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-rw-r--r--src/StyleReader.cs260
1 files changed, 137 insertions, 123 deletions
diff --git a/src/StyleReader.cs b/src/StyleReader.cs
index 26037091..458b7856 100644
--- a/src/StyleReader.cs
+++ b/src/StyleReader.cs
@@ -28,6 +28,8 @@ using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
+using System.Text.RegularExpressions;
+using Crow.Coding;
namespace Crow
{
@@ -37,150 +39,162 @@ namespace Crow
//TODO: style key shared by different class may use only first encouneter class setter, which can cause bug.
public class StyleReader : StreamReader
{
- enum readerState { classNames, propertyName, expression }
- readerState state = readerState.classNames;
- string resourceId;
+ enum States { init, classNames, members, value, endOfStatement }
+
+ States curState = States.init;
+
int column = 1;
int line = 1;
- public StyleReader (Interface iface, Stream stream, string resId)
- : base(stream)
+ #region Character ValidityCheck
+ static Regex rxValidChar = new Regex(@"\p{Lu}|\p{Ll}|\p{Lt}|\p{Lm}|\p{Lo}|\p{Nl}|\p{Mn}|\p{Mc}|\p{Nd}|\p{Pc}|\p{Cf}");
+ static Regex rxNameStartChar = new Regex(@"_|\p{Lu}|\p{Ll}|\p{Lt}|\p{Lm}|\p{Lo}");
+ static Regex rxNameChar = new Regex(@"\p{Lu}|\p{Ll}|\p{Lt}|\p{Lm}|\p{Lo}|\p{Nl}|\p{Mn}|\p{Mc}|\p{Nd}|\p{Pc}|\p{Cf}");
+ static Regex rxDecimal = new Regex(@"[0-9]+");
+ static Regex rxHexadecimal = new Regex(@"[0-9a-fA-F]+");
+
+ public bool nextCharIsValidCharStartName
{
- resourceId = resId;
+ get { return rxNameStartChar.IsMatch(new string(new char[]{PeekChar()})); }
+ }
+ public bool nextCharIsValidCharName
+ {
+ get { return rxNameChar.IsMatch(new string(new char[]{PeekChar()})); }
+ }
+ #endregion
+
+ char ReadChar () {
+ column++;
+ return (Char)Read();
+ }
+ char PeekChar () {
+ return (Char)Peek();
+ }
+ void SkipWhiteSpaceAndLineBreak (){
+ while (!EndOfStream){
+ if (!PeekChar ().IsWhiteSpaceOrNewLine ())
+ break;
+ if (ReadChar () == '\n') {
+ line++;
+ column = 0;
+ }
+ }
+ }
+
+ public StyleReader (Dictionary<string, Style> styling, Stream stream, string resId)
+ : base(stream)
+ {
string styleKey = resId.Substring (0, resId.Length - 6);
string token = "";
List<string> targetsClasses = new List<string> ();
string currentProperty = "";
- int curlyBracketCount = 0;
-
while (!EndOfStream) {
- char c = (Char)Read ();
- if (c == '/' && !EndOfStream) {
- if ((char)Peek () == '/') {//process comment, skip until newline
- ReadLine ();
- continue;
- }
- }
- switch (state) {
- case readerState.classNames:
- if (c.IsWhiteSpaceOrNewLine () || c == ',' || c == '{') {
- if (!string.IsNullOrEmpty (token))
- targetsClasses.Add (token);
- if (c == '{')
- state = readerState.propertyName;
- token = "";
- }else if (c=='='){
- //this file contains only properties,
- //resource Id (minus .style extention) will determine the single target class
- if (targetsClasses.Count > 1)
- throwParserException ("Unexpected token '='");
- else if (targetsClasses.Count == 1) {
- if (!string.IsNullOrEmpty (token))
- throwParserException ("Unexpected token '='");
- currentProperty = targetsClasses [0];
- targetsClasses [0] = styleKey;
- }else{
- if (string.IsNullOrEmpty (token))
- throwParserException ("Unexpected token '='");
- targetsClasses.Add (styleKey);
- currentProperty = token;
- token = "";
- }
- state = readerState.expression;
- }else
- token += c;
+ SkipWhiteSpaceAndLineBreak ();
+ if (EndOfStream)
break;
- case readerState.propertyName:
- if (c.IsWhiteSpaceOrNewLine () || c == '=') {
- if (!string.IsNullOrEmpty (token))
- currentProperty = token;
- if (c == '=')
- state = readerState.expression;
- token = "";
- }else if (c == '}'){
- if (!string.IsNullOrEmpty (token))
- throwParserException ("Unexpected token '" + c + "'");
- targetsClasses = new List<string> ();
- currentProperty = "";
- state = readerState.classNames;
- } else
- token += c;
+ switch (Peek()) {
+ case '/':
+ ReadChar ();
+ if (PeekChar () != '/')
+ throw new ParserException (line, column, "Unexpected char '/'", resId);
+ ReadLine ();
+ break;
+ case ',':
+ ReadChar ();
+ if (!(curState == States.init || curState == States.classNames) || string.IsNullOrEmpty (token))
