X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fdocstring.h;h=8c9a1f56d016bf930128a0c9bf5a6eb3045505bb;hb=848c89564fce9c4bfec79b915746dc6bc47abc3d;hp=9f54f0eaaa1c45b1062e6b4b6550a19f201e4ba0;hpb=c46b7d89553209b8df4e9de392ee07ef711f092f;p=lyx.git

diff --git a/src/support/docstring.h b/src/support/docstring.h
index 9f54f0eaaa..8c9a1f56d0 100644
--- a/src/support/docstring.h
+++ b/src/support/docstring.h
@@ -4,11 +4,8 @@
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
- * Provide a set of typedefs for commonly used things like sizes and
- * indices wile trying to stay compatible with types used
- * by the standard containers.
- *
- * \author André Pönitz
+ * \author Lars Gullik Bjønnes
+ * \author Georg Baum
  *
  * Full author contact details are available in file CREDITS.
  */
@@ -16,13 +13,205 @@
 #ifndef LYX_DOCSTRING_H
 #define LYX_DOCSTRING_H
 
-#include <boost/cstdint.hpp>
+#include "support/types.h"
+
 #include <string>
+#include <typeinfo>
 
 namespace lyx {
 
-typedef std::basic_string<boost::uint32_t> docstring;
+/// String type for storing the main text in UCS4 encoding
+typedef std::basic_string<char_type> docstring;
+
+/// Creates a docstring from a C string of ASCII characters
+docstring const from_ascii(char const *);
+
+/// Creates a docstring from a std::string of ASCII characters
+docstring const from_ascii(std::string const &);
+
+/// Creates a std::string of ASCII characters from a docstring
+std::string const to_ascii(docstring const &);
+
+/// Creates a docstring from a UTF8 string. This should go eventually.
+docstring const from_utf8(std::string const &);
+
+/// Creates a UTF8 string from a docstring. This should go eventually.
+std::string const to_utf8(docstring const &);
+
+/// convert \p s from the encoding of the locale to ucs4.
+docstring const from_local8bit(std::string const & s);
+
+/// Exception thrown by to_local8bit if the string could not be converted
+class to_local8bit_failure : public std::bad_cast {
+public:
+	to_local8bit_failure() throw() : std::bad_cast() {}
+	virtual ~to_local8bit_failure() throw() {}
+	virtual const char* what() const throw();
+};
+
+/**
+ * Convert \p s from ucs4 to the encoding of the locale.
+ * This may fail and throw an exception, the caller is expected to act
+ * appropriately.
+ */
+std::string const to_local8bit(docstring const & s);
+
+/// convert \p s from the encoding of the file system to ucs4.
+docstring const from_filesystem8bit(std::string const & s);
+
+/// convert \p s from ucs4 to the encoding of the file system.
+std::string const to_filesystem8bit(docstring const & s);
+
+/// normalize \p s to precomposed form c
+docstring const normalize_c(docstring const & s);
+
+/// Compare a docstring with a C string of ASCII characters
+bool operator==(lyx::docstring const &, char const *);
+
+/// Compare a C string of ASCII characters with a docstring
+inline bool operator==(char const * l, lyx::docstring const & r) { return r == l; }
+
+/// Compare a docstring with a C string of ASCII characters
+inline bool operator!=(lyx::docstring const & l, char const * r) { return !(l == r); }
 
+/// Compare a C string of ASCII characters with a docstring
+inline bool operator!=(char const * l, lyx::docstring const & r) { return !(r == l); }
+
+/// Concatenate a docstring and a C string of ASCII characters
+lyx::docstring operator+(lyx::docstring const &, char const *);
+
+/// Concatenate a C string of ASCII characters and a docstring
+lyx::docstring operator+(char const *, lyx::docstring const &);
+
+/// Concatenate a docstring and a single ASCII character
+lyx::docstring operator+(lyx::docstring const & l, char r);
+
+/// Concatenate a single ASCII character and a docstring
+lyx::docstring operator+(char l, lyx::docstring const & r);
+
+/// Append a C string of ASCII characters to a docstring
+lyx::docstring & operator+=(lyx::docstring &, char const *);
+
+/// Append a single ASCII character to a docstring
+lyx::docstring & operator+=(lyx::docstring & l, char r);
+
+} // namespace lyx
+
+
+#if ! defined(USE_WCHAR_T) && defined(__GNUC__) && defined(__GNUC_MINOR__) && __GNUC__ == 3 && __GNUC_MINOR__ < 4
+// Missing char_traits methods in gcc 3.3 and older. Taken from gcc 4.2svn.
+namespace std {
+
+template<typename T> void
+char_traits<T>::assign(char_type & c1, char_type const & c2)
+{
+	c1 = c2;
+}
+
+
+template<typename T> bool
+char_traits<T>::eq(char_type const & c1, char_type const & c2)
+{
+	return c1 == c2;
 }
 
+
+template<typename T> bool
+char_traits<T>::lt(char_type const & c1, char_type const & c2)
+{
+	return c1 < c2;
+}
+
+
+template<typename T> int
+char_traits<T>::compare(char_type const * s1, char_type const * s2, std::size_t n)
+{
+	for (std::size_t i = 0; i < n; ++i)
+		if (lt(s1[i], s2[i]))
+			return -1;
+		else if (lt(s2[i], s1[i]))
+			return 1;
+	return 0;
+}
+
+
+template<typename T> std::size_t
+char_traits<T>::length(char_type const * p)
+{
+	std::size_t i = 0;
+	while (!eq(p[i], char_type()))
+		++i;
+	return i;
+}
+
+
+template<typename T> typename char_traits<T>::char_type const *
+char_traits<T>::find(char_type const * s, size_t n, char_type const & a)
+{
+	for (std::size_t i = 0; i < n; ++i)
+		if (eq(s[i], a))
+			return s + i;
+	return 0;
+}
+
+
+template<typename T> typename char_traits<T>::char_type *
+char_traits<T>::move(char_type * s1, char_type const * s2, std::size_t n)
+{
+	return static_cast<T *>(std::memmove(s1, s2, n * sizeof(char_type)));
+}
+
+
+template<typename T> typename char_traits<T>::char_type *
+char_traits<T>::copy(char_type * s1, char_type const * s2, std::size_t n)
+{
+	std::copy(s2, s2 + n, s1);
+	return s1;
+}
+
+
+template<typename T> typename char_traits<T>::char_type *
+char_traits<T>::assign(char_type * s, std::size_t n, char_type a)
+{
+	std::fill_n(s, n, a);
+	return s;
+}
+
+
+template<typename T> typename char_traits<T>::char_type
+char_traits<T>::to_char_type(int_type const & c)
+{
+	return static_cast<char_type>(c);
+}
+
+
+template<typename T> typename char_traits<T>::int_type
+char_traits<T>::to_int_type(char_type const & c)
+{
+	return static_cast<int_type>(c);
+}
+
+
+template<typename T> bool
+char_traits<T>::eq_int_type(int_type const & c1, int_type const & c2)
+{
+	return c1 == c2;
+}
+
+
+template<typename T> typename char_traits<T>::int_type
+char_traits<T>::eof()
+{
+	return static_cast<int_type>(EOF);
+}
+
+
+template<typename T> typename char_traits<T>::int_type
+char_traits<T>::not_eof(int_type const & c)
+{
+	return !eq_int_type(c, eof()) ? c : to_int_type(char_type());
+}
+
+}
+#endif
 #endif