LIST)
|
|
{
|
|
if (write_list(fd, argvars[1].vval.v_list, TRUE) == FAIL)
|
|
err = TRUE;
|
|
}
|
|
else
|
|
{
|
|
size_t len;
|
|
char_u buf[NUMBUFLEN];
|
|
|
|
p = tv_get_string_buf_chk(&argvars[1], buf);
|
|
if (p == NULL)
|
|
{
|
|
fclose(fd);
|
|
goto errret; // type error; errmsg already given
|
|
}
|
|
len = STRLEN(p);
|
|
if (len > 0 && fwrite(p, len, 1, fd) != 1)
|
|
err = TRUE;
|
|
}
|
|
if (fclose(fd) != 0)
|
|
err = TRUE;
|
|
if (err)
|
|
{
|
|
emsg(_(e_error_writing_temp_file));
|
|
goto errret;
|
|
}
|
|
}
|
|
|
|
// Omit SHELL_COOKED when invoked with ":silent". Avoids that the shell
|
|
// echoes typeahead, that messes up the display.
|
|
if (!msg_silent)
|
|
flags += SHELL_COOKED;
|
|
|
|
if (retlist)
|
|
{
|
|
int len;
|
|
listitem_T *li;
|
|
char_u *s = NULL;
|
|
char_u *start;
|
|
char_u *end;
|
|
int i;
|
|
|
|
res = get_cmd_output(tv_get_string(&argvars[0]), infile, flags, &len);
|
|
if (res == NULL)
|
|
goto errret;
|
|
|
|
list = list_alloc();
|
|
if (list == NULL)
|
|
goto errret;
|
|
|
|
for (i = 0; i < len; ++i)
|
|
{
|
|
start = res + i;
|
|
while (i < len && res[i] != NL)
|
|
++i;
|
|
end = res + i;
|
|
|
|
s = alloc(end - start + 1);
|
|
if (s == NULL)
|
|
goto errret;
|
|
|
|
for (p = s; start < end; ++p, ++start)
|
|
*p = *start == NUL ? NL : *start;
|
|
*p = NUL;
|
|
|
|
li = listitem_alloc();
|
|
if (li == NULL)
|
|
{
|
|
vim_free(s);
|
|
goto errret;
|
|
}
|
|
li->li_tv.v_type = VAR_STRING;
|
|
li->li_tv.v_lock = 0;
|
|
li->li_tv.vval.v_string = s;
|
|
list_append(list, li);
|
|
}
|
|
|
|
rettv_list_set(rettv, list);
|
|
list = NULL;
|
|
}
|
|
else
|
|
{
|
|
res = get_cmd_output(tv_get_string(&argvars[0]), infile, flags, NULL);
|
|
#ifdef USE_CRNL
|
|
// translate <CR><NL> into <NL>
|
|
if (res != NULL)
|
|
{
|
|
char_u *s, *d;
|
|
|
|
d = res;
|
|
for (s = res; *s; ++s)
|
|
{
|
|
if (s[0] == CAR && s[1] == NL)
|
|
++s;
|
|
*d++ = *s;
|
|
}
|
|
*d = NUL;
|
|
}
|
|
#endif
|
|
rettv->vval.v_string = res;
|
|
res = NULL;
|
|
}
|
|
|
|
errret:
|
|
if (infile != NULL)
|
|
{
|
|
mch_remove(infile);
|
|
vim_free(infile);
|
|
}
|
|
if (res != NULL)
|
|
vim_free(res);
|
|
if (list != NULL)
|
|
list_free(list);
|
|
}
|
|
|
|
/*
|
|
* "system()" function
|
|
*/
|
|
void
|
|
f_system(typval_T *argvars, typval_T *rettv)
|
|
{
|
|
get_cmd_output_as_rettv(argvars, rettv, FALSE);
|
|
}
|
|
|
|
/*
|
|
* "systemlist()" function
|
|
*/
|
|
void
|
|
f_systemlist(typval_T *argvars, typval_T *rettv)
|
|
{
|
|
get_cmd_output_as_rettv(argvars, rettv, TRUE);
|
|
}
|
|
# endif // FEAT_EVAL
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Return TRUE when need to go to Insert mode because of 'insertmode'.
|
|
* Don't do this when still processing a command or a mapping.
|
|
* Don't do this when inside a ":normal" command.
|
|
*/
|
|
int
|
|
goto_im(void)
|
|
{
|
|
return (p_im && stuff_empty() && typebuf_typed());
|
|
}
|
|
|
|
/*
|
|
* Returns the isolated name of the shell in allocated memory:
|
|
* - Skip beyond any path. E.g., "/usr/bin/csh -f" -> "csh -f".
|
|
* - Remove any argument. E.g., "csh -f" -> "csh".
|
|
* But don't allow a space in the path, so that this works:
|
|
* "/usr/bin/csh --rcfile ~/.cshrc"
|
|
* But don't do that for Windows, it's common to have a space in the path.
|
|
* Returns NULL when out of memory.
|
|
*/
|
|
char_u *
|
|
get_isolated_shell_name(void)
|
|
{
|
|
char_u *p;
|
|
|
|
#ifdef MSWIN
|
|
p = gettail(p_sh);
|
|
p = vim_strnsave(p, skiptowhite(p) - p);
|
|
#else
|
|
p = skiptowhite(p_sh);
|
|
if (*p == NUL)
|
|
{
|
|
// No white space, use the tail.
