// -*- C++ -*-
/* This file is part of
* ======================================================
- *
+ *
* LyX, The Document Processor
- *
+ *
* Copyright 1995 Matthias Ettrich
* Copyright 1995-2000 The LyX Team.
*
// right behavior.
#ifndef LYXSTRING_H
-#define LYXSTRING_H
+#define LYXSTRING_H
#ifdef __GNUG__
#pragma interface
#include <cstring> // for size_t
/** A string class for LyX
-
+
This is a permanent String class. It is modeled closely after the C++ STL
string class. In comparison with STL string lyxstring lack support for
reverse iterators and allocators, also char_traits is not used. In most
do things like #lyxstring a= "";#, especially not in constructors.
If you want to use a default empty lyxstring as a parameter, use
-
- #void foo(lyxstring par = lyxstring()); // Correct#
-
+
+ #void foo(lyxstring par = lyxstring()); // Correct#
+
rather than
- #void foo(lyxstring par = ""); // WRONG!#
- #void foo(lyxstring par = 0); // WRONG!#
+ #void foo(lyxstring par = ""); // WRONG!#
+ #void foo(lyxstring par = 0); // WRONG!#
(The last one is only wrong because some compilers can't handle it.)
Correct: & #foo.substring(0, length()-1);# \\
Wrong: & #bar.substring(0, length());#
\end{tabular}
-
+
It is important that you declare lyxstring as const if possible, because
some methods are much more efficient in const versions.
-
+
If you want to check whether a string is empty, do
- #if (foo.empty()) something right#
+ #if (foo.empty()) something right#
rather than something along the lines of
- #if (!foo) completely wrong#
+ #if (!foo) completely wrong#
When you want to copy an lyxstring, just do
-
+
#lyxstring a, b = "String";#
#a = b; // That's it!#
not something like
-
- #lyxstring a, b = "String";#
- #a = b.copy(); // This leaks. // and does not work either. #
-
+
+ #lyxstring a, b = "String";#
+ #a = b.copy(); // This leaks. // and does not work either. #
+
The class automatically handles deep copying when required.
*/
class lyxstring {
public:
/* Typedefs */
-
+
///
typedef char value_type;
constructors as STL, except the one using iterators, one other
difference is that lyxstring, do not allow the optional allocator
parameter. */
-
+
/// "all characters" marker
static const size_type npos;
- /// #lyxstring x;#
+ /// #lyxstring x;#
lyxstring();
-
- /// #lyxstring x(lyxstring ...)#
+
+ /// #lyxstring x(lyxstring ...)#
lyxstring(lyxstring const &, size_type pos = 0, size_type n = npos);
-
+
/// #lyxstring x("abc", 2) -> "ab"#
lyxstring(value_type const *, size_type n);
-
+
// #lyxstring x("abc")#
lyxstring(value_type const *);
-
+
/// lyxstring(5, 'n') -> "nnnnn"
lyxstring(size_type n, value_type c);
///
void reserve(size_type res_arg = 0);
-
+
///
lyxstring & operator=(lyxstring const &);
-
+
///
lyxstring & operator=(value_type const *);
-
+
///
lyxstring & operator=(value_type);
///
lyxstring & assign(lyxstring const &);
-
+
///
lyxstring & assign(lyxstring const &, size_type pos, size_type n);
-
+
///
lyxstring & assign(value_type const * p, size_type n);
-
+
///
lyxstring & assign(value_type const * p);
-
+
///
lyxstring & assign(size_type n, value_type c);
/// unchecked access
const_reference operator[](size_type) const;
-
+
/// unchecked access
reference operator[](size_type);
-
+
/// checked access
const_reference at(size_type) const;
-
+
/// checked access
reference at(size_type);
// add characters after (*this)[length()-1]:
-
+
///
lyxstring & operator+=(lyxstring const &);
-
+
///
lyxstring & operator+=(value_type const *);
-
+
///
lyxstring & operator+=(value_type);
///
lyxstring & insert(size_type pos, lyxstring const &);
-
+
///
lyxstring & insert(size_type pos, lyxstring const &,
size_type pos2, size_type n);
-
+
///
lyxstring & insert(size_type pos, value_type const * p,
size_type n);
}
}
#endif
-
+
///
size_type find(lyxstring const &, size_type i = 0) const;
-
+
///
size_type find(value_type const * p,
size_type i, size_type n) const;
-
+
///
size_type find(value_type const * p, size_type i = 0) const;
-
+
///
size_type find(value_type c, size_type i = 0) const;
///
size_type rfind(lyxstring const &, size_type i = npos) const;
-
+
///
size_type rfind(value_type const * p, size_type i, size_type n) const;
-
+
///
size_type rfind(value_type const * p, size_type i = npos) const;
-
+
///
size_type rfind(value_type c, size_type i = npos) const;
///
size_type find_first_of(lyxstring const &, size_type i = 0) const;
-
+
///
size_type find_first_of(value_type const * p, size_type i,
size_type n) const;
-
+
///
size_type find_first_of(value_type const * p, size_type i = 0) const;
-
+
///
size_type find_first_of(value_type c, size_type i = 0) const;
///
size_type find_last_of(lyxstring const &, size_type i = npos) const;
-
+
///
size_type find_last_of(value_type const * p, size_type i,
size_type n) const;
-
+
///
size_type find_last_of(value_type const * p, size_type i = npos) const;
-
+
///
size_type find_last_of(value_type c, size_type i = npos) const;
///
size_type find_first_not_of(lyxstring const &, size_type i = 0) const;
-
+
///
size_type find_first_not_of(value_type const * p, size_type i,
size_type n) const;
-
+
///
size_type find_first_not_of(value_type const * p,
size_type i = 0) const;
-
+
///
size_type find_first_not_of(value_type c, size_type i = 0) const;
///
size_type find_last_not_of(lyxstring const &,
size_type i = npos) const;
-
+
///
size_type find_last_not_of(value_type const * p, size_type i,
size_type n) const;
-
+
///
size_type find_last_not_of(value_type const * p,
size_type i = npos) const;
-
+
///
size_type find_last_not_of(value_type c, size_type i = npos) const;
///
void swap(lyxstring & str);
-
+
/// Erase n chars from position i.
lyxstring & erase(size_type i = 0, size_type n = npos);
///
iterator erase(iterator first, iterator last);
- ///
+ ///
value_type const * c_str() const;
/* Note that this is STL compilant, so you can not assume
size_type copy(value_type * buf, size_type len,
size_type pos = 0) const;
-
+
///
- int compare(lyxstring const & str) const;
+ int compare(lyxstring const & str) const;
///
int compare(value_type const * p) const;
///
int compare(size_type pos, size_type n, value_type const * p,
size_type n2 = npos) const;
-
-
+
+
///
lyxstring substr(size_type i = 0, size_type n = npos) const;
-
+
private:
// These three operators can be used to discover erronous use of
// ints and strings. However a conforming C++ compiler will flag
int internal_compare(size_type pos, size_type n,
value_type const * s,
size_type slen, size_type n2) const;
-
+
/// Forward declaration of the string representation
struct Srep;
// DEC cxx requires this.
projects / lyx.git / blobdiff