lyx_mirror/src/BiblioInfo.h
2019-08-07 13:00:29 +02:00

286 lines
11 KiB
C++

// -*- C++ -*-
/**
* \file BiblioInfo.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Angus Leeming
* \author Herbert Voß
* \author Richard Heck
* \author Julien Rioux
*
* Full author contact details are available in file CREDITS.
*/
#ifndef BIBLIOINFO_H
#define BIBLIOINFO_H
#include "support/docstring.h"
#include "BufferParams.h"
#include "Citation.h"
#include <map>
#include <set>
#include <vector>
namespace lyx {
class Buffer;
/// \param latex_str a LaTeX command, "cite", "Citep*", etc
CitationStyle citationStyleFromString(std::string const & latex_str,
BufferParams const &);
/// the other way round
std::string citationStyleToString(CitationStyle const &, bool const latex = false);
/// Class to represent information about a BibTeX or
/// bibliography entry.
/// This class basically wraps a std::map, and many of its
/// methods simply delegate to the corresponding methods of
/// std::map.
class BibTeXInfo {
public:
/// The keys are BibTeX fields (e.g., author, title, etc),
/// and the values are the associated field values.
typedef std::map<docstring, docstring>::const_iterator const_iterator;
///
typedef std::vector<BibTeXInfo const *> const BibTeXInfoList;
///
BibTeXInfo() : is_bibtex_(true), modifier_(0) {}
/// argument sets isBibTeX_, so should be false only if it's coming
/// from a bibliography environment
BibTeXInfo(bool ib) : is_bibtex_(ib), modifier_(0) {}
/// constructor that sets the entryType
BibTeXInfo(docstring const & key, docstring const & type);
/// \return an author or editor list (short form by default),
/// used for sorting.
/// This will be translated to the UI language if buf is null
/// otherwise, it will be translated to the buffer language.
docstring const getAuthorOrEditorList(Buffer const * buf = 0,
bool full = false, bool forceshort = false) const;
/// Same for a specific author role (editor, author etc.)
docstring const getAuthorList(Buffer const * buf, docstring const & author,
bool const full = false, bool const forceshort = false,
bool const allnames = false, bool const beginning = true) const;
///
docstring const getYear() const;
/// \return formatted BibTeX data suitable for framing.
/// \param vector of pointers to crossref/xdata information
docstring const & getInfo(BibTeXInfoList const xrefs,
Buffer const & buf, CiteItem const & ci) const;
/// \return formatted BibTeX data for a citation label
docstring const getLabel(BibTeXInfoList const xrefs,
Buffer const & buf, docstring const & format,
CiteItem const & ci, bool next = false, bool second = false) const;
///
const_iterator find(docstring const & f) const { return bimap_.find(f); }
///
const_iterator end() const { return bimap_.end(); }
/// \return value for field f
/// note that this will create an empty field if it does not exist
docstring & operator[](docstring const & f)
{ return bimap_[f]; }
/// \return value for field f
/// this one, since it is const, will simply return docstring() if
/// we don't have the field and will NOT create an empty field
docstring const & operator[](docstring const & field) const;
///
docstring const & operator[](std::string const & field) const;
///
docstring const & allData() const { return all_data_; }
///
void setAllData(docstring const & d) { all_data_ = d; }
///
void label(docstring const & d) { label_= d; }
///
void key(docstring const & d) { bib_key_= d; }
/// Record the number of occurences of the same key
/// (duplicates are allowed with qualified citation lists)
void numKey(int const i) { num_bib_key_ = i; }
///
docstring const & label() const { return label_; }
///
docstring const & key() const { return bib_key_; }
/// numerical key for citing this entry. currently used only
/// by XHTML output routines.
docstring citeNumber() const { return cite_number_; }
///
void setCiteNumber(docstring const & num) { cite_number_ = num; }
/// a,b,c, etc, for author-year. currently used only by XHTML
/// output routines.
char modifier() const { return modifier_; }
///
void setModifier(char c) { modifier_ = c; }
///
docstring entryType() const { return entry_type_; }
///
bool isBibTeX() const { return is_bibtex_; }
private:
/// like operator[], except, if the field is empty, it will attempt
/// to get the data from xref BibTeXInfo objects, which would normally
/// be the one referenced in the crossref or xdata field.
docstring getValueForKey(std::string const & key, Buffer const & buf,
CiteItem const & ci, BibTeXInfoList const xrefs, size_t maxsize = 4096) const;
/// replace %keys% in a format string with their values
/// called from getInfo()
/// format strings may contain:
/// %key%, which represents a key
/// {%key%[[format]]}, which prints format if key is non-empty
/// the latter may optionally contain an `else' clause as well:
/// {%key%[[if format]][[else format]]}
/// Material intended only for rich text (HTML) output should be
/// wrapped in "{!" and "!}". These markers are to be postprocessed
/// by processRichtext(); this step is left as a separate routine since
/// expandFormat() is recursive while postprocessing should be done
/// only once on the final string (just like convertLaTeXCommands).
/// a simple macro facility is also available. keys that look like
/// "%!key%" are substituted with their definition.
