1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160
|
(*
* bibtex2html - A BibTeX to HTML translator
* Copyright (C) 1997-2000 Jean-Christophe Fillitre and Claude March
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation.
*
* This software 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 version 2 for more details
* (enclosed in the file GPL).
*)
(*i $Id: expand.ml,v 1.9 2001/02/21 09:51:53 filliatr Exp $ i*)
(*s Expansion of abbreviations in BibTeX databases. *)
open Format
open Bibtex
type fields = (string * string) list
type entry = entry_type * key * fields
let abbrev_table = Hashtbl.create 97
let add_abbrev a s = Hashtbl.add abbrev_table a s
let find_abbrev s = Hashtbl.find abbrev_table s
let assoc_months =
[ "JAN", "January" ;
"FEB", "February" ;
"MAR", "March" ;
"APR", "April" ;
"MAY", "May" ;
"JUN", "June" ;
"JUL", "July" ;
"AUG", "August" ;
"SEP", "September" ;
"OCT", "October" ;
"NOV", "November" ;
"DEC", "December" ]
let rec expand_list = function
| [] ->
""
| (Id s) :: rem ->
(try find_abbrev s with Not_found -> s) ^ (expand_list rem)
| (String s) :: rem ->
s ^ (expand_list rem)
let rec expand_fields = function
| [] ->
[]
| ("MONTH" as n,l) :: rem ->
let s = expand_list l in
(n,try List.assoc (String.uppercase s) assoc_months
with Not_found -> s)
:: (expand_fields rem)
| (n,l) :: rem ->
(n,expand_list l) :: (expand_fields rem)
let macros_in_preamble s =
try
let lb = Lexing.from_string s in Latexscan.read_macros lb
with _ -> ()
let rec expand biblio =
Bibtex.fold
(fun command accu ->
match command with
| Abbrev (a,l) ->
let s = expand_list l in
add_abbrev a s;
accu
| Entry (t,k,f) ->
(t,k,expand_fields f) :: accu
| Preamble s ->
macros_in_preamble s;
accu
| Comment _ -> accu)
biblio
[]
(*s Sort BibTeX entries by decreasing dates. *)
let int_of_month = function
| "January" -> 0
| "February" -> 1
| "March" -> 2
| "April" -> 3
| "May" -> 4
| "June" -> 5
| "July" -> 6
| "August" -> 7
| "September" -> 8
| "October" -> 9
| "November" -> 10
| "December" -> 11
| _ -> 0 (* TODO *)
type date = { year : int; month : int }
let dummy_date = { year = 0; month = 0 }
let extract_year k f =
try
int_of_string (List.assoc "YEAR" f)
with Failure "int_of_string" ->
if not !Options.quiet then
eprintf "Warning: incorrect year in entry %s\n" k;
0
let extract_month k f =
try
int_of_month (List.assoc "MONTH" f)
with
| Failure "int_of_string" ->
if not !Options.quiet then
eprintf "Warning: incorrect month in entry %s\n" k;
0
| Not_found -> 0
let rec find_entry k = function
| [] -> raise Not_found
| (_,k',_) as e :: r -> if k = k' then e else find_entry k r
let rec extract_date el (_,k,f) =
try
let y = extract_year k f in
let m = extract_month k f in
{ year = y; month = m }
with Not_found ->
try extract_date el (find_entry (List.assoc "CROSSREF" f) el)
with Not_found -> dummy_date
let date_order el e1 e2 =
let d1 = extract_date el e1 in
let d2 = extract_date el e2 in
(d1.year < d2.year) or (d1.year == d2.year & d1.month < d2.month)
(*s Access to the fields. *)
let get_field (_,_,f) s = List.assoc (String.uppercase s) f
let get_uppercase_field (_,_,f) s = List.assoc s f
let get_title e = get_uppercase_field e "TITLE"
let get_year e = get_uppercase_field e "YEAR"
let get_month e = get_uppercase_field e "MONTH"
let get_author e = get_uppercase_field e "AUTHOR"
|