initial commit

1 files changed, 1097 insertions, 0 deletions

diff --git a/dmenu.c b/dmenu.c
new file mode 100644
index 0000000..19f369b
--- /dev/null
+++ b/dmenu.c
@@ -0,0 +1,1097 @@
+/* See LICENSE file for copyright and license details. */
+#include <ctype.h>
+#include <locale.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/Xresource.h>
+#include <X11/Xutil.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif
+#include <X11/Xft/Xft.h>
+
+#include "drw.h"
+#include "util.h"
+
+/* macros */
+#define INTERSECT(x, y, w, h, r)                                               \
+  (MAX(0, MIN((x) + (w), (r).x_org + (r).width) - MAX((x), (r).x_org)) *       \
+   MAX(0, MIN((y) + (h), (r).y_org + (r).height) - MAX((y), (r).y_org)))
+#define LENGTH(X) (sizeof X / sizeof X[0])
+#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
+#define NUMBERSMAXDIGITS 100
+#define NUMBERSBUFSIZE (NUMBERSMAXDIGITS * 2) + 1
+
+/* enums */
+enum {
+  SchemeNorm,
+  SchemeSel,
+  SchemeNormHighlight,
+  SchemeSelHighlight,
+  SchemeOut,
+  SchemeLast
+}; /* color schemes */
+
+struct item {
+  char *text;
+  char *text_output;
+  struct item *left, *right;
+  int out;
+  double distance;
+};
+
+static char numbers[NUMBERSBUFSIZE] = "";
+static char text[BUFSIZ] = "";
+static char *embed;
+static char separator;
+static int separator_greedy;
+static int separator_reverse;
+static int bh, mw, mh;
+static int inputw = 0, promptw;
+static int lrpad; /* sum of left and right padding */
+static size_t cursor;
+static struct item *items = NULL;
+static struct item *matches, *matchend;
+static struct item *prev, *curr, *next, *sel;
+static int mon = -1, screen;
+
+static Atom clip, utf8;
+static Display *dpy;
+static Window root, parentwin, win;
+static XIC xic;
+
+static Drw *drw;
+static Clr *scheme[SchemeLast];
+
+/* Xresources preferences */
+enum resource_type { STRING = 0, INTEGER = 1, FLOAT = 2 };
+typedef struct {
+  char *name;
+  enum resource_type type;
+  void *dst;
+} ResourcePref;
+
+static void load_xresources(void);
+static void resource_load(XrmDatabase db, char *name, enum resource_type rtype,
+                          void *dst);
+
+#include "config.h"
+
+/* static int (*fstrncmp)(const char *, const char *, size_t) = strncmp; */
+/* static char *(*fstrstr)(const char *, const char *) = strstr; */
+static char *cistrstr(const char *s, const char *sub);
+static int (*fstrncmp)(const char *, const char *, size_t) = strncasecmp;
+static char *(*fstrstr)(const char *, const char *) = cistrstr;
+
+static void appenditem(struct item *item, struct item **list,
+                       struct item **last) {
+  if (*last)
+    (*last)->right = item;
+  else
+    *list = item;
+
+  item->left = *last;
+  item->right = NULL;
+  *last = item;
+}
+
+static void calcoffsets(void) {
+  int i, n;
+
+  if (lines > 0)
+    /* n = lines * bh; */
+    n = lines * columns * bh;
+  else
+    n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">"));
+  /* calculate which items will begin the next page and previous page */
+  for (i = 0, next = curr; next; next = next->right)
+    if ((i += (lines > 0) ? bh : MIN(TEXTW(next->text), n)) > n)
+      break;
+  for (i = 0, prev = curr; prev && prev->left; prev = prev->left)
+    if ((i += (lines > 0) ? bh : MIN(TEXTW(prev->left->text), n)) > n)
+      break;
+}
+
+static void cleanup(void) {
+  size_t i;
+
+  XUngrabKey(dpy, AnyKey, AnyModifier, root);
+  for (i = 0; i < SchemeLast; i++)
+    free(scheme[i]);
+  drw_free(drw);
+  XSync(dpy, False);
+  XCloseDisplay(dpy);
+}
+
+static char *cistrstr(const char *h, const char *n) {
+  size_t i;
+
+  if (!n[0])
+    return (char *)h;
+
+  for (; *h; ++h) {
+    for (i = 0;
+         n[i] && tolower((unsigned char)n[i]) == tolower((unsigned char)h[i]);
