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Another completion patch
- X-seq: zsh-workers 151
- From: Zefram <A.Main@xxxxxxxxxxxxxxxxx>
- To: zsh-workers@xxxxxxxxxxxxxxx (Z Shell workers mailing list)
- Subject: Another completion patch
- Date: Wed, 5 Jul 1995 14:04:26 +0100 (BST)
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The patch below makes ZLE keep a completion list fully visible on the
screen if it is still valid (i.e. applicable to the current situation)
and fits on the screen (only if ALWAYS_LAST_PROMPT is set, of course).
This is most obvious when doing menu completion that wraps round onto a
new line; the list will be redisplayed from a lower line.
If the redisplay or clear-screen function is called, the list (if still
valid) will be redisplayed immediately below the edit buffer, possibly
moving it up a line. If that happens, then further menu completion
could cause it to move down again. (clear-screen gets the ZLE_MENUCMP
flag in one of the hunks below.)
This patch also fixes two list-related bugs: doing a completion into a
list that added more than one line to the buffer would not properly
clear lines after the first added one, and listmatches() didn't move
the cursor up far enough when listing anything longer than a line
because it didn't take the wraparound into account.
This patch relies heavily on my recent patch to avoid the completion
list being worked out unnecessarily.
-zefram
*** Src/zle.h.old Wed Jul 5 07:18:31 1995
--- Src/zle.h Wed Jul 5 13:18:44 1995
***************
*** 70,75 ****
--- 70,80 ----
/* number of lines displayed */
ZLEXTERN int nlnct;
+ /* most lines of the buffer we've shown at once with the current list showing.
+ == 0 if there is no list. == -1 if a new list has just been put on the screen.
+ == -2 if refresh() needs to put up a new list. */
+ ZLEXTERN int showinglist;
+
/* flags associated with last command */
ZLEXTERN int lastcmd;
*** Src/zle_bindings.c.old Wed Jul 5 13:10:26 1995
--- Src/zle_bindings.c Wed Jul 5 13:10:45 1995
***************
*** 50,56 ****
{"beginning-of-line", beginningofline, ZLE_MOVEMENT},
{"beginning-of-line-hist", beginningoflinehist, ZLE_MOVEMENT},
{"capitalize-word", capitalizeword, 0},
! {"clear-screen", clearscreen, 0},
{"complete-word", completeword, ZLE_MENUCMP},
{"copy-prev-word", copyprevword, 0},
{"copy-region-as-kill", copyregionaskill, ZLE_KILL},
--- 50,56 ----
{"beginning-of-line", beginningofline, ZLE_MOVEMENT},
{"beginning-of-line-hist", beginningoflinehist, ZLE_MOVEMENT},
{"capitalize-word", capitalizeword, 0},
! {"clear-screen", clearscreen, ZLE_MENUCMP},
{"complete-word", completeword, ZLE_MENUCMP},
{"copy-prev-word", copyprevword, 0},
{"copy-region-as-kill", copyregionaskill, ZLE_KILL},
*** Src/zle_refresh.c.old Wed Jul 5 07:16:50 1995
--- Src/zle_refresh.c Wed Jul 5 13:16:40 1995
***************
*** 105,110 ****
--- 105,112 ----
vcs = pptw;
olnct = nlnct = 0;
+ if(showinglist > 0)
+ showinglist = -2;
}
/**/
***************
*** 158,163 ****
--- 160,166 ----
void
refresh(void)
{
+ static int inlist; /* avoiding recursion */
int ln = 0, /* current line we're working on */
nvcs = 0, nvln = -1, /* video cursor column and line */
rpw, /* right-prompt width */
***************
*** 168,173 ****
--- 171,181 ----
*scs = line + cs; /* pointer to cursor position in real buffer */
char **qbuf; /* tmp */
+ /* if this is called from listmatches(), and that was called from the end
