1824 lines
64 KiB
C#
1824 lines
64 KiB
C#
#region LICENSE
|
|
/**
|
|
* MIT License
|
|
*
|
|
* Copyright (c) 2019 Denis Zhidkikh
|
|
*
|
|
* 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.
|
|
*/
|
|
#endregion
|
|
using System;
|
|
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using System.Globalization;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Text.RegularExpressions;
|
|
|
|
namespace Tommy
|
|
{
|
|
#region TOML Nodes
|
|
|
|
public abstract class TomlNode : IEnumerable
|
|
{
|
|
public virtual bool HasValue { get; } = false;
|
|
public virtual bool IsArray { get; } = false;
|
|
public virtual bool IsTable { get; } = false;
|
|
public virtual bool IsString { get; } = false;
|
|
public virtual bool IsInteger { get; } = false;
|
|
public virtual bool IsFloat { get; } = false;
|
|
public virtual bool IsDateTime { get; } = false;
|
|
public virtual bool IsBoolean { get; } = false;
|
|
public virtual string Comment { get; set; }
|
|
|
|
public virtual TomlTable AsTable => this as TomlTable;
|
|
public virtual TomlString AsString => this as TomlString;
|
|
public virtual TomlInteger AsInteger => this as TomlInteger;
|
|
public virtual TomlFloat AsFloat => this as TomlFloat;
|
|
public virtual TomlBoolean AsBoolean => this as TomlBoolean;
|
|
public virtual TomlDateTime AsDateTime => this as TomlDateTime;
|
|
public virtual TomlArray AsArray => this as TomlArray;
|
|
|
|
public virtual int ChildrenCount => 0;
|
|
|
|
public virtual TomlNode this[string key] { get => null; set { } }
|
|
|
|
public virtual TomlNode this[int index] { get => null; set { } }
|
|
|
|
public virtual IEnumerable<TomlNode> Children { get { yield break; } }
|
|
|
|
public virtual IEnumerable<string> Keys { get { yield break; } }
|
|
|
|
public IEnumerator GetEnumerator() => Children.GetEnumerator();
|
|
|
|
public virtual bool TryGetNode(string key, out TomlNode node)
|
|
{
|
|
node = null;
|
|
return false;
|
|
}
|
|
|
|
public virtual bool HasKey(string key) => false;
|
|
|
|
public virtual bool HasItemAt(int index) => false;
|
|
|
|
public virtual void Add(string key, TomlNode node) { }
|
|
|
|
public virtual void Add(TomlNode node) { }
|
|
|
|
public virtual void Delete(TomlNode node) { }
|
|
|
|
public virtual void Delete(string key) { }
|
|
|
|
public virtual void Delete(int index) { }
|
|
|
|
public virtual void AddRange(IEnumerable<TomlNode> nodes)
|
|
{
|
|
foreach (var tomlNode in nodes) Add(tomlNode);
|
|
}
|
|
|
|
public virtual void ToTomlString(TextWriter tw, string name = null) { }
|
|
|
|
#region Native type to TOML cast
|
|
|
|
public static implicit operator TomlNode(string value) =>
|
|
new TomlString
|
|
{
|
|
Value = value
|
|
};
|
|
|
|
public static implicit operator TomlNode(bool value) =>
|
|
new TomlBoolean
|
|
{
|
|
Value = value
|
|
};
|
|
|
|
public static implicit operator TomlNode(long value) =>
|
|
new TomlInteger
|
|
{
|
|
Value = value
|
|
};
|
|
|
|
public static implicit operator TomlNode(float value) =>
|
|
new TomlFloat
|
|
{
|
|
Value = value
|
|
};
|
|
|
|
public static implicit operator TomlNode(double value) =>
|
|
new TomlFloat
|
|
{
|
|
Value = value
|
|
};
|
|
|
|
public static implicit operator TomlNode(DateTime value) =>
|
|
new TomlDateTime
|
|
{
|
|
Value = value
|
|
};
|
|
|
|
public static implicit operator TomlNode(TomlNode[] nodes)
|
|
{
|
|
var result = new TomlArray();
|
|
result.AddRange(nodes);
|
|
return result;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region TOML to native type cast
|
|
|
|
public static implicit operator string(TomlNode value) => value.ToString();
|
|
|
|
public static implicit operator int(TomlNode value) => (int)value.AsInteger.Value;
|
|
|
|
public static implicit operator long(TomlNode value) => value.AsInteger.Value;
|
|
|
|
public static implicit operator float(TomlNode value) => (float)value.AsFloat.Value;
|
|
|
|
public static implicit operator double(TomlNode value) => value.AsFloat.Value;
|
|
|
|
public static implicit operator bool(TomlNode value) => value.AsBoolean.Value;
|
|
|
|
public static implicit operator DateTime(TomlNode value) => value.AsDateTime.Value;
|
|
|
|
#endregion
|
|
}
|
|
|
|
public class TomlString : TomlNode
|
|
{
|
|
public override bool HasValue { get; } = true;
|
|
public override bool IsString { get; } = true;
|
|
public bool IsMultiline { get; set; }
|
|
public bool PreferLiteral { get; set; }
|
|
|
|
public string Value { get; set; }
|
|
|
|
public override string ToString() => Value;
|
|
|
|
public override void ToTomlString(TextWriter tw, string name = null)
|
|
{
|
|
if (Value.IndexOf(TomlSyntax.LITERAL_STRING_SYMBOL) != -1 && PreferLiteral) PreferLiteral = false;
|
|
|
|
var quotes = new string(PreferLiteral ? TomlSyntax.LITERAL_STRING_SYMBOL : TomlSyntax.BASIC_STRING_SYMBOL,
|
|
IsMultiline ? 3 : 1);
|
|
var result = PreferLiteral ? Value : Value.Escape(!IsMultiline);
|
|
tw.Write(quotes);
|
|
tw.Write(result);
|
|
tw.Write(quotes);
|
|
}
|
|
}
|
|
|
|
public class TomlInteger : TomlNode
|
|
{
|
|
public enum Base
|
|
{
|
|
Binary = 2,
|
|
Octal = 8,
|
|
Decimal = 10,
|
|
Hexadecimal = 16
|
|
}
|
|
|
|
public override bool IsInteger { get; } = true;
|
|
public override bool HasValue { get; } = true;
|
|
public Base IntegerBase { get; set; } = Base.Decimal;
|
|
|
|
public long Value { get; set; }
|
|
|
|
public override string ToString()
|
|
{
|
|
if (IntegerBase != Base.Decimal)
|
|
return $"0{TomlSyntax.BaseIdentifiers[(int)IntegerBase]}{Convert.ToString(Value, (int)IntegerBase)}";
|
|
return Value.ToString(CultureInfo.InvariantCulture);
|
|
}
|
|
|
|
public override void ToTomlString(TextWriter tw, string name = null) => tw.Write(ToString());
|
|
}
|
|
|
|
public class TomlFloat : TomlNode
|
|
{
|
|
public override bool IsFloat { get; } = true;
|
|
public override bool HasValue { get; } = true;
|
|
|
|
public double Value { get; set; }
|
|
|
|
public override string ToString()
|
|
{
|
|
if (double.IsNaN(Value)) return TomlSyntax.NAN_VALUE;
|
|
|
|
if (double.IsPositiveInfinity(Value)) return TomlSyntax.INF_VALUE;
|
|
|
|
if (double.IsNegativeInfinity(Value)) return TomlSyntax.NEG_INF_VALUE;
|
|
|
|
return Value.ToString("G", CultureInfo.InvariantCulture);
|
|
}
|
|
|
|
public override void ToTomlString(TextWriter tw, string name = null) => tw.Write(ToString());
|
|
}
|
|
|
|
public class TomlBoolean : TomlNode
|
|
{
|
|
public override bool IsBoolean { get; } = true;