+         ++i)
+      ;
+    if (n[i] == '\0')
+      return (char *)h;
+  }
+  return NULL;
+}
+
+static void drawhighlights(struct item *item, int x, int y, int maxw) {
+  int i, indent;
+  char *highlight;
+  char c;
+
+  if (!(strlen(item->text) && strlen(text)))
+    return;
+
+  drw_setscheme(drw,
+                scheme[item == sel ? SchemeSelHighlight : SchemeNormHighlight]);
+  for (i = 0, highlight = item->text; *highlight && text[i];) {
+    if (*highlight == text[i]) {
+      /* get indentation */
+      c = *highlight;
+      *highlight = '\0';
+      indent = TEXTW(item->text);
+      *highlight = c;
+
+      /* highlight character */
+      c = highlight[1];
+      highlight[1] = '\0';
+      drw_text(drw, x + indent - (lrpad / 2), y,
+               MIN(maxw - indent, TEXTW(highlight) - lrpad), bh, 0, highlight,
+               0);
+      highlight[1] = c;
+      i++;
+    }
+    highlight++;
+  }
+}
+
+static int drawitem(struct item *item, int x, int y, int w) {
+  int r;
+  if (item == sel)
+    drw_setscheme(drw, scheme[SchemeSel]);
+  else if (item->out)
+    drw_setscheme(drw, scheme[SchemeOut]);
+  else
+    drw_setscheme(drw, scheme[SchemeNorm]);
+
+  r = drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0);
+  drawhighlights(item, x, y, w);
+  return r;
+}
+
+static void recalculatenumbers() {
+  unsigned int numer = 0, denom = 0;
+  struct item *item;
+  if (matchend) {
+    numer++;
+    for (item = matchend; item && item->left; item = item->left)
+      numer++;
+  }
+  for (item = items; item && item->text; item++)
+    denom++;
+  snprintf(numbers, NUMBERSBUFSIZE, "%d/%d", numer, denom);
+}
+
+static void drawmenu(void) {
+  unsigned int curpos;
+  struct item *item;
+  int x = 0, y = 0, w;
+
+  drw_setscheme(drw, scheme[SchemeNorm]);
+  drw_rect(drw, 0, 0, mw, mh, 1, 1);
+
+  if (prompt && *prompt) {
+    drw_setscheme(drw, scheme[SchemeSel]);
+    x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0);
+  }
+  /* draw input field */
+  w = (lines > 0 || !matches) ? mw - x : inputw;
+  drw_setscheme(drw, scheme[SchemeNorm]);
+  drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);
+
+  curpos = TEXTW(text) - TEXTW(&text[cursor]);
+  if ((curpos += lrpad / 2 - 1) < w) {
+    drw_setscheme(drw, scheme[SchemeNorm]);
+    drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0);
+  }
+
+  recalculatenumbers();
+  if (lines > 0) {
+    /* draw grid */
+    int i = 0;
+    for (item = curr; item != next; item = item->right, i++)
+      drawitem(item, x + ((i / lines) * ((mw - x) / columns)),
+               y + (((i % lines) + 1) * bh), (mw - x) / columns);
+  } else if (matches) {
+    /* draw horizontal list */
+    x += inputw;
+    w = TEXTW("<");
+    if (curr->left) {
+      drw_setscheme(drw, scheme[SchemeNorm]);
+      drw_text(drw, x, 0, w, bh, lrpad / 2, "<", 0);
+    }
+    x += w;
+    for (item = curr; item != next; item = item->right)
+      /* x = drawitem(item, x, 0, MIN(TEXTW(item->text), mw - x - TEXTW(">")));
+       */
+      x = drawitem(
+          item, x, 0,
+          MIN(TEXTW(item->text), mw - x - TEXTW(">") - TEXTW(numbers)));
+    if (next) {
+      w = TEXTW(">");
+      drw_setscheme(drw, scheme[SchemeNorm]);
+      /* drw_text(drw, mw - w, 0, w, bh, lrpad / 2, ">", 0); */
+      drw_text(drw, mw - w - TEXTW(numbers), 0, w, bh, lrpad / 2, ">", 0);
+    }
+  }
+  drw_setscheme(drw, scheme[SchemeNorm]);
+  drw_text(drw, mw - TEXTW(numbers), 0, TEXTW(numbers), bh, lrpad / 2, numbers,
+           0);
+  drw_map(drw, win, 0, 0, mw, mh);
+}
+
+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");
+}
+
+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  ? 0
+         : da->distance < db->distance ? -1
