aboutsummaryrefslogtreecommitdiff
path: root/src/nvim/edit.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/nvim/edit.c')
-rw-r--r--src/nvim/edit.c606
1 files changed, 7 insertions, 599 deletions
diff --git a/src/nvim/edit.c b/src/nvim/edit.c
index 82429d6542..d9aec2fbad 100644
--- a/src/nvim/edit.c
+++ b/src/nvim/edit.c
@@ -56,6 +56,7 @@
#include "nvim/strings.h"
#include "nvim/syntax.h"
#include "nvim/terminal.h"
+#include "nvim/textformat.h"
#include "nvim/ui.h"
#include "nvim/undo.h"
#include "nvim/vim.h"
@@ -108,8 +109,6 @@ static int did_restart_edit; // "restart_edit" when calling edit()
static bool can_cindent; // may do cindenting on this line
-static int old_indent = 0; // for ^^D command in insert mode
-
static int revins_on; // reverse insert mode on
static int revins_chars; // how much to skip after edit
static int revins_legal; // was the last char 'legal'?
@@ -119,8 +118,6 @@ static bool ins_need_undo; // call u_save() before inserting a
// char. Set when edit() is called.
// after that arrow_used is used.
-static bool did_add_space = false; // auto_format() added an extra space
- // under the cursor
static TriState dont_sync_undo = kFalse; // CTRL-G U prevents syncing undo
// for the next left/right cursor key
@@ -1561,7 +1558,7 @@ void display_dollar(colnr_T col)
* Call this function before moving the cursor from the normal insert position
* in insert mode.
*/
-static void undisplay_dollar(void)
+void undisplay_dollar(void)
{
if (dollar_vcol >= 0) {
dollar_vcol = -1;
@@ -2012,9 +2009,6 @@ static void insert_special(int c, int allow_modmask, int ctrlv)
*/
#define ISSPECIAL(c) ((c) < ' ' || (c) >= DEL || (c) == '0' || (c) == '^')
-#define WHITECHAR(cc) (ascii_iswhite(cc) \
- && !utf_iscomposing(utf_ptr2char((char *)get_cursor_pos_ptr() + 1)))
-
///
/// "flags": INSCHAR_FORMAT - force formatting
/// INSCHAR_CTRLV - char typed just after CTRL-V
@@ -2213,597 +2207,6 @@ void insertchar(int c, int flags, int second_indent)
}
}
-/// Format text at the current insert position.
-///
-/// If the INSCHAR_COM_LIST flag is present, then the value of second_indent
-/// will be the comment leader length sent to open_line().
-///
-/// @param c character to be inserted (can be NUL)
-static void internal_format(int textwidth, int second_indent, int flags, int format_only, int c)
-{
- int cc;
- int save_char = NUL;
- bool haveto_redraw = false;
- const bool fo_ins_blank = has_format_option(FO_INS_BLANK);
- const bool fo_multibyte = has_format_option(FO_MBYTE_BREAK);
- const bool fo_rigor_tw = has_format_option(FO_RIGOROUS_TW);
- const bool fo_white_par = has_format_option(FO_WHITE_PAR);
- bool first_line = true;
- colnr_T leader_len;
- bool no_leader = false;
- int do_comments = (flags & INSCHAR_DO_COM);
- int has_lbr = curwin->w_p_lbr;
-
- // make sure win_lbr_chartabsize() counts correctly
- curwin->w_p_lbr = false;
-
- /*
- * When 'ai' is off we don't want a space under the cursor to be
- * deleted. Replace it with an 'x' temporarily.
- */
- if (!curbuf->b_p_ai
- && !(State & VREPLACE_FLAG)) {
- cc = gchar_cursor();
- if (ascii_iswhite(cc)) {
- save_char = cc;
- pchar_cursor('x');
- }
- }
-
- /*
- * Repeat breaking lines, until the current line is not too long.
