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diff --git a/util/token.cpp b/util/token.cpp
index 2ed1251a..ed803241 100644
--- a/util/token.cpp
+++ b/util/token.cpp
@@ -1,353 +1,360 @@
#include "token.h"
#include "token_exception.h"
#include <string>
#include <vector>
#include <ostream>
#include <sstream>
#include <iostream>
using namespace std;
Token::Token():
num_token(1),
parent( NULL ),
own(true){
name = "HEAD";
}
Token::Token( string tok, bool parse ):
num_token( 1 ),
parent( NULL ),
own(true){
/* legacy code, not used much */
if ( !parse ){
name = tok;
while ( name.find(' ' ) == 0 )
name.erase( 0, 1 );
// lowerCase( name );
return;
}
}
Token::Token(Token const & copy):
num_token(1),
parent(copy.parent),
own(false){
this->tokens = copy.tokens;
this->name = copy.name;
this->filename = copy.filename;
}
/* Dump token to the screen */
void Token::print( const string space ){
cout<<space<<"Token: "<< getName() << endl;
for ( signed int i = 0; i < numTokens(); i++ ){
Token * x = getToken( i );
x->print( space + " |--" );
}
}
void Token::toString( ostream & stream, const string & space ){
if ( numTokens() == -1 ){
stream << getName();
} else {
stream << endl;
stream << space << "(" << getName();
for ( signed int i = 0; i < numTokens(); i++ ){
Token * x = getToken( i );
stream << " ";
x->toString( stream, space + " " );
}
stream << ")";
}
}
/* helper function */
string Token::lowerCase( const string & s ){
string ret;
for ( unsigned int q = 0; q < s.length(); q++ ){
if ( s[q] >= 'A' && s[q] <= 'Z' ){
ret += s[q] - 'A' + 'a';
} else {
ret += s[q];
}
}
return ret;
}
/* Return next token and increment the internal position
* of the current token
*/
Token * Token::readToken(){
if ( num_token < tokens.size() ){
return tokens[ num_token++ ];
}
return NULL;
}
bool Token::hasTokens(){
return num_token < tokens.size();
}
vector<Token *> Token::findTokens(const string & path){
vector<Token *> found;
if (path == ""){
return found;
}
size_t find = path.find('/');
string self;
if (find == string::npos){
self = path;
} else {
self = path.substr(0, find);
}
if (*this == self){
if (find == string::npos){
found.push_back(this);
} else {
string rest = path.substr(find+1);
for (int i = 0; i < numTokens(); i++){
Token * next = getToken(i);
if (next != NULL){
vector<Token *> more = next->findTokens(rest);
found.insert(found.end(), more.begin(), more.end());
}
}
}
}
return found;
}
TokenMatcher Token::getMatcher(const std::string & subject){
TokenMatcher matcher(findTokens(subject));
return matcher;
}
Token * Token::findToken(const string & path){
vector<Token *> all = findTokens(path);
if (all.size() == 0){
return NULL;
}
return all[0];
}
/*
Token * Token::findToken(const string & path){
if (path == ""){
return NULL;
}
size_t find = path.find('/');
string self;
if (find == string::npos){
self = path;
} else {
self = path.substr(0, find);
}
if (*this == self){
if (find == string::npos){
return this;
} else {
for (int i = 0; i < numTokens(); i++){
Token * next = getToken(i);
if (next != NULL){
Token * ok = next->findToken(path.substr(find+1));
if (ok != NULL){
return ok;
}
}
}
}
}
return NULL;
}
*/
Token * Token::getToken( unsigned int n ) const {
int q = numTokens();
if ( q == -1 ) return NULL;
if ( n >= 0 && (signed int)n < q )
return tokens[n+1];
return NULL;
}
/* If the token has children then the name of this token
* is the name of the first child token.
