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(**************************************************************************)
(* bibtex2html - A BibTeX to HTML translator *)
(* Copyright (C) 1997-2014 Jean-Christophe Filliâtre and Claude Marché *)
(* *)
(* 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). *)
(**************************************************************************)
(*s Output a BibTeX bibliography. *)
open Printf
open Bibtex
let link_fields = ref []
let add_link_field f = link_fields := f :: !link_fields
let is_link_field f = List.mem f !link_fields
let needs_output k = function
| None -> true
| Some s -> KeySet.mem k s
let url_re = Str.regexp "\\(ftp\\|http\\)://.*"
let is_url s = Str.string_match url_re s 0
let print_atom html ch = function
| Id s ->
if html & not (abbrev_is_implicit s) then
begin
Html.open_href ch ("#" ^ s);
output_string ch s;
Html.close_href ch
end
else
output_string ch s
| String s when html & is_url s ->
output_string ch "{";
Html.open_href ch s;
output_string ch s;
Html.close_href ch;
output_string ch "}"
| String s ->
output_string ch ("{"^s^"}")
let print_atom_list html ch = function
| [] -> ()
| a::l ->
print_atom html ch a;
List.iter
(fun a -> output_string ch " # "; print_atom html ch a)
l
let print_crossref html ch = function
| [String s] ->
output_string ch "{";
if html then Html.open_href ch ("#" ^ s);
output_string ch s;
if html then Html.close_href ch;
output_string ch "}"
| l ->
if not !Options.quiet then
eprintf "Warning: cross-references must be constant strings\n";
if !Options.warn_error then exit 2;
print_atom_list html ch l
let print_link_field ch = function
| [String s] ->
output_string ch "{";
Html.open_href ch s;
output_string ch s;
Html.close_href ch;
output_string ch "}"
| l ->
if not !Options.quiet then
eprintf "Warning: web links must be constant strings\n";
if !Options.warn_error then exit 2;
print_atom_list true ch l
let print_command remove rename html html_file ch keys = function
| Comment s ->
if html then output_string ch "<pre>\n";
output_string ch ("@comment{{" ^ s ^ "}}\n");
if html then output_string ch "</pre>\n";
output_string ch "\n"
| Preamble l ->
if html then output_string ch "<pre>\n";
output_string ch "@preamble{";
print_atom_list html ch l;
output_string ch "}\n";
if html then output_string ch "</pre>\n";
output_string ch "\n"
| Abbrev(s,l) ->
if needs_output s keys then
begin
if html then begin Html.open_anchor ch s; Html.close_anchor ch end;
if html then output_string ch "<pre>\n";
output_string ch ("@string{" ^ s ^ " = ");
print_atom_list html ch l;
output_string ch "}\n";
if html then output_string ch "</pre>\n";
output_string ch "\n"
end
| Entry (entry_type,key,fields) ->
if needs_output key keys then
begin
(*if html then Html.open_balise ch "p";*)
if html then begin Html.open_anchor ch key; Html.close_anchor ch end;
if html then output_string ch "<pre>\n";
output_string ch ("@" ^ entry_type ^ "{");
begin match html_file with
| Some f ->
Html.open_href ch (f ^ "#" ^ key);
output_string ch key;
Html.close_href ch
| None ->
output_string ch key
end;
List.iter
(fun (field,l) ->
if not (List.mem field remove) then
begin
let ofield =
try List.assoc field rename
with Not_found -> field
in
output_string ch (",\n " ^ ofield ^ " = ");
if html & field = "crossref" then
print_crossref html ch l
else if html & is_link_field field then
print_link_field ch l
else
print_atom_list html ch l
end)
fields;
output_string ch "\n}\n";
if html then output_string ch "</pre>\n";
(*if html then Html.close_balise ch "p";*)
output_string ch "\n"
end
(*s PHP output *)
open Printf
exception Bad_input_for_php of string
(* inspired from String.escaped *)
let add_backslashes s =
let n = ref 0 in
for i = 0 to String.length s - 1 do
n := !n +
(match String.unsafe_get s i with
| '\'' | '\\' -> 2
| _ -> 1)
done;
if !n = String.length s then s else begin
let s' = String.create !n in
n := 0;
for i = 0 to String.length s - 1 do
let c = String.unsafe_get s i in
begin match c with
| ('\'' | '\\') -> String.unsafe_set s' !n '\\'; incr n
| _ -> ()
end;
String.unsafe_set s' !n c; incr n
done;
s'
end
let php_print_atom ch = function
| Id s -> fprintf ch "\'%s\'" s
| String s ->
fprintf ch "'%s'" (add_backslashes s)
let php_print_atom_list ch = function
| [] -> ()
| [a] -> php_print_atom ch a
| a::l ->
php_print_atom ch a;
List.iter
(fun a ->
fprintf ch ".";
php_print_atom ch a)
l
let php_print_command index remove rename ch keys =
function
| Comment s ->
raise
(Bad_input_for_php "comments not supported, use option --no-comment")
(*
output_string ch "<pre>\n";
output_string ch ("@comment{{" ^ s ^ "}}\n");
output_string ch "</pre>\n";
output_string ch "\n"
*)
| Preamble l ->
raise (Bad_input_for_php "preamble not supported")
(*
output_string ch "<pre>\n";
output_string ch "@preamble{";
php_print_atom_list ch l;
output_string ch "}\n";
output_string ch "</pre>\n";
output_string ch "\n"
*)
| Abbrev(s,l) ->
raise (Bad_input_for_php "string not supported, use option --expand")
(*
if needs_output s keys then
begin
Html.open_anchor ch s;
Html.close_anchor ch;
output_string ch "<pre>\n";
output_string ch ("@string{" ^ s ^ " = ");
php_print_atom_list ch l;
output_string ch "}\n";
output_string ch "</pre>\n";
output_string ch "\n"
end
*)
| Entry (entry_type,key,fields) ->
if needs_output key keys then
begin
if index > 0 then fprintf ch ",\n\n";
fprintf ch "%-5d => Array (\n" index;
fprintf ch " \'entrytype\' => \'%s\',\n" entry_type;
fprintf ch " \'cite\' => \'%s\'" key;
List.iter
(fun (field,l) ->
if not (List.mem field remove) then
begin
let ofield =
try List.assoc field rename
with Not_found -> field
in
fprintf ch ",\n \'%s\' => " ofield;
php_print_atom_list ch l
end)
fields;
fprintf ch ")";
succ index
end
else index
let output_bib ?(remove=[]) ?(rename=[]) ?(php=false) ~html ?html_file
ch bib keys =
let _ =
Bibtex.fold
(fun entry i ->
if php then
php_print_command i remove rename ch keys entry
else
(print_command remove rename html html_file ch keys entry;
succ i))
bib
0
in ()
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