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'inccommand': Introduce CMDPREVIEW state.

Browse Source 
Command "live preview" is fundamentally a non-recursive concept
("preview of a preview" is not useful). Maintaining this as a
global is less awkward and closer to what we actually want to
express, vs adorning exarg_T, CommandLineState, etc.
This commit is contained in:
Justin M. Keyes 2016-11-15 00:10:39 +01:00
parent 708617ebb6
commit 3f7a2d785d
7 changed files with 37 additions and 36 deletions
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40
src/nvim/ex_cmds.c
View File

@ -2952,10 +2952,11 @@ void sub_set_replacement(SubReplacementString sub)
/// @param[in] pat Search pattern
/// @param[in] sub Replacement string
/// @param[in] cmd Command from :s_flags
/// @param[in] save Save pattern to options, history
///
/// @returns true if :substitute can be replaced with a join command
static bool sub_joining_lines(exarg_T *eap, char_u *pat,
char_u *sub, char_u *cmd)
static bool sub_joining_lines(exarg_T *eap, char_u *pat, char_u *sub,
char_u *cmd, bool save)
FUNC_ATTR_NONNULL_ARG(1, 3, 4)
{
// TODO(vim): find a generic solution to make line-joining operations more
@ -2989,7 +2990,7 @@ static bool sub_joining_lines(exarg_T *eap, char_u *pat,
ex_may_print(eap);
}
if (!eap->is_live) {
if (save) {
if (!cmdmod.keeppatterns) {
save_re_pat(RE_SUBST, pat, p_magic);
}
@ -3108,7 +3109,7 @@ static char_u *sub_parse_flags(char_u *cmd, subflags_T *subflags,
/// The usual escapes are supported as described in the regexp docs.
///
/// @return buffer used for 'inccommand' preview
static buf_T *do_sub(exarg_T *eap)
static buf_T *do_sub(exarg_T *eap, proftime_T timeout)
{
long i = 0;
regmmatch_T regmatch;
@ -3137,10 +3138,10 @@ static buf_T *do_sub(exarg_T *eap)
bool endcolumn = false; // cursor in last column when done
MatchedLineVec matched_lines = KV_INITIAL_VALUE;
pos_T old_cursor = curwin->w_cursor;
proftime_T timeout = eap->is_live ? profile_setlimit(p_rdt) : profile_zero();
int start_nsubs;
int save_ma = 0;
int save_b_changed = curbuf->b_changed;
bool preview = (State & CMDPREVIEW);
if (!global_busy) {
sub_nsubs = 0;
@ -3208,7 +3209,7 @@ static buf_T *do_sub(exarg_T *eap)
mb_ptr_adv(cmd);
}
if (!eap->skip && !eap->is_live) {
if (!eap->skip && !preview) {
sub_set_replacement((SubReplacementString) {
.sub = xstrdup((char *) sub),
.timestamp = os_time(),
@ -3228,7 +3229,7 @@ static buf_T *do_sub(exarg_T *eap)
endcolumn = (curwin->w_curswant == MAXCOL);
}
if (sub_joining_lines(eap, pat, sub, cmd)) {
if (sub_joining_lines(eap, pat, sub, cmd, !preview)) {
return NULL;
}
@ -3273,7 +3274,7 @@ static buf_T *do_sub(exarg_T *eap)
return NULL;
}
if (search_regcomp(pat, RE_SUBST, which_pat, (eap->is_live ? 0 : SEARCH_HIS),
if (search_regcomp(pat, RE_SUBST, which_pat, (preview ? 0 : SEARCH_HIS),
&regmatch) == FAIL) {
if (subflags.do_error) {
EMSG(_(e_invcmd));
@ -3403,7 +3404,7 @@ static buf_T *do_sub(exarg_T *eap)
curwin->w_cursor.lnum = lnum;
do_again = FALSE;
if (eap->is_live) {
if (preview) {
// Increment the in-line match count and store the column.
matched_line.nmatch++;
kv_push(matched_line.cols, regmatch.startpos[0].col);
@ -3456,7 +3457,7 @@ static buf_T *do_sub(exarg_T *eap)
goto skip;
}
if (subflags.do_ask && !eap->is_live) {
if (subflags.do_ask && !preview) {
int typed = 0;
/* change State to CONFIRM, so that the mouse works
@ -3627,9 +3628,9 @@ static buf_T *do_sub(exarg_T *eap)
* use "\=col("."). */
curwin->w_cursor.col = regmatch.startpos[0].col;
// 3. Substitute the string. During 'inccommand' only do this if there
// is a replace pattern.
if (!eap->is_live || has_second_delim) {
// 3. Substitute the string. During 'inccommand' preview only do this if
// there is a replace pattern.
if (!preview || has_second_delim) {
if (subflags.do_count) {
// prevent accidentally changing the buffer by a function
save_ma = curbuf->b_p_ma;
@ -3873,7 +3874,7 @@ skip:
xfree(sub_firstline); /* free the copy of the original line */
sub_firstline = NULL;
if (eap->is_live) {
if (preview) {
matched_line.lnum = lnum;
matched_line.line = vim_strsave(ml_get(lnum));
kv_push(matched_lines, matched_line);
@ -3917,7 +3918,7 @@ skip:
beginline(BL_WHITE | BL_FIX);
}
}
if (!eap->is_live && !do_sub_msg(subflags.do_count) && subflags.do_ask) {
if (!preview && !do_sub_msg(subflags.do_count) && subflags.do_ask) {
MSG("");
}
} else {
@ -3952,7 +3953,7 @@ skip:
// Show 'inccommand' preview if there are matched lines.
buf_T *preview_buf = NULL;
if (eap->is_live && !aborting()) {
if (preview && !aborting()) {
if (got_quit) { // Substitution is too slow, disable 'inccommand'.
set_string_option_direct((char_u *)"icm", -1, (char_u *)"", OPT_FREE,
SID_NONE);
@ -6122,8 +6123,9 @@ static buf_T *show_sub(exarg_T *eap, pos_T old_cusr, char_u *pat, char_u *sub,
/// from undo history.
void ex_substitute(exarg_T *eap)
{
if (*p_icm == NUL || !eap->is_live) { // 'inccommand' is disabled
(void)do_sub(eap);
bool preview = (State & CMDPREVIEW);
if (*p_icm == NUL || !preview) { // 'inccommand' is disabled
(void)do_sub(eap, profile_zero());
return;
}
@ -6145,7 +6147,7 @@ void ex_substitute(exarg_T *eap)
curwin->w_p_cul = false; // Disable 'cursorline'
curwin->w_p_cuc = false; // Disable 'cursorcolumn'
buf_T *preview_buf = do_sub(eap);
buf_T *preview_buf = do_sub(eap, profile_setlimit(p_rdt));
if (save_changedtick != curbuf->b_changedtick) {
// Undo invisibly. This also moves the cursor!

