You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
801 lines
19 KiB
801 lines
19 KiB
/**********************************************************************
|
|
**
|
|
** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of TQt Designer.
|
|
**
|
|
** This file may be used under the terms of the GNU General
|
|
** Public License versions 2.0 or 3.0 as published by the Free
|
|
** Software Foundation and appearing in the files LICENSE.GPL2
|
|
** and LICENSE.GPL3 included in the packaging of this file.
|
|
** Alternatively you may (at your option) use any later version
|
|
** of the GNU General Public License if such license has been
|
|
** publicly approved by Trolltech ASA (or its successors, if any)
|
|
** and the KDE Free TQt Foundation.
|
|
**
|
|
** Please review the following information to ensure GNU General
|
|
** Public Licensing requirements will be met:
|
|
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
|
|
** If you are unsure which license is appropriate for your use, please
|
|
** review the following information:
|
|
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
|
|
** or contact the sales department at sales@trolltech.com.
|
|
**
|
|
** Licensees holding valid TQt Commercial licenses may use this file in
|
|
** accordance with the TQt Commercial License Agreement provided with
|
|
** the Software.
|
|
**
|
|
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
|
|
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
|
|
** herein.
|
|
**
|
|
**********************************************************************/
|
|
|
|
#include <ntqregexp.h>
|
|
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
|
|
#include "yyreg.h"
|
|
|
|
/*
|
|
First comes the tokenizer. We don't need something that knows much
|
|
about C++. However, we need something that gives tokens from the
|
|
end of the file to the start, which is tricky.
|
|
|
|
If you are not familiar with hand-written tokenizers and parsers,
|
|
you might want to read other simpler parsers written in the same
|
|
style:
|
|
|
|
$(QTDIR)/src/tools/qregexp.cpp
|
|
$(QTDIR)/tools/inspector/cppparser.cpp
|
|
|
|
You might also want to read Section 2 in the Dragon Book.
|
|
*/
|
|
|
|
/*
|
|
Those are the tokens we are interested in. Tok_Something represents
|
|
any C++ token that does not interest us, but it's dangerous to
|
|
ignore tokens completely.
|
|
*/
|
|
enum { Tok_Boi, Tok_Ampersand, Tok_Aster, Tok_LeftParen, Tok_RightParen,
|
|
Tok_Equal, Tok_LeftBrace, Tok_RightBrace, Tok_Semicolon, Tok_Colon,
|
|
Tok_LeftAngle, Tok_RightAngle, Tok_Comma, Tok_Ellipsis, Tok_Gulbrandsen,
|
|
Tok_LeftBracket, Tok_RightBracket, Tok_Tilde, Tok_Something, Tok_Comment,
|
|
Tok_Ident,
|
|
|
|
Tok_char, Tok_const, Tok_double, Tok_int, Tok_long, Tok_operator,
|
|
Tok_short, Tok_signed, Tok_unsigned };
|
|
|
|
/*
|
|
The following variables store the lexical analyzer state. The best way
|
|
to understand them is to implement a function myGetToken() that calls
|
|
getToken(), to add some tqDebug() statements in there and then to
|
|
#define getToken() myGetToken().
|
|
*/
|
|
static TQString *yyIn; // the input stream
|
|
static int yyPos; // the position of the current token in yyIn
|
|
static int yyCurPos; // the position of the next lookahead character
|
|
static char *yyLexBuf; // the lexeme buffer
|
|
static const int YYLexBufSize = 65536; // big enough for long comments
|
|
static char *yyLex; // the lexeme itself (a pointer into yyLexBuf)
|
|
static int yyCh; // the lookbehind character
|
|
|
|
/*
|
|
Moves back to the previous character in the input stream and
|
|
updates the tokenizer state. This function is to be used only by
|
|
getToken(), which provides the right abstraction.
