Mercurial > vim
view src/indent.c @ 25507:1ac82ad3ee01 v8.2.3290
patch 8.2.3290: Vim9: compiling dict may use pointer after free
Commit: https://github.com/vim/vim/commit/9fe17d473a6041e2ea85229f4fa09831d910def4
Author: Zdenek Dohnal <zdohnal@redhat.com>
Date: Wed Aug 4 22:30:52 2021 +0200
patch 8.2.3290: Vim9: compiling dict may use pointer after free
Problem: Vim9: compiling dict may use pointer after free and leak memory on
failure.
Solution: Pass a pointer to generate_PUSHS(). (Zdenek Dohnal, closes #8699)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Wed, 04 Aug 2021 22:45:04 +0200 |
parents | 65f04b6effd5 |
children | 357a3bee56f5 |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * 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. */ /* * indent.c: Indentation related functions */ #include "vim.h" #if defined(FEAT_VARTABS) || defined(PROTO) /* * Set the integer values corresponding to the string setting of 'vartabstop'. * "array" will be set, caller must free it if needed. */ int tabstop_set(char_u *var, int **array) { int valcount = 1; int t; char_u *cp; if (var[0] == NUL || (var[0] == '0' && var[1] == NUL)) { *array = NULL; return TRUE; } for (cp = var; *cp != NUL; ++cp) { if (cp == var || cp[-1] == ',') { char_u *end; if (strtol((char *)cp, (char **)&end, 10) <= 0) { if (cp != end) emsg(_(e_positive)); else emsg(_(e_invarg)); return FALSE; } } if (VIM_ISDIGIT(*cp)) continue; if (cp[0] == ',' && cp > var && cp[-1] != ',' && cp[1] != NUL) { ++valcount; continue; } emsg(_(e_invarg)); return FALSE; } *array = ALLOC_MULT(int, valcount + 1); if (*array == NULL) return FALSE; (*array)[0] = valcount; t = 1; for (cp = var; *cp != NUL;) { (*array)[t++] = atoi((char *)cp); while (*cp != NUL && *cp != ',') ++cp; if (*cp != NUL) ++cp; } return TRUE; } /* * Calculate the number of screen spaces a tab will occupy. * If "vts" is set then the tab widths are taken from that array, * otherwise the value of ts is used. */ int tabstop_padding(colnr_T col, int ts_arg, int *vts) { int ts = ts_arg == 0 ? 8 : ts_arg; int tabcount; colnr_T tabcol = 0; int t; int padding = 0; if (vts == NULL || vts[0] == 0) return ts - (col % ts); tabcount = vts[0]; for (t = 1; t <= tabcount; ++t) { tabcol += vts[t]; if (tabcol > col) { padding = (int)(tabcol - col); break; } } if (t > tabcount) padding = vts[tabcount] - (int)((col - tabcol) % vts[tabcount]); return padding; } /* * Find the size of the tab that covers a particular column. */ int tabstop_at(colnr_T col, int ts, int *vts) { int tabcount; colnr_T tabcol = 0; int t; int tab_size = 0; if (vts == 0 || vts[0] == 0) return ts; tabcount = vts[0]; for (t = 1; t <= tabcount; ++t) { tabcol += vts[t]; if (tabcol > col) { tab_size = vts[t]; break; } } if (t > tabcount) tab_size = vts[tabcount]; return tab_size; } /* * Find the column on which a tab starts. */ colnr_T tabstop_start(colnr_T col, int ts, int *vts) { int tabcount; colnr_T tabcol = 0; int t; int excess; if (vts == NULL || vts[0] == 0) return (col / ts) * ts; tabcount = vts[0]; for (t = 1; t <= tabcount; ++t) { tabcol += vts[t]; if (tabcol > col) return tabcol - vts[t]; } excess = tabcol % vts[tabcount]; return excess + ((col - excess) / vts[tabcount]) * vts[tabcount]; } /* * Find the number of tabs and spaces necessary to get from one column * to another. */ void tabstop_fromto( colnr_T start_col, colnr_T end_col, int ts_arg, int *vts, int *ntabs, int *nspcs) { int spaces = end_col - start_col; colnr_T tabcol = 0; int padding = 0; int tabcount; int t; int ts = ts_arg == 0 ? curbuf->b_p_ts : ts_arg; if (vts == NULL || vts[0] == 0) { int tabs = 0; int initspc = 0; initspc = ts - (start_col % ts); if (spaces >= initspc) { spaces -= initspc; tabs++; } tabs += spaces / ts; spaces -= (spaces / ts) * ts; *ntabs = tabs; *nspcs = spaces; return; } // Find the padding needed to reach the next tabstop. tabcount = vts[0]; for (t = 1; t <= tabcount; ++t) { tabcol += vts[t]; if (tabcol > start_col) { padding = (int)(tabcol - start_col); break; } } if (t > tabcount) padding = vts[tabcount] - (int)((start_col - tabcol) % vts[tabcount]); // If the space needed is less than the padding no tabs can be used. if (spaces < padding) { *ntabs = 0; *nspcs = spaces; return; } *ntabs = 1; spaces -= padding; // At least one tab has been used. See if any more will fit. while (spaces != 0 && ++t <= tabcount) { padding = vts[t]; if (spaces < padding) { *nspcs = spaces; return; } ++*ntabs; spaces -= padding; } *ntabs += spaces / vts[tabcount]; *nspcs = spaces % vts[tabcount]; } /* * See if two tabstop arrays contain the same values. */ static int tabstop_eq(int *ts1, int *ts2) { int t; if ((ts1 == 0 && ts2) || (ts1 && ts2 == 0)) return FALSE; if (ts1 == ts2) return TRUE; if (ts1[0] != ts2[0]) return FALSE; for (t = 1; t <= ts1[0]; ++t) if (ts1[t] != ts2[t]) return FALSE; return TRUE; } # if defined(FEAT_BEVAL) || defined(PROTO) /* * Copy a tabstop array, allocating space for the new array. */ int * tabstop_copy(int *oldts) { int *newts; int t; if (oldts == NULL) return NULL; newts = ALLOC_MULT(int, oldts[0] + 1); if (newts != NULL) for (t = 0; t <= oldts[0]; ++t) newts[t] = oldts[t]; return newts; } # endif /* * Return a count of the number of tabstops. */ int tabstop_count(int *ts) { return ts != NULL ? ts[0] : 0; } /* * Return the first tabstop, or 8 if there are no tabstops defined. */ int tabstop_first(int *ts) { return ts != NULL ? ts[1] : 8; } #endif /* * Return the effective shiftwidth value for current buffer, using the * 'tabstop' value when 'shiftwidth' is zero. */ long get_sw_value(buf_T *buf) { return get_sw_value_col(buf, 0); } /* * Idem, using "pos". */ static long get_sw_value_pos(buf_T *buf, pos_T *pos) { pos_T save_cursor = curwin->w_cursor; long sw_value; curwin->w_cursor = *pos; sw_value = get_sw_value_col(buf, get_nolist_virtcol()); curwin->w_cursor = save_cursor; return sw_value; } /* * Idem, using the first non-black in the current line. */ long get_sw_value_indent(buf_T *buf) { pos_T pos = curwin->w_cursor; pos.col = getwhitecols_curline(); return get_sw_value_pos(buf, &pos); } /* * Idem, using virtual column "col". */ long get_sw_value_col(buf_T *buf, colnr_T col UNUSED) { return buf->b_p_sw ? buf->b_p_sw : #ifdef FEAT_VARTABS tabstop_at(col, buf->b_p_ts, buf->b_p_vts_array); #else buf->b_p_ts; #endif } /* * Return the effective softtabstop value for the current buffer, using the * 'shiftwidth' value when 'softtabstop' is negative. */ long get_sts_value(void) { return curbuf->b_p_sts < 0 ? get_sw_value(curbuf) : curbuf->b_p_sts; } /* * Count the size (in window cells) of the indent in the current line. */ int get_indent(void) { #ifdef FEAT_VARTABS return get_indent_str_vtab(ml_get_curline(), (int)curbuf->b_p_ts, curbuf->b_p_vts_array, FALSE); #else return get_indent_str(ml_get_curline(), (int)curbuf->b_p_ts, FALSE); #endif } /* * Count the size (in window cells) of the indent in line "lnum". */ int get_indent_lnum(linenr_T lnum) { #ifdef FEAT_VARTABS return get_indent_str_vtab(ml_get(lnum), (int)curbuf->b_p_ts, curbuf->b_p_vts_array, FALSE); #else return get_indent_str(ml_get(lnum), (int)curbuf->b_p_ts, FALSE); #endif } #if defined(FEAT_FOLDING) || defined(PROTO) /* * Count the size (in window cells) of the indent in line "lnum" of buffer * "buf". */ int get_indent_buf(buf_T *buf, linenr_T lnum) { # ifdef FEAT_VARTABS return get_indent_str_vtab(ml_get_buf(buf, lnum, FALSE), (int)curbuf->b_p_ts, buf->b_p_vts_array, FALSE); # else return get_indent_str(ml_get_buf(buf, lnum, FALSE), (int)buf->b_p_ts, FALSE); # endif } #endif /* * count the size (in window cells) of the indent in line "ptr", with * 'tabstop' at "ts" */ int get_indent_str( char_u *ptr, int ts, int list) // if TRUE, count only screen size for tabs { int count = 0; for ( ; *ptr; ++ptr) { if (*ptr == TAB) { if (!list || curwin->w_lcs_chars.tab1) // count a tab for what it is worth count += ts - (count % ts); else // In list mode, when tab is not set, count screen char width // for Tab, displays: ^I count += ptr2cells(ptr); } else if (*ptr == ' ') ++count; // count a space for one else break; } return count; } #ifdef FEAT_VARTABS /* * Count the size (in window cells) of the indent in line "ptr", using * variable tabstops. * if "list" is TRUE, count only screen size for tabs. */ int get_indent_str_vtab(char_u *ptr, int ts, int *vts, int list) { int count = 0; for ( ; *ptr; ++ptr) { if (*ptr == TAB) // count a tab for what it is worth { if (!list || curwin->w_lcs_chars.tab1) count += tabstop_padding(count, ts, vts); else // In list mode, when tab is not set, count screen char width // for Tab, displays: ^I count += ptr2cells(ptr); } else if (*ptr == ' ') ++count; // count a space for one else break; } return count; } #endif /* * Set the indent of the current line. * Leaves the cursor on the first non-blank in the line. * Caller must take care of undo. * "flags": * SIN_CHANGED: call changed_bytes() if the line was changed. * SIN_INSERT: insert the indent in front of the line. * SIN_UNDO: save line for undo before changing it. * Returns TRUE if the line was changed. */ int set_indent( int size, // measured in spaces int flags) { char_u *p; char_u *newline; char_u *oldline; char_u *s; int todo; int ind_len; // measured in characters int line_len; int doit = FALSE; int ind_done = 0; // measured in spaces #ifdef FEAT_VARTABS int ind_col = 0; #endif int tab_pad; int retval = FALSE; int orig_char_len = -1; // number of initial whitespace chars when // 'et' and 'pi' are both set // First check if there is anything to do and compute the number of // characters needed for the indent. todo = size; ind_len = 0; p = oldline = ml_get_curline(); // Calculate the buffer size for the new indent, and check to see if it // isn't already set // if 'expandtab' isn't set: use TABs; if both 'expandtab' and // 'preserveindent' are set count the number of characters at the // beginning of the line to be copied if (!curbuf->b_p_et || (!(flags & SIN_INSERT) && curbuf->b_p_pi)) { // If 'preserveindent' is set then reuse as much as possible of // the existing indent structure for the new indent if (!(flags & SIN_INSERT) && curbuf->b_p_pi) { ind_done = 0; // count as many characters as we can use while (todo > 0 && VIM_ISWHITE(*p)) { if (*p == TAB) { #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif // stop if this tab will overshoot the target if (todo < tab_pad) break; todo -= tab_pad; ++ind_len; ind_done += tab_pad; } else { --todo; ++ind_len; ++ind_done; } ++p; } #ifdef FEAT_VARTABS // These diverge from this point. ind_col = ind_done; #endif // Set initial number of whitespace chars to copy if we are // preserving indent but expandtab is set if (curbuf->b_p_et) orig_char_len = ind_len; // Fill to next tabstop with a tab, if possible #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif if (todo >= tab_pad && orig_char_len == -1) { doit = TRUE; todo -= tab_pad; ++ind_len; // ind_done += tab_pad; #ifdef FEAT_VARTABS ind_col += tab_pad; #endif } } // count tabs required for indent #ifdef FEAT_VARTABS for (;;) { tab_pad = tabstop_padding(ind_col, curbuf->b_p_ts, curbuf->b_p_vts_array); if (todo < tab_pad) break; if (*p != TAB) doit = TRUE; else ++p; todo -= tab_pad; ++ind_len; ind_col += tab_pad; } #else while (todo >= (int)curbuf->b_p_ts) { if (*p != TAB) doit = TRUE; else ++p; todo -= (int)curbuf->b_p_ts; ++ind_len; // ind_done += (int)curbuf->b_p_ts; } #endif } // count spaces required for indent while (todo > 0) { if (*p != ' ') doit = TRUE; else ++p; --todo; ++ind_len; // ++ind_done; } // Return if the indent is OK already. if (!doit && !VIM_ISWHITE(*p) && !