- */
- while (!got_int) {
- int startcol; // Cursor column at entry
- int wantcol; // column at textwidth border
- int foundcol; // column for start of spaces
- int end_foundcol = 0; // column for start of word
- colnr_T len;
- colnr_T virtcol;
- int orig_col = 0;
- char_u *saved_text = NULL;
- colnr_T col;
- colnr_T end_col;
- bool did_do_comment = false;
-
- virtcol = get_nolist_virtcol()
- + char2cells(c != NUL ? c : gchar_cursor());
- if (virtcol <= (colnr_T)textwidth) {
- break;
- }
-
- if (no_leader) {
- do_comments = false;
- } else if (!(flags & INSCHAR_FORMAT)
- && has_format_option(FO_WRAP_COMS)) {
- do_comments = true;
- }
-
- // Don't break until after the comment leader
- if (do_comments) {
- char_u *line = get_cursor_line_ptr();
- leader_len = get_leader_len((char *)line, NULL, false, true);
- if (leader_len == 0 && curbuf->b_p_cin) {
- // Check for a line comment after code.
- int comment_start = check_linecomment(line);
- if (comment_start != MAXCOL) {
- leader_len = get_leader_len((char *)line + comment_start, NULL, false, true);
- if (leader_len != 0) {
- leader_len += comment_start;
- }
- }
- }
- } else {
- leader_len = 0;
- }
-
- // If the line doesn't start with a comment leader, then don't
- // start one in a following broken line. Avoids that a %word
- // moved to the start of the next line causes all following lines
- // to start with %.
- if (leader_len == 0) {
- no_leader = true;
- }
- if (!(flags & INSCHAR_FORMAT)
- && leader_len == 0
- && !has_format_option(FO_WRAP)) {
- break;
- }
- if ((startcol = curwin->w_cursor.col) == 0) {
- break;
- }
-
- // find column of textwidth border
- coladvance((colnr_T)textwidth);
- wantcol = curwin->w_cursor.col;
-
- curwin->w_cursor.col = startcol;
- foundcol = 0;
- int skip_pos = 0;
-
- /*
- * Find position to break at.
- * Stop at first entered white when 'formatoptions' has 'v'
- */
- while ((!fo_ins_blank && !has_format_option(FO_INS_VI))
- || (flags & INSCHAR_FORMAT)
- || curwin->w_cursor.lnum != Insstart.lnum
- || curwin->w_cursor.col >= Insstart.col) {
- if (curwin->w_cursor.col == startcol && c != NUL) {
- cc = c;
- } else {
- cc = gchar_cursor();
- }
- if (WHITECHAR(cc)) {
- // remember position of blank just before text
- end_col = curwin->w_cursor.col;
-
- // find start of sequence of blanks
- int wcc = 0; // counter for whitespace chars
- while (curwin->w_cursor.col > 0 && WHITECHAR(cc)) {
- dec_cursor();
- cc = gchar_cursor();
-
- // Increment count of how many whitespace chars in this
- // group; we only need to know if it's more than one.
- if (wcc < 2) {
- wcc++;
- }
- }
- if (curwin->w_cursor.col == 0 && WHITECHAR(cc)) {
- break; // only spaces in front of text
- }
-
- // Don't break after a period when 'formatoptions' has 'p' and
- // there are less than two spaces.
- if (has_format_option(FO_PERIOD_ABBR) && cc == '.' && wcc < 2) {
- continue;
- }
-
- // Don't break until after the comment leader
- if (curwin->w_cursor.col < leader_len) {
- break;
- }
-
- if (has_format_option(FO_ONE_LETTER)) {
- // do not break after one-letter words
- if (curwin->w_cursor.col == 0) {
- break; // one-letter word at begin
- }
- // do not break "#a b" when 'tw' is 2
- if (curwin->w_cursor.col <= leader_len) {
- break;
- }
- col = curwin->w_cursor.col;
- dec_cursor();
- cc = gchar_cursor();
-
- if (WHITECHAR(cc)) {
- continue; // one-letter, continue
- }
- curwin->w_cursor.col = col;
- }
-
- inc_cursor();
-
- end_foundcol = end_col + 1;
- foundcol = curwin->w_cursor.col;
- if (curwin->w_cursor.col <= (colnr_T)wantcol) {
- break;
- }
- } else if ((cc >= 0x100 || !utf_allow_break_before(cc)) && fo_multibyte) {
- int ncc;
- bool allow_break;
-
- // Break after or before a multi-byte character.
- if (curwin->w_cursor.col != startcol) {
- // Don't break until after the comment leader
- if (curwin->w_cursor.col < leader_len) {
- break;
- }
- col = curwin->w_cursor.col;
- inc_cursor();
- ncc = gchar_cursor();
- allow_break = utf_allow_break(cc, ncc);
-
- // If we have already checked this position, skip!