+                                       : 1;
+}
+
+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;
+
+  /* walk through all items */
+  for (it = items; it && it->text; it++) {
+    if (text_len) {
+      itext_len = strlen(it->text);
+      pidx = 0;         /* pointer */
+      sidx = eidx = -1; /* start of match, end of match */
+      /* walk through item text */
+      for (i = 0; i < itext_len && (c = it->text[i]); i++) {
+        /* fuzzy match pattern */
+        if (!fstrncmp(&text[pidx], &c, 1)) {
+          if (sidx == -1)
+            sidx = i;
+          pidx++;
+          if (pidx == text_len) {
+            eidx = i;
+            break;
+          }
+        }
+      }
+      /* build list of matches */
+      if (eidx != -1) {
+        /* compute distance */
+        /* add penalty if match starts late (log(sidx+2))
+         * add penalty for long a match without many matching characters */
+        it->distance = log(sidx + 2) + (double)(eidx - sidx - text_len);
+        /* fprintf(stderr, "distance %s %f\n", it->text, it->distance); */
+        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 match(void) {
+  if (fuzzy) {
+    fuzzymatch();
+    return;
+  }
+  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) + 1;
+  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 movewordedge(int dir) {
+  if (dir < 0) { /* move cursor to the start of the word*/
+    while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
+      cursor = nextrune(-1);
+    while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
+      cursor = nextrune(-1);
+  } else { /* move cursor to the end of the word */
+    while (text[cursor] && strchr(worddelimiters, text[cursor]))
+      cursor = nextrune(+1);
+    while (text[cursor] && !strchr(worddelimiters, text[cursor]))
+      cursor = nextrune(+1);
+  }
+}
+
+static void keypress(XKeyEvent *ev) {
+  char buf[32];
+  int len;
+  KeySym ksym;
+  Status status;
+  int i, offscreen = 0;
+  struct item *tmpsel;
+
+  len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
+  switch (status) {
+  default: /* XLookupNone, XBufferOverflow */
+    return;
+  case XLookupChars:
+    goto insert;
+  case XLookupKeySym:
+  case XLookupBoth:
+    break;
+  }
+
+  if (ev->state & ControlMask) {
+    switch (ksym) {
+    case XK_a:
+      ksym = XK_Home;
+      break;
+    case XK_b:
+      ksym = XK_Left;
+      break;
+    case XK_c:
+      ksym = XK_Escape;
+      break;
+    case XK_d:
+      ksym = XK_Delete;
+      break;
+    case XK_e:
+      ksym = XK_End;
+      break;
+    case XK_f:
+      ksym = XK_Right;
+      break;
+    case XK_g:
+      ksym = XK_Escape;
+      break;
+    case XK_h:
+      ksym = XK_BackSpace;
+      break;
+    case XK_i:
+      ksym = XK_Tab;
+      break;
+    case XK_j: /* fallthrough */
+    case XK_J: /* fallthrough */
+    case XK_m: /* fallthrough */
+    case XK_M:
+      ksym = XK_Return;
+      ev->state &= ~ControlMask;
+      break;
+    case XK_n:
+      ksym = XK_Down;
+      break;
+    case XK_p:
+      ksym = XK_Up;
+      break;
+
+    case XK_k: /* delete right */
+      text[cursor] = '\0';
+      match();
+      break;
+    case XK_u: /* delete left */
+      insert(NULL, 0 - cursor);
+      break;
+    case XK_w: /* delete word */
+      while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
+        insert(NULL, nextrune(-1) - cursor);
+      while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
+        insert(NULL, nextrune(-1) - cursor);
+      break;
+    case XK_y: /* paste selection */
+    case XK_Y:
+      XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY, utf8,
+                        utf8, win, CurrentTime);
+      return;
+    case XK_Left:
