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#ifndef SC_STRINGUTIL_HXX
#define SC_STRINGUTIL_HXX

#include "rtl/ustring.hxx"
#include "scdllapi.h"

class SvNumberFormatter;

/**
 * Store parameters used in the ScDocument::SetString() method.  Various
 * options for string-setting operation are specified herein.
 */
struct SC_DLLPUBLIC ScSetStringParam
{
    enum TextFormatPolicy
    {
        /**
         * Set Text number format no matter what the input string is.
         */
        Always,

        /**
         * Set Text number format only when the input string is considered a
         * special number but we only want to detect a simple number.
         */
        SpecialNumberOnly,

        /**
         * Never set Text number format.
         */
        Never
    };

    /**
     * Stores the pointer to the number formatter instance to be used during
     * number format detection.  The caller must manage the life cycle of the
     * instance.
     */
    SvNumberFormatter* mpNumFormatter;

    /**
     * When true, we try to detect special number format (dates etc) from the
     * input string, when false, we only try to detect a basic decimal number
     * format.
     */
    bool mbDetectNumberFormat;

    /**
     * Determine when to set the 'Text' number format to the cell where the
     * input string is being set.
     */
    TextFormatPolicy meSetTextNumFormat;

    /**
     * When true, treat input with a leading apostrophe / single quote special
     * in that it escapes numeric or date/time input such that it is not
     * interpreted and the input string is taken instead. This can be used
     * during text file import so the leading apostrophe is not lost if it
     * precedes a numeric value.
     * Usually set mbHandleApostrophe = !mbSetTextCellFormat
     */
    bool mbHandleApostrophe;

    ScSetStringParam();
};

// ============================================================================

class ScStringUtil
{
public:
    /**
     * Check if a given string is a simple decimal number (e.g. 12.345). We
     * don't do any elaborate parsing here; we only check for the simplest
     * case of decimal number format.
     *
     * Note that preceding and trailing spaces are ignored during parsing.
     *
     * @param rStr string to parse
     * @param dsep decimal separator
     * @param gsep group separator (aka thousands separator)
     * @param rVal value of successfully parsed number
     *
     * @return true if the string is a valid number, false otherwise.
     */
    static bool parseSimpleNumber(
        const ::rtl::OUString& rStr, sal_Unicode dsep, sal_Unicode gsep, double& rVal);
};


#endif

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