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crtr/Assets/Cryville/Crtr/Skin/SkinInterpreter.cs

123 lines
3.3 KiB
C#

using Cryville.Common.Pdt;
using System;
using System.Collections.Generic;
using System.Reflection;
namespace Cryville.Crtr.Skin {
public class SkinInterpreter : PdtInterpreter {
public SkinInterpreter(string src, Binder binder) : base(src, binder) { }
readonly List<SkinSelector> s = new();
readonly HashSet<string> a = new();
readonly List<string> k = new(2);
protected override object InterpretKey(Type type) {
if (typeof(SkinElement).IsAssignableFrom(type))
return InterpretSkinElementKey();
else if (typeof(AnimationSpan).IsAssignableFrom(type))
return InterpretAnimationSpanKey();
else
return base.InterpretKey(type);
}
object InterpretSkinElementKey() {
s.Clear(); a.Clear(); k.Clear();
bool invalidKeyFlag = false, compKeyFlag = false;
while (true) {
int pp = Position;
switch (cc) {
case '@':
GetChar();
a.Add(GetIdentifier());
break;
case '$':
GetChar();
s.Add(new SkinSelector.CreateObject());
invalidKeyFlag = true;
break;
case '.':
GetChar();
if (cc == '.') {
GetChar();
s.Add(new SkinSelector.AtAnchor(GetIdentifier()));
invalidKeyFlag = true;
}
else {
var p3 = GetIdentifier();
s.Add(new SkinSelector.Anchor(p3));
if (!invalidKeyFlag) {
if (k.Count != 1) invalidKeyFlag = true;
else k.Add(p3);
}
}
break;
case '>':
GetChar();
s.Add(new SkinSelector.Property(GetExp()));
break;
case ';':
case ':':
if (invalidKeyFlag) throw new FormatException("Invalid key format");
return SkinPropertyKey.Construct(a, k, compKeyFlag);
case '{':
return new SkinSelectors(s, a);
case '}':
throw new FormatException("Invalid token");
case '*':
GetChar();
compKeyFlag = true;
break;
default:
var p4 = GetIdentifier();
s.Add(new SkinSelector.ElementType(p4));
if (!invalidKeyFlag) {
if (k.Count != 0) invalidKeyFlag = true;
else k.Add(p4);
}
break;
}
ws();
if (Position == pp) throw new FormatException("Invalid selector or key format");
}
}
object InterpretAnimationSpanKey() {
if ((ct & CharCategory.Digit) != 0 || cc == ',') {
float start = 0, end = 1;
if (cc != ',') {
start = float.Parse(GetNumber());
ws(); if (cc != ',') throw new FormatException("Invalid span format");
}
GetChar(); ws();
if (cc != '{') end = float.Parse(GetNumber());
ws();
if (cc != '{') throw new FormatException("Invalid span format");
return new Clip(start, end);
}
a.Clear(); k.Clear();
while (true) {
int pp = Position;
switch (cc) {
case '.':
GetChar();
if (k.Count != 1)
throw new FormatException("Invalid key format");
k.Add(GetIdentifier());
break;
case ';':
case ':':
return SkinPropertyKey.Construct(a, k, false);
case '{':
throw new FormatException("Invalid token");
case '}':
throw new FormatException("Invalid token");
default:
if (k.Count != 0)
throw new FormatException("Invalid key format");
k.Add(GetIdentifier());
break;
}
ws();
if (Position == pp) throw new FormatException("Invalid selector or key format");
}
}
}
}