|
|
*/
|
|
static inline void readChar()
|
|
{
|
|
if ( yyCh == EOF )
|
|
return;
|
|
|
|
if ( yyLex > yyLexBuf )
|
|
*--yyLex = (char) yyCh;
|
|
|
|
if ( yyCurPos < 0 )
|
|
yyCh = EOF;
|
|
else
|
|
yyCh = (*yyIn)[yyCurPos].unicode();
|
|
yyCurPos--;
|
|
}
|
|
|
|
/*
|
|
Sets up the tokenizer.
|
|
*/
|
|
static void startTokenizer( const TQString& in )
|
|
{
|
|
yyIn = new TQString;
|
|
*yyIn = in;
|
|
yyPos = yyIn->length() - 1;
|
|
yyCurPos = yyPos;
|
|
yyLexBuf = new char[YYLexBufSize];
|
|
yyLex = yyLexBuf + YYLexBufSize - 1;
|
|
*yyLex = '\0';
|
|
yyCh = '\0';
|
|
readChar();
|
|
}
|
|
|
|
/*
|
|
Frees resources allocated by the tokenizer.
|
|
*/
|
|
static void stopTokenizer()
|
|
{
|
|
delete yyIn;
|
|
delete[] yyLexBuf;
|
|
yyLexBuf = 0;
|
|
}
|
|
|
|
/*
|
|
These two macros implement tquick-and-dirty hashing for telling
|
|
apart keywords fast.
|
|
*/
|
|
#define HASH( ch, len ) ( (ch) | ((len) << 8) )
|
|
#define CHECK( target ) \
|
|
if ( strcmp((target), yyLex) != 0 ) \
|
|
break;
|
|
|
|
/*
|
|
Returns the previous token in the abstract token stream. The parser
|
|
deals only with tokens, not with characters.
|
|
*/
|
|
static int getToken()
|
|
{
|
|
// why "+ 2"? try putting some tqDebug()'s and see
|
|
yyPos = yyCurPos + 2;
|
|
|
|
for ( ;; ) {
|
|
/*
|
|
See if the previous token is interesting. If it isn't, we
|
|
will loop anyway an go to the token before the previous
|
|
token, and so on.
|
|
*/
|
|
|
|
yyLex = yyLexBuf + YYLexBufSize - 1;
|
|
*yyLex = '\0';
|
|
|
|
if ( yyCh == EOF ) {
|
|
break;
|
|
} else if ( isspace(yyCh) ) {
|
|
bool metNL = FALSE;
|
|
do {
|
|
metNL = ( metNL || yyCh == '\n' );
|
|
readChar();
|
|
} while ( isspace(yyCh) );
|
|
|
|
if ( metNL ) {
|
|
/*
|
|
C++ style comments are tricky. In left-to-right
|
|
thinking, C++ comments start with "//" and end with
|
|
'\n'. In right-to-left thinking, they start with a
|
|
'\n'; but of course not every '\n' starts a comment.
|
|
|
|
When we meet the '\n', we look behind, on the same
|
|
line, for a "//", and if there is one we mess
|
|
around with the tokenizer state to effectively
|
|
ignore the comment. Beware of off-by-one and
|
|
off-by-two bugs when you modify this code by adding
|
|
tqDebug()'s here and there.
