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| author | Eliseo Martínez <eliseomarmol@gmail.com> | 2014-05-12 02:25:17 +0200 |
|---|---|---|
| committer | Eliseo Martínez <eliseomarmol@gmail.com> | 2014-05-15 20:46:01 +0200 |
| commit | da51dc9cf202772f60bd2da975dbef257bd9237c (patch) | |
| tree | 5c16b93238a153f55634e9323077f30c8133970c /src/misc1.c | |
| parent | ffe61e5ba1721340ca51d56bae3ddaca415fb5bc (diff) | |
| download | rneovim-da51dc9cf202772f60bd2da975dbef257bd9237c.tar.gz rneovim-da51dc9cf202772f60bd2da975dbef257bd9237c.tar.bz2 rneovim-da51dc9cf202772f60bd2da975dbef257bd9237c.zip | |
Introduce nvim namespace: Move files.
Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.
Diffstat (limited to 'src/misc1.c')
| -rw-r--r-- | src/misc1.c | 3547 |
1 files changed, 0 insertions, 3547 deletions
diff --git a/src/misc1.c b/src/misc1.c deleted file mode 100644 index 26b649331a..0000000000 --- a/src/misc1.c +++ /dev/null @@ -1,3547 +0,0 @@ -/* - * VIM - Vi IMproved by Bram Moolenaar - * - * Do ":help uganda" in Vim to read copying and usage conditions. - * Do ":help credits" in Vim to see a list of people who contributed. - * See README.txt for an overview of the Vim source code. - */ - -/* - * misc1.c: functions that didn't seem to fit elsewhere - */ - -#include <string.h> - -#include "vim.h" -#include "version_defs.h" -#include "misc1.h" -#include "charset.h" -#include "diff.h" -#include "edit.h" -#include "eval.h" -#include "ex_cmds.h" -#include "ex_docmd.h" -#include "ex_getln.h" -#include "fileio.h" -#include "fold.h" -#include "getchar.h" -#include "indent.h" -#include "indent_c.h" -#include "main.h" -#include "mark.h" -#include "mbyte.h" -#include "memline.h" -#include "memory.h" -#include "message.h" -#include "misc2.h" -#include "garray.h" -#include "move.h" -#include "option.h" -#include "os_unix.h" -#include "path.h" -#include "quickfix.h" -#include "regexp.h" -#include "screen.h" -#include "search.h" -#include "tag.h" -#include "term.h" -#include "ui.h" -#include "undo.h" -#include "window.h" -#include "os/os.h" -#include "os/shell.h" -static char_u *vim_version_dir(char_u *vimdir); -static char_u *remove_tail(char_u *p, char_u *pend, char_u *name); -static void init_users(void); - -/* All user names (for ~user completion as done by shell). */ -static garray_T ga_users; - -/* - * open_line: Add a new line below or above the current line. - * - * For VREPLACE mode, we only add a new line when we get to the end of the - * file, otherwise we just start replacing the next line. - * - * Caller must take care of undo. Since VREPLACE may affect any number of - * lines however, it may call u_save_cursor() again when starting to change a - * new line. - * "flags": OPENLINE_DELSPACES delete spaces after cursor - * OPENLINE_DO_COM format comments - * OPENLINE_KEEPTRAIL keep trailing spaces - * OPENLINE_MARKFIX adjust mark positions after the line break - * OPENLINE_COM_LIST format comments with list or 2nd line indent - * - * "second_line_indent": indent for after ^^D in Insert mode or if flag - * OPENLINE_COM_LIST - * - * Return TRUE for success, FALSE for failure - */ -int -open_line ( - int dir, /* FORWARD or BACKWARD */ - int flags, - int second_line_indent -) -{ - char_u *saved_line; /* copy of the original line */ - char_u *next_line = NULL; /* copy of the next line */ - char_u *p_extra = NULL; /* what goes to next line */ - int less_cols = 0; /* less columns for mark in new line */ - int less_cols_off = 0; /* columns to skip for mark adjust */ - pos_T old_cursor; /* old cursor position */ - int newcol = 0; /* new cursor column */ - int newindent = 0; /* auto-indent of the new line */ - int n; - int trunc_line = FALSE; /* truncate current line afterwards */ - int retval = FALSE; /* return value, default is FAIL */ - int extra_len = 0; /* length of p_extra string */ - int lead_len; /* length of comment leader */ - char_u *lead_flags; /* position in 'comments' for comment leader */ - char_u *leader = NULL; /* copy of comment leader */ - char_u *allocated = NULL; /* allocated memory */ -#if defined(FEAT_SMARTINDENT) || defined(FEAT_VREPLACE) || defined(FEAT_LISP) \ - || defined(FEAT_CINDENT) || defined(FEAT_COMMENTS) - char_u *p; -#endif - int saved_char = NUL; /* init for GCC */ - pos_T *pos; - int do_si = (!p_paste && curbuf->b_p_si - && !curbuf->b_p_cin - ); - int no_si = FALSE; /* reset did_si afterwards */ - int first_char = NUL; /* init for GCC */ - int vreplace_mode; - int did_append; /* appended a new line */ - int saved_pi = curbuf->b_p_pi; /* copy of preserveindent setting */ - - /* - * make a copy of the current line so we can mess with it - */ - saved_line = vim_strsave(ml_get_curline()); - if (saved_line == NULL) /* out of memory! */ - return FALSE; - - if (State & VREPLACE_FLAG) { - /* - * With VREPLACE we make a copy of the next line, which we will be - * starting to replace. First make the new line empty and let vim play - * with the indenting and comment leader to its heart's content. Then - * we grab what it ended up putting on the new line, put back the - * original line, and call ins_char() to put each new character onto - * the line, replacing what was there before and pushing the right - * stuff onto the replace stack. -- webb. - */ - if (curwin->w_cursor.lnum < orig_line_count) - next_line = vim_strsave(ml_get(curwin->w_cursor.lnum + 1)); - else - next_line = vim_strsave((char_u *)""); - if (next_line == NULL) /* out of memory! */ - goto theend; - - /* - * In VREPLACE mode, a NL replaces the rest of the line, and starts - * replacing the next line, so push all of the characters left on the - * line onto the replace stack. We'll push any other characters that - * might be replaced at the start of the next line (due to autoindent - * etc) a bit later. - */ - replace_push(NUL); /* Call twice because BS over NL expects it */ - replace_push(NUL); - p = saved_line + curwin->w_cursor.col; - while (*p != NUL) { - if (has_mbyte) - p += replace_push_mb(p); - else - replace_push(*p++); - } - saved_line[curwin->w_cursor.col] = NUL; - } - - if ((State & INSERT) - && !(State & VREPLACE_FLAG) - ) { - p_extra = saved_line + curwin->w_cursor.col; - if (do_si) { /* need first char after new line break */ - p = skipwhite(p_extra); - first_char = *p; - } - extra_len = (int)STRLEN(p_extra); - saved_char = *p_extra; - *p_extra = NUL; - } - - u_clearline(); /* cannot do "U" command when adding lines */ - did_si = FALSE; - ai_col = 0; - - /* - * If we just did an auto-indent, then we didn't type anything on - * the prior line, and it should be truncated. Do this even if 'ai' is not - * set because automatically inserting a comment leader also sets did_ai. - */ - if (dir == FORWARD && did_ai) - trunc_line = TRUE; - - /* - * If 'autoindent' and/or 'smartindent' is set, try to figure out what - * indent to use for the new line. - */ - if (curbuf->b_p_ai - || do_si - ) { - /* - * count white space on current line - */ - newindent = get_indent_str(saved_line, (int)curbuf->b_p_ts); - if (newindent == 0 && !(flags & OPENLINE_COM_LIST)) - newindent = second_line_indent; /* for ^^D command in insert mode */ - - /* - * Do smart indenting. - * In insert/replace mode (only when dir == FORWARD) - * we may move some text to the next line. If it starts with '{' - * don't add an indent. Fixes inserting a NL before '{' in line - * "if (condition) {" - */ - if (!trunc_line && do_si && *saved_line != NUL - && (p_extra == NULL || first_char != '{')) { - char_u *ptr; - char_u last_char; - - old_cursor = curwin->w_cursor; - ptr = saved_line; - if (flags & OPENLINE_DO_COM) - lead_len = get_leader_len(ptr, NULL, FALSE, TRUE); - else - lead_len = 0; - if (dir == FORWARD) { - /* - * Skip preprocessor directives, unless they are - * recognised as comments. - */ - if ( - lead_len == 0 && - ptr[0] == '#') { - while (ptr[0] == '#' && curwin->w_cursor.lnum > 1) - ptr = ml_get(--curwin->w_cursor.lnum); - newindent = get_indent(); - } - if (flags & OPENLINE_DO_COM) - lead_len = get_leader_len(ptr, NULL, FALSE, TRUE); - else - lead_len = 0; - if (lead_len > 0) { - /* - * This case gets the following right: - * \* - * * A comment (read '\' as '/'). - * *\ - * #define IN_THE_WAY - * This should line up here; - */ - p = skipwhite(ptr); - if (p[0] == '/' && p[1] == '*') - p++; - if (p[0] == '*') { - for (p++; *p; p++) { - if (p[0] == '/' && p[-1] == '*') { - /* - * End of C comment, indent should line up - * with the line containing the start of - * the comment - */ - curwin->w_cursor.col = (colnr_T)(p - ptr); - if ((pos = findmatch(NULL, NUL)) != NULL) { - curwin->w_cursor.lnum = pos->lnum; - newindent = get_indent(); - } - } - } - } - } else { /* Not a comment line */ - /* Find last non-blank in line */ - p = ptr + STRLEN(ptr) - 1; - while (p > ptr && vim_iswhite(*p)) - --p; - last_char = *p; - - /* - * find the character just before the '{' or ';' - */ - if (last_char == '{' || last_char == ';') { - if (p > ptr) - --p; - while (p > ptr && vim_iswhite(*p)) - --p; - } - /* - * Try to catch lines that are split over multiple - * lines. eg: - * if (condition && - * condition) { - * Should line up here! - * } - */ - if (*p == ')') { - curwin->w_cursor.col = (colnr_T)(p - ptr); - if ((pos = findmatch(NULL, '(')) != NULL) { - curwin->w_cursor.lnum = pos->lnum; - newindent = get_indent(); - ptr = ml_get_curline(); - } - } - /* - * If last character is '{' do indent, without - * checking for "if" and the like. - */ - if (last_char == '{') { - did_si = TRUE; /* do indent */ - no_si = TRUE; /* don't delete it when '{' typed */ - } - /* - * Look for "if" and the like, use 'cinwords'. - * Don't do this if the previous line ended in ';' or - * '}'. - */ - else if (last_char != ';' && last_char != '}' - && cin_is_cinword(ptr)) - did_si = TRUE; - } - } else { /* dir == BACKWARD */ - /* - * Skip preprocessor directives, unless they are - * recognised as comments. - */ - if ( - lead_len == 0 && - ptr[0] == '#') { - int was_backslashed = FALSE; - - while ((ptr[0] == '#' || was_backslashed) && - curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) { - if (*ptr && ptr[STRLEN(ptr) - 1] == '\\') - was_backslashed = TRUE; - else - was_backslashed = FALSE; - ptr = ml_get(++curwin->w_cursor.lnum); - } - if (was_backslashed) - newindent = 0; /* Got to end of file */ - else - newindent = get_indent(); - } - p = skipwhite(ptr); - if (*p == '}') /* if line starts with '}': do indent */ - did_si = TRUE; - else /* can delete indent when '{' typed */ - can_si_back = TRUE; - } - curwin->w_cursor = old_cursor; - } - if (do_si) - can_si = TRUE; - - did_ai = TRUE; - } - - /* - * Find out if the current line starts with a comment leader. - * This may then be inserted in front of the new line. - */ - end_comment_pending = NUL; - if (flags & OPENLINE_DO_COM) - lead_len = get_leader_len(saved_line, &lead_flags, dir == BACKWARD, TRUE); - else - lead_len = 0; - if (lead_len > 0) { - char_u *lead_repl = NULL; /* replaces comment leader */ - int lead_repl_len = 0; /* length of *lead_repl */ - char_u lead_middle[COM_MAX_LEN]; /* middle-comment string */ - char_u lead_end[COM_MAX_LEN]; /* end-comment string */ - char_u *comment_end = NULL; /* where lead_end has been found */ - int extra_space = FALSE; /* append extra space */ - int current_flag; - int require_blank = FALSE; /* requires blank after middle */ - char_u *p2; - - /* - * If the comment leader has the start, middle or end flag, it may not - * be used or may be replaced with the middle leader. - */ - for (p = lead_flags; *p && *p != ':'; ++p) { - if (*p == COM_BLANK) { - require_blank = TRUE; - continue; - } - if (*p == COM_START || *p == COM_MIDDLE) { - current_flag = *p; - if (*p == COM_START) { - /* - * Doing "O" on a start of comment does not insert leader. - */ - if (dir == BACKWARD) { - lead_len = 0; - break; - } - - /* find start of middle part */ - (void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ","); - require_blank = FALSE; - } - - /* - * Isolate the strings of the middle and end leader. - */ - while (*p && p[-1] != ':') { /* find end of middle flags */ - if (*p == COM_BLANK) - require_blank = TRUE; - ++p; - } - (void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ","); - - while (*p && p[-1] != ':') { /* find end of end flags */ - /* Check whether we allow automatic ending of comments */ - if (*p == COM_AUTO_END) - end_comment_pending = -1; /* means we want to set it */ - ++p; - } - n = copy_option_part(&p, lead_end, COM_MAX_LEN, ","); - - if (end_comment_pending == -1) /* we can set it now */ - end_comment_pending = lead_end[n - 1]; - - /* - * If the end of the comment is in the same line, don't use - * the comment leader. - */ - if (dir == FORWARD) { - for (p = saved_line + lead_len; *p; ++p) - if (STRNCMP(p, lead_end, n) == 0) { - comment_end = p; - lead_len = 0; - break; - } - } - - /* - * Doing "o" on a start of comment inserts the middle leader. - */ - if (lead_len > 0) { - if (current_flag == COM_START) { - lead_repl = lead_middle; - lead_repl_len = (int)STRLEN(lead_middle); - } - - /* - * If we have hit RETURN immediately after the start - * comment leader, then put a space after the middle - * comment leader on the next line. - */ - if (!vim_iswhite(saved_line[lead_len - 1]) - && ((p_extra != NULL - && (int)curwin->w_cursor.col == lead_len) - || (p_extra == NULL - && saved_line[lead_len] == NUL) - || require_blank)) - extra_space = TRUE; - } - break; - } - if (*p == COM_END) { - /* - * Doing "o" on the end of a comment does not insert leader. - * Remember where the end is, might want to use it to find the - * start (for C-comments). - */ - if (dir == FORWARD) { - comment_end = skipwhite(saved_line); - lead_len = 0; - break; - } - - /* - * Doing "O" on the end of a comment inserts the middle leader. - * Find the string for the middle leader, searching backwards. - */ - while (p > curbuf->b_p_com && *p != ',') - --p; - for (lead_repl = p; lead_repl > curbuf->b_p_com - && lead_repl[-1] != ':'; --lead_repl) - ; - lead_repl_len = (int)(p - lead_repl); - - /* We can probably always add an extra space when doing "O" on - * the comment-end */ - extra_space = TRUE; - - /* Check whether we allow automatic ending of comments */ - for (p2 = p; *p2 && *p2 != ':'; p2++) { - if (*p2 == COM_AUTO_END) - end_comment_pending = -1; /* means we want to set it */ - } - if (end_comment_pending == -1) { - /* Find last character in end-comment string */ - while (*p2 && *p2 != ',') - p2++; - end_comment_pending = p2[-1]; - } - break; - } - if (*p == COM_FIRST) { - /* - * Comment leader for first line only: Don't repeat leader - * when using "O", blank out leader when using "o". - */ - if (dir == BACKWARD) - lead_len = 0; - else { - lead_repl = (char_u *)""; - lead_repl_len = 0; - } - break; - } - } - if (lead_len) { - /* allocate buffer (may concatenate p_extra later) */ - leader = alloc(lead_len + lead_repl_len + extra_space + extra_len - + (second_line_indent > 0 ? second_line_indent : 0) + 1); - allocated = leader; /* remember to free it later */ - - vim_strncpy(leader, saved_line, lead_len); - - /* - * Replace leader with lead_repl, right or left adjusted - */ - if (lead_repl != NULL) { - int c = 0; - int off = 0; - - for (p = lead_flags; *p != NUL && *p != ':'; ) { - if (*p == COM_RIGHT || *p == COM_LEFT) - c = *p++; - else if (VIM_ISDIGIT(*p) || *p == '-') - off = getdigits(&p); - else - ++p; - } - if (c == COM_RIGHT) { /* right adjusted leader */ - /* find last non-white in the leader to line up with */ - for (p = leader + lead_len - 1; p > leader - && vim_iswhite(*p); --p) - ; - ++p; - - /* Compute the length of the replaced characters in - * screen characters, not bytes. */ - { - int repl_size = vim_strnsize(lead_repl, - lead_repl_len); - int old_size = 0; - char_u *endp = p; - int l; - - while (old_size < repl_size && p > leader) { - mb_ptr_back(leader, p); - old_size += ptr2cells(p); - } - l = lead_repl_len - (int)(endp - p); - if (l != 0) - memmove(endp + l, endp, - (size_t)((leader + lead_len) - endp)); - lead_len += l; - } - memmove(p, lead_repl, (size_t)lead_repl_len); - if (p + lead_repl_len > leader + lead_len) - p[lead_repl_len] = NUL; - - /* blank-out any other chars from the old leader. */ - while (--p >= leader) { - int l = mb_head_off(leader, p); - - if (l > 1) { - p -= l; - if (ptr2cells(p) > 1) { - p[1] = ' '; - --l; - } - memmove(p + 1, p + l + 1, - (size_t)((leader + lead_len) - (p + l + 1))); - lead_len -= l; - *p = ' '; - } else if (!vim_iswhite(*p)) - *p = ' '; - } - } else { /* left adjusted leader */ - p = skipwhite(leader); - /* Compute the length of the replaced characters in - * screen characters, not bytes. Move the part that is - * not to be overwritten. */ - { - int repl_size = vim_strnsize(lead_repl, - lead_repl_len); - int i; - int l; - - for (i = 0; p[i] != NUL && i < lead_len; i += l) { - l = (*mb_ptr2len)(p + i); - if (vim_strnsize(p, i + l) > repl_size) - break; - } - if (i != lead_repl_len) { - memmove(p + lead_repl_len, p + i, - (size_t)(lead_len - i - (p - leader))); - lead_len += lead_repl_len - i; - } - } - memmove(p, lead_repl, (size_t)lead_repl_len); - - /* Replace any remaining non-white chars in the old - * leader by spaces. Keep Tabs, the indent must - * remain the same. */ - for (p += lead_repl_len; p < leader + lead_len; ++p) - if (!vim_iswhite(*p)) { - /* Don't put a space before a TAB. */ - if (p + 1 < leader + lead_len && p[1] == TAB) { - --lead_len; - memmove(p, p + 1, - (leader + lead_len) - p); - } else { - int l = (*mb_ptr2len)(p); - - if (l > 1) { - if (ptr2cells(p) > 1) { - /* Replace a double-wide char with - * two spaces */ - --l; - *p++ = ' '; - } - memmove(p + 1, p + l, - (leader + lead_len) - p); - lead_len -= l - 1; - } - *p = ' '; - } - } - *p = NUL; - } - - /* Recompute the indent, it may have changed. */ - if (curbuf->b_p_ai - || do_si - ) - newindent = get_indent_str(leader, (int)curbuf->b_p_ts); - - /* Add the indent offset */ - if (newindent + off < 0) { - off = -newindent; - newindent = 0; - } else - newindent += off; - - /* Correct trailing spaces for the shift, so that - * alignment remains equal. */ - while (off > 0 && lead_len > 0 - && leader[lead_len - 1] == ' ') { - /* Don't do it when there is a tab before the space */ - if (vim_strchr(skipwhite(leader), '\t') != NULL) - break; - --lead_len; - --off; - } - - /* If the leader ends in white space, don't add an - * extra space */ - if (lead_len > 0 && vim_iswhite(leader[lead_len - 1])) - extra_space = FALSE; - leader[lead_len] = NUL; - } - - if (extra_space) { - leader[lead_len++] = ' '; - leader[lead_len] = NUL; - } - - newcol = lead_len; - - /* - * if a new indent will be set below, remove the indent that - * is in the comment leader - */ - if (newindent - || did_si - ) { - while (lead_len && vim_iswhite(*leader)) { - --lead_len; - --newcol; - ++leader; - } - } - - did_si = can_si = FALSE; - } else if (comment_end != NULL) { - /* - * We have finished a comment, so we don't use the leader. - * If this was a C-comment and 'ai' or 'si' is set do a normal - * indent to align with the line containing the start of the - * comment. - */ - if (comment_end[0] == '*' && comment_end[1] == '/' && - (curbuf->b_p_ai - || do_si - )) { - old_cursor = curwin->w_cursor; - curwin->w_cursor.col = (colnr_T)(comment_end - saved_line); - if ((pos = findmatch(NULL, NUL)) != NULL) { - curwin->w_cursor.lnum = pos->lnum; - newindent = get_indent(); - } - curwin->w_cursor = old_cursor; - } - } - } - - /* (State == INSERT || State == REPLACE), only when dir == FORWARD */ - if (p_extra != NULL) { - *p_extra = saved_char; /* restore char that NUL replaced */ - - /* - * When 'ai' set or "flags" has OPENLINE_DELSPACES, skip to the first - * non-blank. - * - * When in REPLACE mode, put the deleted blanks on the replace stack, - * preceded by a NUL, so they can be put back when a BS is entered. - */ - if (REPLACE_NORMAL(State)) - replace_push(NUL); /* end of extra blanks */ - if (curbuf->b_p_ai || (flags & OPENLINE_DELSPACES)) { - while ((*p_extra == ' ' || *p_extra == '\t') - && (!enc_utf8 - || !utf_iscomposing(utf_ptr2char(p_extra + 1))) - ) { - if (REPLACE_NORMAL(State)) - replace_push(*p_extra); - ++p_extra; - ++less_cols_off; - } - } - if (*p_extra != NUL) - did_ai = FALSE; /* append some text, don't truncate now */ - - /* columns for marks adjusted for removed columns */ - less_cols = (int)(p_extra - saved_line); - } - - if (p_extra == NULL) - p_extra = (char_u *)""; /* append empty line */ - - /* concatenate leader and p_extra, if there is a leader */ - if (lead_len) { - if (flags & OPENLINE_COM_LIST && second_line_indent > 0) { - int i; - int padding = second_line_indent - - (newindent + (int)STRLEN(leader)); - - /* Here whitespace is inserted after the comment char. - * Below, set_indent(newindent, SIN_INSERT) will insert the - * whitespace needed before the comment char. */ - for (i = 0; i < padding; i++) { - STRCAT(leader, " "); - less_cols--; - newcol++; - } - } - STRCAT(leader, p_extra); - p_extra = leader; - did_ai = TRUE; /* So truncating blanks works with comments */ - less_cols -= lead_len; - } else - end_comment_pending = NUL; /* turns out there was no leader */ - - old_cursor = curwin->w_cursor; - if (dir == BACKWARD) - --curwin->w_cursor.lnum; - if (!(State & VREPLACE_FLAG) || old_cursor.lnum >= orig_line_count) { - if (ml_append(curwin->w_cursor.lnum, p_extra, (colnr_T)0, FALSE) - == FAIL) - goto theend; - /* Postpone calling changed_lines(), because it would mess up folding - * with markers. */ - mark_adjust(curwin->w_cursor.lnum + 1, (linenr_T)MAXLNUM, 1L, 0L); - did_append = TRUE; - } else { - /* - * In VREPLACE mode we are starting to replace the next line. - */ - curwin->w_cursor.lnum++; - if (curwin->w_cursor.lnum >= Insstart.lnum + vr_lines_changed) { - /* In case we NL to a new line, BS to the previous one, and NL - * again, we don't want to save the new line for undo twice. - */ - (void)u_save_cursor(); /* errors are ignored! */ - vr_lines_changed++; - } - ml_replace(curwin->w_cursor.lnum, p_extra, TRUE); - changed_bytes(curwin->w_cursor.lnum, 0); - curwin->w_cursor.lnum--; - did_append = FALSE; - } - - if (newindent - || did_si - ) { - ++curwin->w_cursor.lnum; - if (did_si) { - int sw = (int)get_sw_value(curbuf); - - if (p_sr) - newindent -= newindent % sw; - newindent += sw; - } - /* Copy the indent */ - if (curbuf->b_p_ci) { - (void)copy_indent(newindent, saved_line); - - /* - * Set the 'preserveindent' option so that any further screwing - * with the line doesn't entirely destroy our efforts to preserve - * it. It gets restored at the function end. - */ - curbuf->b_p_pi = TRUE; - } else - (void)set_indent(newindent, SIN_INSERT); - less_cols -= curwin->w_cursor.col; - - ai_col = curwin->w_cursor.col; - - /* - * In REPLACE mode, for each character in the new indent, there must - * be a NUL on the replace stack, for when it is deleted with BS - */ - if (REPLACE_NORMAL(State)) - for (n = 0; n < (int)curwin->w_cursor.col; ++n) - replace_push(NUL); - newcol += curwin->w_cursor.col; - if (no_si) - did_si = FALSE; - } - - /* - * In REPLACE mode, for each character in the extra leader, there must be - * a NUL on the replace stack, for when it is deleted with BS. - */ - if (REPLACE_NORMAL(State)) - while (lead_len-- > 0) - replace_push(NUL); - - curwin->w_cursor = old_cursor; - - if (dir == FORWARD) { - if (trunc_line || (State & INSERT)) { - /* truncate current line at cursor */ - saved_line[curwin->w_cursor.col] = NUL; - /* Remove trailing white space, unless OPENLINE_KEEPTRAIL used. */ - if (trunc_line && !(flags & OPENLINE_KEEPTRAIL)) - truncate_spaces(saved_line); - ml_replace(curwin->w_cursor.lnum, saved_line, FALSE); - saved_line = NULL; - if (did_append) { - changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col, - curwin->w_cursor.lnum + 1, 1L); - did_append = FALSE; - - /* Move marks after the line break to the new line. */ - if (flags & OPENLINE_MARKFIX) - mark_col_adjust(curwin->w_cursor.lnum, - curwin->w_cursor.col + less_cols_off, - 1L, (long)-less_cols); - } else - changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col); - } - - /* - * Put the cursor on the new line. Careful: the scrollup() above may - * have moved w_cursor, we must use old_cursor. - */ - curwin->w_cursor.lnum = old_cursor.lnum + 1; - } - if (did_append) - changed_lines(curwin->w_cursor.lnum, 0, curwin->w_cursor.lnum, 1L); - - curwin->w_cursor.col = newcol; - curwin->w_cursor.coladd = 0; - - /* - * In VREPLACE mode, we are handling the replace stack ourselves, so stop - * fixthisline() from doing it (via change_indent()) by telling it we're in - * normal INSERT mode. - */ - if (State & VREPLACE_FLAG) { - vreplace_mode = State; /* So we know to put things right later */ - State = INSERT; - } else - vreplace_mode = 0; - /* - * May do lisp indenting. - */ - if (!p_paste - && leader == NULL - && curbuf->b_p_lisp - && curbuf->b_p_ai) { - fixthisline(get_lisp_indent); - p = ml_get_curline(); - ai_col = (colnr_T)(skipwhite(p) - p); - } - /* - * May do indenting after opening a new line. - */ - if (!p_paste - && (curbuf->b_p_cin - || *curbuf->b_p_inde != NUL - ) - && in_cinkeys(dir == FORWARD - ? KEY_OPEN_FORW - : KEY_OPEN_BACK, ' ', linewhite(curwin->w_cursor.lnum))) { - do_c_expr_indent(); - p = ml_get_curline(); - ai_col = (colnr_T)(skipwhite(p) - p); - } - if (vreplace_mode != 0) - State = vreplace_mode; - - /* - * Finally, VREPLACE gets the stuff on the new line, then puts back the - * original line, and inserts the new stuff char by char, pushing old stuff - * onto the replace stack (via ins_char()). - */ - if (State & VREPLACE_FLAG) { - /* Put new line in p_extra */ - p_extra = vim_strsave(ml_get_curline()); - if (p_extra == NULL) - goto theend; - - /* Put back original line */ - ml_replace(curwin->w_cursor.lnum, next_line, FALSE); - - /* Insert new stuff into line again */ - curwin->w_cursor.col = 0; - curwin->w_cursor.coladd = 0; - ins_bytes(p_extra); /* will call changed_bytes() */ - free(p_extra); - next_line = NULL; - } - - retval = TRUE; /* success! */ -theend: - curbuf->b_p_pi = saved_pi; - free(saved_line); - free(next_line); - free(allocated); - return retval; -} - -/* - * get_leader_len() returns the length in bytes of the prefix of the given - * string which introduces a comment. If this string is not a comment then - * 0 is returned. - * When "flags" is not NULL, it is set to point to the flags of the recognized - * comment leader. - * "backward" must be true for the "O" command. - * If "include_space" is set, include trailing whitespace while calculating the - * length. - */ -int get_leader_len(char_u *line, char_u **flags, int backward, int include_space) -{ - int i, j; - int result; - int got_com = FALSE; - int found_one; - char_u part_buf[COM_MAX_LEN]; /* buffer for one option part */ - char_u *string; /* pointer to comment string */ - char_u *list; - int middle_match_len = 0; - char_u *prev_list; - char_u *saved_flags = NULL; - - result = i = 0; - while (vim_iswhite(line[i])) /* leading white space is ignored */ - ++i; - - /* - * Repeat to match several nested comment strings. - */ - while (line[i] != NUL) { - /* - * scan through the 'comments' option for a match - */ - found_one = FALSE; - for (list = curbuf->b_p_com; *list; ) { - /* Get one option part into part_buf[]. Advance "list" to next - * one. Put "string" at start of string. */ - if (!got_com && flags != NULL) - *flags = list; /* remember where flags started */ - prev_list = list; - (void)copy_option_part(&list, part_buf, COM_MAX_LEN, ","); - string = vim_strchr(part_buf, ':'); - if (string == NULL) /* missing ':', ignore this part */ - continue; - *string++ = NUL; /* isolate flags from string */ - - /* If we found a middle match previously, use that match when this - * is not a middle or end. */ - if (middle_match_len != 0 - && vim_strchr(part_buf, COM_MIDDLE) == NULL - && vim_strchr(part_buf, COM_END) == NULL) - break; - - /* When we already found a nested comment, only accept further - * nested comments. */ - if (got_com && vim_strchr(part_buf, COM_NEST) == NULL) - continue; - - /* When 'O' flag present and using "O" command skip this one. */ - if (backward && vim_strchr(part_buf, COM_NOBACK) != NULL) - continue; - - /* Line contents and string must match. - * When string starts with white space, must have some white space - * (but the amount does not need to match, there might be a mix of - * TABs and spaces). */ - if (vim_iswhite(string[0])) { - if (i == 0 || !vim_iswhite(line[i - 1])) - continue; /* missing white space */ - while (vim_iswhite(string[0])) - ++string; - } - for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j) - ; - if (string[j] != NUL) - continue; /* string doesn't match */ - - /* When 'b' flag used, there must be white space or an - * end-of-line after the string in the line. */ - if (vim_strchr(part_buf, COM_BLANK) != NULL - && !vim_iswhite(line[i + j]) && line[i + j] != NUL) - continue; - - /* We have found a match, stop searching unless this is a middle - * comment. The middle comment can be a substring of the end - * comment in which case it's better to return the length of the - * end comment and its flags. Thus we keep searching with middle - * and end matches and use an end match if it matches better. */ - if (vim_strchr(part_buf, COM_MIDDLE) != NULL) { - if (middle_match_len == 0) { - middle_match_len = j; - saved_flags = prev_list; - } - continue; - } - if (middle_match_len != 0 && j > middle_match_len) - /* Use this match instead of the middle match, since it's a - * longer thus better match. */ - middle_match_len = 0; - - if (middle_match_len == 0) - i += j; - found_one = TRUE; - break; - } - - if (middle_match_len != 0) { - /* Use the previously found middle match after failing to find a - * match with an end. */ - if (!got_com && flags != NULL) - *flags = saved_flags; - i += middle_match_len; - found_one = TRUE; - } - - /* No match found, stop scanning. */ - if (!found_one) - break; - - result = i; - - /* Include any trailing white space. */ - while (vim_iswhite(line[i])) - ++i; - - if (include_space) - result = i; - - /* If this comment doesn't nest, stop here. */ - got_com = TRUE; - if (vim_strchr(part_buf, COM_NEST) == NULL) - break; - } - return result; -} - -/* - * Return the offset at which the last comment in line starts. If there is no - * comment in the whole line, -1 is returned. - * - * When "flags" is not null, it is set to point to the flags describing the - * recognized comment leader. - */ -int get_last_leader_offset(char_u *line, char_u **flags) -{ - int result = -1; - int i, j; - int lower_check_bound = 0; - char_u *string; - char_u *com_leader; - char_u *com_flags; - char_u *list; - int found_one; - char_u part_buf[COM_MAX_LEN]; /* buffer for one option part */ - - /* - * Repeat to match several nested comment strings. - */ - i = (int)STRLEN(line); - while (--i >= lower_check_bound) { - /* - * scan through the 'comments' option for a match - */ - found_one = FALSE; - for (list = curbuf->b_p_com; *list; ) { - char_u *flags_save = list; - - /* - * Get one option part into part_buf[]. Advance list to next one. - * put string at start of string. - */ - (void)copy_option_part(&list, part_buf, COM_MAX_LEN, ","); - string = vim_strchr(part_buf, ':'); - if (string == NULL) { /* If everything is fine, this cannot actually - * happen. */ - continue; - } - *string++ = NUL; /* Isolate flags from string. */ - com_leader = string; - - /* - * Line contents and string must match. - * When string starts with white space, must have some white space - * (but the amount does not need to match, there might be a mix of - * TABs and spaces). - */ - if (vim_iswhite(string[0])) { - if (i == 0 || !vim_iswhite(line[i - 1])) - continue; - while (vim_iswhite(string[0])) - ++string; - } - for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j) - /* do nothing */; - if (string[j] != NUL) - continue; - - /* - * When 'b' flag used, there must be white space or an - * end-of-line after the string in the line. - */ - if (vim_strchr(part_buf, COM_BLANK) != NULL - && !vim_iswhite(line[i + j]) && line[i + j] != NUL) { - continue; - } - - /* - * We have found a match, stop searching. - */ - found_one = TRUE; - - if (flags) - *flags = flags_save; - com_flags = flags_save; - - break; - } - - if (found_one) { - char_u part_buf2[COM_MAX_LEN]; /* buffer for one option part */ - int len1, len2, off; - - result = i; - /* - * If this comment nests, continue searching. - */ - if (vim_strchr(part_buf, COM_NEST) != NULL) - continue; - - lower_check_bound = i; - - /* Let's verify whether the comment leader found is a substring - * of other comment leaders. If it is, let's adjust the - * lower_check_bound so that we make sure that we have determined - * the comment leader correctly. - */ - - while (vim_iswhite(*com_leader)) - ++com_leader; - len1 = (int)STRLEN(com_leader); - - for (list = curbuf->b_p_com; *list; ) { - char_u *flags_save = list; - - (void)copy_option_part(&list, part_buf2, COM_MAX_LEN, ","); - if (flags_save == com_flags) - continue; - string = vim_strchr(part_buf2, ':'); - ++string; - while (vim_iswhite(*string)) - ++string; - len2 = (int)STRLEN(string); - if (len2 == 0) - continue; - - /* Now we have to verify whether string ends with a substring - * beginning the com_leader. */ - for (off = (len2 > i ? i : len2); off > 0 && off + len1 > len2; ) { - --off; - if (!STRNCMP(string + off, com_leader, len2 - off)) { - if (i - off < lower_check_bound) - lower_check_bound = i - off; - } - } - } - } - } - return result; -} - -/* - * Return the number of window lines occupied by buffer line "lnum". - */ -int plines(linenr_T lnum) -{ - return plines_win(curwin, lnum, TRUE); -} - -int -plines_win ( - win_T *wp, - linenr_T lnum, - int winheight /* when TRUE limit to window height */ -) -{ - /* Check for filler lines above this buffer line. When folded the result - * is one line anyway. */ - return plines_win_nofill(wp, lnum, winheight) + diff_check_fill(wp, lnum); -} - -int plines_nofill(linenr_T lnum) -{ - return plines_win_nofill(curwin, lnum, TRUE); -} - -int -plines_win_nofill ( - win_T *wp, - linenr_T lnum, - int winheight /* when TRUE limit to window height */ -) -{ - int lines; - - if (!wp->w_p_wrap) - return 1; - - if (wp->w_width == 0) - return 1; - - /* A folded lines is handled just like an empty line. */ - /* NOTE: Caller must handle lines that are MAYBE folded. */ - if (lineFolded(wp, lnum) == TRUE) - return 1; - - lines = plines_win_nofold(wp, lnum); - if (winheight > 0 && lines > wp->w_height) - return (int)wp->w_height; - return lines; -} - -/* - * Return number of window lines physical line "lnum" will occupy in window - * "wp". Does not care about folding, 'wrap' or 'diff'. - */ -int plines_win_nofold(win_T *wp, linenr_T lnum) -{ - char_u *s; - long col; - int width; - - s = ml_get_buf(wp->w_buffer, lnum, FALSE); - if (*s == NUL) /* empty line */ - return 1; - col = win_linetabsize(wp, s, (colnr_T)MAXCOL); - - /* - * If list mode is on, then the '$' at the end of the line may take up one - * extra column. - */ - if (wp->w_p_list && lcs_eol != NUL) - col += 1; - - /* - * Add column offset for 'number', 'relativenumber' and 'foldcolumn'. - */ - width = W_WIDTH(wp) - win_col_off(wp); - if (width <= 0) - return 32000; - if (col <= width) - return 1; - col -= width; - width += win_col_off2(wp); - return (col + (width - 1)) / width + 1; -} - -/* - * Like plines_win(), but only reports the number of physical screen lines - * used from the start of the line to the given column number. - */ -int plines_win_col(win_T *wp, linenr_T lnum, long column) -{ - long col; - char_u *s; - int lines = 0; - int width; - - /* Check for filler lines above this buffer line. When folded the result - * is one line anyway. */ - lines = diff_check_fill(wp, lnum); - - if (!wp->w_p_wrap) - return lines + 1; - - if (wp->w_width == 0) - return lines + 1; - - s = ml_get_buf(wp->w_buffer, lnum, FALSE); - - col = 0; - while (*s != NUL && --column >= 0) { - col += win_lbr_chartabsize(wp, s, (colnr_T)col, NULL); - mb_ptr_adv(s); - } - - /* - * If *s is a TAB, and the TAB is not displayed as ^I, and we're not in - * INSERT mode, then col must be adjusted so that it represents the last - * screen position of the TAB. This only fixes an error when the TAB wraps - * from one screen line to the next (when 'columns' is not a multiple of - * 'ts') -- webb. - */ - if (*s == TAB && (State & NORMAL) && (!wp->w_p_list || lcs_tab1)) - col += win_lbr_chartabsize(wp, s, (colnr_T)col, NULL) - 1; - - /* - * Add column offset for 'number', 'relativenumber', 'foldcolumn', etc. - */ - width = W_WIDTH(wp) - win_col_off(wp); - if (width <= 0) - return 9999; - - lines += 1; - if (col > width) - lines += (col - width) / (width + win_col_off2(wp)) + 1; - return lines; -} - -int plines_m_win(win_T *wp, linenr_T first, linenr_T last) -{ - int count = 0; - - while (first <= last) { - int x; - - /* Check if there are any really folded lines, but also included lines - * that are maybe folded. */ - x = foldedCount(wp, first, NULL); - if (x > 0) { - ++count; /* count 1 for "+-- folded" line */ - first += x; - } else { - if (first == wp->w_topline) - count += plines_win_nofill(wp, first, TRUE) + wp->w_topfill; - else - count += plines_win(wp, first, TRUE); - ++first; - } - } - return count; -} - -/* - * Insert string "p" at the cursor position. Stops at a NUL byte. - * Handles Replace mode and multi-byte characters. - */ -void ins_bytes(char_u *p) -{ - ins_bytes_len(p, (int)STRLEN(p)); -} - -#if defined(FEAT_VREPLACE) || defined(FEAT_INS_EXPAND) \ - || defined(FEAT_COMMENTS) || defined(FEAT_MBYTE) || defined(PROTO) -/* - * Insert string "p" with length "len" at the cursor position. - * Handles Replace mode and multi-byte characters. - */ -void ins_bytes_len(char_u *p, int len) -{ - int i; - int n; - - if (has_mbyte) - for (i = 0; i < len; i += n) { - if (enc_utf8) - /* avoid reading past p[len] */ - n = utfc_ptr2len_len(p + i, len - i); - else - n = (*mb_ptr2len)(p + i); - ins_char_bytes(p + i, n); - } - else - for (i = 0; i < len; ++i) - ins_char(p[i]); -} -#endif - -/* - * Insert or replace a single character at the cursor position. - * When in REPLACE or