(flags & SIN_INSERT)) return FALSE; // Allocate memory for the new line. if (flags & SIN_INSERT) p = oldline; else p = skipwhite(p); line_len = (int)STRLEN(p) + 1; // If 'preserveindent' and 'expandtab' are both set keep the original // characters and allocate accordingly. We will fill the rest with spaces // after the if (!curbuf->b_p_et) below. if (orig_char_len != -1) { newline = alloc(orig_char_len + size - ind_done + line_len); if (newline == NULL) return FALSE; todo = size - ind_done; ind_len = orig_char_len + todo; // Set total length of indent in // characters, which may have been // undercounted until now p = oldline; s = newline; while (orig_char_len > 0) { *s++ = *p++; orig_char_len--; } // Skip over any additional white space (useful when newindent is less // than old) while (VIM_ISWHITE(*p)) ++p; } else { todo = size; newline = alloc(ind_len + line_len); if (newline == NULL) return FALSE; s = newline; } // Put the characters in the new line. // if 'expandtab' isn't set: use TABs if (!curbuf->b_p_et) { // If 'preserveindent' is set then reuse as much as possible of // the existing indent structure for the new indent if (!(flags & SIN_INSERT) && curbuf->b_p_pi) { p = oldline; ind_done = 0; while (todo > 0 && VIM_ISWHITE(*p)) { if (*p == TAB) { #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif // stop if this tab will overshoot the target if (todo < tab_pad) break; todo -= tab_pad; ind_done += tab_pad; } else { --todo; ++ind_done; } *s++ = *p++; } // Fill to next tabstop with a tab, if possible #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif if (todo >= tab_pad) { *s++ = TAB; todo -= tab_pad; #ifdef FEAT_VARTABS ind_done += tab_pad; #endif } p = skipwhite(p); } #ifdef FEAT_VARTABS for (;;) { tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); if (todo < tab_pad) break; *s++ = TAB; todo -= tab_pad; ind_done += tab_pad; } #else while (todo >= (int)curbuf->b_p_ts) { *s++ = TAB; todo -= (int)curbuf->b_p_ts; } #endif } while (todo > 0) { *s++ = ' '; --todo; } mch_memmove(s, p, (size_t)line_len); // Replace the line (unless undo fails). if (!(flags & SIN_UNDO) || u_savesub(curwin->w_cursor.lnum) == OK) { colnr_T old_offset = (colnr_T)(p - oldline); colnr_T new_offset = (colnr_T)(s - newline); // this may free "newline" ml_replace(curwin->w_cursor.lnum, newline, FALSE); if (flags & SIN_CHANGED) changed_bytes(curwin->w_cursor.lnum, 0); // Correct saved cursor position if it is in this line. if (saved_cursor.lnum == curwin->w_cursor.lnum) { if (saved_cursor.col >= old_offset) // cursor was after the indent, adjust for the number of // bytes added/removed saved_cursor.col += ind_len - old_offset; else if (saved_cursor.col >= new_offset) // cursor was in the indent, and is now after it, put it back // at the start of the indent (replacing spaces with TAB) saved_cursor.col = new_offset; } #ifdef FEAT_PROP_POPUP { int added = ind_len - old_offset; // When increasing indent this behaves like spaces were inserted at // the old indent, when decreasing indent it behaves like spaces // were deleted at the new indent. adjust_prop_columns(curwin->w_cursor.lnum, added > 0 ? old_offset : (colnr_T)ind_len, added, 0); } #endif retval = TRUE; } else vim_free(newline); curwin->w_cursor.col = ind_len; return retval; } /* * Return the indent of the current line after a number. Return -1 if no * number was found. Used for 'n' in 'formatoptions': numbered list. * Since a pattern is used it can actually handle more than numbers. */ int get_number_indent(linenr_T lnum) { colnr_T col; pos_T pos; regmatch_T regmatch; int lead_len = 0; // length of comment leader if (lnum > curbuf->b_ml.ml_line_count) return -1; pos.lnum = 0; // In format_lines() (i.e. not insert mode), fo+=q is needed too... if ((State & INSERT) || has_format_option(FO_Q_COMS)) lead_len = get_leader_len(ml_get(lnum), NULL, FALSE, TRUE); regmatch.regprog = vim_regcomp(curbuf->b_p_flp, RE_MAGIC); if (regmatch.regprog != NULL) { regmatch.rm_ic = FALSE; // vim_regexec() expects a pointer to a line. This lets us // start matching for the flp beyond any comment leader... if (vim_regexec(®match, ml_get(lnum) + lead_len, (colnr_T)0)) { pos.lnum = lnum; pos.col = (colnr_T)(*regmatch.endp - ml_get(lnum)); pos.coladd = 0; } vim_regfree(regmatch.regprog); } if (pos.lnum == 0 || *ml_get_pos(&pos) == NUL) return -1; getvcol(curwin, &pos, &col, NULL, NULL); return (int)col; } #if defined(FEAT_LINEBREAK) || defined(PROTO) /* * This is called when 'breakindentopt' is changed and when a window is * initialized. */ int briopt_check(win_T *wp) { char_u *p; int bri_shift = 0; long bri_min = 20; int bri_sbr = FALSE; int bri_list = 0; p = wp->w_p_briopt; while (*p != NUL) { if (STRNCMP(p, "shift:", 6) == 0 && ((p[6] == '-' && VIM_ISDIGIT(p[7])) || VIM_ISDIGIT(p[6]))) { p += 6; bri_shift = getdigits(&p); } else if (STRNCMP(p, "min:", 4) == 0 && VIM_ISDIGIT(p[4])) { p += 4; bri_min = getdigits(&p); } else if (STRNCMP(p, "sbr", 3) == 0) { p += 3; bri_sbr = TRUE; } else if (STRNCMP(p, "list:", 5) == 0) { p += 5; bri_list = getdigits(&p); } if (*p != ',' && *p != NUL) return FAIL; if (*p == ',') ++p; } wp->w_briopt_shift = bri_shift; wp->w_briopt_min = bri_min; wp->w_briopt_sbr = bri_sbr; wp->w_briopt_list = bri_list; return OK; } /* * Return appropriate space number for breakindent, taking influencing * parameters into account. Window must be specified, since it is not * necessarily always the current one. */ int get_breakindent_win( win_T *wp, char_u *line) // start of the line { static int prev_indent = 0; // cached indent value static long prev_ts = 0L; // cached tabstop value static char_u *prev_line = NULL; // cached pointer to line static varnumber_T prev_tick = 0; // changedtick of cached value # ifdef FEAT_VARTABS static int *prev_vts = NULL; // cached vartabs values # endif int bri = 0; // window width minus window margin space, i.e. what rests for text const int eff_wwidth = wp->w_width - ((wp->w_p_nu || wp->w_p_rnu) && (vim_strchr(p_cpo, CPO_NUMCOL) == NULL) ? number_width(wp) + 1 : 0); // used cached indent, unless pointer or 'tabstop' changed if (prev_line != line || prev_ts != wp->w_buffer->b_p_ts || prev_tick != CHANGEDTICK(wp->w_buffer) # ifdef FEAT_VARTABS || prev_vts != wp->w_buffer->b_p_vts_array # endif ) { prev_line = line; prev_ts = wp->w_buffer->b_p_ts; prev_tick = CHANGEDTICK(wp->w_buffer); # ifdef FEAT_VARTABS prev_vts = wp->w_buffer->b_p_vts_array; prev_indent = get_indent_str_vtab(line, (int)wp->w_buffer->b_p_ts, wp->w_buffer->b_p_vts_array, wp->w_p_list); # else prev_indent = get_indent_str(line, (int)wp->w_buffer->b_p_ts, wp->w_p_list); # endif } bri = prev_indent + wp->w_briopt_shift; // Add offset for number column, if 'n' is in 'cpoptions' bri += win_col_off2(wp); // add additional indent for numbered lists if (wp->w_briopt_list != 0) { regmatch_T regmatch; regmatch.regprog = vim_regcomp(curbuf->b_p_flp, RE_MAGIC + RE_STRING + RE_AUTO + RE_STRICT); if (regmatch.regprog != NULL) { if (vim_regexec(®match, line, 0)) { if (wp->w_briopt_list > 0) bri += wp->w_briopt_list; else bri = (*regmatch.endp - *regmatch.startp); } vim_regfree(regmatch.regprog); } } // indent minus the length of the showbreak string if (wp->w_briopt_sbr) bri -= vim_strsize(get_showbreak_value(wp)); // never indent past left window margin if (bri < 0) bri = 0; // always leave at least bri_min characters on the left, // if text width is sufficient else if (bri > eff_wwidth - wp->w_briopt_min) bri = (eff_wwidth - wp->w_briopt_min < 0) ? 0 : eff_wwidth - wp->w_briopt_min; return bri; } #endif /* * When extra == 0: Return TRUE if the cursor is before or on the first * non-blank in the line. * When extra == 1: Return TRUE if the cursor is before the first non-blank in * the line. */ int inindent(int extra) { char_u *ptr; colnr_T col; for (col = 0, ptr = ml_get_curline(); VIM_ISWHITE(*ptr); ++col) ++ptr; if (col >= curwin->w_cursor.col + extra) return TRUE; else return FALSE; } #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(PROTO) /* * op_reindent - handle reindenting a block of lines. */ void op_reindent(oparg_T *oap, int (*how)(void)) { long i; char_u *l; int amount; linenr_T first_changed = 0; linenr_T last_changed = 0; linenr_T start_lnum = curwin->w_cursor.lnum; // Don't even try when 'modifiable' is off. if (!curbuf->b_p_ma) { emsg(_(e_cannot_make_changes_modifiable_is_off)); return; } for (i = oap->line_count; --i >= 0 && !got_int; ) { // it's a slow thing to do, so give feedback so there's no worry that // the computer's just hung. if (i > 1 && (i % 50 == 0 || i == oap->line_count - 1) && oap->line_count > p_report) smsg(_("%ld lines to indent... "), i); // Be vi-compatible: For lisp indenting the first line is not // indented, unless there is only one line. # ifdef FEAT_LISP if (i != oap->line_count - 1 || oap->line_count == 1 || how != get_lisp_indent) # endif { l = skipwhite(ml_get_curline()); if (*l == NUL) // empty or blank line amount = 0; else amount = how(); // get the indent for this line if (amount >= 0 && set_indent(amount, SIN_UNDO)) { // did change the indent, call changed_lines() later if (first_changed == 0) first_changed = curwin->w_cursor.lnum; last_changed = curwin->w_cursor.lnum; } } ++curwin->w_cursor.lnum; curwin->w_cursor.col = 0; // make sure it's valid } // put cursor on first non-blank of indented line curwin->w_cursor.lnum = start_lnum; beginline(BL_SOL | BL_FIX); // Mark changed lines so that they will be redrawn. When Visual // highlighting was present, need to continue until the last line. When // there is no change still need to remove the Visual highlighting. if (last_changed != 0) changed_lines(first_changed, 0, oap->is_VIsual ? start_lnum + oap->line_count : last_changed + 1, 0L); else if (oap->is_VIsual) redraw_curbuf_later(INVERTED); if (oap->line_count > p_report) { i = oap->line_count - (i + 1); smsg(NGETTEXT("%ld line indented ", "%ld lines indented ", i), i); } if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0) { // set '[ and '] marks curbuf->b_op_start = oap->start; curbuf->b_op_end = oap->end; } } #endif // defined(FEAT_LISP) || defined(FEAT_CINDENT) #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT) || defined(PROTO) /* * Return TRUE if lines starting with '#' should be left aligned. */ int preprocs_left(void) { return # ifdef FEAT_SMARTINDENT # ifdef FEAT_CINDENT (curbuf->b_p_si && !curbuf->b_p_cin) || # else curbuf->b_p_si # endif # endif # ifdef FEAT_CINDENT (curbuf->b_p_cin && in_cinkeys('#', ' ', TRUE) && curbuf->b_ind_hash_comment == 0) # endif ; } #endif #ifdef FEAT_SMARTINDENT /* * Try to do some very smart auto-indenting. * Used when inserting a "normal" character. */ void ins_try_si(int c) { pos_T *pos, old_pos; char_u *ptr; int i; int temp; // do some very smart indenting when entering '{' or '}' if (((did_si || can_si_back) && c == '{') || (can_si && c == '}')) { // for '}' set indent equal to indent of line containing matching '{' if (c == '}' && (pos = findmatch(NULL, '{')) != NULL) { old_pos = curwin->w_cursor; // If the matching '{' has a ')' immediately before it (ignoring // white-space), then line up with the start of the line // containing the matching '(' if there is one. This handles the // case where an "if (..