/
Command.cs
72 lines (55 loc) · 1.94 KB
/
Command.cs
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using System;
using System.Collections.Generic;
using ServiceStack.Text;
#if !NET6_0_OR_GREATER
using ServiceStack.Extensions;
#endif
namespace ServiceStack;
public class Command
{
public string Name { get; set; }
public ReadOnlyMemory<char> Original { get; set; }
public List<ReadOnlyMemory<char>> Args { get; internal set; } = new();
public ReadOnlyMemory<char> Suffix { get; set; }
public int IndexOfMethodEnd(ReadOnlyMemory<char> commandsString, int pos)
{
//finding end of suffix, e.g: 'SUM(*) Total' or 'SUM(*) as Total'
var endPos = pos;
var cmdSpan = commandsString.Span;
while (cmdSpan.Length > endPos && char.IsWhiteSpace(cmdSpan[endPos]))
endPos++;
if (cmdSpan.Length > endPos && cmdSpan.IndexOf("as ", endPos) == endPos)
endPos += "as ".Length;
while (cmdSpan.Length > endPos && char.IsWhiteSpace(cmdSpan[endPos]))
endPos++;
while (cmdSpan.Length > endPos &&
char.IsLetterOrDigit(cmdSpan[endPos]))
endPos++;
this.Suffix = commandsString.Slice(pos, endPos - pos).TrimEnd();
return endPos;
}
//Output different format for debugging to verify command was parsed correctly
public virtual string ToDebugString()
{
var sb = StringBuilderCacheAlt.Allocate();
foreach (var arg in Args)
{
if (sb.Length > 0)
sb.Append('|');
sb.Append(arg);
}
return $"[{Name}:{StringBuilderCacheAlt.ReturnAndFree(sb)}]{Suffix}";
}
public override string ToString()
{
var sb = StringBuilderCacheAlt.Allocate();
foreach (var arg in Args)
{
if (sb.Length > 0)
sb.Append(',');
sb.Append(arg);
}
return $"{Name}({StringBuilderCacheAlt.ReturnAndFree(sb)}){Suffix}";
}
public ReadOnlyMemory<char> AsMemory() => ToString().AsMemory();
}