/// moreover, keys that look like "%_key%" are treated as translatable
/// so that things like "pp." and "vol." can be translated.
docstring expandFormat(docstring const & fmt,
BibTeXInfoList const xrefs, int & counter,
Buffer const & buf, CiteItem const & ci,
bool next = false, bool second = false) const;
/// true if from BibTeX; false if from bibliography environment
bool is_bibtex_;
/// the BibTeX key for this entry
docstring bib_key_;
/// Number of occurences of the same key
int num_bib_key_;
/// the label that will appear in citations
/// this is easily set from bibliography environments, but has
/// to be calculated for entries we get from BibTeX
docstring label_;
/// a single string containing all BibTeX data associated with this key
docstring all_data_;
/// the BibTeX entry type (article, book, incollection, ...)
docstring entry_type_;
/// a cache for getInfo()
mutable docstring info_;
/// a cache for getInfo(richtext = true)
mutable docstring info_richtext_;
///
docstring cite_number_;
///
char modifier_;
/// our map: <field, value>
std::map <docstring, docstring> bimap_;
};
/// Class to represent a collection of bibliographical data, whether
/// from BibTeX or from bibliography environments.
class BiblioInfo {
public:
///
typedef std::vector<BibTeXInfo const *> BibTeXInfoList;
/// bibliography key --> data for that key
typedef std::map<docstring, BibTeXInfo>::const_iterator const_iterator;
/// Get a vector with all external data (crossref, xdata)
std::vector<docstring> const getXRefs(BibTeXInfo const & data,
bool const nested = false) const;
/// \return a sorted vector of bibliography keys
std::vector<docstring> const getKeys() const;
/// \return a sorted vector of present BibTeX fields
std::vector<docstring> const getFields() const;
/// \return a sorted vector of BibTeX entry types in use
std::vector<docstring> const getEntries() const;
/// \return author or editor list (abbreviated form by default)
docstring const getAuthorOrEditorList(docstring const & key, Buffer const & buf) const;
/// \return the year from the bibtex data record for \param key
/// if \param use_modifier is true, then we will also append any
/// modifier for this entry (e.g., 1998b).
/// If no legacy year field is present, check for date (common in
/// biblatex) and extract the year from there.
/// Note further that this will get the year from the crossref or xdata
/// if it's not present in the record itself.
docstring const getYear(docstring const & key,
bool use_modifier = false) const;
/// \return the year from the bibtex data record for \param key
/// if \param use_modifier is true, then we will also append any
/// modifier for this entry (e.g., 1998b).
/// If no legacy year field is present, check for date (common in
/// biblatex) and extract the year from there.
/// Note further that this will get the year from the crossref or xdata
/// if it's not present in the record itself.
/// If no year is found, \return "No year" translated to the buffer
/// language.
docstring const getYear(docstring const & key, Buffer const & buf,
bool use_modifier = false) const;
///
docstring const getCiteNumber(docstring const & key) const;
/// \return formatted BibTeX data associated with a given key.
/// Empty if no info exists.
/// Note that this will retrieve data from the crossref or xdata as needed.
/// \param ci contains further context information, such as if it should
/// output any richtext tags marked in the citation format and escape < and >
/// elsewhere, and the general output context.
docstring const getInfo(docstring const & key, Buffer const & buf,
CiteItem const & ci) const;
/// \return formatted BibTeX data for citation labels.
/// Citation labels can have more than one key.
docstring const getLabel(std::vector<docstring> keys, Buffer const & buf,
std::string const & style, CiteItem const & ci) const;
/// Is this a reference from a bibtex database
/// or from a bibliography environment?
bool isBibtex(docstring const & key) const;
/// A vector holding a pair of lyx cite command and the respective
/// output for a given (list of) key(s).
typedef std::vector<std::pair<docstring,docstring>> CiteStringMap;
/// Translates the available citation styles into strings for a given
/// list of keys, using either numerical or author-year style depending
/// upon the active engine. The function returns a CiteStringMap with the first
/// element being the lyx cite command, the second being the formatted
/// citation reference.
CiteStringMap const getCiteStrings(
std::vector<docstring> const & keys,
std::vector<CitationStyle> const & styles, Buffer const & buf,
CiteItem const & ci) const;
/// A list of BibTeX keys cited in the current document, sorted by
/// the last name of the author.
/// Make sure you have called collectCitedEntries() before you try to
/// use this. You should probably call it just before you use this.
std::vector<docstring> const & citedEntries() const
{ return cited_entries_; }
///
void makeCitationLabels(Buffer const & buf);
///
const_iterator begin() const { return bimap_.begin(); }
///
void clear() { bimap_.clear(); }
///
bool empty() const { return bimap_.empty(); }
///
const_iterator end() const { return bimap_.end(); }
///
const_iterator find(docstring const & f) const { return bimap_.find(f); }
///
void mergeBiblioInfo(BiblioInfo const & info);
///
BibTeXInfo & operator[](docstring const & f) { return bimap_[f]; }
///
void addFieldName(docstring const & f) { field_names_.insert(f); }
///
void addEntryType(docstring const & f) { entry_types_.insert(f); }
private:
/// Collects the cited entries from buf.
void collectCitedEntries(Buffer const & buf);
///
std::set<docstring> field_names_;
///
std::set<docstring> entry_types_;
/// our map: keys --> BibTeXInfo
std::map<docstring, BibTeXInfo> bimap_;
/// a possibly sorted list of entries cited in our Buffer.
/// do not try to make this a vector<BibTeXInfo *> or anything of
/// the sort, because reloads will invalidate those pointers.
std::vector<docstring> cited_entries_;
};
} // namespace lyx
#endif // BIBLIOINFO_H