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neovim/src/nvim/mark.c

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// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
/*
* mark.c: functions for setting marks and jumping to them
*/
#include <assert.h>
#include <inttypes.h>
#include <string.h>
#include <limits.h>
#include "nvim/vim.h"
#include "nvim/ascii.h"
#include "nvim/mark.h"
#include "nvim/buffer.h"
#include "nvim/charset.h"
#include "nvim/diff.h"
#include "nvim/eval.h"
#include "nvim/ex_cmds.h"
#include "nvim/fileio.h"
#include "nvim/fold.h"
#include "nvim/mbyte.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/normal.h"
#include "nvim/option.h"
#include "nvim/path.h"
#include "nvim/quickfix.h"
#include "nvim/search.h"
#include "nvim/sign.h"
#include "nvim/strings.h"
#include "nvim/ui.h"
#include "nvim/os/os.h"
#include "nvim/os/time.h"
#include "nvim/os/input.h"
/*
* This file contains routines to maintain and manipulate marks.
*/
/*
* If a named file mark's lnum is non-zero, it is valid.
* If a named file mark's fnum is non-zero, it is for an existing buffer,
* otherwise it is from .shada and namedfm[n].fname is the file name.
* There are marks 'A - 'Z (set by user) and '0 to '9 (set when writing
* shada).
*/
/// Global marks (marks with file number or name)
static xfmark_T namedfm[NGLOBALMARKS];
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "mark.c.generated.h"
#endif
/*
* Set named mark "c" at current cursor position.
* Returns OK on success, FAIL if bad name given.
*/
int setmark(int c)
{
return setmark_pos(c, &curwin->w_cursor, curbuf->b_fnum);
}
/// Free fmark_T item
void free_fmark(fmark_T fm)
{
tv_dict_unref(fm.additional_data);
}
/// Free xfmark_T item
void free_xfmark(xfmark_T fm)
{
xfree(fm.fname);
free_fmark(fm.fmark);
}
/// Free and clear fmark_T item
void clear_fmark(fmark_T *fm)
FUNC_ATTR_NONNULL_ALL
{
free_fmark(*fm);
memset(fm, 0, sizeof(*fm));
}
/*
* Set named mark "c" to position "pos".
* When "c" is upper case use file "fnum".
* Returns OK on success, FAIL if bad name given.
*/
int setmark_pos(int c, pos_T *pos, int fnum)
{
int i;
/* Check for a special key (may cause islower() to crash). */
if (c < 0)
return FAIL;
if (c == '\'' || c == '`') {
if (pos == &curwin->w_cursor) {
setpcmark();
/* keep it even when the cursor doesn't move */
curwin->w_prev_pcmark = curwin->w_pcmark;
} else
curwin->w_pcmark = *pos;
return OK;
}
// Can't set a mark in a non-existant buffer.
buf_T *buf = buflist_findnr(fnum);
if (buf == NULL) {
return FAIL;
}
if (c == '"') {
RESET_FMARK(&buf->b_last_cursor, *pos, buf->b_fnum);
return OK;
}
/* Allow setting '[ and '] for an autocommand that simulates reading a
* file. */
if (c == '[') {
buf->b_op_start = *pos;
return OK;
}
if (c == ']') {
buf->b_op_end = *pos;
return OK;
}
if (c == '<' || c == '>') {
if (c == '<') {
buf->b_visual.vi_start = *pos;
} else {
buf->b_visual.vi_end = *pos;
}
if (buf->b_visual.vi_mode == NUL) {
// Visual_mode has not yet been set, use a sane default.
buf->b_visual.vi_mode = 'v';
}
return OK;
}
if (ASCII_ISLOWER(c)) {
i = c - 'a';
RESET_FMARK(buf->b_namedm + i, *pos, fnum);
return OK;
}
if (ASCII_ISUPPER(c) || ascii_isdigit(c)) {
if (ascii_isdigit(c)) {
i = c - '0' + NMARKS;
} else {
i = c - 'A';
}
RESET_XFMARK(namedfm + i, *pos, fnum, NULL);
return OK;
}
return FAIL;
}
/*
* Set the previous context mark to the current position and add it to the
* jump list.
*/
void setpcmark(void)
{
xfmark_T *fm;
/* for :global the mark is set only once */
if (global_busy || listcmd_busy || cmdmod.keepjumps)
return;
curwin->w_prev_pcmark = curwin->w_pcmark;
curwin->w_pcmark = curwin->w_cursor;
if (curwin->w_pcmark.lnum == 0) {
curwin->w_pcmark.lnum = 1;
}
/* If jumplist is full: remove oldest entry */
if (++curwin->w_jumplistlen > JUMPLISTSIZE) {
curwin->w_jumplistlen = JUMPLISTSIZE;
free_xfmark(curwin->w_jumplist[0]);
memmove(&curwin->w_jumplist[0], &curwin->w_jumplist[1],
(JUMPLISTSIZE - 1) * sizeof(curwin->w_jumplist[0]));
}
curwin->w_jumplistidx = curwin->w_jumplistlen;
fm = &curwin->w_jumplist[curwin->w_jumplistlen - 1];
SET_XFMARK(fm, curwin->w_pcmark, curbuf->b_fnum, NULL);
}
/*
* To change context, call setpcmark(), then move the current position to
* where ever, then call checkpcmark(). This ensures that the previous
* context will only be changed if the cursor moved to a different line.
* If pcmark was deleted (with "dG") the previous mark is restored.
*/
void checkpcmark(void)
{
if (curwin->w_prev_pcmark.lnum != 0
&& (equalpos(curwin->w_pcmark, curwin->w_cursor)
|| curwin->w_pcmark.lnum == 0)) {
curwin->w_pcmark = curwin->w_prev_pcmark;
curwin->w_prev_pcmark.lnum = 0; /* Show it has been checked */
}
}
/*
* move "count" positions in the jump list (count may be negative)
*/
pos_T *movemark(int count)
{
pos_T *pos;
xfmark_T *jmp;
cleanup_jumplist(curwin, true);
if (curwin->w_jumplistlen == 0) /* nothing to jump to */
return (pos_T *)NULL;
for (;; ) {
if (curwin->w_jumplistidx + count < 0
|| curwin->w_jumplistidx + count >= curwin->w_jumplistlen)
return (pos_T *)NULL;
/*
* if first CTRL-O or CTRL-I command after a jump, add cursor position
* to list. Careful: If there are duplicates (CTRL-O immediately after
* starting Vim on a file), another entry may have been removed.
