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Refactor representation of character category in PDT.

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PopSlime
2023-11-29 14:51:14 +08:00
parent 6d0975b0a1
commit 5ef6e2b4a3
3 changed files with 37 additions and 41 deletions
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46
Assets/Cryville/Common/Pdt/PdtInterpreter.cs
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@@ -12,23 +12,19 @@ namespace Cryville.Common.Pdt {
/// Interpreter for Property Definition Tree (PDT) file format.
/// </summary>
public partial class PdtInterpreter {
/// <summary>
/// The character category map.
/// </summary>
/// <remarks>
/// <list type="bullet">
/// <item><term><c>0x0001</c></term><description>White Space</description></item>
/// <item><term><c>0x0010</c></term><description>Identifier</description></item>
/// <item><term><c>0x0020</c></term><description>Identifier Begin</description></item>
/// <item><term><c>0x0040</c></term><description>Digit</description></item>
/// <item><term><c>0x0080</c></term><description>Operator</description></item>
/// <item><term><c>0x0100</c></term><description>String</description></item>
/// <item><term><c>0x0200</c></term><description>Opening Bracket</description></item>
/// <item><term><c>0x0400</c></term><description>Closing Bracket</description></item>
/// <item><term><c>0x0800</c></term><description>End of Expression</description></item>
/// <item><term><c>0x1000</c></term><description>End of Key</description></item>
/// </list>
/// </remarks>
[Flags]
protected enum CharCategory {
WhiteSpace = 0x0001,
Identifier = 0x0010,
IdentifierBegin = 0x0020,
Digit = 0x0040,
Operator = 0x0080,
StringDelimiter = 0x0100,
OpeningBracket = 0x0200,
ClosingBracket = 0x0400,
EndOfExpression = 0x0800,
EndOfKey = 0x1000,
}
static readonly int[] cm = new int[] {
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0001, 0x0001, 0x0000, 0x0000, 0x0001, 0x0000, 0x0000,
@@ -78,14 +74,14 @@ namespace Cryville.Common.Pdt {
/// The category of the character.
/// </summary>
/// <exception cref="IndexOutOfRangeException">The end of the source string is reached.</exception>
protected int ct { get { return cm[cc]; } }
protected CharCategory ct { get { return (CharCategory)cm[cc]; } }
/// <summary>
/// Reads a token until a character of type <paramref name="flag" /> is met.
/// </summary>
/// <param name="flag">The type filter.</param>
/// <returns>A token from the current position (inclusive) to the next character of type <paramref name="flag" /> (exclusive).</returns>
/// <exception cref="IndexOutOfRangeException">No character of type <paramref name="flag" /> is met.</exception>
protected string tokenb(int flag) {
protected string tokenb(CharCategory flag) {
int sp = Position;
while ((ct & flag) == 0) Position++;
return Source.Substring(sp, Position - sp);
@@ -96,7 +92,7 @@ namespace Cryville.Common.Pdt {
/// <param name="flag">The type filter.</param>
/// <returns>A token from the current position (inclusive) to the next character that is not of type <paramref name="flag" /> (exclusive).</returns>
/// <exception cref="IndexOutOfRangeException">No character that is not of type <paramref name="flag" /> is met.</exception>
protected string tokenw(int flag) {
protected string tokenw(CharCategory flag) {
int sp = Position;
while ((ct & flag) != 0) Position++;
return Source.Substring(sp, Position - sp);
@@ -106,7 +102,7 @@ namespace Cryville.Common.Pdt {
/// </summary>
/// <exception cref="IndexOutOfRangeException">The end of the source string is reached.</exception>
protected void ws() {
while ((ct & 0x0001) != 0) Position++;
while ((ct & CharCategory.WhiteSpace) != 0) Position++;
}
#pragma warning restore IDE1006
@@ -126,8 +122,8 @@ namespace Cryville.Common.Pdt {
/// <returns>An identifier.</returns>
/// <exception cref="IndexOutOfRangeException">The end of the source string is reached.</exception>
protected string GetIdentifier() {
if ((ct & 0x0020) == 0) return "";
return tokenw(0x0010);
if ((ct & CharCategory.IdentifierBegin) == 0) return "";
return tokenw(CharCategory.Identifier);
}
/// <summary>
/// Reads a number.
@@ -135,7 +131,7 @@ namespace Cryville.Common.Pdt {
/// <returns>A number.</returns>
/// <exception cref="IndexOutOfRangeException">The end of the source string is reached.</exception>
protected string GetNumber() {
return tokenw(0x0040);
return tokenw(CharCategory.Digit);
}
/// <summary>
/// Reads a string.
@@ -295,7 +291,7 @@ namespace Cryville.Common.Pdt {
/// </summary>
/// <returns>The interpreted key.</returns>
protected virtual object InterpretKey(Type type) {
return tokenb(0x1000).Trim();
return tokenb(CharCategory.EndOfKey).Trim();
}
}
/// <summary>