lyx_mirror/src/support/textutils.h
Kornel Benko 82af8778f1 Introduce isNumberChar(char_type) function
In FindAdv we use Qt to interpret regular expressions.
Regex uses for instance '\w', '\d' etc.
'\d' finds not just '0-9' but also e.g. '߂' (Nko Digit Two: U+07c2)
'\w' includes also such numbers.

ATM, only FindAdv uses this function.
2022-05-29 12:16:53 +02:00

73 lines
1.9 KiB
C++

// -*- C++ -*-
/**
* \file textutils.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Matthias Ettrich
* \author Lars Gullik Bjønnes
*
* Full author contact details are available in file CREDITS.
*/
// FIXME: I can think of a better name for this file ...
#ifndef TEXTUTILS_H
#define TEXTUTILS_H
#include "support/strfwd.h"
namespace lyx {
/// return true if the char is a line separator
inline bool isLineSeparatorChar(char_type c) { return c == ' '; }
/// return true if a char is alphabetical (including accented chars)
bool isLetterChar(char_type c);
/// return true if a char is lowercase
bool isLower(char_type c);
/// return whether \p c is an alphabetic character in the ASCII range
bool isAlphaASCII(char_type c);
/// return true if the char is printable
bool isPrintable(char_type c);
/// return true if the char is printable and not a space
bool isPrintableNonspace(char_type c);
/// return true if a unicode char is a space.
bool isSpace(char_type c);
/// return true if a unicode char is a numeral.
bool isNumber(char_type c);
/// return true if a unicode char has the direction attribute
/// Common Number Separator [CS]
bool isCommonNumberSeparator(char_type c);
/// return true if a unicode char has the direction attribute
/// European Number Terminator [ET]
bool isEuropeanNumberTerminator(char_type c);
/// return whether \p c is a digit in the ASCII range
bool isDigitASCII(char_type c);
/// return whether \p c is a digit (not just 0-9)
bool isNumberChar(char_type c);
/// return whether \p c is alpha or a digit in the ASCII range
bool isAlnumASCII(char_type c);
/// return whether \p c is in the ASCII range
bool isASCII(char_type c);
/// return whether \p c is in the 'Punctuation, Open' unicode category
bool isOpenPunctuation(char_type c);
} // namespace lyx
#endif // TEXTUTILS_H