-// gdcmUtil.cxx
-//-----------------------------------------------------------------------------
+/*=========================================================================
+
+ Program: gdcm
+ Module: $RCSfile: gdcmUtil.cxx,v $
+ Language: C++
+ Date: $Date: 2004/11/05 20:23:14 $
+ Version: $Revision: 1.60 $
+
+ Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
+ l'Image). All rights reserved. See Doc/License.txt or
+ http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even
+ the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE. See the above copyright notices for more information.
+
+=========================================================================*/
+
#include "gdcmUtil.h"
#include "gdcmDebug.h"
-#include <stdio.h>
-#include <ctype.h> // For isspace
-#include <string.h> // CLEANME: could this be only string ? Related to Win32 ?
-/**
- * \ingroup Globals
- * \brief Pointer to a container, holding _all_ the Dicom Dictionaries.
- */
-gdcmDictSet *gdcmGlobal::Dicts = (gdcmDictSet *)0;
+#include <stdarg.h> //only included in implementation file
+#include <stdio.h> //only included in implementation file
-/**
- * \ingroup Globals
- * \brief Pointer to a hash table containing the 'Value Representations'.
- */
-gdcmVR *gdcmGlobal::VR = (gdcmVR *)0;
-
-/**
- * \ingroup Globals
- * \brief Pointer to a hash table containing the Transfer Syntax codes
- * and their english description
- */
-gdcmTS *gdcmGlobal::TS = (gdcmTS *)0;
-
-/**
- * \ingroup Globals
- * \brief Pointer to the hash table containing the Dicom Elements
- * necessary to describe each part of a DICOMDIR
- */
-gdcmDicomDirElement *gdcmGlobal::ddElem = (gdcmDicomDirElement *)0;
+namespace gdcm
+{
/**
* \ingroup Globals
- * \brief Global container
- */
-gdcmGlobal gdcmGlob;
-
-/**
- * \ingroup gdcmGlobal
- * \brief constructor : populates the various H Tables
+ * \brief Provide a better 'c++' approach for sprintf
+ * For example c code is:
+ * sprintf(trash, "%04x|%04x", group , element);
+ *
+ * c++ is
+ * std::ostringstream buf;
+ * buf << std::right << std::setw(4) << std::setfill('0') << std::hex
+ * << group << "|" << std::right << std::setw(4) << std::setfill('0')
+ * << std::hex << element;
+ * buf.str();
*/
-gdcmGlobal::gdcmGlobal(void) {
- if (VR || TS || Dicts || ddElem)
- dbg.Verbose(0, "gdcmGlobal::gdcmGlobal : VR or TS or Dicts already allocated");
- Dicts = new gdcmDictSet();
- VR = new gdcmVR();
- TS = new gdcmTS();
- ddElem = new gdcmDicomDirElement();
-}
-/**
- * \ingroup gdcmGlobal
- * \brief canonical destructor
- */
-gdcmGlobal::~gdcmGlobal() {
- delete Dicts;
- delete VR;
- delete TS;
- delete ddElem;
-}
-/**
- * \ingroup gdcmGlobal
- * \brief returns a pointer to the 'Value Representation Table'
- */
-gdcmVR *gdcmGlobal::GetVR(void) {
- return VR;
-}
-/**
- * \ingroup gdcmGlobal
- * \brief returns a pointer to the 'Transfert Syntax Table'
- */
-gdcmTS *gdcmGlobal::GetTS(void) {
- return TS;
-}
-/**
- * \ingroup gdcmGlobal
- * \brief returns a pointer to Dictionaries Table
- */
-gdcmDictSet *gdcmGlobal::GetDicts(void) {
- return Dicts;
-}
-/**
- * \ingroup gdcmGlobal
- * \brief returns a pointer to the DicomDir related elements Table
- */
-gdcmDicomDirElement *gdcmGlobal::GetDicomDirElements(void) {
- return ddElem;
+std::string Util::Format(const char* format, ...)
+{
+ char buffer[2048];
+ va_list args;
+ va_start(args, format);
+ vsprintf(buffer, format, args); //might be a security flaw
+ return buffer;
}
-/**
- * \defgroup Globals Utility functions
- * \brief Here are some utility functions, belonging to NO class,
- * dealing with strings, file names... that can be called
- * from anywhere by whomsoever they can help.
