Difference between revisions of "MusicBrainz Picard/Documentation/Scripting"
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| − | + | #REDIRECT [[MusicBrainz Picard]] |
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| − | ==Syntax== |
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| − | The syntax is derived from [http://wiki.hydrogenaudio.org/index.php?title=Foobar2000:Titleformat_Reference Foobar2000's titleformat]. There are three base elements: '''text''', '''variable''' and '''function'''. Variables consist of alpha-numeric characters enclosed in percent signs (e.g. <code><nowiki>%artist%</nowiki></code>). Functions start with a dollar sign and end with an argument list enclosed in parentheses (e.g. <code><nowiki>$lower(...)</nowiki></code>). |
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| − | |||
| − | To use parenthesis or commas as-is inside a function call you must escape them with a backslash. |
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| − | |||
| − | ==Metadata Variables== |
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| − | |||
| − | See [[Picard Tags|Picard tags]] for list of usable variables. |
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| − | |||
| − | ==Technical Variables== |
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| − | |||
| − | ===%_extension%=== |
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| − | |||
| − | * Extension of the file name. For example ''mp3'' for file ''01 Track.mp3''. |
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| − | |||
| − | ==Functions== |
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| − | |||
| − | ===$if(if,then,else)=== |
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| − | |||
| − | * If <code><nowiki>if</nowiki></code> is not empty, it returns <code><nowiki>then</nowiki></code>, otherwise it returns <code><nowiki>else</nowiki></code>. |
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| − | |||
| − | ===$if2(a1,a2,a3,...)=== |
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| − | |||
| − | * Returns first non empty argument. |
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| − | |||
| − | ===$lower(text)=== |
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| − | |||
| − | * Returns <code><nowiki>text</nowiki></code> in lower case. |
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| − | |||
| − | ===$upper(text)=== |
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| − | |||
| − | * Returns <code><nowiki>text</nowiki></code> in upper case. |
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| − | |||
| − | ===$left(text,num)=== |
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| − | |||
| − | * Returns first <code><nowiki>num</nowiki></code> characters from <code><nowiki>text</nowiki></code>. |
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| − | |||
| − | ===$matchedtracks()=== |
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| − | ''Added in version 0.12'' |
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| − | |||
| − | * Returns the number of matched tracks within a release. (Since Picard 0.12) |
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| − | |||
| − | * Note: This function is designed to be used in file naming scripts. When used in a tagging script it will always return zero. |
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| − | |||
| − | ===$right(text,num)=== |
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| − | |||
| − | * Returns last <code><nowiki>num</nowiki></code> characters from <code><nowiki>text</nowiki></code>. |
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| − | |||
| − | ===$num(num,len)=== |
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| − | |||
| − | * Returns <code><nowiki>num</nowiki></code> formatted to <code><nowiki>len</nowiki></code> digits. |
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| − | |||
| − | ===$replace(text,search,replace)=== |
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| − | |||
| − | * Replaces occurrences of <code><nowiki>search</nowiki></code> in <code><nowiki>text</nowiki></code> with value of <code><nowiki>replace</nowiki></code> and returns the resulting string. |
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| − | |||
| − | ===$rsearch(text,pattern)=== |
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| − | |||
| − | * [https://docs.python.org/2/library/re.html#regular-expression-syntax Regular expression] search. This function will return the first matching group. |
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| − | |||
| − | ===$rreplace(text,pattern,replace)=== |
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| − | |||
| − | * [https://docs.python.org/2/library/re.html#regular-expression-syntax Regular expression] replace. |
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| − | |||
| − | ===$in(x,y)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> contains <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$inmulti(x,y)=== |
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| − | |||
| − | * Returns true, if multi-value variable <code><nowiki>x</nowiki></code> contains <code><nowiki>y</nowiki></code>. (Since Picard 1.0) |
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| − | |||
| − | ===$unset(name)=== |
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| − | |||
| − | * Unsets the variable <code><nowiki>name</nowiki></code>. |
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| − | |||
| − | ===$set(name, value)=== |
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| − | |||
| − | * Sets the variable <code><nowiki>name</nowiki></code> to <code><nowiki>value</nowiki></code>. |
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| − | |||
| − | Note: To create a variable which can be used for the file naming string, but which will not be written as a tag in the file, prefix the variable name with an underscore. %something% will create a "something" tag; %_something% will not. |
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| − | |||
| − | ===$setmulti(name, value, separator="; ")=== |
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| − | |||
| − | * Sets the variable <code><nowiki>name</nowiki></code> to <code><nowiki>value</nowiki></code>, using the separator (or "; " if not passed) to coerce the value back into a proper multi-valued tag. This can be used to operate on multi-valued tags as a string, and then set them back as proper multi-valued tags, e.g |
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| − | <pre>$setmulti(genre,$lower(%genre%))</pre>. (Since Picard 1.0) |
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| − | |||
| − | ===$get(name)=== |
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| − | |||
| − | * Returns the variable <code><nowiki>name</nowiki></code> (equivalent to <code><nowiki>%name%</nowiki></code>). |
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| − | |||
| − | ===$copy(new,old)=== |
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| − | |||