- if (curwin->w_cursor.col != skip_pos && allow_break) {
- foundcol = curwin->w_cursor.col;
- end_foundcol = foundcol;
- if (curwin->w_cursor.col <= (colnr_T)wantcol) {
- break;
- }
- }
- curwin->w_cursor.col = col;
- }
-
- if (curwin->w_cursor.col == 0) {
- break;
- }
-
- ncc = cc;
- col = curwin->w_cursor.col;
-
- dec_cursor();
- cc = gchar_cursor();
-
- if (WHITECHAR(cc)) {
- continue; // break with space
- }
- // Don't break until after the comment leader.
- if (curwin->w_cursor.col < leader_len) {
- break;
- }
-
- curwin->w_cursor.col = col;
- skip_pos = curwin->w_cursor.col;
-
- allow_break = utf_allow_break(cc, ncc);
-
- // Must handle this to respect line break prohibition.
- if (allow_break) {
- foundcol = curwin->w_cursor.col;
- end_foundcol = foundcol;
- }
- if (curwin->w_cursor.col <= (colnr_T)wantcol) {
- const bool ncc_allow_break = utf_allow_break_before(ncc);
-
- if (allow_break) {
- break;
- }
- if (!ncc_allow_break && !fo_rigor_tw) {
- // Enable at most 1 punct hang outside of textwidth.
- if (curwin->w_cursor.col == startcol) {
- // We are inserting a non-breakable char, postpone
- // line break check to next insert.
- end_foundcol = foundcol = 0;
- break;
- }
-
- // Neither cc nor ncc is NUL if we are here, so
- // it's safe to inc_cursor.
- col = curwin->w_cursor.col;
-
- inc_cursor();
- cc = ncc;
- ncc = gchar_cursor();
- // handle insert
- ncc = (ncc != NUL) ? ncc : c;
-
- allow_break = utf_allow_break(cc, ncc);
-
- if (allow_break) {
- // Break only when we are not at end of line.
- end_foundcol = foundcol = ncc == NUL? 0 : curwin->w_cursor.col;
- break;
- }
- curwin->w_cursor.col = col;
- }
- }
- }
- if (curwin->w_cursor.col == 0) {
- break;
- }
- dec_cursor();
- }
-
- if (foundcol == 0) { // no spaces, cannot break line
- curwin->w_cursor.col = startcol;
- break;
- }
-
- // Going to break the line, remove any "$" now.
- undisplay_dollar();
-
- // Offset between cursor position and line break is used by replace
- // stack functions. MODE_VREPLACE does not use this, and backspaces
- // over the text instead.
- if (State & VREPLACE_FLAG) {
- orig_col = startcol; // Will start backspacing from here
- } else {
- replace_offset = startcol - end_foundcol;
- }
-
- /*
- * adjust startcol for spaces that will be deleted and
- * characters that will remain on top line
- */
- curwin->w_cursor.col = foundcol;
- while ((cc = gchar_cursor(), WHITECHAR(cc))
- && (!fo_white_par || curwin->w_cursor.col < startcol)) {
- inc_cursor();
- }
- startcol -= curwin->w_cursor.col;
- if (startcol < 0) {
- startcol = 0;
- }
-
- if (State & VREPLACE_FLAG) {
- // In MODE_VREPLACE state, we will backspace over the text to be
- // wrapped, so save a copy now to put on the next line.
- saved_text = vim_strsave(get_cursor_pos_ptr());
- curwin->w_cursor.col = orig_col;
- saved_text[startcol] = NUL;
-
- // Backspace over characters that will move to the next line
- if (!fo_white_par) {
- backspace_until_column(foundcol);
- }
- } else {
- // put cursor after pos. to break line
- if (!fo_white_par) {
- curwin->w_cursor.col = foundcol;
- }
- }
-
- /*
- * Split the line just before the margin.
- * Only insert/delete lines, but don't really redraw the window.
- */
- open_line(FORWARD, OPENLINE_DELSPACES + OPENLINE_MARKFIX
- + (fo_white_par ? OPENLINE_KEEPTRAIL : 0)
- + (do_comments ? OPENLINE_DO_COM : 0)
- + OPENLINE_FORMAT
- + ((flags & INSCHAR_COM_LIST) ? OPENLINE_COM_LIST : 0),
- ((flags & INSCHAR_COM_LIST) ? second_indent : old_indent),
- &did_do_comment);
- if (!(flags & INSCHAR_COM_LIST)) {
- old_indent = 0;
- }
-
- // If a comment leader was inserted, may also do this on a following
- // line.