|
|
public override bool HasValue { get; } = true;
|
|
|
|
public bool Value { get; set; }
|
|
|
|
public override string ToString() => Value ? TomlSyntax.TRUE_VALUE : TomlSyntax.FALSE_VALUE;
|
|
|
|
public override void ToTomlString(TextWriter tw, string name = null) => tw.Write(ToString());
|
|
}
|
|
|
|
public class TomlDateTime : TomlNode
|
|
{
|
|
public override bool IsDateTime { get; } = true;
|
|
public override bool HasValue { get; } = true;
|
|
public bool OnlyDate { get; set; }
|
|
public bool OnlyTime { get; set; }
|
|
public int SecondsPrecision { get; set; }
|
|
|
|
public DateTime Value { get; set; }
|
|
|
|
public override string ToString()
|
|
{
|
|
if (OnlyDate) return Value.ToString(TomlSyntax.LocalDateFormat);
|
|
if (OnlyTime) return Value.ToString(TomlSyntax.RFC3339LocalTimeFormats[SecondsPrecision]);
|
|
if (Value.Kind == DateTimeKind.Local)
|
|
return Value.ToString(TomlSyntax.RFC3339LocalDateTimeFormats[SecondsPrecision]);
|
|
return Value.ToString(TomlSyntax.RFC3339Formats[SecondsPrecision]);
|
|
}
|
|
|
|
public override void ToTomlString(TextWriter tw, string name = null) => tw.Write(ToString());
|
|
}
|
|
|
|
public class TomlArray : TomlNode
|
|
{
|
|
List<TomlNode> values;
|
|
|
|
public override bool HasValue { get; } = true;
|
|
public override bool IsArray { get; } = true;
|
|
public bool IsTableArray { get; set; }
|
|
public List<TomlNode> RawArray => values ?? (values = new List<TomlNode>());
|
|
|
|
public override TomlNode this[int index] {
|
|
get {
|
|
if (index < RawArray.Count) return RawArray[index];
|
|
var lazy = new TomlLazy(this);
|
|
this[index] = lazy;
|
|
return lazy;
|
|
}
|
|
set {
|
|
if (index == RawArray.Count)
|
|
RawArray.Add(value);
|
|
else
|
|
RawArray[index] = value;
|
|
}
|
|
}
|
|
|
|
public override int ChildrenCount => RawArray.Count;
|
|
|
|
public override IEnumerable<TomlNode> Children => RawArray.AsEnumerable();
|
|
|
|
public override void Add(TomlNode node) => RawArray.Add(node);
|
|
|
|
public override void AddRange(IEnumerable<TomlNode> nodes) => RawArray.AddRange(nodes);
|
|
|
|
public override void Delete(TomlNode node) => RawArray.Remove(node);
|
|
|
|
public override void Delete(int index) => RawArray.RemoveAt(index);
|
|
|
|
public override string ToString()
|
|
{
|
|
var sb = new StringBuilder();
|
|
sb.Append(TomlSyntax.ARRAY_START_SYMBOL);
|
|
|
|
if (ChildrenCount != 0)
|
|
{
|
|
sb.Append(' ');
|
|
foreach (var tomlNode in RawArray)
|
|
sb.Append(tomlNode.ToString()).Append(TomlSyntax.ITEM_SEPARATOR).Append(' ');
|
|
}
|
|
|
|
sb.Append(TomlSyntax.ARRAY_END_SYMBOL);
|
|
return sb.ToString();
|
|
}
|
|
|
|
public override void ToTomlString(TextWriter tw, string name = null)
|
|
{
|
|
// If it's a normal array, write it as usual
|
|
if (!IsTableArray)
|
|
{
|
|
tw.Write(ToString());
|
|
return;
|
|
}
|
|
|
|
tw.WriteLine();
|
|
|
|
Comment?.AsComment(tw);
|
|
tw.Write(TomlSyntax.ARRAY_START_SYMBOL);
|
|
tw.Write(TomlSyntax.ARRAY_START_SYMBOL);
|
|
tw.Write(name);
|
|
tw.Write(TomlSyntax.ARRAY_END_SYMBOL);
|
|
tw.Write(TomlSyntax.ARRAY_END_SYMBOL);
|
|
tw.WriteLine();
|
|
|
|
var first = true;
|
|
|
|
foreach (var tomlNode in RawArray)
|
|
{
|
|
if (!(tomlNode is TomlTable tbl))
|
|
throw new TomlFormatException("The array is marked as array table but contains non-table nodes!");
|
|
|
|
// Ensure it's parsed as a section
|
|
tbl.IsInline = false;
|
|
|
|
if (!first)
|
|
{
|
|
tw.WriteLine();
|
|
|
|
Comment?.AsComment(tw);
|
|
tw.Write(TomlSyntax.ARRAY_START_SYMBOL);
|
|
tw.Write(TomlSyntax.ARRAY_START_SYMBOL);
|
|
tw.Write(name);
|
|
tw.Write(TomlSyntax.ARRAY_END_SYMBOL);
|
|
tw.Write(TomlSyntax.ARRAY_END_SYMBOL);
|
|
tw.WriteLine();
|
|
}
|
|
|
|
first = false;
|
|
|
|
// Don't pass section name because we already specified it
|
|
tbl.ToTomlString(tw);
|
|
|
|
tw.WriteLine();
|
|
}
|
|
}
|
|
}
|
|
|
|
public class TomlTable : TomlNode
|
|
{
|
|
Dictionary<string, TomlNode> children;
|
|
|
|
public override bool HasValue { get; } = false;
|
|
public override bool IsTable { get; } = true;
|
|
public bool IsInline { get; set; }
|
|
public Dictionary<string, TomlNode> RawTable => children ?? (children = new Dictionary<string, TomlNode>());
|
|
|
|
public override TomlNode this[string key] {
|
|
get {
|
|
if (RawTable.TryGetValue(key, out var result)) return result;
|
|
|
|
var lazy = new TomlLazy(this);
|
|
RawTable[key] = lazy;
|
|
return lazy;
|
|
}
|
|
set => RawTable[key] = value;
|
|
}
|
|
|
|
public override int ChildrenCount => RawTable.Count;
|
|
|
|
public override IEnumerable<TomlNode> Children => RawTable.Select(kv => kv.Value);
|
|
|
|
public override IEnumerable<string> Keys => RawTable.Select(kv => kv.Key);
|
|
|
|
public override bool HasKey(string key) => RawTable.ContainsKey(key);
|
|
|
|
public override void Add(string key, TomlNode node) => RawTable.Add(key, node);
|
|
|
|
public override bool TryGetNode(string key, out TomlNode node) => RawTable.TryGetValue(key, out node);
|
|
|
|
public override void Delete(TomlNode node) => RawTable.Remove(RawTable.First(kv => kv.Value == node).Key);
|
|
|
|
public override void Delete(string key) => RawTable.Remove(key);
|
|
|
|
public override string ToString()
|
|
{
|
|
var sb = new StringBuilder();
|
|
sb.Append(TomlSyntax.INLINE_TABLE_START_SYMBOL);
|
|
|
|
if (ChildrenCount != 0)
|
|
{
|
|
sb.Append(' ');
|
|
foreach (var child in RawTable)
|
|
sb.Append(child.Key)
|
|
.Append(' ')
|
|
.Append(TomlSyntax.KEY_VALUE_SEPARATOR)
|
|
.Append(' ')
|
|
.Append(child.Value.ToString())
|
|
.Append(TomlSyntax.ITEM_SEPARATOR)
|
|
.Append(' ');
|
|
}
|
|
|
|
sb.Append(TomlSyntax.INLINE_TABLE_END_SYMBOL);
|
|
return sb.ToString();
|
|
}
|
|
|
|
public override void ToTomlString(TextWriter tw, string name = null)
|
|
{
|
|
// The table is inline table
|
|
if (IsInline && name != null)
|
|
{
|
|
tw.Write(ToString());
|
|
return;
|
|
}
|
|
|
|
Comment?.AsComment(tw);
|
|
|
|
if (name != null)
|
|
{
|
|
tw.Write(TomlSyntax.ARRAY_START_SYMBOL);
|
|
tw.Write(name);
|
|
tw.Write(TomlSyntax.ARRAY_END_SYMBOL);
|
|
tw.WriteLine();
|
|
}
|
|
else if (Comment != null) // Add some spacing between the first node and the comment
|
|
tw.WriteLine();
|
|
|
|
var namePrefix = name == null ? "" : $"{name}.";
|
|
var first = true;
|
|
|
|
var sectionableItems = new Dictionary<string, TomlNode>();
|
|
|
|
foreach (var child in RawTable)
|
|
{
|
|
// If value should be parsed as section, separate if from the bunch