* Otherwise, the name is this token's name
*/
const string & Token::getName() const {
if ( numTokens() != -1 ){
return tokens[0]->_getName();
}
// cout<<"No tokens!!"<<endl;
return name;
}
const Token * Token::getParent() const {
return this->parent;
}
const string Token::getLineage() const {
if ( getParent() != NULL ){
return getParent()->getLineage() + " -> " + getName();
}
return getName();
}
/* A token's identity is its name
*/
-bool Token::operator== ( const string rhs ){
+bool Token::operator== ( const string & rhs ){
return lowerCase( getName() ) == lowerCase( rhs );
}
-bool Token::operator!= ( const string rhs ){
+bool Token::operator!= ( const string & rhs ){
return !( *this == rhs );
}
/* extracting operators */
Token & Token::operator>>( Token * & rhs ) throw( TokenException ){
Token * x = readToken();
if ( x == NULL ){
throw TokenException( getFileName() + ": " + string("Tried to read a token from ") + this->getName() + string(" but there are no more elements") );
}
rhs = x;
return *this;
}
void Token::setFile( const string & s ){
filename = s;
}
const string Token::getFileName() const {
if ( parent ){
return parent->getFileName();
} else {
return filename;
}
}
Token & Token::operator>>( string & rhs ) throw( TokenException ){
Token * l = readToken();
if ( l == NULL ){
throw TokenException( getFileName() + ":" + string("Tried to read a string from '") + this->getLineage() + string("' but there no more elements") );
}
rhs = l->getName();
// rhs = getName();
return *this;
}
Token & Token::operator>>( int & rhs ) throw( TokenException ){
Token * l = readToken();
if ( l == NULL ){
throw TokenException( getFileName() + ": " + string("Tried to read an int from ") + this->getLineage() + string(" but there are no more elements") );
}
istringstream is ( l->getName() );
is >> rhs;
return *this;
}
Token & Token::operator>>( double & rhs ) throw( TokenException ){
Token * l = readToken();
if ( l == NULL ){
throw TokenException( getFileName() + ": " + string("Tried to read a double from ") + this->getLineage() + string(" but there no more elements") );
}
istringstream is ( l->getName() );
is >> rhs;
return *this;
}
Token & Token::operator>>( bool & rhs ) throw( TokenException ){
Token * l = readToken();
if ( l == NULL ){
throw TokenException( getFileName() + ": " + string("Tried to read a bool from ") + this->getLineage() + string(" but there no more elements") );
}
istringstream is ( l->getName() );
is >> rhs;
return *this;
}
void Token::addToken(Token * t) throw (TokenException){
if (!own){
throw TokenException("This token does not own its own tokens, so you cannot add tokens to it");
}
tokens.push_back( t );
}
/* put quotes around a string if there are spaces in it */
static string quoteify(const string & rhs){
if (rhs.find(' ') != string::npos){
return "\"" + rhs + "\"";
}
return rhs;
}
Token & Token::operator<<( const string rhs ){
Token * n = new Token(quoteify(rhs), false );
this->addToken(n);
return *this;
}
Token & Token::operator<<( const int rhs ){
ostringstream o;
o << rhs;
return *this << o.str();
}
Token & Token::operator<<( const double rhs ){
ostringstream o;
o << rhs;
return *this << o.str();
}
Token * Token::copy(){
Token * token = new Token();
token->filename = this->filename;
token->name = this->name;
for (vector<Token *>::iterator it = this->tokens.begin(); it != this->tokens.end(); it++){
Token * him = (*it)->copy();
him->setParent(token);
token->addToken(him);
}
return token;
}
/* Delete tokens that are commented.