*/
if (curwin->w_jumplistidx == curwin->w_jumplistlen) {
setpcmark();
--curwin->w_jumplistidx; /* skip the new entry */
if (curwin->w_jumplistidx + count < 0)
return (pos_T *)NULL;
}
curwin->w_jumplistidx += count;
jmp = curwin->w_jumplist + curwin->w_jumplistidx;
if (jmp->fmark.fnum == 0)
fname2fnum(jmp);
if (jmp->fmark.fnum != curbuf->b_fnum) {
/* jump to other file */
if (buflist_findnr(jmp->fmark.fnum) == NULL) { /* Skip this one .. */
count += count < 0 ? -1 : 1;
continue;
}
if (buflist_getfile(jmp->fmark.fnum, jmp->fmark.mark.lnum,
0, FALSE) == FAIL)
return (pos_T *)NULL;
/* Set lnum again, autocommands my have changed it */
curwin->w_cursor = jmp->fmark.mark;
pos = (pos_T *)-1;
} else
pos = &(jmp->fmark.mark);
return pos;
}
}
/*
* Move "count" positions in the changelist (count may be negative).
*/
pos_T *movechangelist(int count)
{
int n;
if (curbuf->b_changelistlen == 0) /* nothing to jump to */
return (pos_T *)NULL;
n = curwin->w_changelistidx;
if (n + count < 0) {
if (n == 0)
return (pos_T *)NULL;
n = 0;
} else if (n + count >= curbuf->b_changelistlen) {
if (n == curbuf->b_changelistlen - 1)
return (pos_T *)NULL;
n = curbuf->b_changelistlen - 1;
} else
n += count;
curwin->w_changelistidx = n;
return &(curbuf->b_changelist[n].mark);
}
/*
* Find mark "c" in buffer pointed to by "buf".
* If "changefile" is TRUE it's allowed to edit another file for '0, 'A, etc.
* If "fnum" is not NULL store the fnum there for '0, 'A etc., don't edit
* another file.
* Returns:
* - pointer to pos_T if found. lnum is 0 when mark not set, -1 when mark is
* in another file which can't be gotten. (caller needs to check lnum!)
* - NULL if there is no mark called 'c'.
* - -1 if mark is in other file and jumped there (only if changefile is TRUE)
*/
pos_T *getmark_buf(buf_T *buf, int c, bool changefile)
{
return getmark_buf_fnum(buf, c, changefile, NULL);
}
pos_T *getmark(int c, bool changefile)
{
return getmark_buf_fnum(curbuf, c, changefile, NULL);
}
pos_T *getmark_buf_fnum(buf_T *buf, int c, bool changefile, int *fnum)
{
pos_T *posp;
pos_T *startp, *endp;
static pos_T pos_copy;
posp = NULL;
/* Check for special key, can't be a mark name and might cause islower()
* to crash. */
if (c < 0)
return posp;
if (c > '~') { // check for islower()/isupper()
} else if (c == '\'' || c == '`') { // previous context mark
pos_copy = curwin->w_pcmark; // need to make a copy because
posp = &pos_copy; // w_pcmark may be changed soon
} else if (c == '"') { // to pos when leaving buffer
posp = &(buf->b_last_cursor.mark);
} else if (c == '^') { // to where Insert mode stopped
posp = &(buf->b_last_insert.mark);
} else if (c == '.') { // to where last change was made
posp = &(buf->b_last_change.mark);
} else if (c == '[') { // to start of previous operator
posp = &(buf->b_op_start);
} else if (c == ']') { // to end of previous operator
posp = &(buf->b_op_end);
} else if (c == '{' || c == '}') { // to previous/next paragraph
pos_T pos;
oparg_T oa;
int slcb = listcmd_busy;
pos = curwin->w_cursor;
listcmd_busy = TRUE; /* avoid that '' is changed */
if (findpar(&oa.inclusive,
c == '}' ? FORWARD : BACKWARD, 1L, NUL, FALSE)) {
pos_copy = curwin->w_cursor;
posp = &pos_copy;
}
curwin->w_cursor = pos;
listcmd_busy = slcb;
} else if (c == '(' || c == ')') { /* to previous/next sentence */
pos_T pos;
int slcb = listcmd_busy;
pos = curwin->w_cursor;
listcmd_busy = TRUE; /* avoid that '' is changed */
if (findsent(c == ')' ? FORWARD : BACKWARD, 1L)) {
pos_copy = curwin->w_cursor;
posp = &pos_copy;
}
curwin->w_cursor = pos;
listcmd_busy = slcb;
} else if (c == '<' || c == '>') { /* start/end of visual area */
startp = &buf->b_visual.vi_start;
endp = &buf->b_visual.vi_end;
if (((c == '<') == lt(*startp, *endp) || endp->lnum == 0)
&& startp->lnum != 0) {
posp = startp;
} else {
posp = endp;
}
// For Visual line mode, set mark at begin or end of line
if (buf->b_visual.vi_mode == 'V') {
pos_copy = *posp;
posp = &pos_copy;
if (c == '<')
pos_copy.col = 0;
else
pos_copy.col = MAXCOL;
pos_copy.coladd = 0;
}
} else if (ASCII_ISLOWER(c)) { /* normal named mark */
posp = &(buf->b_namedm[c - 'a'].mark);
} else if (ASCII_ISUPPER(c) || ascii_isdigit(c)) { /* named file mark */
if (ascii_isdigit(c))
c = c - '0' + NMARKS;
else
c -= 'A';
posp = &(namedfm[c].fmark.mark);
if (namedfm[c].fmark.fnum == 0) {
fname2fnum(&namedfm[c]);
}
if (fnum != NULL)
*fnum = namedfm[c].fmark.fnum;
else if (namedfm[c].fmark.fnum != buf->b_fnum) {
/* mark is in another file */
posp = &pos_copy;
if (namedfm[c].fmark.mark.lnum != 0
&& changefile && namedfm[c].fmark.fnum) {
if (buflist_getfile(namedfm[c].fmark.fnum,
(linenr_T)1, GETF_SETMARK, FALSE) == OK) {
/* Set the lnum now, autocommands could have changed it */
curwin->w_cursor = namedfm[c].fmark.mark;
return (pos_T *)-1;
}
pos_copy.lnum = -1; /* can't get file */
} else
pos_copy.lnum = 0; /* mark exists, but is not valid in
current buffer */
}
}
return posp;
}
/*
* Search for the next named mark in the current file.
