1// -*- C++ -*- 2/* Copyright (C) 1989, 1990, 1991, 1992, 2005 Free Software Foundation, Inc. 3 Written by James Clark (jjc@jclark.com) 4 5This file is part of groff. 6 7groff is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 2, or (at your option) any later 10version. 11 12groff is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License along 18with groff; see the file COPYING. If not, write to the Free Software 19Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 20 21// declarations to avoid friend name injection problems 22int compare_reference(const reference &, const reference &); 23int same_reference(const reference &, const reference &); 24int same_year(const reference &, const reference &); 25int same_date(const reference &, const reference &); 26int same_author_last_name(const reference &, const reference &, int); 27int same_author_name(const reference &, const reference &, int); 28 29struct label_info; 30 31enum label_type { NORMAL_LABEL, SHORT_LABEL }; 32const int N_LABEL_TYPES = 2; 33 34struct substring_position { 35 int start; 36 int length; 37 substring_position() : start(-1) { } 38}; 39 40class int_set { 41 string v; 42public: 43 int_set() { } 44 void set(int i); 45 int get(int i) const; 46}; 47 48class reference { 49private: 50 unsigned h; 51 reference_id rid; 52 int merged; 53 string sort_key; 54 int no; 55 string *field; 56 int nfields; 57 unsigned char field_index[256]; 58 enum { NULL_FIELD_INDEX = 255 }; 59 string label; 60 substring_position separator_pos; 61 string short_label; 62 substring_position short_separator_pos; 63 label_info *label_ptr; 64 string authors; 65 int computed_authors; 66 int last_needed_author; 67 int nauthors; 68 int_set last_name_unambiguous; 69 70 int contains_field(char) const; 71 void insert_field(unsigned char, string &s); 72 void delete_field(unsigned char); 73 void set_date(string &); 74 const char *get_sort_field(int i, int si, int ssi, const char **endp) const; 75 int merge_labels_by_parts(reference **, int, label_type, string &); 76 int merge_labels_by_number(reference **, int, label_type, string &); 77public: 78 reference(const char * = 0, int = -1, reference_id * = 0); 79 ~reference(); 80 void output(FILE *); 81 void print_sort_key_comment(FILE *); 82 void set_number(int); 83 int get_number() const { return no; } 84 unsigned hash() const { return h; } 85 const string &get_label(label_type type) const; 86 const substring_position &get_separator_pos(label_type) const; 87 int is_merged() const { return merged; } 88 void compute_sort_key(); 89 void compute_hash_code(); 90 void pre_compute_label(); 91 void compute_label(); 92 void immediate_compute_label(); 93 int classify(); 94 void merge(reference &); 95 int merge_labels(reference **, int, label_type, string &); 96 int get_nauthors() const; 97 void need_author(int); 98 void set_last_name_unambiguous(int); 99 void sortify_authors(int, string &) const; 100 void canonicalize_authors(string &) const; 101 void sortify_field(unsigned char, int, string &) const; 102 const char *get_author(int, const char **) const; 103 const char *get_author_last_name(int, const char **) const; 104 const char *get_date(const char **) const; 105 const char *get_year(const char **) const; 106 const char *get_field(unsigned char, const char **) const; 107 const label_info *get_label_ptr() const { return label_ptr; } 108 const char *get_authors(const char **) const; 109 // for sorting 110 friend int compare_reference(const reference &r1, const reference &r2); 111 // for merging 112 friend int same_reference(const reference &, const reference &); 113 friend int same_year(const reference &, const reference &); 114 friend int same_date(const reference &, const reference &); 115 friend int same_author_last_name(const reference &, const reference &, int); 116 friend int same_author_name(const reference &, const reference &, int); 117}; 118 119const char *find_year(const char *, const char *, const char **); 120const char *find_last_name(const char *, const char *, const char **); 121 122const char *nth_field(int i, const char *start, const char **endp); 123 124void capitalize(const char *ptr, const char *end, string &result); 125void reverse_name(const char *ptr, const char *end, string &result); 126void uppercase(const char *ptr, const char *end, string &result); 127void lowercase(const char *ptr, const char *end, string &result); 128void abbreviate_name(const char *ptr, const char *end, string &result); 129