void
match(void) {
static char **tokv = NULL;
static int tokn = 0;
char buf[sizeof text], *s;
int i, tokc = 0;
size_t len;
Item *item, *lprefix, *lsubstr, *prefixend, *substrend;
strcpy(buf, text);
/* separate input text into tokens to be matched individually */
for(s = strtok(buf, " "); s; tokv[tokc-1] = s, s = strtok(NULL, " "))
if(++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
die("cannot realloc %u bytes\n", tokn * sizeof *tokv);
if (tokc && unitary) {
strcpy(buf, text);
tokc = 1;
tokv[0] = buf;
}
len = tokc ? strlen(tokv[0]) : 0;
matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
for(item = items; item && item->text; item++) {
for(i = 0; i < tokc; i++)
if(!fstrstr(item->text, tokv[i]))
break;
if(i != tokc) /* not all tokens match */
continue;
/* exact matches go first, then prefixes, then substrings */
if(!tokc || !fstrncmp(tokv[0], item->text, len+1)) {
if (tokc || !item->hidden)
appenditem(item, &matches, &matchend);
}
else if(!fstrncmp(tokv[0], item->text, len))
appenditem(item, &lprefix, &prefixend);
else
appenditem(item, &lsubstr, &substrend);
}
if(lprefix) {
if(matches) {
matchend->right = lprefix;
lprefix->left = matchend;
}
else
matches = lprefix;
matchend = prefixend;
}
if(lsubstr) {
if(matches) {
matchend->right = lsubstr;
lsubstr->left = matchend;
}
else
matches = lsubstr;
matchend = substrend;
}
curr = sel = matches;
calcoffsets();
}
void
match(void) {
size_t len;
Item *item, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
len = strlen(text);
matches = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
for(item = items; item; item = item->next)
if(!fstrncmp(text, item->text, len + 1)) {
appenditem(item, &lexact, &exactend);
}
else if(!fstrncmp(text, item->text, len)) {
appenditem(item, &lprefix, &prefixend);
}
else if(fstrstr(item->text, text)) {
appenditem(item, &lsubstr, &substrend);
}
if(lexact) {
matches = lexact;
itemend = exactend;
}
if(lprefix) {
if(itemend) {
itemend->right = lprefix;
lprefix->left = itemend;
}
else
matches = lprefix;
itemend = prefixend;
}
if(lsubstr) {
if(itemend) {
itemend->right = lsubstr;
lsubstr->left = itemend;
}
else
matches = lsubstr;
}
curr = prev = next = sel = matches;
calcoffsets();
if(returnearly && !curr->right) {
handle_return(curr->text);
}
}
void
readitems(void) {
char buf[sizeof text], *p, *maxstr = NULL, *histline, *histcmd;
size_t i = 0, j = 0, k = 0, max = 0, size = 0;
FILE *f;
Bool listed;
Item *histitem;
histitems = histend = NULL;
if(histfile && (f = fopen(histfile, "r"))) {
for(; fgets(buf, sizeof buf, f); i++) {
histitem = malloc(sizeof *histitem);
histitem->text = strdup(buf);
appenditem(histitem, &histitems, &histend);
if(i+1 >= size / sizeof *items)
if(!(items = realloc(items, (size += BUFSIZ))))
eprintf("cannot realloc %u bytes:", size);
if((p = strchr(buf, '\n')))
*p = '\0';
histline = strdup(buf);
histcmd = strsep(&histline, "\t");
if(!(items[i].text = strdup(histcmd)))
eprintf("cannot strdup %u bytes:", strlen(histcmd)+1);
if(strlen(items[i].text) > max)
max = strlen(maxstr = items[i].text);
}
fclose(f);
}
/* read each line from stdin and add it to the item list */
for(j = i; fgets(buf, sizeof buf, stdin); j++) {
if((p = strchr(buf, '\n')))
*p = '\0';
listed = False;
for(k = 0; k < i; k++) {
if(strcmp(buf, items[k].text) == 0) {
listed = True;
j--;
break;
}
}
if(!listed) {
if(j+1 >= size / sizeof *items)
if(!(items = realloc(items, (size += BUFSIZ))))
eprintf("cannot realloc %u bytes:", size);
if(!(items[j].text = strdup(buf)))
eprintf("cannot strdup %u bytes:", strlen(buf)+1);
if(strlen(items[j].text) > max)
max = strlen(maxstr = items[j].text);
}
}
if(items)
items[j].text = NULL;