+ throw new ParserException (line, column, "Unexpected char ','", resId);
+ targetsClasses.Add (token);
+ token = "";
+ curState = States.classNames;
+ break;
+ case '{':
+ ReadChar ();
+ if (!(curState == States.init || curState == States.classNames) || string.IsNullOrEmpty (token))
+ throw new ParserException (line, column, "Unexpected char '{'", resId);
+ targetsClasses.Add (token);
+ token = "";
+ curState = States.members;
break;
- case readerState.expression:
- bool expressionIsFinished = false;
- if (curlyBracketCount == 0) {
- if (c == '{'){
- if (!string.IsNullOrEmpty(token.Trim()))
- throwParserException ("Unexpected token '{'");
- curlyBracketCount++;
- token = "{";
- }else if (c == '}')
- throwParserException ("Unexpected token '{'");
- else if (c == ';') {
- expressionIsFinished = true;
- } else
- token += c;
- } else {
- if (c == '{')
- curlyBracketCount++;
- else if (c == '}') {
- curlyBracketCount--;
- if (curlyBracketCount == 0)
- expressionIsFinished = true;
+ case '}':
+ ReadChar ();
+ if (curState != States.members)
+ throw new ParserException (line, column, "Unexpected char '}'", resId);
+ curState = States.classNames;
+ targetsClasses.Clear ();
+ break;
+ case '=':
+ ReadChar ();
+ if (!(curState == States.init || curState == States.members))
+ throw new ParserException (line, column, "Unexpected char '='", resId);
+ currentProperty = token;
+ token = "";
+ curState = States.value;
+ break;
+ case '"':
+ if (curState != States.value)
+ throw new ParserException (line, column, "Unexpected char '\"'", resId);
+ ReadChar ();
+
+ while (!EndOfStream) {
+ char c = PeekChar();
+ if (c == '\"') {
+ ReadChar ();
+ break;
}
- token += c;
+ token += ReadChar();
+ if (c == '\\' && !EndOfStream)
+ token += ReadChar();
+ }
+ curState = States.endOfStatement;
+ break;
+ case ';':
+ if (curState != States.endOfStatement)
+ throw new ParserException (line, column, "Unexpected end of statement", resId);
+ ReadChar ();
+ foreach (string tc in targetsClasses) {
+ if (!styling.ContainsKey (tc))
+ styling [tc] = new Style ();
+ else if (styling [tc].ContainsKey (currentProperty))
+ continue;
+ styling [tc] [currentProperty] = token;
+ #if DESIGN_MODE
+ styling [tc].Locations[currentProperty] = new FileLocation(resId, line,column);
+ #endif
+ //System.Diagnostics.Debug.WriteLine ("Style: {3} : {0}.{1} = {2}", tc, currentProperty, token, resId);
}
- if (expressionIsFinished) {
- if (!string.IsNullOrEmpty (token)) {
- string expression = token.Trim ();
+ token = "";
+ curState = States.members;
+ break;
+ default:
+ if (curState == States.value)
+ throw new ParserException (line, column, "expecting value enclosed in '\"'", resId);
+ if (curState == States.endOfStatement)
+ throw new ParserException (line, column, "expecting end of statement", resId);
- foreach (string tc in targetsClasses) {
- if (!iface.Styling.ContainsKey (tc))
- iface.Styling [tc] = new Style ();
- else if (iface.Styling [tc].ContainsKey (currentProperty))
- continue;
- iface.Styling [tc] [currentProperty] = expression;
- }
- token = "";
- }
- //allow omiting ';' if curly bracket close expression
- while (!EndOfStream) {
- if (Char.IsWhiteSpace((char)Peek()))
- Read();
- else
- break;
- }
- if (this.Peek () == ';')
- this.Read ();
- state = readerState.propertyName;
+ if (nextCharIsValidCharStartName) {
+ token += ReadChar();
+ while (nextCharIsValidCharName)
+ token += ReadChar();
}
break;
}
}
-
- if (curlyBracketCount > 0)
- throwParserException ("Unexpected end of file");
}
- public override int Read ()
- {
- int tmp = base.Read ();
- char c = (char)tmp;
- if (c == '\n') {
- line++;
- column = 1;
- } else if (c == '\t')
- column += Interface.TabSize;
- else if (c != '\r')
- column++;
- return tmp;
- }
-
- void throwParserException(string message){
- throw new Exception (string.Format ("Style Reader Exception ({0},{1}): {2} in {3}.",
- line, column, message, resourceId));
- }
+// public override int Read ()
+// {
+// int tmp = base.Read ();
+// char c = (char)tmp;
+// if (c == '\n') {
+// line++;
+// column = 1;
+// } else if (c == '\t')
+// column += Interface.TabSize;
+// else if (c != '\r')
+// column++;
+// return tmp;
+// }
}
}
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