\n..) {" statement continues over multiple // lines -- webb ptr = ml_get(pos->lnum); i = pos->col; if (i > 0) // skip blanks before '{' while (--i > 0 && VIM_ISWHITE(ptr[i])) ; curwin->w_cursor.lnum = pos->lnum; curwin->w_cursor.col = i; if (ptr[i] == ')' && (pos = findmatch(NULL, '(')) != NULL) curwin->w_cursor = *pos; i = get_indent(); curwin->w_cursor = old_pos; if (State & VREPLACE_FLAG) change_indent(INDENT_SET, i, FALSE, NUL, TRUE); else (void)set_indent(i, SIN_CHANGED); } else if (curwin->w_cursor.col > 0) { // when inserting '{' after "O" reduce indent, but not // more than indent of previous line temp = TRUE; if (c == '{' && can_si_back && curwin->w_cursor.lnum > 1) { old_pos = curwin->w_cursor; i = get_indent(); while (curwin->w_cursor.lnum > 1) { ptr = skipwhite(ml_get(--(curwin->w_cursor.lnum))); // ignore empty lines and lines starting with '#'. if (*ptr != '#' && *ptr != NUL) break; } if (get_indent() >= i) temp = FALSE; curwin->w_cursor = old_pos; } if (temp) shift_line(TRUE, FALSE, 1, TRUE); } } // set indent of '#' always to 0 if (curwin->w_cursor.col > 0 && can_si && c == '#') { // remember current indent for next line old_indent = get_indent(); (void)set_indent(0, SIN_CHANGED); } // Adjust ai_col, the char at this position can be deleted. if (ai_col > curwin->w_cursor.col) ai_col = curwin->w_cursor.col; } #endif /* * Insert an indent (for <Tab> or CTRL-T) or delete an indent (for CTRL-D). * Keep the cursor on the same character. * type == INDENT_INC increase indent (for CTRL-T or <Tab>) * type == INDENT_DEC decrease indent (for CTRL-D) * type == INDENT_SET set indent to "amount" * if round is TRUE, round the indent to 'shiftwidth' (only with _INC and _Dec). */ void change_indent( int type, int amount, int round, int replaced, // replaced character, put on replace stack int call_changed_bytes) // call changed_bytes() { int vcol; int last_vcol; int insstart_less; // reduction for Insstart.col int new_cursor_col; int i; char_u *ptr; int save_p_list; int start_col; colnr_T vc; colnr_T orig_col = 0; // init for GCC char_u *new_line, *orig_line = NULL; // init for GCC // VREPLACE mode needs to know what the line was like before changing if (State & VREPLACE_FLAG) { orig_line = vim_strsave(ml_get_curline()); // Deal with NULL below orig_col = curwin->w_cursor.col; } // for the following tricks we don't want list mode save_p_list = curwin->w_p_list; curwin->w_p_list = FALSE; vc = getvcol_nolist(&curwin->w_cursor); vcol = vc; // For Replace mode we need to fix the replace stack later, which is only // possible when the cursor is in the indent. Remember the number of // characters before the cursor if it's possible. start_col = curwin->w_cursor.col; // determine offset from first non-blank new_cursor_col = curwin->w_cursor.col; beginline(BL_WHITE); new_cursor_col -= curwin->w_cursor.col; insstart_less = curwin->w_cursor.col; // If the cursor is in the indent, compute how many screen columns the // cursor is to the left of the first non-blank. if (new_cursor_col < 0) vcol = get_indent() - vcol; if (new_cursor_col > 0) // can't fix replace stack start_col = -1; // Set the new indent. The cursor will be put on the first non-blank. if (type == INDENT_SET) (void)set_indent(amount, call_changed_bytes ? SIN_CHANGED : 0); else { int save_State = State; // Avoid being called recursively. if (State & VREPLACE_FLAG) State = INSERT; shift_line(type == INDENT_DEC, round, 1, call_changed_bytes); State = save_State; } insstart_less -= curwin->w_cursor.col; // Try to put cursor on same character. // If the cursor is at or after the first non-blank in the line, // compute the cursor column relative to the column of the first // non-blank character. // If we are not in insert mode, leave the cursor on the first non-blank. // If the cursor is before the first non-blank, position it relative // to the first non-blank, counted in screen columns. if (new_cursor_col >= 0) { // When changing the indent while the cursor is touching it, reset // Insstart_col to 0. if (new_cursor_col == 0) insstart_less = MAXCOL; new_cursor_col += curwin->w_cursor.col; } else if (!(State & INSERT)) new_cursor_col = curwin->w_cursor.col; else { // Compute the screen column where the cursor should be. vcol = get_indent() - vcol; curwin->w_virtcol = (colnr_T)((vcol < 0) ? 