|
|
if (child.Value is TomlArray arr && arr.IsTableArray || child.Value is TomlTable tbl && !tbl.IsInline)
|
|
{
|
|
sectionableItems.Add(child.Key, child.Value);
|
|
continue;
|
|
}
|
|
|
|
if (!first) tw.WriteLine();
|
|
first = false;
|
|
|
|
var key = child.Key.AsKey();
|
|
child.Value.Comment?.AsComment(tw);
|
|
tw.Write(key);
|
|
tw.Write(' ');
|
|
tw.Write(TomlSyntax.KEY_VALUE_SEPARATOR);
|
|
tw.Write(' ');
|
|
|
|
child.Value.ToTomlString(tw, $"{namePrefix}{key}");
|
|
}
|
|
|
|
if (sectionableItems.Count == 0) return;
|
|
|
|
tw.WriteLine();
|
|
tw.WriteLine();
|
|
first = true;
|
|
foreach (var child in sectionableItems)
|
|
{
|
|
if (!first) tw.WriteLine();
|
|
first = false;
|
|
|
|
child.Value.ToTomlString(tw, $"{namePrefix}{child.Key}");
|
|
}
|
|
}
|
|
}
|
|
|
|
class TomlLazy : TomlNode
|
|
{
|
|
readonly TomlNode parent;
|
|
TomlNode replacement;
|
|
|
|
public TomlLazy(TomlNode parent) => this.parent = parent;
|
|
|
|
public override TomlNode this[int index] {
|
|
get => Set<TomlArray>()[index];
|
|
set => Set<TomlArray>()[index] = value;
|
|
}
|
|
|
|
public override TomlNode this[string key] {
|
|
get => Set<TomlTable>()[key];
|
|
set => Set<TomlTable>()[key] = value;
|
|
}
|
|
|
|
public override void Add(TomlNode node) => Set<TomlArray>().Add(node);
|
|
|
|
public override void Add(string key, TomlNode node) => Set<TomlTable>().Add(key, node);
|
|
|
|
public override void AddRange(IEnumerable<TomlNode> nodes) => Set<TomlArray>().AddRange(nodes);
|
|
|
|
TomlNode Set<T>() where T : TomlNode, new()
|
|
{
|
|
if (replacement != null) return replacement;
|
|
|
|
var newNode = new T
|
|
{
|
|
Comment = Comment
|
|
};
|
|
|
|
if (parent.IsTable)
|
|
{
|
|
var key = parent.Keys.FirstOrDefault(s => parent.TryGetNode(s, out var node) && node.Equals(this));
|
|
if (key == null) return default(T);
|
|
|
|
parent[key] = newNode;
|
|
}
|
|
else if (parent.IsArray)
|
|
{
|
|
var index = 0;
|
|
foreach (var child in parent.Children)
|
|
{
|
|
if (child == this) break;
|
|
index++;
|
|
}
|
|
|
|
if (index == parent.ChildrenCount) return default(T);
|
|
|
|
parent[index] = newNode;
|
|
}
|
|
else
|
|
return default(T);
|
|
|
|
replacement = newNode;
|
|
return newNode;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
public static class TOML
|
|
{
|
|
public enum ParseState
|
|
{
|
|
None,
|
|
KeyValuePair,
|
|
SkipToNextLine,
|
|
Table
|
|
}
|
|
|
|
public static bool ForceASCII { get; set; } = false;
|
|
|
|
public static TomlTable Parse(TextReader reader)
|
|
{
|
|
var rootNode = new TomlTable();
|
|
var currentNode = rootNode;
|
|
var state = ParseState.None;
|
|
var keyParts = new List<string>();
|
|
var arrayTable = false;
|
|
var latestComment = new StringBuilder();
|
|
var firstComment = true;
|
|
|
|
int currentChar;
|
|
while ((currentChar = reader.Peek()) >= 0)
|
|
{
|
|
var c = (char)currentChar;
|
|
|
|
if (state == ParseState.None)
|
|
{
|
|
// Skip white space
|
|
if (TomlSyntax.IsWhiteSpace(c)) goto consume_character;
|
|
|
|
if (TomlSyntax.IsNewLine(c))
|
|
{
|
|
// Check if there are any comments and so far no items being declared
|
|
if (latestComment.Length != 0 && firstComment)
|
|
{
|
|
rootNode.Comment = latestComment.ToString().TrimEnd();
|
|
latestComment.Length = 0;
|
|
firstComment = false;
|
|
}
|
|
|
|
goto consume_character;
|
|
}
|
|
|
|
// Start of a comment; ignore until newline
|
|
if (c == TomlSyntax.COMMENT_SYMBOL)
|
|
{
|
|
// Consume the comment symbol and buffer the whole comment line
|
|
reader.Read();
|
|
latestComment.AppendLine(reader.ReadLine()?.Trim());
|
|
continue;
|
|
}
|
|
|
|
// Encountered a non-comment value. The comment must belong to it (ignore possible newlines)!
|
|
firstComment = false;
|
|
|
|
if (c == TomlSyntax.TABLE_START_SYMBOL)
|
|
{
|
|
state = ParseState.Table;
|
|
goto consume_character;
|
|
}
|
|
|
|
if (TomlSyntax.IsBareKey(c) || TomlSyntax.IsQuoted(c))
|
|
state = ParseState.KeyValuePair;
|
|
else
|
|
throw new TomlParseException($"Unexpected character \"{c}\"", state);
|
|
}
|
|
|
|
if (state == ParseState.KeyValuePair)
|
|
{
|
|
var keyValuePair = ReadKeyValuePair(reader, keyParts);
|
|
keyValuePair.Comment = latestComment.ToString().TrimEnd();
|
|
InsertNode(keyValuePair, currentNode, keyParts);
|
|
latestComment.Length = 0;
|
|
keyParts.Clear();
|
|
state = ParseState.SkipToNextLine;
|
|
continue;
|
|
}
|
|
|
|
if (state == ParseState.Table)
|
|
{
|
|
if (keyParts.Count == 0)
|
|
{
|
|
// We have array table
|
|
if (c == TomlSyntax.TABLE_START_SYMBOL)
|
|
{
|
|
// Consume the character
|
|
reader.Read();
|
|
arrayTable = true;
|
|
}
|
|
|
|
ReadKeyName(reader, ref keyParts, TomlSyntax.TABLE_END_SYMBOL, true);
|
|
if (keyParts.Count == 0) throw new TomlParseException("Table name is emtpy.", state);
|
|
|
|
continue;
|
|
}
|
|
|
|
if (c == TomlSyntax.TABLE_END_SYMBOL)
|
|
{
|
|
if (arrayTable)
|
|
{
|
|
if (reader.Peek() < 0 || (char)reader.Peek() != TomlSyntax.TABLE_END_SYMBOL)
|
|
throw new
|
|
TomlParseException($"Array table {".".Join(keyParts)} has only one closing bracket.",
|
|
state);
|
|
// Consume the extra closing table symbol
|
|
reader.Read();
|
|
}
|
|
|
|
currentNode = CreateTable(rootNode, keyParts, arrayTable);
|
|
currentNode.IsInline = false;
|
|
currentNode.Comment = latestComment.ToString().TrimEnd();
|
|
keyParts.Clear();
|
|
arrayTable = false;
|
|
latestComment.Length = 0;
|
|
state = ParseState.SkipToNextLine;
|
|
goto consume_character;
|
|
}
|
|
|
|
if (keyParts.Count != 0) throw new TomlParseException($"Unexpected character \"{c}\"", state);
|
|
}
|
|
|
|
if (state == ParseState.SkipToNextLine)
|
|
{
|
|
if (TomlSyntax.IsWhiteSpace(c) || c == TomlSyntax.NEWLINE_CARRIAGE_RETURN_CHARACTER)
|
|
goto consume_character;
|
|
|
|
if (c == TomlSyntax.COMMENT_SYMBOL || c == TomlSyntax.NEWLINE_CHARACTER)
|
|
{
|
|
state = ParseState.None;
|
|
if (c == TomlSyntax.COMMENT_SYMBOL)
|
|
{
|
|
reader.ReadLine();
|
|
continue;
|
|
}
|
|
|
|
goto consume_character;
|
|
}
|
|
|
|
throw new TomlParseException($"Unexpected character \"{c}\" at the end of the line.", state);
|
|
}
|
|
|
|
consume_character:
|
|
reader.Read();
|
|
}
|
|
|
|
if (state != ParseState.None && state != ParseState.SkipToNextLine)
|
|
throw new TomlParseException("Unexpected end of file!", state);
|
|
|
|
return rootNode;
|
|
}
|
|
|
|
#region Key-Value pair parsing
|
|
|
|
/**
|
|
* Reads a single key-value pair.
