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Scanner2 - some more minor fixes. I'm getting close to the trilogy...

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This commit is contained in:
Doug Schaefer 2004-06-22 21:03:53 +00:00
parent d75195c520
commit 112cf2a908
2 changed files with 55 additions and 19 deletions
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8
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/scanner2/Scanner2Test.java
View file

@ -1668,4 +1668,12 @@ public class Scanner2Test extends BaseScanner2Test
validateIdentifier("hithere");
validateEOF();
}
public void testSlashes() throws Exception {
initializeScanner("__q / __n");
validateIdentifier("__q");
validateToken(IToken.tDIV);
validateIdentifier("__n");
validateEOF();
}
}

66
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java
View file

@ -10,6 +10,9 @@
******************************************************************************/
package org.eclipse.cdt.internal.core.parser.scanner2;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
@ -70,6 +73,14 @@ public class Scanner2 implements IScanner, IScannerData {
private static String[] emptyStringArray = new String[0];
private static char[] emptyCharArray = new char[0];
private static EndOfFileException EOF = new EndOfFileException();
PrintStream dlog;
{
try {
dlog = new PrintStream(new FileOutputStream("C:/dlog.txt"));
} catch (FileNotFoundException e) {
}
}
public Scanner2(CodeReader reader,
IScannerInfo info,
@ -954,10 +965,10 @@ public class Scanner2 implements IScanner, IScannerData {
skipToNewLine();
len = bufferPos[bufferStackPos] - start;
if (expressionEvaluator.evaluate(buffer, start, len, definitions) == 0) {
//System.out.println("#if <FALSE> " + new String(buffer,start+1,len-1));
dlog.println("#if <FALSE> " + new String(buffer,start+1,len-1));
skipOverConditionalCode(true);
} //else
//System.out.println("#if <TRUE> " + new String(buffer,start+1,len-1));
} else
dlog.println("#if <TRUE> " + new String(buffer,start+1,len-1));
return;
case ppElse:
case ppElif:
@ -1027,7 +1038,7 @@ public class Scanner2 implements IScanner, IScannerData {
CodeReader reader = null;
if (local) {
// TODO obviously...
}
// iterate through the include paths
@ -1044,14 +1055,14 @@ public class Scanner2 implements IScanner, IScannerData {
}
} else {
reader = (CodeReader)fileCache.get(finalPath);
if (reader == null) {
if (reader == null)
reader = ScannerUtility.createReaderDuple( finalPath, requestor, getWorkingCopies() );
if (reader != null) {
if (reader.filename != null)
fileCache.put(reader.filename, reader);
pushContext(reader.buffer, reader);
return;
}
if (reader != null) {
if (reader.filename != null)
fileCache.put(reader.filename, reader);
dlog.println("#include <" + finalPath + ">");
pushContext(reader.buffer, reader);
return;
}
}
}
@ -1093,7 +1104,7 @@ public class Scanner2 implements IScanner, IScannerData {
--bufferPos[bufferStackPos];
char[] name = new char[idlen];
System.arraycopy(buffer, idstart, name, 0, idlen);
//System.out.println("#define " + new String(buffer, idstart, idlen));
dlog.println("#define " + new String(buffer, idstart, idlen));
// Now check for function style macro to store the arguments
char[][] arglist = null;
@ -1103,6 +1114,7 @@ public class Scanner2 implements IScanner, IScannerData {
arglist = new char[4][];
int currarg = -1;
while (bufferPos[bufferStackPos] < limit) {
pos = bufferPos[bufferStackPos];
skipOverWhiteSpace();
if (++bufferPos[bufferStackPos] >= limit)
return;
@ -1111,6 +1123,14 @@ public class Scanner2 implements IScanner, IScannerData {
break;
} else if (c == ',') {
continue;
} else if (c == '.'
&& pos + 1 < limit && buffer[pos + 1] == '.'
&& pos + 2 < limit && buffer[pos + 2] == '.') {
// varargs
// TODO - something better
bufferPos[bufferStackPos] += 2;
arglist[++currarg] = "...".toCharArray();
continue;
} else if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_')) {
// yuck
skipToNewLine();
@ -1189,6 +1209,7 @@ public class Scanner2 implements IScanner, IScannerData {
skipToNewLine();
definitions.remove(buffer, idstart, idlen);
dlog.println("#undef " + new String(buffer, idstart, idlen));
}
private void handlePPIfdef(boolean positive) {
@ -1224,14 +1245,14 @@ public class Scanner2 implements IScanner, IScannerData {
skipToNewLine();
if ((definitions.get(buffer, idstart, idlen) != null) == positive) {
//System.out.println((positive ? "#ifdef" : "#ifndef")
// + " <TRUE> " + new String(buffer, idstart, idlen));
dlog.println((positive ? "#ifdef" : "#ifndef")
+ " <TRUE> " + new String(buffer, idstart, idlen));
// continue on
return;
}
//System.out.println((positive ? "#ifdef" : "#ifndef")
// + " <FALSE> " + new String(buffer, idstart, idlen));
dlog.println((positive ? "#ifdef" : "#ifndef")
+ " <FALSE> " + new String(buffer, idstart, idlen));
// skip over this group
skipOverConditionalCode(true);
}
@ -1344,15 +1365,17 @@ public class Scanner2 implements IScanner, IScannerData {
break;
}
}
continue;
}
}
continue;
break;
case '\\':
if (pos + 1 < limit && buffer[pos + 1] == '\n') {
// \n is a whitespace
++bufferPos[bufferStackPos];
continue;
}
break;
}
// fell out of switch without continuing, we're done
@ -1418,6 +1441,8 @@ public class Scanner2 implements IScanner, IScannerData {
case ',':
case ')':
case '(':
case '<':
case '>':
--bufferPos[bufferStackPos];
return;
case '\\':
@ -1558,14 +1583,17 @@ public class Scanner2 implements IScanner, IScannerData {
if (++bufferPos[bufferStackPos] >= limit)
break;
c = buffer[bufferPos[bufferStackPos]];
if (c == '(')
if (c == '(' || c == '<')
++argparens;
else if (c == '>')
--argparens;
else if (c == ')') {
if (argparens == 0)
break;
--argparens;
} else if (c == ',')
break;
if (argparens == 0)
break;
}
char[] arg = emptyCharArray;