Features

INI Parsing

Load INI data from a physical file or from an in-memory character string
Automatic detection of all sections — no need to declare section names upfront
Automatic detection of all options within each section
Multi-line option values (continuation lines without = are joined to the previous option)
Inline comments stripped automatically (delimited by ;)
Configurable option separator (default =, can be set to : or any single character)

Add sections and options programmatically with add
Set option values of any intrinsic type (integer, real, logical, character) and all PENF kinds
Array-valued options with optional delimiter
Remove sections and options with del
Save to a named file with save

Check whether a section exists: has_section
Check whether an option exists (globally or within a section): has_option
Get a section name by index: section
Get an option name by index: option (not yet in public API — use loop)
Get the index of a named section or option: index
Count the number of space-separated values in an option: count_values
Retrieve all option name/value pairs as a 2-D character array: items
Iterate over all options (or options of one section) with a while loop: loop
Pretty-print the full file contents to any Fortran unit: print

FiNeR follows the common INI conventions:

Element	Syntax
Section header	`[section-name]`
Option	`key = value`
Comment line	`!`, `;`, or `#` as first non-blank character
Inline comment	`;` followed by comment text
Multi-line value	continuation line has no `=`; it is appended to the previous option
Default separator	`=` (configurable)

Example:

ini

; database settings
[database]
host = localhost
port = 5432
tags = alpha beta gamma

[logging]
level = info
! end of file