|
|
* Assumes the cursor is at the first character that belong to the pair (including possible whitespace).
|
|
* Consumes all characters that belong to the key and the value (ignoring possible trailing whitespace at the end).
|
|
*
|
|
* Example:
|
|
* foo = "bar" ==> foo = "bar"
|
|
* ^ ^
|
|
*/
|
|
static TomlNode ReadKeyValuePair(TextReader reader, List<string> keyParts)
|
|
{
|
|
int cur;
|
|
while ((cur = reader.Peek()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
|
|
if (TomlSyntax.IsQuoted(c) || TomlSyntax.IsBareKey(c))
|
|
{
|
|
if (keyParts.Count != 0)
|
|
throw new TomlParseException("Encountered extra characters in key definition!",
|
|
ParseState.KeyValuePair);
|
|
|
|
ReadKeyName(reader, ref keyParts, TomlSyntax.KEY_VALUE_SEPARATOR);
|
|
continue;
|
|
}
|
|
|
|
if (TomlSyntax.IsWhiteSpace(c))
|
|
{
|
|
reader.Read();
|
|
continue;
|
|
}
|
|
|
|
if (c == TomlSyntax.KEY_VALUE_SEPARATOR)
|
|
{
|
|
reader.Read();
|
|
return ReadValue(reader);
|
|
}
|
|
|
|
throw new TomlParseException($"Unexpected character \"{c}\" in key name.", ParseState.KeyValuePair);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Reads a single value.
|
|
* Assumes the cursor is at the first character that belongs to the value (including possible starting whitespace).
|
|
* Consumes all characters belonging to the value (ignoring possible trailing whitespace at the end).
|
|
*
|
|
* Example:
|
|
* "test" ==> "test"
|
|
* ^ ^
|
|
*/
|
|
static TomlNode ReadValue(TextReader reader, bool skipNewlines = false)
|
|
{
|
|
int cur;
|
|
while ((cur = reader.Peek()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
|
|
if (TomlSyntax.IsWhiteSpace(c))
|
|
{
|
|
reader.Read();
|
|
continue;
|
|
}
|
|
|
|
if (c == TomlSyntax.COMMENT_SYMBOL)
|
|
throw new TomlParseException("No value found!", ParseState.KeyValuePair);
|
|
|
|
if (TomlSyntax.IsNewLine(c))
|
|
{
|
|
if (skipNewlines)
|
|
{
|
|
reader.Read();
|
|
continue;
|
|
}
|
|
|
|
throw new TomlParseException("Encountered a newline when expecting a value!",
|
|
ParseState.KeyValuePair);
|
|
}
|
|
|
|
if (TomlSyntax.IsQuoted(c))
|
|
{
|
|
var isMultiline = IsTripleQuote(c, reader, out var excess);
|
|
var value = isMultiline
|
|
? ReadQuotedValueMultiLine(c, reader)
|
|
: ReadQuotedValueSingleLine(c, reader, excess);
|
|
|
|
return new TomlString
|
|
{
|
|
Value = value,
|
|
IsMultiline = isMultiline,
|
|
PreferLiteral = c == TomlSyntax.LITERAL_STRING_SYMBOL
|
|
};
|
|
}
|
|
|
|
if (c == TomlSyntax.INLINE_TABLE_START_SYMBOL) return ReadInlineTable(reader);
|
|
|
|
if (c == TomlSyntax.ARRAY_START_SYMBOL) return ReadArray(reader);
|
|
|
|
return ReadTomlValue(reader);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Reads a single key name.
|
|
* Assumes the cursor is at the first character belonging to the key (with possible trailing whitespace if `skipWhitespace = true`).
|
|
* Consumes all the characters until the `until` character is met (but does not consume the character itself).
|
|
*
|
|
* Example 1:
|
|
* foo.bar ==> foo.bar (`skipWhitespace = false`, `until = ' '`)
|
|
* ^ ^
|
|
*
|
|
* Example 2:
|
|
* [ foo . bar ] ==> [ foo . bar ] (`skipWhitespace = true`, `until = ']'`)
|
|
* ^ ^
|
|
*/
|
|
static void ReadKeyName(TextReader reader, ref List<string> parts, char until, bool skipWhitespace = false)
|
|
{
|
|
var buffer = new StringBuilder();
|
|
var quoted = false;
|
|
var prevWasSpace = false;
|
|
int cur;
|
|
while ((cur = reader.Peek()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
|
|
// Reached the final character
|
|
if (c == until) break;
|
|
|
|
if (TomlSyntax.IsWhiteSpace(c))
|
|
if (skipWhitespace)
|
|
{
|
|
prevWasSpace = true;
|
|
goto consume_character;
|
|
}
|
|
else
|
|
break;
|
|
|
|
if (buffer.Length == 0) prevWasSpace = false;
|
|
|
|
if (c == TomlSyntax.SUBKEY_SEPARATOR)
|
|
{
|
|
if (buffer.Length == 0)
|
|
throw new TomlParseException($"Found an extra subkey separator in {".".Join(parts)}...",
|
|
ParseState.KeyValuePair);
|
|
|
|
parts.Add(buffer.ToString());
|
|
buffer.Length = 0;
|
|
quoted = false;
|
|
prevWasSpace = false;
|
|
goto consume_character;
|
|
}
|
|
|
|
if (prevWasSpace) throw new TomlParseException("Invalid spacing in key name", ParseState.KeyValuePair);
|
|
|
|
if (TomlSyntax.IsQuoted(c))
|
|
{
|
|
if (quoted)
|
|
throw new TomlParseException("Expected a subkey separator but got extra data instead!",
|
|
ParseState.KeyValuePair);
|
|
if (buffer.Length != 0)
|
|
throw new TomlParseException("Encountered a quote in the middle of subkey name!",
|
|
ParseState.KeyValuePair);
|
|
|
|
// Consume the quote character and read the key name
|
|
buffer.Append(ReadQuotedValueSingleLine((char)reader.Read(), reader));
|
|
quoted = true;
|
|
continue;
|
|
}
|
|
|
|
if (TomlSyntax.IsBareKey(c))
|
|
{
|
|
buffer.Append(c);
|
|
goto consume_character;
|
|
}
|
|
|
|
// If we see an invalid symbol, let the next parser handle it
|
|
break;
|
|
|
|
consume_character:
|
|
reader.Read();
|
|
}
|
|
|
|
if (buffer.Length == 0)
|
|
throw new TomlParseException($"Found an extra subkey separator in {".".Join(parts)}...",
|
|
ParseState.KeyValuePair);
|
|
|
|
parts.Add(buffer.ToString());
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Non-string value parsing
|
|
|
|
/**
|
|
* Reads the whole raw value until the first non-value character is encountered.
|
|
* Assumes the cursor start position at the first value character and consumes all characters that may be related to the value.
|
|
* Example:
|
|
*
|
|
* 1_0_0_0 ==> 1_0_0_0
|
|
* ^ ^
|
|
*/
|
|
static string ReadRawValue(TextReader reader)
|
|
{
|
|
var result = new StringBuilder();
|
|
|
|
int cur;
|
|
while ((cur = reader.Peek()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
|
|
if (c == TomlSyntax.COMMENT_SYMBOL || TomlSyntax.IsNewLine(c) || TomlSyntax.IsValueSeparator(c)) break;
|
|
|
|
result.Append(c);
|
|
|
|
reader.Read();
|
|
}
|
|
|
|
// Replace trim with manual space counting?