- */
-
-
-/**
- * \ingroup Globals
- * \brief Because is not yet available in g++2.96
- */
-std::istream& eatwhite(std::istream& is) {
- char c;
- while (is.get(c)) {
- if (!isspace(c)) {
- is.putback(c);
- break;
- }
- }
- return is;
-}
/**
* \ingroup Globals
* \brief Because not available in C++ (?)
*/
-void Tokenize (const std::string& str,
- std::vector<std::string>& tokens,
- const std::string& delimiters) {
+void Util::Tokenize (const std::string& str,
+ std::vector<std::string>& tokens,
+ const std::string& delimiters)
+{
std::string::size_type lastPos = str.find_first_not_of(delimiters,0);
std::string::size_type pos = str.find_first_of (delimiters,lastPos);
- while (std::string::npos != pos || std::string::npos != lastPos) {
+ while (std::string::npos != pos || std::string::npos != lastPos)
+ {
tokens.push_back(str.substr(lastPos, pos - lastPos));
lastPos = str.find_first_not_of(delimiters, pos);
pos = str.find_first_of (delimiters, lastPos);
/**
* \ingroup Globals
- * \brief Weed out a string from the non-printable characters (in order
- * to avoid corrupting the terminal of invocation when printing)
- * @param v characters array to remove non printable characters from
+ * \brief Because not available in C++ (?)
+ * Counts the number of occurences of a substring within a string
*/
-char *_cleanString(char *v) {
- char *d;
- int i, l;
- l = strlen(v);
- for (i=0,d=v;
- i<l ;
- i++,d++) {
- if (!isprint(*d))
- *d = '.';
+
+int Util::CountSubstring (const std::string& str,
+ const std::string& subStr)
+{
+ int count = 0; // counts how many times it appears
+ unsigned int x = 0; // The index position in the string
+
+ do
+ {
+ x = str.find(subStr,x); // Find the substring
+ if (x != std::string::npos) // If present
+ {
+ count++; // increase the count
+ x += subStr.length(); // Skip this word
+ }
}
- return v;
+ while (x != std::string::npos); // Carry on until not present
+
+ return count;
}
/**
* \ingroup Globals
- * \brief to prevent a flashing screen when non-printable character
+ * \brief Weed out a string from the non-printable characters (in order
+ * to avoid corrupting the terminal of invocation when printing)
* @param s string to remove non printable characters from
*/
-std::string _CreateCleanString(std::string s) {
- std::string str=s;
+std::string Util::CreateCleanString(std::string const & s)
+{
+ std::string str = s;
- for(int i=0;i<str.size();i++)
+ for(unsigned int i=0;i<str.size();i++)
{
if(!isprint(str[i]))
+ {
str[i]='.';
+ }
}
if(str.size()>0)
+ {
if(!isprint(s[str.size()-1]))
+ {
if(s[str.size()-1]==0)
+ {
str[str.size()-1]=' ';
+ }
+ }
+ }
- return(str);
+ return str;
}
/**
* \brief Add a SEPARATOR to the end of the name is necessary
* @param name file/directory name to normalize
*/
-void NormalizePath(std::string &name)
+std::string Util::NormalizePath(std::string const & pathname)
{
const char SEPARATOR_X = '/';
const char SEPARATOR_WIN = '\\';
const std::string SEPARATOR = "/";
- int size=name.size();
+ std::string name = pathname;
+ int size = name.size();
- if((name[size-1]!=SEPARATOR_X)&&(name[size-1]!=SEPARATOR_WIN))
+ if( name[size-1] != SEPARATOR_X && name[size-1] != SEPARATOR_WIN )
{
- name+=SEPARATOR;
+ name += SEPARATOR;
}
+ return name;
}
/**
* \brief Get the (directory) path from a full path file name
* @param fullName file/directory name to extract Path from