- if (did_do_comment) {
- no_leader = false;
- }
-
- replace_offset = 0;
- if (first_line) {
- if (!(flags & INSCHAR_COM_LIST)) {
- // This section is for auto-wrap of numeric lists. When not
- // in insert mode (i.e. format_lines()), the INSCHAR_COM_LIST
- // flag will be set and open_line() will handle it (as seen
- // above). The code here (and in get_number_indent()) will
- // recognize comments if needed...
- if (second_indent < 0 && has_format_option(FO_Q_NUMBER)) {
- second_indent = get_number_indent(curwin->w_cursor.lnum - 1);
- }
- if (second_indent >= 0) {
- if (State & VREPLACE_FLAG) {
- change_indent(INDENT_SET, second_indent, false, NUL, true);
- } else if (leader_len > 0 && second_indent - leader_len > 0) {
- int padding = second_indent - leader_len;
-
- // We started at the first_line of a numbered list
- // that has a comment. the open_line() function has
- // inserted the proper comment leader and positioned
- // the cursor at the end of the split line. Now we
- // add the additional whitespace needed after the
- // comment leader for the numbered list.
- for (int i = 0; i < padding; i++) {
- ins_str((char_u *)" ");
- }
- changed_bytes(curwin->w_cursor.lnum, leader_len);
- } else {
- (void)set_indent(second_indent, SIN_CHANGED);
- }
- }
- }
- first_line = false;
- }
-
- if (State & VREPLACE_FLAG) {
- // In MODE_VREPLACE state we have backspaced over the text to be
- // moved, now we re-insert it into the new line.
- ins_bytes((char *)saved_text);
- xfree(saved_text);
- } else {
- /*
- * Check if cursor is not past the NUL off the line, cindent
- * may have added or removed indent.
- */
- curwin->w_cursor.col += startcol;
- len = (colnr_T)STRLEN(get_cursor_line_ptr());
- if (curwin->w_cursor.col > len) {
- curwin->w_cursor.col = len;
- }
- }
-
- haveto_redraw = true;
- can_cindent = true;
- // moved the cursor, don't autoindent or cindent now
- did_ai = false;
- did_si = false;
- can_si = false;
- can_si_back = false;
- line_breakcheck();
- }
-
- if (save_char != NUL) { // put back space after cursor
- pchar_cursor((char_u)save_char);
- }
-
- curwin->w_p_lbr = has_lbr;
-
- if (!format_only && haveto_redraw) {
- update_topline(curwin);
- redraw_curbuf_later(UPD_VALID);
- }
-}
-
-/// Called after inserting or deleting text: When 'formatoptions' includes the
-/// 'a' flag format from the current line until the end of the paragraph.
-/// Keep the cursor at the same position relative to the text.
-/// The caller must have saved the cursor line for undo, following ones will be
-/// saved here.
-///
-/// @param trailblank when true also format with trailing blank
-/// @param prev_line may start in previous line
-void auto_format(bool trailblank, bool prev_line)
-{
- pos_T pos;
- colnr_T len;
- char_u *old;
- char_u *new, *pnew;
- int wasatend;
- int cc;
-
- if (!has_format_option(FO_AUTO)) {
- return;
- }
-
- pos = curwin->w_cursor;
- old = get_cursor_line_ptr();
-
- // may remove added space
- check_auto_format(false);
-
- // Don't format in Insert mode when the cursor is on a trailing blank, the
- // user might insert normal text next. Also skip formatting when "1" is
- // in 'formatoptions' and there is a single character before the cursor.
- // Otherwise the line would be broken and when typing another non-white
- // next they are not joined back together.
- wasatend = (pos.col == (colnr_T)STRLEN(old));
- if (*old != NUL && !trailblank && wasatend) {
- dec_cursor();
- cc = gchar_cursor();
- if (!WHITECHAR(cc) && curwin->w_cursor.col > 0
- && has_format_option(FO_ONE_LETTER)) {
- dec_cursor();
- }
- cc = gchar_cursor();
- if (WHITECHAR(cc)) {
- curwin->w_cursor = pos;
- return;
- }
- curwin->w_cursor = pos;
- }
-
- // With the 'c' flag in 'formatoptions' and 't' missing: only format
- // comments.
