stringconvert.h File Reference

#include <sstream>
#include <typedefs.h>

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Classes
class	stringconvert
	String helper functions. More...
Functions
template<typename T >
string &	operator<< (string &str, T const &x)
	String serialize by appending to a string with the same syntax as the operator << (ostream &,T).
template<typename T >
void	stringfrom (T &targ, stringc &str)
	Convert from a string.
template<typename T >
void	stringto (string &str, T const data)
	Convert to a string.
template<typename T >
stringc	stringto (T const data)
	Convert to a string.
boolc	isstringdigits (stringc &str)
	Is the string digits only?
boolc	isstringinteger (stringc &str)
	Is the string an integer? Not testing the value so 7.0 is not regared as an integer.
boolc	isstringzero_or_positive_real (stringc &str)
	e.g.
boolc	isstringreal (stringc &str)
	Integers are a subset of the reals.
boolc	isstringnegative (stringc &str)
	Looks for negative sign and a real number.
template<typename T >
stringc	stringtag (T x, stringc &tag)
	Helper function to wrap data in tags.

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Function Documentation

boolc isstringdigits

(

stringc &

str

)

Is the string digits only?

Definition at line 10 of file stringconvert.cpp.

Referenced by isstringinteger(), isstringzero_or_positive_real(), and misclib_testcode::stringconverttest::unittest01().

{
  if (str.empty())
    return false;

  for (size_t i=0; i<str.length(); ++i)
  {
//cout << i << ":" << str[i] << "  " << isdigit(str[i]) << endl;
    if (isdigit(str[i])==false)
      return false;
  }

  return true;
}

boolc isstringinteger

(

stringc &

str

)

Is the string an integer? Not testing the value so 7.0 is not regared as an integer.

Definition at line 25 of file stringconvert.cpp.

References isstringdigits(), and isstringinteger().

Referenced by isstringinteger(), and misclib_testcode::stringconverttest::unittest01().

{
  if (str.empty())
    return false;

  if (str[0]=='-')
    return isstringinteger(str.substr(1));

  return isstringdigits(str);
}

boolc isstringnegative

(

stringc &

str

)

Looks for negative sign and a real number.

Definition at line 76 of file stringconvert.cpp.

References isstringreal().

Referenced by misclib_testcode::stringconverttest::unittest01().

{
  if (str.empty())
    return false;

  if (str[0] != '-')
    return false;

  return isstringreal(str);
}

boolc isstringreal

(

stringc &

str

)

Integers are a subset of the reals.

Definition at line 65 of file stringconvert.cpp.

References isstringzero_or_positive_real().

Referenced by isstringnegative(), and misclib_testcode::stringconverttest::unittest01().

{
  if (str.empty())
    return false;

  if (str[0]=='-')
    return isstringzero_or_positive_real(str.substr(1));

  return isstringzero_or_positive_real(str);
}

boolc isstringzero_or_positive_real

(

stringc &

str

)

e.g.

float or double >= zero.

Definition at line 36 of file stringconvert.cpp.

References isstringdigits().

Referenced by isstringreal().

{
  if (str.empty())
    return false;

  if (str[0]=='.')
    return isstringdigits(str.substr(1));

  size_t k;
  uint kcount=0;
  for (size_t i=0; i<str.length(); ++i)
  {
    if (str[i]=='.')
    {
      k=i;
      ++kcount;
      continue;
    }

    if (isdigit(str[i])==false)
      return false;
  }

  if (kcount>1)
    return false;

  return true;
}

template<typename T >

string & operator<<	(	string &	str,
		T const &	x
	)			[inline]

String serialize by appending to a string with the same syntax as the operator << (ostream &,T).

For example: string str; ... str << "t=" << t << "\n";

Definition at line 106 of file stringconvert.h.

{
  stringstream ss;
  ss << x;
  str += ss.str(); 

  return str;
}

template<typename T >

void stringfrom	(	T &	targ,
		stringc &	str
	)			[inline]

Convert from a string.

int x; string s="35"; stringfrom(x,s);

Definition at line 116 of file stringconvert.h.

Referenced by modulereport::compile_exitstatus(), visline::handlecommand(), mazematrixD2< T >::serializeInverse(), mazegameD2state01::serializeInverse(), gobjglColor3f::serializeInverse(), gobjglVertex3f::serializeInverse(), stringtagparsertest::test02(), misclib_testcode::tokenizertest::unittest03(), and modulereport::unittests_exitstatus().

{
  stringstream ss(str);
  ss >> targ;
}  

template<typename T >

stringc stringtag	(	T	x,
		stringc &	tag
	)			[inline]

Helper function to wrap data in tags.

Definition at line 94 of file stringconvert.h.

References stringto().

Referenced by modulereport::compilerhtmldetailed(), mazematrixD2< T >::operator stringc(), mazegameD2state01::operator stringc(), cireport::report01(), modulereport::unittestshtmldetailed(), modulereport::update(), modulereport::update01(), misclib_testcode::InventoryObj::xml(), projunittests::xml(), projunittest::xml(), unittestcmd::xml(), mkerrorscompiletag::xml(), and mkerrorscompile::xml().

{
  string s1 = "<" + tag + ">";
  s1 += stringto(x);
  s1 += ( "</" + tag + ">\n");
  return s1;
}

template<typename T >

stringc stringto

(

T const

data

)

[inline]

Convert to a string.

Function form of stringto.

Definition at line 131 of file stringconvert.h.

{
  stringstream ss;
  ss << data;
  return ss.str();
}

template<typename T >

void stringto	(	string &	str,
		T const	data
	)			[inline]

Convert to a string.

string s; stringto(s,36);

Definition at line 123 of file stringconvert.h.

Referenced by mazematrixD2< T >::operator stringc(), mazegameD2state01::operator stringc(), windowscaleD2::operator stringc(), mazedisp03::settings(), stringtag(), and stringtagparsertest::test02().

{
  stringstream ss;
  ss << data;
  str = ss.str();
}