|
|
return result.ToString().Trim();
|
|
}
|
|
|
|
/**
|
|
* Reads and parses a non-string, non-composite TOML value.
|
|
* Assumes the cursor at the first character that is related to the value (with possible spaces).
|
|
* Consumes all the characters that are related to the value.
|
|
*
|
|
* Example
|
|
* 1_0_0_0 # This is a comment <newline> ==> 1_0_0_0 # This is a comment
|
|
* ^ ^
|
|
*/
|
|
static TomlNode ReadTomlValue(TextReader reader)
|
|
{
|
|
var value = ReadRawValue(reader);
|
|
|
|
if (TomlSyntax.IsBoolean(value)) return bool.Parse(value);
|
|
|
|
if (TomlSyntax.IsNaN(value)) return double.NaN;
|
|
|
|
if (TomlSyntax.IsPosInf(value)) return double.PositiveInfinity;
|
|
|
|
if (TomlSyntax.IsNegInf(value)) return double.NegativeInfinity;
|
|
|
|
if (TomlSyntax.IsInteger(value))
|
|
return long.Parse(value.RemoveAll(TomlSyntax.INT_NUMBER_SEPARATOR), CultureInfo.InvariantCulture);
|
|
|
|
if (TomlSyntax.IsFloat(value))
|
|
return double.Parse(value.RemoveAll(TomlSyntax.INT_NUMBER_SEPARATOR), CultureInfo.InvariantCulture);
|
|
|
|
if (TomlSyntax.IsIntegerWithBase(value, out var numberBase))
|
|
return new TomlInteger
|
|
{
|
|
Value = Convert.ToInt64(value.Substring(2).RemoveAll(TomlSyntax.INT_NUMBER_SEPARATOR), numberBase),
|
|
IntegerBase = (TomlInteger.Base)numberBase
|
|
};
|
|
|
|
value = value.Replace("T", " ");
|
|
if (StringUtils.TryParseDateTime(value,
|
|
TomlSyntax.RFC3339LocalDateTimeFormats,
|
|
DateTimeStyles.AssumeLocal,
|
|
out var dateTimeResult,
|
|
out var precision))
|
|
return new TomlDateTime
|
|
{
|
|
Value = dateTimeResult,
|
|
SecondsPrecision = precision
|
|
};
|
|
|
|
if (StringUtils.TryParseDateTime(value,
|
|
TomlSyntax.RFC3339Formats,
|
|
DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeUniversal,
|
|
out dateTimeResult,
|
|
out precision))
|
|
return new TomlDateTime
|
|
{
|
|
Value = dateTimeResult,
|
|
SecondsPrecision = precision
|
|
};
|
|
|
|
|
|
if (DateTime.TryParseExact(value,
|
|
TomlSyntax.LocalDateFormat,
|
|
CultureInfo.InvariantCulture,
|
|
DateTimeStyles.AssumeLocal,
|
|
out dateTimeResult))
|
|
return new TomlDateTime
|
|
{
|
|
Value = dateTimeResult,
|
|
OnlyDate = true
|
|
};
|
|
|
|
if (StringUtils.TryParseDateTime(value,
|
|
TomlSyntax.RFC3339LocalTimeFormats,
|
|
DateTimeStyles.AssumeLocal,
|
|
out dateTimeResult,
|
|
out precision))
|
|
return new TomlDateTime
|
|
{
|
|
Value = dateTimeResult,
|
|
OnlyTime = true,
|
|
SecondsPrecision = precision
|
|
};
|
|
|
|
throw new TomlParseException($"Value \"{value}\" is not a valid TOML 0.5.0 value!",
|
|
ParseState.KeyValuePair);
|
|
}
|
|
|
|
/**
|
|
* Reads an array value.
|
|
* Assumes the cursor is at the start of the array definition. Reads all character until the array closing bracket.
|
|
*
|
|
* Example:
|
|
* [1, 2, 3] ==> [1, 2, 3]
|
|
* ^ ^
|
|
*/
|
|
static TomlArray ReadArray(TextReader reader)
|
|
{
|
|
// Consume the start of array character
|
|
reader.Read();
|
|
|
|
var result = new TomlArray();
|
|
|
|
TomlNode currentValue = null;
|
|
|
|
int cur;
|
|
while ((cur = reader.Peek()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
|
|
if (c == TomlSyntax.ARRAY_END_SYMBOL)
|
|
{
|
|
reader.Read();
|
|
break;
|
|
}
|
|
|
|
if (c == TomlSyntax.COMMENT_SYMBOL)
|
|
{
|
|
reader.ReadLine();
|
|
continue;
|
|
}
|
|
|
|
if (TomlSyntax.IsWhiteSpace(c) || TomlSyntax.IsNewLine(c)) goto consume_character;
|
|
|
|
if (c == TomlSyntax.ITEM_SEPARATOR)
|
|
{
|
|
if (currentValue == null)
|
|
throw new TomlParseException("Encountered multiple value separators in an array!",
|
|
ParseState.KeyValuePair);
|
|
|
|
result.Add(currentValue);
|
|
currentValue = null;
|
|
goto consume_character;
|
|
}
|
|
|
|
currentValue = ReadValue(reader, true);
|
|
|
|
if (result.ChildrenCount != 0 && result[0].GetType() != currentValue.GetType())
|
|
throw new TomlParseException("Arrays cannot have mixed types!", ParseState.KeyValuePair);
|
|
|
|
continue;
|
|
|
|
consume_character:
|
|
reader.Read();
|
|
}
|
|
|
|
if (currentValue != null) result.Add(currentValue);
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Reads an inline table.
|
|
* Assumes the cursor is at the start of the table definition. Reads all character until the table closing bracket.
|
|
*
|
|
* Example:
|
|
* { test = "foo", value = 1 } ==> { test = "foo", value = 1 }
|
|
* ^ ^
|
|
*/
|
|
static TomlNode ReadInlineTable(TextReader reader)
|
|
{
|
|
reader.Read();
|
|
|
|
var result = new TomlTable
|
|
{
|
|
IsInline = true
|
|
};
|
|
|
|
TomlNode currentValue = null;
|
|
|
|
var keyParts = new List<string>();
|
|
|
|
int cur;
|
|
while ((cur = reader.Peek()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
|
|
if (c == TomlSyntax.INLINE_TABLE_END_SYMBOL)
|
|
{
|
|
reader.Read();
|
|
break;
|
|
}
|
|
|
|
if (c == TomlSyntax.COMMENT_SYMBOL)
|
|
throw new TomlParseException("Incomplete inline table definition!", ParseState.Table);
|
|
|
|
if (TomlSyntax.IsNewLine(c))
|
|
throw new TomlParseException("Inline tables are only allowed to be on single line",
|
|
ParseState.Table);
|
|
|
|
if (TomlSyntax.IsWhiteSpace(c)) goto consume_character;
|
|
|
|
if (c == TomlSyntax.ITEM_SEPARATOR)
|
|
{
|
|
if (currentValue == null)
|
|
throw new TomlParseException("Encountered multiple value separators in inline table!",
|
|
ParseState.Table);
|
|
|
|
InsertNode(currentValue, result, keyParts);
|
|
keyParts.Clear();
|
|
currentValue = null;
|
|
goto consume_character;
|
|
}
|
|
|
|
currentValue = ReadKeyValuePair(reader, keyParts);
|
|
continue;
|
|
|
|
consume_character:
|
|
reader.Read();
|
|
}
|
|
|
|
if (currentValue != null) InsertNode(currentValue, result, keyParts);
|
|
|
|
return result;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region String parsing
|
|
|
|
/**
|
|
* Checks if the string value a multiline string (i.e. a triple quoted string).
|
|
* Assumes the cursor is at the first quote character. Consumes the least amount of characters needed to determine if the string is multiline.
|
|
*
|
|
* If the result is false, returns the consumed character through the `excess` variable.