VREPLACE mode, replace any existing character. - * Caller must have prepared for undo. - * For multi-byte characters we get the whole character, the caller must - * convert bytes to a character. - */ -void ins_char(int c) -{ - char_u buf[MB_MAXBYTES + 1]; - int n; - - n = (*mb_char2bytes)(c, buf); - - /* When "c" is 0x100, 0x200, etc. we don't want to insert a NUL byte. - * Happens for CTRL-Vu9900. */ - if (buf[0] == 0) - buf[0] = '\n'; - - ins_char_bytes(buf, n); -} - -void ins_char_bytes(char_u *buf, int charlen) -{ - int c = buf[0]; - int newlen; /* nr of bytes inserted */ - int oldlen; /* nr of bytes deleted (0 when not replacing) */ - char_u *p; - char_u *newp; - char_u *oldp; - int linelen; /* length of old line including NUL */ - colnr_T col; - linenr_T lnum = curwin->w_cursor.lnum; - int i; - - /* Break tabs if needed. */ - if (virtual_active() && curwin->w_cursor.coladd > 0) - coladvance_force(getviscol()); - - col = curwin->w_cursor.col; - oldp = ml_get(lnum); - linelen = (int)STRLEN(oldp) + 1; - - /* The lengths default to the values for when not replacing. */ - oldlen = 0; - newlen = charlen; - - if (State & REPLACE_FLAG) { - if (State & VREPLACE_FLAG) { - colnr_T new_vcol = 0; /* init for GCC */ - colnr_T vcol; - int old_list; - - /* - * Disable 'list' temporarily, unless 'cpo' contains the 'L' flag. - * Returns the old value of list, so when finished, - * curwin->w_p_list should be set back to this. - */ - old_list = curwin->w_p_list; - if (old_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL) - curwin->w_p_list = FALSE; - - /* - * In virtual replace mode each character may replace one or more - * characters (zero if it's a TAB). Count the number of bytes to - * be deleted to make room for the new character, counting screen - * cells. May result in adding spaces to fill a gap. - */ - getvcol(curwin, &curwin->w_cursor, NULL, &vcol, NULL); - new_vcol = vcol + chartabsize(buf, vcol); - while (oldp[col + oldlen] != NUL && vcol < new_vcol) { - vcol += chartabsize(oldp + col + oldlen, vcol); - /* Don't need to remove a TAB that takes us to the right - * position. */ - if (vcol > new_vcol && oldp[col + oldlen] == TAB) - break; - oldlen += (*mb_ptr2len)(oldp + col + oldlen); - /* Deleted a bit too much, insert spaces. */ - if (vcol > new_vcol) - newlen += vcol - new_vcol; - } - curwin->w_p_list = old_list; - } else if (oldp[col] != NUL) { - /* normal replace */ - oldlen = (*mb_ptr2len)(oldp + col); - } - - - /* Push the replaced bytes onto the replace stack, so that they can be - * put back when BS is used. The bytes of a multi-byte character are - * done the other way around, so that the first byte is popped off - * first (it tells the byte length of the character). */ - replace_push(NUL); - for (i = 0; i < oldlen; ++i) { - if (has_mbyte) - i += replace_push_mb(oldp + col + i) - 1; - else - replace_push(oldp[col + i]); - } - } - - newp = (char_u *) xmalloc((size_t)(linelen + newlen - oldlen)); - - /* Copy bytes before the cursor. */ - if (col > 0) - memmove(newp, oldp, (size_t)col); - - /* Copy bytes after the changed character(s). */ - p = newp + col; - memmove(p + newlen, oldp + col + oldlen, - (size_t)(linelen - col - oldlen)); - - /* Insert or overwrite the new character. */ - memmove(p, buf, charlen); - i = charlen; - - /* Fill with spaces when necessary. */ - while (i < newlen) - p[i++] = ' '; - - /* Replace the line in the buffer. */ - ml_replace(lnum, newp, FALSE); - - /* mark the buffer as changed and prepare for displaying */ - changed_bytes(lnum, col); - - /* - * If we're in Insert or Replace mode and 'showmatch' is set, then briefly - * show the match for right parens and braces. - */ - if (p_sm && (State & INSERT) - && msg_silent == 0 - && !ins_compl_active() - ) { - if (has_mbyte) - showmatch(mb_ptr2char(buf)); - else - showmatch(c); - } - - if (!p_ri || (State & REPLACE_FLAG)) { - /* Normal insert: move cursor right */ - curwin->w_cursor.col += charlen; - } - /* - * TODO: should try to update w_row here, to avoid recomputing it later. - */ -} - -/* - * Insert a string at the cursor position. - * Note: Does NOT handle Replace mode. - * Caller must have prepared for undo. - */ -void ins_str(char_u *s) -{ - char_u *oldp, *newp; - int newlen = (int)STRLEN(s); - int oldlen; - colnr_T col; - linenr_T lnum = curwin->w_cursor.lnum; - - if (virtual_active() && curwin->w_cursor.coladd > 0) - coladvance_force(getviscol()); - - col = curwin->w_cursor.col; - oldp = ml_get(lnum); - oldlen = (int)STRLEN(oldp); - - newp = (char_u *) xmalloc((size_t)(oldlen + newlen + 1)); - if (col > 0) - memmove(newp, oldp, (size_t)col); - memmove(newp + col, s, (size_t)newlen); - memmove(newp + col + newlen, oldp + col, (size_t)(oldlen - col + 1)); - ml_replace(lnum, newp, FALSE); - changed_bytes(lnum, col); - curwin->w_cursor.col += newlen; -} - -/* - * Delete one character under the cursor. - * If "fixpos" is TRUE, don't leave the cursor on the NUL after the line. - * Caller must have prepared for undo. - * - * return FAIL for failure, OK otherwise - */ -int del_char(int fixpos) -{ - if (has_mbyte) { - /* Make sure the cursor is at the start of a character. */ - mb_adjust_cursor(); - if (*ml_get_cursor() == NUL) - return FAIL; - return del_chars(1L, fixpos); - } - return del_bytes(1L, fixpos, TRUE); -} - -/* - * Like del_bytes(), but delete characters instead of bytes. - */ -int del_chars(long count, int fixpos) -{ - long bytes = 0; - long i; - char_u *p; - int l; - - p = ml_get_cursor(); - for (i = 0; i < count && *p != NUL; ++i) { - l = (*mb_ptr2len)(p); - bytes += l; - p += l; - } - return del_bytes(bytes, fixpos, TRUE); -} - -/* - * Delete "count" bytes under the cursor. - * If "fixpos" is TRUE, don't leave the cursor on the NUL after the line. - * Caller must have prepared for undo. - * - * return FAIL for failure, OK otherwise - */ -int -del_bytes ( - long count, - int fixpos_arg, - int use_delcombine /* 'delcombine' option applies */ -) -{ - char_u *oldp, *newp; - colnr_T oldlen; - linenr_T lnum = curwin->w_cursor.lnum; - colnr_T col = curwin->w_cursor.col; - int was_alloced; - long movelen; - int fixpos = fixpos_arg; - - oldp = ml_get(lnum); - oldlen = (int)STRLEN(oldp); - - /* - * Can't do anything when the cursor is on the NUL after the line. - */ - if (col >= oldlen) - return FAIL; - - /* If 'delcombine' is set and deleting (less than) one character, only - * delete the last combining character. */ - if (p_deco && use_delcombine && enc_utf8 - && utfc_ptr2len(oldp + col) >= count) { - int cc[MAX_MCO]; - int n; - - (void)utfc_ptr2char(oldp + col, cc); - if (cc[0] != NUL) { - /* Find the last composing char, there can be several. */ - n = col; - do { - col = n; - count = utf_ptr2len(oldp + n); - n += count; - } while (UTF_COMPOSINGLIKE(oldp + col, oldp + n)); - fixpos = 0; - } - } - - /* - * When count is too big, reduce it. - */ - movelen = (long)oldlen - (long)col - count + 1; /* includes trailing NUL */ - if (movelen <= 1) { - /* - * If we just took off the last character of a non-blank line, and - * fixpos is TRUE, we don't want to end up positioned at the NUL, - * unless "restart_edit" is set or 'virtualedit' contains "onemore". - */ - if (col > 0 && fixpos && restart_edit == 0 - && (ve_flags & VE_ONEMORE) == 0 - ) { - --curwin->w_cursor.col; - curwin->w_cursor.coladd = 0; - if (has_mbyte) - curwin->w_cursor.col -= - (*mb_head_off)(oldp, oldp + curwin->w_cursor.col); - } - count = oldlen - col; - movelen = 1; - } - - /* - * If the old line has been allocated the deletion can be done in the - * existing line. Otherwise a new line has to be allocated. - */ - was_alloced = ml_line_alloced(); /* check if oldp was allocated */ - if (was_alloced) - newp = oldp; /* use same allocated memory */ - else { /* need to allocate a new line */ - newp = alloc((unsigned)(oldlen + 1 - count)); - if (newp == NULL) - return FAIL; - memmove(newp, oldp, (size_t)col); - } - memmove(newp + col, oldp + col + count, (size_t)movelen); - if (!was_alloced) - ml_replace(lnum, newp, FALSE); - - /* mark the buffer as changed and prepare for displaying */ - changed_bytes(lnum, curwin->w_cursor.col); - - return OK; -} - -/* - * Delete from cursor to end of line. - * Caller must have prepared for undo. - * - * return FAIL for failure, OK otherwise - */ -int -truncate_line ( - int fixpos /* if TRUE fix the cursor position when done */ -) -{ - char_u *newp; - linenr_T lnum = curwin->w_cursor.lnum; - colnr_T col = curwin->w_cursor.col; - - if (col == 0) - newp = vim_strsave((char_u *)""); - else - newp = vim_strnsave(ml_get(lnum), col); - - if (newp == NULL) - return FAIL; - - ml_replace(lnum, newp, FALSE); - - /* mark the buffer as changed and prepare for displaying */ - changed_bytes(lnum, curwin->w_cursor.col); - - /* - * If "fixpos" is TRUE we don't want to end up positioned at the NUL. - */ - if (fixpos && curwin->w_cursor.col > 0) - --curwin->w_cursor.col; - - return OK; -} - -/* - * Delete "nlines" lines at the cursor. - * Saves the lines for undo first if "undo" is TRUE. - */ -void -del_lines ( - long nlines, /* number of lines to delete */ - int undo /* if TRUE, prepare for undo */ -) -{ - long n; - linenr_T first = curwin->w_cursor.lnum; - - if (nlines <= 0) - return; - - /* save the deleted lines for undo */ - if (undo && u_savedel(first, nlines) == FAIL) - return; - - for (n = 0; n < nlines; ) { - if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to delete */ - break; - - ml_delete(first, TRUE); - ++n; - - /* If we delete the last line in the file, stop */ - if (first > curbuf->b_ml.ml_line_count) - break; - } - - /* Correct