Merge pull request brianc#172 from linearray/fixbytea

brianc#161: Fixed bytea decode and added 'hex' for pg >= 9.0.

Author: Brian C

lib/textParsers.js

@@ -119,9 +119,32 @@ var parseInterval = function(val) {
 };
 
 var parseByteA = function(val) {
-  return new Buffer(val.replace(/\\([0-7]{3})/g, function (full_match, code) {
-    return String.fromCharCode(parseInt(code, 8));
-  }).replace(/\\\\/g, "\\"), "binary");
+  if(/^\\x/.test(val)){
+    // new 'hex' style response (pg >9.0)
+    return new Buffer(val.substr(2), 'hex');
+  }else{
+    out = ""
+    i = 0
+    while(i < val.length){
+      if(val[i] != "\\"){
+        out += val[i]
+        ++i
+      }else{
+        if(val.substr(i+1,3).match(/[0-7]{3}/)){
+          out += String.fromCharCode(parseInt(val.substr(i+1,3),8))
+          i += 4
+        }else{
+          backslashes = 1
+          while(i+backslashes < val.length && val[i+backslashes] == "\\")
+            backslashes++
+          for(k=0; k<Math.floor(backslashes/2); ++k)
+            out += "\\"
+          i += Math.floor(backslashes / 2) * 2
+        }
+      }
+    }
+    return new Buffer(out,"binary");
+  }
 }
 
 var maxLen = Number.MAX_VALUE.toString().length