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moved regular expression classes into a separate namespace

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This commit is contained in:
mr-alice 2016-09-13 12:05:22 +02:00
parent e9418bb5c6
commit a2e34f9cc6
25 changed files with 439 additions and 426 deletions
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2
libretroshare/src/file_sharing/dir_hierarchy.cc
View file

@ -595,7 +595,7 @@ bool InternalFileHierarchyStorage::searchHash(const RsFileHash& hash,std::list<D
return false;
}
int InternalFileHierarchyStorage::searchBoolExp(Expression * exp, std::list<DirectoryStorage::EntryIndex> &results) const
int InternalFileHierarchyStorage::searchBoolExp(RsRegularExpression::Expression * exp, std::list<DirectoryStorage::EntryIndex> &results) const
{
#ifdef TODO
for(std::map<RsFileHash,DirectoryStorage::EntryIndex>::const_iterator it(mFileHashes.begin());it!=mFileHashes.end();++it)

2
libretroshare/src/file_sharing/dir_hierarchy.h
View file

@ -140,7 +140,7 @@ public:
// search. SearchHash is logarithmic. The other two are linear.
bool searchHash(const RsFileHash& hash,std::list<DirectoryStorage::EntryIndex>& results);
int searchBoolExp(Expression * exp, std::list<DirectoryStorage::EntryIndex> &results) const ;
int searchBoolExp(RsRegularExpression::Expression * exp, std::list<DirectoryStorage::EntryIndex> &results) const ;
int searchTerms(const std::list<std::string>& terms, std::list<DirectoryStorage::EntryIndex> &results) const ;
bool check(std::string& error_string) const ;// checks consistency of storage.

2
libretroshare/src/file_sharing/directory_storage.cc
View file

@ -203,7 +203,7 @@ int DirectoryStorage::searchTerms(const std::list<std::string>& terms, std::list
RS_STACK_MUTEX(mDirStorageMtx) ;
return mFileHierarchy->searchTerms(terms,results);
}
int DirectoryStorage::searchBoolExp(Expression * exp, std::list<EntryIndex> &results) const
int DirectoryStorage::searchBoolExp(RsRegularExpression::Expression * exp, std::list<EntryIndex> &results) const
{
RS_STACK_MUTEX(mDirStorageMtx) ;
return mFileHierarchy->searchBoolExp(exp,results);

2
libretroshare/src/file_sharing/directory_storage.h
View file

@ -50,7 +50,7 @@ class DirectoryStorage
void save() const ;
virtual int searchTerms(const std::list<std::string>& terms, std::list<EntryIndex> &results) const ;
virtual int searchBoolExp(Expression * exp, std::list<EntryIndex> &results) const ;
virtual int searchBoolExp(RsRegularExpression::Expression * exp, std::list<EntryIndex> &results) const ;
virtual int searchHash(const RsFileHash& hash, std::list<EntryIndex> &results) const ;
bool getDirUpdateTS(EntryIndex index,time_t& recurs_max_modf_TS,time_t& local_update_TS) ;

2
libretroshare/src/file_sharing/p3filelists.cc
View file

@ -814,7 +814,7 @@ int p3FileDatabase::SearchKeywords(const std::list<std::string>& keywords, std::
return filterResults(firesults,results,flags,client_peer_id) ;
}
int p3FileDatabase::SearchBoolExp(Expression *exp, std::list<DirDetails>& results,FileSearchFlags flags,const RsPeerId& client_peer_id) const
int p3FileDatabase::SearchBoolExp(RsRegularExpression::Expression *exp, std::list<DirDetails>& results,FileSearchFlags flags,const RsPeerId& client_peer_id) const
{
RS_STACK_MUTEX(mFLSMtx) ;