| − | * Copies metadata from variable <code><nowiki>old</nowiki></code> to <code><nowiki>new</nowiki></code>. The difference between <code><nowiki>$set(new,%old%)</nowiki></code> is that <code><nowiki>$copy(new,old)</nowiki></code> copies multi-value variables without flattening them. (Since Picard 0.9.) |
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| − | |||
| − | ===$copymerge(new,old)=== |
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| − | |||
| − | * Merges metadata from variable <code><nowiki>old</nowiki></code> into <code><nowiki>new</nowiki></code>, removing duplicates and appending to the end, so retaining the original ordering. Like <code><nowiki>$copy</nowiki></code>, this will also copy multi-valued variables without flattening them. (Since Picard 1.0) |
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| − | |||
| − | ===$trim(text[,char])=== |
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| − | |||
| − | * Trims all leading and trailing whitespaces from <code><nowiki>text</nowiki></code>. The optional second parameter specifies the character to trim. |
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| − | |||
| − | ===$add(x,y)=== |
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| − | |||
| − | * Add <code><nowiki>y</nowiki></code> to <code><nowiki>x</nowiki></code>. |
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| − | |||
| − | ===$sub(x,y)=== |
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| − | |||
| − | * Subtracts <code><nowiki>y</nowiki></code> from <code><nowiki>x</nowiki></code>. |
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| − | |||
| − | ===$div(x,y)=== |
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| − | |||
| − | * Divides <code><nowiki>x</nowiki></code> by <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$mod(x,y)=== |
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| − | |||
| − | * Returns the remainder of <code><nowiki>x</nowiki></code> divided by <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$mul(x,y)=== |
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| − | |||
| − | * Multiplies <code><nowiki>x</nowiki></code> by <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$or(x,y)=== |
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| − | |||
| − | * Returns true, if either <code><nowiki>x</nowiki></code> or <code><nowiki>y</nowiki></code> not empty. |
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| − | |||
| − | ===$and(x,y)=== |
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| − | |||
| − | * Returns true, if both <code><nowiki>x</nowiki></code> and <code><nowiki>y</nowiki></code> are not empty. |
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| − | |||
| − | ===$not(x)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> is empty. |
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| − | |||
| − | ===$eq(x,y)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> equals <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$ne(x,y)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> not equals <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$lt(x,y)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> is lower than <code><nowiki>y</nowiki></code>. |
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| − | ===$lte(x,y)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> is lower than or equals <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$gt(x,y)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> is greater than <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$gte(x,y)=== |
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| − | |||
| − | * Returns true, if <code><nowiki>x</nowiki></code> is greater than or equals <code><nowiki>y</nowiki></code>. |
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| − | |||
| − | ===$noop(...)=== |
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| − | * Does nothing (useful for comments or disabling a block of code). |
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| − | ===$len(text)=== |
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| − | |||
| − | * Returns the number of characters in text. |
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| − | ===$performer(pattern="",join=", ")=== |
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| − | * Returns the performers where the performance type (e.g. "vocal") matches <code>pattern</code>, joined by <code>join</code>. (Since Picard 0.10) |
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| − | ===$firstalphachar(text,nonalpha="#")=== |
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| − | |||
| − | * Returns the first character of <code>text</code>. If <code>text</code> is not an alphabetic character <code>nonalpha</code> is returned instead. (Since Picard 0.12) |
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| − | |||
| − | ===$initials(text)=== |
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| − | |||
| − | * Returns the first character of each word in <code>text</code>, if it is an alphabetic character. (Since Picard 0.12) |
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| − | |||
| − | ===$truncate(text,length)=== |
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| − | |||
| − | * Truncate <code>text</code> to <code>length</code>. (Since Picard 0.12) |
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| − | |||
| − | ===$firstwords(text,length)=== |
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| − | * Like $truncate except that it will only return the complete words from <code>text</code> which fit within <code>length</code> characters. (Since Picard 0.12) |
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| − | |||
| − | ===$swapprefix(text,*prefixes="A","The")=== |
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| − | * Moves the specified prefixes from the beginning to the end of text. If no prefix is specified 'A' and 'The' are used by default. (Integrated since Picard 1.3, previously as a plugin since Picard 0.13) |
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| − | ===$delprefix(text,*prefixes="A","The")=== |
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| − | * Deletes the specified prefixes from the beginning of text. If no prefix is specified 'A' and 'The' are used by default. (Since Picard 1.3) |
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| − | ==Tagger Script Examples== |
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| − | '''''Options'' → ''Options...'' → ''Advanced'' → ''Scripting''''' |
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| − | Tagger Script usually creates, modifies or deletes metadata variables. |
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| − | ===Artist names=== |
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| − | <pre>$if($search(%album%,(feat. conductor)), |
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| − | $set(artist,%orchestra%)) |
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| − | </pre> |
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| − | * ''Stupid assumption that all classical albums have "feat. conductor" in the title, but it shows the idea. :)'' |