|
|
p = vim_strsave(gettail(p_sh));
|
|
}
|
|
else
|
|
{
|
|
char_u *p1, *p2;
|
|
|
|
// Find the last path separator before the space.
|
|
p1 = p_sh;
|
|
for (p2 = p_sh; p2 < p; MB_PTR_ADV(p2))
|
|
if (vim_ispathsep(*p2))
|
|
p1 = p2 + 1;
|
|
p = vim_strnsave(p1, p - p1);
|
|
}
|
|
#endif
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Check if the "://" of a URL is at the pointer, return URL_SLASH.
|
|
* Also check for ":\\", which MS Internet Explorer accepts, return
|
|
* URL_BACKSLASH.
|
|
*/
|
|
int
|
|
path_is_url(char_u *p)
|
|
{
|
|
if (STRNCMP(p, "://", (size_t)3) == 0)
|
|
return URL_SLASH;
|
|
else if (STRNCMP(p, ":\\\\", (size_t)3) == 0)
|
|
return URL_BACKSLASH;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check if "fname" starts with "name://" or "name:\\".
|
|
* Return URL_SLASH for "name://", URL_BACKSLASH for "name:\\".
|
|
* Return zero otherwise.
|
|
*/
|
|
int
|
|
path_with_url(char_u *fname)
|
|
{
|
|
char_u *p;
|
|
|
|
// We accept alphabetic characters and a dash in scheme part.
|
|
// RFC 3986 allows for more, but it increases the risk of matching
|
|
// non-URL text.
|
|
|
|
// first character must be alpha
|
|
if (!ASCII_ISALPHA(*fname))
|
|
return 0;
|
|
|
|
// check body: alpha or dash
|
|
for (p = fname + 1; (ASCII_ISALPHA(*p) || (*p == '-')); ++p)
|
|
;
|
|
|
|
// check last char is not a dash
|
|
if (p[-1] == '-')
|
|
return 0;
|
|
|
|
// "://" or ":\\" must follow
|
|
return path_is_url(p);
|
|
}
|
|
|
|
#if defined(FEAT_EVAL) || defined(PROTO)
|
|
/*
|
|
* Return the dictionary of v:event.
|
|
* Save and clear the value in case it already has items.
|
|
*/
|
|
dict_T *
|
|
get_v_event(save_v_event_T *sve)
|
|
{
|
|
dict_T *v_event = get_vim_var_dict(VV_EVENT);
|
|
|
|
if (v_event->dv_hashtab.ht_used > 0)
|
|
{
|
|
// recursive use of v:event, save, make empty and restore later
|
|
sve->sve_did_save = TRUE;
|
|
sve->sve_hashtab = v_event->dv_hashtab;
|
|
hash_init(&v_event->dv_hashtab);
|
|
}
|
|
else
|
|
sve->sve_did_save = FALSE;
|
|
return v_event;
|
|
}
|
|
|
|
void
|
|
restore_v_event(dict_T *v_event, save_v_event_T *sve)
|
|
{
|
|
dict_free_contents(v_event);
|
|
if (sve->sve_did_save)
|
|
v_event->dv_hashtab = sve->sve_hashtab;
|
|
else
|
|
hash_init(&v_event->dv_hashtab);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Fires a ModeChanged autocmd event if appropriate.
|
|
*/
|
|
void
|
|
may_trigger_modechanged(void)
|
|
{
|
|
#ifdef FEAT_EVAL
|
|
dict_T *v_event;
|
|
save_v_event_T save_v_event;
|
|
char_u curr_mode[MODE_MAX_LENGTH];
|
|
char_u pattern_buf[2 * MODE_MAX_LENGTH];
|
|
|
|
// Skip this when got_int is set, the autocommand will not be executed.
|
|
// Better trigger it next time.
|
|
if (!has_modechanged() || got_int)
|
|
return;
|
|
|
|
get_mode(curr_mode);
|
|
if (STRCMP(curr_mode, last_mode) == 0)
|
|
return;
|
|
|
|
v_event = get_v_event(&save_v_event);
|
|
(void)dict_add_string(v_event, "new_mode", curr_mode);
|
|
(void)dict_add_string(v_event, "old_mode", last_mode);
|
|
dict_set_items_ro(v_event);
|
|
|
|
// concatenate modes in format "old_mode:new_mode"
|
|
vim_snprintf((char *)pattern_buf, sizeof(pattern_buf), "%s:%s", last_mode,
|
|
curr_mode);
|
|
|
|
apply_autocmds(EVENT_MODECHANGED, pattern_buf, NULL, FALSE, curbuf);
|
|
STRCPY(last_mode, curr_mode);
|
|
|
|
restore_v_event(v_event, &save_v_event);
|
|
#endif
|
|
}
|
|
|
|
// For overflow detection, add a digit safely to a long value.
|
|
int
|
|
vim_append_digit_long(long *value, int digit)
|
|
{
|
|
long x = *value;
|
|
if (x > ((LONG_MAX - (long)digit) / 10))
|
|
return FAIL;
|
|
*value = x * 10 + (long)digit;
|
|
return OK;
|
|
}
|
|
|
|
// Return something that fits into an int.
|
|
int
|
|
trim_to_int(vimlong_T x)
|
|
{
|
|
return x > INT_MAX ? INT_MAX : x < INT_MIN ? INT_MIN : x;
|
|
}
|
|
|