edu.stanford.nlp.ling.tokensregex.types
Class Expressions

java.lang.Object
  edu.stanford.nlp.ling.tokensregex.types.Expressions

public class Expressions
extends java.lang.Object

Various implementations of the Expression interface

Author:

Angel Chang

Nested Class Summary

static class	Expressions.AndExpression
static class	Expressions.AssignableFunctionCallExpression A function call that can be assigned a value.
static class	Expressions.CaseExpression
static class	Expressions.CompositeValue A composite value with field names and values for each field
static class	Expressions.ConditionalExpression
static class	Expressions.FieldExpression
static class	Expressions.FunctionCallExpression
static class	Expressions.IfExpression
static class	Expressions.IndexedExpression
static class	Expressions.ListExpression
static class	Expressions.MethodCallExpression
static class	Expressions.NotExpression
static class	Expressions.OrExpression
static class	Expressions.PrimitiveValue<T> Primitive value that is directly represented by a Java object of type T
static class	Expressions.RegexMatchResultVarExpression
static class	Expressions.RegexMatchVarExpression
static class	Expressions.RegexValue A string that represents a regular expression
static class	Expressions.SimpleCachedExpression<T> A simple implementation of an expression that is represented by a java object of type T and which also has a cached Value stored with it
static class	Expressions.SimpleExpression<T> A simple implementation of an expression that is represented by a java object of type T
static class	Expressions.SimpleValue<T> Simple implementation of Value backed by a java object of type T
static class	Expressions.TypedExpression An expression with a typename and tags
static class	Expressions.VarAssignmentExpression A variable assignment with the name of the variable, and the expression to assign to that variable
static class	Expressions.VarExpression A variable, which can be assigned any expression.
static class	Expressions.WrappedExpression An expression that is a wrapper around another expression

Field Summary

static Value<java.lang.Boolean>	FALSE
protected static java.lang.String	NEWLINE
static Value	NIL
static Value<java.lang.Boolean>	TRUE
static java.lang.String	TYPE_ANNOTATION_KEY
static java.lang.String	TYPE_BOOLEAN
static java.lang.String	TYPE_CLASS CLASS - Maps to a Java class
static java.lang.String	TYPE_COMPOSITE COMPOSITE - Composite value with field names and field values
static java.lang.String	TYPE_FUNCTION FUNCTION - (input) => (output) where input is a list of Values, and output is a single Value
static java.lang.String	TYPE_LIST LIST - List
static java.lang.String	TYPE_NUMBER NUMBER - Numeric value (can be integer or real)
static java.lang.String	TYPE_REGEX REGEX - Regular expression pattern (for tokens or string)
static java.lang.String	TYPE_REGEXMATCHVAR REGEXMATCHVAR - Variable that refers to variable resulting from a regex match or used in a regex match (starts with $)
static java.lang.String	TYPE_SET
static java.lang.String	TYPE_STRING STRING - String
static java.lang.String	TYPE_STRING_REGEX
static java.lang.String	TYPE_TOKEN_REGEX
static java.lang.String	TYPE_TOKENS
static java.lang.String	TYPE_VAR VAR - Variable

Constructor Summary

Expressions()

Method Summary

static Expression	asExpression(Env env, java.lang.Object v)
static <C> C	asObject(Env env, java.lang.Object v)
static Value	asValue(Env env, java.lang.Object v)
static java.lang.Boolean	convertValueToBoolean(Value v, boolean keepNull)
static Value<java.lang.Boolean>	convertValueToBooleanValue(Value v, boolean keepNull)
static <T> Value	createValue(java.lang.String typename, T value, java.lang.String... tags)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TYPE_VAR

public static final java.lang.String TYPE_VAR

VAR - Variable

See Also:

Constant Field Values

TYPE_FUNCTION

public static final java.lang.String TYPE_FUNCTION

FUNCTION - (input) => (output) where input is a list of Values, and output is a single Value

See Also:

Constant Field Values

TYPE_REGEX

public static final java.lang.String TYPE_REGEX

REGEX - Regular expression pattern (for tokens or string)

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Constant Field Values

TYPE_STRING_REGEX

public static final java.lang.String TYPE_STRING_REGEX

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Constant Field Values

TYPE_TOKEN_REGEX

public static final java.lang.String TYPE_TOKEN_REGEX

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Constant Field Values

TYPE_REGEXMATCHVAR

public static final java.lang.String TYPE_REGEXMATCHVAR

REGEXMATCHVAR - Variable that refers to variable resulting from a regex match or used in a regex match (starts with $)

See Also:

Constant Field Values

TYPE_STRING

public static final java.lang.String TYPE_STRING

STRING - String

See Also:

Constant Field Values

TYPE_NUMBER

public static final java.lang.String TYPE_NUMBER

NUMBER - Numeric value (can be integer or real)

See Also:

Constant Field Values

TYPE_COMPOSITE

public static final java.lang.String TYPE_COMPOSITE

COMPOSITE - Composite value with field names and field values

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Constant Field Values

TYPE_LIST

public static final java.lang.String TYPE_LIST

LIST - List

See Also:

Constant Field Values

TYPE_SET

public static final java.lang.String TYPE_SET

See Also:

Constant Field Values

TYPE_ANNOTATION_KEY

public static final java.lang.String TYPE_ANNOTATION_KEY

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Constant Field Values

TYPE_CLASS

public static final java.lang.String TYPE_CLASS

CLASS - Maps to a Java class

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Constant Field Values

TYPE_TOKENS

public static final java.lang.String TYPE_TOKENS

See Also:

Constant Field Values

TYPE_BOOLEAN

public static final java.lang.String TYPE_BOOLEAN

See Also:

Constant Field Values

TRUE

public static final Value<java.lang.Boolean> TRUE

FALSE

public static final Value<java.lang.Boolean> FALSE

NIL

public static final Value NIL

NEWLINE

protected static final java.lang.String NEWLINE

Constructor Detail

Expressions

public Expressions()

Method Detail

convertValueToBoolean

public static java.lang.Boolean convertValueToBoolean(Value v,
                                                      boolean keepNull)

convertValueToBooleanValue

public static Value<java.lang.Boolean> convertValueToBooleanValue(Value v,
                                                                  boolean keepNull)

asObject

public static <C> C asObject(Env env,
                             java.lang.Object v)

asExpression

public static Expression asExpression(Env env,
                                      java.lang.Object v)

asValue

public static Value asValue(Env env,
                            java.lang.Object v)

createValue

public static <T> Value createValue(java.lang.String typename,
                                    T value,
                                    java.lang.String... tags)