inputw = maxstr ? textw(dc, maxstr) : 0;
lines = MIN(lines, j);
}
void
match(int sub) {
size_t len = strlen(text);
Item *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
Item *item, *lnext;
lexact = lprefix = lsubstr = exactend = prefixend = substrend = NULL;
for(item = sub ? matches : items; item && item->text; item = lnext) {
lnext = sub ? item->right : item + 1;
if(!fstrncmp(text, item->text, len + 1))
appenditem(item, &lexact, &exactend);
else if(!fstrncmp(text, item->text, len))
appenditem(item, &lprefix, &prefixend);
else if(fstrstr(item->text, text))
appenditem(item, &lsubstr, &substrend);
}
matches = lexact;
matchend = exactend;
if(lprefix) {
if(matchend) {
matchend->right = lprefix;
lprefix->left = matchend;
}
else
matches = lprefix;
matchend = prefixend;
}
if(lsubstr) {
if(matchend) {
matchend->right = lsubstr;
lsubstr->left = matchend;
}
else
matches = lsubstr;
matchend = substrend;
}
curr = sel = matches;
calcoffsets();
}
void
match(void) {
Item *item, *lprefix, *lsubstr, *prefixend, *substrend;
lprefix = lsubstr = matchend = prefixend = substrend = NULL;
clear(results, &matches);
results = locate(text, &matches);
for(item = matches; item && item->text; item++) {
appenditem(item, &matches, &matchend);
}
curr = sel = matches;
calcoffsets();
}
void
match_fuzzy(void) {
int i;
size_t len;
Item *item;
char *pos;
len = strlen(text);
matches = matchend = NULL;
for(item = items; item && item->text; item++) {
i = 0;
for(pos = fstrchr(item->text, text[i]); pos && text[i]; i++, pos = fstrchr(pos+1, text[i]));
if(i == len) appenditem(item, &matches, &matchend);
}
curr = sel = matches;
calcoffsets();
}
static void
grabkeyboard(void)
{
struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 };
int i;
/* try to grab keyboard, we may have to wait for another process to ungrab */
for (i = 0; i < 1000; i++) {
if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True,
GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
return;
nanosleep(&ts, NULL);
}
die("cannot grab keyboard\n");
}
static void
match(void)
{
static char **tokv = NULL;
static int tokn = 0;
char buf[sizeof text], *s;
int i, tokc = 0;
size_t len, textsize;
struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
strcpy(buf, text);
/* separate input text into tokens to be matched individually */
for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
die("cannot realloc %u bytes\n", tokn * sizeof *tokv);
len = tokc ? strlen(tokv[0]) : 0;
matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
textsize = strlen(text);
for (item = items; item && item->text; item++) {
for (i = 0; i < tokc; i++)
if (!fstrstr(item->text, tokv[i]))
break;
if (i != tokc) /* not all tokens match */
continue;
/* exact matches go first, then prefixes, then substrings */
if (!tokc || !fstrncmp(text, item->text, textsize))
appenditem(item, &matches, &matchend);
else if (!fstrncmp(tokv[0], item->text, len))
appenditem(item, &lprefix, &prefixend);
else
appenditem(item, &lsubstr, &substrend);
}
if (lprefix) {
if (matches) {
matchend->right = lprefix;
lprefix->left = matchend;
} else
matches = lprefix;
matchend = prefixend;
}
if (lsubstr) {
if (matches) {
matchend->right = lsubstr;
lsubstr->left = matchend;
} else
matches = lsubstr;
matchend = substrend;
}
curr = sel = matches;
calcoffsets();
}
static void
insert(const char *str, ssize_t n)
{
if (strlen(text) + n > sizeof text - 1)
return;
/* move existing text out of the way, insert new text, and update cursor */
memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
if (n > 0)
memcpy(&text[cursor], str, n);
cursor += n;
match();
}
static size_t
nextrune(int inc)
{
ssize_t n;