*
* Returns pointer to pos_T of the next mark or NULL if no mark is found.
*/
pos_T *
getnextmark (
pos_T *startpos, /* where to start */
int dir, /* direction for search */
int begin_line
)
{
int i;
pos_T *result = NULL;
pos_T pos;
pos = *startpos;
/* When searching backward and leaving the cursor on the first non-blank,
* position must be in a previous line.
* When searching forward and leaving the cursor on the first non-blank,
* position must be in a next line. */
if (dir == BACKWARD && begin_line)
pos.col = 0;
else if (dir == FORWARD && begin_line)
pos.col = MAXCOL;
for (i = 0; i < NMARKS; i++) {
if (curbuf->b_namedm[i].mark.lnum > 0) {
if (dir == FORWARD) {
if ((result == NULL || lt(curbuf->b_namedm[i].mark, *result))
&& lt(pos, curbuf->b_namedm[i].mark))
result = &curbuf->b_namedm[i].mark;
} else {
if ((result == NULL || lt(*result, curbuf->b_namedm[i].mark))
&& lt(curbuf->b_namedm[i].mark, pos))
result = &curbuf->b_namedm[i].mark;
}
}
}
return result;
}
/*
* For an xtended filemark: set the fnum from the fname.
* This is used for marks obtained from the .shada file. It's postponed
* until the mark is used to avoid a long startup delay.
*/
static void fname2fnum(xfmark_T *fm)
{
char_u *p;
if (fm->fname != NULL) {
/*
* First expand "~/" in the file name to the home directory.
* Don't expand the whole name, it may contain other '~' chars.
*/
if (fm->fname[0] == '~' && (fm->fname[1] == '/'
#ifdef BACKSLASH_IN_FILENAME
|| fm->fname[1] == '\\'
#endif
)) {
int len;
expand_env((char_u *)"~/", NameBuff, MAXPATHL);
len = (int)STRLEN(NameBuff);
STRLCPY(NameBuff + len, fm->fname + 2, MAXPATHL - len);
} else
STRLCPY(NameBuff, fm->fname, MAXPATHL);
/* Try to shorten the file name. */
os_dirname(IObuff, IOSIZE);
p = path_shorten_fname(NameBuff, IObuff);
// buflist_new() will call fmarks_check_names()
(void)buflist_new(NameBuff, p, (linenr_T)1, 0);
}
}
/*
* Check all file marks for a name that matches the file name in buf.
* May replace the name with an fnum.
* Used for marks that come from the .shada file.
*/
void fmarks_check_names(buf_T *buf)
{
char_u *name = buf->b_ffname;
int i;
if (buf->b_ffname == NULL)
return;
for (i = 0; i < NGLOBALMARKS; ++i)
fmarks_check_one(&namedfm[i], name, buf);
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
for (i = 0; i < wp->w_jumplistlen; ++i) {
fmarks_check_one(&wp->w_jumplist[i], name, buf);
}
}
}
static void fmarks_check_one(xfmark_T *fm, char_u *name, buf_T *buf)
{
if (fm->fmark.fnum == 0
&& fm->fname != NULL
&& fnamecmp(name, fm->fname) == 0) {
fm->fmark.fnum = buf->b_fnum;
XFREE_CLEAR(fm->fname);
}
}
/*
* Check a if a position from a mark is valid.
* Give and error message and return FAIL if not.
*/
int check_mark(pos_T *pos)
{
if (pos == NULL) {
EMSG(_(e_umark));
return FAIL;
}
if (pos->lnum <= 0) {
/* lnum is negative if mark is in another file can can't get that
* file, error message already give then. */
if (pos->lnum == 0)
EMSG(_(e_marknotset));
return FAIL;
}
if (pos->lnum > curbuf->b_ml.ml_line_count) {
EMSG(_(e_markinval));
return FAIL;
}
return OK;
}
/// Clear all marks and change list in the given buffer
///
/// Used mainly when trashing the entire buffer during ":e" type commands.
///
/// @param[out] buf Buffer to clear marks in.
void clrallmarks(buf_T *const buf)
FUNC_ATTR_NONNULL_ALL
{
for (size_t i = 0; i < NMARKS; i++) {
clear_fmark(&buf->b_namedm[i]);
}
clear_fmark(&buf->b_last_cursor);
buf->b_last_cursor.mark.lnum = 1;
clear_fmark(&buf->b_last_insert);
clear_fmark(&buf->b_last_change);
buf->b_op_start.lnum = 0; // start/end op mark cleared
buf->b_op_end.lnum = 0;
for (int i = 0; i < buf->b_changelistlen; i++) {
clear_fmark(&buf->b_changelist[i]);
}
buf->b_changelistlen = 0;
}
/*
* Get name of file from a filemark.
* When it's in the current buffer, return the text at the mark.
* Returns an allocated string.
*/
char_u *fm_getname(fmark_T *fmark, int lead_len)
{
if (fmark->fnum == curbuf->b_fnum) /* current buffer */
return mark_line(&(fmark->mark), lead_len);
return buflist_nr2name(fmark->fnum, FALSE, TRUE);
}
/*
* Return the line at mark "mp". Truncate to fit in window.
