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socialcalc/socialcalc-3.js  view on Meta::CPAN

      else if (ch>=97) c = 26*c + ch-96;
      else if (ch>=65) c = 26*c + ch-64;
      }
   SocialCalc.coordToCol[cr] = c;
   SocialCalc.coordToRow[cr] = r;
   return {row: r, col: c};

   }

SocialCalc.ParseRange = function(range) {
   var pos, cr, cr1, cr2;
   if (!range) range = "A1:A1"; // error return, hopefully benign
   range = range.toUpperCase();
   pos = range.indexOf(":");
   if (pos>=0) {
      cr = range.substring(0,pos);
      cr1 = SocialCalc.coordToCr(cr);
      cr1.coord = cr;
      cr = range.substring(pos+1);
      cr2 = SocialCalc.coordToCr(cr);
      cr2.coord = cr;
      }
   else {
      cr1 = SocialCalc.coordToCr(range);
      cr1.coord = range;
      cr2 = SocialCalc.coordToCr(range);
      cr2.coord = range;
      }
   return {cr1: cr1, cr2: cr2};
   }

SocialCalc.decodeFromSave = function(s) {
   if (typeof s != "string") return s;
   if (s.indexOf("\\")==-1) return s; // for performace reasons: replace nothing takes up time
   var r=s.replace(/\\c/g,":");
   r=r.replace(/\\n/g,"\n");
   return r.replace(/\\b/g,"\\");
   }

SocialCalc.decodeFromAjax = function(s) {
   if (typeof s != "string") return s;
   if (s.indexOf("\\")==-1) return s; // for performace reasons: replace nothing takes up time
   var r=s.replace(/\\c/g,":");
   r=r.replace(/\\n/g,"\n");
   r=r.replace(/\\e/g,"]]");
   return r.replace(/\\b/g,"\\");
   }

SocialCalc.encodeForSave = function(s) {
   if (typeof s != "string") return s;
   if (s.indexOf("\\")!=-1) // for performace reasons: replace nothing takes up time
      s=s.replace(/\\/g,"\\b");
   if (s.indexOf(":")!=-1)
      s=s.replace(/:/g,"\\c");
   if (s.indexOf("\n")!=-1)
      s=s.replace(/\n/g,"\\n");
   return s;
   }

//
// Returns estring where &, <, >, " are HTML escaped
// 
SocialCalc.special_chars = function(string) {

   if (/[&<>"]/.test(string)) { // only do "slow" replaces if something to replace
      string = string.replace(/&/g, "&amp;");
      string = string.replace(/</g, "&lt;");
      string = string.replace(/>/g, "&gt;");
      string = string.replace(/"/g, "&quot;");
      }
   return string;

   }

SocialCalc.Lookup = function(value, list) {

   for (i=0; i<list.length; i++) {
      if (list[i] > value) {
         if (i>0) return i-1;
         else return null;
         }
      }
   return list.length-1; // if all smaller, matches last

   }

//
// setStyles(element, cssText)
//
// Takes a pseudo style string (e.g., text-align must be textAlign) and sets
// the element's style value for each style name listed (leaving others unchanged).
// OK to call with null cssText.
//

SocialCalc.setStyles = function (element, cssText) {

   var parts, part, pos, name, value;

   if (!cssText) return;

   parts = cssText.split(";");
   for (part=0; part<parts.length; part++) {
      pos = parts[part].indexOf(":"); // find first colon (could be one in url)
      if (pos != -1) {
         name = parts[part].substring(0, pos);
         value = parts[part].substring(pos+1);
         if (name && value) { // if non-null name and value, set style
            element.style[name] = value;
            }
         }
//      namevalue = parts[part].split(":");
//      if (namevalue[0]) element.style[namevalue[0]] = namevalue[1];
      }

   }

//
// GetViewportInfo() - returns object with viewport width and height, and scroll offsets
//
// Flanagan, JavaScript, 5th Edition, page 276
//