Implemented some more parts of the CSS parser. I added some more
comments in to help with implementation later. I have reached a point
where I can no longer properly implement the functions since I am
currently unable to throughly test. I will come back to this and finish
the implementation soon.
2005-12-19 Lillian Angel <[EMAIL PROTECTED]>
* javax/swing/text/html/CSSParser.java
(CSSParser): Initialized tokenBuffer with some
arbitrary size. This makes append much more efficent since
a new array will not been created with each append.
(append): Fixed append to create a new larger array if
needed.
(nextToken): Finished implemented. Should decrease the
tokenBufferLength if an identifier was read. This way " and '
are not added to the buffer.
(parse): Implemented to call the appropriate parsing function
based on parameter.
(getNextStatement): Implemented.
(parseAtRule): Added some helpful comments for implementing.
(parseRuleSet): Likewise.
(parseIdentifiers): Likewise.
(readComment): Likewise.
* javax/swing/text/html/StyleSheet.java
(addRule): Implemented.
(loadRules): Implemented.
(importStyleSheet): Removed implementation for now. It causes
a loop. Added FIXME
(startRule): Implemented.
(handleProperty): Implemented.
(addSelector): Implemented.
Index: ChangeLog
===================================================================
RCS file: /cvsroot/classpath/classpath/ChangeLog,v
retrieving revision 1.5866
diff -u -r1.5866 ChangeLog
--- ChangeLog 20 Dec 2005 15:59:45 -0000 1.5866
+++ ChangeLog 20 Dec 2005 18:54:07 -0000
@@ -1,5 +1,32 @@
2005-12-19 Lillian Angel <[EMAIL PROTECTED]>
+ * javax/swing/text/html/CSSParser.java
+ (CSSParser): Initialized tokenBuffer with some
+ arbitrary size. This makes append much more efficent since
+ a new array will not been created with each append.
+ (append): Fixed append to create a new larger array if
+ needed.
+ (nextToken): Finished implemented. Should decrease the
+ tokenBufferLength if an identifier was read. This way " and '
+ are not added to the buffer.
+ (parse): Implemented to call the appropriate parsing function
+ based on parameter.
+ (getNextStatement): Implemented.
+ (parseAtRule): Added some helpful comments for implementing.
+ (parseRuleSet): Likewise.
+ (parseIdentifiers): Likewise.
+ (readComment): Likewise.
+ * javax/swing/text/html/StyleSheet.java
+ (addRule): Implemented.
+ (loadRules): Implemented.
+ (importStyleSheet): Removed implementation for now. It causes
+ a loop. Added FIXME
+ (startRule): Implemented.
+ (handleProperty): Implemented.
+ (addSelector): Implemented.
+
+2005-12-19 Lillian Angel <[EMAIL PROTECTED]>
+
* javax/swing/text/html/BlockView.java
(getStyleSheet): Implemented.
* javax/swing/text/html/CSSParser.java: New private class,
Index: javax/swing/text/html/CSSParser.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/text/html/CSSParser.java,v
retrieving revision 1.1
diff -u -r1.1 CSSParser.java
--- javax/swing/text/html/CSSParser.java 20 Dec 2005 15:59:45 -0000 1.1
+++ javax/swing/text/html/CSSParser.java 20 Dec 2005 18:54:09 -0000
@@ -149,7 +149,8 @@
/**
* The character mapping in the document.
*/
- private static final char[] charMapping = null; // FIXME
+ // FIXME: What is this used for?
+ private static final char[] charMapping = null;
/**
* Set to true if one character has been read ahead.
@@ -162,7 +163,7 @@
private int pushedChar;
/**
- * Temporary place to hold identifiers.
+ * Temporary place to hold identifiers.
*/
private StringBuffer unitBuffer;
@@ -212,6 +213,7 @@
CSSParser()
{
unitBuffer = new StringBuffer();
+ tokenBuffer = new char[10];
}
/**
@@ -221,12 +223,18 @@
*/
private void append(char c)
{
- char[] temp = new char[tokenBufferLength + 1];
- if (tokenBuffer != null)
- System.arraycopy(tokenBuffer, 0, temp, 0, tokenBufferLength);
- temp[tokenBufferLength] = c;
+ if (tokenBuffer.length >= tokenBufferLength)
+ {
+ char[] temp = new char[tokenBufferLength * 2];
+ if (tokenBuffer != null)
+ System.arraycopy(tokenBuffer, 0, temp, 0, tokenBufferLength);
+
+ temp[tokenBufferLength] = c;
+ tokenBuffer = temp;
+ }
+ else
+ tokenBuffer[tokenBufferLength] = c;
tokenBufferLength++;
- tokenBuffer = temp;
}
/**
@@ -244,10 +252,12 @@
switch (next)
{
case '\"':
- // FIXME: Not Implemented
+ if (tokenBufferLength > 0)
+ tokenBufferLength--;
return IDENTIFIER;
case '\'':
- // FIXME: Not Implemented
+ if (tokenBufferLength > 0)
+ tokenBufferLength--;
return IDENTIFIER;
case '(':
return PAREN_OPEN;
@@ -301,8 +311,18 @@
{
this.reader = reader;
this.callback = callback;
- // call getNextStatement
- // FIXME: Not fully implemented
+
+ try
+ {
+ if (!parsingDeclaration)
+ while(getNextStatement());
+ else
+ parseDeclarationBlock();
+ }
+ catch (IOException ioe)
+ {
+ // Nothing to do here.