* The returned string has been allocated.
*/
static char_u *mark_line(pos_T *mp, int lead_len)
{
char_u *s, *p;
int len;
if (mp->lnum == 0 || mp->lnum > curbuf->b_ml.ml_line_count)
return vim_strsave((char_u *)"-invalid-");
assert(Columns >= 0 && (size_t)Columns <= SIZE_MAX);
// Allow for up to 5 bytes per character.
s = vim_strnsave(skipwhite(ml_get(mp->lnum)), (size_t)Columns * 5);
// Truncate the line to fit it in the window
len = 0;
for (p = s; *p != NUL; MB_PTR_ADV(p)) {
len += ptr2cells(p);
if (len >= Columns - lead_len)
break;
}
*p = NUL;
return s;
}
/*
* print the marks
*/
void ex_marks(exarg_T *eap)
{
char_u *arg = eap->arg;
int i;
char_u *name;
if (arg != NULL && *arg == NUL)
arg = NULL;
show_one_mark('\'', arg, &curwin->w_pcmark, NULL, true);
for (i = 0; i < NMARKS; ++i)
show_one_mark(i + 'a', arg, &curbuf->b_namedm[i].mark, NULL, true);
for (i = 0; i < NGLOBALMARKS; ++i) {
if (namedfm[i].fmark.fnum != 0)
name = fm_getname(&namedfm[i].fmark, 15);
else
name = namedfm[i].fname;
if (name != NULL) {
show_one_mark(i >= NMARKS ? i - NMARKS + '0' : i + 'A',
arg, &namedfm[i].fmark.mark, name,
namedfm[i].fmark.fnum == curbuf->b_fnum);
if (namedfm[i].fmark.fnum != 0)
xfree(name);
}
}
show_one_mark('"', arg, &curbuf->b_last_cursor.mark, NULL, true);
show_one_mark('[', arg, &curbuf->b_op_start, NULL, true);
show_one_mark(']', arg, &curbuf->b_op_end, NULL, true);
show_one_mark('^', arg, &curbuf->b_last_insert.mark, NULL, true);
show_one_mark('.', arg, &curbuf->b_last_change.mark, NULL, true);
show_one_mark('<', arg, &curbuf->b_visual.vi_start, NULL, true);
show_one_mark('>', arg, &curbuf->b_visual.vi_end, NULL, true);
show_one_mark(-1, arg, NULL, NULL, false);
}
static void
show_one_mark(
int c,
char_u *arg,
pos_T *p,
char_u *name_arg,
int current // in current file
)
{
static bool did_title = false;
bool mustfree = false;
char_u *name = name_arg;
if (c == -1) { // finish up
if (did_title) {
did_title = false;
} else {
if (arg == NULL) {
MSG(_("No marks set"));
} else {
EMSG2(_("E283: No marks matching \"%s\""), arg);
}
}
} else if (!got_int
&& (arg == NULL || vim_strchr(arg, c) != NULL)
&& p->lnum != 0) {
// don't output anything if 'q' typed at --more-- prompt
if (name == NULL && current) {
name = mark_line(p, 15);
mustfree = true;
}
if (!message_filtered(name)) {
if (!did_title) {
// Highlight title
msg_puts_title(_("\nmark line col file/text"));
did_title = true;
}
msg_putchar('\n');
if (!got_int) {
snprintf((char *)IObuff, IOSIZE, " %c %6ld %4d ", c, p->lnum, p->col);
msg_outtrans(IObuff);
if (name != NULL) {
msg_outtrans_attr(name, current ? HL_ATTR(HLF_D) : 0);
}
}
ui_flush(); // show one line at a time
}
if (mustfree) {
xfree(name);
}
}
}
/*
* ":delmarks[!] [marks]"
*/
void ex_delmarks(exarg_T *eap)
{
char_u *p;
int from, to;
int i;
int lower;
int digit;
int n;
if (*eap->arg == NUL && eap->forceit)
/* clear all marks */
clrallmarks(curbuf);
else if (eap->forceit)
EMSG(_(e_invarg));
else if (*eap->arg == NUL)
EMSG(_(e_argreq));
else {
/* clear specified marks only */
for (p = eap->arg; *p != NUL; ++p) {
lower = ASCII_ISLOWER(*p);
digit = ascii_isdigit(*p);
if (lower || digit || ASCII_ISUPPER(*p)) {
if (p[1] == '-') {
/* clear range of marks */
from = *p;
to = p[2];
if (!(lower ? ASCII_ISLOWER(p[2])
: (digit ? ascii_isdigit(p[2])
: ASCII_ISUPPER(p[2])))
|| to < from) {
EMSG2(_(e_invarg2), p);
return;
}
p += 2;
} else
/* clear one lower case mark */
from = to = *p;
for (i = from; i <= to; ++i) {
if (lower) {
curbuf->b_namedm[i - 'a'].mark.lnum = 0;
} else {
if (digit) {
n = i - '0' + NMARKS;
} else {
n = i - 'A';
}
namedfm[n].fmark.mark.lnum = 0;
XFREE_CLEAR(namedfm[n].fname);
}
}
} else
switch (*p) {
case '"': CLEAR_FMARK(&curbuf->b_last_cursor); break;
case '^': CLEAR_FMARK(&curbuf->b_last_insert); break;
case '.': CLEAR_FMARK(&curbuf->b_last_change); break;
case '[': curbuf->b_op_start.lnum = 0; break;
case ']': curbuf->b_op_end.lnum = 0; break;
case '<': curbuf->b_visual.vi_start.lnum = 0; break;
case '>': curbuf->b_visual.vi_end.lnum = 0; break;
case ' ': break;
default: EMSG2(_(e_invarg2), p);
return;
}
}
}
}
/*
* print the jumplist
*/
void ex_jumps(exarg_T *eap)
{
int i;
char_u *name;
cleanup_jumplist(curwin, true);
// Highlight title
MSG_PUTS_TITLE(_("\n jump line col file/text"));
for (i = 0; i < curwin->w_jumplistlen && !got_int; ++i) {
if (curwin->w_jumplist[i].fmark.mark.lnum != 0) {
name = fm_getname(&curwin->w_jumplist[i].fmark, 16);
// apply :filter /pat/ or file name not available
if (name == NULL || message_filtered(name)) {
xfree(name);
continue;
}
msg_putchar('\n');
if (got_int) {
xfree(name);
break;
}
sprintf((char *)IObuff, "%c %2d %5ld %4d ",
i == curwin->w_jumplistidx ? '>' : ' ',
i > curwin->w_jumplistidx ? i - curwin->w_jumplistidx
: curwin->w_jumplistidx - i,
curwin->w_jumplist[i].fmark.mark.lnum,
curwin->w_jumplist[i].fmark.mark.col);