+    case XK_KP_Left:
+      movewordedge(-1);
+      goto draw;
+    case XK_Right:
+    case XK_KP_Right:
+      movewordedge(+1);
+      goto draw;
+    case XK_Return:
+    case XK_KP_Enter:
+      break;
+    case XK_bracketleft:
+      cleanup();
+      exit(1);
+    default:
+      return;
+    }
+  } else if (ev->state & Mod1Mask) {
+    switch (ksym) {
+    case XK_b:
+      movewordedge(-1);
+      goto draw;
+    case XK_f:
+      movewordedge(+1);
+      goto draw;
+    case XK_g:
+      ksym = XK_Home;
+      break;
+    case XK_G:
+      ksym = XK_End;
+      break;
+    case XK_h:
+      ksym = XK_Up;
+      break;
+    case XK_j:
+      ksym = XK_Next;
+      break;
+    case XK_k:
+      ksym = XK_Prior;
+      break;
+    case XK_l:
+      ksym = XK_Down;
+      break;
+    default:
+      return;
+    }
+  }
+
+  switch (ksym) {
+  default:
+  insert:
+    if (!iscntrl(*buf))
+      insert(buf, len);
+    break;
+  case XK_Delete:
+  case XK_KP_Delete:
+    if (text[cursor] == '\0')
+      return;
+    cursor = nextrune(+1);
+    /* fallthrough */
+  case XK_BackSpace:
+    if (cursor == 0)
+      return;
+    insert(NULL, nextrune(-1) - cursor);
+    break;
+  case XK_End:
+  case XK_KP_End:
+    if (text[cursor] != '\0') {
+      cursor = strlen(text);
+      break;
+    }
+    if (next) {
+      /* jump to end of list and position items in reverse */
+      curr = matchend;
+      calcoffsets();
+      curr = prev;
+      calcoffsets();
+      while (next && (curr = curr->right))
+        calcoffsets();
+    }
+    sel = matchend;
+    break;
+  case XK_Escape:
+    cleanup();
+    exit(1);
+  case XK_Home:
+  case XK_KP_Home:
+    if (sel == matches) {
+      cursor = 0;
+      break;
+    }
+    sel = curr = matches;
+    calcoffsets();
+    break;
+  case XK_Left:
+    if (columns > 1) {
+      if (!sel)
+        return;
+      tmpsel = sel;
+      for (i = 0; i < lines; i++) {
+        if (!tmpsel->left || tmpsel->left->right != tmpsel) {
+          if (offscreen)
+            break;
+          return;
+        }
+        if (tmpsel == curr)
+          offscreen = 1;
+        tmpsel = tmpsel->left;
+      }
+      sel = tmpsel;
+      if (offscreen) {
+        curr = prev;
+        calcoffsets();
+      }
+      break;
+    }
+  case XK_KP_Left:
+    if (cursor > 0 && (!sel || !sel->left || lines > 0)) {
+      cursor = nextrune(-1);
+      break;
+    }
+    if (lines > 0)
+      return;
+    /* fallthrough */
+  case XK_Up:
+  case XK_KP_Up:
+    if (sel && sel->left && (sel = sel->left)->right == curr) {
+      curr = prev;
+      calcoffsets();
+    }
+    break;
+  case XK_Next:
+  case XK_KP_Next:
+    if (!next)
+      return;
+    sel = curr = next;
+    calcoffsets();
+    break;
+  case XK_Prior:
+  case XK_KP_Prior:
+    if (!prev)
+      return;
+    sel = curr = prev;
+    calcoffsets();
+    break;
+  case XK_Return:
+  case XK_KP_Enter:
+    puts((sel && !(ev->state & ShiftMask)) ? sel->text_output : text);
+    if (!(ev->state & ControlMask)) {
+      cleanup();
+      exit(0);
+    }
+    if (sel)
+      sel->out = 1;
+    break;
+  case XK_Right:
+    if (columns > 1) {
+      if (!sel)
+        return;
+      tmpsel = sel;
+      for (i = 0; i < lines; i++) {
+        if (!tmpsel->right || tmpsel->right->left != tmpsel) {
+          if (offscreen)
+            break;
+          return;
+        }
+        tmpsel = tmpsel->right;
+        if (tmpsel == next)
+          offscreen = 1;
+      }
+      sel = tmpsel;
+      if (offscreen) {
+        curr = next;
+        calcoffsets();
+      }
+      break;
+    }
+  case XK_KP_Right:
+    if (text[cursor] != '\0') {
+      cursor = nextrune(+1);
+      break;
+    }
+    if (lines > 0)
