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add generic macro expansion classes & functions to Utils

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AbstractMacroExpander (any macros), AbstractQtcMacroExpander (%{var}
style macros, which is a hybrid of printf format specifiers and unix
environment expansions) and expandMacros() for the actual string
manipulation.
This commit is contained in:
Oswald Buddenhagen
2010-11-08 21:09:19 +01:00
parent a2b6391b31
commit 9bd95ade08
3 changed files with 112 additions and 0 deletions
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24
src/libs/utils/stringutils.h
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@@ -55,6 +55,30 @@ QTCREATOR_UTILS_EXPORT QString commonPath(const QStringList &files);
// If path is not sub of home path, or when running on Windows, returns the input
QTCREATOR_UTILS_EXPORT QString withTildeHomePath(const QString &path);
class QTCREATOR_UTILS_EXPORT AbstractMacroExpander {
public:
// Not const, as it may change the state of the expander.
//! Find an expando to replace and provide a replacement string.
//! \param str The string to scan
//! \param pos Position to start scan on input, found position on output
//! \param ret Replacement string on output
//! \return Length of string part to replace, zero if no (further) matches found
virtual int findMacro(const QString &str, int *pos, QString *ret) = 0;
};
class QTCREATOR_UTILS_EXPORT AbstractQtcMacroExpander : public AbstractMacroExpander {
public:
virtual int findMacro(const QString &str, int *pos, QString *ret);
//! Provide a replacement string for an expando
//! \param name The name of the expando
//! \param ret Replacement string on output
//! \return True if the expando was found
virtual bool resolveMacro(const QString &name, QString *ret) = 0;
};
QTCREATOR_UTILS_EXPORT void expandMacros(QString *str, AbstractMacroExpander *mx);
QTCREATOR_UTILS_EXPORT QString expandMacros(const QString &str, AbstractMacroExpander *mx);
} // namespace Utils
#endif // SETTINGSTUTILS_H