the cursor position before calling deleted_lines_mark(), it may - * trigger a callback to display the cursor. */ - curwin->w_cursor.col = 0; - check_cursor_lnum(); - - /* adjust marks, mark the buffer as changed and prepare for displaying */ - deleted_lines_mark(first, n); -} - -int gchar_pos(pos_T *pos) -{ - char_u *ptr = ml_get_pos(pos); - - 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; -} - -/* - * Call this function when something in the current buffer is changed. - * - * Most often called through changed_bytes() and changed_lines(), which also - * mark the area of the display to be redrawn. - * - * Careful: may trigger autocommands that reload the buffer. - */ -void changed(void) -{ - - if (!curbuf->b_changed) { - int save_msg_scroll = msg_scroll; - - /* Give a warning about changing a read-only file. This may also - * check-out the file, thus change "curbuf"! */ - change_warning(0); - - /* Create a swap file if that is wanted. - * Don't do this for "nofile" and "nowrite" buffer types. */ - if (curbuf->b_may_swap - && !bt_dontwrite(curbuf) - ) { - ml_open_file(curbuf); - - /* The ml_open_file() can cause an ATTENTION message. - * Wait two seconds, to make sure the user reads this unexpected - * message. Since we could be anywhere, call wait_return() now, - * and don't let the emsg() set msg_scroll. */ - if (need_wait_return && emsg_silent == 0) { - out_flush(); - ui_delay(2000L, TRUE); - wait_return(TRUE); - msg_scroll = save_msg_scroll; - } - } - changed_int(); - } - ++curbuf->b_changedtick; -} - -/* - * Internal part of changed(), no user interaction. - */ -void changed_int(void) -{ - curbuf->b_changed = TRUE; - ml_setflags(curbuf); - check_status(curbuf); - redraw_tabline = TRUE; - need_maketitle = TRUE; /* set window title later */ -} - -static void changedOneline(buf_T *buf, linenr_T lnum); -static void changed_lines_buf(buf_T *buf, linenr_T lnum, linenr_T lnume, - long xtra); -static void changed_common(linenr_T lnum, colnr_T col, linenr_T lnume, - long xtra); - -/* - * Changed bytes within a single line for the current buffer. - * - marks the windows on this buffer to be redisplayed - * - marks the buffer changed by calling changed() - * - invalidates cached values - * Careful: may trigger autocommands that reload the buffer. - */ -void changed_bytes(linenr_T lnum, colnr_T col) -{ - changedOneline(curbuf, lnum); - changed_common(lnum, col, lnum + 1, 0L); - - /* Diff highlighting in other diff windows may need to be updated too. */ - if (curwin->w_p_diff) { - win_T *wp; - linenr_T wlnum; - - for (wp = firstwin; wp != NULL; wp = wp->w_next) - if (wp->w_p_diff && wp != curwin) { - redraw_win_later(wp, VALID); - wlnum = diff_lnum_win(lnum, wp); - if (wlnum > 0) - changedOneline(wp->w_buffer, wlnum); - } - } -} - -static void changedOneline(buf_T *buf, linenr_T lnum) -{ - if (buf->b_mod_set) { - /* find the maximum area that must be redisplayed */ - if (lnum < buf->b_mod_top) - buf->b_mod_top = lnum; - else if (lnum >= buf->b_mod_bot) - buf->b_mod_bot = lnum + 1; - } else { - /* set the area that must be redisplayed to one line */ - buf->b_mod_set = TRUE; - buf->b_mod_top = lnum; - buf->b_mod_bot = lnum + 1; - buf->b_mod_xlines = 0; - } -} - -/* - * Appended "count" lines below line "lnum" in the current buffer. - * Must be called AFTER the change and after mark_adjust(). - * Takes care of marking the buffer to be redrawn and sets the changed flag. - */ -void appended_lines(linenr_T lnum, long count) -{ - changed_lines(lnum + 1, 0, lnum + 1, count); -} - -/* - * Like appended_lines(), but adjust marks first. - */ -void appended_lines_mark(linenr_T lnum, long count) -{ - mark_adjust(lnum + 1, (linenr_T)MAXLNUM, count, 0L); - changed_lines(lnum + 1, 0, lnum + 1, count); -} - -/* - * Deleted "count" lines at line "lnum" in the current buffer. - * Must be called AFTER the change and after mark_adjust(). - * Takes care of marking the buffer to be redrawn and sets the changed flag. - */ -void deleted_lines(linenr_T lnum, long count) -{ - changed_lines(lnum, 0, lnum + count, -count); -} - -/* - * Like deleted_lines(), but adjust marks first. - * Make sure the cursor is on a valid line before calling, a GUI callback may - * be triggered to display the cursor. - */ -void deleted_lines_mark(linenr_T lnum, long count) -{ - mark_adjust(lnum, (linenr_T)(lnum + count - 1), (long)MAXLNUM, -count); - changed_lines(lnum, 0, lnum + count, -count); -} - -/* - * Changed lines for the current buffer. - * Must be called AFTER the change and after mark_adjust(). - * - mark the buffer changed by calling changed() - * - mark the windows on this buffer to be redisplayed - * - invalidate cached values - * "lnum" is the first line that needs displaying, "lnume" the first line - * below the changed lines (BEFORE the change). - * When only inserting lines, "lnum" and "lnume" are equal. - * Takes care of calling changed() and updating b_mod_*. - * Careful: may trigger autocommands that reload the buffer. - */ -void -changed_lines ( - linenr_T lnum, /* first line with change */ - colnr_T col, /* column in first line with change */ - linenr_T lnume, /* line below last changed line */ - long xtra /* number of extra lines (negative when deleting) */ -) -{ - changed_lines_buf(curbuf, lnum, lnume, xtra); - - if (xtra == 0 && curwin->w_p_diff) { - /* When the number of lines doesn't change then mark_adjust() isn't - * called and other diff buffers still need to be marked for - * displaying. */ - win_T *wp; - linenr_T wlnum; - - for (wp = firstwin; wp != NULL; wp = wp->w_next) - if (wp->w_p_diff && wp != curwin) { - redraw_win_later(wp, VALID); - wlnum = diff_lnum_win(lnum, wp); - if (wlnum > 0) - changed_lines_buf(wp->w_buffer, wlnum, - lnume - lnum + wlnum, 0L); - } - } - - changed_common(lnum, col, lnume, xtra); -} - -static void -changed_lines_buf ( - buf_T *buf, - linenr_T lnum, /* first line with change */ - linenr_T lnume, /* line below last changed line */ - long xtra /* number of extra lines (negative when deleting) */ -) -{ - if (buf->b_mod_set) { - /* find the maximum area that must be redisplayed */ - if (lnum < buf->b_mod_top) - buf->b_mod_top = lnum; - if (lnum < buf->b_mod_bot) { - /* adjust old bot position for xtra lines */ - buf->b_mod_bot += xtra; - if (buf->b_mod_bot < lnum) - buf->b_mod_bot = lnum; - } - if (lnume + xtra > buf->b_mod_bot) - buf->b_mod_bot = lnume + xtra; - buf->b_mod_xlines += xtra; - } else { - /* set the area that must be redisplayed */ - buf->b_mod_set = TRUE; - buf->b_mod_top = lnum; - buf->b_mod_bot = lnume + xtra; - buf->b_mod_xlines = xtra; - } -} - -/* - * Common code for when a change is was made. - * See changed_lines() for the arguments. - * Careful: may trigger autocommands that reload the buffer. - */ -static void changed_common(linenr_T lnum, colnr_T col, linenr_T lnume, long xtra) -{ - win_T *wp; - tabpage_T *tp; - int i; - int cols; - pos_T *p; - int add; - - /* mark the buffer as modified */ - changed(); - - /* set the '. mark */ - if (!cmdmod.keepjumps) { - curbuf->b_last_change.lnum = lnum; - curbuf->b_last_change.col = col; - - /* Create a new entry if a new undo-able change was started or we - * don't have an entry yet. */ - if (curbuf->b_new_change || curbuf->b_changelistlen == 0) { - if (curbuf->b_changelistlen == 0) - add = TRUE; - else { - /* Don't create a new entry when the line number is the same - * as the last one and the column is not too far away. Avoids - * creating many entries for typing "xxxxx". */ - p = &curbuf->b_changelist[curbuf->b_changelistlen - 1]; - if (p->lnum != lnum) - add = TRUE; - else { - cols = comp_textwidth(FALSE); - if (cols == 0) - cols = 79; - add = (p->col + cols < col || col + cols < p->col); - } - } - if (add) { - /* This is the first of a new sequence of undo-able changes - * and it's at some distance of the last change. Use a new - * position in the changelist. */ - curbuf->b_new_change = FALSE; - - if (curbuf->b_changelistlen == JUMPLISTSIZE) { - /* changelist is full: remove oldest entry */ - curbuf->b_changelistlen = JUMPLISTSIZE - 1; - memmove(curbuf->b_changelist, curbuf->b_changelist + 1, - sizeof(pos_T) * (JUMPLISTSIZE - 1)); - FOR_ALL_TAB_WINDOWS(tp, wp) - { - /* Correct position in changelist for other windows on - * this buffer. */ - if (wp->w_buffer == curbuf && wp->w_changelistidx > 0) - --wp->w_changelistidx; - } - } - FOR_ALL_TAB_WINDOWS(tp, wp) - { - /* For other windows, if the position in the changelist is - * at the end it stays at the end. */ - if (wp->w_buffer == curbuf - && wp->w_changelistidx == curbuf->b_changelistlen) - ++wp->w_changelistidx; - } - ++curbuf->b_changelistlen; - } - } - curbuf->b_changelist[curbuf->b_changelistlen - 1] = - curbuf->b_last_change; - /* The current window is always after the last change, so that "g," - * takes you back to it. */ - curwin->w_changelistidx = curbuf->b_changelistlen; - } - - FOR_ALL_TAB_WINDOWS(tp, wp) - { - if (wp->w_buffer == curbuf) { - /* Mark this window to be redrawn later. */ - if (wp->w_redr_type < VALID) - wp->w_redr_type = VALID; - - /* Check if a change in the buffer has invalidated the cached - * values for the cursor. */ - /* - * Update the folds for this window. Can't postpone this, because - * a following operator might work on the whole fold: ">>dd". - */ - foldUpdate(wp, lnum, lnume + xtra - 1); - - /* The change may cause lines above or below the change to become - * included in a fold. Set lnum/lnume to the first/last line that - * might be displayed differently. - * Set w_cline_folded here as an