diff options
Diffstat (limited to 'src/nvim/search.c')
-rw-r--r-- | src/nvim/search.c | 1802 |
1 files changed, 0 insertions, 1802 deletions
diff --git a/src/nvim/search.c b/src/nvim/search.c index 190ad72a8f..892d531633 100644 --- a/src/nvim/search.c +++ b/src/nvim/search.c @@ -2444,1808 +2444,6 @@ void showmatch(int c) } } -// Find the start of the next sentence, searching in the direction specified -// by the "dir" argument. The cursor is positioned on the start of the next -// sentence when found. If the next sentence is found, return OK. Return FAIL -// otherwise. See ":h sentence" for the precise definition of a "sentence" -// text object. -int findsent(Direction dir, long count) -{ - pos_T pos, tpos; - int c; - int (*func)(pos_T *); - bool noskip = false; // do not skip blanks - - pos = curwin->w_cursor; - if (dir == FORWARD) { - func = incl; - } else { - func = decl; - } - - while (count--) { - const pos_T prev_pos = pos; - - // if on an empty line, skip up to a non-empty line - if (gchar_pos(&pos) == NUL) { - do { - if ((*func)(&pos) == -1) { - break; - } - } while (gchar_pos(&pos) == NUL); - if (dir == FORWARD) { - goto found; - } - // if on the start of a paragraph or a section and searching forward, - // go to the next line - } else if (dir == FORWARD && pos.col == 0 - && startPS(pos.lnum, NUL, false)) { - if (pos.lnum == curbuf->b_ml.ml_line_count) { - return FAIL; - } - pos.lnum++; - goto found; - } else if (dir == BACKWARD) { - decl(&pos); - } - - // go back to the previous non-white non-punctuation character - bool found_dot = false; - while (c = gchar_pos(&pos), ascii_iswhite(c) - || vim_strchr(".!?)]\"'", c) != NULL) { - tpos = pos; - if (decl(&tpos) == -1 || (LINEEMPTY(tpos.lnum) && dir == FORWARD)) { - break; - } - if (found_dot) { - break; - } - if (vim_strchr(".!?", c) != NULL) { - found_dot = true; - } - if (vim_strchr(")]\"'", c) != NULL - && vim_strchr(".!?)]\"'", gchar_pos(&tpos)) == NULL) { - break; - } - decl(&pos); - } - - // remember the line where the search started - const int startlnum = pos.lnum; - const bool cpo_J = vim_strchr(p_cpo, CPO_ENDOFSENT) != NULL; - - for (;;) { // find end of sentence - c = gchar_pos(&pos); - if (c == NUL || (pos.col == 0 && startPS(pos.lnum, NUL, false))) { - if (dir == BACKWARD && pos.lnum != startlnum) { - pos.lnum++; - } - break; - } - if (c == '.' || c == '!' || c == '?') { - tpos = pos; - do { - if ((c = inc(&tpos)) == -1) { - break; - } - } while (vim_strchr(")]\"'", c = gchar_pos(&tpos)) - != NULL); - if (c == -1 || (!cpo_J && (c == ' ' || c == '\t')) || c == NUL - || (cpo_J && (c == ' ' && inc(&tpos) >= 0 - && gchar_pos(&tpos) == ' '))) { - pos = tpos; - if (gchar_pos(&pos) == NUL) { // skip NUL at EOL - inc(&pos); - } - break; - } - } - if ((*func)(&pos) == -1) { - if (count) { - return FAIL; - } - noskip = true; - break; - } - } -found: - // skip white space - while (!noskip && ((c = gchar_pos(&pos)) == ' ' || c == '\t')) { - if (incl(&pos) == -1) { - break; - } - } - - if (equalpos(prev_pos, pos)) { - // didn't actually move, advance one character and try again - if ((*func)(&pos) == -1) { - if (count) { - return FAIL; - } - break; - } - count++; - } - } - - setpcmark(); - curwin->w_cursor = pos; - return OK; -} - -/// Find the next paragraph or section in direction 'dir'. -/// Paragraphs are currently supposed to be separated by empty lines. -/// If 'what' is NUL we go to the next paragraph. -/// If 'what' is '{' or '}' we go to the next section. -/// If 'both' is true also stop at '}'. -/// -/// @param pincl Return: true if last char is to be included -/// -/// @return true if the next paragraph or section was found. -bool findpar(bool *pincl, int dir, long count, int what, int both) -{ - linenr_T curr; - bool did_skip; // true after separating lines have been skipped - bool first; // true on first line - linenr_T fold_first; // first line of a closed fold - linenr_T fold_last; // last line of a closed fold - bool fold_skipped; // true if a closed fold was skipped this - // iteration - - curr = curwin->w_cursor.lnum; - - while (count--) { - did_skip = false; - for (first = true;; first = false) { - if (*ml_get(curr) != NUL) { - did_skip = true; - } - - // skip folded lines - fold_skipped = false; - if (first && hasFolding(curr, &fold_first, &fold_last)) { - curr = ((dir > 0) ? fold_last : fold_first) + dir; - fold_skipped = true; - } - - if (!first && did_skip && startPS(curr, what, both)) { - break; - } - - if (fold_skipped) { - curr -= dir; - } - if ((curr += dir) < 1 || curr > curbuf->b_ml.ml_line_count) { - if (count) { - return false; - } - curr -= dir; - break; - } - } - } - setpcmark(); - if (both && *ml_get(curr) == '}') { // include line with '}' - curr++; - } - curwin->w_cursor.lnum = curr; - if (curr == curbuf->b_ml.ml_line_count && what != '}') { - char_u *line = ml_get(curr); - - // Put the cursor on the last character in the last line and make the - // motion inclusive. - if ((curwin->w_cursor.col = (colnr_T)STRLEN(line)) != 0) { - curwin->w_cursor.col--; - curwin->w_cursor.col -= utf_head_off(line, line + curwin->w_cursor.col); - *pincl = true; - } - } else { - curwin->w_cursor.col = 0; - } - return true; -} - -/* - * check if the string 's' is a nroff macro that is in option 'opt' - */ -static int inmacro(char_u *opt, char_u *s) -{ - char_u *macro; - - for (macro = opt; macro[0]; macro++) { - // Accept two characters in the option being equal to two characters - // in the line. A space in the option matches with a space in the - // line or the line