* A commented token has a '!' character as the first
* character in the name, e.g:
* (!a_token (child_token 2))
*/
void Token::finalize(){
for ( vector< Token * >::iterator it = tokens.begin(); it != tokens.end(); ){
Token * t = *it;
if ( t->getName().find('!') == 0 ){
delete t;
it = tokens.erase( it );
} else {
t->finalize();
it++;
}
}
}
Token::~Token(){
if (own){
for ( vector< Token * >::iterator it = tokens.begin(); it != tokens.end(); it++ ){
delete *it;
}
}
}
+TokenMatcher::TokenMatcher(){
+ throw std::exception();
+}
TokenMatcher & TokenMatcher::operator=(const TokenMatcher & matcher){
+ tokens = matcher.tokens;
+ current = tokens.begin();
return *this;
}
-TokenMatcher::TokenMatcher(std::vector<Token*> tokens){
+TokenMatcher::TokenMatcher(std::vector<Token*> tokens):
+tokens(tokens){
+ current = tokens.begin();
}
diff --git a/util/token.h b/util/token.h
index 8451c8f7..f408c53c 100644
--- a/util/token.h
+++ b/util/token.h
@@ -1,139 +1,159 @@
#ifndef _paintown_token_h
#define _paintown_token_h
#include <string>
#include <vector>
#include <ostream>
#include "token_exception.h"
class TokenReader;
class Configuration;
class Token;
class TokenMatcher{
public:
- /* TODO */
template <typename X1>
bool match(X1 & obj1){
- return false;
+ if (current == tokens.end()){
+ return false;
+ }
+
+ Token * token = *current;
+ current++;
+ try{
+ *token >> obj1;
+ return true;
+ } catch (const TokenException & t){
+ return false;
+ }
}
+ /* TODO */
template <typename X1, typename X2>
bool match(X1 & obj1, X2 & obj2){
return false;
}
TokenMatcher & operator=(const TokenMatcher & matcher);
protected:
TokenMatcher(std::vector<Token*> tokens);
+ explicit TokenMatcher();
friend class Token;
+
+ std::vector<Token*> tokens;
+ std::vector<Token*>::iterator current;
};
/* Token:
* Basically a tree where each node stores a value in a string
* and can have 0 or more children
*/
class Token{
public:
typedef TokenMatcher Matcher;
Token(Token const & copy);
virtual ~Token();
void addToken(Token * t) throw (TokenException);
/*
inline const string & getName(){
return name;
}
*/
const std::string & getName() const;
const Token * getParent() const;
void setFile( const std::string & s );
const std::string getFileName() const;
const std::string getLineage() const;
void print( const std::string space );
void toString( std::ostream & stream, const std::string & space );
+ bool match(const std::string & subject){
+ TokenMatcher matcher = getMatcher(subject);
+ return false;
+ }
+
template <typename X>
bool match(const std::string & subject, X & obj){
TokenMatcher matcher = getMatcher(subject);
return matcher.match(obj);
}
TokenMatcher getMatcher(const std::string & subject);
Token * getToken( unsigned int n ) const;
/* xpath-esque searching for tokens
* '/' delimits tokens
* <literal> matches a token
*/
Token * findToken(const std::string & path);
/* find all tokens */
std::vector<Token *> findTokens(const std::string & path);
inline signed int numTokens() const {
return tokens.size() - 1;
}
inline const std::vector< Token * > * getTokens() const{
return &tokens;
}
inline void resetToken(){
num_token = 1;
}
/* returns a deep copy of this token. the parent field is set to null */
Token * copy();
Token * readToken();
bool hasTokens();
- bool operator== ( const std::string rhs );
- bool operator!= ( const std::string rhs );
+ bool operator== ( const std::string & rhs );
+ bool operator!= ( const std::string & rhs );
Token & operator>>( std::string & rhs ) throw( TokenException );
Token & operator>>( int & rhs ) throw( TokenException );
Token & operator>>( double & rhs ) throw( TokenException );
Token & operator>>( Token * & rhs ) throw( TokenException );
Token & operator>>( bool & rhs ) throw( TokenException );
protected:
/* Only TokenReader and Configuration can create and destroy a Token */
Token();
Token( std::string tok, bool parse = true );
friend class TokenReader;
friend class Configuration;
Token & operator<<( const std::string rhs );
Token & operator<<( const int rhs );
Token & operator<<( const double rhs );
virtual inline const std::string & _getName(){
return name;
}
virtual inline void setParent( const Token * const parent ){
this->parent = parent;
}
std::string lowerCase( const std::string & s );
void finalize();
unsigned int num_token;
std::vector< Token * > tokens;
std::string filename;
Token const * parent;
std::string name;
bool own;
};
#endif

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