#include "support/docstring.h"
-#include <string>
#include <vector>
/// Does not depend on the locale.
int compare_no_case(docstring const & s, docstring const & s2);
+/// Compare \p s and \p s2 using the collating rules of the current locale.
+int compare_locale(docstring const & s, docstring const & s2);
+
/// Compare \p s and \p s2, ignoring the case of ASCII characters only.
int compare_ascii_no_case(std::string const & s, std::string const & s2);
///
bool isStrDbl(std::string const & str);
+/// does the string contain a digit?
+bool hasDigitASCII(docstring const & str);
+
+bool isHexChar(char_type);
+
bool isHex(docstring const & str);
int hexToInt(docstring const & str);
/// Does not depend on the locale.
char_type uppercase(char_type c);
+/// Checks if the supplied character is lower-case
+bool isLowerCase(char_type ch);
+
+/// Checks if the supplied character is upper-case
+bool isUpperCase(char_type ch);
+
/// same as lowercase(), but ignores locale
std::string const ascii_lowercase(std::string const &);
docstring const ascii_lowercase(docstring const &);
/// Changes the case of \p s to lowercase.
/// Does not depend on the locale.
docstring const lowercase(docstring const & s);
+// Currently unused, but the code is there if needed.
+// std::string const lowercase(std::string const & s);
/// Changes the case of \p s to uppercase.
/// Does not depend on the locale.
docstring const uppercase(docstring const & s);
+/// Returns the superscript of \p c or \p c if no superscript exists.
+/// Does not depend on the locale.
+char_type superscript(char_type c);
+
+/// Returns the subscript of \p c or \p c if no subscript exists.
+/// Does not depend on the locale.
+char_type subscript(char_type c);
+
/// Does str start with c?
bool prefixIs(docstring const & str, char_type c);
docstring const subst(docstring const & a,
docstring const & oldstr, docstring const & newstr);
+/// Count all occurences of char \a chr inside \a str
+int count_char(std::string const & str, char chr);
+
+/// Count all occurences of char \a chr inside \a str
+int count_char(docstring const & str, docstring::value_type chr);
+
+/** Count all occurences of binary chars inside \a str.
+ It is assumed that \a str is utf-8 encoded and that a binary char
+ belongs to the unicode class names Zl, Zp, Cc, Cf, Cs, Co, or Cn
+ (excluding white space characters such as '\t', '\n', '\v', '\f', '\r').
+ See http://www.unicode.org/Public/6.2.0/ucd/UnicodeData.txt
+*/
+int count_bin_chars(std::string const & str);
+
/** Trims characters off the end and beginning of a string.
\code
trim("ccabccc", "c") == "ab".
docstring const ltrim(docstring const & a, char const * p = " ");
/** Splits the string given in the first argument at the first occurence
- of the third argumnent, delim.
+ of the third argument, delim.
What precedes delim is returned in the second argument, piece; this
will be the whole of the string if no delimiter is found.
The return value is what follows delim, if anything. So the return
value is the null string if no delimiter is found.
+ 'a' and 'piece' must be different variables.
Examples:
\code
s1= "a;bc"; s2= ""
/// Same as split but uses the last delim.
std::string const rsplit(std::string const & a, std::string & piece, char delim);
+docstring const rsplit(docstring const & a, docstring & piece, char_type delim);
docstring const rsplit(docstring const & a, char_type delim);
/// Escapes non ASCII chars and other problematic characters that cause
/// problems in latex labels.
docstring const escape(docstring const & lab);
+/// Truncates a string with an ellipsis at the end. Leaves str unchanged and
+/// returns false if it is shorter than len. Otherwise resizes str to len, with
+/// U+2026 HORIZONTAL ELLIPSIS at the end, and returns true.
+///
+/// Warning (Unicode): The cases where we want to truncate the text and it does
+/// not end up converted into a QString for UI display must be really
+/// rare. Whenever possible, we should prefer calling QFontMetrics::elidedText()
+/// instead, which takes into account the actual length on the screen and the
+/// layout direction (RTL or LTR). Or a similar function taking into account the
+/// font metrics from the buffer view, which still has to be defined. Or set up
+/// the widgets such that Qt elides the string automatically with the exact
+/// needed width. Recall that not only graphemes vary greatly in width, but also
+/// can be made of several code points. See:
+/// <http://utf8everywhere.org/#myth.strlen>
+///
+/// What is acceptable is when we know that the string is probably going to be
+/// elided by Qt anyway, and len is chosen such that our own ellipsis will only
+/// be displayed in worst-case scenarios.
+///
+/// FIXME: apply those principles in the current code.
+///
+bool truncateWithEllipsis(docstring & str, size_t const len);
+
/// Word-wraps the provided docstring, returning a line-broken string
/// of width no wider than width, with the string broken at spaces.
/// If the string cannot be broken appropriately, it returns something
/// If indent is positive, then the first line is indented that many
/// spaces. If it is negative, then successive lines are indented, as
/// if the first line were "outdented".
+///
+/// Warning (Unicode): uses truncateWithEllipsis() internally. Therefore it is
+/// subject to the same warning and FIXME as above.
+///
docstring wrap(docstring const & str, int const indent = 0,
size_t const width = 80);
/// that may contain embedded newlines.
/// \param numlines Don't return more than numlines lines. If numlines
/// is 0, we return everything.
+///
+/// Warning (Unicode): uses truncateWithEllipsis() internally. Therefore it is
+/// subject to the same warning and FIXME as above.
+///
docstring wrapParas(docstring const & str, int const indent = 0,
size_t const width = 80, size_t const maxlines = 10);
/// found, else -1. The last item in \p str must be "".
int findToken(char const * const str[], std::string const & search_token);
+
+/// Format a floating point number with at least 6 siginificant digits, but
+/// without scientific notation.
+/// Scientific notation would be invalid in some contexts, such as lengths for
+/// LaTeX. Simply using std::ostream with std::fixed would produce results
+/// like "1000000.000000", and precision control would not be that easy either.
+std::string formatFPNumber(double);
+
+
template <class Arg1>
docstring bformat(docstring const & fmt, Arg1);
template<> docstring bformat(docstring const & fmt, int arg1);
template<> docstring bformat(docstring const & fmt, long arg1);
+#ifdef LYX_USE_LONG_LONG
+template<> docstring bformat(docstring const & fmt, long long arg1);
+#endif
template<> docstring bformat(docstring const & fmt, unsigned int arg1);
template<> docstring bformat(docstring const & fmt, docstring arg1);
template<> docstring bformat(docstring const & fmt, char * arg1);
projects / lyx.git / blobdiff