Text::BibTeX::NameFormat - Online Linux Manual PageSection : 3
Updated : 2022-01-21
Source : perl v5.34.0
Note : User Contributed Perl Documentation
NAMEText::BibTeX::NameFormat − format BibTeX−style author names
SYNOPSIS use Text::BibTeX::NameFormat;
$format = Text::BibTeX::NameFormat−>($parts, $abbrev_first);
$format−>set_text ($part,
$pre_part, $post_part,
$pre_token, $post_token);
$format−>set_options ($part, $abbrev, $join_tokens, $join_part
## Uses the encoding/binmode and normalization form stored in $name
$formatted_name = $format−>apply ($name);
DESCRIPTIONAfter splitting a name into its components parts (represented as a Text::BibTeX::Name object), you often want to put it back together again as a single string formatted in a consistent way. Text::BibTeX::NameFormat provides a very flexible way to do this, generally in two stages: first, you create a ‟name format” which describes how to put the tokens and parts of any name back together, and then you apply the format to a particular name. The ‟name format” is encapsulated in a Text::BibTeX::NameFormat object. The constructor (new) includes some clever behind-the-scenes trickery that means you can usually get away with calling it alone, and not need to do any customization of the format object. If you do need to customize the format, though, the set_text() and set_options() methods provide that capability. Note that Text::BibTeX::NameFormat is a fairly direct translation of the name-formatting C interface in the btparse library. This manual page is meant to provide enough information to use the Perl class, but for more details and examples, consult bt_format_names.
CONSTANTSTwo enumerated types for dealing with names and name formatting have been brought from C into Perl. In the btparse documentation, you'll see references to bt_namepart and bt_joinmethod. The former lists the four ‟parts” of a BibTeX name: first, von, last, and jr; its values (in both C and Perl) are BTN_FIRST, BTN_VON, BTN_LAST, and BTN_JR. The latter lists the ways in which bt_format_name() (the C function that corresponds to Text::BibTeX::NameFormat's apply method) can join adjacent tokens together: BTJ_MAYTIE, BTJ_SPACE, BTJ_FORCETIE, and BTJ_NOTHING. Both sets of values may be imported from the Text::BibTeX module, using the import tags nameparts and joinmethods. For instance: use Text::BibTeX qw(:nameparts :joinmethods);
use Text::BibTeX::Name;
use Text::BibTeX::NameFormat;
The ‟name part” constants are used to specify surrounding text or formatting options on a per-part basis: for instance, you can supply the ‟pre-token” text, or the ‟abbreviate” flag, for a single part without affecting other parts. The ‟join methods” are two of the three formatting options that you can set for a part: you can control how to join the individual tokens of a name ("JR Smith", or "J R Smith", or "J~R Smith", and you can control how the final token of one part is joined to the next part ("la Roche" versus "la~Roche").
METHODSnew(PARTS, ABBREV_FIRST) Creates a new name format, with the two most common customizations: which parts to include (and in what order), and whether to abbreviate the first name. PARTS should be a string with at most four characters, one representing each part that you want to occur in a formatted name (defaults to "fvlj"). For example, "fvlj" means to format names in ‟first von last jr” order, while "vljf" denotes ‟von last jr first.” ABBREV_FIRST is just a boolean value: false to print out the first name in full, and true to abbreviate it with periods after each token and discretionary ties between tokens (defaults to false). All intra− and inter-token punctuation and spacing is independently controllable with the set_text and set_options methods, although these will rarely be necessary−−−sensible defaults are chosen for everything, based on the PARTS and ABBREV_FIRST values that you supply. See the description of bt_create_name_format() in bt_format_names for full details of the choices made. set_text (PART, PRE_PART, POST_PART, PRE_TOKEN, POST_TOKEN) Allows you to customize some or all of the surrounding text for a single name part. Every name part has four possible chunks of text that go around or within it: before/after the part as a whole, and before/after each token in the part. For instance, if you are abbreviating first names and wish to control the punctuation after each token in the first name, you would set the ‟post token” text: $format−>set_text ('first', undef, undef, undef, '');
would set the post-token text to the empty string, resulting in names like "J R Smith". (Normally, abbreviated first names will have a period after each token: "J. R. Smith".) Note that supplying undef for the other three values leaves them unchanged. See bt_format_names for full information on formatting names. set_options (PART, ABBREV, JOIN_TOKENS, JOIN_PART) Allows further customization of a name format: you can set the abbreviation flag and the two token-join methods. Alas, there is no mechanism for leaving a value unchanged; you must set everything with set_options. For example, let's say that just dropping periods from abbreviated tokens in the first name isn't enough; you really want to save space by jamming the abbreviated tokens together: "JR Smith" rather than "J R Smith" Assuming the two calls in the above example have been done, the following will finish the job: $format−>set_options (BTN_FIRST,
1, # keep same value for abbrev flag
BTJ_NOTHING, # jam tokens together
BTJ_SPACE); # space after final token of part
Note that we unfortunately had to know (and supply) the current values for the abbreviation flag and post-part join method, even though we were only setting the intra-part join method. apply (NAME) Once a name format has been created and customized to your heart's content, you can use it to format any number of names using the apply method. NAME must be a Text::BibTeX::Name object (i.e., a pre-split name); apply returns a string containing the parts of the name formatted according to the Text::BibTeX::NameFormat structure it is called on.
EXAMPLESAlthough the process of splitting and formatting names may sound complicated and convoluted from reading the above (along with Text::BibTeX::Name), it's actually quite simple. There are really only three steps to worry about: split the name (create a Text::BibTeX::Name object), create and customize the format (Text::BibTeX::NameFormat object), and apply the format to the name. The first step is covered in Text::BibTeX::Name; here's a brief example: $orig_name = 'Charles Louis Xavier Joseph de la Vall{\'e}e Poussin';
$name = Text::BibTeX::Name−>new($orig_name);
The various parts of the name can now be accessed through Text::BibTeX::Name methods; for instance $name−>part('von') returns the list ("de","la"). Creating the name format is equally simple: $format = Text::BibTeX::NameFormat−>new('vljf', 1);
creates a format that will print the name in ‟von last jr first” order, with the first name abbreviated. And for no extra charge, you get the right punctuation at the right place: a comma before any `jr' or `first' tokens, and periods after each `first' token. For instance, we can perform no further customization on this format, and apply it immediately to $name. There are in fact two ways to do this, depending on whether you prefer to think of it in terms of ‟Applying the format to a name” or ‟formatting a name”. The first is done with Text::BibTeX::NameFormat's apply method: $formatted_name = $format−>apply ($name);
while the second uses Text::BibTeX::Name's format method: $formatted_name = $name−>format ($format);
which is just a wrapper around Text::BibTeX::NameFormat::apply. In either case, the result with the example name and format shown is de~la Vall{\'e}e~Poussin, C.~L. X.~J.
Note the strategic insertion of TeX ‟ties” (non-breakable spaces) at sensitive spots in the name. (The exact rules for insertion of discretionary ties are given in bt_format_names.)
SEE ALSOText::BibTeX::Entry, Text::BibTeX::Name, bt_format_names.
AUTHORGreg Ward <gward@python.net>
COPYRIGHTCopyright (c) 1997−2000 by Gregory P. Ward. All rights reserved. This file is part of the Text::BibTeX library. This library is free software; you may redistribute it and/or modify it under the same terms as Perl itself. 0
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