*/
-std::string GetPath(std::string &fullName)
+std::string Util::GetPath(std::string const & fullName)
{
- int pos1=fullName.rfind("/");
- int pos2=fullName.rfind("\\");
- if(pos1>pos2)
- fullName.resize(pos1);
+ std::string res = fullName;
+ int pos1 = res.rfind("/");
+ int pos2 = res.rfind("\\");
+ if( pos1 > pos2)
+ {
+ res.resize(pos1);
+ }
else
- fullName.resize(pos2);
- return(fullName);
+ {
+ res.resize(pos2);
+ }
+
+ return res;
}
/**
- * \ingroup Globals
+ * \ingroup Util
* \brief Get the (last) name of a full path file name
* @param fullName file/directory name to extract end name from
*/
-std::string GetName(std::string &fullName)
+std::string Util::GetName(std::string const & fullName)
{
- int fin=fullName.length()-1;
- char a =fullName.c_str()[fin];
- if (a == '/' || a == '\\') {
- fin--;
- }
- int deb;
- for (int i=fin;i!=0;i--) {
- if (fullName.c_str()[i] == '/' || fullName.c_str()[i] == '\\')
- break;
- deb = i;
- }
-
- std::string lastName;
- for (int j=deb;j<fin+1;j++)
- lastName=lastName+fullName.c_str()[j];
-
- return(lastName);
+ std::string filename = fullName;
+
+ std::string::size_type slash_pos = filename.rfind("/");
+ std::string::size_type backslash_pos = filename.rfind("\\");
+ slash_pos = slash_pos > backslash_pos ? slash_pos : backslash_pos;
+ if(slash_pos != std::string::npos)
+ {
+ return filename.substr(slash_pos + 1);
+ }
+ else
+ {
+ return filename;
+ }
}
+
+/**
+ * \ingroup Util
+ * \brief Create a /DICOM/ string:
+ * It should a of even lenght (no odd length ever)
+ * It can contains as many \0 as you want.
+ * This function is similar to DicomString(const char*),
+ * except it doesn't take a lenght.
+ * It only pad with a null character if length is odd
+ */
+std::string Util::DicomString(const char* s)
+{
+ size_t l = strlen(s);
+ if( l%2 )
+ {
+ l++;
+ }
+ std::string r(s, s+l);
+ assert( !(r.size() % 2) );
+ return r;
+}
+
+/**
+ * \ingroup Util
+ * \brief Create a /DICOM/ string:
+ * It should a of even length (no odd length ever)
+ * It can contains as many \0 as you want.
+ */
+std::string Util::DicomString(const char* s, size_t l)
+{
+ std::string r(s, s+l);
+ assert( !(r.size() % 2) );
+ return r;
+}
+
+template <class T>
+std::ostream& binary_write(std::ostream& os, const T& val)
+{
+ return os.write(reinterpret_cast<const char*>(&val), sizeof val);
+}
+
+std::ostream& binary_write(std::ostream& os, const uint16_t& val)
+{
+#ifdef GDCM_WORDS_BIGENDIAN
+ uint16_t swap;
+ swap = ((( val << 8 ) & 0x0ff00 ) | (( val >> 8 ) & 0x00ff ) );
+ return os.write(reinterpret_cast<const char*>(&swap), 2);
+#else
+ return os.write(reinterpret_cast<const char*>(&val), 2);
+#endif //GDCM_WORDS_BIGENDIAN
+}
+
+std::ostream& binary_write(std::ostream& os, const uint32_t& val)
+{
+#ifdef GDCM_WORDS_BIGENDIAN
+ uint32_t swap;
+ swap = ( ((val<<24) & 0xff000000) | ((val<<8) & 0x00ff0000) |
+ ((val>>8) & 0x0000ff00) | ((val>>24) & 0x000000ff) );
+ return os.write(reinterpret_cast<const char*>(&swap), 4);
+#else
+ return os.write(reinterpret_cast<const char*>(&val), 4);
+#endif //GDCM_WORDS_BIGENDIAN
+}
+
+//template <>
+std::ostream& binary_write(std::ostream& os, const char* val)
+{
+ return os.write(val, strlen(val));
+}
+
+std::ostream& binary_write(std::ostream& os, std::string const & val)
+{
+ return os.write(val.c_str(), val.size());
+}
+
+
+} // end namespace gdcm
+