Add value getters for the various TNetstringNode types.
--- a/tnetstring.nim Wed May 20 00:27:16 2015 +0000
+++ b/tnetstring.nim Tue May 19 19:39:32 2015 -0700
@@ -184,6 +184,50 @@
result.elems = @[]
+proc getStr*( node: TNetstringNode, default: string = "" ): string =
+ ## Retrieves the string value of a `TNetstringString TNetstringNodee`.
+ ## Returns ``default`` if ``node`` is not a ``TNetstringString``.
+ if node.kind != TNetstringString: return default
+ return node.str
+
+
+proc getInt*( node: TNetstringNode, default: BiggestInt = 0 ): BiggestInt =
+ ## Retrieves the int value of a `TNetstringInt TNetstringNode`.
+ ## Returns ``default`` if ``node`` is not a ``TNetstringInt``.
+ if node.kind != TNetstringInt: return default
+ return node.num
+
+
+proc getFloat*( node: TNetstringNode, default: float = 0.0 ): float =
+ ## Retrieves the float value of a `TNetstringFloat TNetstringNode`.
+ ## Returns ``default`` if ``node`` is not a ``TNetstringFloat``.
+ if node.kind != TNetstringFloat: return default
+ return node.fnum
+
+
+proc getBool*( node: TNetstringNode, default: bool = false ): bool =
+ ## Retrieves the bool value of a `TNetstringBool TNetstringNode`.
+ ## Returns ``default`` if ``node`` is not a ``TNetstringBool``.
+ if node.kind != TNetstringBool: return default
+ return node.bval
+
+
+proc getFields*( node: TNetstringNode,
+ default: seq[tuple[key: string, val: TNetstringNode]] = @[] ):
+ seq[tuple[key: string, val: TNetstringNode]] =
+ ## Retrieves the key, value pairs of a `TNetstringObject TNetstringNode`.
+ ## Returns ``default`` if ``node`` is not a ``TNetstringObject``.
+ if node.kind != TNetstringObject: return default
+ return node.fields
+
+
+proc getElems*( node: TNetstringNode, default: seq[TNetstringNode] = @[] ): seq[TNetstringNode] =
+ ## Retrieves the values of a `TNetstringArray TNetstringNode`.
+ ## Returns ``default`` if ``node`` is not a ``TNetstringArray``.
+ if node.kind != TNetstringArray: return default
+ return node.elems
+
+
proc parse_tnetstring*( data: string ): TNetstringNode =
## Given an encoded tnetstring, parse and return a TNetstringNode.
var
@@ -630,9 +674,33 @@
tnet_obj = parse_tnetstring( tstr )
doAssert( tstr == tnet_obj.dump_tnetstring )
+ # Value fetching methods
+ #
+ var tnet_null = newTNetstringNull()
+ tnet_obj = newTNetstringString( "Hello." )
+ doAssert( tnet_obj.getStr == "Hello." )
+ doAssert( tnet_null.getStr("nope") == "nope" )
+ doAssert( tnet_null.getStr == "" )
+ tnet_obj = newTNetstringInt( 42 )
+ doAssert( tnet_obj.getInt == 42 )
+ doAssert( tnet_null.getInt == 0 )
+ doAssert( tnet_null.getInt(1) == 1 )
+ tnet_obj = newTNetstringFloat( 1.0 )
+ doAssert( tnet_obj.getFloat == 1.0 )
+ doAssert( tnet_null.getFloat == 0 )
+ doAssert( tnet_null.getFloat(0.1) == 0.1 )
+ tnet_obj = newTNetstringObject()
+ tnet_obj[ "yay" ] = newTNetstringInt( 1 )
+ doAssert( tnet_obj.getFields[0].val == newTNetstringInt(1) )
+ doAssert( tnet_null.getFields.len == 0 )
+ tnet_obj = newTNetstringArray()
+ tnet_obj.add( newTNetstringInt(1) )
+ doAssert( tnet_obj.getElems[0] == newTNetstringInt(1) )
+ doAssert( tnet_null.getElems.len == 0 )
+
+
echo "* Tests passed!"
-
while true and defined( testing ):
for line in readline( stdin ).split_lines:
let input = line.strip