Object/Trait

net.liftweb.util

BasicTypesHelpers

Related Docs: trait BasicTypesHelpers | package util

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object BasicTypesHelpers extends BasicTypesHelpers with StringHelpers with ControlHelpers

This object adds functionality to Scala standard types.

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Inherited
  1. BasicTypesHelpers
  2. ControlHelpers
  3. Tryo
  4. ClassHelpers
  5. StringHelpers
  6. BasicTypesHelpers
  7. AnyRef
  8. Any
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Type Members

  1. implicit class Boolean2 extends AnyRef

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    This decorator class adds a ternary operator to a Boolean value

    This decorator class adds a ternary operator to a Boolean value

    Definition Classes
    BasicTypesHelpers
  2. implicit class OptionExtension[T] extends AnyRef

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    Definition Classes
    BasicTypesHelpers
  3. implicit final class OptionalCons extends AnyRef

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    Optional cons that implements the expression: expr ?> value ::: List

    Optional cons that implements the expression: expr ?> value ::: List

    Definition Classes
    BasicTypesHelpers
  4. implicit final class PartialFunctionWrapper[A] extends AnyRef

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    A helper class that facilitates wrapping of one PartialFunction around another

    A helper class that facilitates wrapping of one PartialFunction around another

    Definition Classes
    BasicTypesHelpers
  5. implicit class TryExtension[T] extends AnyRef

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    Definition Classes
    BasicTypesHelpers

Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  4. object AsBoolean

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    A helpful Boolean extractor

    A helpful Boolean extractor

    Definition Classes
    BasicTypesHelpers
  5. object AsDouble

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    A helpful Double extractor

    A helpful Double extractor

    Definition Classes
    BasicTypesHelpers
  6. object AsInt

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    A helpful Int extractor

    A helpful Int extractor

    Definition Classes
    BasicTypesHelpers
  7. object AsLong

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    A helpful Long extractor

    A helpful Long extractor

    Definition Classes
    BasicTypesHelpers
  8. def ^[T](i: T*): List[T]

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    This operator transforms its arguments into a List

    This operator transforms its arguments into a List

    returns

    the list of arguments passed as varargs

    Definition Classes
    ClassHelpers
  9. def asBoolean(in: String): Box[Boolean]

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    A helper that will convert the String to a Boolean if it's t, true, yes, 1, f, false, no, or 0

    A helper that will convert the String to a Boolean if it's t, true, yes, 1, f, false, no, or 0

    Definition Classes
    BasicTypesHelpers
  10. def asDouble(in: String): Box[Double]

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    Safely convert the specified String to a Double.

    Safely convert the specified String to a Double.

    Definition Classes
    BasicTypesHelpers
  11. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  12. def asInt(in: String): Box[Int]

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    Safely convert the specified String to an Int.

    Safely convert the specified String to an Int.

    Definition Classes
    BasicTypesHelpers
  13. def asLong(in: Any): Box[Long]

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    Convert any object to an "equivalent" Long depending on its value

    Convert any object to an "equivalent" Long depending on its value

    Definition Classes
    BasicTypesHelpers
  14. def asLong(in: String): Box[Long]

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    Safely convert the specified String to a Long.

    Safely convert the specified String to a Long.

    Definition Classes
    BasicTypesHelpers
  15. def blankForNull(s: String): String

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    Test for null and return either the given String if not null or the blank String.

    Test for null and return either the given String if not null or the blank String.

    Definition Classes
    StringHelpers
  16. def callableMethod_?(meth: Method): Boolean

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    returns

    true if the method is public and has no parameters

    Definition Classes
    ClassHelpers
  17. def camelify(name: String): String

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    Turns a string of format "foo_bar" into camel case "FooBar"

    Turns a string of format "foo_bar" into camel case "FooBar"

    Functional code courtesy of Jamie Webb (j@jmawebb.cjb.net) 2006/11/28

    name

    the String to CamelCase

    returns

    the CamelCased string

    Definition Classes
    StringHelpers
  18. def camelifyMethod(name: String): String

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    Turn a string of format "foo_bar" into camel case with the first letter in lower case: "fooBar" This function is especially used to camelCase method names.