|
|
*/
|
|
if ( yyCurPos >= 0 ) {
|
|
int lineStart = yyIn->findRev( TQChar('\n'), yyCurPos ) + 1;
|
|
TQString line = yyIn->mid( lineStart,
|
|
yyCurPos - lineStart + 2 );
|
|
int commentStart = line.find( TQString("//") );
|
|
if ( commentStart != -1 ) {
|
|
yyCurPos = lineStart + commentStart - 1;
|
|
yyPos = yyCurPos + 2;
|
|
readChar();
|
|
}
|
|
}
|
|
}
|
|
} else if ( isalnum(yyCh) || yyCh == '_' ) {
|
|
do {
|
|
readChar();
|
|
} while ( isalnum(yyCh) || yyCh == '_' );
|
|
|
|
switch ( HASH(yyLex[0], strlen(yyLex)) ) {
|
|
case HASH( 'c', 4 ):
|
|
CHECK( "char" );
|
|
return Tok_char;
|
|
case HASH( 'c', 5 ):
|
|
CHECK( "const" );
|
|
return Tok_const;
|
|
case HASH( 'd', 6 ):
|
|
CHECK( "double" );
|
|
return Tok_double;
|
|
case HASH( 'i', 3 ):
|
|
CHECK( "int" );
|
|
return Tok_int;
|
|
case HASH( 'l', 4 ):
|
|
CHECK( "long" );
|
|
return Tok_long;
|
|
case HASH( 'o', 8 ):
|
|
CHECK( "operator" );
|
|
return Tok_operator;
|
|
case HASH( 's', 5 ):
|
|
CHECK( "short" );
|
|
return Tok_short;
|
|
case HASH( 's', 6 ):
|
|
CHECK( "signed" );
|
|
return Tok_signed;
|
|
case HASH( 'u', 8 ):
|
|
CHECK( "unsigned" );
|
|
return Tok_unsigned;
|
|
}
|
|
if ( isdigit(*yyLex) )
|
|
return Tok_Something;
|
|
else
|
|
return Tok_Ident;
|
|
} else {
|
|
int quote;
|
|
|
|
switch ( yyCh ) {
|
|
case '!':
|
|
case '%':
|
|
case '^':
|
|
case '+':
|
|
case '-':
|
|
case '?':
|
|
case '|':
|
|
readChar();
|
|
return Tok_Something;
|
|
case '"':
|
|
case '\'':
|
|
quote = yyCh;
|
|
readChar();
|
|
|
|
while ( yyCh != EOF && yyCh != '\n' ) {
|
|
if ( yyCh == quote ) {
|
|
readChar();
|
|
if ( yyCh != '\\' )
|
|
break;
|
|
} else {
|
|
readChar();
|
|
}
|
|
}
|
|
return Tok_Something;
|
|
case '&':
|
|
readChar();
|
|
if ( yyCh == '&' ) {
|
|
readChar();
|
|
return Tok_Something;
|
|
} else {
|
|
return Tok_Ampersand;
|
|
}
|
|
case '(':
|
|
readChar();
|
|
return Tok_LeftParen;
|
|
case ')':
|
|
readChar();
|
|
return Tok_RightParen;
|
|
case '*':
|
|
readChar();
|
|
return Tok_Aster;
|
|
case ',':
|
|
readChar();
|
|
return Tok_Comma;
|
|
case '.':
|
|
readChar();
|
|
if ( yyCh == '.' ) {
|
|
do {
|
|
readChar();
|
|
} while ( yyCh == '.' );
|
|
return Tok_Ellipsis;
|
|
} else {
|
|
return Tok_Something;
|
|
}
|
|
case '/':
|
|
/*
|
|
C-style comments are symmetric. C++-style comments
|
|
are handled elsewhere.
|
|
*/
|
|
readChar();
|
|
if ( yyCh == '*' ) {
|
|
bool metAster = FALSE;
|
|
bool metAsterSlash = FALSE;
|
|
|
|
readChar();
|
|
|
|
while ( !metAsterSlash ) {
|
|
if ( yyCh == EOF )
|
|
break;
|
|
|
|
if ( yyCh == '*' )
|
|
metAster = TRUE;
|
|
else if ( metAster && yyCh == '/' )
|
|
metAsterSlash = TRUE;
|
|
else
|
|
metAster = FALSE;
|
|
readChar();
|
|
}
|
|
break;
|
|
// return Tok_Comment;
|
|
} else {
|
|
return Tok_Something;
|
|
}
|
|
case ':':
|
|
readChar();
|
|
if ( yyCh == ':' ) {
|
|
readChar();
|
|
return Tok_Gulbrandsen;
|
|
} else {
|
|
return Tok_Colon;
|
|
}
|
|
case ';':
|
|
readChar();
|
|
return Tok_Semicolon;
|
|
case '<':
|
|
readChar();
|
|
return Tok_LeftAngle;
|
|
case '=':
|
|
readChar();
|
|
return Tok_Equal;
|
|
case '>':
|
|
readChar();
|
|
return Tok_RightAngle;
|
|
case '[':
|
|
readChar();
|
|
return Tok_LeftBracket;
|
|
case ']':
|
|
readChar();
|
|
return Tok_RightBracket;
|
|
case '{':
|
|
readChar();
|
|
return Tok_LeftBrace;
|
|
case '}':
|
|
readChar();
|
|
return Tok_RightBrace;
|
|
case '~':
|
|
readChar();
|
|
return Tok_Tilde;
|
|
default:
|
|
readChar();
|
|
}
|
|
}
|
|
}
|
|
return Tok_Boi;
|
|
}
|
|
|
|
/*
|
|
Follow the member function(s) of CppFunction.