|
|
*
|
|
* Example 1:
|
|
* """test""" ==> """test"""
|
|
* ^ ^
|
|
*
|
|
* Example 2:
|
|
* "test" ==> "test" (doesn't return the first quote)
|
|
* ^ ^
|
|
*
|
|
* Example 3:
|
|
* "" ==> "" (returns the extra `"` through the `excess` variable)
|
|
* ^ ^
|
|
*/
|
|
static bool IsTripleQuote(char quote, TextReader reader, out char excess)
|
|
{
|
|
// Copypasta, but it's faster...
|
|
|
|
int cur;
|
|
// Consume the first quote
|
|
reader.Read();
|
|
|
|
if ((cur = reader.Peek()) < 0)
|
|
throw new TomlParseException("Unexpected end of file!", ParseState.KeyValuePair);
|
|
|
|
if ((char)cur != quote)
|
|
{
|
|
excess = '\0';
|
|
return false;
|
|
}
|
|
|
|
// Consume the second quote
|
|
excess = (char)reader.Read();
|
|
|
|
if ((cur = reader.Peek()) < 0 || (char)cur != quote) return false;
|
|
|
|
// Consume the final quote
|
|
reader.Read();
|
|
|
|
excess = '\0';
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* A convenience method to process a single character within a quote.
|
|
*/
|
|
static bool ProcessQuotedValueCharacter(char quote,
|
|
bool isNonLiteral,
|
|
char c,
|
|
int next,
|
|
StringBuilder sb,
|
|
ref bool escaped)
|
|
{
|
|
if (TomlSyntax.ShouldBeEscaped(c))
|
|
throw new TomlParseException($"The character U+{(int)c:X8} must be escaped in a string!",
|
|
ParseState.KeyValuePair);
|
|
|
|
if (escaped)
|
|
{
|
|
sb.Append(c);
|
|
escaped = false;
|
|
return false;
|
|
}
|
|
|
|
if (c == quote) return true;
|
|
|
|
if (isNonLiteral && c == TomlSyntax.ESCAPE_SYMBOL)
|
|
if (next >= 0 && (char)next == quote)
|
|
escaped = true;
|
|
|
|
if (c == TomlSyntax.NEWLINE_CHARACTER)
|
|
throw new TomlParseException("Encountered newline in single line string!", ParseState.KeyValuePair);
|
|
|
|
sb.Append(c);
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Reads a single-line string.
|
|
* Assumes the cursor is at the first character that belongs to the string.
|
|
* Consumes all characters that belong to the string (including the closing quote).
|
|
*
|
|
* Example:
|
|
* "test" ==> "test"
|
|
* ^ ^
|
|
*/
|
|
static string ReadQuotedValueSingleLine(char quote, TextReader reader, char initialData = '\0')
|
|
{
|
|
var isNonLiteral = quote == TomlSyntax.BASIC_STRING_SYMBOL;
|
|
var sb = new StringBuilder();
|
|
|
|
var escaped = false;
|
|
|
|
if (initialData != '\0' &&
|
|
ProcessQuotedValueCharacter(quote, isNonLiteral, initialData, reader.Peek(), sb, ref escaped))
|
|
return isNonLiteral ? sb.ToString().Unescape() : sb.ToString();
|
|
|
|
int cur;
|
|
while ((cur = reader.Read()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
if (ProcessQuotedValueCharacter(quote, isNonLiteral, c, reader.Peek(), sb, ref escaped)) break;
|
|
}
|
|
|
|
return isNonLiteral ? sb.ToString().Unescape() : sb.ToString();
|
|
}
|
|
|
|
/**
|
|
* Reads a multiline string.
|
|
* Assumes the cursor is at the first character that belongs to the string.
|
|
* Consumes all characters that belong to the string and the three closing quotes.
|
|
*
|
|
* Example:
|
|
* """test""" ==> """test"""
|
|
* ^ ^
|
|
*/
|
|
static string ReadQuotedValueMultiLine(char quote, TextReader reader)
|
|
{
|
|
var isBasic = quote == TomlSyntax.BASIC_STRING_SYMBOL;
|
|
var sb = new StringBuilder();
|
|
|
|
var escaped = false;
|
|
var skipWhitespace = false;
|
|
var quotesEncountered = 0;
|
|
var first = true;
|
|
|
|
int cur;
|
|
while ((cur = reader.Read()) >= 0)
|
|
{
|
|
var c = (char)cur;
|
|
|
|
if (TomlSyntax.ShouldBeEscaped(c))
|
|
throw new Exception($"The character U+{(int)c:X8} must be escaped!");
|
|
|
|
// Trim the first newline
|
|
if (first && TomlSyntax.IsNewLine(c))
|
|
{
|
|
if (c != TomlSyntax.NEWLINE_CARRIAGE_RETURN_CHARACTER) first = false;
|
|
continue;
|
|
}
|
|
|
|
first = false;
|
|
|
|
//TODO: Reuse ProcessQuotedValueCharacter
|
|
|
|
// Skip the current character if it is going to be escaped later
|
|
if (escaped)
|
|
{
|
|
sb.Append(c);
|
|
escaped = false;
|
|
continue;
|
|
}
|
|
|
|
// If we are currently skipping empty spaces, skip
|
|
if (skipWhitespace)
|
|
{
|
|
if (TomlSyntax.IsEmptySpace(c)) continue;
|
|
skipWhitespace = false;
|
|
}
|
|
|
|
// If we encounter an escape sequence...
|
|
if (isBasic && c == TomlSyntax.ESCAPE_SYMBOL)
|
|
{
|
|
var next = reader.Peek();
|
|
if (next >= 0)
|
|
{
|
|
// ...and the next char is empty space, we must skip all whitespaces
|
|
if (TomlSyntax.IsEmptySpace((char)next))
|
|
{
|
|
skipWhitespace = true;
|
|
continue;
|
|
}
|
|
|
|
// ...and we have \", skip the character
|
|
if ((char)next == quote) escaped = true;
|
|
}
|
|
}
|
|
|
|
// Count the consecutive quotes
|
|
if (c == quote)
|
|
quotesEncountered++;
|
|
else
|
|
quotesEncountered = 0;
|
|
|
|
// If the are three quotes, count them as closing quotes
|
|
if (quotesEncountered == 3) break;
|
|
|
|
sb.Append(c);
|
|
}
|
|
|
|
// Remove last two quotes (third one wasn't included by default
|
|
sb.Length -= 2;
|
|
|
|
return isBasic ? sb.ToString().Unescape() : sb.ToString();
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Node creation
|
|
|
|
static void InsertNode(TomlNode node, TomlNode root, List<string> path)
|
|
{
|
|
var latestNode = root;
|
|
|
|
if (path.Count > 1)
|
|
for (var index = 0; index < path.Count - 1; index++)
|
|
{
|
|
var subkey = path[index];
|
|
if (latestNode.TryGetNode(subkey, out var currentNode))
|
|
{
|
|
if (currentNode.HasValue)
|
|
throw new
|
|
TomlParseException($"The key {".".Join(path)} already has a value assigned to it!",
|
|
ParseState.KeyValuePair);
|
|
}
|
|
else
|
|
{
|
|
currentNode = new TomlTable
|
|
{
|
|
IsInline = true
|
|
};
|
|
latestNode[subkey] = currentNode;
|
|
}
|
|
|
|
latestNode = currentNode;
|
|
}
|
|
|
|
if (latestNode.HasKey(path[path.Count - 1]))
|
|
throw new TomlParseException($"The key {".".Join(path)} is already defined!", ParseState.KeyValuePair);
|
|
|
|
latestNode[path[path.Count - 1]] = node;
|
|
}
|
|
|
|
static TomlTable CreateTable(TomlNode root, List<string> path, bool arrayTable)
|
|
{
|
|
if (path.Count == 0) return null;
|
|