0 : vcol); // Advance the cursor until we reach the right screen column. vcol = last_vcol = 0; new_cursor_col = -1; ptr = ml_get_curline(); while (vcol <= (int)curwin->w_virtcol) { last_vcol = vcol; if (has_mbyte && new_cursor_col >= 0) new_cursor_col += (*mb_ptr2len)(ptr + new_cursor_col); else ++new_cursor_col; vcol += lbr_chartabsize(ptr, ptr + new_cursor_col, (colnr_T)vcol); } vcol = last_vcol; // May need to insert spaces to be able to position the cursor on // the right screen column. if (vcol != (int)curwin->w_virtcol) { curwin->w_cursor.col = (colnr_T)new_cursor_col; i = (int)curwin->w_virtcol - vcol; ptr = alloc(i + 1); if (ptr != NULL) { new_cursor_col += i; ptr[i] = NUL; while (--i >= 0) ptr[i] = ' '; ins_str(ptr); vim_free(ptr); } } // When changing the indent while the cursor is in it, reset // Insstart_col to 0. insstart_less = MAXCOL; } curwin->w_p_list = save_p_list; if (new_cursor_col <= 0) curwin->w_cursor.col = 0; else curwin->w_cursor.col = (colnr_T)new_cursor_col; curwin->w_set_curswant = TRUE; changed_cline_bef_curs(); // May have to adjust the start of the insert. if (State & INSERT) { if (curwin->w_cursor.lnum == Insstart.lnum && Insstart.col != 0) { if ((int)Insstart.col <= insstart_less) Insstart.col = 0; else Insstart.col -= insstart_less; } if ((int)ai_col <= insstart_less) ai_col = 0; else ai_col -= insstart_less; } // For REPLACE mode, may have to fix the replace stack, if it's possible. // If the number of characters before the cursor decreased, need to pop a // few characters from the replace stack. // If the number of characters before the cursor increased, need to push a // few NULs onto the replace stack. if (REPLACE_NORMAL(State) && start_col >= 0) { while (start_col > (int)curwin->w_cursor.col) { replace_join(0); // remove a NUL from the replace stack --start_col; } while (start_col < (int)curwin->w_cursor.col || replaced) { replace_push(NUL); if (replaced) { replace_push(replaced); replaced = NUL; } ++start_col; } } // For VREPLACE mode, we also have to fix the replace stack. In this case // it is always possible because we backspace over the whole line and then // put it back again the way we wanted it. if (State & VREPLACE_FLAG) { // If orig_line didn't allocate, just return. At least we did the job, // even if you can't backspace. if (orig_line == NULL) return; // Save new line new_line = vim_strsave(ml_get_curline()); if (new_line == NULL) return; // We only put back the new line up to the cursor new_line[curwin->w_cursor.col] = NUL; // Put back original line ml_replace(curwin->w_cursor.lnum, orig_line, FALSE); curwin->w_cursor.col = orig_col; // Backspace from cursor to start of line backspace_until_column(0); // Insert new stuff into line again ins_bytes(new_line); vim_free(new_line); } } /* * Copy the indent from ptr to the current line (and fill to size) * Leaves the cursor on the first non-blank in the line. * Returns TRUE if the line was changed. */ int copy_indent(int size, char_u *src) { char_u *p = NULL; char_u *line = NULL; char_u *s; int todo; int ind_len; int line_len = 0; int tab_pad; int ind_done; int round; #ifdef FEAT_VARTABS int ind_col; #endif // Round 1: compute the number of characters needed for the indent // Round 2: copy the characters. for (round = 1; round <= 2; ++round) { todo = size; ind_len = 0; ind_done = 0; #ifdef FEAT_VARTABS ind_col = 0; #endif s = src; // Count/copy the usable portion of the source line while (todo > 0 && VIM_ISWHITE(*s)) { if (*s == TAB) { #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif // Stop if this tab will overshoot the target if (todo < tab_pad) break; todo -= tab_pad; ind_done += tab_pad; #ifdef FEAT_VARTABS ind_col += tab_pad; #endif } else { --todo; ++ind_done; #ifdef FEAT_VARTABS ++ind_col; #endif } ++ind_len; if (p != NULL) *p++ = *s; ++s; } // Fill to next tabstop with a tab, if possible #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif if (todo >= tab_pad && !curbuf->b_p_et) { todo -= tab_pad; ++ind_len; #ifdef FEAT_VARTABS ind_col += tab_pad; #endif if (p != NULL) *p++ = TAB; } // Add tabs required for indent if (!curbuf->b_p_et) { #ifdef FEAT_VARTABS for (;;) { tab_pad = tabstop_padding(ind_col, curbuf->b_p_ts, curbuf->b_p_vts_array); if (todo < tab_pad) break; todo -= tab_pad; ++ind_len; ind_col += tab_pad; if (p != NULL) *p++ = TAB; } #else while (todo >= (int)curbuf->b_p_ts) { todo -= (int)curbuf->b_p_ts; ++ind_len; if (p != NULL) *p++ = TAB; } #endif } // Count/add spaces required for indent while (todo > 0) { --todo; ++ind_len; if (p != NULL) *p++ = ' '; } if (p == NULL) { // Allocate memory for the result: the copied indent, new indent // and the rest of the line. line_len = (int)STRLEN(ml_get_curline()) + 1; line = alloc(ind_len + line_len); if (line == NULL) return FALSE; p = line; } } // Append the original line mch_memmove(p, ml_get_curline(), (size_t)line_len); // Replace the line ml_replace(curwin->w_cursor.lnum, line, FALSE); // Put the cursor after the indent. curwin->w_cursor.col = ind_len; return TRUE; } /* * ":retab". */ void ex_retab(exarg_T *eap) { linenr_T lnum; int got_tab = FALSE; long num_spaces = 0; long num_tabs; long len; long col; long vcol; long start_col = 0; // For start of white-space string long start_vcol = 0; // For start of white-space string long old_len; char_u *ptr; char_u *new_line = (char_u *)1; // init to non-NULL int did_undo; // called u_save for current line #ifdef FEAT_VARTABS int *new_vts_array = NULL; char_u *new_ts_str; // string value of tab argument #else int temp; int new_ts; #endif int save_list; linenr_T first_line = 0; // first changed line linenr_T last_line = 0; // last changed line save_list = curwin->w_p_list; curwin->w_p_list = 0; // don't want list mode here #ifdef FEAT_VARTABS new_ts_str = eap->arg; if (!tabstop_set(eap->arg, &new_vts_array)) return; while (vim_isdigit(*(eap->arg)) || *(eap->arg) == ',') ++(eap->arg); // This ensures that either new_vts_array and new_ts_str are freshly // allocated, or new_vts_array points to an existing array and new_ts_str // is null. if (new_vts_array == NULL) { new_vts_array = curbuf->b_p_vts_array; new_ts_str = NULL; } else new_ts_str = vim_strnsave(new_ts_str, eap->arg - new_ts_str); #else new_ts = getdigits(&(eap->arg)); if (new_ts < 0) { emsg(_(e_positive)); return; } if (new_ts == 0) new_ts = curbuf->b_p_ts; #endif for (lnum = eap->line1; !got_int && lnum <= eap->line2; ++lnum) { ptr = ml_get(lnum); col = 0; vcol = 0; did_undo = FALSE; for (;;) { if (VIM_ISWHITE(ptr[col])) { if (!got_tab && num_spaces == 0) { // First consecutive white-space start_vcol = vcol; start_col = col; } if (ptr[col] == ' ') num_spaces++; else got_tab = TRUE; } else { if (got_tab || (eap->forceit && num_spaces > 1)) { // Retabulate this string of white-space // len is virtual length of white string len = num_spaces = vcol - start_vcol; num_tabs = 0; if (!curbuf->b_p_et) { #ifdef FEAT_VARTABS int t, s; tabstop_fromto(start_vcol, vcol, curbuf->b_p_ts, new_vts_array, &t, &s); num_tabs = t; num_spaces = s; #else temp = new_ts - (start_vcol % new_ts); if (num_spaces >= temp) { num_spaces -= temp; num_tabs++; } num_tabs += num_spaces / new_ts; num_spaces -= (num_spaces / new_ts) * new_ts; #endif } if (curbuf->b_p_et || got_tab || (num_spaces + num_tabs < len)) { if (did_undo == FALSE) { did_undo = TRUE; if (u_save((linenr_T)(lnum - 1), (linenr_T)(lnum + 1)) == FAIL) { new_line = NULL; // flag out-of-memory break; } } // len is actual number of white characters used len = num_spaces + num_tabs; old_len = (long)STRLEN(ptr); new_line = alloc(old_len - col + start_col + len + 1); if (new_line == NULL) break; if (start_col > 0) mch_memmove(new_line, ptr, (size_t)start_col); mch_memmove(new_line + start_col + len, ptr + col, (size_t)(old_len - col + 1)); ptr = new_line + start_col; for (col = 0; col < len; col++) ptr[col] = (col < num_tabs) ? '\t' : ' '; if (ml_replace(lnum, new_line, FALSE) == OK) // "new_line" may have been copied new_line = curbuf->b_ml.ml_line_ptr; if (first_line == 0) first_line = lnum; last_line = lnum; ptr = new_line; col = start_col + len; } } got_tab = FALSE; num_spaces = 0; } if (ptr[col] == NUL) break; vcol += chartabsize(ptr + col, (colnr_T)vcol); if (has_mbyte) col += (*mb_ptr2len)(ptr + col); else ++col; } if (new_line == NULL) // out of memory break; line_breakcheck(); } if (got_int) emsg(_(e_interr)); #ifdef FEAT_VARTABS // If a single value was given then it can be considered equal to // either the value of 'tabstop' or the value of 'vartabstop'. if (tabstop_count(curbuf->b_p_vts_array) == 0 && tabstop_count(new_vts_array) == 1 && curbuf->b_p_ts == tabstop_first(new_vts_array)) ; // not changed else if (tabstop_count(curbuf->b_p_vts_array) > 0 && tabstop_eq(curbuf->b_p_vts_array, new_vts_array)) ; // not changed else redraw_curbuf_later(NOT_VALID); #else if (curbuf->b_p_ts != new_ts) redraw_curbuf_later(NOT_VALID); #endif if (first_line != 0) changed_lines(first_line, 0, last_line + 1, 0L); curwin->w_p_list = save_list; // restore 'list' #ifdef FEAT_VARTABS if (new_ts_str != NULL) // set the new tabstop { // If 'vartabstop' is in use or if the value given to retab has more // than one tabstop then update 'vartabstop'. int *old_vts_ary = curbuf->b_p_vts_array; if (tabstop_count(old_vts_ary) > 0 || tabstop_count(new_vts_array) > 1) { set_string_option_direct((char_u *)"vts", -1, new_ts_str, OPT_FREE|OPT_LOCAL, 0); curbuf->b_p_vts_array = new_vts_array; vim_free(old_vts_ary); } else { // 'vartabstop' wasn't in use and a single value was given to // retab then update 'tabstop'. curbuf->b_p_ts = tabstop_first(new_vts_array); vim_free(new_vts_array); } vim_free(new_ts_str); } #else curbuf->b_p_ts = new_ts; #endif coladvance(curwin->w_curswant); u_clearline(); } #if (defined(FEAT_CINDENT) && defined(FEAT_EVAL)) || defined(PROTO) /* * Get indent level from 'indentexpr'. */ int get_expr_indent(void) { int indent = -1; char_u *inde_copy; pos_T save_pos; colnr_T save_curswant; int save_set_curswant; int save_State; int use_sandbox = was_set_insecurely((char_u *)"indentexpr", OPT_LOCAL); // Save and restore cursor position and curswant, in case it was changed // via :normal commands save_pos = curwin->w_cursor; save_curswant = curwin->w_curswant; save_set_curswant = curwin->w_set_curswant; set_vim_var_nr(VV_LNUM, curwin->w_cursor.lnum); if (use_sandbox) ++sandbox; ++textwinlock; // Need to make a copy, the 'indentexpr' option could be changed while // evaluating it. inde_copy = vim_strsave(curbuf->b_p_inde); if (inde_copy != NULL) { indent = (int)eval_to_number(inde_copy); vim_free(inde_copy); } if (use_sandbox) --sandbox; --textwinlock; // Restore the cursor position so that 'indentexpr' doesn't need to. // Pretend to be in Insert mode, allow cursor past end of line for "o" // command. save_State = State; State = INSERT; curwin->w_cursor = save_pos; curwin->w_curswant = save_curswant; curwin->w_set_curswant = save_set_curswant; check_cursor(); State = save_State; // Reset did_throw, unless 'debug' has "throw" and inside a try/catch. if (did_throw && (vim_strchr(p_debug, 't') == NULL || trylevel == 0)) { handle_did_throw(); did_throw = FALSE; } // If there is an error, just keep the current indent. if (indent < 0) indent = get_indent(); return indent; } #endif #if defined(FEAT_LISP) || defined(PROTO) static int lisp_match(char_u *p) { char_u buf[LSIZE]; int len; char_u *word = *curbuf->b_p_lw != NUL ? curbuf->b_p_lw : p_lispwords; while (*word != NUL) { (void)copy_option_part(&word, buf, LSIZE, ","); len = (int)STRLEN(buf); if (STRNCMP(buf, p, len) == 0 && p[len] == ' ') return