|
|
*/
|
|
|
|
/*
|
|
Returns the prototype for the C++ function, without the semicolon.
|
|
*/
|
|
TQString CppFunction::prototype() const
|
|
{
|
|
TQString proto;
|
|
|
|
if ( !returnType().isEmpty() )
|
|
proto = returnType() + TQChar( ' ' );
|
|
proto += scopedName();
|
|
proto += TQChar( '(' );
|
|
if ( !parameterList().isEmpty() ) {
|
|
TQStringList::ConstIterator p = parameterList().begin();
|
|
proto += *p;
|
|
++p;
|
|
while ( p != parameterList().end() ) {
|
|
proto += TQString( ", " );
|
|
proto += *p;
|
|
++p;
|
|
}
|
|
}
|
|
proto += TQChar( ')' );
|
|
if ( isConst() )
|
|
proto += TQString( " const" );
|
|
return proto;
|
|
}
|
|
|
|
/*
|
|
The parser follows. We are not really parsing C++, just trying to
|
|
find the start and end of function definitions.
|
|
|
|
One important pitfall is that the parsed code needs not be valid.
|
|
Parsing from right to left helps cope with that, as explained in
|
|
comments below.
|
|
|
|
In the examples, we will use the symbol @ to stand for the position
|
|
in the token stream. In "int @ x ;", the lookahead token (yyTok) is
|
|
'int'.
|
|
*/
|
|
|
|
static int yyTok; // the current token
|
|
|
|
/*
|
|
Returns TRUE if thingy is a constructor or a destructor; otherwise
|
|
returns FALSE.
|
|
*/
|
|
static bool isCtorOrDtor( const TQString& thingy )
|
|
{
|
|
// e.g., Alpha<a>::Beta<Bar<b, c> >::~Beta
|
|
TQRegExp xtor( TQString(
|
|
"(?:([A-Z_a-z][0-9A-Z_a-z]*)" // class name
|
|
"(?:<(?:[^>]|<[^>]*>)*>)*" // template arguments
|
|
"::)+" // many in a row
|
|
"~?" // ctor or dtor?
|
|
"\\1") ); // function has same name as class
|
|
return xtor.exactMatch( thingy );
|
|
}
|
|
|
|
/*
|
|
Skips over any template arguments with balanced angle brackets, and
|
|
returns the skipped material as a string.
|
|
|
|
Before: TQMap < TQString , TQValueList < TQString > > @ m ;
|
|
After: TQMap @ < TQString , TQValueList < TQString > > m ;
|
|
*/
|
|
static TQString matchTemplateAngles()
|
|
{
|
|
TQString t;
|
|
|
|
if ( yyTok == Tok_RightAngle ) {
|
|
int depth = 0;
|
|
do {
|
|
if ( yyTok == Tok_RightAngle )
|
|
depth++;
|
|
else if ( yyTok == Tok_LeftAngle )
|
|
depth--;
|
|
t.prepend( yyLex );
|
|
yyTok = getToken();
|
|
} while ( depth > 0 && yyTok != Tok_Boi && yyTok != Tok_LeftBrace );
|
|
}
|
|
return t;
|
|
}
|
|
|
|
/*
|
|
Similar to matchTemplateAngles(), but for array brackets in parameter
|
|
data types (as in "int *argv[]").
