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+ Changed histreduceblanks() to preserve spaces at the start of the

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line when HISTIGNORESPACE is set.
+ Flag a history entry with HIST_TMPSTORE when should_ignore_line()
  returns true (instead of dropping it from the history immediately).
+ Get rid of old HIST_TMPSTORE entries when a new command is entered.
+ The hist-file-reading code now handles destroying a foreign
  duplicate (when marked as duplicate by addhistnode()).
This commit is contained in:
Wayne Davison 2001-05-15 16:32:25 +00:00
parent eb71464b09
commit 9f9ced8c62
1 changed files with 30 additions and 14 deletions
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44
Src/hist.c
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@ -794,16 +794,19 @@ hbegin(int dohist)
void
histreduceblanks(void)
{
int i, len, pos, needblank;
int i, len, pos, needblank, spacecount = 0;
for (i = 0, len = 0; i < chwordpos; i += 2) {
if (isset(HISTIGNORESPACE))
while (chline[spacecount] == ' ') spacecount++;
for (i = 0, len = spacecount; i < chwordpos; i += 2) {
len += chwords[i+1] - chwords[i]
+ (i > 0 && chwords[i] > chwords[i-1]);
}
if (chline[len] == '\0')
return;
for (i = 0, pos = 0; i < chwordpos; i += 2) {
for (i = 0, pos = spacecount; i < chwordpos; i += 2) {
len = chwords[i+1] - chwords[i];
needblank = (i < chwordpos-2 && chwords[i+2] > chwords[i+1]);
if (pos != chwords[i]) {
@ -1044,8 +1047,10 @@ hend(Eprog prog)
} else
save = 0;
}
if (chwordpos <= 2 || should_ignore_line(prog))
if (chwordpos <= 2)
save = 0;
else if (should_ignore_line(prog))
save = -1;
}
if (flag & (HISTFLAG_DONE | HISTFLAG_RECALL)) {
char *ptr;
@ -1058,14 +1063,23 @@ hend(Eprog prog)
}
if (flag & HISTFLAG_RECALL) {
zpushnode(bufstack, ptr);
save = 0;
} else
zsfree(ptr);
}
if (save || *chline == ' ') {
Histent he;
for (he = hist_ring; he && he->flags & HIST_FOREIGN;
he = up_histent(he)) ;
if (he && he->flags & HIST_TMPSTORE) {
if (he == hist_ring)
curline.histnum = curhist--;
freehistnode((HashNode)he);
}
}
if (save) {
Histent he;
int keepflags;
int newflags;
#ifdef DEBUG
/* debugging only */
@ -1081,6 +1095,7 @@ hend(Eprog prog)
if (isset(HISTREDUCEBLANKS))
histreduceblanks();
}
newflags = save > 0? 0 : HIST_OLD | HIST_TMPSTORE;
if ((isset(HISTIGNOREDUPS) || isset(HISTIGNOREALLDUPS)) && hist_ring
&& histstrcmp(chline, hist_ring->text) == 0) {
/* This history entry compares the same as the previous.
@ -1089,18 +1104,16 @@ hend(Eprog prog)
* timestamp right. Perhaps, preserve the HIST_OLD flag.
*/
he = hist_ring;
keepflags = he->flags & HIST_OLD; /* Avoid re-saving */
newflags |= he->flags & HIST_OLD; /* Avoid re-saving */
freehistdata(he, 0);
curline.histnum = curhist;
} else {
keepflags = 0;
} else
he = prepnexthistent();
}
he->text = ztrdup(chline);
he->stim = time(NULL);
he->ftim = 0L;
he->flags = keepflags;
he->flags = newflags;
if ((he->nwords = chwordpos/2)) {
he->words = (short *)zalloc(chwordpos * sizeof(short));
@ -1893,8 +1906,10 @@ readhistfile(char *fn, int err, int readflags)
} else
he->words = (short *)NULL;
addhistnode(histtab, he->text, he);
if (hist_ring != he)
curhist--; /* We discarded a foreign duplicate */
if (he->flags & HIST_DUP) {
freehistnode((HashNode)he);
curhist--;
}
}
if (start && readflags & HFILE_USE_OPTIONS) {
zsfree(lasthist.text);
@ -1962,7 +1977,8 @@ savehistfile(char *fn, int err, int writeflags)
if (out) {
for (; he && he->histnum <= xcurhist; he = down_histent(he)) {
if ((writeflags & HFILE_SKIPDUPS && he->flags & HIST_DUP)
|| (writeflags & HFILE_SKIPFOREIGN && he->flags & HIST_FOREIGN))
|| (writeflags & HFILE_SKIPFOREIGN && he->flags & HIST_FOREIGN)
|| he->flags & HIST_TMPSTORE)
continue;
if (writeflags & HFILE_SKIPOLD) {
if (he->flags & HIST_OLD)