msg_outtrans(IObuff);
msg_outtrans_attr(name,
curwin->w_jumplist[i].fmark.fnum == curbuf->b_fnum
? HL_ATTR(HLF_D) : 0);
xfree(name);
os_breakcheck();
}
ui_flush();
}
if (curwin->w_jumplistidx == curwin->w_jumplistlen)
MSG_PUTS("\n>");
}
void ex_clearjumps(exarg_T *eap)
{
free_jumplist(curwin);
curwin->w_jumplistlen = 0;
curwin->w_jumplistidx = 0;
}
/*
* print the changelist
*/
void ex_changes(exarg_T *eap)
{
int i;
char_u *name;
// Highlight title
MSG_PUTS_TITLE(_("\nchange line col text"));
for (i = 0; i < curbuf->b_changelistlen && !got_int; ++i) {
if (curbuf->b_changelist[i].mark.lnum != 0) {
msg_putchar('\n');
if (got_int)
break;
sprintf((char *)IObuff, "%c %3d %5ld %4d ",
i == curwin->w_changelistidx ? '>' : ' ',
i > curwin->w_changelistidx ? i - curwin->w_changelistidx
: curwin->w_changelistidx - i,
(long)curbuf->b_changelist[i].mark.lnum,
curbuf->b_changelist[i].mark.col);
msg_outtrans(IObuff);
name = mark_line(&curbuf->b_changelist[i].mark, 17);
msg_outtrans_attr(name, HL_ATTR(HLF_D));
xfree(name);
os_breakcheck();
}
ui_flush();
}
if (curwin->w_changelistidx == curbuf->b_changelistlen)
MSG_PUTS("\n>");
}
#define one_adjust(add) \
{ \
lp = add; \
if (*lp >= line1 && *lp <= line2) \
{ \
if (amount == MAXLNUM) \
*lp = 0; \
else \
*lp += amount; \
} \
else if (amount_after && *lp > line2) \
*lp += amount_after; \
}
/* don't delete the line, just put at first deleted line */
#define one_adjust_nodel(add) \
{ \
lp = add; \
if (*lp >= line1 && *lp <= line2) \
{ \
if (amount == MAXLNUM) \
*lp = line1; \
else \
*lp += amount; \
} \
else if (amount_after && *lp > line2) \
*lp += amount_after; \
}
/*
* Adjust marks between line1 and line2 (inclusive) to move 'amount' lines.
* Must be called before changed_*(), appended_lines() or deleted_lines().
* May be called before or after changing the text.
* When deleting lines line1 to line2, use an 'amount' of MAXLNUM: The marks
* within this range are made invalid.
* If 'amount_after' is non-zero adjust marks after line2.
* Example: Delete lines 34 and 35: mark_adjust(34, 35, MAXLNUM, -2);
* Example: Insert two lines below 55: mark_adjust(56, MAXLNUM, 2, 0);
* or: mark_adjust(56, 55, MAXLNUM, 2);
*/
void mark_adjust(linenr_T line1,
linenr_T line2,
long amount,
long amount_after,
bool end_temp)
{
mark_adjust_internal(line1, line2, amount, amount_after, true, end_temp);
}
// mark_adjust_nofold() does the same as mark_adjust() but without adjusting
// folds in any way. Folds must be adjusted manually by the caller.
// This is only useful when folds need to be moved in a way different to
// calling foldMarkAdjust() with arguments line1, line2, amount, amount_after,
// for an example of why this may be necessary, see do_move().
void mark_adjust_nofold(linenr_T line1, linenr_T line2, long amount,
long amount_after, bool end_temp)
{
mark_adjust_internal(line1, line2, amount, amount_after, false, end_temp);
}
static void mark_adjust_internal(linenr_T line1, linenr_T line2,
long amount, long amount_after,
bool adjust_folds, bool end_temp)
{
int i;
int fnum = curbuf->b_fnum;
linenr_T *lp;
static pos_T initpos = { 1, 0, 0 };
if (line2 < line1 && amount_after == 0L) /* nothing to do */
return;
if (!cmdmod.lockmarks) {
/* named marks, lower case and upper case */
for (i = 0; i < NMARKS; i++) {
one_adjust(&(curbuf->b_namedm[i].mark.lnum));
if (namedfm[i].fmark.fnum == fnum)
one_adjust_nodel(&(namedfm[i].fmark.mark.lnum));
}
for (i = NMARKS; i < NGLOBALMARKS; i++) {
if (namedfm[i].fmark.fnum == fnum)
one_adjust_nodel(&(namedfm[i].fmark.mark.lnum));
}
/* last Insert position */
one_adjust(&(curbuf->b_last_insert.mark.lnum));
/* last change position */
one_adjust(&(curbuf->b_last_change.mark.lnum));
/* last cursor position, if it was set */
if (!equalpos(curbuf->b_last_cursor.mark, initpos))
one_adjust(&(curbuf->b_last_cursor.mark.lnum));
/* list of change positions */
for (i = 0; i < curbuf->b_changelistlen; ++i)
one_adjust_nodel(&(curbuf->b_changelist[i].mark.lnum));
/* Visual area */
one_adjust_nodel(&(curbuf->b_visual.vi_start.lnum));
one_adjust_nodel(&(curbuf->b_visual.vi_end.lnum));
// quickfix marks
if (!qf_mark_adjust(NULL, line1, line2, amount, amount_after)) {
curbuf->b_has_qf_entry &= ~BUF_HAS_QF_ENTRY;
}
// location lists
bool found_one = false;
FOR_ALL_TAB_WINDOWS(tab, win) {
found_one |= qf_mark_adjust(win, line1, line2, amount, amount_after);
}
if (!found_one) {
curbuf->b_has_qf_entry &= ~BUF_HAS_LL_ENTRY;
}
sign_mark_adjust(line1, line2, amount, amount_after);
bufhl_mark_adjust(curbuf, line1, line2, amount, amount_after, end_temp);
}
/* previous context mark */
one_adjust(&(curwin->w_pcmark.lnum));
/* previous pcmark */
one_adjust(&(curwin->w_prev_pcmark.lnum));
/* saved cursor for formatting */
if (saved_cursor.lnum != 0)
one_adjust_nodel(&(saved_cursor.lnum));
/*
* Adjust items in all windows related to the current buffer.
