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// ResultData.cs
//
// Author:
// Lluis Sanchez Gual <lluis@novell.com>
//
// Copyright (c) 2008 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
//
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using Mono.Debugging.Client;
using Mono.Debugging.Backend;
namespace MonoDevelop.Debugger.Gdb
{
class ResultData: IEnumerable
{
Hashtable props;
object[] array;
bool isArrayProperty;
public int Count {
get {
if (array != null)
return array.Length;
else if (props != null)
return props.Count;
else
return 0;
}
}
public string GetValue (string name)
{
return (string) props [name];
}
public int GetInt (string name)
{
return int.Parse (GetValue (name));
}
public string GetValue (int index)
{
return (string) array [index];
}
public ResultData GetObject (string name)
{
return (ResultData) props [name];
}
public ResultData GetObject (int index)
{
return (ResultData) array [index];
}
public object[] GetAllValues (string name)
{
object ob = props [name];
if (ob == null)
return new object [0];
ResultData rd = ob as ResultData;
if (rd != null && rd.isArrayProperty)
return rd.array;
else
return new object[] { ob };
}
protected void ReadResults (string str, int pos)
{
ReadTuple (str, ref pos, this);
}
void ReadResult (string str, ref int pos, out string name, out object value)
{
name = null;
value = null;
name = ReadString (str, '=', ref pos);
ReadChar (str, ref pos, '=');
value = ReadValue (str, ref pos);
}
string ReadString (string str, char term, ref int pos)
{
StringBuilder sb = new StringBuilder ();
while (pos < str.Length && str [pos] != term) {
if (str [pos] == '\\') {
pos++;
if (pos >= str.Length)
break;
}
sb.Append (str [pos]);
pos++;
}
return sb.ToString ();
}
object ReadValue (string str, ref int pos)
{
if (str [pos] == '"') {
pos++;
string ret = ReadString (str, '"', ref pos);
pos++;
return ret;
}
if (str [pos] == '{') {
pos++;
ResultData data = new ResultData ();
ReadTuple (str, ref pos, data);
return data;
}
if (str [pos] == '[') {
pos++;
return ReadArray (str, ref pos);
}
// Single value tuple
string name;
object val;
ReadResult (str, ref pos, out name, out val);
ResultData sdata = new ResultData ();
sdata.props = new Hashtable ();
sdata.props [name] = val;
return sdata;
}
void ReadTuple (string str, ref int pos, ResultData data)
{
if (data.props == null)
data.props = new Hashtable ();
while (pos < str.Length && str [pos] != '}') {
string name;
object val;
ReadResult (str, ref pos, out name, out val);
if (data.props.ContainsKey (name)) {
object ob = data.props [name];
ResultData rd = ob as ResultData;
if (rd != null && rd.isArrayProperty) {
object[] newArr = new object [rd.array.Length + 1];
Array.Copy (rd.array, newArr, rd.array.Length);
newArr [rd.array.Length] = val;
rd.array = newArr;
} else {
rd = new ResultData ();
rd.isArrayProperty = true;
rd.array = new object [2];
rd.array [0] = ob;
rd.array [1] = val;
data.props [name] = rd;
}
} else {
data.props [name] = val;
}
TryReadChar (str, ref pos, ',');
}
TryReadChar (str, ref pos, '}');
}
ResultData ReadArray (string str, ref int pos)
{
ArrayList list = new ArrayList ();
while (pos < str.Length && str [pos] != ']') {
object val = ReadValue (str, ref pos);
list.Add (val);
TryReadChar (str, ref pos, ',');
}
TryReadChar (str, ref pos, ']');
ResultData arr = new ResultData ();
arr.array = list.ToArray ();
return arr;
}
void ReadChar (string str, ref int pos, char c)
{
if (!TryReadChar (str, ref pos, c))
ThrownParseError (str, pos);
}
bool TryReadChar (string str, ref int pos, char c)
{
if (pos >= str.Length || str [pos] != c)
return false;
pos++;
return true;
}
void ThrownParseError (string str, int pos)
{
if (pos > str.Length)
pos = str.Length;
str = str.Insert (pos, "[!]");
throw new InvalidOperationException ("Error parsing result: " + str);
}
public IEnumerator GetEnumerator ()
{
if (props != null)
return props.Values.GetEnumerator ();
else if (array != null)
return array.GetEnumerator ();
else
return new object[0].GetEnumerator ();
}
}
}
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