pdf2htmlEX/src/util/path.cc

142 lines
3.2 KiB
C++

/*
* Functions manipulating filenames and paths
*
* by WangLu
* 2012.11.29
*/
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <cstring>
#include "path.h"
#ifdef __MINGW32__
#include "util/mingw.h"
#endif
using std::string;
namespace pdf2htmlEX {
void create_directories(const string & path)
{
if(path.empty()) return;
size_t idx = path.rfind('/');
if(idx != string::npos)
{
create_directories(path.substr(0, idx));
}
int r = mkdir(path.c_str(), S_IRWXU);
if(r != 0)
{
if(errno == EEXIST)
{
struct stat stat_buf;
if((stat(path.c_str(), &stat_buf) == 0) && S_ISDIR(stat_buf.st_mode))
return;
}
throw string("Cannot create directory: ") + path;
}
}
bool sanitize_filename(string & filename)
{
string sanitized;
bool format_specifier_found = false;
for(size_t i = 0; i < filename.size(); i++)
{
if('%' == filename[i])
{
if(format_specifier_found)
{
sanitized.push_back('%');
sanitized.push_back('%');
}
else
{
// We haven't found the format specifier yet, so see if we can use this one as a valid formatter
size_t original_i = i;
string tmp;
tmp.push_back('%');
while(++i < filename.size())
{
tmp.push_back(filename[i]);
// If we aren't still in option specifiers, stop looking
if(!strchr("0123456789", filename[i]))
{
break;
}
}
// Check to see if we yielded a valid format specifier
if('d' == tmp[tmp.size()-1])
{
// Found a valid integer format
sanitized.append(tmp);
format_specifier_found = true;
}
else
{
// Not a valid format specifier. Just append the protected %
// and keep looking from where we left of in the search
sanitized.push_back('%');
sanitized.push_back('%');
i = original_i;
}
}
}
else
{
sanitized.push_back(filename[i]);
}
}
// Only sanitize if it is a valid format.
if(format_specifier_found)
{
filename.assign(sanitized);
}
return format_specifier_found;
}
bool is_truetype_suffix(const string & suffix)
{
return (suffix == ".ttf") || (suffix == ".ttc") || (suffix == ".otf");
}
string get_filename (const string & path)
{
size_t idx = path.rfind('/');
if(idx == string::npos)
return path;
else if (idx == path.size() - 1)
return "";
return path.substr(idx + 1);
}
string get_suffix(const string & path)
{
string fn = get_filename(path);
size_t idx = fn.rfind('.');
if(idx == string::npos)
return "";
else
{
string s = fn.substr(idx);
for(auto & c : s)
c = tolower(c);
return s;
}
}
} //namespace pdf2htmlEX