filename_old.h
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#ifndef STIM_FILENAME_H
#define STIM_FILENAME_H
#include <stdio.h> /* defines FILENAME_MAX */
#ifdef _WIN32
#include <windows.h>
#include <direct.h>
#define GetCurrentDir _getcwd
#define STIM_FILENAME_DIV '/'
#else
#include <unistd.h>
#define GetCurrentDir getcwd
#define STIM_FILENAME_DIV '/'
#endif
#include <string>
#include <sstream>
#include <iomanip>
#include <vector>
#include <stack>
#include <algorithm>
#include <iostream>
#include "../parser/parser.h"
#ifdef BOOST_PRECOMPILED
#include <boost/filesystem.hpp>
#endif
namespace stim{
//filename class designed to work with both Windows and Unix
class filename{
private:
void init(){
absolute = false;
}
protected:
std::string drive; //drive letter (for Windows)
std::vector<std::string> path; //directory hierarchy
std::string pref; //file prefix (without extension)
std::string ext; //file extension
bool absolute; //filename is an absolute path
//replaces win32 dividers with the Linux standard
std::string unix_div(std::string s) {
std::replace( s.begin(), s.end(), '\\', '/');
return s;
}
//break up a filename into a prefix and extension
void parse_name(std::string fname){
//find the extension
size_t xpos = fname.find_last_of('.'); //find the position of the extension period (if there is one)
if(xpos != std::string::npos){ //split the prefix and extension
pref = fname.substr(0, xpos);
ext = fname.substr(xpos + 1);
}
else
pref = fname;
}
/// Parse a file locator into its component parts
void parse(std::string &dr, std::vector<std::string> &p, std::string &pre, std::string &ex, bool &abs, std::string loc){
dr = ""; //initialize the drive to NULL (in a Unix system, this will always be NULL)
p.clear(); //empty out the path array
pre = ""; //initialize the file prefix to NULL (if no file name is given, this will remain NULL)
ex = ""; //initialize the file extension to NULL (if no extension exists, this will remain NULL)
abs = false; //the default path is relative
loc = unix_div(loc); //convert to unix style divisions (default representation)
if(loc.size() == 0) return; //if the locator is NULL, just return (everything else will be NULL)
//determine the drive (if Windows)
#ifdef _WIN32
if(loc[1] == ':'){ //if the second character is a colon, the character right before it is the drive
abs = true; //this is an absolute path
dr = loc[0]; //copy the drive letter
loc = loc.substr(3); //remove the drive information from the locator string
}
#else
if(loc[0] == STIM_FILENAME_DIV){
absolute = true;
loc = loc.substr(1);
}
#endif
std::string fname = loc.substr( loc.find_last_of('/') + 1 ); //find the file name (including extension)
//find the extension and prefix
size_t xpos = fname.find_last_of('.'); //find the position of the extension period (if there is one)
if(xpos != std::string::npos){ //split the prefix and extension
pre = fname.substr(0, xpos);
ex = fname.substr(xpos + 1);
}
else
pre = fname;
}
//parse a file locator string
void parse(std::string loc){
if(loc.size() == 0) return;
loc = unix_div(loc);
//determine the drive (if Windows)
drive = "";
#ifdef _WIN32
//if the second character is a colon, the character right before it is the drive
if(loc[1] == ':'){
absolute = true; //this is an absolute path
drive = loc[0]; //copy the drive letter
loc = loc.substr(3); //remove the drive information from the locator string
}
#else
if(loc[0] == STIM_FILENAME_DIV){
absolute = true;
loc = loc.substr(1);
}
#endif
//determine the file name
std::string fname = loc.substr( loc.find_last_of('/') + 1 ); //find the file name (including extension)
//parse the file name
parse_name(fname);
//find the directory hierarchy
std::string dir = loc.substr(0, loc.find_last_of('/') + 1 );
path = stim::parser::split(dir, '/');
}
public:
filename(){
init();
}
filename(std::string loc){
init();
parse(loc);
}
/// Outputs the file name (including prefix and extension)
std::string get_name(){
if(pref == "" && ext == "")
return "";
else
return pref + "." + ext;
}
/// Output the file extension only (usually three characters after a '.')