    Turn a string of format "foo_bar" into camel case with the first letter in lower case: "fooBar" This function is especially used to camelCase method names.

    name

    the String to CamelCase

    returns

    the CamelCased string

    Definition Classes
    StringHelpers
  19. def capify(in: String): String

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    Capitalize every "word" in the string.

    Capitalize every "word" in the string. A word is either separated by spaces or underscores.

    in

    string to capify

    returns

    the capified string

    Definition Classes
    StringHelpers
  20. def charSplit(what: String, sep: Char): List[String]

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    Faster than roboSplit...

    Faster than roboSplit... this method splits Strings at a given character

    Definition Classes
    StringHelpers
  21. def classHasControllerMethod(clz: Class[_], name: String): Boolean

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    Check that the method 'name' is callable for class 'clz'

    Check that the method 'name' is callable for class 'clz'

    clz

    the class supposed to own the method

    name

    name of the method to test

    returns

    true if the method exists on the class and is callable

    Definition Classes
    ClassHelpers
  22. def classHierarchy(in: Class[_]): List[Class[_]]

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    Definition Classes
    ClassHelpers
  23. def clean(in: String): String

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    Remove all the characters from a string exception a-z, A-Z, 0-9, and '_'

    Remove all the characters from a string exception a-z, A-Z, 0-9, and '_'

    returns

    the cleaned string and an empty string if the input is null

    Definition Classes
    StringHelpers
  24. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  25. def commafy(what: String): String

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    Add commas before the last 3 characters

    Add commas before the last 3 characters

    returns

    the string with commas

    Definition Classes
    StringHelpers
  26. def compareElem(left: Elem, right: Elem): Boolean

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    Compare two Elems

    Compare two Elems

    Definition Classes
    BasicTypesHelpers
  27. def compareMetaData(left: List[MetaData], right: List[MetaData]): Boolean

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    Compare the metadata of two attributes

    Compare the metadata of two attributes

    Definition Classes
    BasicTypesHelpers
  28. def compareNode(left: Node, right: Node): Boolean

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    Comparse two XML nodes

    Comparse two XML nodes

    Definition Classes
    BasicTypesHelpers
  29. def compareXml(left: NodeSeq, right: NodeSeq): Boolean

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    Compare two NodeSeq and return true if they are equal, even if attribute order of Elems is different

    Compare two NodeSeq and return true if they are equal, even if attribute order of Elems is different

    Definition Classes
    BasicTypesHelpers
  30. def containsClass[C](clz: Class[C], toMatch: List[Class[_]]): Boolean

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    Is the clz an instance of (assignable from) any of the classes in the list

    Is the clz an instance of (assignable from) any of the classes in the list

    clz

    the class to test

    toMatch

    the list of classes to match against

    returns

    true if clz is assignable from any of the matching classes

    Definition Classes
    ClassHelpers
  31. def createInvoker[C <: AnyRef](name: String, on: C): Box[() ⇒ Box[Any]]

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    Create a function (the 'invoker') which will trigger any public, parameterless method That function will throw the cause exception if the method can't be invoked

    Create a function (the 'invoker') which will trigger any public, parameterless method That function will throw the cause exception if the method can't be invoked

    on

    instance whose method must be invoked

    returns

    Empty if instance is null or Full(invoker)

    Definition Classes
    ClassHelpers
  32. def emptyForBlank(s: String): Box[String]

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    Turn a String into a Box[String], with Empty for the blank string.

    Turn a String into a Box[String], with Empty for the blank string.

    A string containing only spaces is considered blank.

    returns

    Full(s.trim) if s is not null or blank, Empty otherwise

    Definition Classes
    StringHelpers
  33. def encJs(what: String): String

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    Encode the string to be including in JavaScript, replacing '\' or '\\' or non-ASCII characters by their unicode value

    Encode the string to be including in JavaScript, replacing '\' or '\\' or non-ASCII characters by their unicode value

    returns

    the encoded string inserted into quotes

    Definition Classes
    StringHelpers
  34. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  35. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  36. def escChar(in: Char): String

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    Create the unicode value of a character

    Create the unicode value of a character

    in

    character

    returns

    the unicode value as a string starting by \\u

    Definition Classes
    StringHelpers
  37. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  38. def findClass(where: List[(String, List[String])]): Box[Class[AnyRef]]