|
|
*/
|
|
static TQString matchArrayBrackets()
|
|
{
|
|
TQString t;
|
|
|
|
while ( yyTok == Tok_RightBracket ) {
|
|
t.prepend( yyLex );
|
|
yyTok = getToken();
|
|
if ( yyTok == Tok_Something ) {
|
|
t.prepend( yyLex );
|
|
yyTok = getToken();
|
|
}
|
|
if ( yyTok != Tok_LeftBracket )
|
|
return TQString::null;
|
|
t.prepend( yyLex );
|
|
yyTok = getToken();
|
|
}
|
|
return t;
|
|
}
|
|
|
|
/*
|
|
Prepends prefix to *type. This operation is in theory trivial, but
|
|
for the spacing to look good, we have to do something. The original
|
|
spacing is lost as the input is tokenized.
|
|
*/
|
|
static void prependToType( TQString *type, const TQString& prefix )
|
|
{
|
|
if ( !type->isEmpty() && !prefix.isEmpty() ) {
|
|
TQChar left = prefix[(int) prefix.length() - 1];
|
|
TQChar right = (*type)[0];
|
|
|
|
if ( left.isLetter() &&
|
|
(right.isLetter() || right == TQChar('*') || right == TQChar('&')) )
|
|
type->prepend( TQChar(' ') );
|
|
}
|
|
type->prepend( prefix );
|
|
}
|
|
|
|
static bool isModifier( int tok )
|
|
{
|
|
return ( tok == Tok_signed || tok == Tok_unsigned ||
|
|
tok == Tok_short || tok == Tok_long );
|
|
}
|
|
|
|
/*
|
|
Parses a data type (backwards as usual) and returns a textual
|
|
representation of it.
|
|
*/
|
|
static TQString matchDataType()
|
|
{
|
|
TQString type;
|
|
|
|
while ( yyTok == Tok_Ampersand || yyTok == Tok_Aster ||
|
|
yyTok == Tok_const ) {
|
|
prependToType( &type, yyLex );
|
|
yyTok = getToken();
|
|
}
|
|
|
|
/*
|
|
This code is really hard to follow... sorry. The loop matches
|
|
Alpha::Beta::Gamma::...::Omega.
|
|
*/
|
|
for ( ;; ) {
|
|
bool modifierMet = FALSE;
|
|
|
|
prependToType( &type, matchTemplateAngles() );
|
|
|
|
if ( yyTok != Tok_Ident ) {
|
|
/*
|
|
People may write 'const unsigned short' or
|
|
'short unsigned const' or any other permutation.
|
|
*/
|
|
while ( yyTok == Tok_const || isModifier(yyTok) ) {
|
|
prependToType( &type, yyLex );
|
|
yyTok = getToken();
|
|
if ( yyTok != Tok_const )
|
|
modifierMet = TRUE;
|
|
}
|
|
|
|
if ( yyTok == Tok_Tilde ) {
|
|
prependToType( &type, yyLex );
|
|
yyTok = getToken();
|
|
}
|
|
}
|
|
|
|
if ( !modifierMet ) {
|
|
if ( yyTok == Tok_Ellipsis || yyTok == Tok_Ident ||
|
|
yyTok == Tok_char || yyTok == Tok_int ||
|
|
yyTok == Tok_double ) {
|
|
prependToType( &type, yyLex );
|
|
yyTok = getToken();
|
|
} else {
|
|
return TQString::null;
|
|
}
|
|
} else if ( yyTok == Tok_int || yyTok == Tok_char ||
|
|
yyTok == Tok_double ) {
|
|
prependToType( &type, yyLex );
|
|
yyTok = getToken();
|
|
}
|
|
|
|
while ( yyTok == Tok_const || isModifier(yyTok) ) {
|
|
prependToType( &type, yyLex );
|
|
yyTok = getToken();
|
|
}
|
|
|
|
if ( yyTok == Tok_Gulbrandsen ) {
|
|
prependToType( &type, yyLex );
|
|
yyTok = getToken();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
return type;
|
|
}
|
|
|
|
/*
|
|
Parses a function prototype (without the semicolon) and returns an
|
|
object that stores information about this function.