+      return;
+    /* fallthrough */
+  case XK_Down:
+  case XK_KP_Down:
+    if (sel && sel->right && (sel = sel->right) == next) {
+      curr = next;
+      calcoffsets();
+    }
+    break;
+  case XK_Tab:
+    if (!sel)
+      return;
+    strncpy(text, sel->text, sizeof text - 1);
+    text[sizeof text - 1] = '\0';
+    cursor = strlen(text);
+    match();
+    break;
+  }
+
+draw:
+  drawmenu();
+}
+
+static void paste(void) {
+  char *p, *q;
+  int di;
+  unsigned long dl;
+  Atom da;
+
+  /* we have been given the current selection, now insert it into input */
+  if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False, utf8,
+                         &da, &di, &dl, &dl, (unsigned char **)&p) == Success &&
+      p) {
+    insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p));
+    XFree(p);
+  }
+  drawmenu();
+}
+
+static void readstdin(void) {
+  char buf[sizeof text], *p;
+  size_t i, imax = 0, size = 0;
+  unsigned int tmpmax = 0;
+
+  /* read each line from stdin and add it to the item list */
+  for (i = 0; fgets(buf, sizeof buf, stdin); i++) {
+    if (i + 1 >= size / sizeof *items)
+      if (!(items = realloc(items, (size += BUFSIZ))))
+        die("cannot realloc %u bytes:", size);
+    if ((p = strchr(buf, '\n')))
+      *p = '\0';
+    if (!(items[i].text = strdup(buf)))
+      die("cannot strdup %u bytes:", strlen(buf) + 1);
+    if (separator &&
+        (p = separator_greedy ? strrchr(items[i].text, separator)
+                              : strchr(items[i].text, separator))) {
+      *p = '\0';
+      items[i].text_output = ++p;
+    } else {
+      items[i].text_output = items[i].text;
+    }
+    if (separator_reverse) {
+      p = items[i].text;
+      items[i].text = items[i].text_output;
+      items[i].text_output = p;
+    }
+    items[i].out = 0;
+    drw_font_getexts(drw->fonts, buf, strlen(buf), &tmpmax, NULL);
+    if (tmpmax > inputw) {
+      inputw = tmpmax;
+      imax = i;
+    }
+  }
+  if (items)
+    items[i].text = NULL;
+  inputw = items ? TEXTW(items[imax].text) : 0;
+  lines = MIN(lines, i);
+}
+
+void resource_load(XrmDatabase db, char *name, enum resource_type rtype,
+                   void *dst) {
+  char *sdst = NULL;
+  int *idst = NULL;
+  float *fdst = NULL;
+  sdst = dst;
+  idst = dst;
+  fdst = dst;
+  char fullname[256];
+  char *type;
+  XrmValue ret;
+  snprintf(fullname, sizeof(fullname), "%s.%s", "dmenu", name);
+  fullname[sizeof(fullname) - 1] = '\0';
+  XrmGetResource(db, fullname, "*", &type, &ret);
+  if (!(ret.addr == NULL || strncmp("String", type, 64))) {
+    switch (rtype) {
+    case STRING:
+      strcpy(sdst, ret.addr);
+      break;
+    case INTEGER:
+      *idst = strtoul(ret.addr, NULL, 10);
+      break;
+    case FLOAT:
+      *fdst = strtof(ret.addr, NULL);
+      break;
+    }
+  }
+}
+
+void load_xresources(void) {
+  Display *display;
+  char *resm;
+  XrmDatabase db;
+  ResourcePref *p;
+  display = XOpenDisplay(NULL);
+  resm = XResourceManagerString(display);
+  if (!resm)
+    return;
+  db = XrmGetStringDatabase(resm);
+  for (p = resources; p < resources + LENGTH(resources); p++)
+    resource_load(db, p->name, p->type, p->dst);
+  XCloseDisplay(display);
+}
+
+static void run(void) {
+  XEvent ev;
+
+  while (!XNextEvent(dpy, &ev)) {
+    if (XFilterEvent(&ev, win))
+      continue;
+    switch (ev.type) {
+    case DestroyNotify:
+      if (ev.xdestroywindow.window != win)
+        break;
+      cleanup();
+      exit(1);
+    case Expose:
+      if (ev.xexpose.count == 0)
+        drw_map(drw, win, 0, 0, mw, mh);
+      break;
+    case FocusIn:
+      /* regrab focus from parent window */
+      if (ev.xfocus.window != win)
+        grabfocus();
+      break;
+    case KeyPress:
+      keypress(&ev.xkey);
+      break;
+    case SelectionNotify:
+      if (ev.xselection.property == utf8)
+        paste();
+      break;
+    case VisibilityNotify:
+      if (ev.xvisibility.state != VisibilityUnobscured)
+        XRaiseWindow(dpy, win);
+      break;
+    }
+  }
+}
+
+static void setup(void) {
+  int x, y, i, j;
+  unsigned int du;
+  XSetWindowAttributes swa;
+  XIM xim;
+  Window w, dw, *dws;
+  XWindowAttributes wa;
+  XClassHint ch = {"dmenu", "dmenu"};
+#ifdef XINERAMA
+  XineramaScreenInfo *info;
+  Window pw;
+  int a, di, n, area = 0;
+#endif
+  /* init appearance */
+  for (j = 0; j < SchemeLast; j++)
+    scheme[j] = drw_scm_create(drw, colors[j], 2);
+
+  clip = XInternAtom(dpy, "CLIPBOARD", False);
+  utf8 = XInternAtom(dpy, "UTF8_STRING", False);
+
+  /* calculate menu geometry */
+  bh = drw->fonts->h + 2;
+  lines = MAX(lines, 0);
+  mh = (lines + 1) * bh;
+#ifdef XINERAMA
+  i = 0;
+  if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
+    XGetInputFocus(dpy, &w, &di);
+    if (mon >= 0 && mon < n)
+      i = mon;
+    else if (w != root && w != PointerRoot && w != None) {
+      /* find top-level window containing current input focus */
+      do {
+        if (XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws)
+          XFree(dws);
+      } while (w != root && w != pw);
+      /* find xinerama screen with which the window intersects most */
+      if (XGetWindowAttributes(dpy, pw, &wa))
+        for (j = 0; j < n; j++)
+          if ((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) >
+              area) {
+            area = a;
+            i = j;
+          }
+    }
+    /* no focused window is on screen, so use pointer location instead */
+    if (mon < 0 && !area &&
+        XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
+      for (i = 0; i < n; i++)
+        if (INTERSECT(x, y, 1, 1, info[i]))
+          break;
+
+    x = info[i].x_org;
+    y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
+    mw = info[i].width;
+    XFree(info);
+  } else
+#endif
+  {
+    if (!XGetWindowAttributes(dpy, parentwin, &wa))
+      die("could not get embedding window attributes: 0x%lx", parentwin);
+    x = 0;
+    y = topbar ? 0 : wa.height - mh;
+    mw = wa.width;
+  }
+  promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
+  inputw = MIN(inputw, mw / 3);
+  match();
+
+  /* create menu window */
+  swa.override_redirect = True;
+  swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
+  swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
+  /* win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0, */
+  win = XCreateWindow(dpy, parentwin, x, y, mw, mh, border_width,
+                      CopyFromParent, CopyFromParent, CopyFromParent,
+                      CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
+  XSetWindowBorder(dpy, win, scheme[SchemeSel][ColBg].pixel);
+  XSetClassHint(dpy, win, &ch);
+
+  /* input methods */
+  if ((xim = XOpenIM(dpy, NULL, NULL, NULL)) == NULL)
+    die("XOpenIM failed: could not open input device");
+
+  xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
+                  XNClientWindow, win, XNFocusWindow, win, NULL);
+
+  XMapRaised(dpy, win);
+  if (embed) {
+    XSelectInput(dpy, parentwin, FocusChangeMask | SubstructureNotifyMask);
+    if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) {
+      for (i = 0; i < du && dws[i] != win; ++i)
+        XSelectInput(dpy, dws[i], FocusChangeMask);
+      XFree(dws);
+    }
+    grabfocus();
+  }
+  drw_resize(drw, mw, mh);
+  drawmenu();
+}
+
+static void usage(void) {
+  fputs("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
+        "             [-nb color] [-nf color] [-sb color] [-sf color]\n"
