XSLT 2.0 and XPath 2.0 Programmer's Reference, 4th Edition (462 page)
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Authors: Michael Kay
BOOK: XSLT 2.0 and XPath 2.0 Programmer's Reference, 4th Edition
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 E must be a capitalE. Apart from these constraints, the system can choose any string that preserves the original value when converted back to a double.If you want a more user-friendly representation of the number, XSLT allows you to control the formatting using the format-number() function. Outside the XSLT environment, you can trim unwanted digits using the function round-half-to-even() , which is described in Chapter 13. | |
| untypedAtomic | Returns the same result as converting to a string, but the result is labeled as untypedAtomic . |
Converting from duration
| Destination Type | Rules |
| duration | The value is returned unchanged. |
| string | The duration is output in a normalized form in which the number of months will be less than 12, the number of hours less than 24, the number of minutes and seconds less than 60. Zero-valued components are omitted. A zero-length duration is output asPT0S, unless it is an instance of xs:yearMonthDuration , in which case it is output as P0 M. |
| untypedAtomic | Returns the same result as converting to a string, but the result is labeled as untypedAtomic . |
Converting from float
| Destination Type | Rules |
| boolean | The values positive zero, negative zero, and NaN are converted to false , and any other value is converted to true . |
| decimal | The result is the decimal value, within the range of decimal values that the implementation can handle, whose value is numerically closest to the value of the supplied float; if two values are equally close, the value is rounded toward zero. Overflow is handled in the same way as for double-to-decimal conversion: See page 660. |
| double | The value space for float is a strict subset of that for double , so it is possible to convert every float value to a double without loss. The specification achieves this by stating that the conversion returns the double that has the same exponent and mantissa as the supplied float , with zero, NaN and infinity being treated specially. |
| float | The value is returned unchanged. |
| string | The rules are the same as those for double-to-string conversion: see page 660. |
| untypedAtomic | Returns the same result as converting to a string, but the result is labeled as untypedAtomic . |
Converting from gDay
| Destination Type | Rules |
| gDay | The value is returned unchanged. |
| string | The output will be in the form ---DD , followed by a timezone if the value includes one, formatted as for xs:date . |
| untypedAtomic | Returns the same result as converting to a string, but the result is labeled as untypedAtomic . |
Converting from gMonth
| Destination Type | Rules |
| gMonth | The value is returned unchanged. |
| string | The output will be in the form --MM , followed by a timezone if the value includes one, formatted as for xs:date . (There was an error in the XML Schema Recommendation, corrected in later editions, which gave the format as --MM-- ). |
| untypedAtomic | Returns the same result as converting to a string, but the result is labeled as untypedAtomic . |
Converting from gMonthDay
| Destination Type | Rules |
| gMonthDay | The value is returned unchanged. |
| String | The output will be in the form --MM-DD , followed by a timezone if the value includes one, formatted as for xs:date . |
| untypedAtomic | Returns the same result as converting to a string, but the result is labeled as untypedAtomic . |
Converting from gYear
| Destination Type | Rules |
| gYear | The value is returned unchanged. |
| string | The output will be in the form YYYY , followed by a timezone if the value includes one, formatted as for xs:date . Negative years are preceded by -. |
| untypedAtomic | Returns the same result as converting to a string, but the result is labeled as untypedAtomic . |
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