regExp:
- added optional ignoreCase for constructor.
- the compile() methods is now exposed as set(...) method with an optional
ignoreCase argument. Not currently much use for the other regex compile
flags though. The set() method can be used directly instead of the
operator=() assignment.
keyType + wordRe:
- it's not clear that any particular characters are valid/invalid (compared
to string or word), so just drop the valid(char) method for now
wordRe:
- a bool doesn't suffice, added enum compOption (compile-option)
- most constructors now have a compOption. In *all* cases it defaults to
LITERAL - ie, the same behaviour for std::string and Foam::string
- added set(...) methods that do much the same as operator=(...), but the
compOption can be specified. In all cases, it defaults to DETECT.
In Summary
By default the constructors will generally preserve the argument as
string literal and the assignment operators will use the wordRe::DETECT
compOption to scan the string for regular expression meta characters
and/or invalid word characters and react accordingly.
The exceptions are when constructing/assigning from another
Foam::wordRe (preserve the same type) or from a Foam::word (always
literal).
- a possible future replacement for keyType, but the immediate use is the
wordReList for grepping through other lists.
- note that the argList treatment of '(' ... ')' yields quoted strings,
which we can use for building a wordReList
minor cleanup of regExp class
- constructor from std::string, match std::string and
operator=(std::string&)
rely on automatic conversion to Foam::string
- ditch partialMatch with sub-groups, it doesn't make much sense