having ended. - if ((macro[0] == s[0] - || (macro[0] == ' ' - && (s[0] == NUL || s[0] == ' '))) - && (macro[1] == s[1] - || ((macro[1] == NUL || macro[1] == ' ') - && (s[0] == NUL || s[1] == NUL || s[1] == ' ')))) { - break; - } - macro++; - if (macro[0] == NUL) { - break; - } - } - return macro[0] != NUL; -} - -/// startPS: return true if line 'lnum' is the start of a section or paragraph. -/// If 'para' is '{' or '}' only check for sections. -/// If 'both' is true also stop at '}' -int startPS(linenr_T lnum, int para, int both) -{ - char_u *s; - - s = ml_get(lnum); - if (*s == para || *s == '\f' || (both && *s == '}')) { - return true; - } - if (*s == '.' && (inmacro((char_u *)p_sections, s + 1) - || (!para && inmacro(p_para, s + 1)))) { - return true; - } - return false; -} - -/* - * The following routines do the word searches performed by the 'w', 'W', - * 'b', 'B', 'e', and 'E' commands. - */ - -/* - * To perform these searches, characters are placed into one of three - * classes, and transitions between classes determine word boundaries. - * - * The classes are: - * - * 0 - white space - * 1 - punctuation - * 2 or higher - keyword characters (letters, digits and underscore) - */ - -static int cls_bigword; // true for "W", "B" or "E" - -/* - * cls() - returns the class of character at curwin->w_cursor - * - * If a 'W', 'B', or 'E' motion is being done (cls_bigword == true), chars - * from class 2 and higher are reported as class 1 since only white space - * boundaries are of interest. - */ -static int cls(void) -{ - int c; - - c = gchar_cursor(); - if (c == ' ' || c == '\t' || c == NUL) { - return 0; - } - - c = utf_class(c); - - // If cls_bigword is true, report all non-blanks as class 1. - if (c != 0 && cls_bigword) { - return 1; - } - return c; -} - -/// fwd_word(count, type, eol) - move forward one word -/// -/// @return FAIL if the cursor was already at the end of the file. -/// If eol is true, last word stops at end of line (for operators). -/// -/// @param bigword "W", "E" or "B" -int fwd_word(long count, int bigword, int eol) -{ - int sclass; // starting class - int i; - int last_line; - - curwin->w_cursor.coladd = 0; - cls_bigword = bigword; - while (--count >= 0) { - // When inside a range of folded lines, move to the last char of the - // last line. - if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum)) { - coladvance(MAXCOL); - } - sclass = cls(); - - /* - * We always move at least one character, unless on the last - * character in the buffer. - */ - last_line = (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count); - i = inc_cursor(); - if (i == -1 || (i >= 1 && last_line)) { // started at last char in file - return FAIL; - } - if (i >= 1 && eol && count == 0) { // started at last char in line - return OK; - } - - /* - * Go one char past end of current word (if any) - */ - if (sclass != 0) { - while (cls() == sclass) { - i = inc_cursor(); - if (i == -1 || (i >= 1 && eol && count == 0)) { - return OK; - } - } - } - - /* - * go to next non-white - */ - while (cls() == 0) { - /* - * We'll stop if we land on a blank line - */ - if (curwin->w_cursor.col == 0 && *get_cursor_line_ptr() == NUL) { - break; - } - - i = inc_cursor(); - if (i == -1 || (i >= 1 && eol && count == 0)) { - return OK; - } - } - } - return OK; -} - -/* - * bck_word() - move backward 'count' words - * - * If stop is true and we are already on the start of a word, move one less. - * - * Returns FAIL if top of the file was reached. - */ -int bck_word(long count, int bigword, int stop) -{ - int sclass; // starting class - - curwin->w_cursor.coladd = 0; - cls_bigword = bigword; - while (--count >= 0) { - /* When inside a range of folded lines, move to the first char of the - * first line. */ - if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL)) { - curwin->w_cursor.col = 0; - } - sclass = cls(); - if (dec_cursor() == -1) { // started at start of file - return FAIL; - } - - if (!stop || sclass == cls() || sclass == 0) { - /* - * Skip white space before the word. - * Stop on an empty line. - */ - while (cls() == 0) { - if (curwin->w_cursor.col == 0 - && LINEEMPTY(curwin->w_cursor.lnum)) { - goto finished; - } - if (dec_cursor() == -1) { // hit start of file, stop here - return OK; - } - } - - /* - * Move backward to start of this word. - */ - if (skip_chars(cls(), BACKWARD)) { - return OK; - } - } - - inc_cursor(); // overshot - forward one -finished: - stop = false; - } - return OK; -} - -/* - * end_word() - move to the end of the word - * - * There is an apparent bug in the 'e' motion of the real vi. At least on the - * System V Release 3 version for the 80386. Unlike 'b' and 'w', the 'e' - * motion crosses blank lines. When the real vi crosses a blank line in an - * 'e' motion, the cursor is placed on the FIRST character of the next - * non-blank line. The 'E' command, however, works correctly. Since this - * appears to be a bug, I have not duplicated it here. - * - * Returns FAIL if end of the file was reached. - * - * If stop is true and we are already on the end of a word, move one less. - * If empty is true stop on an empty line. - */ -int end_word(long count, int bigword, int stop, int empty) -{ - int sclass; // starting class - - curwin->w_cursor.coladd = 0; - cls_bigword = bigword; - while (--count >= 0) { - /* When inside a range of folded lines, move to the last char of the - * last line. */ - if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum)) { - coladvance(MAXCOL); - } - sclass = cls(); - if (inc_cursor() == -1) { - return