Fix #15, Support multipart post.

lib/Curl.js

@@ -1,10 +1,12 @@
-// Generated by ToffeeScript 1.4.0
+// Generated by ToffeeScript 1.6.2
 (function() {
-  var Curl, curls, id, m, p;
+  var Curl, curls, e, id, m, p,
+    __hasProp = {}.hasOwnProperty;
 
   try {
     Curl = require(__dirname + '/../build/Release/node-curl').Curl;
-  } catch (e) {
+  } catch (_error) {
+    e = _error;
     Curl = require(__dirname + '/../build/default/node-curl').Curl;
   }
 
@@ -12,11 +14,45 @@
     return this.options[option_id] = value;
   };
 
+  Curl.prototype.setopt_httppost = function(rows) {
+    var cols, k, option_id, row, v;
+    this.httppost = (function() {
+      var _i, _len, _results;
+      _results = [];
+      for (_i = 0, _len = rows.length; _i < _len; _i++) {
+        row = rows[_i];
+        cols = [];
+        for (k in row) {
+          if (!__hasProp.call(row, k)) continue;
+          v = row[k];
+          k = k.toUpperCase();
+          if ((option_id = Curl.httppost_options[k]) != null) {
+            cols.push(option_id);
+            if (!(v instanceof Buffer)) {
+              v = new Buffer(v.toString());
+            }
+            cols.push(v);
+          } else {
+            throw new Error("invalid http post option " + k);
+          }
+        }
+        _results.push(cols);
+      }
+      return _results;
+    })();
+    this.setopt_httppost_(this.httppost);
+    return this;
+  };
+
   Curl.prototype.setopt = function(option_name, value) {
     var option, option_id;
     option = option_name.toUpperCase();
     if ((option_id = Curl.user_options[option]) != null) {
-      this.setopt_user_(option_id, value);
+      if (option === 'MULTIPART') {
+        this.setopt_httppost(value);
+      } else {
+        this.setopt_user_(option_id, value);
+      }
     } else if ((option_id = Curl.slist_options[option]) != null) {
       this.setopt_slist_(option_id, value);
     } else if ((option_id = Curl.integer_options[option]) != null) {
@@ -50,7 +86,8 @@
 
   Curl.user_options = {
     RAW: 'RAW',
-    DEBUG: 'DEBUG'
+    DEBUG: 'DEBUG',
+    MULTIPART: 'MULTIPART'
   };
 
   id = 0;