NAME

Data::Object::String

ABSTRACT

Data-Object String Class

SYNOPSIS

  use Data::Object::String;

  my $string = Data::Object::String->new('abcedfghi');

DESCRIPTION

Data::Object::String provides routines for operating on Perl 5 string data. String methods work on data that meets the criteria for being a string. A string holds and manipulates an arbitrary sequence of bytes, typically representing characters. Users of strings should be aware of the methods that modify the string itself as opposed to returning a new string. Unless stated, it may be safe to assume that the following methods copy, modify and return new strings based on their function.

METHODS

This package implements the following methods.

append

  append() : StrObject

The append method modifies and returns the string with the argument list appended to it separated using spaces. This method returns a string object.

append example
  # given 'firstname'

  $string->append('lastname'); # firstname lastname

camelcase

  camelcase() : StrObject

The camelcase method modifies the string such that it will no longer have any non-alphanumeric characters and each word (group of alphanumeric characters separated by 1 or more non-alphanumeric characters) is capitalized. Note, this method modifies the string. This method returns a Data::Object::String object.

camelcase example
  # given 'hello world'

  $string->camelcase; # HelloWorld

chomp

  chomp() : StrObject

The chomp method is a safer version of the chop method, it's used to remove the newline (or the current value of $/) from the end of the string. Note, this method modifies and returns the string. This method returns a string object.

chomp example
  # given "name, age, dob, email\n"

  $string->chomp; # name, age, dob, email

chop

  chop() : StrObject

The chop method removes the last character of a string and returns the character chopped. It is much more efficient than "s/.$//s" because it neither scans nor copies the string. Note, this method modifies and returns the string. This method returns a string value.

chop example
  # given "this is just a test."

  $string->chop; # this is just a test

concat

  concat(Any $arg1) : StrObject

The concat method modifies and returns the string with the argument list appended to it. This method returns a string value.

concat example
  # given 'ABC'

  $string->concat('DEF', 'GHI'); # ABCDEFGHI

contains

  contains(Str | RegexpRef $arg1) : NumObject

The contains method searches the string for the string specified in the argument and returns true if found, otherwise returns false. If the argument is a string, the search will be performed using the core index function. If the argument is a regular expression reference, the search will be performed using the regular expression engine. This method returns a Data::Object::Number object.

contains example
  # given 'Nullam ultrices placerat nibh vel malesuada.'

  $string->contains('trices'); # 1; true
  $string->contains('itrices'); # 0; false

  $string->contains(qr/trices/); # 1; true
  $string->contains(qr/itrices/); # 0; false

defined

  defined() : NumObject

The defined method returns true if the object represents a value that meets the criteria for being defined, otherwise it returns false. This method returns a number object.

defined example
  # given $string

  $string->defined; # 1

eq

  eq(Any $arg1) : NumObject

The eq method returns true if the argument provided is equal to the value represented by the object. This method returns a number value.

eq example
  # given 'exciting'

  $string->eq('Exciting'); # 0

ge

  ge(Any $arg1) : NumObject

The ge method returns true if the argument provided is greater-than or equal-to the value represented by the object. This method returns a Data::Object::Number object.

ge example
  # given 'exciting'

  $string->ge('Exciting'); # 1

gt

  gt(Any $arg1) : NumObject

The gt method returns true if the argument provided is greater-than the value represented by the object. This method returns a number value.

gt example
  # given 'exciting'

  $string->gt('Exciting'); # 1

hex

  hex() : Str

The hex method returns the value resulting from interpreting the string as a hex string. This method returns a data type object to be determined after execution.

hex example
  # given '0xaf'

  string->hex; # 175

index

  index(Str $arg1, Num $arg2) : NumObject

The index method searches for the argument within the string and returns the position of the first occurrence of the argument. This method optionally takes a second argument which would be the position within the string to start searching from (also known as the base). By default, starts searching from the beginning of the string. This method returns a data type object to be determined after execution.

index example
  # given 'unexplainable'

  $string->index('explain'); # 2
  $string->index('explain', 0); # 2
  $string->index('explain', 1); # 2
  $string->index('explain', 2); # 2
  $string->index('explain', 3); # -1
  $string->index('explained'); # -1

lc

  lc() : StrObject

The lc method returns a lowercased version of the string. This method returns a string object. This method is an alias to the lowercase method.

lc example
  # given 'EXCITING'

  $string->lc; # exciting

lcfirst

  lc() : StrObject

The lcfirst method returns a the string with the first character lowercased. This method returns a string value.

lcfirst example
  # given 'EXCITING'

  $string->lcfirst; # eXCITING

le

  le(Any $arg1) : NumObject

The le method returns true if the argument provided is less-than or equal-to the value represented by the object. This method returns a Data::Object::Number object.

le example
  # given 'exciting'

  $string->le('Exciting'); # 0

length

  length() : NumObject

The length method returns the number of characters within the string. This method returns a number value.

length example
  # given 'longggggg'

  $string->length; # 9

lines

  lines() : ArrayObject

The lines method breaks the string into pieces, split on 1 or more newline characters, and returns an array reference consisting of the pieces. This method returns an array value.

lines example
  # given "who am i?\nwhere am i?\nhow did I get here"

  $string->lines; # ['who am i?','where am i?','how did i get here']

lowercase

  lowercase() : StrObject

The lowercase method is an alias to the lc method. This method returns a string object.