FAIL; - } - - /* - * If we're in the middle of a word, we just have to move to the end - * of it. - */ - if (cls() == sclass && sclass != 0) { - /* - * Move forward to end of the current word - */ - if (skip_chars(sclass, FORWARD)) { - return FAIL; - } - } else if (!stop || sclass == 0) { - /* - * We were at the end of a word. Go to the end of the next word. - * First skip white space, if 'empty' is true, stop at empty line. - */ - while (cls() == 0) { - if (empty && curwin->w_cursor.col == 0 - && LINEEMPTY(curwin->w_cursor.lnum)) { - goto finished; - } - if (inc_cursor() == -1) { // hit end of file, stop here - return FAIL; - } - } - - /* - * Move forward to the end of this word. - */ - if (skip_chars(cls(), FORWARD)) { - return FAIL; - } - } - dec_cursor(); // overshot - one char backward -finished: - stop = false; // we move only one word less - } - return OK; -} - -/// Move back to the end of the word. -/// -/// @param bigword true for "B" -/// @param eol if true, then stop at end of line. -/// -/// @return FAIL if start of the file was reached. -int bckend_word(long count, int bigword, bool eol) -{ - int sclass; // starting class - int i; - - curwin->w_cursor.coladd = 0; - cls_bigword = bigword; - while (--count >= 0) { - sclass = cls(); - if ((i = dec_cursor()) == -1) { - return FAIL; - } - if (eol && i == 1) { - return OK; - } - - /* - * Move backward to before the start of this word. - */ - if (sclass != 0) { - while (cls() == sclass) { - if ((i = dec_cursor()) == -1 || (eol && i == 1)) { - return OK; - } - } - } - - /* - * Move backward to end of the previous word - */ - while (cls() == 0) { - if (curwin->w_cursor.col == 0 && LINEEMPTY(curwin->w_cursor.lnum)) { - break; - } - if ((i = dec_cursor()) == -1 || (eol && i == 1)) { - return OK; - } - } - } - return OK; -} - -/// Skip a row of characters of the same class. -/// -/// @return true when end-of-file reached, false otherwise. -static bool skip_chars(int cclass, int dir) -{ - while (cls() == cclass) { - if ((dir == FORWARD ? inc_cursor() : dec_cursor()) == -1) { - return true; - } - } - return false; -} - -/* - * Go back to the start of the word or the start of white space - */ -static void back_in_line(void) -{ - int sclass; // starting class - - sclass = cls(); - for (;;) { - if (curwin->w_cursor.col == 0) { // stop at start of line - break; - } - dec_cursor(); - if (cls() != sclass) { // stop at start of word - inc_cursor(); - break; - } - } -} - -static void find_first_blank(pos_T *posp) -{ - int c; - - while (decl(posp) != -1) { - c = gchar_pos(posp); - if (!ascii_iswhite(c)) { - incl(posp); - break; - } - } -} - -/// Skip count/2 sentences and count/2 separating white spaces. -/// -/// @param at_start_sent cursor is at start of sentence -static void findsent_forward(long count, bool at_start_sent) -{ - while (count--) { - findsent(FORWARD, 1L); - if (at_start_sent) { - find_first_blank(&curwin->w_cursor); - } - if (count == 0 || at_start_sent) { - decl(&curwin->w_cursor); - } - at_start_sent = !at_start_sent; - } -} - -/// Find word under cursor, cursor at end. -/// Used while an operator is pending, and in Visual mode. -/// -/// @param include true: include word and white space -/// @param bigword false == word, true == WORD -int current_word(oparg_T *oap, long count, int include, int bigword) -{ - pos_T start_pos; - pos_T pos; - bool inclusive = true; - int include_white = false; - - cls_bigword = bigword; - clearpos(&start_pos); - - // Correct cursor when 'selection' is exclusive - if (VIsual_active && *p_sel == 'e' && lt(VIsual, curwin->w_cursor)) { - dec_cursor(); - } - - /* - * When Visual mode is not active, or when the VIsual area is only one - * character, select the word and/or white space under the cursor. - */ - if (!VIsual_active || equalpos(curwin->w_cursor, VIsual)) { - /* - * Go to start of current word or white space. - */ - back_in_line(); - start_pos = curwin->w_cursor; - - /* - * If the start is on white space, and white space should be included - * (" word"), or start is not on white space, and white space should - * not be included ("word"), find end of word. - */ - if ((cls() == 0) == include) { - if (end_word(1L, bigword, true, true) == FAIL) { - return FAIL; - } - } else { - /* - * If the start is not on white space, and white space should be - * included ("word "), or start is on white space and white - * space should not be included (" "), find start of word. - * If we end up in the first column of the next line (single char - * word) back up to end of the line. - */ - fwd_word(1L, bigword, true); - if (curwin->w_cursor.col == 0) { - decl(&curwin->w_cursor); - } else { - oneleft(); - } - - if (include) { - include_white = true; - } - } - - if (VIsual_active) { - // should do something when inclusive == false ! - VIsual = start_pos; - redraw_curbuf_later(UPD_INVERTED); // update the inversion - } else { - oap->start = start_pos; - oap->motion_type = kMTCharWise; - } - count--; - } - - /* - * When count is still > 0, extend with more objects. - */ - while (count > 0) { - inclusive = true; - if (VIsual_active && lt(curwin->w_cursor, VIsual)) { - /* - * In Visual mode, with cursor at start: move cursor back. - */ - if (decl(&curwin->w_cursor) == -1) { - return FAIL; - } - if (include != (cls() != 0)) { - if (bck_word(1L, bigword, true) == FAIL) { - return FAIL; - } - } else { - if (bckend_word(1L, bigword, true) == FAIL) { - return FAIL; - } - (void)incl(&curwin->w_cursor); - } - } else { - /* - * Move cursor forward one word and/or white area. - */ - if (incl(&curwin->w_cursor) == -1) { - return FAIL; - } - if (include != (cls() == 0)) { - if (fwd_word(1L, bigword, true) == FAIL && count > 1) { - return FAIL; - } - /* - * If end is just past a new-line, we don't want to include - * the first character on the line. - * Put cursor on last char of white. - */ - if (oneleft() == FAIL) { - inclusive = false; - } - } else { - if (end_word(1L, bigword, true, true) == FAIL) { - return FAIL; - } - } - } - count--; - } - - if (include_white && (cls() != 0 - || (curwin->w_cursor.col == 0 && !inclusive))) { - /* - * If we don't include white space at the end, move the start - * to include some white space there. This makes "daw" work - * better on the last word in a sentence (and "2daw" on last-but-one - * word). Also when "2daw" deletes "word." at the end of the line - * (cursor is at start of next line). - * But don't delete white space at start of line (indent). - */ - pos = curwin->w_cursor; // save cursor position - curwin->w_cursor = start_pos; - if (oneleft() == OK) { - back_in_line(); - if (cls() == 0 && curwin->w_cursor.col > 0) { - if (VIsual_active) { - VIsual = curwin->w_cursor; - } else { - oap->start = curwin->w_cursor; - } - } - } - curwin->w_cursor = pos; // put cursor back at end - } - - if (VIsual_active) { - if (*p_sel == 'e' && inclusive && ltoreq(VIsual, curwin->w_cursor)) { - inc_cursor(); - } - if (VIsual_mode == 'V') { - VIsual_mode = 'v'; - redraw_cmdline = true; // show mode later - } - } else { - oap->inclusive = inclusive; - } - - return OK; -} - -/* - * Find sentence(s) under the cursor, cursor at end. - * When Visual active, extend it by one or more sentences. - */ -int current_sent(oparg_T *oap, long count, int include) -{ - pos_T start_pos; - pos_T pos; - bool start_blank; - int c; - bool at_start_sent; - long ncount; - - start_pos = curwin->w_cursor; - pos = start_pos; - findsent(FORWARD, 1L); // Find start of next sentence. - - /* - * When the Visual area is bigger than one character: Extend it. - */ - if (VIsual_active && !equalpos(start_pos, VIsual)) { -extend: - if (lt(start_pos, VIsual)) { - /* - * Cursor at start of Visual area. - * Find out where we are: - * - in the white space before a sentence - * - in a sentence or just after it - * - at the start of a sentence - */ - at_start_sent = true; - decl(&pos); - while (lt(pos, curwin->w_cursor)) { - c = gchar_pos(&pos); - if (!ascii_iswhite(c)) { - at_start_sent = false; - break; - } - incl(&pos); - } - if (!at_start_sent) { - findsent(BACKWARD, 1L); - if (equalpos(curwin->w_cursor, start_pos)) { - at_start_sent = true; // exactly at start of sentence - } else { - // inside a sentence, go to its end (start of next) - findsent(FORWARD, 1L); - } - } - if (include) { // "as" gets twice as much as "is" - count *= 2; - } - while (count--) { - if (at_start_sent) { - find_first_blank(&curwin->w_cursor); - } - c = gchar_cursor(); - if (!at_start_sent || (!include && !ascii_iswhite(c))) { - findsent(BACKWARD, 1L); - } - at_start_sent = !at_start_sent; - } - } else { - /* - * Cursor at end of Visual area. - * Find out where we are: - * - just before a sentence - * - just before or in the white space before a sentence - * - in a sentence - */ - incl(&pos); - at_start_sent = true; - if (!equalpos(pos, curwin->w_cursor)) { // not just before a sentence - at_start_sent = false; - while (lt(pos, curwin->w_cursor)) { - c = gchar_pos(&pos); - if (!ascii_iswhite(c)) { - at_start_sent = true; - break; - } - incl(&pos); - } - if (at_start_sent) { // in the sentence - findsent(BACKWARD, 1L); - } else { // in/before white before a sentence - curwin->w_cursor = start_pos; - } - } - - if (include) { // "as" gets twice as much as "is" - count *= 2; - } - findsent_forward(count, at_start_sent); - if (*p_sel == 'e') { - curwin->w_cursor.col++; - } - } - return OK; - } - - /* - * If the cursor started on a blank, check if it is just before the start - * of the next sentence. - */ - while (c = gchar_pos(&pos), ascii_iswhite(c)) { - incl(&pos); - } - if (equalpos(pos, curwin->w_cursor)) { - start_blank = true; - find_first_blank(&start_pos); // go back to first blank - } else { - start_blank = false; - findsent(BACKWARD, 1L); - start_pos = curwin->w_cursor; - } - if (include) { - ncount = count * 2; - } else { - ncount = count; - if (start_blank) { - ncount--; - } - } - if (ncount > 0) { - findsent_forward(ncount, true); - } else { - decl(&curwin->w_cursor); - } - - if (include) { - /* - * If the blank in front of the sentence is included, exclude the - * blanks at the end of the sentence, go back to the first blank. - * If there are no trailing blanks, try to include leading blanks. - */ - if (start_blank) { - find_first_blank(&curwin->w_cursor); - c = gchar_pos(&curwin->w_cursor); - if (ascii_iswhite(c)) { - decl(&curwin->w_cursor); - } - } else if (c = gchar_cursor(), !ascii_iswhite(c)) { - find_first_blank(&start_pos); - } - } - - if (VIsual_active) { - // Avoid getting stuck with "is" on a single space before a sentence. - if (equalpos(start_pos, curwin->w_cursor)) { - goto extend; - } - if (*p_sel == 'e') { - curwin->w_cursor.col++; - } - VIsual = start_pos; - VIsual_mode = 'v'; - redraw_cmdline = true; // show mode later - redraw_curbuf_later(UPD_INVERTED); // update the inversion - } else { - // include a newline after the sentence, if there is one - if (incl(&curwin->w_cursor) == -1) { - oap->inclusive = true; - } else { - oap->inclusive = false; - } - oap->start = start_pos; - oap->motion_type = kMTCharWise; - } - return