|
|
var latestNode = root;
|
|
|
|
for (var index = 0; index < path.Count; index++)
|
|
{
|
|
var subkey = path[index];
|
|
|
|
if (latestNode.TryGetNode(subkey, out var node))
|
|
{
|
|
if (node.IsArray && arrayTable)
|
|
{
|
|
var arr = (TomlArray)node;
|
|
|
|
if (!arr.IsTableArray)
|
|
throw new
|
|
TomlParseException($"The array {".".Join(path)} cannot be redefined as an array table!",
|
|
ParseState.Table);
|
|
|
|
if (index == path.Count - 1)
|
|
{
|
|
latestNode = new TomlTable();
|
|
arr.Add(latestNode);
|
|
break;
|
|
}
|
|
|
|
latestNode = arr[arr.ChildrenCount - 1];
|
|
continue;
|
|
}
|
|
|
|
if (node.HasValue)
|
|
{
|
|
if (!(node is TomlArray array) || !array.IsTableArray)
|
|
throw new TomlParseException($"The key {".".Join(path)} has a value assigned to it!",
|
|
ParseState.Table);
|
|
|
|
latestNode = array[array.ChildrenCount - 1];
|
|
continue;
|
|
}
|
|
|
|
if (index == path.Count - 1)
|
|
{
|
|
if (arrayTable && !node.IsArray)
|
|
throw new
|
|
TomlParseException($"The table {".".Join(path)} cannot be redefined as an array table!",
|
|
ParseState.Table);
|
|
if (node is TomlTable tbl && !tbl.IsInline)
|
|
throw new TomlParseException($"The table {".".Join(path)} is defined multiple times!",
|
|
ParseState.Table);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (index == path.Count - 1 && arrayTable)
|
|
{
|
|
var table = new TomlTable();
|
|
var arr = new TomlArray
|
|
{
|
|
IsTableArray = true
|
|
};
|
|
arr.Add(table);
|
|
latestNode[subkey] = arr;
|
|
latestNode = table;
|
|
break;
|
|
}
|
|
|
|
node = new TomlTable
|
|
{
|
|
IsInline = true
|
|
};
|
|
latestNode[subkey] = node;
|
|
}
|
|
|
|
latestNode = node;
|
|
}
|
|
|
|
var result = (TomlTable)latestNode;
|
|
return result;
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
|
|
#region Exception Types
|
|
|
|
public class TomlException : Exception
|
|
{
|
|
public TomlException(string message) : base(message) { }
|
|
}
|
|
|
|
public class TomlParseException : TomlException
|
|
{
|
|
public TomlParseException(string message, TOML.ParseState state) : base(message) => ParseState = state;
|
|
public TOML.ParseState ParseState { get; }
|
|
}
|
|
|
|
public class TomlFormatException : TomlException
|
|
{
|
|
public TomlFormatException(string message) : base(message) { }
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Parse utilities
|
|
|
|
static class TomlSyntax
|
|
{
|
|
#region Type Patterns
|
|
|
|
public const string TRUE_VALUE = "true";
|
|
public const string FALSE_VALUE = "false";
|
|
public const string NAN_VALUE = "nan";
|
|
public const string POS_NAN_VALUE = "+nan";
|
|
public const string NEG_NAN_VALUE = "-nan";
|
|
public const string INF_VALUE = "inf";
|
|
public const string POS_INF_VALUE = "+inf";
|
|
public const string NEG_INF_VALUE = "-inf";
|
|
|
|
public static bool IsBoolean(string s) => s == TRUE_VALUE || s == FALSE_VALUE;
|
|
|
|
public static bool IsPosInf(string s) => s == INF_VALUE || s == POS_INF_VALUE;
|
|
|
|
public static bool IsNegInf(string s) => s == NEG_INF_VALUE;
|
|
|
|
public static bool IsNaN(string s) => s == NAN_VALUE || s == POS_NAN_VALUE || s == NEG_NAN_VALUE;
|
|
|
|
public static bool IsInteger(string s) => IntegerPattern.IsMatch(s);
|
|
|
|
public static bool IsFloat(string s) => FloatPattern.IsMatch(s);
|
|
|
|
public static bool IsIntegerWithBase(string s, out int numberBase)
|
|
{
|
|
numberBase = 10;
|
|
var match = BasedIntegerPattern.Match(s);
|
|
if (!match.Success) return false;
|
|
IntegerBases.TryGetValue(match.Groups["base"].Value, out numberBase);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* A pattern to verify the integer value according to the TOML specification.
|
|
*/
|
|
public static readonly Regex IntegerPattern =
|
|
new Regex(@"^(\+|-)?(?!_)(0|(?!0)(_?\d)*)$", RegexOptions.Compiled);
|
|
|
|
/**
|
|
* A pattern to verify a special 0x, 0o and 0b forms of an integer according to the TOML specification.
|
|
*/
|
|
public static readonly Regex BasedIntegerPattern =
|
|
new Regex(@"^(\+|-)?0(?<base>x|b|o)(?!_)(_?[0-9A-F])*$", RegexOptions.Compiled | RegexOptions.IgnoreCase);
|
|
|
|
/**
|
|
* A pattern to verify the float value according to the TOML specification.
|
|
*/
|
|
public static readonly Regex FloatPattern =
|
|
new
|
|
Regex(@"^(\+|-)?(?!_)(0|(?!0)(_?\d)+)(((e(\+|-)?(?!_)(_?\d)+)?)|(\.(?!_)(_?\d)+(e(\+|-)?(?!_)(_?\d)+)?))$",
|
|
RegexOptions.Compiled | RegexOptions.IgnoreCase);
|
|
|
|
/**
|
|
* A helper dictionary to map TOML base codes into the radii.
|
|
*/
|
|
public static readonly Dictionary<string, int> IntegerBases = new Dictionary<string, int>
|
|
{
|
|
["x"] = 16,
|
|
["o"] = 8,
|
|
["b"] = 2
|
|
};
|
|
|
|
/**
|
|
* A helper dictionary to map non-decimal bases to their TOML identifiers
|
|
*/
|
|
public static readonly Dictionary<int, string> BaseIdentifiers = new Dictionary<int, string>
|
|
{
|
|
[2] = "b",
|
|
[8] = "o",
|
|
[16] = "x"
|
|
};
|
|
|
|
/**
|
|
* Valid date formats with timezone as per RFC3339.
|
|
*/
|
|
public static readonly string[] RFC3339Formats =
|
|
{
|
|
"yyyy'-'MM-dd HH':'mm':'ssK", "yyyy'-'MM-dd HH':'mm':'ss'.'fK", "yyyy'-'MM-dd HH':'mm':'ss'.'ffK",
|
|
"yyyy'-'MM-dd HH':'mm':'ss'.'fffK", "yyyy'-'MM-dd HH':'mm':'ss'.'ffffK",
|
|
"yyyy'-'MM-dd HH':'mm':'ss'.'fffffK", "yyyy'-'MM-dd HH':'mm':'ss'.'ffffffK",
|
|
"yyyy'-'MM-dd HH':'mm':'ss'.'fffffffK"
|
|
};
|
|
|
|
/**
|
|
* Valid date formats without timezone (assumes local) as per RFC3339.
|
|
*/
|
|
public static readonly string[] RFC3339LocalDateTimeFormats =
|
|
{
|
|
"yyyy'-'MM-dd HH':'mm':'ss", "yyyy'-'MM-dd HH':'mm':'ss'.'f", "yyyy'-'MM-dd HH':'mm':'ss'.'ff",
|
|
"yyyy'-'MM-dd HH':'mm':'ss'.'fff", "yyyy'-'MM-dd HH':'mm':'ss'.'ffff",
|
|
"yyyy'-'MM-dd HH':'mm':'ss'.'fffff", "yyyy'-'MM-dd HH':'mm':'ss'.'ffffff",
|
|
"yyyy'-'MM-dd HH':'mm':'ss'.'fffffff"
|
|
};
|
|
|
|
/**
|
|
* Valid full date format as per TOML spec.
|
|
*/
|
|
public static readonly string LocalDateFormat = "yyyy'-'MM'-'dd";
|
|
|
|
/**
|
|
* Valid time formats as per TOML spec.
