netgen/libsrc/general/mystring.cpp

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2009-01-13 04:40:13 +05:00
//**************************************************************
//
// filename: mystring.cpp
//
// project: doctoral thesis
//
// autor: Dipl.-Ing. Gerstmayr Johannes
//
// generated: 20.12.98
// last change: 20.12.98
// description: implementation for strings
// remarks:
//
//**************************************************************
// string class
#include <mystdlib.h>
#include <myadt.hpp>
#include <linalg.hpp>
#include <gprim.hpp>
namespace netgen
{
void ReadEnclString(istream & in, string & str, const char encl)
{
char currchar;
str = "";
in.get(currchar);
while(in && (currchar == ' ' || currchar == '\t' || currchar == '\n') )
in.get(currchar);
if(currchar == encl)
{
in.get(currchar);
while(in && currchar != encl)
{
str += currchar;
in.get(currchar);
}
}
else
{
in.putback(currchar);
in >> str;
}
}
void DefaultStringErrHandler()
{
cerr << "Error : string operation out of range\n" << flush;
}
void (*MyStr::ErrHandler)() = DefaultStringErrHandler;
/*
MyStr::MyStr()
{
length = 0;
str = shortstr;
str[0] = 0;
}
*/
MyStr::MyStr(const char *s)
{
length = unsigned(strlen(s));
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, s);
}
/*
MyStr::MyStr(char s)
{
length = 1;
str = shortstr;
str[0] = s;
str[1] = (char)0;
}
*/
MyStr::MyStr(const MyStr& s)
{
length = s.length;
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, s.str);
}
MyStr::MyStr(int i)
{
char buffer[32];
sprintf(buffer, "%d", i);
length = unsigned(strlen(buffer));
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, buffer);
}
MyStr::MyStr(void * p)
{
char buffer[32];
sprintf(buffer, "%p", p);
length = unsigned(strlen(buffer));
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, buffer);
}
MyStr::MyStr(long l)
{
char buffer[32];
sprintf(buffer, "%ld", l);
length = unsigned(strlen(buffer));
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, buffer);
}
MyStr::MyStr(double d)
{
char buffer[32];
//if (fabs(d) < 1E-100) {d = 0;}
sprintf(buffer, "%g", d);
length = unsigned(strlen(buffer));
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, buffer);
}
MyStr::MyStr(const Point3d& p)
{
char buffer[80];
//if (fabs(d) < 1E-100) {d = 0;}
sprintf(buffer, "[%g, %g, %g]", p.X(), p.Y(), p.Z());
length = unsigned(strlen(buffer));
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, buffer);
}
MyStr::MyStr(const Vec3d& p)
{
char buffer[80];
//if (fabs(d) < 1E-100) {d = 0;}
sprintf(buffer, "[%g, %g, %g]", p.X(), p.Y(), p.Z());
length = unsigned(strlen(buffer));
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, buffer);
}
MyStr::MyStr(unsigned n, int)
{
length = n;
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
str[n] = 0;
}
MyStr::MyStr(const string & st)
{
length = unsigned(st.length());
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy (str, st.c_str());
}
MyStr MyStr::Left(unsigned r)
{
if(r > length)
{
MyStr::ErrHandler();
MyStr s;
return s;
}
else
{
MyStr tmp(r, 0);
strncpy(tmp.str, str, r);
return tmp;
}
}
MyStr MyStr::Right(unsigned l)
{
if(l > length)
{
MyStr::ErrHandler();
MyStr s;
return s;
}
else
{
MyStr tmp(l, 0);
strncpy(tmp.str, str + length - l, l);
return tmp;
}
}
MyStr& MyStr::InsertAt(unsigned pos, const MyStr& s)
{
if(pos > length)
{
MyStr::ErrHandler();
return *this;
}
int newLength = length + s.length;
char *tmp = new char[newLength + 1];
strncpy(tmp, str, pos);
strcpy(tmp + pos, s.str);
strcpy(tmp + pos + s.length, str + pos);
if (length > SHORTLEN) delete [] str;
length = newLength;
if (length > SHORTLEN)
str = tmp;
else
{
strcpy (shortstr, tmp);
delete [] tmp;
str = shortstr;
}
return *this;
}
MyStr &MyStr::WriteAt(unsigned pos, const MyStr& s)
{
if(pos > length)
{
MyStr::ErrHandler();
return *this;
}
unsigned n = length - pos;
if(s.length < n)
n = s.length;
strncpy(str + pos, s.str, n);
return *this;
}
void MyStr::ConvertTextToExcel()
{
/*
for (int i = 0; i < Length(); i++)
{
if ((*this)[i]==',') {(*this)[i] = ';';}
else if ((*this)[i]=='.') {(*this)[i] = ',';}
}
*/
}
void MyStr::ConvertExcelToText()
{
/*
for (int i = 0; i < Length(); i++)
{
if ((*this)[i]==',') {(*this)[i] = '.';}
else if ((*this)[i]==';') {(*this)[i] = ',';}
}
*/
}
MyStr& MyStr::operator = (const MyStr& s)
{
if (length > SHORTLEN) delete [] str;
length = s.length;
if (length > SHORTLEN)
str = new char[length + 1];
else
str = shortstr;
strcpy(str, s.str);
return *this;
}
MyStr operator + (const MyStr& s1, const MyStr& s2)
{
MyStr tmp(s1.length + s2.length, 0);
if (s1.length != 0) strcpy(tmp.str, s1.str);
if (s2.length != 0) strcpy(tmp.str + s1.length, s2.str);
return tmp;
}
void MyStr::operator += (const MyStr& s)
{
if (length+s.length <= SHORTLEN)
{
if (s.length != 0) strcpy(shortstr + length, s.str);
}
else
{
char *tmp = new char[length + s.length + 1];
if (length != 0) strcpy(tmp, str);
if (s.length != 0) strcpy(tmp + length, s.str);
if (length > SHORTLEN) delete [] str;
length += s.length;
str = tmp;
}
}
char& MyStr::operator [] (unsigned n)
{
static char dummy;
if(n < length)
return str[n];
else
{
MyStr::ErrHandler();
return dummy;
}
}
char MyStr::operator [] (unsigned n) const
{
static char dummy;
if(n < length)
return str[n];
else
{
MyStr::ErrHandler();
return dummy;
}
}
MyStr MyStr::operator () (unsigned l, unsigned r)
{
if((l > r) || (r > length))
{
MyStr::ErrHandler();
MyStr s;
return s;
}
else
{
int n = r - l + 1;
MyStr tmp(n, 0);
strncpy(tmp.str, str + 1, n);
return tmp;
}
}
string MyStr::cpp_string(void) const
{
string aux(str,length);
return aux;
}
/*
istream& operator >> (istream& is, MyStr& s)
{
const int buflen = 1000;
char buffer[buflen+1];
int end = 0;
s = "";
MyStr str;
while (!end)
{
is.get(buffer, buflen);
str = MyStr(buffer);
s += str;
if (is.peek() == EOF) {end = 1;}
}
return is;
}
*/
/*
#ifdef __borland
::ifstream& operator >> (::ifstream& is, MyStr& s) // wb
{ // wb
const int buflen = 1000; // wb
char buffer[buflen+1]; // wb
// wb
int end = 0; // wb
s = ""; // wb
MyStr str; // wb
// wb
while (!end) // wb
{ // wb
is.get(buffer, buflen); // wb
str = MyStr(buffer); // wb
s += str; // wb
if (is.peek() == EOF) {end = 1;} // wb
} // wb
// wb
return is; // wb
}
#endif
*/
}