/* return location of next utf8 rune in the given direction (+1 or -1) */
for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
;
return n;
}
static void
grabkeyboard(void)
{
struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 };
int i;
/* try to grab keyboard, we may have to wait for another process to ungrab */
for (i = 0; i < 1000; i++) {
if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True,
GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
return;
nanosleep(&ts, NULL);
}
die("cannot grab keyboard\n");
}
static void
match(void)
{
static char **tokv = NULL;
static int tokn = 0;
char buf[sizeof text], *s;
int i, tokc = 0;
size_t len, textsize;
struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
strcpy(buf, text);
/* separate input text into tokens to be matched individually */
for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
die("cannot realloc %u bytes\n", tokn * sizeof *tokv);
len = tokc ? strlen(tokv[0]) : 0;
matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
textsize = strlen(text);
for (item = items; item && item->text; item++) {
for (i = 0; i < tokc; i++)
if (!fstrstr(item->text, tokv[i]))
break;
if (i != tokc) /* not all tokens match */
continue;
/* exact matches go first, then prefixes, then substrings */
if (!tokc || !fstrncmp(text, item->text, textsize))
appenditem(item, &matches, &matchend);
else if (!fstrncmp(tokv[0], item->text, len))
appenditem(item, &lprefix, &prefixend);
else
appenditem(item, &lsubstr, &substrend);
}
if (lprefix) {
if (matches) {
matchend->right = lprefix;
lprefix->left = matchend;
} else
matches = lprefix;
matchend = prefixend;
}
if (lsubstr) {
if (matches) {
matchend->right = lsubstr;
lsubstr->left = matchend;
} else
matches = lsubstr;
matchend = substrend;
}
curr = sel = matches;
calcoffsets();
}
int
compare_distance(const void *a, const void *b)
{
struct item *da = *(struct item **) a;
struct item *db = *(struct item **) b;
if (!db)
return 1;
if (!da)
return -1;
return da->distance - db->distance;
}
void
fuzzymatch(void)
{
/* bang - we have so much memory */
struct item *it;
struct item **fuzzymatches = NULL;
char c;
int number_of_matches = 0, i, pidx, sidx, eidx;
int text_len = strlen(text), itext_len;
matches = matchend = NULL;
if (!isFuzzyMatch) {
match();
return;
}
/* walk through all items */
for (it = items; it && it->text; it++) {
if (text_len) {
itext_len = strlen(it->text);
pidx = 0;
sidx = eidx = -1;
/* walk through item text */
for (i = 0; i < itext_len && (c = it->text[i]); i++) {
/* fuzzy match pattern */
if (text[pidx] == c) {
if(sidx == -1)
sidx = i;
pidx++;
if (pidx == text_len) {
eidx = i;
break;
}
}
}
/* build list of matches */
if (eidx != -1) {
/* compute distance */
/* factor in 30% of sidx and distance between eidx and total
* text length .. let's see how it works */
it->distance = eidx - sidx + (itext_len - eidx + sidx) / 3;
appenditem(it, &matches, &matchend);
number_of_matches++;
}
} else {
appenditem(it, &matches, &matchend);
}
}
if (number_of_matches) {
/* initialize array with matches */
if (!(fuzzymatches = realloc(fuzzymatches, number_of_matches * sizeof(struct item*))))
die("cannot realloc %u bytes:", number_of_matches * sizeof(struct item*));
for (i = 0, it = matches; it && i < number_of_matches; i++, it = it->right) {
fuzzymatches[i] = it;
}
/* sort matches according to distance */
qsort(fuzzymatches, number_of_matches, sizeof(struct item*), compare_distance);
/* rebuild list of matches */
matches = matchend = NULL;
for (i = 0, it = fuzzymatches[i]; i < number_of_matches && it && \
it->text; i++, it = fuzzymatches[i]) {
appenditem(it, &matches, &matchend);
}