OK; -} - -/// Find block under the cursor, cursor at end. -/// "what" and "other" are two matching parenthesis/brace/etc. -/// -/// @param include true == include white space -/// @param what '(', '{', etc. -/// @param other ')', '}', etc. -int current_block(oparg_T *oap, long count, int include, int what, int other) -{ - pos_T old_pos; - pos_T *pos = NULL; - pos_T start_pos; - pos_T *end_pos; - pos_T old_start, old_end; - char *save_cpo; - bool sol = false; // '{' at start of line - - old_pos = curwin->w_cursor; - old_end = curwin->w_cursor; // remember where we started - old_start = old_end; - - /* - * If we start on '(', '{', ')', '}', etc., use the whole block inclusive. - */ - if (!VIsual_active || equalpos(VIsual, curwin->w_cursor)) { - setpcmark(); - if (what == '{') { // ignore indent - while (inindent(1)) { - if (inc_cursor() != 0) { - break; - } - } - } - if (gchar_cursor() == what) { - // cursor on '(' or '{', move cursor just after it - curwin->w_cursor.col++; - } - } else if (lt(VIsual, curwin->w_cursor)) { - old_start = VIsual; - curwin->w_cursor = VIsual; // cursor at low end of Visual - } else { - old_end = VIsual; - } - - // Search backwards for unclosed '(', '{', etc.. - // Put this position in start_pos. - // Ignore quotes here. Keep the "M" flag in 'cpo', as that is what the - // user wants. - save_cpo = p_cpo; - p_cpo = vim_strchr(p_cpo, CPO_MATCHBSL) != NULL ? "%M" : "%"; - if ((pos = findmatch(NULL, what)) != NULL) { - while (count-- > 0) { - if ((pos = findmatch(NULL, what)) == NULL) { - break; - } - curwin->w_cursor = *pos; - start_pos = *pos; // the findmatch for end_pos will overwrite *pos - } - } else { - while (count-- > 0) { - if ((pos = findmatchlimit(NULL, what, FM_FORWARD, 0)) == NULL) { - break; - } - curwin->w_cursor = *pos; - start_pos = *pos; // the findmatch for end_pos will overwrite *pos - } - } - p_cpo = save_cpo; - - /* - * Search for matching ')', '}', etc. - * Put this position in curwin->w_cursor. - */ - if (pos == NULL || (end_pos = findmatch(NULL, other)) == NULL) { - curwin->w_cursor = old_pos; - return FAIL; - } - curwin->w_cursor = *end_pos; - - // Try to exclude the '(', '{', ')', '}', etc. when "include" is false. - // If the ending '}', ')' or ']' is only preceded by indent, skip that - // indent. But only if the resulting area is not smaller than what we - // started with. - while (!include) { - incl(&start_pos); - sol = (curwin->w_cursor.col == 0); - decl(&curwin->w_cursor); - while (inindent(1)) { - sol = true; - if (decl(&curwin->w_cursor) != 0) { - break; - } - } - - // In Visual mode, when the resulting area is not bigger than what we - // started with, extend it to the next block, and then exclude again. - // Don't try to expand the area if the area is empty. - if (!lt(start_pos, old_start) && !lt(old_end, curwin->w_cursor) - && !equalpos(start_pos, curwin->w_cursor) - && VIsual_active) { - curwin->w_cursor = old_start; - decl(&curwin->w_cursor); - if ((pos = findmatch(NULL, what)) == NULL) { - curwin->w_cursor = old_pos; - return FAIL; - } - start_pos = *pos; - curwin->w_cursor = *pos; - if ((end_pos = findmatch(NULL, other)) == NULL) { - curwin->w_cursor = old_pos; - return FAIL; - } - curwin->w_cursor = *end_pos; - } else { - break; - } - } - - if (VIsual_active) { - if (*p_sel == 'e') { - inc(&curwin->w_cursor); - } - if (sol && gchar_cursor() != NUL) { - inc(&curwin->w_cursor); // include the line break - } - VIsual = start_pos; - VIsual_mode = 'v'; - redraw_curbuf_later(UPD_INVERTED); // update the inversion - showmode(); - } else { - oap->start = start_pos; - oap->motion_type = kMTCharWise; - oap->inclusive = false; - if (sol) { - incl(&curwin->w_cursor); - } else if (ltoreq(start_pos, curwin->w_cursor)) { - // Include the character under the cursor. - oap->inclusive = true; - } else { - // End is before the start (no text in between <>, [], etc.): don't - // operate on any text. - curwin->w_cursor = start_pos; - } - } - - return OK; -} - -/// @param end_tag when true, return true if the cursor is on "</aaa>". -/// -/// @return true if the cursor is on a "<aaa>" tag. Ignore "<aaa/>". -static bool in_html_tag(bool end_tag) -{ - char_u *line = get_cursor_line_ptr(); - char_u *p; - int c; - int lc = NUL; - pos_T pos; - - for (p = line + curwin->w_cursor.col; p > line;) { - if (*p == '<') { // find '<' under/before cursor - break; - } - MB_PTR_BACK(line, p); - if (*p == '>') { // find '>' before cursor - break; - } - } - if (*p != '<') { - return false; - } - - pos.lnum = curwin->w_cursor.lnum; - pos.col = (colnr_T)(p - line); - - MB_PTR_ADV(p); - if (end_tag) { - // check that there is a '/' after the '<' - return *p == '/'; - } - - // check that there is no '/' after the '<' - if (*p == '/') { - return false; - } - - // check that the matching '>' is not preceded by '/' - for (;;) { - if (inc(&pos) < 0) { - return false; - } - c = *ml_get_pos(&pos); - if (c == '>') { - break; - } - lc = c; - } - return lc != '/'; -} - -/// Find tag block under the cursor, cursor at end. -/// -/// @param include true == include white space -int current_tagblock(oparg_T *oap, long count_arg, bool include) -{ - long count = count_arg; - pos_T old_pos; - pos_T start_pos; - pos_T end_pos; - pos_T old_start, old_end; - char_u *p; - char_u *cp; - int len; - bool do_include = include; - bool save_p_ws = p_ws; - int retval = FAIL; - int is_inclusive = true; - - p_ws = false; - - old_pos = curwin->w_cursor; - old_end = curwin->w_cursor; // remember where we started - old_start = old_end; - if (!VIsual_active || *p_sel == 'e') { - decl(&old_end); // old_end is inclusive - } - /* - * If we start on "<aaa>" select that block. - */ - if (!VIsual_active || equalpos(VIsual, curwin->w_cursor)) { - setpcmark(); - - // ignore indent - while (inindent(1)) { - if (inc_cursor() != 0) { - break; - } - } - - if (in_html_tag(false)) { - // cursor on start tag, move to its '>' - while (*get_cursor_pos_ptr() != '>') { - if (inc_cursor() < 0) { - break; - } - } - } else if (in_html_tag(true)) { - // cursor on end tag, move to just before it - while (*get_cursor_pos_ptr() != '<') { - if (dec_cursor() < 0) { - break; - } - } - dec_cursor(); - old_end = curwin->w_cursor; - } - } else if (lt(VIsual, curwin->w_cursor)) { - old_start = VIsual; - curwin->w_cursor = VIsual; // cursor at low end of Visual - } else { - old_end = VIsual; - } - -again: - /* - * Search backwards for unclosed "<aaa>". - * Put this position in start_pos. - */ - for (long n = 0; n < count; n++) { - if (do_searchpair("<[^ \t>/!]\\+\\%(\\_s\\_[^>]\\{-}[^/]>\\|$\\|\\_s\\=>\\)", - "", - "</[^>]*>", BACKWARD, NULL, 0, - NULL, (linenr_T)0, 0L) <= 0) { - curwin->w_cursor = old_pos; - goto theend; - } - } - start_pos = curwin->w_cursor; - - /* - * Search for matching "</aaa>". First isolate the "aaa". - */ - inc_cursor(); - p = get_cursor_pos_ptr(); - for (cp = p; - *cp != NUL && *cp != '>' && !ascii_iswhite(*cp); - MB_PTR_ADV(cp)) {} - len = (int)(cp - p); - if (len == 0) { - curwin->w_cursor = old_pos; - goto theend; - } - const size_t spat_len = (size_t)len + 39; - char *const spat = xmalloc(spat_len); - const size_t epat_len = (size_t)len + 9; - char *const epat = xmalloc(epat_len); - snprintf(spat, spat_len, - "<%.*s\\>\\%%(\\_s\\_[^>]\\{-}\\_[^/]>\\|\\_s\\?>\\)\\c", len, p); - snprintf(epat, epat_len, "</%.*s>\\c", len, p); - - const int r = (int)do_searchpair(spat, "", epat, FORWARD, NULL, 0, NULL, (linenr_T)0, 0L); - - xfree(spat); - xfree(epat); - - if (r < 1 || lt(curwin->w_cursor, old_end)) { - // Can't find other end or it's before the previous end. Could be a - // HTML tag that doesn't have a matching end. Search backwards for - // another starting tag. - count = 1; - curwin->w_cursor = start_pos; - goto again; - } - - if (do_include) { - // Include up to the '>'. - while (*get_cursor_pos_ptr() != '>') { - if (inc_cursor() < 0) { - break; - } - } - } else { - char_u *c = get_cursor_pos_ptr(); - // Exclude the '<' of the end tag. - // If the closing tag is on new line, do not decrement cursor, but make - // operation exclusive, so that the linefeed will be selected - if (*c == '<' && !VIsual_active && curwin->w_cursor.col == 0) { - // do not decrement cursor - is_inclusive = false; - } else if (*c == '<') { - dec_cursor(); - } - } - end_pos = curwin->w_cursor; - - if (!do_include) { - // Exclude the start tag. - curwin->w_cursor = start_pos; - while (inc_cursor() >= 0) { - if (*get_cursor_pos_ptr() == '>') { - inc_cursor(); - start_pos = curwin->w_cursor; - break; - } - } - curwin->w_cursor = end_pos; - - // If we are in Visual mode and now have the same text as before set - // "do_include" and try again. - if (VIsual_active - && equalpos(start_pos, old_start) - && equalpos(end_pos, old_end)) { - do_include = true; - curwin->w_cursor = old_start; - count = count_arg; - goto again; - } - } - - if (VIsual_active) { - // If the end is before the start there is no text between tags, select - // the char under the cursor. - if (lt(end_pos, start_pos)) { - curwin->w_cursor = start_pos; - } else if (*p_sel == 'e') { - inc_cursor(); - } - VIsual = start_pos; - VIsual_mode = 'v'; - redraw_curbuf_later(UPD_INVERTED); // update the inversion - showmode(); - } else { - oap->start = start_pos; - oap->motion_type = kMTCharWise; - if (lt(end_pos, start_pos)) { - // End is before the start: there is no text between tags; operate - // on an empty area. - curwin->w_cursor = start_pos; - oap->inclusive = false; - } else { - oap->inclusive = is_inclusive; - } - } - retval = OK; - -theend: - p_ws = save_p_ws; - return retval; -} - -/// @param include true == include white space -/// @param type 'p' for paragraph, 'S' for section -int current_par(oparg_T *oap, long count, int include, int type) -{ - linenr_T start_lnum; - linenr_T end_lnum; - int white_in_front; - int dir; - int start_is_white; - int prev_start_is_white; - int retval = OK; - int do_white = false; - int t; - int i; - - if (type == 'S') { // not implemented yet - return FAIL; - } - - start_lnum = curwin->w_cursor.lnum; - - /* - * When visual area is more than one line: extend it. - */ - if (VIsual_active && start_lnum != VIsual.lnum) { -extend: - if (start_lnum < VIsual.lnum) { - dir = BACKWARD; - } else { - dir = FORWARD; - } - for (i = (int)count; --i >= 0;) { - if (start_lnum == - (dir == BACKWARD ? 1 : curbuf->b_ml.ml_line_count)) { - retval = FAIL; - break; - } - - prev_start_is_white = -1; - for (t = 0; t < 2; t++) { - start_lnum += dir; - start_is_white = linewhite(start_lnum); - if (prev_start_is_white == start_is_white) { - start_lnum -= dir; - break; - } - for (;;) { - if (start_lnum == (dir == BACKWARD - ? 1 : curbuf->b_ml.ml_line_count)) { - break; - } - if (start_is_white != linewhite(start_lnum + dir) - || (!start_is_white - && startPS(start_lnum + (dir > 0 - ? 1 : 0), 0, 0))) { - break; - } - start_lnum += dir; - } - if (!include) { - break; - } - if (start_lnum == (dir == BACKWARD - ? 