lyx_mirror/src/support/textutils.h

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// -*- C++ -*-
/**
* \file textutils.h
* Copyright 1995-2002 the LyX Team
* Read the file COPYING
*
* \author unknown
*/
// FIXME: I can think of a better name for this file ...
#ifndef TEXTUTILS_H
#define TEXTUTILS_H
/// return true if the char is a meta-character newline
inline
bool IsNewlineChar(char c) {
return (c == Paragraph::META_NEWLINE);
}
/// return true if the char is a word separator
inline
bool IsSeparatorChar(char c) {
return (c == ' ');
}
/// return true if the char is a line separator
inline
bool IsLineSeparatorChar(char c) {
return (c == ' ');
}
/// return true if the char is a meta-character for hfill
inline
bool IsHfillChar(char c) {
return (c == Paragraph::META_HFILL);
}
/// return true if the char is a meta-character for an inset
inline
bool IsInsetChar(char c) {
return (c == Paragraph::META_INSET);
}
/// return true if the char is "punctuation"
inline
bool IsKommaChar(char c) {
return (c == ','
|| c == '('
|| c == ')'
|| c == '['
|| c == ']'
|| c == '{'
|| c == '}'
|| c == ';'
|| c == '.'
|| c == ':'
|| c == '-'
|| c == '?'
|| c == '!'
|| c == '&'
|| c == '@'
|| c == '+'
|| c == '-'
|| c == '~'
|| c == '#'
|| c == '%'
|| c == '^'
|| c == '/'
|| c == '\\'
|| c == Paragraph::META_NEWLINE
);
}
/// return true if a char is alphabetical (including accented chars)
inline
bool IsLetterChar(unsigned char c) {
return ((c >= 'A' && c <= 'Z')
|| (c >= 'a' && c <= 'z')
|| (c >= 192)); // in iso-8859-x these are accented chars
}
/// return true if the char is printable (masked to 7-bit ASCII)
inline
bool IsPrintable(unsigned char c) {
return ((c & 127) >= ' ');
}
/// return true if the char is printable and not a space (masked to 7-bit ASCII)
inline
bool IsPrintableNonspace(unsigned char c) {
return IsPrintable(c) && (c != ' ');
}
/// return true if the char forms part of a word
inline
bool IsWordChar(unsigned char c) {
return !(IsSeparatorChar(c)
|| IsKommaChar(c)
|| IsHfillChar(c)
|| IsInsetChar(c));
}
/// completely pointless FIXME
inline
bool IsDigit(unsigned char ch)
{
return ch >= '0' && ch <= '9';
}
/// return true if the char is alphanumeric
inline
bool IsLetterCharOrDigit(unsigned char ch)
{
return IsLetterChar(ch) || IsDigit(ch);
}
#endif // TEXTUTILS_H