+ }
}
/**
@@ -329,16 +349,35 @@
/**
* Gets the next statement, returning false if the end is reached.
- * A statement is either an @ rule, or a ruleset.
+ * A statement is either an At-rule, or a ruleset.
*
- * @return the next statement
+ * @return false if the end is reached
* @throws IOException - any i/o error from the reader
*/
private boolean getNextStatement() throws IOException
{
- // get next set and parseRuleSet
- // FIXME: Not implemented
- return false;
+ int c = nextToken((char) 0);
+ switch (c)
+ {
+ case PAREN_OPEN:
+ case BRACE_OPEN:
+ case BRACKET_OPEN:
+ parseTillClosed(c);
+ break;
+ case BRACKET_CLOSE:
+ case BRACE_CLOSE:
+ case PAREN_CLOSE:
+ throw new IOException("Not a proper statement.");
+ case IDENTIFIER:
+ if (tokenBuffer[0] == ('@'))
+ parseAtRule();
+ else
+ parseRuleSet();
+ break;
+ case END:
+ return false;
+ }
+ return true;
}
/**
@@ -347,8 +386,18 @@
* @throws IOException - any i/o error from the reader
*/
private void parseAtRule() throws IOException
- {
+ {
+ // An At-Rule begins with the "@" character followed immediately by a keyword.
+ // Following the keyword separated by a space is an At-rule statement appropriate
+ // to the At-keyword used. If the At-Rule is a simple declarative statement
+ // (charset, import, fontdef), it is terminated by a semi-colon (";".)
+ // If the At-Rule is a conditional or informative statement (media, page, font-face),
+ // it is followed by optional arguments and then a style declaration block inside matching
+ // curly braces ("{", "}".) At-Rules are sometimes nestable, depending on the context.
+ // If any part of an At-Rule is not understood, it should be ignored.
+
// FIXME: Not Implemented
+ // call handleimport
}
/**
@@ -360,6 +409,9 @@
private void parseRuleSet() throws IOException
{
// call parseDeclarationBlock
+ // call parse selectors
+ // call parse identifiers
+ // call startrule/endrule
// FIXME: Not Implemented
}
@@ -373,6 +425,7 @@
private boolean parseSelectors() throws IOException
{
// FIXME: Not Implemented
+ // call handleselector
return false;
}
@@ -414,6 +467,7 @@
private int parseIdentifiers(char c, boolean wantsBlocks) throws IOException
{
// FIXME: Not implemented
+ // call handleproperty?
return 0;
}
@@ -461,7 +515,8 @@
*/
private void readComment() throws IOException
{
- // FIXME: Not Implemented
+ // Should ignore comments. Read until end of comment.
+ // FIXME: Not implemented
}
/**
Index: javax/swing/text/html/StyleSheet.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/text/html/StyleSheet.java,v
retrieving revision 1.4
diff -u -r1.4 StyleSheet.java
--- javax/swing/text/html/StyleSheet.java 20 Dec 2005 15:59:45 -0000 1.4
+++ javax/swing/text/html/StyleSheet.java 20 Dec 2005 18:54:09 -0000
@@ -42,9 +42,7 @@
import java.awt.Font;
import java.awt.Graphics;
-import java.io.BufferedReader;
import java.io.IOException;
-import java.io.InputStreamReader;
import java.io.Reader;
import java.io.Serializable;
import java.io.StringReader;
@@ -140,8 +138,15 @@
*/
public void addRule(String rule)
{
- // call cssparser.parse
- // FIXME: Not implemented.
+ CssParser cp = new CssParser();
+ try
+ {
+ cp.parse(base, new StringReader(rule), false, false);
+ }
+ catch (IOException io)
+ {
+ // Do nothing here.
+ }
}
/**
@@ -171,8 +176,8 @@
*/
public void loadRules(Reader in, URL ref) throws IOException
{
- // FIXME: Not implemented.
- // call parse
+ CssParser cp = new CssParser();
+ cp.parse(ref, in, false, false);
}
/**
@@ -268,16 +273,7 @@
*/
public void importStyleSheet(URL url)
{
- try
- {
- // FIXME: Need to make sure url points to a valid CSS document.
- loadRules(new BufferedReader(new InputStreamReader(url.openStream())),
- url);
- }
- catch (IOException ioe)
- {
- // Do nothing here.
- }
+ // FIXME: Not implemented
}
/**
@@ -889,7 +885,7 @@
*/
public void startRule()
{
- // FIXME: Not implemented
+ addSelector();
}
/**
@@ -920,6 +916,7 @@
{
// FIXME: Not implemented
// add rules
+ propertyName = null;
}
/**
@@ -927,12 +924,14 @@
*/
private void addSelector()
{
- Object[] selTokens = selectorTokens.toArray();
- int length = selTokens.length;
- Object[] sel = new Object[length];
- System.arraycopy(selTokens, 0, sel, 0, length);
- selectors.add(sel);
- selectorTokens.clear();
+ int length = selectorTokens.size();
+ if (length > 0)
+ {
+ Object[] sel = new Object[length];
+ System.arraycopy(selectorTokens.toArray(), 0, sel, 0, length);
+ selectors.add(sel);
+ selectorTokens.clear();
+ }
}
}
}
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