2
libretroshare/src/file_sharing/p3filelists.h
View file

@ -103,7 +103,7 @@ class p3FileDatabase: public p3Service, public p3Config, public ftSearch //, pub
virtual bool findLocalFile(const RsFileHash& hash,FileSearchFlags flags,const RsPeerId& peer_id, std::string &fullpath, uint64_t &size,FileStorageFlags& storage_flags,std::list<std::string>& parent_groups) const;
virtual int SearchKeywords(const std::list<std::string>& keywords, std::list<DirDetails>& results,FileSearchFlags flags,const RsPeerId& peer_id) ;
virtual int SearchBoolExp(Expression *exp, std::list<DirDetails>& results,FileSearchFlags flags,const RsPeerId& peer_id) const ;
virtual int SearchBoolExp(RsRegularExpression::Expression *exp, std::list<DirDetails>& results,FileSearchFlags flags,const RsPeerId& peer_id) const ;
// ftSearch
virtual bool search(const RsFileHash &hash, FileSearchFlags hintflags, FileInfo &info) const;

331
libretroshare/src/file_sharing/rsexpr.cc
View file

@ -26,6 +26,7 @@
#include "dbase/findex.h"
#include "retroshare/rsexpr.h"
#include "retroshare/rstypes.h"
#include <algorithm>
#include <functional>
@ -34,33 +35,35 @@ eval functions of relational expressions.
******************************************************************************************/
namespace RsRegularExpression
{
template<>
void RelExpression<int>::linearize(LinearizedExpression& e) const
{
e._ints.push_back(Op) ;
e._ints.push_back(LowerValue) ;
e._ints.push_back(HigherValue) ;
e._ints.push_back(Op) ;
e._ints.push_back(LowerValue) ;
e._ints.push_back(HigherValue) ;
}
bool DateExpression::eval(FileEntry *file)
bool DateExpression::eval(const ExpFileEntry& file)
{
return evalRel(file->modtime);
return evalRel(file.file_modtime());
}
bool SizeExpressionMB::eval(FileEntry *file)
bool SizeExpressionMB::eval(const ExpFileEntry& file)
{
return evalRel((int)(file->size/(uint64_t)(1024*1024)));
return evalRel((int)(file.file_size()/(uint64_t)(1024*1024)));
}
bool SizeExpression::eval(FileEntry *file)
bool SizeExpression::eval(const ExpFileEntry& file)
{
return evalRel(file->size);
return evalRel(file.file_size());
}
bool PopExpression::eval(FileEntry *file)
bool PopExpression::eval(const ExpFileEntry& file)
{
return evalRel(file->pop);
return evalRel(file.file_popularity());
}
/******************************************************************************************
@ -68,98 +71,93 @@ Code for evaluating string expressions
******************************************************************************************/
bool NameExpression::eval(FileEntry *file)
bool NameExpression::eval(const ExpFileEntry& file)
{
return evalStr(file->name);
return evalStr(file.file_name());
}
bool PathExpression::eval(FileEntry *file){
std::string path;
/*Construct the path of this file*/
DirEntry * curr = file->parent;
while ( curr != NULL ){
path = curr->name+"/"+ path;
curr = curr->parent;
}
return evalStr(path);
bool PathExpression::eval(const ExpFileEntry& file)
{
return evalStr(file.file_parent_path());
}
bool ExtExpression::eval(FileEntry *file){
std::string ext;
/*Get the part of the string after the last instance of . in the filename */
size_t index = file->name.find_last_of('.');
if (index != std::string::npos) {
ext = file->name.substr(index+1);
if (ext != "" ){
return evalStr(ext);
}
}
return false;
bool ExtExpression::eval(const ExpFileEntry& file)
{
std::string ext;
/*Get the part of the string after the last instance of . in the filename */
size_t index = file.file_name().find_last_of('.');
if (index != std::string::npos) {
ext = file.file_name().substr(index+1);
if (ext != "" ){
return evalStr(ext);
}
}
return false;
}