- if (has_format_option(FO_WRAP_COMS) && !has_format_option(FO_WRAP)
- && get_leader_len((char *)old, NULL, false, true) == 0) {
- return;
- }
-
- /*
- * May start formatting in a previous line, so that after "x" a word is
- * moved to the previous line if it fits there now. Only when this is not
- * the start of a paragraph.
- */
- if (prev_line && !paragraph_start(curwin->w_cursor.lnum)) {
- curwin->w_cursor.lnum--;
- if (u_save_cursor() == FAIL) {
- return;
- }
- }
-
- /*
- * Do the formatting and restore the cursor position. "saved_cursor" will
- * be adjusted for the text formatting.
- */
- saved_cursor = pos;
- format_lines((linenr_T) - 1, false);
- curwin->w_cursor = saved_cursor;
- saved_cursor.lnum = 0;
-
- if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) {
- // "cannot happen"
- curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
- coladvance(MAXCOL);
- } else {
- check_cursor_col();
- }
-
- // Insert mode: If the cursor is now after the end of the line while it
- // previously wasn't, the line was broken. Because of the rule above we
- // need to add a space when 'w' is in 'formatoptions' to keep a paragraph
- // formatted.
- if (!wasatend && has_format_option(FO_WHITE_PAR)) {
- new = get_cursor_line_ptr();
- len = (colnr_T)STRLEN(new);
- if (curwin->w_cursor.col == len) {
- pnew = vim_strnsave(new, (size_t)len + 2);
- pnew[len] = ' ';
- pnew[len + 1] = NUL;
- ml_replace(curwin->w_cursor.lnum, (char *)pnew, false);
- // remove the space later
- did_add_space = true;
- } else {
- // may remove added space
- check_auto_format(false);
- }
- }
-
- check_cursor();
-}
-
-/// When an extra space was added to continue a paragraph for auto-formatting,
-/// delete it now. The space must be under the cursor, just after the insert
-/// position.
-///
-/// @param end_insert true when ending Insert mode
-static void check_auto_format(bool end_insert)
-{
- int c = ' ';
- int cc;
-
- if (did_add_space) {
- cc = gchar_cursor();
- if (!WHITECHAR(cc)) {
- // Somehow the space was removed already.
- did_add_space = false;
- } else {
- if (!end_insert) {
- inc_cursor();
- c = gchar_cursor();
- dec_cursor();
- }
- if (c != NUL) {
- // The space is no longer at the end of the line, delete it.
- del_char(false);
- did_add_space = false;
- }
- }
- }
-}
-
-/// Find out textwidth to be used for formatting:
-/// if 'textwidth' option is set, use it
-/// else if 'wrapmargin' option is set, use curwin->w_width_inner-'wrapmargin'
-/// if invalid value, use 0.
-/// Set default to window width (maximum 79) for "gq" operator.
-///
-/// @param ff force formatting (for "gq" command)
-int comp_textwidth(bool ff)
-{
- int textwidth = (int)curbuf->b_p_tw;
- if (textwidth == 0 && curbuf->b_p_wm) {
- // The width is the window width minus 'wrapmargin' minus all the
- // things that add to the margin.
- textwidth = curwin->w_width_inner - (int)curbuf->b_p_wm;
- if (cmdwin_type != 0) {
- textwidth -= 1;
- }
- textwidth -= win_fdccol_count(curwin);
- textwidth -= win_signcol_count(curwin);
-
- if (curwin->w_p_nu || curwin->w_p_rnu) {
- textwidth -= 8;
- }
- }
- if (textwidth < 0) {
- textwidth = 0;
- }
- if (ff && textwidth == 0) {
- textwidth = curwin->w_width_inner - 1;
- if (textwidth > 79) {
- textwidth = 79;
- }
- }
- return textwidth;
-}
-
/*
* Put a character in the redo buffer, for when just after a CTRL-V.
*/
@@ -5665,6 +5068,11 @@ bool get_can_cindent(void)
return can_cindent;
}
+void set_can_cindent(bool val)
+{
+ can_cindent = val;
+}
+
/// Trigger "event" and take care of fixing undo.
int ins_apply_autocmds(event_T event)
{
generated by cgit (git 2.34.1) at 2025-04-28 22:32:55 +0000