+        "             [-nhb color] [-nhf color] [-shb color] [-shf color]\n"
+        "             [-d separator] [-D separator] [-w windowid]\n",
+        stderr);
+  exit(1);
+}
+
+int main(int argc, char *argv[]) {
+  XWindowAttributes wa;
+  int i, fast = 0;
+
+  XrmInitialize();
+  load_xresources();
+
+  for (i = 1; i < argc; i++)
+    /* these options take no arguments */
+    if (!strcmp(argv[i], "-v")) { /* prints version information */
+      puts("dmenu-" VERSION);
+      exit(0);
+    } else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
+      topbar = 0;
+    else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */
+      fast = 1;
+    else if (!strcmp(argv[i], "-F")) /* grabs keyboard before reading stdin */
+      fuzzy = 0;
+    else if (!strcmp(argv[i], "-s")) { /* case-sensitive item matching */
+      fstrncmp = strncmp;
+      fstrstr = strstr;
+    } else if (i + 1 == argc)
+      usage();
+    /* these options take one argument */
+    else if (!strcmp(argv[i], "-g")) { /* number of columns in grid */
+      columns = atoi(argv[++i]);
+      if (lines == 0)
+        lines = 1;
+    } else if (!strcmp(argv[i], "-l")) { /* number of lines in grid */
+      lines = atoi(argv[++i]);
+      if (columns == 0)
+        columns = 1;
+    } else if (!strcmp(argv[i], "-m"))
+      mon = atoi(argv[++i]);
+    else if (!strcmp(argv[i], "-p")) /* adds prompt to left of input field */
+      prompt = argv[++i];
+    else if (!strcmp(argv[i], "-fn")) /* font or font set */
+      fonts[0] = argv[++i];
+    else if (!strcmp(argv[i], "-nb")) /* normal background color */
+      colors[SchemeNorm][ColBg] = argv[++i];
+    else if (!strcmp(argv[i], "-nf")) /* normal foreground color */
+      colors[SchemeNorm][ColFg] = argv[++i];
+    else if (!strcmp(argv[i], "-sb")) /* selected background color */
+      colors[SchemeSel][ColBg] = argv[++i];
+    else if (!strcmp(argv[i], "-sf")) /* selected foreground color */
+      colors[SchemeSel][ColFg] = argv[++i];
+    else if (!strcmp(argv[i], "-nhb")) /* normal hi background color */
+      colors[SchemeNormHighlight][ColBg] = argv[++i];
+    else if (!strcmp(argv[i], "-nhf")) /* normal hi foreground color */
+      colors[SchemeNormHighlight][ColFg] = argv[++i];
+    else if (!strcmp(argv[i], "-shb")) /* selected hi background color */
+      colors[SchemeSelHighlight][ColBg] = argv[++i];
+    else if (!strcmp(argv[i], "-shf")) /* selected hi foreground color */
+      colors[SchemeSelHighlight][ColFg] = argv[++i];
+    else if (!strcmp(argv[i], "-d") || /* field separator */
+             (separator_greedy = !strcmp(argv[i], "-D"))) {
+      separator = argv[++i][0];
+      separator_reverse = argv[i][1] == '|';
+    } else if (!strcmp(argv[i], "-w")) /* embedding window id */
+      embed = argv[++i];
+    else
+      usage();
+
+  if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
+    fputs("warning: no locale support\n", stderr);
+  if (!(dpy = XOpenDisplay(NULL)))
+    die("cannot open display");
+  screen = DefaultScreen(dpy);
+  root = RootWindow(dpy, screen);
+  if (!embed || !(parentwin = strtol(embed, NULL, 0)))
+    parentwin = root;
+  if (!XGetWindowAttributes(dpy, parentwin, &wa))
+    die("could not get embedding window attributes: 0x%lx", parentwin);
+  drw = drw_create(dpy, screen, root, wa.width, wa.height);
+  if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
+    die("no fonts could be loaded.");
+  lrpad = drw->fonts->h;
+
+#ifdef __OpenBSD__
+  if (pledge("stdio rpath", NULL) == -1)
+    die("pledge");
+#endif
+
+  if (fast && !isatty(0)) {
+    grabkeyboard();
+    readstdin();
+  } else {
+    readstdin();
+    grabkeyboard();
+  }
+  setup();
+  run();
+
+  return 1; /* unreachable */
+}