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// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
groff 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. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with groff; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
struct label_info;
enum label_type { NORMAL_LABEL, SHORT_LABEL };
const int N_LABEL_TYPES = 2;
struct substring_position {
int start;
int length;
substring_position() : start(-1) { }
};
class int_set {
string v;
public:
int_set() { }
void set(int i);
int get(int i) const;
};
class reference {
private:
unsigned h;
reference_id rid;
int merged;
string sort_key;
int no;
string *field;
int nfields;
unsigned char field_index[256];
enum { NULL_FIELD_INDEX = 255 };
string label;
substring_position separator_pos;
string short_label;
substring_position short_separator_pos;
label_info *label_ptr;
string authors;
int computed_authors;
int last_needed_author;
int nauthors;
int_set last_name_unambiguous;
int contains_field(char) const;
void insert_field(unsigned char, string &s);
void delete_field(unsigned char);
void set_date(string &);
const char *get_sort_field(int i, int si, int ssi, const char **endp) const;
int merge_labels_by_parts(reference **, int, label_type, string &);
int merge_labels_by_number(reference **, int, label_type, string &);
public:
reference(const char * = 0, int = -1, reference_id * = 0);
~reference();
void output(FILE *);
void print_sort_key_comment(FILE *);
void set_number(int);
int get_number() const { return no; }
unsigned hash() const { return h; }
const string &get_label(label_type type) const;
const substring_position &get_separator_pos(label_type) const;
int is_merged() const { return merged; }
void compute_sort_key();
void compute_hash_code();
void pre_compute_label();
void compute_label();
void immediate_compute_label();
int classify();
void merge(reference &);
int merge_labels(reference **, int, label_type, string &);
int get_nauthors() const;
void need_author(int);
void set_last_name_unambiguous(int);
void sortify_authors(int, string &) const;
void canonicalize_authors(string &) const;
void sortify_field(unsigned char, int, string &) const;
const char *get_author(int, const char **) const;
const char *get_author_last_name(int, const char **) const;
const char *get_date(const char **) const;
const char *get_year(const char **) const;
const char *get_field(unsigned char, const char **) const;
const label_info *get_label_ptr() const { return label_ptr; }
const char *get_authors(const char **) const;
// for sorting
friend int compare_reference(const reference &r1, const reference &r2);
// for merging
friend int same_reference(const reference &, const reference &);
friend int same_year(const reference &, const reference &);
friend int same_date(const reference &, const reference &);
friend int same_author_last_name(const reference &, const reference &, int);
friend int same_author_name(const reference &, const reference &, int);
};
const char *find_year(const char *, const char *, const char **);
const char *find_last_name(const char *, const char *, const char **);
const char *nth_field(int i, const char *start, const char **endp);
void capitalize(const char *ptr, const char *end, string &result);
void reverse_name(const char *ptr, const char *end, string &result);
void uppercase(const char *ptr, const char *end, string &result);
void lowercase(const char *ptr, const char *end, string &result);
void abbreviate_name(const char *ptr, const char *end, string &result);
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