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    Find a class given a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    Find a class given a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  39. def findClass(name: String, where: List[String]): Box[Class[AnyRef]]

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    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  40. def findClass[C <: AnyRef](name: String, where: List[String], targetType: Class[C]): Box[Class[C]]

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    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  41. def findClass(name: String, where: List[String], modifiers: List[(String) ⇒ String]): Box[Class[AnyRef]]

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    General method to in find a class according to its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    General method to in find a class according to its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  42. def findClass[C <: AnyRef](name: String, where: List[String], modifiers: List[(String) ⇒ String], targetType: Class[C]): Box[Class[C]]

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    General method to in find a class according to its name, a list of possible packages, a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    General method to in find a class according to its name, a list of possible packages, a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  43. def findType[C <: AnyRef](where: List[(String, List[String])])(implicit m: Manifest[C]): Box[Class[C]]

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    Find a class given its type, a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    Find a class given its type, a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  44. def findType[C <: AnyRef](name: String, where: List[String])(implicit m: Manifest[C]): Box[Class[C]]

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    Find a class given its type, its name and a list of packages, turning underscored names to CamelCase if necessary.

    Find a class given its type, its name and a list of packages, turning underscored names to CamelCase if necessary.

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  45. def findType[C <: AnyRef](name: String, where: List[String], modifiers: List[(String) ⇒ String])(implicit m: Manifest[C]): Box[Class[C]]

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    General method to in find a class according to its type, its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    General method to in find a class according to its type, its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  46. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  47. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
  48. def instantiate[C](clz: Class[C]): Box[C]

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    Create a new instance of a class

    Create a new instance of a class

    returns

    a Full can with the instance or a Failure if the instance can't be created

    Definition Classes
    ClassHelpers
  49. def invokeControllerMethod(clz: Class[_], meth: String): Any

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    Invoke a controller method (parameterless, public) on a class

    Invoke a controller method (parameterless, public) on a class

    clz

    the class owning the method

    returns

    the result of the method invocation or throws the root exception causing an error

    Definition Classes
    ClassHelpers
  50. def invokeMethod[C](clz: Class[C], inst: AnyRef, meth: String, params: Array[AnyRef], ptypes: Array[Class[_]]): Box[Any]

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    Invoke the given method for the given class, with some parameters and their types Tries the method name, then the method as a CamelCased name and the method as a camelCased name The class is not instanciated if the method is static, otherwise the passed instance is used

    Invoke the given method for the given class, with some parameters and their types Tries the method name, then the method as a CamelCased name and the method as a camelCased name The class is not instanciated if the method is static, otherwise the passed instance is used

    clz

    class whose method should be invoked

    inst

    instance of the class who method should be invoked, if the method is not static

    meth

    method to invoke

    params

    parameters to pass to the method

    ptypes

    list of types of the parameters

    returns

    a Box containing the value returned by the method

    Definition Classes
    ClassHelpers
  51. def invokeMethod[C](clz: Class[C], inst: AnyRef, meth: String, params: Array[AnyRef]): Box[Any]

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    Invoke the given method for the given class, with some parameters.

    Invoke the given method for the given class, with some parameters. Tries the method name, then the method as a CamelCased name and the method as a camelCased name The class is not instanciated if the method is static, otherwise the passed instance is used

    clz

    class whose method should be invoked

    inst

    instance of the class who method should be invoked, if the method is not static

    meth

    method to invoke

    params

    parameters to pass to the method

    returns

    a Box containing the value returned by the method

    Definition Classes
    ClassHelpers
  52. def invokeMethod[C](clz: Class[C], inst: AnyRef, meth: String): Box[Any]

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    Invoke the given method for the given class, with no params.

    Invoke the given method for the given class, with no params. The class is not instanciated if the method is static, otherwise the passed instance is used

    clz

    class whose method should be invoked

    inst

    instance of the class who method should be invoked, if the method is not static

    meth

    method to invoke

    returns

    a Box containing the value returned by the method

    Definition Classes
    ClassHelpers
  53. def isEq(a: Array[Byte], b: Array[Byte]): Boolean

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    Compare two arrays of Byte for byte equality.