|
|
*/
|
|
static CppFunction matchFunctionPrototype( bool stripParamNames )
|
|
{
|
|
CppFunction func;
|
|
#if 0
|
|
TQString documentation;
|
|
#endif
|
|
TQString returnType;
|
|
TQString scopedName;
|
|
TQStringList params;
|
|
TQString qualifier;
|
|
bool cnst = FALSE;
|
|
|
|
if ( yyTok == Tok_const ) {
|
|
cnst = TRUE;
|
|
yyTok = getToken();
|
|
}
|
|
|
|
if ( yyTok != Tok_RightParen )
|
|
return func;
|
|
yyTok = getToken();
|
|
|
|
if ( yyTok != Tok_LeftParen ) {
|
|
for ( ;; ) {
|
|
TQString brackets = matchArrayBrackets();
|
|
TQString name;
|
|
if ( yyTok == Tok_Ident ) {
|
|
name = yyLex;
|
|
yyTok = getToken();
|
|
}
|
|
TQString type = matchDataType();
|
|
|
|
if ( type.isEmpty() ) {
|
|
if ( name.isEmpty() )
|
|
return func;
|
|
type = name;
|
|
name = TQString::null;
|
|
}
|
|
if ( stripParamNames )
|
|
name = TQString::null;
|
|
|
|
TQString param = type + TQChar( ' ' ) + name + brackets;
|
|
params.prepend( param.stripWhiteSpace() );
|
|
|
|
if ( yyTok != Tok_Comma )
|
|
break;
|
|
yyTok = getToken();
|
|
}
|
|
if ( yyTok != Tok_LeftParen )
|
|
return func;
|
|
}
|
|
yyTok = getToken();
|
|
|
|
for ( ;; ) {
|
|
scopedName.prepend( matchTemplateAngles() );
|
|
|
|
if ( yyTok != Tok_Ident ) {
|
|
// the operator keyword should be close
|
|
int i = 0;
|
|
while ( i < 4 && yyTok != Tok_operator ) {
|
|
scopedName.prepend( yyLex );
|
|
i++;
|
|
}
|
|
if ( yyTok != Tok_operator )
|
|
return func;
|
|
}
|
|
scopedName.prepend( yyLex );
|
|
yyTok = getToken();
|
|
|
|
if ( yyTok != Tok_Gulbrandsen )
|
|
break;
|
|
scopedName.prepend( yyLex );
|
|
yyTok = getToken();
|
|
}
|
|
|
|
if ( !isCtorOrDtor(scopedName) ) {
|
|
returnType = matchDataType();
|
|
if ( returnType.isEmpty() )
|
|
return func;
|
|
}
|
|
|
|
/*
|
|
The documentation feature is unused so far, since we cannot
|
|
really distinguist between a normal comment between two
|
|
functions and one that relates to the following function. One
|
|
good heuristic is to assume that a comment immediately followed
|
|
by a function with no blank line in between relates to the
|
|
function, but there's no easy way to find that out with a
|
|
tokenizer.
|
|
*/
|
|
#if 0
|
|
if ( yyTok == Tok_Comment ) {
|
|
documentation = yyLex;
|
|
yyTok = getToken();
|
|
}
|
|
|
|
func.setDocumentation( documentation );
|
|
#endif
|
|
func.setReturnType( returnType );
|
|
func.setScopedName( scopedName );
|
|
func.setParameterList( params );
|
|
func.setConst( cnst );
|
|
return func;
|
|
}
|
|
|
|
/*
|
|
Try to set the body. It's not sufficient to call
|
|
func->setBody(somewhatBody), as the somewhatBody might be too large.
