101 lines
3.1 KiB
C#
101 lines
3.1 KiB
C#
/*
|
|
* dbMango
|
|
*
|
|
* Copyright 2025 Deutsche Bank AG
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
using System.Text.RegularExpressions;
|
|
|
|
namespace Rms.Risk.Mango.Language.Ast;
|
|
|
|
public abstract partial class AstNodeBase
|
|
{
|
|
private readonly Lazy<List<AstNodeBase>> _children = new();
|
|
private readonly Lazy<Dictionary<string, object>> _properties = new();
|
|
|
|
public bool Empty => Count == 0;
|
|
public int Count => _children.IsValueCreated ? _children.Value.Count : 0;
|
|
public IReadOnlyList<AstNodeBase> Children => _children.Value;
|
|
public AstNodeBase? Parent { get; set; } = null;
|
|
|
|
|
|
public void Add(AstNodeBase child)
|
|
{
|
|
_children.Value.Add(child);
|
|
child.Parent = this;
|
|
}
|
|
|
|
public void SetProperty(string name, object value) => _properties.Value[name] = value;
|
|
|
|
public T? GetProperty<T>(string name, T? defaultValue = default(T), bool checkParent = true )
|
|
{
|
|
if (_properties.IsValueCreated && _properties.Value.TryGetValue(name, out var v))
|
|
return (T)v;
|
|
|
|
if (Parent == null || !checkParent)
|
|
return defaultValue;
|
|
|
|
return Parent.GetProperty<T>(name);
|
|
}
|
|
|
|
public override string ToString() => AsText();
|
|
|
|
public string AsText()
|
|
{
|
|
var sb = new StringBuilder();
|
|
Append(sb, 0);
|
|
return sb.ToString();
|
|
}
|
|
|
|
public abstract void Append(StringBuilder sb, int indent);
|
|
public abstract JsonNode? AsJson();
|
|
|
|
protected static string Spaces(int indent)
|
|
{
|
|
var sb = new StringBuilder();
|
|
for (int i = 0; i < indent; i++)
|
|
sb.Append(" ");
|
|
return sb.ToString();
|
|
}
|
|
|
|
[GeneratedRegex("^[a-zA-Z_][a-zA-Z0-9_]+$")]
|
|
private static partial Regex SimpleVarNameRegex();
|
|
|
|
[GeneratedRegex("^[a-zA-Z_][a-zA-Z0-9_.]+$")]
|
|
private static partial Regex ComplexVarNameRegex();
|
|
|
|
protected static string PreprocessFieldName(string? name)
|
|
=> name?.Trim('\"').Trim('\'').TrimStart('$') ?? "";
|
|
|
|
protected static void AppendField(StringBuilder sb, string name)
|
|
{
|
|
if ( SimpleVarNameRegex().IsMatch(name) )
|
|
sb.Append(name);
|
|
else if ( ComplexVarNameRegex().IsMatch(name) )
|
|
sb.Append($"${name}");
|
|
else
|
|
sb.Append($"\'{name}'");
|
|
}
|
|
|
|
protected static void AppendFieldName(StringBuilder sb, string name)
|
|
{
|
|
if ( SimpleVarNameRegex().IsMatch(name) )
|
|
sb.Append(name);
|
|
else
|
|
sb.Append($"\"{name}\"");
|
|
}
|
|
|
|
}
|