efficient way to update it when - * inserting lines just above a closed fold. */ - i = hasFoldingWin(wp, lnum, &lnum, NULL, FALSE, NULL); - if (wp->w_cursor.lnum == lnum) - wp->w_cline_folded = i; - i = hasFoldingWin(wp, lnume, NULL, &lnume, FALSE, NULL); - if (wp->w_cursor.lnum == lnume) - wp->w_cline_folded = i; - - /* If the changed line is in a range of previously folded lines, - * compare with the first line in that range. */ - if (wp->w_cursor.lnum <= lnum) { - i = find_wl_entry(wp, lnum); - if (i >= 0 && wp->w_cursor.lnum > wp->w_lines[i].wl_lnum) - changed_line_abv_curs_win(wp); - } - - if (wp->w_cursor.lnum > lnum) - changed_line_abv_curs_win(wp); - else if (wp->w_cursor.lnum == lnum && wp->w_cursor.col >= col) - changed_cline_bef_curs_win(wp); - if (wp->w_botline >= lnum) { - /* Assume that botline doesn't change (inserted lines make - * other lines scroll down below botline). */ - approximate_botline_win(wp); - } - - /* Check if any w_lines[] entries have become invalid. - * For entries below the change: Correct the lnums for - * inserted/deleted lines. Makes it possible to stop displaying - * after the change. */ - for (i = 0; i < wp->w_lines_valid; ++i) - if (wp->w_lines[i].wl_valid) { - if (wp->w_lines[i].wl_lnum >= lnum) { - if (wp->w_lines[i].wl_lnum < lnume) { - /* line included in change */ - wp->w_lines[i].wl_valid = FALSE; - } else if (xtra != 0) { - /* line below change */ - wp->w_lines[i].wl_lnum += xtra; - wp->w_lines[i].wl_lastlnum += xtra; - } - } else if (wp->w_lines[i].wl_lastlnum >= lnum) { - /* change somewhere inside this range of folded lines, - * may need to be redrawn */ - wp->w_lines[i].wl_valid = FALSE; - } - } - - /* Take care of side effects for setting w_topline when folds have - * changed. Esp. when the buffer was changed in another window. */ - if (hasAnyFolding(wp)) - set_topline(wp, wp->w_topline); - } - } - - /* Call update_screen() later, which checks out what needs to be redrawn, - * since it notices b_mod_set and then uses b_mod_*. */ - if (must_redraw < VALID) - must_redraw = VALID; - - /* when the cursor line is changed always trigger CursorMoved */ - if (lnum <= curwin->w_cursor.lnum - && lnume + (xtra < 0 ? -xtra : xtra) > curwin->w_cursor.lnum) - last_cursormoved.lnum = 0; -} - -/* - * unchanged() is called when the changed flag must be reset for buffer 'buf' - */ -void -unchanged ( - buf_T *buf, - int ff /* also reset 'fileformat' */ -) -{ - if (buf->b_changed || (ff && file_ff_differs(buf, FALSE))) { - buf->b_changed = 0; - ml_setflags(buf); - if (ff) - save_file_ff(buf); - check_status(buf); - redraw_tabline = TRUE; - need_maketitle = TRUE; /* set window title later */ - } - ++buf->b_changedtick; -} - -/* - * 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 (wp = firstwin; wp != NULL; wp = wp->w_next) - if (wp->w_buffer == buf && wp->w_status_height) { - wp->w_redr_status = TRUE; - if (must_redraw < VALID) - must_redraw = VALID; - } -} - -/* - * If the file is readonly, give a warning message with the first change. - * Don't do this for autocommands. - * Don't use emsg(), because it flushes the macro buffer. - * If we have undone all changes b_changed will be FALSE, but "b_did_warn" - * will be TRUE. - * Careful: may trigger autocommands that reload the buffer. - */ -void -change_warning ( - int col /* column for message; non-zero when in insert - mode and 'showmode' is on */ -) -{ - static char *w_readonly = N_("W10: Warning: Changing a readonly file"); - - if (curbuf->b_did_warn == FALSE - && curbufIsChanged() == 0 - && !autocmd_busy - && curbuf->b_p_ro) { - ++curbuf_lock; - apply_autocmds(EVENT_FILECHANGEDRO, NULL, NULL, FALSE, curbuf); - --curbuf_lock; - if (!curbuf->b_p_ro) - return; - /* - * Do what msg() does, but with a column offset if the warning should - * be after the mode message. - */ - msg_start(); - if (msg_row == Rows - 1) - msg_col = col; - msg_source(hl_attr(HLF_W)); - MSG_PUTS_ATTR(_(w_readonly), hl_attr(HLF_W) | MSG_HIST); - set_vim_var_string(VV_WARNINGMSG, (char_u *)_(w_readonly), -1); - msg_clr_eos(); - (void)msg_end(); - if (msg_silent == 0 && !silent_mode) { - out_flush(); - ui_delay(1000L, TRUE); /* give the user time to think about it */ - } - curbuf->b_did_warn = TRUE; - redraw_cmdline = FALSE; /* don't redraw and erase the message */ - if (msg_row < Rows - 1) - showmode(); - } -} - -/* - * Ask for a reply from the user, a 'y' or a 'n'. - * 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 = 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), (char_u *)"%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; -} - -/* - * Return TRUE if "c" is a mouse key. - */ -int is_mouse_key(int c) -{ - return c == K_LEFTMOUSE - || c == K_LEFTMOUSE_NM - || c == K_LEFTDRAG - || c == K_LEFTRELEASE - || c == K_LEFTRELEASE_NM - || c == K_MIDDLEMOUSE - || c == K_MIDDLEDRAG - || c == K_MIDDLERELEASE - || c == K_RIGHTMOUSE - || c == K_RIGHTDRAG - || c == K_RIGHTRELEASE - || c == K_MOUSEDOWN - || c == K_MOUSEUP - || c == K_MOUSELEFT - || c == K_MOUSERIGHT - || c == K_X1MOUSE - || c == K_X1DRAG - || c == K_X1RELEASE - || c == K_X2MOUSE - || c == K_X2DRAG - || c == K_X2RELEASE; -} - -/* - * 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) { - /* Need some more space. This might happen when receiving a long - * escape sequence. */ - buflen += 100; - buf = xrealloc(buf, buflen); - maxlen = (buflen - 6 - len) / 3; - } - - /* 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, FALSE); - 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 & CMDLINE) == 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) - ) { - if (buf[1] == KS_MODIFIER) - mod_mask = buf[2]; - len -= 3; - if (len > 0) - 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; - } - free(buf); - - mapped_ctrl_c = save_mapped_ctrl_c; - return n; -} - -/* - * 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)) { - n = n * 10 + c - '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 == CAR || c == NL || c == Ctrl_C || c == ESC) - 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 mouse (empty cancels): ")); - else - MSG_PUTS(_("Type number and <Enter> (empty cancels): ")); - - /* Set the state such that text can be selected/copied/pasted and we still - * get mouse events. */ - save_cmdline_row = cmdline_row; - cmdline_row = 0; - save_State = State; - State = CMDLINE; - - i = get_number(TRUE, mouse_used); - if (KeyTyped) { - /* don't call wait_return() now */ - /* msg_putchar('\n'); */ - cmdline_row = msg_row - 1; - need_wait_return = FALSE; - msg_didany = FALSE; - msg_didout = FALSE; - } else - cmdline_row = save_cmdline_row; - State = save_State; - - 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 (pn == 1) { - if (n > 0) - vim_strncpy(msg_buf, (char_u *)_("1 more line"), - MSG_BUF_LEN - 1); - else - vim_strncpy(msg_buf, (char_u *)_("1 line less"), - MSG_BUF_LEN - 1); - } else { - if (n > 0) - vim_snprintf((char *)msg_buf, MSG_BUF_LEN, - _("%" PRId64 " more lines"), (int64_t)pn); - else - vim_snprintf((char *)msg_buf, MSG_BUF_LEN, - _("%" PRId64 " fewer lines"), (int64_t)pn); - } - if (got_int) - vim_strcat(msg_buf, (char_u *)_(" (Interrupted)"), MSG_BUF_LEN); - if (msg(msg_buf)) { - set_keep_msg(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(FALSE); - vim_beep(); - } -} - -/* - * give a warning for an error - */ -void vim_beep(void) -{ - if (emsg_silent == 0) { - if (p_vb - ) { - out_str(T_VB); - } else { - out_char(BELL); - } - - /* When 'verbose' is set and 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((char_u *)_("Beep!"), hl_attr(HLF_W)); - } - } -} - -/* - * To get the "real" home directory: - * - get value of $HOME - * For Unix: - * - go to that directory - * - do os_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. - */ -static char_u *homedir = NULL; - -void init_homedir(void) -{ - char_u *var; - - /* In case we are called a second time (when 'encoding' changes). */ - free(homedir); - homedir = NULL; - - var = (char_u *)os_getenv("HOME"); - - if (var != NULL && *var == NUL) /* empty is same as not set */ - var = NULL; - - - 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 (os_dirname(NameBuff, MAXPATHL) == OK - && os_chdir((char *)NameBuff) == 0) { - if (!os_chdir((char *)var) && os_dirname(IObuff, IOSIZE) == OK) - var = IObuff; - if (os_chdir((char *)NameBuff) != 0) - EMSG(_(e_prev_dir)); - } -#endif - homedir = vim_strsave(var); - } -} - -#if defined(EXITFREE) || defined(PROTO) -void free_homedir(void) -{ - free(homedir); -} - -void free_users(void) -{ - ga_clear_strings(&ga_users); -} - -#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); - 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. "$HOME/vim.hlp" */ - char_u *dst, /* where to put the result */ - int dstlen, /* maximum length of the result */ - int esc, /* escape spaces in expanded variables */ - int one, /* "srcp" is one file name */ - char_u *startstr /* start again after this (can be NULL) */ -) -{ - char_u *src; - char_u *tail; - int c; - char_u *var; - int copy_char; - int mustfree; /* var was allocated, need to free it later */ - int at_start = TRUE; /* at start of a name */ - int startstr_len = 0; - - if (startstr != NULL) - startstr_len = (int)STRLEN(startstr); - - src = skipwhite(srcp); - --dstlen; /* leave one char space for "\," */ - while (*src && dstlen > 0) { - copy_char = TRUE; - if ((*src == '$' - ) - || (*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)) - )) { - *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) - /* - * 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; - /* - * Use