lowercase example
  # given 'EXCITING'

  $string->lowercase; # exciting

lt

  lt(Any $arg1) : NumObject

The lt method returns true if the argument provided is less-than the value represented by the object. This method returns a number value.

lt example
  # given 'exciting'

  $string->lt('Exciting'); # 0

ne

  ne(Any $arg1) : NumObject

The ne method returns true if the argument provided is not equal to the value represented by the object. This method returns a number value.

ne example
  # given 'exciting'

  $string->ne('Exciting'); # 1

new

  new(Str $arg1) : StrObject

The new method expects a string and returns a new class instance.

new example
  # given abcedfghi

  my $string = Data::Object::String->new('abcedfghi');

replace

  replace(Str $arg1, Str $arg2) : StrObject

The replace method performs a smart search and replace operation and returns the modified string (if any modification occurred). This method optionally takes a replacement modifier as it's final argument. Note, this operation expects the 2nd argument to be a replacement String. This method returns a string object.

replace example
  # given 'Hello World'

  $string->replace('World', 'Universe'); # Hello Universe
  $string->replace('world', 'Universe', 'i'); # Hello Universe
  $string->replace(qr/world/i, 'Universe'); # Hello Universe
  $string->replace(qr/.*/, 'Nada'); # Nada

reverse

  reverse() : ArrayObject

The reverse method returns a string where the characters in the string are in the opposite order. This method returns a string value.

reverse example
  # given 'dlrow ,olleH'

  $string->reverse; # Hello, world

rindex

  rindex(Str $arg1, Num $arg2) : NumObject

The rindex method searches for the argument within the string and returns the position of the last occurrence of the argument. This method optionally takes a second argument which would be the position within the string to start searching from (beginning at or before the position). By default, starts searching from the end of the string. This method returns a data type object to be determined after execution.

rindex example
  # given 'explain the unexplainable'

  $string->rindex('explain'); # 14
  $string->rindex('explain', 0); # 0
  $string->rindex('explain', 21); # 14
  $string->rindex('explain', 22); # 14
  $string->rindex('explain', 23); # 14
  $string->rindex('explain', 20); # 14
  $string->rindex('explain', 14); # 0
  $string->rindex('explain', 13); # 0
  $string->rindex('explain', 0); # 0
  $string->rindex('explained'); # -1

roles

  roles() : ArrayRef

The roles method returns the list of roles attached to object. This method returns an array value.

roles example
  # given $string

  $string->roles;

rules

  rules() : ArrayRef

The rules method returns consumed rules.

rules example
  my $rules = $any->rules();

snakecase

  snakecase() : StrObject

The snakecase method modifies the string such that it will no longer have any non-alphanumeric characters and each word (group of alphanumeric characters separated by 1 or more non-alphanumeric characters) is capitalized. The only difference between this method and the camelcase method is that this method ensures that the first character will always be lowercased. Note, this method modifies the string. This method returns a string value.

snakecase example
  # given 'hello world'

  $string->snakecase; # helloWorld

split

  split(RegexpRef $arg1, Num $arg2) : ArrayObject

The split method splits the string into a list of strings, separating each chunk by the argument (string or regexp object), and returns that list as an array reference. This method optionally takes a second argument which would be the limit (number of matches to capture). Note, this operation expects the 1st argument to be a Regexp object or a String. This method returns a array object.

split example
  # given 'name, age, dob, email'

  $string->split(', '); # ['name', 'age', 'dob', 'email']
  $string->split(', ', 2); # ['name', 'age, dob, email']
  $string->split(qr/\,\s*/); # ['name', 'age', 'dob', 'email']
  $string->split(qr/\,\s*/, 2); # ['name', 'age, dob, email']

strip

  strip() : StrObject

The strip method returns the string replacing occurences of 2 or more whitespaces with a single whitespace. This method returns a string object.

strip example
  # given 'one,  two,  three'

  $string->strip; # one, two, three

titlecase

  titlecase() : StrObject

The titlecase method returns the string capitalizing the first character of each word (group of alphanumeric characters separated by 1 or more whitespaces). Note, this method modifies the string. This method returns a string object.

titlecase example
  # given 'mr. john doe'

  $string->titlecase; # Mr. John Doe

trim

  trim() : StrObject

The trim method removes 1 or more consecutive leading and/or trailing spaces from the string. This method returns a string value.

trim example
  # given ' system is   ready   '

  $string->trim; # system is   ready

uc

  uc() : StrObject

The uc method returns an uppercased version of the string. This method returns a string object. This method is an alias to the uppercase method.

uc example
  # given 'exciting'

  $string->uc; # EXCITING

ucfirst

  uc() : StrObject

The ucfirst method returns a the string with the first character uppercased. This method returns a string value.

ucfirst example
  # given 'exciting'

  $string->ucfirst; # Exciting

uppercase

  uppercase() : StrObject

The uppercase method is an alias to the uc method. This method returns a string object.

uppercase example
  # given 'exciting'

  $string->uppercase; # EXCITING

words

  words() : ArrayObject

The words method splits the string into a list of strings, separating each group of characters by 1 or more consecutive spaces, and returns that list as an array reference. This method returns an array value.

words example
  # given "is this a bug we're experiencing"

  $string->words; # ["is","this","a","bug","we're","experiencing"]

ROLES

This package inherits all behavior from the folowing role(s):

RULES

This package adheres to the requirements in the folowing rule(s):