Advanced tags

This is more advanced tags for the more advanced users because they are more difficult to use.

`<ExifTool:value>`	Insert value from the external program ExifTool. `value` is the name of the ExifTool tag to be used.
`<Substr:pos:count:start>`	Will insert a part of the original filename into the new name. The `pos` and `count` parameters are used to define what part of the filename that will get copyed. Example of use: `<Substr:5:2>` will return `wa` for the filename `The walking man.txt`. The parameters don't have to be numeric indexes, they can also be text strings to search for in the filename. Example of use: `<Substr:ki:an>` will return `ng m` for `The walking man.txt`. The following will yield the same result: `<Substr:ki:4>` In the rare cases where you actually want to search for a number in the filename you can put the search term in quotes. Example of use: `<Substr:"2":2>` will return `nd` for `The 2nd door.txt`. The optional `START` parameter will define where to start searching the name. Example of use: `<Subtr:".":5:3>` will return `Story` for `A.Cool.Story.txt`
`<RSubstr:pos:count:start>`	Works exactly as the `<Substr>` tag but searches the string backwards. Example of use `<RSubstr:2:3>` for `A cool baby` will return `bab`
`<Switch:A:B>` New in version 4.14	Cycle through a list of values, applying each value to files in sequence. This is useful when you want to alternate between fixed labels like odd / even, or use repeating patterns such as A, B, C, etc. You can use any number of parameters. Replace `A:B` with the values you want to switch between. The first file will get `A`, the second file will get `B`, the third file will get `A` again, and so on. Example of use: `<Switch:Odd:Even>`
`<Delimiter:delimiter>` Alias: `<-:delimiter>` New in version 4.15	Inserts a delimiter but will never appear in the beginning or end of the filename and will not repeat. If separating metadata tags without this tag, you might end up with repeated delimiters when some metadata values are empty. For example: <Title> - <Artist> - <Album> - <Year> If the `<Album>` value is empty, you end up with a filename like this: Heroes - David Bowie - - 1977 To prevent this, the `<Delimiter>` tag can be used like this: <Title><Delimiter: - ><Artist><Delimiter><Album><Delimiter><Year> The result for the same case as above will be: Heroes - David Bowie - 1977 Use the `delimiter` parameter to define the delimiter to use. If the same delimiter is used multiple times, only the first needs a parameter: <Title><Delimiter: - ><Artist><Delimiter><Album> Multiple different delimiter parameters are supported like this: <Width><Delimiter:x><Height><Delimiter: - ><GPS Country><Delimiter><GPS City> There is also a compact syntax alias for the delimiter tag, which is just `<->`. This is the same as above, but much shorter: <Width><-:x><Height><-: - ><GPS Country><-><GPS City> In the above example, the `x` delimiter will only be inserted if both `Width` and `Height` are not empty. If only `Width` and `Height` has values and the GPS-tags don't, the `-` delimiter will not be inserted. If both GPS-tags have values, the `-` delimiter will be inserted between them.
`<Csv:column>`	When data has been imported with the Import data from CSV functionality in the Import menu, the values can be used with this tag. The `column` is a numeric value representing the column index with the first column having numeric value 1.
`<Rand:min:max>`	Inserts a random number. `min` and `max` can be used to specify a minimum and a maximum range.
`<Rand Str:length>`	Inserts a random string. Use the `length` value to specify the length of the string. Uses the values from a to z in lower case to produce the random string. To get upper case letters, you can use the `upper` tag modifier: `<Rand Str:8:upper>`.
`<Inc Hex:start:step>`	Will insert an incrementing hex based number starting with `start` and up. `start` can be any number value. Note `start` should be a decimal number, not a hex based number. For more information, see `<Inc Nr>` tag. Default value for `start` is 1.
`<Inc Roman:start:step>`	Will insert an incrementing roman numeral starting with `start` and up. `start` can be any number value. Note `start` should be an integer number, not a roman numeral. For more information, see `<Inc Nr>` tag. Default value for `start` is 1.
`<Dec Nr:start:step>`	Works like the `<Inc Nr>` tag but ads a decrementing number instead of an incrementing one. The `start` value is used to tell the program what the starting number will be and `step` is the step value between each file.
`<File Content :pos:count:filename>`	Will insert a text phrase from a file. It will use the text starting a position `POS` in the filename and copy `count` characters. If `filename` is specified, Advanced Renamer will search for the text phrase in that file. If `filename` is omitted the file which is being renamed is used. If `filename` is specified it must be quoted with ". Examples of use: <File Content:46:12:"c:\program files\files\myfile.txt"> <File Content:56:9> Note: `filename` is optional. `pos` and `count` is required.
`<File Line:line>`	Will insert a line of text from the file. The parameter `line` is the line number, starting from 1. Note, do not use on binary files.
`<MetaData:fieldname>` New in version 4.15	Access metadata fields that have the same name as built-in tags.