strings Module Reference

Functions/Subroutines
integer function	str_count (str, substr, match_case)
	Count the occurrences of a substring in a string.
character(len=:) function, allocatable	str_replace (str, old, new)
	Replace a substring with another substring within a parent string.
character(len=:) function, allocatable	str_upper (str)
	Convert all letters to uppercase.
character(len=:) function, allocatable	str_lower (str)
	Convert all letters to lowercase.
character(len=:) function, allocatable	str_split (str, delim, col)
	Split string based on a character delimiter and return string given by the column number.
character(len=:) function, allocatable	str_uniq (str, delim)
	Removed duplicative entries from a delimited string.
character(len=:) function, allocatable	str_zfill (str, width)
	Pad a string with zeroes ("0") to specified width. If width is <= input string width, then the original string is returned.
character(len=:) function, allocatable	str_center (str, width, fillchar)
	Center a string to a specified width. The default character to fill in the centered string is a blank character.
character(len=:) function, allocatable	str_reverse (str)
	Reverse a string.
logical function	str_test (str, substr, match_case)
	Return .true. if substr is in str, .false. otherwise.
character(len=:) function, allocatable	str_swapcase (str)
	Return str with case of letters swapped.

Function/Subroutine Documentation

str_center()

character(len=:) function, allocatable strings::str_center	(	character(len=*), intent(in)	str,
		integer, intent(in)	width,
		character(len=1), intent(in), optional	fillchar )

Center a string to a specified width. The default character to fill in the centered string is a blank character.

Parameters

[in]	str	- string to work on
[in]	width	- width of centered string
[in]	fillchar	- character to fill centered string. [OPTIONAL]

Returns

centered string

str_count()

integer function strings::str_count	(	character(len=*), intent(in)	str,
		character(len=*), intent(in)	substr,
		logical, intent(in), optional	match_case )

Count the occurrences of a substring in a string.

Parameters

[in]	str	- string to count from
[in]	substr	- substring to count
[in]	match_case	- use case sensitivity (.true.) or not (.false. [DEFAULT]) [OPTIONAL]

Returns

count of substr in str

str_lower()

character(len=:) function, allocatable strings::str_lower

(

character(len=*), intent(in)

str

)

Convert all letters to lowercase.

Parameters

[in]

str

- string to work on

Returns

modified string with all letters converted to lowercase.

str_replace()

character(len=:) function, allocatable strings::str_replace	(	character(len=*), intent(in)	str,
		character(len=*), intent(in)	old,
		character(len=*), intent(in)	new )

Replace a substring with another substring within a parent string.

Parameters

[in]	str	- string to work on
[in]	old	- string to replace
[in]	new	- string to substritute from old.

Returns

modified string where occurrences of old replaces with new

str_reverse()

character(len=:) function, allocatable strings::str_reverse

(

character(len=*), intent(in)

str

)

Reverse a string.

Parameters

[in]

str

- string to work on

Returns

string reverse of str

str_split()

character(len=:) function, allocatable strings::str_split	(	character(len=*), intent(in)	str,
		character(len=1), intent(in)	delim,
		integer, intent(in)	col )

Split string based on a character delimiter and return string given by the column number.

Parameters

[in]	str	- string to work on
[in]	delim	- character delimiter
[in]	col	- delimited column to return

Returns

string

str_swapcase()

character(len=:) function, allocatable strings::str_swapcase

(

character(len=*), intent(in)

str

)

Return str with case of letters swapped.

Parameters

[in]

str

- input string

str_test()

logical function strings::str_test	(	character(len=*), intent(in)	str,
		character(len=*), intent(in)	substr,
		logical, intent(in), optional	match_case )

Return .true. if substr is in str, .false. otherwise.

Parameters

[in]	str	- string to work on
[in]	substr	- string to search for in str
[in]	match_case	- use case sensitivity (.true.) or not (.false. [DEFAULT]) [OPTIONAL]

Returns

.true. or .false.

str_uniq()

character(len=:) function, allocatable strings::str_uniq	(	character(len=*), intent(in)	str,
		character(len=1), intent(in)	delim )

Removed duplicative entries from a delimited string.

Parameters

[in]	str	- string to work on
[in]	delim	- character delimiter

Returns

modified string

str_upper()

character(len=:) function, allocatable strings::str_upper

(

character(len=*), intent(in)

str

)

Convert all letters to uppercase.

Parameters

[in]

str

- string to work on

Returns

modified string with all letters converted to uppercase.

str_zfill()

character(len=:) function, allocatable strings::str_zfill	(	character(len=*), intent(in)	str,
		integer, intent(in)	width )

Pad a string with zeroes ("0") to specified width. If width is <= input string width, then the original string is returned.

Parameters

[in]	str	- string to work on
[in]	width	- width of padded string

Returns

modified string