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| − | |||
| − | === Live tracks on live albums=== |
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| − | <pre>$if($and($eq(%releasetype%,live),$not($in(%title%,\(live\)))),$set(title,%title% \(live\))) |
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| − | </pre> |
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| − | ===Remove "feat." from track titles=== |
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| − | <pre>$set(title,$rreplace(%title%,\\s\\\(feat. [^\)]+\\\),)) |
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| − | </pre> |
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| − | |||
| − | ===Convert triple-dot to ellipsis=== |
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| − | <pre>$set(title,$replace(%title%,...,…)) |
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| − | $set(album,$replace(%album%,...,…)) |
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| − | </pre> |
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| − | This one is useful for people concerned about correct typography and also fixes one problem on Linux: if an album (assuming it's also a directory) is called something like "...for you!", it is considered hidden and therefore might be not accessible from some applications. |
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| − | ===Remove "Various Artists" on compilations=== |
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| − | By default, Picard marks various-artist compilations with an album artist called "Various Artists". Even if you don't have anything by [[artist:4e46dd54-81a6-4a75-a666-d0e447861e3f|Torsten Pröfrock]], it still means that you player will sort your comps between Vangelis and VCR instead of down at the end, which you may not want. |
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| − | This is easy to fix: |
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| − | <pre>$if($and($eq(%compilation%,1), $eq(%albumartist%,Various Artists)), $unset(albumartist) $unset(albumartistsort))</pre> |
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| − | ===Merge writers into both composer and lyricist tags=== |
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| − | ''Supported from version 1.0'' |
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| − | |||
| − | Suppose you want to add anyone involved in writing to both the composer and lyricist tags. |
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| − | <pre>$copymerge(composer,writer) |
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| − | $copymerge(lyricist,writer) |
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| − | $unset(writer)</pre> |
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| − | ==File Naming Examples== |
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| − | '''''Options'' → ''Options...'' → ''File naming''''' |
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| − | |||
| − | ===Lower case filenames with underscores=== |
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| − | <pre>$lower($replace(%albumartist%/%album%/$num(%tracknumber%,2) %title%, ,_)) |
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| − | </pre> |
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| − | ===(Year) only if available=== |
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| − | <pre>$if(%date%,\($left(%date%,4)\)) |
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| − | </pre> |
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| − | |||
| − | ===Use a different naming pattern for NATs=== |
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| − | <pre>$if($eq([non-album tracks],%album%),[non-album tracks]/%tracknumber%. %artist% - ,%artist% - $if(%date%, $left(%date%,4) )- %album%/%tracknumber%.)%title% |
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| − | </pre> |
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| − | |||
| − | Result: |
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| − | * Non-Album Tracks: [non-album tracks]/Band Name - Track Name.ext |
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| − | * Tracks in releases: Band Name - year - Release Name/##. Track Name.ext |
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| − | |||
| − | ===Organize by alphabetical folders excluding leading The=== |
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| − | To keep music organized by initial letter of artist's name you must first set the directory where saved files are to be stored in Options --> Moving Files. |
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| − | Then under Options --> File Naming check Rename files when saving. This script will then move saved files to your Moving Files location using the following hierarchy: <br> |
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| − | Result: |
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| − | * A/Artist Name, The/Year - Album Name (type-status)/Album (type-status)-disc#-Track-Song Title<br> |
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| − | for Various Artists-Albums<br> |
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| − | * Various Artist/Year - Album Name (type-status)/Album (type-status)-disc#-Track-Song Title |
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| − | <pre> |
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| − | $if($eq(%musicbrainz_albumartistid%,89ad4ac3-39f7-470e-963a-56509c546377), |
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| − | $left($if2(%albumartistsort%, %artistsort%),30)/ |
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| − | $if(%date%,$left(%date%,4)) - $left(%album%,40) \(%releasestatus%-%releasetype%\)/ |
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| − | $left(%album%,30) \(%releasestatus%-%releasetype%\)-$if($gt(%totaldiscs%,1),$if2(%media%,CD)%discnumber%-,)$num(%tracknumber%,2)-$left(%title%,30) |
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| − | |||
| − | , |
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| − | $upper($firstalphachar($if2(%albumartistsort%, %artistsort%),#)) |
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| − | /$left($if2(%albumartistsort%, %artistsort%),18)/ |
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| − | $if(%date%,$left(%date%,4)) - $left(%album%,40) \(%releasestatus%-%releasetype%\)/ |
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| − | $left(%album%,30) \(%releasestatus%-%releasetype%\)-$if($gt(%totaldiscs%,1),$if2(%media%,CD)%discnumber%-,)$num(%tracknumber%,2)-$left(%title%,30) |
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| − | ) |
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| − | </pre> |
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| − | |||
| − | [[Category:MusicBrainz Picard]] [[Category:How To]] [[Category:WikiDocs Page]] |
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Latest revision as of 21:16, 25 November 2014
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