free(fuzzymatches);
}
curr = sel = matches;
calcoffsets();
}
static void
insert(const char *str, ssize_t n)
{
if (strlen(text) + n > sizeof text - 1)
return;
/* move existing text out of the way, insert new text, and update cursor */
memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
if (n > 0)
memcpy(&text[cursor], str, n);
cursor += n;
fuzzymatch();
}
static size_t
nextrune(int inc)
{
ssize_t n;
/* return location of next utf8 rune in the given direction (+1 or -1) */
for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
;
return n;
}
static void
grabfocus(void)
{
struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
Window focuswin;
int i, revertwin;
for (i = 0; i < 100; ++i) {
XGetInputFocus(dpy, &focuswin, &revertwin);
if (focuswin == win)
return;
XSetInputFocus(dpy, win, RevertToParent, CurrentTime);
nanosleep(&ts, NULL);
}
die("cannot grab focus");
}
static void
grabkeyboard(void)
{
struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 };
int i;
if (embed)
return;
/* try to grab keyboard, we may have to wait for another process to ungrab */
for (i = 0; i < 1000; i++) {
if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync,
GrabModeAsync, CurrentTime) == GrabSuccess)
return;
nanosleep(&ts, NULL);
}
die("cannot grab keyboard");
}
static void
match(void)
{
static char **tokv = NULL;
static int tokn = 0;
char buf[sizeof text], *s;
int i, tokc = 0;
size_t len, textsize;
struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
strcpy(buf, text);
/* separate input text into tokens to be matched individually */
for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
die("cannot realloc %u bytes:", tokn * sizeof *tokv);
len = tokc ? strlen(tokv[0]) : 0;
matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
textsize = strlen(text);
for (item = items; item && item->text; item++) {
for (i = 0; i < tokc; i++)
if (!fstrstr(item->text, tokv[i]))
break;
if (i != tokc) /* not all tokens match */
continue;
/* exact matches go first, then prefixes, then substrings */
if (!tokc || !fstrncmp(text, item->text, textsize))
appenditem(item, &matches, &matchend);
else if (!fstrncmp(tokv[0], item->text, len))
appenditem(item, &lprefix, &prefixend);
else
appenditem(item, &lsubstr, &substrend);
}
if (lprefix) {
if (matches) {
matchend->right = lprefix;
lprefix->left = matchend;
} else
matches = lprefix;
matchend = prefixend;
}
if (lsubstr) {
if (matches) {
matchend->right = lsubstr;
lsubstr->left = matchend;
} else
matches = lsubstr;
matchend = substrend;
}
curr = sel = matches;
calcoffsets();
}
static void
insert(const char *str, ssize_t n)
{
if (strlen(text) + n > sizeof text - 1)
return;
/* move existing text out of the way, insert new text, and update cursor */
memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
if (n > 0)
memcpy(&text[cursor], str, n);
cursor += n;
match();
}
static size_t
nextrune(int inc)
{
ssize_t n;
/* return location of next utf8 rune in the given direction (+1 or -1) */
for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
;
return n;
}
static void
loadhistory(void)
{
FILE *fp = NULL;
size_t sz;
if (!histfile)
return;
if (!(fp = fopen(histfile, "r")))
return;
fseek(fp, 0, SEEK_END);
sz = ftell(fp);
fseek(fp, 0, SEEK_SET);
if (sz) {
histsz = sz + 1 + BUFSIZ;
if (!(histbuf = malloc(histsz))) {
fprintf(stderr, "warning: cannot malloc %lu "\
"bytes", histsz);
} else {
histptr = histbuf + fread(histbuf, 1, sz, fp);
if (histptr <= histbuf) { /* fread error */
free(histbuf);
histbuf = NULL;
return;
}
if (histptr[-1] != '\n')
*histptr++ = '\n';
histptr[BUFSIZ - 1] = '\0';
*histptr = '\0';
histsz = histptr - histbuf + BUFSIZ;
}
}
fclose(fp);
}
