include/common/string.h

/*
 * Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
 * Rights to this code are as documented in doc/pod/gplicense.pod.
 *
 * Various string structures and functions.
 *
 * $Id: string.h,v 1.1 2007-07-25 01:05:17 pippijn Exp $
 */

#ifndef ERMYTH_STRING_H
#define ERMYTH_STRING_H

void assign (char *dst, char const *src, size_t maxlen);

template<size_t N>
inline void assign (char (&dst)[N], char const *src)
{
  assign ((char *)&dst, src, N);
}

/* static string */
struct ststr
{
  ststr (char const * const initstr)
  : m_rep (initstr)
  {
  }

  ststr (ststr &initstr)
  : m_rep (initstr)
  {
  }

  char const *c_str () const
  {
    return m_rep;
  }

  operator char const * () const
  {
    return c_str ();
  }

  friend std::ostream &operator << (std::ostream &os, ststr const &rhs)
  {
    os << rhs.c_str ();
    return os;
  }

private:
  char const * const m_rep;
};

// dynamic string
struct dynstr : zero_initialised
{
  dynstr (size_t initlength = 32)
  : m_rep (new char[size]), pos (0), size (initlength)
  {
  }

  ~dynstr ()
  {
    delete[] m_rep;
  }

  void reset ()
  {
    m_rep[0] = '\0';
    pos = 0;
  }

  char const *c_str () const
  {
    return m_rep;
  }

  operator char const * () const
  {
    return c_str ();
  }

  size_t length ()
  {
    return pos;
  }

  dynstr &operator = (char const *rhs)
  {
    reset ();
    append (rhs, strlen (rhs));
    return *this;
  }

  int append (char const c);
  int append_nonul (char const c);
  int append (char const * const src, size_t size);
  int append_nonul (char const * const src, size_t size);

  int append_unguarded (char const c);
  int append_unguarded_nonul (char const c);
  int append_unguarded (char const * const src, size_t size);
  int append_unguarded_nonul (char const * const src, size_t size);

private:
  char *m_rep;
  size_t pos;
  size_t size;
};

#endif
Revision:	1.2
Committed:	Tue Aug 28 17:08:07 2007 UTC (19 years, 1 month ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+48 -9 lines
Log Message:	- changed name - updated the example config to the new system - added more documentation - enhanced documentation generators - added a link to the pdf to the website - added an RSS feed generator - transitioned hooks to c++ callbacks - did various merges with upstream along the way - added const where appropriate - removed the old block allocator - fixed most memory leaks - transitioned some dictionaries to std::map - transitioned some lists to std::vector - made some free functions members where appropriate - renamed string to dynstr and added a static string ststr - use NOW instead of time (NULL) if possible - completely reworked database backends, crypto handlers and protocol handlers to use an object factory - removed the old module system. ermyth does not do any dynamic loading anymore - fixed most of the build system - reworked how protocol commands work
#	User	Rev	Content
1	pippijn	1.1	/*
2			* Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
3			* Rights to this code are as documented in doc/pod/gplicense.pod.
4			*
5			* Various string structures and functions.
6			*
7	pippijn	1.2	* $Id: string.h,v 1.1 2007-07-25 01:05:17 pippijn Exp $
8	pippijn	1.1	*/
9
10	pippijn	1.2	#ifndef ERMYTH_STRING_H
11			#define ERMYTH_STRING_H
12	pippijn	1.1
13			void assign (char dst, char const src, size_t maxlen);
14
15			template<size_t N>
16			inline void assign (char (&dst)[N], char const *src)
17			{
18			assign ((char *)&dst, src, N);
19			}
20
21	pippijn	1.2	/* static string */
22			struct ststr
23	pippijn	1.1	{
24	pippijn	1.2	ststr (char const * const initstr)
25			: m_rep (initstr)
26	pippijn	1.1	{
27			}
28
29	pippijn	1.2	ststr (ststr &initstr)
30			: m_rep (initstr)
31			{
32			}
33
34			char const *c_str () const
35			{
36			return m_rep;
37			}
38
39			operator char const * () const
40			{
41			return c_str ();
42			}
43
44			friend std::ostream &operator << (std::ostream &os, ststr const &rhs)
45			{
46			os << rhs.c_str ();
47			return os;
48			}
49
50			private:
51			char const * const m_rep;
52			};
53
54			// dynamic string
55			struct dynstr : zero_initialised
56			{
57			dynstr (size_t initlength = 32)
58			: m_rep (new char[size]), pos (0), size (initlength)
59			{
60			}
61
62			~dynstr ()
63	pippijn	1.1	{
64			delete[] m_rep;
65			}
66
67			void reset ()
68			{
69			m_rep[0] = '\0';
70			pos = 0;
71			}
72
73	pippijn	1.2	char const *c_str () const
74	pippijn	1.1	{
75			return m_rep;
76			}
77
78	pippijn	1.2	operator char const * () const
79			{
80			return c_str ();
81			}
82
83	pippijn	1.1	size_t length ()
84			{
85			return pos;
86			}
87
88	pippijn	1.2	dynstr &operator = (char const *rhs)
89	pippijn	1.1	{
90			reset ();
91			append (rhs, strlen (rhs));
92			return *this;
93			}
94
95			int append (char const c);
96			int append_nonul (char const c);
97			int append (char const * const src, size_t size);
98			int append_nonul (char const * const src, size_t size);
99
100			int append_unguarded (char const c);
101			int append_unguarded_nonul (char const c);
102			int append_unguarded (char const * const src, size_t size);
103			int append_unguarded_nonul (char const * const src, size_t size);
104
105			private:
106			char *m_rep;
107			size_t pos;
108			size_t size;
109			};
110
111			#endif