string.f90

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Data Types
type	string
	Represents text as a sequence of ASCII code units. The derived type wraps an allocatable character array. More...
interface	len
	Return the length of a string. More...
interface	len_trim
	Return the trimmed length of a string. More...
interface	trim
	Return the trimmed string. More...
interface	operator(//)
	Concatenation operator. More...
interface	operator(.contains.)
	Check whether a string belongs to a list or not. More...
interface	index
	Index operator. More...

Functions/Subroutines
logical function, public	starts_with (str, arg1, idx)
	Checks if a string starts with a given prefix Returns .true. if the string str (after trimming leading/trailing whitespace) begins exactly with the substring arg1. The function uses index() after trimming both strings with trim(adjustl()).
character function, public	head (str)
	Returns the first non-blank character of a string.
character function, public	tail (str)
	Returns the last non-blank character of a string.
character(:) function, allocatable, public	concat (str1, str2)
	Smart concatenation that removes continuation markers (&) and handles line-continuation rules.
pure character(len_trim(str)) function, public	uppercase (str)
	Convert string to upper case (respects contents of quotes).
pure character(len_trim(str)) function, public	lowercase (str)
	Convert string to lower case (respects contents of quotes).
subroutine, public	writechk (unit, str)
	Write a long line split into chunks of size CHKSIZE with continuation (&).
character(1) function, public	previous (line, pos)
	Returns the previous non-blank character before position pos (updates pos).