Remove unused function from codemirror.js

codemirror · Aug 23, 2012 · 24eb80b · 24eb80b
1 parent 805b5a4
commit 24eb80b
Showing 1 changed file with 0 additions and 29 deletions.
diff --git a/lib/codemirror.js b/lib/codemirror.js
@@ -1654,35 +1654,6 @@ window.CodeMirror = (function() {
               markerClass: marker && marker.style, lineClass: line.className, bgClass: line.bgClassName};
     }
 
-    // These are used to go from pixel positions to character
-    // positions, taking varying character widths into account.
-    function charFromX(line, x) {
-      if (x <= 0) return 0;
-      var lineObj = getLine(line), text = lineObj.text;
-      function getX(len) {
-        return measureLine(lineObj, len).left;
-      }
-      var from = 0, fromX = 0, to = text.length, toX;
-      // Guess a suitable upper bound for our search.
-      var estimated = Math.min(to, Math.ceil(x / charWidth()));
-      for (;;) {
-        var estX = getX(estimated);
-        if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
-        else {toX = estX; to = estimated; break;}
-      }
-      if (x > toX) return to;
-      // Try to guess a suitable lower bound as well.
-      estimated = Math.floor(to * 0.8); estX = getX(estimated);
-      if (estX < x) {from = estimated; fromX = estX;}
-      // Do a binary search between these bounds.
-      for (;;) {
-        if (to - from <= 1) return (toX - x > x - fromX) ? from : to;
-        var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
-        if (middleX > x) {to = middle; toX = middleX;}
-        else {from = middle; fromX = middleX;}
-      }
-    }
-
     function measureLine(line, ch) {
       if (ch == 0) return {top: 0, left: 0};
       var wbr = options.lineWrapping && ch < line.text.length &&