1 : curbuf->b_ml.ml_line_count)) { - break; - } - prev_start_is_white = start_is_white; - } - } - curwin->w_cursor.lnum = start_lnum; - curwin->w_cursor.col = 0; - return retval; - } - - /* - * First move back to the start_lnum of the paragraph or white lines - */ - white_in_front = linewhite(start_lnum); - while (start_lnum > 1) { - if (white_in_front) { // stop at first white line - if (!linewhite(start_lnum - 1)) { - break; - } - } else { // stop at first non-white line of start of paragraph - if (linewhite(start_lnum - 1) || startPS(start_lnum, 0, 0)) { - break; - } - } - start_lnum--; - } - - /* - * Move past the end of any white lines. - */ - end_lnum = start_lnum; - while (end_lnum <= curbuf->b_ml.ml_line_count && linewhite(end_lnum)) { - end_lnum++; - } - - end_lnum--; - i = (int)count; - if (!include && white_in_front) { - i--; - } - while (i--) { - if (end_lnum == curbuf->b_ml.ml_line_count) { - return FAIL; - } - - if (!include) { - do_white = linewhite(end_lnum + 1); - } - - if (include || !do_white) { - end_lnum++; - // skip to end of paragraph - while (end_lnum < curbuf->b_ml.ml_line_count - && !linewhite(end_lnum + 1) - && !startPS(end_lnum + 1, 0, 0)) { - end_lnum++; - } - } - - if (i == 0 && white_in_front && include) { - break; - } - - /* - * skip to end of white lines after paragraph - */ - if (include || do_white) { - while (end_lnum < curbuf->b_ml.ml_line_count - && linewhite(end_lnum + 1)) { - end_lnum++; - } - } - } - - /* - * If there are no empty lines at the end, try to find some empty lines at - * the start (unless that has been done already). - */ - if (!white_in_front && !linewhite(end_lnum) && include) { - while (start_lnum > 1 && linewhite(start_lnum - 1)) { - start_lnum--; - } - } - - if (VIsual_active) { - // Problem: when doing "Vipipip" nothing happens in a single white - // line, we get stuck there. Trap this here. - if (VIsual_mode == 'V' && start_lnum == curwin->w_cursor.lnum) { - goto extend; - } - if (VIsual.lnum != start_lnum) { - VIsual.lnum = start_lnum; - VIsual.col = 0; - } - VIsual_mode = 'V'; - redraw_curbuf_later(UPD_INVERTED); // update the inversion - showmode(); - } else { - oap->start.lnum = start_lnum; - oap->start.col = 0; - oap->motion_type = kMTLineWise; - } - curwin->w_cursor.lnum = end_lnum; - curwin->w_cursor.col = 0; - - return OK; -} - -/// Search quote char from string line[col]. -/// Quote character escaped by one of the characters in "escape" is not counted -/// as a quote. -/// -/// @param escape escape characters, can be NULL -/// -/// @return column number of "quotechar" or -1 when not found. -static int find_next_quote(char_u *line, int col, int quotechar, char_u *escape) -{ - int c; - - for (;;) { - c = line[col]; - if (c == NUL) { - return -1; - } else if (escape != NULL && vim_strchr((char *)escape, c)) { - col++; - if (line[col] == NUL) { - return -1; - } - } else if (c == quotechar) { - break; - } - col += utfc_ptr2len((char *)line + col); - } - return col; -} - -/// Search backwards in "line" from column "col_start" to find "quotechar". -/// Quote character escaped by one of the characters in "escape" is not counted -/// as a quote. -/// -/// @param escape escape characters, can be NULL -/// -/// @return the found column or zero. -static int find_prev_quote(char_u *line, int col_start, int quotechar, char_u *escape) -{ - int n; - - while (col_start > 0) { - col_start--; - col_start -= utf_head_off(line, line + col_start); - n = 0; - if (escape != NULL) { - while (col_start - n > 0 && vim_strchr((char *)escape, - line[col_start - n - 1]) != NULL) { - n++; - } - } - if (n & 1) { - col_start -= n; // uneven number of escape chars, skip it - } else if (line[col_start] == quotechar) { - break; - } - } - return col_start; -} - -/// Find quote under the cursor, cursor at end. -/// -/// @param include true == include quote char -/// @param quotechar Quote character -/// -/// @return true if found, else false. -bool current_quote(oparg_T *oap, long count, bool include, int quotechar) - FUNC_ATTR_NONNULL_ALL -{ - char_u *line = get_cursor_line_ptr(); - int col_end; - int col_start = curwin->w_cursor.col; - bool inclusive = false; - bool vis_empty = true; // Visual selection <= 1 char - bool vis_bef_curs = false; // Visual starts before cursor - bool did_exclusive_adj = false; // adjusted pos for 'selection' - bool inside_quotes = false; // Looks like "i'" done before - bool selected_quote = false; // Has quote inside selection - int i; - bool restore_vis_bef = false; // resotre VIsual on abort - - // When 'selection' is "exclusive" move the cursor to where it would be - // with 'selection' "inclusive", so that the logic is the same for both. - // The cursor then is moved forward after adjusting the area. - if (VIsual_active) { - // this only works within one line - if (VIsual.lnum != curwin->w_cursor.lnum) { - return false; - } - - vis_bef_curs = lt(VIsual, curwin->w_cursor); - vis_empty = equalpos(VIsual, curwin->w_cursor); - if (*p_sel == 'e') { - if (vis_bef_curs) { - dec_cursor(); - did_exclusive_adj = true; - } else if (!vis_empty) { - dec(&VIsual); - did_exclusive_adj = true; - } - vis_empty = equalpos(VIsual, curwin->w_cursor); - if (!vis_bef_curs && !vis_empty) { - // VIsual needs to be start of Visual selection. - pos_T t = curwin->w_cursor; - - curwin->w_cursor = VIsual; - VIsual = t; - vis_bef_curs = true; - restore_vis_bef = true; - } - } - } - - if (!vis_empty) { - // Check if the existing selection exactly spans the text inside - // quotes. - if (vis_bef_curs) { - inside_quotes = VIsual.col > 0 - && line[VIsual.col - 1] == quotechar - && line[curwin->w_cursor.col] != NUL - && line[curwin->w_cursor.col + 