*/
FOR_ALL_TAB_WINDOWS(tab, win) {
if (!cmdmod.lockmarks) {
/* Marks in the jumplist. When deleting lines, this may create
* duplicate marks in the jumplist, they will be removed later. */
for (i = 0; i < win->w_jumplistlen; ++i) {
if (win->w_jumplist[i].fmark.fnum == fnum) {
one_adjust_nodel(&(win->w_jumplist[i].fmark.mark.lnum));
}
}
}
if (win->w_buffer == curbuf) {
if (!cmdmod.lockmarks) {
/* marks in the tag stack */
for (i = 0; i < win->w_tagstacklen; i++) {
if (win->w_tagstack[i].fmark.fnum == fnum) {
one_adjust_nodel(&(win->w_tagstack[i].fmark.mark.lnum));
}
}
}
/* the displayed Visual area */
if (win->w_old_cursor_lnum != 0) {
one_adjust_nodel(&(win->w_old_cursor_lnum));
one_adjust_nodel(&(win->w_old_visual_lnum));
}
/* topline and cursor position for windows with the same buffer
* other than the current window */
if (win != curwin) {
if (win->w_topline >= line1 && win->w_topline <= line2) {
if (amount == MAXLNUM) { /* topline is deleted */
if (line1 <= 1) {
win->w_topline = 1;
} else {
win->w_topline = line1 - 1;
}
} else { /* keep topline on the same line */
win->w_topline += amount;
}
win->w_topfill = 0;
} else if (amount_after && win->w_topline > line2) {
win->w_topline += amount_after;
win->w_topfill = 0;
}
if (win->w_cursor.lnum >= line1 && win->w_cursor.lnum <= line2) {
if (amount == MAXLNUM) { /* line with cursor is deleted */
if (line1 <= 1) {
win->w_cursor.lnum = 1;
} else {
win->w_cursor.lnum = line1 - 1;
}
win->w_cursor.col = 0;
} else { /* keep cursor on the same line */
win->w_cursor.lnum += amount;
}
} else if (amount_after && win->w_cursor.lnum > line2) {
win->w_cursor.lnum += amount_after;
}
}
if (adjust_folds) {
foldMarkAdjust(win, line1, line2, amount, amount_after);
}
}
}
/* adjust diffs */
diff_mark_adjust(line1, line2, amount, amount_after);
}
/* This code is used often, needs to be fast. */
#define col_adjust(pp) \
{ \
posp = pp; \
if (posp->lnum == lnum && posp->col >= mincol) \
{ \
posp->lnum += lnum_amount; \
assert(col_amount > INT_MIN && col_amount <= INT_MAX); \
if (col_amount < 0 && posp->col <= (colnr_T)-col_amount) { \
posp->col = 0; \
} else if (posp->col < spaces_removed) { \
posp->col = (int)col_amount + spaces_removed; \
} else { \
posp->col += (colnr_T)col_amount; \
} \
} \
}
// Adjust marks in line "lnum" at column "mincol" and further: add
// "lnum_amount" to the line number and add "col_amount" to the column
// position.
// "spaces_removed" is the number of spaces that were removed, matters when the
// cursor is inside them.
void mark_col_adjust(
linenr_T lnum, colnr_T mincol, long lnum_amount, long col_amount,
int spaces_removed)
{
int i;
int fnum = curbuf->b_fnum;
pos_T *posp;
if ((col_amount == 0L && lnum_amount == 0L) || cmdmod.lockmarks)
return; /* nothing to do */
/* named marks, lower case and upper case */
for (i = 0; i < NMARKS; i++) {
col_adjust(&(curbuf->b_namedm[i].mark));
if (namedfm[i].fmark.fnum == fnum)
col_adjust(&(namedfm[i].fmark.mark));
}
for (i = NMARKS; i < NGLOBALMARKS; i++) {
if (namedfm[i].fmark.fnum == fnum)
col_adjust(&(namedfm[i].fmark.mark));
}
/* last Insert position */
col_adjust(&(curbuf->b_last_insert.mark));
/* last change position */
col_adjust(&(curbuf->b_last_change.mark));
/* list of change positions */
for (i = 0; i < curbuf->b_changelistlen; ++i)
col_adjust(&(curbuf->b_changelist[i].mark));
/* Visual area */
col_adjust(&(curbuf->b_visual.vi_start));
col_adjust(&(curbuf->b_visual.vi_end));
/* previous context mark */
col_adjust(&(curwin->w_pcmark));
/* previous pcmark */
col_adjust(&(curwin->w_prev_pcmark));
/* saved cursor for formatting */
col_adjust(&saved_cursor);
/*
* Adjust items in all windows related to the current buffer.