bool HashExpression::eval(FileEntry *file){
return evalStr(file->hash.toStdString());
bool HashExpression::eval(const ExpFileEntry& file){
return evalStr(file.file_hash().toStdString());
}
/*Check whether two strings are 'equal' to each other*/
static bool StrEquals(const std::string & str1, const std::string & str2,
bool IgnoreCase ){
if ( str1.size() != str2.size() ){
return false;
} else if (IgnoreCase) {
std::equal( str1.begin(), str1.end(),
str2.begin(), CompareCharIC() );
}
return std::equal( str1.begin(), str1.end(),
str2.begin());
bool IgnoreCase ){
if ( str1.size() != str2.size() ){
return false;
} else if (IgnoreCase) {
std::equal( str1.begin(), str1.end(),
str2.begin(), CompareCharIC() );
}
return std::equal( str1.begin(), str1.end(),
str2.begin());
}
/*Check whether one string contains the other*/
static bool StrContains( const std::string & str1, const std::string & str2,
bool IgnoreCase){
bool IgnoreCase){
std::string::const_iterator iter ;
if (IgnoreCase) {
iter = std::search( str1.begin(), str1.end(),
str2.begin(), str2.end(), CompareCharIC() );
} else {
iter = std::search( str1.begin(), str1.end(),
str2.begin(), str2.end());
}
return ( iter != str1.end() );
std::string::const_iterator iter ;
if (IgnoreCase) {
iter = std::search( str1.begin(), str1.end(),
str2.begin(), str2.end(), CompareCharIC() );
} else {
iter = std::search( str1.begin(), str1.end(),
str2.begin(), str2.end());
}
return ( iter != str1.end() );
}
bool StringExpression :: evalStr ( const std::string &str ){
std::list<std::string>::iterator iter;
switch (Op) {
case ContainsAllStrings:
for ( iter = terms.begin(); iter != terms.end(); ++iter ) {
if ( StrContains (str, *iter, IgnoreCase) == false ){
return false;
}
}
return true;
break;
case ContainsAnyStrings:
for ( iter = terms.begin(); iter != terms.end(); ++iter ) {
if ( StrContains (str,*iter, IgnoreCase) == true ) {
return true;
}
}
break;
case EqualsString:
for ( iter = terms.begin(); iter != terms.end(); ++iter ) {
if ( StrEquals (str,*iter, IgnoreCase) == true ) {
return true;
}
}
break;
default:
return false;
}
return false;
std::list<std::string>::iterator iter;
switch (Op) {
case ContainsAllStrings:
for ( iter = terms.begin(); iter != terms.end(); ++iter ) {
if ( StrContains (str, *iter, IgnoreCase) == false ){
return false;
}
}
return true;
break;
case ContainsAnyStrings:
for ( iter = terms.begin(); iter != terms.end(); ++iter ) {
if ( StrContains (str,*iter, IgnoreCase) == true ) {
return true;
}
}
break;
case EqualsString:
for ( iter = terms.begin(); iter != terms.end(); ++iter ) {
if ( StrEquals (str,*iter, IgnoreCase) == true ) {
return true;
}
}
break;
default:
return false;
}
return false;
}
/*************************************************************************
@ -168,122 +166,123 @@ bool StringExpression :: evalStr ( const std::string &str ){
void CompoundExpression::linearize(LinearizedExpression& e) const
{
e._tokens.push_back(LinearizedExpression::EXPR_COMP) ;
e._ints.push_back(Op) ;
e._tokens.push_back(LinearizedExpression::EXPR_COMP) ;
e._ints.push_back(Op) ;
Lexp->linearize(e) ;
Rexp->linearize(e) ;
Lexp->linearize(e) ;
Rexp->linearize(e) ;
}
void StringExpression::linearize(LinearizedExpression& e) const
{
e._ints.push_back(Op) ;
e._ints.push_back(IgnoreCase) ;
e._ints.push_back(terms.size()) ;
e._ints.push_back(Op) ;
e._ints.push_back(IgnoreCase) ;
e._ints.push_back(terms.size()) ;
for(std::list<std::string>::const_iterator it(terms.begin());it!=terms.end();++it)
e._strings.push_back(*it) ;
for(std::list<std::string>::const_iterator it(terms.begin());it!=terms.end();++it)
e._strings.push_back(*it) ;
}
