7.18 Customizing the footnotes formatting

Each footnote is associated with a footnote entry. Several footnote entries are grouped in a footnote section. When a footnote appears, two things must be formatted: in the main text the place where the footnote appear and the footnote text.

Two functions, with corresponding function references control the formatting of the footnotes:

Function Reference: (\@lines $text_for_document) foot_line_and_ref $number_in_doc $number_in_page $footnote_id $place_id $document_file $footnote_file \@lines \%state

$number_in_doc is the footnote number in the whole document, $number_in_page is the footnote number in the current page. $footnote_id is an identifier for the footnote in the footnote text which should be used to make target for references to that footnote, while $place_id is an identifier for the location of the footnote in the main document. Similarly, $document_file is the file name of the file containing the text where the footnote appears in the main document, while $footnote_file is the file name of the file where the footnote text appears.

\@lines is a reference on an array containing the footnote text lines, allready formatted. And \%state holds informations about the context at the footnote place in the main document. As usual the most usefull entry is preformatted which is true if the footnote appears in a preformatted context.

This function returns a reference on an array, \@lines containing the updated footnote text for the footnote entry, and $text_for_document, the text appearing at the footnote place in the main document, linking to the footnote entry.

The following function is only used when footnotes are at the bottom of a page and the document is split. For customization of the footnotes page in case they are on a separated page or section, Customizing the layout of the special pages. For the determination of the footnote locations, Page layout related command line options.

Function Reference: foot_section \@footnotes_lines

This function formats a group of footnotes. \@footnotes_lines is a reference on an array holding the lines of all the footnote entries formatted as explained above. This function modifies the reference.

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