+ of refresh(), then we don't need to do anything */
+ if(inlist)
+ return;
+
#ifdef HAVE_SELECT
cost = 0; /* reset */
#endif
***************
*** 299,305 ****
for (ln = 0; !clearf && (ln < nlnct); ln++) {
/* if we have more lines than last time, clear the newly-used lines */
! if (ln == olnct)
cleareol = 1;
/* if old line and new line are different,
--- 307,313 ----
for (ln = 0; !clearf && (ln < nlnct); ln++) {
/* if we have more lines than last time, clear the newly-used lines */
! if (ln >= olnct)
cleareol = 1;
/* if old line and new line are different,
***************
*** 399,404 ****
--- 407,423 ----
if (nlnct > vmaxln)
vmaxln = nlnct;
fflush(shout); /* make sure everything is written out */
+
+ /* if we have a new list showing, note it; if part of the list has been
+ overwritten, redisplay it. */
+ if(showinglist == -2 || (showinglist > 0 && showinglist < nlnct)) {
+ inlist = 1;
+ listmatches();
+ inlist = 0;
+ refresh();
+ }
+ if(showinglist == -1)
+ showinglist = nlnct;
}
#define tcinscost(X) (tccan(TCMULTINS) ? tclen[TCMULTINS] : (X)*tclen[TCINS])
*** Src/zle_tricky.c.old Wed Jul 5 07:12:25 1995
--- Src/zle_tricky.c Wed Jul 5 13:45:43 1995
***************
*** 3072,3081 ****
void
invalidatelist(void)
{
- if(menucmp)
- menucmp = 0;
if(validlist) {
- validlist = 0;
freearray(amatches);
zsfree(rpre);
zsfree(rsuf);
--- 3072,3078 ----
***************
*** 3091,3096 ****
--- 3088,3094 ----
if (ccmain != &cc_dummy)
freecompctl(ccmain);
}
+ menucmp = showinglist = validlist = 0;
}
/* Get the words from a variable or a compctl -k list. */
***************
*** 3549,3554 ****
--- 3547,3553 ----
/* Set the cursor below the prompt. */
trashzle();
ct = nmatches;
+ showinglist = 0;
clearflag = (isset(USEZLE) && termok &&
(isset(ALWAYSLASTPROMPT) && mult == 1)) ||
***************
*** 3567,3580 ****
longest++;
fct = (columns - 1) / (longest + 2);
! if (fct == 0)
fct = 1;
! else
fw = (columns - 1) / fct;
! colsz = (ct + fct - 1) / fct;
- up = colsz + nlnct - clearflag;
-
/* Print the explanation string, if any. */
if (expl)
up += printfmt(expl, ct, 0);
--- 3566,3585 ----
longest++;
fct = (columns - 1) / (longest + 2);
! if (fct == 0) {
fct = 1;
! colsz = ct;
! up = colsz + nlnct - clearflag;
! for (ap = arr; *ap; ap++)
! up += (strlen(*ap + off) - boff + of +
! (ispattern ? 0 :
! (!(haswhat & HAS_MISC) ? fpl + fsl : lpl + lsl))) / columns;
! } else {
fw = (columns - 1) / fct;
! colsz = (ct + fct - 1) / fct;
! up = colsz + nlnct - clearflag;
! }
/* Print the explanation string, if any. */
if (expl)
up += printfmt(expl, ct, 0);
***************
*** 3671,3679 ****
if (clearflag)
/* Move the cursor up to the prompt, if always_last_prompt is set
and all that... */
! if (up < lines)
tcmultout(TCUP, TCMULTUP, up);
! else
clearflag = 0, putc('\n', shout);
shownexpl = 1;
--- 3676,3685 ----
if (clearflag)
/* Move the cursor up to the prompt, if always_last_prompt is set
and all that... */
! if (up < lines) {
tcmultout(TCUP, TCMULTUP, up);
! showinglist = -1;
! } else
clearflag = 0, putc('\n', shout);
shownexpl = 1;
***************
*** 3691,3704 ****
--- 3697,3713 ----
char *lp = lpre, *ls = lsuf;
int nm = nmatches;
char **am = amatches;
+ char *ex = expl;
haswhat = HAS_MISC;
ispattern = 0;
lpre = lsuf = "";
+ expl = NULL;
makearray(l);
listmatches();
+ expl = ex;
amatches = am;
nmatches = nm;
lpre = lp;
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