Function IsPrefixedNumberStart

scintilla/lexers/LexOScript.cxx:74–80

}

static inline bool IsPrefixedNumberStart(int ch, int chNext) {
	// KNOWN PROBLEM: if you put + or - operators immediately before a number
	// the operator will not be recognized and it will be styled together with
	// the succeeding number. This should not occur; at least not often. The
	// coding style recommends putting spaces around operators.
	return (ch == '.' || ch == '-' || ch == '+') && IsADigit(chNext);
}

static inline bool IsOperator(int ch) {
	return strchr("%^&*()-+={}[]:;<>,/?!.~|\\", ch) != NULL;