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Read & write INI configuration files.
ini-file is a small library for reading & writing INI files, such as those used in early Windows configuration scripts.
INI syntax as a whole is underspecified and its implementations vary. This egg supports only its most basic features (comments, sections, zero- and one-valued properties).
The source for this egg is available at http://github.com/evhan/ini-file.
API[procedure] (read-property [port])
Reads a single INI property from port. If it is a section header, returns a symbol. If it is a property or property/value pair, a pair is returned. Invalid properties will signal an error.
Numeric values and quoted strings are read as Scheme data; everything else is treated as a string. Any such string mapped by the property-value-map parameter will be replaced by its corresponding value.[procedure] (read-ini [file-or-port])
Reads configuration directives from file-or-port until #!eof, returning an alist of alists corresponding hierarchically to the source INI's SECTION -> PROPERTY -> VALUE structure.
Properties appearing before any section heading are associated with the key given by the default-section parameter.
If file-or-port is a port, it is not closed.[procedure] (write-ini alist [file-or-port])
Writes alist as INI directives to file-or-port.
A symbol at the head of alist signifies a section of that name. The write order of sections and properties is reverse that of alist.
The property-separator parameter specifies the character or string with which to separate property names & values.
Any value mapped to by the property-value-map parameter will be replaced by its first corresponding key.
If file-or-port is a port, it is not closed.
Parameters[parameter] (default-section [name])
Specifies the default alist key (usually a symbol) under which properties without a section label will be placed by read-ini. Defaults to 'default.[parameter] (property-separator [char-or-string])
Specifies the character or string to be used by write-ini to separate property names & values. Defaults to #\=.[parameter] (property-value-map [alist])
Specifies an alist mapping strings to Scheme values, used to translate INI values to & from Scheme data when reading & writing INI files.
The default map is simply:
'(("true" . #t) ("false" . #f))[parameter] (allow-empty-values? [boolean])
Specifies whether the empty string should be treated as a valid property value. If #f, an empty value will signal an error. Defaults to #f.[parameter] (allow-bare-properties? [boolean])
Specifies whether "bare" properties (those without a value) should be allowed. If #f, a line not following "key separator value" format will signal an error. Defaults to #f.
Git uses INI syntax for its configuration files. From man git-config:
# # This is the config file, and # a '#' or ';' character indicates # a comment # ; core variables [core] ; Don't trust file modes filemode = false ; Our diff algorithm [diff] external = /usr/local/bin/diff-wrapper renames = true ; Proxy settings [core] gitproxy="proxy-command" for kernel.org gitproxy=default-proxy ; for all the rest
(use ini-file) (read-ini ".git/config") ; => ((core (gitproxy . "default-proxy") ; (gitproxy . "\"proxy-command\" for kernel.org")) ; (diff (renames . #t) ; (external . "/usr/local/bin/diff-wrapper")) ; (core (filemode . #f)))
Note that separate sections of the same name are not merged.
- 0.3 Introduce property-value-map parameter
- 0.2 Use regex unit
- 0.1 Initial release
Copyright (c) 2012 Evan Hanson, 3-Clause BSD.