1
src/nvim/ex_cmds_defs.h
View File

@ -124,7 +124,6 @@ struct exarg {
LineGetter getline; ///< Function used to get the next line
void *cookie; ///< argument for getline()
struct condstack *cstack; ///< condition stack for ":if" etc.
bool is_live; ///< 'inccommand' live preview
};
#define FORCE_BIN 1 // ":edit ++bin file"

7
src/nvim/ex_docmd.c
View File

@ -1248,7 +1248,6 @@ static char_u * do_one_cmd(char_u **cmdlinep,
memset(&ea, 0, sizeof(ea));
ea.line1 = 1;
ea.line2 = 1;
ea.is_live = flags & DOCMD_LIVE;
ex_nesting_level++;
/* When the last file has not been edited :q has to be typed twice. */
@ -9648,12 +9647,12 @@ static void ex_terminal(exarg_T *eap)
}
}
/// Check whether commandline starts with a live command
/// Checks if `cmd` is "previewable" (i.e. supported by 'inccommand').
///
/// @param[in] cmd Commandline to check. May start with a range.
///
/// @return True if first command is a live command
bool cmd_is_live(char_u *cmd)
/// @return true if `cmd` is previewable
bool cmd_can_preview(char_u *cmd)
{
if (cmd == NULL) {
return false;

