Biber::Utils - Online Linux Manual PageSection : 3
Updated : 2022-01-31
Source : perl v5.34.0
Note : User Contributed Perl Documentation
NAMEBiber::Utils − Various utility subs used in Biber
EXPORTAll functions are exported by default.
FUNCTIONS
glob_data_file​ Expands a data file glob to a list of filenames
slurp_switchr​ Use different read encoding/slurp interfaces for Windows due to its ​ horrible legacy codepage system
slurp_switchw​ Use different write encoding/slurp interfaces for Windows due to its ​ horrible legacy codepage system
locate_data_file​ Searches for a data file by ​ ​ The exact path if the filename is absolute ​ In the input_directory, if defined ​ In the output_directory, if defined ​ Relative to the current directory ​ In the same directory as the control file ​ Using kpsewhich, if available
​ Check existence of NFC/NFD file variants and return correct one. ​ Account for windows file encodings
check_empty​ Wrapper around empty check to deal with Win32 Unicode filenames
check_exists​ Wrapper around exists check to deal with Win32 Unicode filenames
biber_warn​ Wrapper around various warnings bits and pieces. ​ Add warning to the list of .bbl warnings and the master list of warnings
biber_error​ Wrapper around error logging ​ Forces an exit.
makenamesidGiven a Biber::Names object, return an underscore normalised concatenation of all of the full name strings.
makenameidGiven a Biber::Name object, return an underscore normalised concatenation of the full name strings.
latex_recode_output​ Tries to convert UTF−8 to TeX macros in passed string
strip_noinit​ Removes elements which are not to be considered during initials generation ​ in names
strip_nosort​ Removes elements which are not to be used in sorting a name from a string
strip_nonamestring​ Removes elements which are not to be used in certain name−related operations like: ​ ​ * fullhash generation ​ * uniquename generation ​ ​ from a name
normalise_string_labelRemove some things from a string for label generation. Don't strip \p{Dash} as this is needed to process compound names or label generation.
normalise_string_sortRemoves LaTeX macros, and all punctuation, symbols, separators as well as leading and trailing whitespace for sorting strings. Control chars don't need to be stripped as they are completely ignorable in DUCET
normalise_string_bblxmlSome string normalisation for bblxml output
normalise_stringRemoves LaTeX macros, and all punctuation, symbols, separators and control characters, as well as leading and trailing whitespace for sorting strings. Only decodes LaTeX character macros into Unicode if output is UTF−8
normalise_string_common​ Common bit for normalisation
normalise_string_hash​ Normalise strings used for hashes. We collapse LaTeX macros into a vestige ​ so that hashes are unique between things like: ​ ​ Smith ​ {\v S}mith ​ ​ we replace macros like this to preserve their vestiges: ​ ​ \v S −> v: ​ \" −> 34:
normalise_string_underscore​ Like normalise_string, but also substitutes ~ and whitespace with underscore.
escape_label​ Escapes a few special character which might be used in labels
unescape_label​ Unscapes a few special character which might be used in label but which need ​ sorting without escapes
reduce_arrayreduce_array(\@a, \@b) returns all elements in @a that are not in @b
remove_outer​ Remove surrounding curly brackets: ​ '{string}' −> 'string' ​ but not ​ '{string} {string}' −> 'string} {string' ​ ​ Return (boolean if stripped, string)
has_outer​ Return (boolean if surrounded in braces
add_outer​ Add surrounding curly brackets: ​ 'string' −> '{string}'
ucinit​ upper case of initial letters in a string
is_undef​ Checks for undefness of arbitrary things, including ​ composite method chain calls which don't reliably work ​ with() (see perldoc for defined()) ​ This works because we are just testing the value passed ​ to this sub. So, for example, this is randomly unreliable ​ even if the resulting value of the arg to defined() is "undef": ​ ​ defined($thing−>method($arg)−>method) ​ ​ whereas: ​ ​ is_undef($thing−>method($arg)−>method) ​ ​ works since we only test the return value of all the methods ​ with()
is_def​ Checks for definedness in the same way as is_undef()
is_undef_or_null​ Checks for undef or nullness (see is_undef() above)
is_def_and_notnull​ Checks for def and unnullness (see is_undef() above)
is_def_and_null​ Checks for def and nullness (see is_undef() above)
is_null​ Checks for nullness
is_notnull​ Checks for notnullness
is_notnull_scalar​ Checks for notnullness of a scalar
is_notnull_array​ Checks for notnullness of an array (passed by ref)
is_notnull_hash​ Checks for notnullness of an hash (passed by ref)
is_notnull_object​ Checks for notnullness of an object (passed by ref)
stringify_hash​ Turns a hash into a string of keys and values
normalise_utf8​ Normalise any UTF−8 encoding string immediately to exactly what we want ​ We want the strict perl utf8 "UTF−8"
inits​ We turn the initials into an array so we can be flexible with them later ​ The tie here is used only so we know what to split on. We don't want to make ​ any typesetting decisions in Biber, like what to use to join initials so on ​ output to the .bbl, we only use BibLaTeX macros.
