simpleformatter.h

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/*
******************************************************************************
* Copyright (C) 2014-2016, International Business Machines
* Corporation and others.  All Rights Reserved.
******************************************************************************
* simpleformatter.h
*/
 
#ifndef __SIMPLEFORMATTER_H__
#define __SIMPLEFORMATTER_H__
 
#include "unicode/utypes.h"
#include "unicode/unistr.h"
 
#ifndef U_HIDE_DRAFT_API
 
U_NAMESPACE_BEGIN
 
class U_COMMON_API SimpleFormatter U_FINAL : public UMemory {
public:
    SimpleFormatter() : compiledPattern((UChar)0) {}
 
    SimpleFormatter(const UnicodeString& pattern, UErrorCode &errorCode) {
        applyPattern(pattern, errorCode);
    }
 
    SimpleFormatter(const UnicodeString& pattern, int32_t min, int32_t max,
                    UErrorCode &errorCode) {
        applyPatternMinMaxArguments(pattern, min, max, errorCode);
    }
 
    SimpleFormatter(const SimpleFormatter& other)
            : compiledPattern(other.compiledPattern) {}
 
    SimpleFormatter &operator=(const SimpleFormatter& other);
 
    ~SimpleFormatter();
 
    UBool applyPattern(const UnicodeString &pattern, UErrorCode &errorCode) {
        return applyPatternMinMaxArguments(pattern, 0, INT32_MAX, errorCode);
    }
 
    UBool applyPatternMinMaxArguments(const UnicodeString &pattern,
                                      int32_t min, int32_t max, UErrorCode &errorCode);
 
    int32_t getArgumentLimit() const {
        return getArgumentLimit(compiledPattern.getBuffer(), compiledPattern.length());
    }
 
    UnicodeString &format(
            const UnicodeString &value0,
            UnicodeString &appendTo, UErrorCode &errorCode) const;
 
    UnicodeString &format(
            const UnicodeString &value0,
            const UnicodeString &value1,
            UnicodeString &appendTo, UErrorCode &errorCode) const;
 
    UnicodeString &format(
            const UnicodeString &value0,
            const UnicodeString &value1,
            const UnicodeString &value2,
            UnicodeString &appendTo, UErrorCode &errorCode) const;
 
    UnicodeString &formatAndAppend(
            const UnicodeString *const *values, int32_t valuesLength,
            UnicodeString &appendTo,
            int32_t *offsets, int32_t offsetsLength, UErrorCode &errorCode) const;
 
    UnicodeString &formatAndReplace(
            const UnicodeString *const *values, int32_t valuesLength,
            UnicodeString &result,
            int32_t *offsets, int32_t offsetsLength, UErrorCode &errorCode) const;
 
    UnicodeString getTextWithNoArguments() const {
        return getTextWithNoArguments(compiledPattern.getBuffer(), compiledPattern.length());
    }
 
private:
    UnicodeString compiledPattern;
 
    static inline int32_t getArgumentLimit(const UChar *compiledPattern,
                                              int32_t compiledPatternLength) {
        return compiledPatternLength == 0 ? 0 : compiledPattern[0];
    }
 
    static UnicodeString getTextWithNoArguments(const UChar *compiledPattern, int32_t compiledPatternLength);
 
    static UnicodeString &format(
            const UChar *compiledPattern, int32_t compiledPatternLength,
            const UnicodeString *const *values,
            UnicodeString &result, const UnicodeString *resultCopy, UBool forbidResultAsValue,
            int32_t *offsets, int32_t offsetsLength,
            UErrorCode &errorCode);
};
 
U_NAMESPACE_END
 
#endif /* U_HIDE_DRAFT_API */
 
#endif  // __SIMPLEFORMATTER_H__