std::string get_extension(){
return ext;
}
std::string extension(){
return ext;
}
void extension(std::string e){
ext = e;
}
/// Output the file prefix only (name before the extension)
std::string get_prefix(){
return pref;
}
std::string prefix(){
return pref;
}
void prefix(std::string p){
pref = p;
}
/// Output the entire path (not including the filename)
/// ex. "c:\this\is\the\directory\"
std::string dir(){
std::stringstream ss;
//if the path is absolute
if(absolute){
//output the drive letter if in Windows
#ifdef _WIN32
ss<<drive<<":";
#endif
ss<<STIM_FILENAME_DIV;
}
//output the directory
for(unsigned int d = 0; d < path.size(); d++)
ss<<path[d]<<STIM_FILENAME_DIV;
return ss.str();
}
void clear()
{
drive = ""; //drive letter (for Windows)
path.resize(0);
pref= ""; //file prefix (without extension)
ext = ""; //file extension
}
/// Output the entire string, including the path and filename
/// ex. "c:\this\is\a\directory\file.txt"
std::string str(){
std::stringstream ss; //create a string stream
ss<<dir()<<get_name(); //push the directory and filename to that stream
return ss.str(); //convert the stream to a string and return it
}
//*****************************************************************************************************************
// output is the directory and the prefix and the extension of the files, which are looking for in that directory.
/// David: I have no idea what this is doing. It looks identical to dir()
std::string dir_fname(){
std::stringstream ss;
//if the path is absolute
if(absolute){
//output the drive letter if in Windows
#ifdef _WIN32
ss<<drive<<":";
#endif
ss<<STIM_FILENAME_DIV;
}
for(unsigned int d = 0; d < path.size(); d++)
ss<<path[d]<<STIM_FILENAME_DIV;
ss<<get_name();
return ss.str();
}
// output is the directory and the name of the file which are found in that given directory
std::string f_name(std::string file_name){
std::stringstream ss;
if(absolute){ //if the path is absolute
#ifdef _WIN32
ss<<drive<<":"; //output the drive letter if in Windows
#endif
ss<<STIM_FILENAME_DIV; //output a path divider
}
for(unsigned int d = 0; d < path.size(); d++) //for each directory in the current path
ss<<path[d]<<STIM_FILENAME_DIV; //add that directory, interspersing path dividers
stim::filename fn = file_name;
std::string fn_prefix = fn.pref;
std::string fn_ext = fn.ext;
ss<<fn_prefix + '.' + fn_ext;
return ss.str();
}
/// Returns a list of files using the current filename as a template.
/// For example:
/// C:\this\is\a\path\file*.txt
/// can be used as a template to find a series of files file001.txt, file002.txt, file003.txt, etc.
std::vector<stim::filename> get_list(){
//this is OS dependent, so we're starting with Windows
//the Unix version requires Boost
#ifdef _WIN32
stim::filename filepath(dir_fname()); //initialize filepath with the mask
HANDLE hFind = INVALID_HANDLE_VALUE; //allocate data structures for looping through files
WIN32_FIND_DATAA FindFileData;
std::vector<stim::filename> file_list; //initialize a list to hold all matching filenames
hFind = FindFirstFileA((filepath.str().c_str()), &FindFileData); //find the first file that matches the specified file path
if (hFind == INVALID_HANDLE_VALUE) { //if there are no matching files
printf ("Invalid file handle. Error is %u.\n", GetLastError()); //print an error
}
else {
std::string file_name = FindFileData.cFileName; //save the file name
std::string file_path = dir(); //the file is in the specified directory, so save it
stim::filename current_file(file_path + file_name); //create a stim::filename structure representing this file
file_list.push_back(current_file); //push the new stim::filename to the file list
// List all the other files in the directory.