*/
FOR_ALL_WINDOWS_IN_TAB(win, curtab) {
/* marks in the jumplist */
for (i = 0; i < win->w_jumplistlen; ++i) {
if (win->w_jumplist[i].fmark.fnum == fnum) {
col_adjust(&(win->w_jumplist[i].fmark.mark));
}
}
if (win->w_buffer == curbuf) {
/* marks in the tag stack */
for (i = 0; i < win->w_tagstacklen; i++) {
if (win->w_tagstack[i].fmark.fnum == fnum) {
col_adjust(&(win->w_tagstack[i].fmark.mark));
}
}
/* cursor position for other windows with the same buffer */
if (win != curwin) {
col_adjust(&win->w_cursor);
}
}
}
}
// When deleting lines, this may create duplicate marks in the
// jumplist. They will be removed here for the specified window.
// When "checktail" is true, removes tail jump if it matches current position.
void cleanup_jumplist(win_T *wp, bool checktail)
{
int i;
// Load all the files from the jump list. This is
// needed to properly clean up duplicate entries, but will take some
// time.
for (i = 0; i < wp->w_jumplistlen; i++) {
if ((wp->w_jumplist[i].fmark.fnum == 0)
&& (wp->w_jumplist[i].fmark.mark.lnum != 0)) {
fname2fnum(&wp->w_jumplist[i]);
}
}
int to = 0;
for (int from = 0; from < wp->w_jumplistlen; from++) {
if (wp->w_jumplistidx == from) {
wp->w_jumplistidx = to;
}
for (i = from + 1; i < wp->w_jumplistlen; i++) {
if (wp->w_jumplist[i].fmark.fnum
== wp->w_jumplist[from].fmark.fnum
&& wp->w_jumplist[from].fmark.fnum != 0
&& wp->w_jumplist[i].fmark.mark.lnum
== wp->w_jumplist[from].fmark.mark.lnum) {
break;
}
}
if (i >= wp->w_jumplistlen) { // no duplicate
if (to != from) {
// Not using wp->w_jumplist[to++] = wp->w_jumplist[from] because
// this way valgrind complains about overlapping source and destination
// in memcpy() call. (clang-3.6.0, debug build with -DEXITFREE).
wp->w_jumplist[to] = wp->w_jumplist[from];
}
to++;
} else {
xfree(wp->w_jumplist[from].fname);
}
}
if (wp->w_jumplistidx == wp->w_jumplistlen) {
wp->w_jumplistidx = to;
}
wp->w_jumplistlen = to;
// When pointer is below last jump, remove the jump if it matches the current
// line. This avoids useless/phantom jumps. #9805
if (checktail && wp->w_jumplistlen
&& wp->w_jumplistidx == wp->w_jumplistlen) {
const xfmark_T *fm_last = &wp->w_jumplist[wp->w_jumplistlen - 1];
if (fm_last->fmark.fnum == curbuf->b_fnum
&& fm_last->fmark.mark.lnum == wp->w_cursor.lnum) {
xfree(fm_last->fname);
wp->w_jumplistlen--;
wp->w_jumplistidx--;
}
}
}
/*
* Copy the jumplist from window "from" to window "to".
*/
void copy_jumplist(win_T *from, win_T *to)
{
int i;
for (i = 0; i < from->w_jumplistlen; ++i) {
to->w_jumplist[i] = from->w_jumplist[i];
if (from->w_jumplist[i].fname != NULL)
to->w_jumplist[i].fname = vim_strsave(from->w_jumplist[i].fname);
}
to->w_jumplistlen = from->w_jumplistlen;
to->w_jumplistidx = from->w_jumplistidx;
}
/// Iterate over jumplist items
///
/// @warning No jumplist-editing functions must be run while iteration is in
/// progress.
///
/// @param[in] iter Iterator. Pass NULL to start iteration.
/// @param[in] win Window for which jump list is processed.
/// @param[out] fm Item definition.
///
/// @return Pointer that needs to be passed to next `mark_jumplist_iter` call or
/// NULL if iteration is over.
const void *mark_jumplist_iter(const void *const iter, const win_T *const win,
xfmark_T *const fm)
FUNC_ATTR_NONNULL_ARG(2, 3) FUNC_ATTR_WARN_UNUSED_RESULT
{
if (iter == NULL && win->w_jumplistlen == 0) {
*fm = (xfmark_T) {{{0, 0, 0}, 0, 0, NULL}, NULL};
return NULL;
}
const xfmark_T *const iter_mark =
(iter == NULL
? &(win->w_jumplist[0])
: (const xfmark_T *const) iter);
*fm = *iter_mark;
if (iter_mark == &(win->w_jumplist[win->w_jumplistlen - 1])) {
return NULL;
} else {
return iter_mark + 1;
}
}
/// Iterate over global marks
///
/// @warning No mark-editing functions must be run while iteration is in
/// progress.
///
/// @param[in] iter Iterator. Pass NULL to start iteration.
/// @param[out] name Mark name.
/// @param[out] fm Mark definition.
///
/// @return Pointer that needs to be passed to next `mark_global_iter` call or
/// NULL if iteration is over.
const void *mark_global_iter(const void *const iter, char *const name,
xfmark_T *const fm)
FUNC_ATTR_NONNULL_ARG(2, 3) FUNC_ATTR_WARN_UNUSED_RESULT
{
*name = NUL;
const xfmark_T *iter_mark = (iter == NULL
? &(namedfm[0])
: (const xfmark_T *const) iter);
while ((size_t) (iter_mark - &(namedfm[0])) < ARRAY_SIZE(namedfm)
&& !iter_mark->fmark.mark.lnum) {
iter_mark++;
}
if ((size_t) (iter_mark - &(namedfm[0])) == ARRAY_SIZE(namedfm)
|| !iter_mark->fmark.mark.lnum) {
return NULL;
}
size_t iter_off = (size_t) (iter_mark - &(namedfm[0]));
*name = (char) (iter_off < NMARKS
? 'A' + (char) iter_off
: '0' + (char) (iter_off - NMARKS));
*fm = *iter_mark;
while ((size_t) (++iter_mark - &(namedfm[0])) < ARRAY_SIZE(namedfm)) {
if (iter_mark->fmark.mark.lnum) {
return (const void *) iter_mark;
}
}
return NULL;
}
/// Get next mark and its name
///
/// @param[in] buf Buffer for which next mark is taken.
