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-rw-r--r--src/preproc/refer/ref.h127
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diff --git a/src/preproc/refer/ref.h b/src/preproc/refer/ref.h
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+// -*- C++ -*-
+/* Copyright (C) 1989-2020 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 3 of the License, 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+// declarations to avoid friend name injection problems
+int compare_reference(const reference &, const reference &);
+int same_reference(const reference &, const reference &);
+int same_year(const reference &, const reference &);
+int same_date(const reference &, const reference &);
+int same_author_last_name(const reference &, const reference &, int);
+int same_author_name(const reference &, const reference &, int);
+
+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);