Expression *LinearizedExpression::toExpr(const LinearizedExpression& e)
{
int i=0,j=0,k=0 ;
return toExpr(e,i,j,k) ;
int i=0,j=0,k=0 ;
return toExpr(e,i,j,k) ;
}
void LinearizedExpression::readStringExpr(const LinearizedExpression& e,int& n_ints,int& n_strings,std::list<std::string>& strings,bool& b,StringOperator& op)
{
op = static_cast<StringOperator>(e._ints[n_ints++]) ;
b = e._ints[n_ints++] ;
int n = e._ints[n_ints++] ;
op = static_cast<StringOperator>(e._ints[n_ints++]) ;
b = e._ints[n_ints++] ;
int n = e._ints[n_ints++] ;
strings.clear() ;
for(int i=0;i<n;++i)
strings.push_back(e._strings[n_strings++]) ;
strings.clear() ;
for(int i=0;i<n;++i)
strings.push_back(e._strings[n_strings++]) ;
}
Expression *LinearizedExpression::toExpr(const LinearizedExpression& e,int& n_tok,int& n_ints,int& n_strings)
{
LinearizedExpression::token tok = static_cast<LinearizedExpression::token>(e._tokens[n_tok++]) ;
LinearizedExpression::token tok = static_cast<LinearizedExpression::token>(e._tokens[n_tok++]) ;
switch(tok)
{
case EXPR_DATE: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
switch(tok)
{
case EXPR_DATE: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
return new DateExpression(op,lv,hv) ;
}
return new DateExpression(op,lv,hv) ;
}
case EXPR_POP: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
case EXPR_POP: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
return new PopExpression(op,lv,hv) ;
}
case EXPR_SIZE: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
return new PopExpression(op,lv,hv) ;
}
case EXPR_SIZE: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
return new SizeExpression(op,lv,hv) ;
}
case EXPR_HASH: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
return new SizeExpression(op,lv,hv) ;
}
case EXPR_HASH: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
return new HashExpression(op,strings) ;
}
case EXPR_NAME: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
return new HashExpression(op,strings) ;
}
case EXPR_NAME: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
return new NameExpression(op,strings,b) ;
}
case EXPR_PATH: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
return new NameExpression(op,strings,b) ;
}
case EXPR_PATH: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
return new ExtExpression(op,strings,b) ;
}
case EXPR_EXT: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
return new ExtExpression(op,strings,b) ;
}
case EXPR_EXT: {
std::list<std::string> strings ;
StringOperator op ;
bool b ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
readStringExpr(e,n_ints,n_strings,strings,b,op) ;
return new ExtExpression(op,strings,b) ;
}
case EXPR_COMP: {
LogicalOperator op = static_cast<LogicalOperator>(e._ints[n_ints++]) ;
return new ExtExpression(op,strings,b) ;
}
case EXPR_COMP: {
LogicalOperator op = static_cast<LogicalOperator>(e._ints[n_ints++]) ;
Expression *e1 = toExpr(e,n_tok,n_ints,n_strings) ;
Expression *e2 = toExpr(e,n_tok,n_ints,n_strings) ;
Expression *e1 = toExpr(e,n_tok,n_ints,n_strings) ;
Expression *e2 = toExpr(e,n_tok,n_ints,n_strings) ;
return new CompoundExpression(op,e1,e2) ;
}
case EXPR_SIZE_MB: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
return new CompoundExpression(op,e1,e2) ;
}
case EXPR_SIZE_MB: {
RelOperator op = static_cast<RelOperator>(e._ints[n_ints++]) ;
int lv = e._ints[n_ints++] ;
int hv = e._ints[n_ints++] ;
return new SizeExpressionMB(op,lv,hv) ;
}
default:
std::cerr << "No expression match the current value " << tok << std::endl ;
return NULL ;
}
return new SizeExpressionMB(op,lv,hv) ;
}
default:
std::cerr << "No expression match the current value " << tok << std::endl ;
return NULL ;
}
}
}