    Compare two arrays of Byte for byte equality.

    returns

    true if two Byte arrays contain the same bytes

    Definition Classes
    BasicTypesHelpers
  54. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  55. def listFromListAndString(lst: List[String], s: String): List[String]

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    Creates a List of Strings from a List[String] and a String

    Creates a List of Strings from a List[String] and a String

    Definition Classes
    StringHelpers
  56. def listFromStrings(s1: String, s2: String): List[String]

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    Creates a List of Strings from two Strings

    Creates a List of Strings from two Strings

    Definition Classes
    StringHelpers
  57. implicit def listStringToSuper(in: List[String]): SuperListString

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    returns

    a SuperString with more available methods such as roboSplit or commafy

    Definition Classes
    StringHelpers
  58. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  59. implicit def nodeSeqToOptionString(in: NodeSeq): Box[String]

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    returns

    an Empty can if the node seq is empty and a full can with the NodeSeq text otherwise

    Definition Classes
    StringHelpers
  60. def notEq(a: Array[Byte], b: Array[Byte]): Boolean

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    Compare two arrays of Byte for byte equality.

    Compare two arrays of Byte for byte equality.

    returns

    true if two Byte arrays don't contain the same bytes

    Definition Classes
    BasicTypesHelpers
  61. final def notify(): Unit

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    Definition Classes
    AnyRef
  62. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  63. def parseNumber(tin: String): Long

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    Parse a string and return the Long value of that string.

    Parse a string and return the Long value of that string.

    The string can start with '-' if it is a negative number or '+' for a positive number

    returns

    the Long value of the input String

    Definition Classes
    StringHelpers
  64. def processString(msg: String, subst: Map[String, String]): String

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    Replaces the value found in a string surrounded by <%= ...

    Replaces the value found in a string surrounded by <%= ... %> by a replacement according to the value found in the subst Map.

    Throws an exception if no correspondance can be found.

    msg

    string where replacements should be done

    subst

    map of [regular expression with groups, replacement]

    Definition Classes
    StringHelpers
  65. def randomString(size: Int): String

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    Create a random string of a given size.

    Create a random string of a given size. 5 bits of randomness per character

    size

    size of the string to create. Must be a positive integer.

    returns

    the generated string

    Definition Classes
    StringHelpers
  66. def roboSplit(what: String, sep: String): List[String]

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    Split a string according to a separator

    Split a string according to a separator

    sep

    a regexp to use with the String::split method

    returns

    a list of trimmed parts whose length is > 0

    Definition Classes
    StringHelpers
  67. def snakify(name: String): String

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    Turn a string of format "FooBar" into snake case "foo_bar"

    Turn a string of format "FooBar" into snake case "foo_bar"

    Note: snakify is not reversible, ie. in general the following will _not_ be true:

    s == camelify(snakify(s))

    returns

    the underscored string

    Definition Classes
    StringHelpers
  68. def splitAt(what: String, sep: String): List[(String, String)]

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    Split a string in 2 parts at the first place where a separator is found

    Split a string in 2 parts at the first place where a separator is found

    returns

    a List containing a pair of the 2 trimmed parts

    Definition Classes
    StringHelpers
  69. def splitColonPair(in: String, first: String, second: String): (String, String)

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    Split a string separated by a point or by a column in 2 parts.

    Split a string separated by a point or by a column in 2 parts. Uses default values if only one is found or if no parts are found

    in

    string to split

    first

    default value for the first part if no split can be done

    second

    default value for the second part if one or less parts can be found

    returns

    a pair containing the first and second parts

    Definition Classes
    StringHelpers
  70. def splitNameValuePairs(props: String): Map[String, String]

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    Splits a string of the form <name1=value1, name2=value2, ...

