parser/function_parser/function_parser library

Classes

AbsParser

AllFalseParser

Takes a collection of Boolean values and returns true if all the items are false. If any items are true, the result is false. If the input is empty ({ }), the result is true.

AllParser

AllTrueParser

Takes a collection of Boolean values and returns true if all the items are true. If any items are false, the result is false. If the input is empty ({ }), the result is true.

AnswersParser

AnyFalseParser

Takes a collection of Boolean values and returns true if any of the items are false. If all the items are true, or if the input is empty ({ }), the result is false.

AnyTrueParser

Takes a collection of Boolean values and returns true if any of the items are true. If all the items are false, or if the input is empty ({ }), the result is false.

AsFunctionParser

DEPRECATED The as() function is defined for backwards compatibility with previous implementations of FHIRPath. However, we have chosen not to support it. DEPRECATED

AvgParser

CeilingParser

ChildrenParser

CombineParser

Merge the input and other collections into a single collection without eliminating duplicate values. Combining an empty collection with a non-empty collection will return the non-empty collection. There is no expectation of order in the resulting collection.

ContainsFunctionParser

ConvertsToBooleanParser

http://hl7.org/fhirpath/#convertstoboolean-boolean If the input collection contains a single item, this function will return true if: the item is a Boolean the item is an Integer that is equal to one of the possible integer representations of Boolean values the item is a Decimal that is equal to one of the possible decimal representations of Boolean values the item is a String that is equal to one of the possible string representations of Boolean values

ConvertsToDateParser

Checks if input can be converted to a Date

ConvertsToDateTimeParser

Checks if input can be converted to a FhirDateTime

ConvertsToDecimalParser

Checks if input can be converted into a Decimal

ConvertsToIntegerParser

Checks if input can be converted to an Integer

ConvertsToQuantityParser

Checks if input can be converted to a ValidatedQuantity

ConvertsToStringParser

Checks if input can be converted to a String

ConvertsToTimeParser

Checks if input can be converted to a Time

CountParser

DescendantsParser

DistinctParser

EmptyParser

Returns true if the input collection is empty ({ }) and false otherwise.

EndsWithParser

ExcludeParser

ExistsParser

Returns true if the collection has any elements, and false otherwise. This is the opposite of empty(), and as such is a shorthand for empty().not(). If the input collection is empty ({ }), the result is false. The function can also take an optional criteria to be applied to the collection prior to the determination of the exists. In this case, the function is shorthand for where(criteria).exists(). Note that a common term for this function is any.

ExpParser

ExtensionParser

FirstParser

FloorParser

FpMatchesParser

FpNotParser

FpSkipParser

FpWhereParser

HasValueParser

IifParser

http://hl7.org/fhirpath/#iifcriterion-expression-true-result-collection-otherwise-result-collection-collection The iif function in FHIRPath is an immediate if, also known as a conditional operator (such as C’s ? : operator). The criterion expression is expected to evaluate to a Boolean. See: http://hl7.org/fhirpath/#singleton-evaluation-of-collections for rules of Boolean evaluation. Any collection with a single non-boolean item is true.

IndexOfParser

IntersectParser

IsDistinctParser

IsFunctionParser

DEPRECATED The as() function is defined for backwards compatibility with previous implementations of FHIRPath. However, we have chosen not to support it. DEPRECATED

LastParser

LengthParser

LnParser

LogParser

LowerParser

MaxParser

MinParser

NowParser

OfTypeParser

OrdinalParser

PowerParser

RepeatParser

ReplaceMatchesParser

ReplaceParser

RoundParser

SelectParser

SingleParser

SqrtParser

StartsWithParser

SubsetOfParser

SubstringParser

SumParser

SupersetOfParser

TailParser

TakeParser

TimeOfDayParser

ToBooleanParser

http://hl7.org/fhirpath/#toboolean-boolean If the input collection contains a single item, this function will return a single boolean if: the item is a Boolean the item is an Integer and is equal to one of the possible integer representations of Boolean values the item is a Decimal that is equal to one of the possible decimal representations of Boolean values the item is a String that is equal to one of the possible string representations of Boolean values If the item is not one the above types, or the item is a String, Integer, or Decimal, but is not equal to one of the possible values convertible to a Boolean, the result is empty.

ToCharsParser

ToDateParser

Converts input to an Date if possible

ToDateTimeParser

Converts input to FhirDateTime if possible

TodayParser

ToDecimalParser

Converts input to a Decimal if possible

ToIntegerParser

Converts input to an Integer if possible

ToQuantityParser

Converts input to a ValidatedQuantity if possible

ToStringParser

Converts input to a String if possible

ToTimeParser

Converts input to a Time if possible

TraceParser

TruncateParser

UnionFunctionParser

Merge the two collections into a single collection, eliminating any duplicate values (using = (Equals) (=) to determine equality). There is no expectation of order in the resulting collection.

UpperParser