Add support for canvas and multipart

Quite incomplete canvas implementation. Crucially, the layout engine
can't do much with whatever is drawn because it doesn't support images
yet.

I've re-introduced multipart as well, with the FormData API. For the
append function I've also introduced a hack to the JS binding generator
that allows requesting the JSContext pointer in nim procs. Really I
should just fix the union generator thing and add support for overloading.

In conclusion, for now the only thing canvas can be used for is exporting
it as PNG and uploading it somewhere. Also, we now have PNG encoding and
decoding too. (Now if only we had sixels as well...)

1 files changed, 3 insertions, 1 deletions

diff --git a/src/config/toml.nim b/src/config/toml.nim
index c34e46a7..05a202ab 100644
--- a/src/config/toml.nim
+++ b/src/config/toml.nim
@@ -1,5 +1,6 @@
 import streams
 import tables
+import options
 import times
 import strutils
 import strformat
@@ -367,6 +368,7 @@ proc consumeNumber(state: var TomlParser, c: char): TomlValue =
 
   if state.has(1):
     if state.peek(0) == 'E' or state.peek(0) == 'e':
+      isfloat = true
       var j = 2
       if state.peek(1) == '-' or state.peek(1) == '+':
         inc j
@@ -383,7 +385,7 @@ proc consumeNumber(state: var TomlParser, c: char): TomlValue =
     return TomlValue(vt: VALUE_FLOAT, f: val)
 
   let val = parseInt64(repr)
-  return TomlValue(vt: VALUE_INTEGER, i: val)
+  return TomlValue(vt: VALUE_INTEGER, i: val.get)
 
 proc consumeValue(state: var TomlParser): TomlValue