/// @param[in,out] mark_name Pointer to the current mark name. Next mark name
/// will be saved at this address as well.
///
/// Current mark name must either be NUL, '"', '^',
/// '.' or 'a' .. 'z'. If it is neither of these
/// behaviour is undefined.
///
/// @return Pointer to the next mark or NULL.
static inline const fmark_T *next_buffer_mark(const buf_T *const buf,
char *const mark_name)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
{
switch (*mark_name) {
case NUL: {
*mark_name = '"';
return &(buf->b_last_cursor);
}
case '"': {
*mark_name = '^';
return &(buf->b_last_insert);
}
case '^': {
*mark_name = '.';
return &(buf->b_last_change);
}
case '.': {
*mark_name = 'a';
return &(buf->b_namedm[0]);
}
case 'z': {
return NULL;
}
default: {
(*mark_name)++;
return &(buf->b_namedm[*mark_name - 'a']);
}
}
}
/// Iterate over buffer marks
///
/// @warning No mark-editing functions must be run while iteration is in
/// progress.
///
/// @param[in] iter Iterator. Pass NULL to start iteration.
/// @param[in] buf Buffer.
/// @param[out] name Mark name.
/// @param[out] fm Mark definition.
///
/// @return Pointer that needs to be passed to next `mark_buffer_iter` call or
/// NULL if iteration is over.
const void *mark_buffer_iter(const void *const iter, const buf_T *const buf,
char *const name, fmark_T *const fm)
FUNC_ATTR_NONNULL_ARG(2, 3, 4) FUNC_ATTR_WARN_UNUSED_RESULT
{
*name = NUL;
char mark_name = (char) (iter == NULL
? NUL
: (iter == &(buf->b_last_cursor)
? '"'
: (iter == &(buf->b_last_insert)
? '^'
: (iter == &(buf->b_last_change)
? '.'
: 'a' + (char) ((const fmark_T *)iter
- &(buf->b_namedm[0]))))));
const fmark_T *iter_mark = next_buffer_mark(buf, &mark_name);
while (iter_mark != NULL && iter_mark->mark.lnum == 0) {
iter_mark = next_buffer_mark(buf, &mark_name);
}
if (iter_mark == NULL) {
return NULL;
}
size_t iter_off = (size_t) (iter_mark - &(buf->b_namedm[0]));
if (mark_name) {
*name = mark_name;
} else {
*name = (char) ('a' + (char) iter_off);
}
*fm = *iter_mark;
return (const void *) iter_mark;
}
/// Set global mark
///
/// @param[in] name Mark name.
/// @param[in] fm Mark to be set.
/// @param[in] update If true then only set global mark if it was created
/// later then existing one.
///
/// @return true on success, false on failure.
bool mark_set_global(const char name, const xfmark_T fm, const bool update)
{
const int idx = mark_global_index(name);
if (idx == -1) {
return false;
}
xfmark_T *const fm_tgt = &(namedfm[idx]);
if (update && fm.fmark.timestamp <= fm_tgt->fmark.timestamp) {
return false;
}
if (fm_tgt->fmark.mark.lnum != 0) {
free_xfmark(*fm_tgt);
}
*fm_tgt = fm;
return true;
}
/// Set local mark
///
/// @param[in] name Mark name.
/// @param[in] buf Pointer to the buffer to set mark in.
/// @param[in] fm Mark to be set.
/// @param[in] update If true then only set global mark if it was created
/// later then existing one.
///
/// @return true on success, false on failure.
bool mark_set_local(const char name, buf_T *const buf,
const fmark_T fm, const bool update)
FUNC_ATTR_NONNULL_ALL
{
fmark_T *fm_tgt = NULL;
if (ASCII_ISLOWER(name)) {
fm_tgt = &(buf->b_namedm[name - 'a']);
} else if (name == '"') {
fm_tgt = &(buf->b_last_cursor);
} else if (name == '^') {
fm_tgt = &(buf->b_last_insert);
} else if (name == '.') {
fm_tgt = &(buf->b_last_change);
} else {
return false;
}
if (update && fm.timestamp <= fm_tgt->timestamp) {
return false;
}
if (fm_tgt->mark.lnum != 0) {
free_fmark(*fm_tgt);
}
*fm_tgt = fm;
return true;
}
/*
* Free items in the jumplist of window "wp".
*/
void free_jumplist(win_T *wp)
{
int i;
for (i = 0; i < wp->w_jumplistlen; ++i) {
free_xfmark(wp->w_jumplist[i]);
}
wp->w_jumplistlen = 0;
}
void set_last_cursor(win_T *win)
{
if (win->w_buffer != NULL) {
RESET_FMARK(&win->w_buffer->b_last_cursor, win->w_cursor, 0);
}
}
#if defined(EXITFREE)
void free_all_marks(void)
{
int i;
for (i = 0; i < NGLOBALMARKS; i++) {
if (namedfm[i].fmark.mark.lnum != 0) {
free_xfmark(namedfm[i]);
}
}
memset(&namedfm[0], 0, sizeof(namedfm));
}
#endif
/// Adjust position to point to the first byte of a multi-byte character
///
/// If it points to a tail byte it is move backwards to the head byte.
///
/// @param[in] buf Buffer to adjust position in.
/// @param[out] lp Position to adjust.
void mark_mb_adjustpos(buf_T *buf, pos_T *lp)
FUNC_ATTR_NONNULL_ALL
{
if (lp->col > 0 || lp->coladd > 1) {
const char_u *const p = ml_get_buf(buf, lp->lnum, false);
if (*p == NUL || (int)STRLEN(p) < lp->col) {
lp->col = 0;
} else {
lp->col -= utf_head_off(p, p + lp->col);
}
// Reset "coladd" when the cursor would be on the right half of a
// double-wide character.
if (lp->coladd == 1
&& p[lp->col] != TAB
&& vim_isprintc(utf_ptr2char(p + lp->col))
&& ptr2cells(p + lp->col) > 1) {
lp->coladd = 0;
}
}
}
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