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ICU 54.1
54.1
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A helper class for formatting numbers in standard scientific notation instead of E notation. More...
#include <scientificformathelper.h>
Public Member Functions | |
| ScientificFormatHelper (const DecimalFormatSymbols &symbols, UErrorCode &status) | |
| Constructor. | |
| ScientificFormatHelper (const ScientificFormatHelper &other) | |
| Copy constructor. | |
| ScientificFormatHelper & | operator= (const ScientificFormatHelper &other) |
| Assignment operator. | |
| virtual | ~ScientificFormatHelper () |
| Destructor. | |
| UnicodeString & | insertMarkup (const UnicodeString &s, FieldPositionIterator &fpi, const UnicodeString &beginMarkup, const UnicodeString &endMarkup, UnicodeString &result, UErrorCode &status) const |
| Formats standard scientific notation by surrounding exponent with html to make it superscript. | |
| UnicodeString & | toSuperscriptExponentDigits (const UnicodeString &s, FieldPositionIterator &fpi, UnicodeString &result, UErrorCode &status) const |
| Formats standard scientific notation by using superscript unicode points 0..9. | |
Public Member Functions inherited from icu::UObject | |
| virtual | ~UObject () |
| Destructor. | |
| virtual UClassID | getDynamicClassID () const |
| ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class. | |
A helper class for formatting numbers in standard scientific notation instead of E notation.
Sample code:
UErrorCode status = U_ZERO_ERROR; DecimalFormat *decfmt = (DecimalFormat *) NumberFormat::createScientificInstance("en", status); UnicodeString appendTo; FieldPositionIterator fpositer; decfmt->format(1.23456e-78, appendTo, &fpositer, status); ScientificFormatHelper helper(*decfmt->getDecimalFormatSymbols(), status); UnicodeString result;
// result = "1.23456x10<sup>-78</sup>" helper.insertMarkup(appendTo, fpositer, "<sup>", "</sup>", result, status));
Definition at line 51 of file scientificformathelper.h.
| icu::ScientificFormatHelper::ScientificFormatHelper | ( | const DecimalFormatSymbols & | symbols, |
| UErrorCode & | status | ||
| ) |
Constructor.
| symbols | comes from DecimalFormat instance used for default scientific notation. |
| status | any error reported here. |
| icu::ScientificFormatHelper::ScientificFormatHelper | ( | const ScientificFormatHelper & | other | ) |
Copy constructor.
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virtual |
Destructor.
| UnicodeString& icu::ScientificFormatHelper::insertMarkup | ( | const UnicodeString & | s, |
| FieldPositionIterator & | fpi, | ||
| const UnicodeString & | beginMarkup, | ||
| const UnicodeString & | endMarkup, | ||
| UnicodeString & | result, | ||
| UErrorCode & | status | ||
| ) | const |
Formats standard scientific notation by surrounding exponent with html to make it superscript.
| s | the original formatted scientific notation e.g "6.02e23". s is output from NumberFormat::createScientificInstance()->format(). |
| fpi | the FieldPositionIterator from the format call. fpi is output from NumberFormat::createScientificInstance()->format(). |
| beginMarkup | the start html for the exponent e.g "<sup>" |
| endMarkup | the end html for the exponent e.g "</sup>" |
| result | standard scientific notation appended here. |
| status | any error returned here. When status is set to a non-zero error, the value of result is unspecified, and client should fallback to using s for scientific notation. |
| ScientificFormatHelper& icu::ScientificFormatHelper::operator= | ( | const ScientificFormatHelper & | other | ) |
Assignment operator.
| UnicodeString& icu::ScientificFormatHelper::toSuperscriptExponentDigits | ( | const UnicodeString & | s, |
| FieldPositionIterator & | fpi, | ||
| UnicodeString & | result, | ||
| UErrorCode & | status | ||
| ) | const |
Formats standard scientific notation by using superscript unicode points 0..9.
| s | the original formatted scientific notation e.g "6.02e23". s is output from NumberFormat::createScientificInstance()->format(). |
| fpi | the FieldPositionIterator from the format call. fpi is output from NumberFormat::createScientificInstance()->format(). |
| result | standard scientific notation appended here. |
| status | any error returned here. When status is set to a non-zero error, the value of result is unspecified, and client should fallback to using s for scientific notation. |
1.8.1.2