* Fields:
- %fieldname% - inserts metadata field named <fieldname>, eg. "%artist%"
- %__fieldname% - inserts tech info field named <fieldname>, eg. "%__bitrate%"
- special fields: %_path%, %_path_raw%, %_filename%, %_filename_ext%, %_directoryname%, %_subsong%, %_foobar2000_version%, %_length%, %_length_seconds%
- special fields (playlist and copy command): %_isplaying%, %_ispaused%, %_playlist_number%
- special fields (status bar, window title and copy command): %_time_elapsed%, %_time_remaining%, %_time_total%, %_time_elapsed_seconds%, %_time_remaining_seconds%, %_time_total_seconds%, %_ispaused%
- note: %_time_total% / %_time_total_seconds% get data from playback core while %_length% / %_length_seconds% get data from database, in some rare cases either of them may be more reliable
- note: all %...% fields automatically truncate multiline strings, if you don't want that, see $meta() function
- hint: you can see all metadata (%blah%) and tech info (%__blah%) fields in file info box

* Colors (playlist and status bar only):
- XXXXXX - set text color to XXXXXX, where XXXXXX is new text color in hex; will invert the color on selected fields
- XXXXXX|YYYYYY - set text color to XXXXXX on non-selected fields and to YYYYYY on selected fields
-  - reset to default color

* Right-aligned text (playlist and status bar only):
- use tab character (or "$char(9)") to indicate right-aligned text (eg. track length)