1] == quotechar; - i = VIsual.col; - col_end = curwin->w_cursor.col; - } else { - inside_quotes = curwin->w_cursor.col > 0 - && line[curwin->w_cursor.col - 1] == quotechar - && line[VIsual.col] != NUL - && line[VIsual.col + 1] == quotechar; - i = curwin->w_cursor.col; - col_end = VIsual.col; - } - - // Find out if we have a quote in the selection. - while (i <= col_end) { - // check for going over the end of the line, which can happen if - // the line was changed after the Visual area was selected. - if (line[i] == NUL) { - break; - } - if (line[i++] == quotechar) { - selected_quote = true; - break; - } - } - } - - if (!vis_empty && line[col_start] == quotechar) { - // Already selecting something and on a quote character. Find the - // next quoted string. - if (vis_bef_curs) { - // Assume we are on a closing quote: move to after the next - // opening quote. - col_start = find_next_quote(line, col_start + 1, quotechar, NULL); - if (col_start < 0) { - goto abort_search; - } - col_end = find_next_quote(line, col_start + 1, quotechar, (char_u *)curbuf->b_p_qe); - if (col_end < 0) { - // We were on a starting quote perhaps? - col_end = col_start; - col_start = curwin->w_cursor.col; - } - } else { - col_end = find_prev_quote(line, col_start, quotechar, NULL); - if (line[col_end] != quotechar) { - goto abort_search; - } - col_start = find_prev_quote(line, col_end, quotechar, (char_u *)curbuf->b_p_qe); - if (line[col_start] != quotechar) { - // We were on an ending quote perhaps? - col_start = col_end; - col_end = curwin->w_cursor.col; - } - } - } else if (line[col_start] == quotechar || !vis_empty) { - int first_col = col_start; - - if (!vis_empty) { - if (vis_bef_curs) { - first_col = find_next_quote(line, col_start, quotechar, NULL); - } else { - first_col = find_prev_quote(line, col_start, quotechar, NULL); - } - } - // The cursor is on a quote, we don't know if it's the opening or - // closing quote. Search from the start of the line to find out. - // Also do this when there is a Visual area, a' may leave the cursor - // in between two strings. - col_start = 0; - for (;;) { - // Find open quote character. - col_start = find_next_quote(line, col_start, quotechar, NULL); - if (col_start < 0 || col_start > first_col) { - goto abort_search; - } - // Find close quote character. - col_end = find_next_quote(line, col_start + 1, quotechar, (char_u *)curbuf->b_p_qe); - if (col_end < 0) { - goto abort_search; - } - // If is cursor between start and end quote character, it is - // target text object. - if (col_start <= first_col && first_col <= col_end) { - break; - } - col_start = col_end + 1; - } - } else { - // Search backward for a starting quote. - col_start = find_prev_quote(line, col_start, quotechar, (char_u *)curbuf->b_p_qe); - if (line[col_start] != quotechar) { - // No quote before the cursor, look after the cursor. - col_start = find_next_quote(line, col_start, quotechar, NULL); - if (col_start < 0) { - goto abort_search; - } - } - - // Find close quote character. - col_end = find_next_quote(line, col_start + 1, quotechar, (char_u *)curbuf->b_p_qe); - if (col_end < 0) { - goto abort_search; - } - } - - // When "include" is true, include spaces after closing quote or before - // the starting quote. - if (include) { - if (ascii_iswhite(line[col_end + 1])) { - while (ascii_iswhite(line[col_end + 1])) { - col_end++; - } - } else { - while (col_start > 0 && ascii_iswhite(line[col_start - 1])) { - col_start--; - } - } - } - - // Set start position. After vi" another i" must include the ". - // For v2i" include the quotes. - if (!include && count < 2 && (vis_empty || !inside_quotes)) { - col_start++; - } - curwin->w_cursor.col = col_start; - if (VIsual_active) { - // Set the start of the Visual area when the Visual area was empty, we - // were just inside quotes or the Visual area didn't start at a quote - // and didn't include a quote. - if (vis_empty - || (vis_bef_curs - && !selected_quote - && (inside_quotes - || (line[VIsual.col] != quotechar - && (VIsual.col == 0 - || line[VIsual.col - 1] != quotechar))))) { - VIsual = curwin->w_cursor; - redraw_curbuf_later(UPD_INVERTED); - } - } else { - oap->start = curwin->w_cursor; - oap->motion_type = kMTCharWise; - } - - // Set end position. - curwin->w_cursor.col = col_end; - if ((include || count > 1 - // After vi" another i" must include the ". - || (!vis_empty && inside_quotes) - ) && inc_cursor() == 2) { - inclusive = true; - } - if (VIsual_active) { - if (vis_empty || vis_bef_curs) { - // decrement cursor when 'selection' is not exclusive - if (*p_sel != 'e') { - dec_cursor(); - } - } else { - // Cursor is at start of Visual area. Set the end of the Visual - // area when it was just inside quotes or it didn't end at a - // quote. - if (inside_quotes - || (!selected_quote - && line[VIsual.col] != quotechar - && (line[VIsual.col] == NUL - || line[VIsual.col + 1] != quotechar))) { - dec_cursor(); - VIsual = curwin->w_cursor; - } - curwin->w_cursor.col = col_start; - } - if (VIsual_mode == 'V') { - VIsual_mode = 'v'; - redraw_cmdline = true; // show mode later - } - } else { - // Set inclusive and other oap's flags. - oap->inclusive = inclusive; - } - - return true; - -abort_search: - if (VIsual_active && *p_sel == 'e') { - if (did_exclusive_adj) { - inc_cursor(); - } - if (restore_vis_bef) { - pos_T t = curwin->w_cursor; - - curwin->w_cursor = VIsual; - VIsual = t; - } - } - return false; -} - /// Find next search match under cursor, cursor at end. /// Used while an operator is pending, and in Visual mode. /// |