TRUE; } return FALSE; } /* * When 'p' is present in 'cpoptions, a Vi compatible method is used. * The incompatible newer method is quite a bit better at indenting * code in lisp-like languages than the traditional one; it's still * mostly heuristics however -- Dirk van Deun, dirk@rave.org * * TODO: * Findmatch() should be adapted for lisp, also to make showmatch * work correctly: now (v5.3) it seems all C/C++ oriented: * - it does not recognize the #\( and #\) notations as character literals * - it doesn't know about comments starting with a semicolon * - it incorrectly interprets '(' as a character literal * All this messes up get_lisp_indent in some rare cases. * Update from Sergey Khorev: * I tried to fix the first two issues. */ int get_lisp_indent(void) { pos_T *pos, realpos, paren; int amount; char_u *that; colnr_T col; colnr_T firsttry; int parencount, quotecount; int vi_lisp; // Set vi_lisp to use the vi-compatible method vi_lisp = (vim_strchr(p_cpo, CPO_LISP) != NULL); realpos = curwin->w_cursor; curwin->w_cursor.col = 0; if ((pos = findmatch(NULL, '(')) == NULL) pos = findmatch(NULL, '['); else { paren = *pos; pos = findmatch(NULL, '['); if (pos == NULL || LT_POSP(pos, &paren)) pos = &paren; } if (pos != NULL) { // Extra trick: Take the indent of the first previous non-white // line that is at the same () level. amount = -1; parencount = 0; while (--curwin->w_cursor.lnum >= pos->lnum) { if (linewhite(curwin->w_cursor.lnum)) continue; for (that = ml_get_curline(); *that != NUL; ++that) { if (*that == ';') { while (*(that + 1) != NUL) ++that; continue; } if (*that == '\\') { if (*(that + 1) != NUL) ++that; continue; } if (*that == '"' && *(that + 1) != NUL) { while (*++that && *that != '"') { // skipping escaped characters in the string if (*that == '\\') { if (*++that == NUL) break; if (that[1] == NUL) { ++that; break; } } } } if (*that == '(' || *that == '[') ++parencount; else if (*that == ')' || *that == ']') --parencount; } if (parencount == 0) { amount = get_indent(); break; } } if (amount == -1) { curwin->w_cursor.lnum = pos->lnum; curwin->w_cursor.col = pos->col; col = pos->col; that = ml_get_curline(); if (vi_lisp && get_indent() == 0) amount = 2; else { char_u *line = that; amount = 0; while (*that && col) { amount += lbr_chartabsize_adv(line, &that, (colnr_T)amount); col--; } // Some keywords require "body" indenting rules (the // non-standard-lisp ones are Scheme special forms): // // (let ((a 1)) instead (let ((a 1)) // (...)) of (...)) if (!vi_lisp && (*that == '(' || *that == '[') && lisp_match(that + 1)) amount += 2; else { that++; amount++; firsttry = amount; while (VIM_ISWHITE(*that)) { amount += lbr_chartabsize(line, that, (colnr_T)amount); ++that; } if (*that && *that != ';') // not a comment line { // test *that != '(' to accommodate first let/do // argument if it is more than one line if (!vi_lisp && *that != '(' && *that != '[') firsttry++; parencount = 0; quotecount = 0; if (vi_lisp || (*that != '"' && *that != '\'' && *that != '#' && (*that < '0' || *that > '9'))) { while (*that && (!VIM_ISWHITE(*that) || quotecount || parencount) && (!((*that == '(' || *that == '[') && !quotecount && !parencount && vi_lisp))) { if (*that == '"') quotecount = !quotecount; if ((*that == '(' || *that == '[') && !quotecount) ++parencount; if ((*that == ')' || *that == ']') && !quotecount) --parencount; if (*that == '\\' && *(that+1) != NUL) amount += lbr_chartabsize_adv( line, &that, (colnr_T)amount); amount += lbr_chartabsize_adv( line, &that, (colnr_T)amount); } } while (VIM_ISWHITE(*that)) { amount += lbr_chartabsize( line, that, (colnr_T)amount); that++; } if (!*that || *that == ';') amount = firsttry; } } } } } else amount = 0; // no matching '(' or '[' found, use zero indent curwin->w_cursor = realpos; return amount; } #endif // FEAT_LISP #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(PROTO) /* * Re-indent the current line, based on the current contents of it and the * surrounding lines. Fixing the cursor position seems really easy -- I'm very * confused what all the part that handles Control-T is doing that I'm not. * "get_the_indent" should be get_c_indent, get_expr_indent or get_lisp_indent. */ void fixthisline(int (*get_the_indent)(void)) { int amount = get_the_indent(); if (amount >= 0) { change_indent(INDENT_SET, amount, FALSE, 0, TRUE); if (linewhite(curwin->w_cursor.lnum)) did_ai = TRUE; // delete the indent if the line stays empty } } void fix_indent(void) { if (p_paste) return; # ifdef FEAT_LISP if (curbuf->b_p_lisp && curbuf->b_p_ai) fixthisline(get_lisp_indent); # endif # if defined(FEAT_LISP) && defined(FEAT_CINDENT) else # endif # ifdef FEAT_CINDENT if (cindent_on()) do_c_expr_indent(); # endif } #endif #if defined(FEAT_EVAL) || defined(PROTO) /* * "indent()" function */ void f_indent(typval_T *argvars, typval_T *rettv) { linenr_T lnum; if (in_vim9script() && check_for_lnum_arg(argvars, 0) == FAIL) return; lnum = tv_get_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) rettv->vval.v_number = get_indent_lnum(lnum); else rettv->vval.v_number = -1; } /* * "lispindent(lnum)" function */ void f_lispindent(typval_T *argvars UNUSED, typval_T *rettv) { #ifdef FEAT_LISP pos_T pos; linenr_T lnum; if (in_vim9script() && check_for_lnum_arg(argvars, 0) == FAIL) return; pos = curwin->w_cursor; lnum = tv_get_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { curwin->w_cursor.lnum = lnum; rettv->vval.v_number = get_lisp_indent(); curwin->w_cursor = pos; } else #endif rettv->vval.v_number = -1; } #endif