* Functions:
- $abbr(x) - inserts abbreviation of x, eg. "$abbr(%album%)" - will convert album name of "Final Fantasy VI" to "FFVI"
- $abbr(x,y) - inserts abbreviation of x if x is longer than y characters; otherwise inserts full value of x, eg. "$abbr(%album%,10)"
- $lower(x), $upper(x) - converts x to in lower/uppercase, eg. "$upper(%title%)"
- $num(x,y) - displays x number and pads with zeros up to y characters (useful for track numbers), eg. $num(%tracknumber%,2)
- $caps(x) - converts first letter in every word of x to uppercase, and all other letters to lowercase, eg. "blah BLAH" -> "Blah Blah"
- $caps2(x) - similar to $caps, but leaves uppercase letters as they are, eg. "blah BLAH" -> "Blah BLAH"
- $if(A,B,C) - if A contains at least one valid tag, executes/displays B, otherwise executes/displays C; eg. "$if(%artist%,%artist%,unknown artist)" will display artist name if present; otherwise will display "unknown artist"; note that "$if(A,A,)" is equivalent to "[A]" (see below)
- $if2(a,B) - same as $if(a,a,B)
- $ifgreater(a,b,c,d) - if number a is greater than number b, display/execute c, otherwise disply/execute d
- $iflonger(a,b,c,d) - if string a is longer than b characters, display/execute c, otherwise display/execute d
- $longest(A,B,C,....) - compares lengths of output strings produced by A,B,C... and displays the longest one, eg. "$longest(%title%,%comment%)" will display either title if it's longer than comment; otherwise it will display comment
- $len(x) - returns length of string X in characters
- $pad(x,y), $pad_right(x,y) - pads x with spaces up to y characters
- $cut(x,y) - truncates x to y characters
- $padcut(x,y), $padcut_right(x,y) - pads x to y characters and truncates to y if longer
- $insert(a,b,n) - inserts string b into string a after n characters
- $add(x,y), $sub(x,y), $mul(x,y), $div(x,y), $mod(x,y), $min(x,y), $max(x,y) - various math operations
- $left(x,y) - returns y first characters of string x
- $right(x,y) - returns y last characters of string x
- $and(x,y), $or(x,y), $xor(x,y), $not(x) - logical operations, for use with $if()
- $fix_eol(x), $fix_eol(x,y) - truncates multiline strings, adding " (...)" (version 1) or y (version 2) at the end
- $meta(x) - inserts value of metadata field named x, eg. "$meta(artist)"; same as %artist% except it doesn't truncate multiline values
- $meta(x,y) - inserts y-th value for metadata field named x, used for multiple values per one field name (eg. multiple artists - $meta(artist,1), $meta(artist,2))
- $meta_sep(x,y), $meta_sep(x,y,z) - inserts metadata field named x, with custom separators for multiple values, eg. "$meta(artist,', ',' and ')" for three artists named A, B, C will produce this - "A, B and C"
- $meta_num(x) - inserts number of present values for metadata field x
- $info(x) - inserts tech info field named x, eg. "$info(bitrate)" is same as %__bitrate%, except it doesn't truncate multiline values
- $char(x) - inserts unicode character no. x, eg. "$char(3)" produces the character controlling color codes in playlist
- $strcmp(x,y) - returns "1" when strings x and y are identical, empty string otherwise; intended for use with $if()
- $stricmp(x,y) - non-case-sensitive version of $strcmp(x,y)
- $directory(x), $directory(x,n) - extracts directory name from file path, optionally goes up by n directory levels, eg. $directory(%_path%,2)
- $greater(x,y) - compares two integers, tests if x>y, intended for use with $if() and logical operators
- $longer(x,y) - compares two strings, tests if x is longer than y, intended for use with $if() and logical operators
- $strchr(x,y) - finds first occurence of character y in string x
- $strrchr(x,y) - finds last occurence of character y in string x
- $strstr(x,y) - finds first occurence of string y in string x
- $progress(a,b,c,d,e) - displays progress bar, eg. $progress(%_time_elapsed_seconds%,%_time_total_seconds%,20,'#','=') will display something like "====#===============", with the # character moving with playback position
- $progress2(a,b,c,d,e) - displays progress bar, eg. $progress(%_time_elapsed_seconds%,%_time_total_seconds%,20,'#','=') will display something like "#####==============="
- $select(n,a,b,c,....) - returns n-th of a,b,c... params
- $repeat(x,y) - repeats x y times
- $replace(a,b,c) - replaces all occurances of string b in string a with string c
- $ext(x) - extacts extension from file path / file name, eg. $ext(%_path%)
- $substr(a,b,c) - returns substring of string a, starting from b-th character and ending at c-th character, eg. $substr('blah',1,2) returns 'bl'
- $rgb(a,b,c), $rgb(a,b,c,d,e,f) - converts decimal color values to color codes (see colors above)
- $transition(a,b,c) - generates color codes between characters in string a, interpolationg colors from b to c
- $blend(a,b,c,d) - generates a color in c/d between colors a and b
- $rand() - generates a random number in range from 0 to 2^32-1

* Variable operations.
Variables allow you to store intermediate results of text processing, in order to reduce size of your formatting string.
Variables are *not* kept between instances of title formatting process, or allow you to modify actual file info.
Usage:
- $put(name,text) - sets variable named <name> to <text> and returns <text>, eg. "$put(x,blah)" sets variable x to 'blah' and returns 'blah'. - $puts(name,text) - same as $put(name,text), but returns emtpy string.
- $get(name) - returns value of variable <name>, eg. "$puts(x,blah)$get(x)$get(x)" will return 'blahblah'.

* Other:
- [ .... ] - displays contents of brackets only if at least one of fields referenced inside has been found, eg. "%artist% - [%album% / ]%title%" will hide [] block if album field is not present; note that mixing brackets with $functions may give unpredictable results and should be avoided (use $if() instead)
- ' (single quotation mark) - outputs raw text without parsing, eg, 'blah$blah%blah[][]' will output the contained string and ignore all reserved characters (%,$,[,]) in it; you can use this feature to insert square brackets for an example.
- end-of-line characters are ignored; use $char() to force weird character sequences if you need them; you can safely split your string into multiple lines without affecting its output
- "//" - comments, can be placed only at the beginning of new line, they prevent any characters following them until the end of line from being parsed

eg. "[%artist% - ][$abbr(%album%,10)[ %tracknumber%] / ]%title%"