os_get_user_directory() to get the user directory. - * If this function 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). - */ - var = (char_u *)os_get_user_directory((char *)dst + 1); - mustfree = TRUE; - if (var == NULL) - { - 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 - /* cannot expand user's home directory, so don't try */ - var = NULL; - tail = (char_u *)""; /* for gcc */ -#endif /* UNIX */ - } - -#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) - 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) - 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 (*var != NUL && after_pathsep(dst, dst + c) -#if defined(BACKSLASH_IN_FILENAME) - && dst[-1] != ':' -#endif - && vim_ispathsep(*tail)) - ++tail; - dst += c; - src = tail; - copy_char = FALSE; - } - if (mustfree) - 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; - *dst++ = *src++; - --dstlen; - - if (startstr != NULL && src - startstr_len >= srcp - && STRNCMP(src - startstr_len, startstr, startstr_len) == 0) - at_start = TRUE; - } - } - *dst = NUL; -} - -/* - * 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 returned is allocated, it must be - * initialized to FALSE by the caller. - */ -char_u *vim_getenv(char_u *name, int *mustfree) -{ - char_u *p; - char_u *pend; - int vimruntime; - - - p = (char_u *)os_getenv((char *)name); - if (p != NULL && *p == NUL) /* empty is the same as not set */ - p = NULL; - - if (p != NULL) { - return p; - } - - 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 - ) { - p = (char_u *)os_getenv("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 = (char_u *)os_getenv("VIM"); - - } - } - - /* - * 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 = path_tail(p); - - /* remove "doc/" from 'helpfile', if present */ - if (p == p_hf) - pend = remove_tail(p, pend, (char_u *)"doc"); - -#ifdef USE_EXE_NAME - /* 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 */ - /* With MacOS path (with colons) the final colon is required */ - /* to avoid confusion between absolute and relative path */ - if (pend > p && after_pathsep(p, pend)) - --pend; - - /* check that the result is a directory name */ - p = vim_strnsave(p, (int)(pend - p)); - - if (p != NULL && !os_isdir(p)) { - free(p); - p = NULL; - } else { -#ifdef USE_EXE_NAME - /* may add "/vim54" or "/runtime" if it exists */ - if (vimruntime && (pend = vim_version_dir(p)) != NULL) { - 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; -} - -/* - * 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 (os_isdir(p)) - return p; - free(p); - p = concat_fnames(vimdir, (char_u *)RUNTIME_DIRNAME, TRUE); - if (os_isdir(p)) - return p; - free(p); - return NULL; -} - -/* - * 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; -} - -/* - * Our portable version of setenv. - */ -void vim_setenv(char_u *name, char_u *val) -{ - os_setenv((char *)name, (char *)val, 1); - /* - * 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"); - bindtextdomain(VIMPACKAGE, (char *)buf); - free(buf); - } -} - - -/* - * Function given to ExpandGeneric() to obtain an environment variable name. - */ -char_u *get_env_name(expand_T *xp, int idx) -{ -# define ENVNAMELEN 100 - // this static buffer is needed to avoid a memory leak in ExpandGeneric - static char_u name[ENVNAMELEN]; - char *envname = os_getenvname_at_index(idx); - if (envname) { - vim_strncpy(name, (char_u *)envname, ENVNAMELEN - 1); - free(envname); - return name; - } else { - return NULL; - } -} - -/* - * 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; - - os_get_usernames(&ga_users); -} - -/* - * Function given to ExpandGeneric() to obtain an user names. - */ -char_u *get_users(expand_T *xp, 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; -} - -/* - * Replace home directory by "~" in each space or comma separated file name in - * 'src'. - * If anything fails (except when out of space) dst equals src. - */ -void -home_replace ( - buf_T *buf, /* when not NULL, check for help files */ - char_u *src, /* input file name */ - char_u *dst, /* where to put the result */ - int dstlen, /* maximum length of the result */ - int one /* if TRUE, only replace one file name, include - spaces and commas in the file name. */ -) -{ - size_t dirlen = 0, envlen = 0; - size_t len; - char_u *homedir_env, *homedir_env_orig; - char_u *p; - - if (src == NULL) { - *dst = NUL; - return; - } - - /* - * If the file is a help file, remove the path completely. - */ - if (buf != NULL && buf->b_help) { - STRCPY(dst, path_tail(src)); - return; - } - - /* - * We check both the value of the $HOME environment variable and the - * "real" home directory. - */ - if (homedir != NULL) - dirlen = STRLEN(homedir); - - homedir_env_orig = homedir_env = (char_u *)os_getenv("HOME"); - /* Empty is the same as not set. */ - if (homedir_env != NULL && *homedir_env == NUL) - homedir_env = NULL; - - if (homedir_env != NULL && vim_strchr(homedir_env, '~') != NULL) { - int usedlen = 0; - int flen; - char_u *fbuf = NULL; - - flen = (int)STRLEN(homedir_env); - (void)modify_fname((char_u *)":p", &usedlen, - &homedir_env, &fbuf, &flen); - flen = (int)STRLEN(homedir_env); - if (flen > 0 && vim_ispathsep(homedir_env[flen - 1])) - /* Remove the trailing / that is added to a directory. */ - homedir_env[flen - 1] = NUL; - } - - if (homedir_env != NULL) - envlen = STRLEN(homedir_env); - - if (!one) - src = skipwhite(src); - while (*src && dstlen > 0) { - /* - * Here we are at the beginning of a file name. - * First, check to see if the beginning of the file name matches - * $HOME or the "real" home directory. Check that there is a '/' - * after the match (so that if e.g. the file is "/home/pieter/bla", - * and the home directory is "/home/piet", the file does not end up - * as "~er/bla" (which would seem to indicate the file "bla" in user - * er's home directory)). - */ - p = homedir; - len = dirlen; - for (;; ) { - if ( len - && fnamencmp(src, p, len) == 0 - && (vim_ispathsep(src[len]) - || (!one && (src[len] == ',' || src[len] == ' ')) - || src[len] == NUL)) { - src += len; - if (--dstlen > 0) - *dst++ = '~'; - - /* - * If it's just the home directory, add "/". - */ - if (!vim_ispathsep(src[0]) && --dstlen > 0) - *dst++ = '/'; - break; - } - if (p == homedir_env) - break; - p = homedir_env; - len = envlen; - } - - /* if (!one) skip to separator: space or comma */ - while (*src && (one || (*src != ',' && *src != ' ')) && --dstlen > 0) - *dst++ = *src++; - /* skip separator */ - while ((*src == ' ' || *src == ',') && --dstlen > 0) - *dst++ = *src++; - } - /* if (dstlen == 0) out of space, what to do??? */ - - *dst = NUL; - - if (homedir_env != homedir_env_orig) - free(homedir_env); -} - -/* - * Like home_replace, store the replaced string in allocated memory. - * When something fails, NULL is returned. - */ -char_u * -home_replace_save ( - buf_T *buf, /* when not NULL, check for help files */ - char_u *src /* input file name */ -) -{ - char_u *dst; - unsigned len; - - len = 3; /* space for "~/" and trailing NUL */ - if (src != NULL) /* just in case */ - len += (unsigned)STRLEN(src); - dst = alloc(len); - home_replace(buf, src, dst, len, TRUE); - return dst; -} - -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. */ - signal(SIGHUP, SIG_IGN); -#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; - - // Prevent repeated calls into this method. - if (really_exiting) { - exit(2); - } - - really_exiting = TRUE; - - prepare_to_exit(); - - out_str(IObuff); - screen_start(); /* don't know where cursor is now */ - out_flush(); - - ml_close_notmod(); /* close all not-modified buffers */ - - for (buf = firstbuf; buf != NULL; buf = buf->b_next) { - if (buf->b_ml.ml_mfp != NULL && buf->b_ml.ml_mfp->mf_fname != NULL) { - OUT_STR("Vim: preserving files...\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.\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 32 -#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(); - } -} - -#ifndef SEEK_SET -# define SEEK_SET 0 -#endif -#ifndef SEEK_END -# define SEEK_END 2 -#endif - -/* - * Get the stdout of an external command. - * 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 */ -) -{ - 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')) == NULL) { - EMSG(_(e_notmp)); - return NULL; - } - - /* Add the redirection stuff */ - command = make_filter_cmd(cmd, infile, tempname); - - /* - * Call the shell to execute the command (errors are ignored). - * Don't check timestamps here. - */ - ++no_check_timestamps; - call_shell(command, kShellOptDoOut | kShellOptExpand | flags, NULL); - --no_check_timestamps; - - free(command); - - /* - * read the names from the file into memory - */ - fd = mch_fopen((char *)tempname, READBIN); - - if (fd == NULL) { - EMSG2(_(e_notopen), tempname); - goto done; - } - - fseek(fd, 0L, SEEK_END); - len = ftell(fd); /* get size of temp file */ - fseek(fd, 0L, SEEK_SET); - - buffer = alloc(len + 1); - i = (int)fread((char *)buffer, (size_t)1, (size_t)len, fd); - fclose(fd); - os_remove((char *)tempname); - if (buffer == NULL) - goto done; - if (i != len) { - EMSG2(_(e_notread), tempname); - free(buffer); - buffer = NULL; - } else { - /* 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 */ - } - -done: - free(tempname); - return buffer; -} - -/* - * Free the list of files returned by expand_wildcards() or other expansion - * functions. - */ -void FreeWild(int count, char_u **files) -{ - if (count <= 0 || files == NULL) - return; - while (count--) - free(files[count]); - free(files); -} - -/* - * 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(); -} - |