    Splits a string of the form <name1=value1, name2=value2, ... > and unquotes the quoted values. The result is a Map[String, String]

    Definition Classes
    StringHelpers
  71. implicit def stringToSuper(in: String): SuperString

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    returns

    a SuperString with more available methods such as roboSplit or commafy

    Definition Classes
    StringHelpers
  72. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  73. def toBoolean(in: Any): Boolean

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    Convert any object to an "equivalent" Boolean depending on its value

    Convert any object to an "equivalent" Boolean depending on its value

    Definition Classes
    BasicTypesHelpers
  74. def toByteArrayInputStream(in: InputStream): ByteArrayInputStream

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    Convert any InputStream to a ByteArrayInputStream

    Convert any InputStream to a ByteArrayInputStream

    Definition Classes
    BasicTypesHelpers
  75. def toInt(in: Any): Int

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    Convert any object to an "equivalent" Int depending on its value

    Convert any object to an "equivalent" Int depending on its value

    Definition Classes
    BasicTypesHelpers
  76. def toLong(in: Any): Long

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    Convert any object to an "equivalent" Long depending on its value

    Convert any object to an "equivalent" Long depending on its value

    Definition Classes
    BasicTypesHelpers
  77. def toString(): String

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    Definition Classes
    AnyRef → Any
  78. def tryo[T](ignore: Class[_])(f: ⇒ T): Box[T]

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    Wraps a "try" block around the function f.

    Wraps a "try" block around the function f. Takes only one Class of exception to ignore

    ignore

    - a single exception classes to ignore. A thrown exception will be ignored if it is assignable from this class.

    f

    - the block of code to evaluate

    returns

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    • Empty if the exception class is in the ignore list
    Definition Classes
    Tryo
  79. def tryo[T](ignore: List[Class[_]])(f: ⇒ T): Box[T]

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    Wraps a "try" block around the function f

    Wraps a "try" block around the function f

    ignore

    - a list of exception classes to ignore. A thrown exception will be ignored if it is assignable from one of the exception classes in the list

    f

    - the block of code to evaluate

    returns

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    • Empty if the exception class is in the ignore list
    Definition Classes
    Tryo
  80. def tryo[T](onError: (Throwable) ⇒ Unit)(f: ⇒ T): Box[T]

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    Wraps a "try" block around the function f and trigger a callback function if an exception is thrown

    Wraps a "try" block around the function f and trigger a callback function if an exception is thrown

    onError

    - an optional callback function that will use the thrown exception as a parameter

    f

    - the block of code to evaluate

    returns

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    Definition Classes
    Tryo
  81. def tryo[T](f: ⇒ T): Box[T]

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    Wraps a "try" block around the function f

    Wraps a "try" block around the function f

    f

    - the block of code to evaluate

    returns

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    Definition Classes
    Tryo
  82. def tryo[T](handler: PartialFunction[Throwable, T], f: ⇒ T): Box[T]

    Permalink

    Wraps a "try" block around the function f.

    Wraps a "try" block around the function f. If f throws an exception that is in the domain of the handler PF, the handler will be invoked on the exception. Otherwise the exception is wrapped into a Failure.

    handler

    - A partial function that handles exceptions

    f

    - the block of code to evaluate

    returns

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    Definition Classes
    Tryo
    See also

    net.liftweb.common.Failure

  83. def tryo[T](ignore: List[Class[_]], onError: Box[(Throwable) ⇒ Unit])(f: ⇒ T): Box[T]

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    Wraps a "try" block around the function f.

    Wraps a "try" block around the function f. If f throws an exception with its class in the 'ignore' list or if 'ignore' is null or an empty list, ignore the exception and return None.

    ignore

    - a list of exception classes to ignore. A thrown exception will be ignored if it is assignable from one of the exception classes in the list

    onError

    - an optional callback function that will use the thrown exception as a parameter

    f

    - the block of code to evaluate

    returns

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    • Empty if the exception class is in the ignore list
    Definition Classes
    Tryo
  84. def unquote(str: String): String

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    If str is surrounded by quotes it return the content between the quotes

    If str is surrounded by quotes it return the content between the quotes

    Definition Classes
    StringHelpers
  85. final def wait(): Unit

    Permalink
    Definition Classes
    AnyRef
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  86. final def wait(arg0: Long, arg1: Int): Unit

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  87. final def wait(arg0: Long): Unit

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Inherited from ControlHelpers

Inherited from Tryo

Inherited from ClassHelpers

Inherited from StringHelpers

Inherited from BasicTypesHelpers

Inherited from AnyRef

Inherited from Any

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