join_name​ Replace all join typsetting elements in a name part (space, ties) with BibLaTeX macros ​ so that typesetting decisions are made in BibLaTeX, not hard−coded in Biber
filter_entry_options​ Process any per_entry option transformations which are necessary on output
imatch​ Do an interpolating (neg)match using a match RE and a string passed in as variables ​ Using /g on matches so that $1,$2 etc. can be populated from repeated matches of ​ same capture group as well as different groups
ireplace​ Do an interpolating match/replace using a match RE, replacement RE ​ and string passed in as variables
validate_biber_xml​ Validate a biber/biblatex XML metadata file against an RNG XML schema
map_boolean​ Convert booleans between strings and numbers. Because standard XML "boolean" ​ datatype considers "true" and "1" the same etc.
process_entry_options​ Set per−entry options
merge_entry_options​ Merge entry options, dealing with conflicts
expand_option_input​ Expand options such as meta−options coming from biblatex
parse_date_range​ Parse of ISO8601 date range
parse_date_unspecified​ Parse of ISO8601−2:2016 4.3 unspecified format into date range ​ Returns range plus specification of granularity of unspecified
parse_date_start​ Convenience wrapper
parse_date_end​ Convenience wrapper
parse_date​ Parse of EDTF dates
date_monthday​ Force month/day to ISO8601−2:2016 format with leading zero
biber_decode_utf8​ Perform NFD form conversion as well as UTF−8 conversion. Used to normalize ​ bibtex input as the T::B interface doesn't allow a neat whole file slurping.
out​ Output to target. Outputs NFC UTF−8 if output is UTF−8
process_comment​ Fix up some problems with comments after being processed by btparse
locale2bcp47​ Map babel/polyglossia language options to a sensible CLDR (bcp47) locale default ​ Return input string if there is no mapping
bcp472locale​ Map CLDR (bcp47) locale to a babel/polyglossia locale ​ Return input string if there is no mapping
rangelen​ Calculate the length of a range field ​ Range fields are an array ref of two−element array refs [range_start, range_end] ​ range_end can be be empty for open−ended range or undef ​ Deals with Unicode and ASCII roman numerals via the magic of Unicode NFKD form ​ ​ m−n −> [m, n] ​ m −> [m, undef] ​ m− −> [m, ''] ​ −n −> ['', n] ​ − −> ['', undef]
match_indices​ Return array ref of array refs of matches and start indices of matches ​ for provided array of compiled regexps into string
parse_range​ Parses a range of values into a two−value array ref. ​ Ranges with no starting value default to "1" ​ Ranges can be open−ended and it's up to surrounding code to interpret this ​ Ranges can be single figures which is shorthand for 1−x
strip_annotation​ Removes annotation marker from a field name
parse_range_alt​ Parses a range of values into a two−value array ref. ​ Either start or end can be undef and it's up to surrounding code to interpret this
maploopreplace​ Replace loop markers with values.
get_transliterator​ Get a ref to a transliterator for the given from/to ​ We are abstracting this in this way because it is not clear what the future ​ of the transliteration library is. We want to be able to switch.
call_transliterator​ Run a transliterator on passed text. Hides call semantics of transliterator ​ so we can switch engine in the future.
AUTHORPhilip Kime <philip at kime.org.uk>
BUGSPlease report any bugs or feature requests on our Github tracker at <https://github.com/plk/biber/issues>.
COPYRIGHT & LICENSECopyright 2012−2022 Philip Kime, all rights reserved. This module is free software. You can redistribute it and/or modify it under the terms of the Artistic License 2.0. This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. 0
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