|
|
Case in point:
|
|
|
|
void foo()
|
|
{
|
|
printf( "Hello" );
|
|
}
|
|
|
|
int n;
|
|
|
|
void bar()
|
|
{
|
|
printf( " world!\n" );
|
|
}
|
|
|
|
The parser first finds bar(). Then it finds "void foo() {" and
|
|
naively expects the body to extend up to "void bar()". This
|
|
function's job is to count braces and make sure "int n;" is not
|
|
counted as part of the body.
|
|
|
|
Cases where the closing brace of the body is missing require no
|
|
special processing.
|
|
*/
|
|
static void setBody( CppFunction *func, const TQString& somewhatBody )
|
|
{
|
|
TQString body = somewhatBody;
|
|
|
|
int braceDepth = 0;
|
|
int i = 0;
|
|
while ( i < (int) body.length() ) {
|
|
if ( body[i] == TQChar('{') ) {
|
|
braceDepth++;
|
|
} else if ( body[i] == TQChar('}') ) {
|
|
braceDepth--;
|
|
if ( braceDepth == 0 ) {
|
|
body.truncate( i + 1 );
|
|
break;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
|
|
func->setBody( body );
|
|
}
|
|
|
|
/*
|
|
Parses a whole C++ file, looking for function definitions. Case in
|
|
point:
|
|
|
|
void foo()
|
|
{
|
|
printf( "Hello" );
|
|
|
|
void bar()
|
|
{
|
|
printf( " world!\n" );
|
|
}
|
|
|
|
The parser looks for left braces and tries to parse a function
|
|
prototype backwards. First it finds "void bar() {". Then it works
|
|
up and finds "void foo() {".
|
|
*/
|
|
static void matchTranslationUnit( TQValueList<CppFunction> *flist )
|
|
{
|
|
int endBody = -1;
|
|
int startBody;
|
|
|
|
for ( ;; ) {
|
|
if ( endBody == -1 )
|
|
endBody = yyPos;
|
|
|
|
while ( yyTok != Tok_Boi && yyTok != Tok_LeftBrace )
|
|
yyTok = getToken();
|
|
if ( yyTok == Tok_Boi )
|
|
break;
|
|
|
|
// found a left brace
|
|
yyTok = getToken();
|
|
startBody = yyPos;
|
|
CppFunction func = matchFunctionPrototype( FALSE );
|
|
if ( !func.scopedName().isEmpty() ) {
|
|
TQString body = yyIn->mid( startBody, endBody - startBody );
|
|
setBody( &func, body );
|
|
body = func.body(); // setBody() can change the body
|
|
|
|
/*
|
|
Compute important line numbers.
|
|
*/
|
|
int functionStartLineNo = 1 + TQConstString( yyIn->unicode(), yyPos )
|
|
.string().contains( TQChar('\n') );
|
|
int startLineNo = functionStartLineNo +
|
|
TQConstString( yyIn->unicode() + yyPos, startBody - yyPos )
|
|
.string().contains( TQChar('\n') );
|
|
int endLineNo = startLineNo + body.contains( TQChar('\n') );
|
|
|
|
func.setLineNums( functionStartLineNo, startLineNo, endLineNo );
|
|
flist->prepend( func );
|
|
endBody = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
Extracts C++ function from source code and put them in a list.
|
|
*/
|
|
void extractCppFunctions( const TQString& code, TQValueList<CppFunction> *flist )
|
|
{
|
|
startTokenizer( code );
|
|
yyTok = getToken();
|
|
matchTranslationUnit( flist );
|
|
stopTokenizer();
|
|
}
|
|
|
|
/*
|
|
Returns the prototype with the parameter names removed.
|
|
*/
|
|
TQString canonicalCppProto( const TQString& proto )
|
|
{
|
|
startTokenizer( proto );
|
|
yyTok = getToken();
|
|
CppFunction func = matchFunctionPrototype( TRUE );
|
|
stopTokenizer();
|
|
return func.prototype();
|
|
}
|