|
|
*/
|
|
public static readonly string[] RFC3339LocalTimeFormats =
|
|
{
|
|
"HH':'mm':'ss", "HH':'mm':'ss'.'f", "HH':'mm':'ss'.'ff", "HH':'mm':'ss'.'fff", "HH':'mm':'ss'.'ffff",
|
|
"HH':'mm':'ss'.'fffff", "HH':'mm':'ss'.'ffffff", "HH':'mm':'ss'.'fffffff"
|
|
};
|
|
|
|
#endregion
|
|
|
|
#region Character definitions
|
|
|
|
public const char ARRAY_END_SYMBOL = ']';
|
|
public const char ITEM_SEPARATOR = ',';
|
|
public const char ARRAY_START_SYMBOL = '[';
|
|
public const char BASIC_STRING_SYMBOL = '\"';
|
|
public const char COMMENT_SYMBOL = '#';
|
|
public const char ESCAPE_SYMBOL = '\\';
|
|
public const char KEY_VALUE_SEPARATOR = '=';
|
|
public const char NEWLINE_CARRIAGE_RETURN_CHARACTER = '\r';
|
|
public const char NEWLINE_CHARACTER = '\n';
|
|
public const char SUBKEY_SEPARATOR = '.';
|
|
public const char TABLE_END_SYMBOL = ']';
|
|
public const char TABLE_START_SYMBOL = '[';
|
|
public const char INLINE_TABLE_START_SYMBOL = '{';
|
|
public const char INLINE_TABLE_END_SYMBOL = '}';
|
|
public const char LITERAL_STRING_SYMBOL = '\'';
|
|
public const char INT_NUMBER_SEPARATOR = '_';
|
|
|
|
public static readonly char[] NewLineCharacters = { NEWLINE_CHARACTER, NEWLINE_CARRIAGE_RETURN_CHARACTER };
|
|
|
|
|
|
public static bool IsQuoted(char c) => c == BASIC_STRING_SYMBOL || c == LITERAL_STRING_SYMBOL;
|
|
|
|
public static bool IsWhiteSpace(char c) => c == ' ' || c == '\t';
|
|
|
|
public static bool IsNewLine(char c) => c == NEWLINE_CHARACTER || c == NEWLINE_CARRIAGE_RETURN_CHARACTER;
|
|
|
|
public static bool IsEmptySpace(char c) => IsWhiteSpace(c) || IsNewLine(c);
|
|
|
|
public static bool IsBareKey(char c) =>
|
|
'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' || c == '_' || c == '-';
|
|
|
|
public static bool ShouldBeEscaped(char c) => (c <= '\u001f' || c == '\u007f') && !IsNewLine(c);
|
|
|
|
public static bool IsValueSeparator(char c) =>
|
|
c == ITEM_SEPARATOR || c == ARRAY_END_SYMBOL || c == INLINE_TABLE_END_SYMBOL;
|
|
|
|
#endregion
|
|
}
|
|
|
|
static class StringUtils
|
|
{
|
|
public static string AsKey(this string key)
|
|
{
|
|
var quote = false;
|
|
foreach (var c in key)
|
|
{
|
|
if (TomlSyntax.IsBareKey(c)) continue;
|
|
quote = true;
|
|
break;
|
|
}
|
|
return !quote ? key : $"{TomlSyntax.BASIC_STRING_SYMBOL}{key.Escape()}{TomlSyntax.BASIC_STRING_SYMBOL}";
|
|
}
|
|
|
|
public static string Join(this string self, IEnumerable<string> subItems)
|
|
{
|
|
var sb = new StringBuilder();
|
|
var first = true;
|
|
|
|
foreach (var subItem in subItems)
|
|
{
|
|
if (!first) sb.Append(self);
|
|
first = false;
|
|
sb.Append(subItem);
|
|
}
|
|
|
|
return sb.ToString();
|
|
}
|
|
|
|
public static bool TryParseDateTime(string s,
|
|
string[] formats,
|
|
DateTimeStyles styles,
|
|
out DateTime dateTime,
|
|
out int parsedFormat)
|
|
{
|
|
parsedFormat = 0;
|
|
dateTime = new DateTime();
|
|
|
|
for (var i = 0; i < formats.Length; i++)
|
|
{
|
|
var format = formats[i];
|
|
if (!DateTime.TryParseExact(s, format, CultureInfo.InvariantCulture, styles, out dateTime)) continue;
|
|
parsedFormat = i;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public static void AsComment(this string self, TextWriter tw)
|
|
{
|
|
foreach (var line in self.Split(TomlSyntax.NEWLINE_CHARACTER))
|
|
tw.WriteLine($"{TomlSyntax.COMMENT_SYMBOL} {line.Trim()}");
|
|
}
|
|
|
|
public static string RemoveAll(this string txt, char toRemove)
|
|
{
|
|
var sb = new StringBuilder(txt.Length);
|
|
|
|
foreach (var c in txt)
|
|
if (c != toRemove)
|
|
sb.Append(c);
|
|
|
|
return sb.ToString();
|
|
}
|
|
|
|
public static string Escape(this string txt, bool escapeNewlines = true)
|
|
{
|
|
var stringBuilder = new StringBuilder(txt.Length + 2);
|
|
for (var i = 0; i < txt.Length; i++)
|
|
{
|
|
var c = txt[i];
|
|
switch (c)
|
|
{
|
|
case '\b':
|
|
stringBuilder.Append(@"\b");
|
|
break;
|
|
case '\t':
|
|
stringBuilder.Append(@"\t");
|
|
break;
|
|
case '\n' when escapeNewlines:
|
|
stringBuilder.Append(@"\n");
|
|
break;
|
|
case '\f':
|
|
stringBuilder.Append(@"\f");
|
|
break;
|
|
case '\r' when escapeNewlines:
|
|
stringBuilder.Append(@"\r");
|
|
break;
|
|
case '\\':
|
|
stringBuilder.Append(@"\");
|
|
break;
|
|
case '\"':
|
|
stringBuilder.Append(@"\""");
|
|
break;
|
|
default:
|
|
if (TomlSyntax.ShouldBeEscaped(c) || TOML.ForceASCII && c > sbyte.MaxValue)
|
|
{
|
|
if (char.IsSurrogatePair(txt, i))
|
|
stringBuilder.Append("\\U").Append(char.ConvertToUtf32(txt, i++).ToString("X8"));
|
|
else
|
|
stringBuilder.Append("\\u").Append(((ushort)c).ToString("X4"));
|
|
}
|
|
else
|
|
stringBuilder.Append(c);
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return stringBuilder.ToString();
|
|
}
|
|
|
|
|
|
public static string Unescape(this string txt)
|
|
{
|
|
if (string.IsNullOrEmpty(txt)) return txt;
|
|
var stringBuilder = new StringBuilder(txt.Length);
|
|
for (var i = 0; i < txt.Length;)
|
|
{
|
|
var num = txt.IndexOf('\\', i);
|
|
var next = num + 1;
|
|
if (num < 0 || num == txt.Length - 1) num = txt.Length;
|
|
stringBuilder.Append(txt, i, num - i);
|
|
if (num >= txt.Length) break;
|
|
var c = txt[next];
|
|
switch (c)
|
|
{
|
|
case 'b':
|
|
stringBuilder.Append('\b');
|
|
break;
|
|
case 't':
|
|
stringBuilder.Append('\t');
|
|
break;
|
|
case 'n':
|
|
stringBuilder.Append('\n');
|
|
break;
|
|
case 'f':
|
|
stringBuilder.Append('\f');
|
|
break;
|
|
case 'r':
|
|
stringBuilder.Append('\r');
|
|
break;
|
|
case '\'':
|
|
stringBuilder.Append('\'');
|
|
break;
|
|
case '\"':
|
|
stringBuilder.Append('\"');
|
|
break;
|
|
case '\\':
|
|
stringBuilder.Append('\\');
|
|
break;
|
|
case 'u':
|
|
if (next + 4 >= txt.Length) throw new Exception("Undefined escape sequence!");
|
|
stringBuilder.Append(char.ConvertFromUtf32(Convert.ToInt32(txt.Substring(next + 1, 4), 16)));
|
|
num += 4;
|
|
break;
|
|
case 'U':
|
|
if (next + 8 >= txt.Length) throw new Exception("Undefined escape sequence!");
|
|
stringBuilder.Append(char.ConvertFromUtf32(Convert.ToInt32(txt.Substring(next + 1, 8), 16)));
|
|
num += 8;
|
|
break;
|
|
default:
|
|
throw new Exception("Undefined escape sequence!");
|
|
}
|
|
|
|
i = num + 2;
|
|
}
|
|
|
|
return stringBuilder.ToString();
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
} |