+
+option "format" f
+#~~~~~~~~~~~~~~~~
+"How to format the output"
+string typestr="<format_string>"
+optional
+details="
+ A string that specifies how the output of the select query is
+ goint to be formated. Depending on the chosen select-mode,
+ several conversion specifiers are available and a different
+ default value for this option applies.
+
+ adu knows four different types of directives: string, id,
+ count and size. These are explained in more detail below.
+
+ The general syntax for string and id directives is %(name:a:w)
+ where \"name\" is the name of the directive, \"a\" specifies
+ the alignment and \"w\" is the width specifier which allows
+ to give a field width.
+
+ The alignment specifier is a single character: Either \"l\",
+ \"r\", or \"c\" may be given to specify left, right and
+ centered alignment respectively. The with specifier is a
+ positive integer. Both \"a\" and \"w\" are optional.
+
+ A string directive supported by adu is \"dirname\" which is
+ subsitituted by the name of the directory. It is available
+ if either user_list or global_list mode was selected via
+ --select-mode.
+
+ Examples:
+
+ \"%(diname)\" # print dirname without any padding
+ \"%(dirname:c:20)\" # center dirname in a 20 chars wide field
+
+ The other two types of directives, count and size, are used
+ for numbers. The syntax for these is %(name:a:w:u). The \"a\"
+ and the \"w\" specifier have the same meaning as for the string
+ and id directives. The additional \"u\" specifier selects a unit
+ in which the number that corresponds to the directive should
+ be formated. All three specifiers are optional.
+
+ Possible units are the characters of the set \" bkmgtBKMGT\"
+ specifying bytes, kilobytes, megabytes, gigabytes and
+ terabytes respectively. The difference between the lower and
+ the upper case variants is that the lower case specifiers
+ select 1024-based units while the upper case specifiers use
+ 1000 as the basis.
+
+ The whitespace character is like \"b\", but a space character
+ is printed instead of a unit.
+
+ Two more characters \"h\" and \"H\" (human-readable) are also
+ available that choose an appropriate unit depending on the
+ size of the number being printed.
+
+ An asterisk prepended to the unit specifier prevents the
+ unit from being printed. This is useful mainly for feeding
+ the output of adu to scripts that do not expect units.
+
+ In order to print a percent sign, use \"%%\". Moreover, adu
+ understands \"\n\" and \"\t\" and outputs a newline and a
+ tab character for these combinations respectively.
+
+ Examples:
+
+ \"%(size:r::G)\" # print size in gigabytes right-aligned
+ \"%(size:r5::G)\" # as before, but use 5 char wide field
+ \"%(size:r5::*G)\" # as before, but supress trailing \"G\"
+
+ List of directives and types known to adu, together with their types:
+
+ name type meaning
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ pw_name string user name
+ uid id user id
+ files count number of files
+ dirname string name of the directory
+ size size total size/ directory size
+ dirs count number of directories
+
+ Not all directives are available for each mode:
+
+ name available in directives
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ pw_name user_list, user_summary
+ uid user_list, user_summary
+ files everywhere
+ dirname user_list, global_list
+ size everywhere
+ dirs suer_summary, global_summary
+"