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| subroutine | character_assign_string (lhs, rhs) |
| | Assignment overloading. Assign a character array to a string.
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| subroutine | string_assign_character (lhs, rhs) |
| | Assignment overloading. Assign a string to a character array.
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| elemental integer function | string_len (this) |
| | Length of the string entity.
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| pure integer function | string_len_trim (this) |
| | Length of the string entity without trailing blanks (len_trim).
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| pure character(:) function, allocatable | string_trim (this) |
| | Returns a copy of the string with trailing blanks removed.
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| pure character(:) function, allocatable | string_concat_string (lhs, rhs) |
| | Concatenation of two string objects.
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| pure character(:) function, allocatable | string_concat_character (lhs, rhs) |
| | Concatenation of string and character expression.
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| pure character(:) function, allocatable | character_concat_string (lhs, rhs) |
| | Concatenation of character expression and string.
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| elemental logical function | string_eq_string (lhs, rhs) |
| | Equality comparison between two string objects.
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| elemental logical function | string_eq_character (lhs, rhs) |
| | Equality comparison between string and character expression.
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| elemental logical function | character_eq_string (lhs, rhs) |
| | Equality comparison (reversed) between character expression and string.
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| subroutine | write_formatted (dtv, unit, iotype, v_list, iostat, iomsg) |
| | Formatted output procedure for user-defined type string (UDTIO) This procedure is called automatically when a formatted WRITE statement is used with a variable of type string (when using the DT edit descriptor or default formatted output for the type).
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| 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()).
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| character function, public | head (str) |
| | Returns the first non-blank character of a string.
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| character function, public | tail (str) |
| | Returns the last non-blank character of a string.
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| character(:) function, allocatable, public | concat (str1, str2) |
| | Smart concatenation that removes continuation markers (&) and handles line-continuation rules.
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| pure character(len_trim(str)) function, public | uppercase (str) |
| | Convert string to upper case (respects contents of quotes).
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| pure character(len_trim(str)) function, public | lowercase (str) |
| | Convert string to lower case (respects contents of quotes).
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| subroutine, public | writechk (unit, str) |
| | Write a long line split into chunks of size CHKSIZE with continuation (&).
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| character(1) function, public | previous (line, pos) |
| | Returns the previous non-blank character before position pos (updates pos).
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| logical function | strings_contain_string (lhs, rhs) |
| | Checks whether an array of string contains a given string.
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| logical function | strings_contain_character (lhs, rhs) |
| | Checks whether an array of string contains a given character expression.
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| logical function | characters_contain_character (lhs, rhs) |
| | Checks whether an array of character contains a given character expression.
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| logical function | characters_contain_string (lhs, rhs) |
| | Checks whether an array of character contains a given string.
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