1
src/nvim/ex_docmd.h
View File

@ -10,7 +10,6 @@
#define DOCMD_KEYTYPED 0x08 // don't reset KeyTyped
#define DOCMD_EXCRESET 0x10 // reset exception environment (for debugging
#define DOCMD_KEEPLINE 0x20 // keep typed line for repeating with "."
#define DOCMD_LIVE 0x40 // show updates as-you-type ("live" command)
/* defines for eval_vars() */
#define VALID_PATH 1

22
src/nvim/ex_getln.c
View File

@ -103,7 +103,6 @@ typedef struct command_line_state {
linenr_T old_botline;
int did_incsearch;
int incsearch_postponed;
bool live; // performing 'inccommand' preview
int did_wild_list; // did wild_list() recently
int wim_index; // index in wim_flags[]
int res;
@ -400,8 +399,7 @@ static int command_line_execute(VimState *state, int key)
if ((s->c == Ctrl_C)
&& s->firstc != '@'
&& !s->break_ctrl_c
&& !global_busy
&& !cmd_is_live(ccline.cmdbuff)) {
&& !global_busy) {
got_int = false;
}
@ -1601,13 +1599,17 @@ static int command_line_changed(CommandLineState *s)
&& *p_icm != NUL // 'inccommand' is set
&& curbuf->b_p_ma // buffer is modifiable
&& cmdline_star == 0 // not typing a password
&& cmd_is_live(ccline.cmdbuff)
&& cmd_can_preview(ccline.cmdbuff)
&& !vpeekc_any()) {
s->live = true;
// process a "live" command ('inccommand')
do_cmdline(ccline.cmdbuff, NULL, NULL, DOCMD_KEEPLINE|DOCMD_LIVE);
// Show 'inccommand' preview. It works like this:
// 1. Do the command.
// 2. Command implementation detects CMDPREVIEW state, then:
// - Update the screen while the effects are in place.
// - Immediately undo the effects.
State |= CMDPREVIEW;
do_cmdline(ccline.cmdbuff, NULL, NULL, DOCMD_KEEPLINE|DOCMD_NOWAIT);
// restore the window "view"
// Restore the window "view".
curwin->w_cursor = s->old_cursor;
curwin->w_curswant = s->old_curswant;
curwin->w_leftcol = s->old_leftcol;
@ -1617,8 +1619,8 @@ static int command_line_changed(CommandLineState *s)
update_topline();
redrawcmdline();
} else if (s->live) {
s->live = false;
} else if (State & CMDPREVIEW) {
State = (State & ~CMDPREVIEW);
update_screen(SOME_VALID); // Clear 'inccommand' preview.
}

1
src/nvim/terminal.c
View File

@ -955,7 +955,6 @@ static void invalidate_terminal(Terminal *term, int start_row, int end_row)
static void refresh_terminal(Terminal *term)
{
// TODO(SplinterOfChaos): Find the condition that makes term->buf invalid.
buf_T *buf = handle_get_buffer(term->buf_handle);
bool valid = true;
if (!buf || !(valid = buf_valid(buf))) {

1
src/nvim/vim.h
View File

@ -104,6 +104,7 @@ Error: configure did not run properly.Check auto/config.log.
#define CONFIRM 0x800 /* ":confirm" prompt */
#define SELECTMODE 0x1000 /* Select mode, only for mappings */
#define TERM_FOCUS 0x2000 // Terminal focus mode
#define CMDPREVIEW 0x4000 // Showing 'inccommand' command "live" preview.
// all mode bits used for mapping
#define MAP_ALL_MODES (0x3f | SELECTMODE | TERM_FOCUS)