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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| using System; | ||
| using System.Diagnostics.CodeAnalysis; | ||
| using VDF.Models; | ||
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| namespace VDF.Exceptions; | ||
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| public class VDFSyntaxException : Exception | ||
| { | ||
| public VDFSyntaxException(VDFToken? unexpected, string[] expected, int index, int line, int character) : base($"Unexpected {(unexpected != null ? $"{unexpected?.Type} '{unexpected?.Value}'" : "EOF")} at position {index} (line {line + 1}, character {character + 1}). Expected {string.Join(" | ", expected)}.") | ||
| { | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| using System; | ||
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| namespace VDF.Models; | ||
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| public readonly record struct KeyValue | ||
| { | ||
| public required string Key { get; init; } | ||
| public required dynamic Value { get; init; } | ||
| public required string? Conditional { get; init; } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
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| namespace VDF.Models; | ||
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| public class KeyValues : List<KeyValue> | ||
| { | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| using System; | ||
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| namespace VDF.Models; | ||
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| public readonly record struct VDFToken | ||
| { | ||
| public required VDFTokenType Type { get; init; } | ||
| public required string Value { get; init; } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| using System; | ||
|
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| namespace VDF.Models; | ||
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| public enum VDFTokenType : byte | ||
| { | ||
| String, | ||
| Conditional, | ||
| ControlCharacter, | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <TargetFramework>net7.0</TargetFramework> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
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| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| using System; | ||
| using VDF.Exceptions; | ||
| using VDF.Models; | ||
|
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| namespace VDF; | ||
|
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| public static class VDFSerializer | ||
| { | ||
| public static KeyValues Deserialize(string str) | ||
| { | ||
| VDFTokeniser tokeniser = new(str); | ||
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| static KeyValues ReadKeyValues(VDFTokeniser tokeniser, bool isObject) | ||
| { | ||
| KeyValues keyValues = new(); | ||
|
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| while (true) | ||
| { | ||
| KeyValue? keyValue = tokeniser.Read() switch | ||
| { | ||
| { Type: VDFTokenType.ControlCharacter, Value: "}" } when isObject => null, | ||
| null when !isObject => null, | ||
| null => throw new VDFSyntaxException( | ||
| null, | ||
| new[] { "key" }, | ||
| tokeniser.Index, | ||
| tokeniser.Line, | ||
| tokeniser.Character | ||
| ), | ||
| { Type: VDFTokenType.String } token => ReadKeyValue(tokeniser, token.Value), | ||
| VDFToken token => throw new VDFSyntaxException( | ||
| token, | ||
| new[] { "key" }, | ||
| tokeniser.Index, | ||
| tokeniser.Line, | ||
| tokeniser.Character | ||
| ), | ||
| }; | ||
|
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| if (keyValue == null) | ||
| { | ||
| break; | ||
| } | ||
|
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| keyValues.Add(keyValue.Value); | ||
| } | ||
|
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| return keyValues; | ||
| } | ||
|
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| static KeyValue ReadKeyValue(VDFTokeniser tokeniser, string key) | ||
| { | ||
| VDFToken? valueToken = tokeniser.Read(); | ||
|
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| string? conditional; | ||
|
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| if (valueToken is { Type: VDFTokenType.Conditional }) | ||
| { | ||
| conditional = valueToken.Value.Value; | ||
| valueToken = tokeniser.Read(); | ||
| } | ||
| else | ||
| { | ||
| conditional = null; | ||
| } | ||
|
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| return valueToken switch | ||
| { | ||
| { Type: VDFTokenType.ControlCharacter, Value: "{" } => new KeyValue | ||
| { | ||
| Key = key, | ||
| Value = ReadKeyValues(tokeniser, true), | ||
| Conditional = conditional, | ||
| }, | ||
| { Type: VDFTokenType.String } token => new KeyValue | ||
| { | ||
| Key = key, | ||
| Value = token.Value, | ||
| Conditional = ReadConditional(tokeniser) ?? conditional, | ||
| }, | ||
| VDFToken token => throw new VDFSyntaxException( | ||
| token, | ||
| new[] { "value", "{" }, | ||
| tokeniser.Index, | ||
| tokeniser.Line, | ||
| tokeniser.Character | ||
| ), | ||
| null => throw new VDFSyntaxException( | ||
| null, | ||
| new[] { "value", "{" }, | ||
| tokeniser.Index, | ||
| tokeniser.Line, | ||
| tokeniser.Character | ||
| ), | ||
| }; | ||
| } | ||
|
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| static string? ReadConditional(VDFTokeniser tokeniser) | ||
| { | ||
| if (tokeniser.Read(true) is { Type: VDFTokenType.Conditional } token) | ||
| { | ||
| tokeniser.Read(); | ||
| return token.Value; | ||
| } | ||
|
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| return null; | ||
| } | ||
|
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| return ReadKeyValues(tokeniser, false); | ||
| } | ||
|
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| public static string Serialize(KeyValues keyValues, int level = 0) | ||
| { | ||
| string str = ""; | ||
|
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| foreach (KeyValue keyValue in keyValues) | ||
| { | ||
| if (keyValue.Value is KeyValues kvs) | ||
| { | ||
| str += $"{new string('\t', level)}\"{keyValue.Key}\"{(keyValue.Conditional != null ? $" {keyValue.Conditional}" : "")}\r\n"; | ||
| str += $"{new string('\t', level)}{{\r\n"; | ||
| str += $"{Serialize(kvs, level + 1)}{new string('\t', level)}}}\r\n"; | ||
| } | ||
| else if (keyValue.Value is string value) | ||
| { | ||
| str += $"{new string('\t', level)}\"{keyValue.Key}\"\t\"{value}\"{(keyValue.Conditional != null ? $" {keyValue.Conditional}" : "")}\r\n"; | ||
| } | ||
| } | ||
|
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| return str; | ||
| } | ||
| } |
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