while (FindNextFileA(hFind, &FindFileData) != 0){ //iterate until there are no more matching files
file_name = FindFileData.cFileName; //save the next file
current_file = (f_name(file_name)); //append the directory
file_list.push_back(current_file); //push it to the list
}
FindClose(hFind); //close the file data structure
}
return file_list; //return the list of files
#elif BOOST_PRECOMPILED
boost::filesystem::path p(dir()); //create a path from the current filename
std::vector<stim::filename> file_list;
if(boost::filesystem::exists(p)){
if(boost::filesystem::is_directory(p)){
typedef std::vector<boost::filesystem::path> vec; // store paths,
vec v; // so we can sort them later
std::copy(boost::filesystem::directory_iterator(p), boost::filesystem::directory_iterator(), back_inserter(v));
std::sort(v.begin(), v.end()); // sort, since directory iteration
// is not ordered on some file systems
//compare file names to the current template (look for wild cards)
for (vec::const_iterator it(v.begin()), it_end(v.end()); it != it_end; ++it)
{
//if the filename is a wild card *or* it matches the read file name
if( prefix == "*" || prefix == (*it).filename().stem().string()){
//if the extension is a wild card *or* it matches the read file extension
if( ext == "*" || "." + ext == (*it).filename().extension().string()){
file_list.push_back((*it).string()); //include it in the final list
}
}
}
}
}
return file_list;
#else
std::cout<<"ERROR: UNIX systems don't support file lists without the Boost precompiled libraries."<<std::endl;
exit(1);
#endif
}
//**************************************************************************************************
//gets the current working directory
static stim::filename cwd(){
char cCurrentPath[FILENAME_MAX];
if (!GetCurrentDir(cCurrentPath, sizeof(cCurrentPath))){
std::cout<<"ERROR getting current working directory."<<std::endl;
exit(1);
}
std::cout<<cCurrentPath<<std::endl;
return stim::filename(std::string(cCurrentPath) + STIM_FILENAME_DIV);
}
void set_name(std::string fname){
parse_name(fname);
}
//append a string to the filename and return a new filename
stim::filename append(std::string s){
stim::filename result = *this; //create a new filename, copy the current filename
result.pref = pref + s; //append the string to the filename
return result;
}
//get a path relative to the current one
stim::filename get_relative(std::string rel){
std::vector<std::string> rel_path = stim::parser::split(rel, STIM_FILENAME_DIV);
//if the relative path doesn't contain a file, add a blank string to be used as the filename
if(rel[rel.size()-1] == STIM_FILENAME_DIV)
rel_path.push_back("");
//create a stack representing the current absolute path
std::stack<std::string, std::vector<std::string> > s(path);
//for each token in the relative path
for(int d=0; d<rel_path.size() - 1; d++){
//if the token is a double-dot, pop a directory off of the stack
if(rel_path[d] == "..")
s.pop();
else
s.push(rel_path[d]);
}
std::string* end = &s.top() + 1;
std::string* begin = end - s.size();
std::vector<std::string> result_path(begin, end);
//create a new path to be returned
stim::filename result = *this;
result.path = result_path;
result.set_name(rel_path.back());
return result;
}
/// This function replaces a wildcard in the prefix with the specified string
stim::filename insert(std::string str){
stim::filename result = *this; //initialize the result filename to the current filename
size_t loc = result.pref.find('*'); //find a wild card in the string
if(loc == std::string::npos) //if a wildcard isn't found
result.pref += str; //append the value to the prefix
else
result.pref.replace(loc, 1, str); //replace the wildcard with the string
return result; //return the result
}
stim::filename insert(size_t i, size_t n = 2){
std::stringstream ss;
ss << std::setw(n) << std::setfill('0') << i;
return insert(ss.str());
}
bool is_relative(){
return !absolute;
}
bool is_absolute(){
return absolute;
}
};
} //end namespace stim
#endif