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/******************************************************************************
*
* $Id$
*
* Copyright (C) 1997-1999 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* All output generated with Doxygen is not covered by this license.
*
*/
%{
/*
* includes
*/
#include <stdio.h>
#include <iostream.h>
#include <assert.h>
#include <ctype.h>
#include "declinfo.h"
#include "util.h"
#define YY_NO_UNPUT
/* -----------------------------------------------------------------
*
* statics
*/
static const char * inputString;
static int inputPosition;
static QCString scope;
static QCString className;
static QCString classTempList;
static QCString funcTempList;
static QCString type;
static QCString name;
static QCString args;
static QCString tmpType;
static int sharpCount;
static bool classTempListFound;
static bool funcTempListFound;
static QCString exceptionString;
static void addType()
{
//printf("addType() type=`%s' scope=`%s' name=`%s'\n",
// type.data(),scope.data(),name.data());
if (name.isEmpty() && scope.isEmpty()) return;
if (!type.isNull()) type+=' ';
if (!scope.isEmpty()) type+=scope+"::";
type+=name;
scope.resize(0);
name.resize(0);
}
static void addTypeName()
{
//printf("addTypeName() type=`%s' scope=`%s' name=`%s'\n",
// type.data(),scope.data(),name.data());
if (name.isEmpty()) return;
if (!type.isNull()) type+=' ';
type+=name;
name.resize(0);
}
#define YY_NEVER_INTERACTIVE 1
/* -----------------------------------------------------------------
*/
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) result=yyread(buf,max_size);
static int yyread(char *buf,int max_size)
{
int c=0;
while( c < max_size && inputString[inputPosition] )
{
*buf = inputString[inputPosition++] ;
c++; buf++;
}
return c;
}
%}
B [ \t]
ID [a-z_A-Z][a-z_A-Z0-9]*
%option noyywrap
%x Start
%x Template
%x ReadArgs
%x Operator
%x FuncPtr
%x EndTemplate
%x StripTempArgs
%x SkipSharp
%x ReadExceptions
%%
<Start>"operator" { // operator rule must be before {ID} rule
name += yytext;
BEGIN(Operator);
}
<Start>(~{B}*)?{ID} {
addTypeName();
name += yytext;
}
<Start>{B}*"::"{B}* { // found a scope specifier
if (!scope.isEmpty())
{
scope+="::"+name; // add name to scope
}
else
{
scope = name.copy(); // scope becomes name
}
name.resize(0);
}
<Start>[*&]+ {
addType();
type+=yytext;
}
<Start>{B}+ {
addType();
}
<Start>{B}*"("{B}*"*" {
addType();
type+="(*";
}
<Start>{B}*")" {
type+=")";
}
<Start>{B}*"(" { // TODO: function pointers
args+="(";
BEGIN(ReadArgs);
}
<Start>{B}*"[" {
args+="[";
BEGIN(ReadArgs);
}
<Start>{B}*"<" {
name+="<";
sharpCount=0;
BEGIN(Template);
}
<Template>"<" {
name+="<";
sharpCount++;
}
<Template>">" {
name+=">";
if (sharpCount)
--sharpCount;
else
{
BEGIN(Start);
}
}
<Template>. {
name+=*yytext;
}
<Operator>{B}*"()"{B}*"<>"{B}*/"(" {
name+="() <>";
BEGIN(ReadArgs);
}
<Operator>{B}*"()"{B}*/"(" {
name+="()";
BEGIN(ReadArgs);
}
<Operator>[^(]*{B}*("<>"{B}*)?/"(" {
name+=yytext;
BEGIN(ReadArgs);
}
<ReadArgs>"throw"{B}*"(" {
exceptionString="throw(";
BEGIN(ReadExceptions);
}
<ReadArgs>. {
args+=*yytext;
}
<ReadExceptions>. {
exceptionString+=*yytext;
}
<*>.
%%
/*@ ----------------------------------------------------------------------------
*/
void parseFuncDecl(const QCString &decl,QCString &cl,QCString &ctl,QCString &t,
QCString &n,QCString &a,QCString &ftl,QCString &exc)
{
inputString = decl;
//printf("Input=`%s'\n",inputString);
if (inputString==0) return;
inputPosition = 0;
classTempListFound = FALSE;
funcTempListFound = FALSE;
scope.resize(0);
className.resize(0);
classTempList.resize(0);
funcTempList.resize(0);
name.resize(0);
type.resize(0);
args.resize(0);
exceptionString.resize(0);
// first we try to find the type, scope, name and arguments
declinfoYYrestart( declinfoYYin );
BEGIN( Start );
declinfoYYlex();
cl=scope.copy();
//printf("scope=`%s'\n",scope.data());
int il=0,ir=0;
if ((il=cl.find('<'))!=-1 && (ir=cl.findRev('>'))!=-1) // split up scope and template arguments
{
ctl=removeRedundantWhiteSpace(cl.mid(il,ir-il+1));
cl=cl.left(il)+cl.right(cl.length()-ir-1);
}
//printf("cl=`%s' ctl=`%s'\n",cl.data(),ctl.data());
n=removeRedundantWhiteSpace(name);
if ((il=n.find('<'))!=-1 && (ir=n.findRev('>'))!=-1)
// TODO: handle cases like where n="operator<< <T>"
{
ftl=removeRedundantWhiteSpace(n.right(n.length()-il));
n=n.left(il);
}
//ctl=classTempList.copy();
//ftl=funcTempList.copy();
t=removeRedundantWhiteSpace(type);
a=removeRedundantWhiteSpace(args);
exc=removeRedundantWhiteSpace(exceptionString);
if (t.length()>0 && t.at(t.length()-1)==')')
{
a.prepend(")");
t=t.left(t.length()-1);
}
//printf("type=`%s' class=`%s' name=`%s' args=`%s'\n",
// t.data(),cl.data(),n.data(),a.data());
return;
}
//extern "C" { // some bogus code to keep the compiler happy
// int declinfoYYwrap() { return 1 ; }
// void declinfoYYdummy() { yy_flex_realloc(0,0); }
//}
#if 0
void dumpDecl(const char *s)
{
QCString className;
QCString classTNames;
QCString type;
QCString name;
QCString args;
QCString funcTNames;
printf("-----------------------------------------\n");
parseFuncDecl(s,className,classTNames,type,name,args,funcTNames);
printf("type=`%s' class=`%s' classTempl=`%s' name=`%s' "
"funcTemplateNames=`%s' args=`%s'\n",
type.data(),className.data(),classTNames.data(),
name.data(),funcTNames.data(),args.data()
);
}
// some test code
int main()
{
dumpDecl("A < T > :: Value * A < T > :: getValue < S > ( const A < T > & a )");
dumpDecl("const A<T>::Value* A<T>::getValue<S>(const A<T>&a)");
dumpDecl("func()");
dumpDecl("friend void bla<>()");
dumpDecl("name< T > :: operator () (int bla)");
dumpDecl("name< T > :: operator << (int bla)");
dumpDecl("name< T > :: operator << <> (int bla)");
dumpDecl("className::func()");
dumpDecl("void ( * Name < T > :: bla ) ( int, char * )");
}
#endif
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