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|
(***************************************************************************)
(* HLins: insert http-links into HTML documents. *)
(* See http://www.lri.fr/~treinen/hlins *)
(* *)
(* Copyright (C) 1999-2024 Ralf Treinen <treinen@irif.fr> *)
(* *)
(* This program 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 of the License, or (at *)
(* your option) any later version. *)
(* *)
(* This program 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, write to the Free Software *)
(* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *)
(* USA *)
(* *)
(***************************************************************************)
(*
HLins: insert http-links into HTML documents.
See http://www.lri.fr/~treinen/hlins
Copyright (C) 1999 Ralf Treinen <treinen@lri.fr>
This program 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 of the License, or
(at your option) any later version.
This program 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
{
open Lexing;;
open Buffer;;
(* translates an html character representation "&#nnn;" to the
corresponding 8-bit char.
*)
let special_to_char s = Char.chr (int_of_string (String.sub s 2 3))
;;
type token =
CHAR of char
| VERB of string;;
let b = create 1024;;
}
let space = [' ''\n''\t''\r']
rule next_html = parse
| "À" { CHAR '' }
| "Á" { CHAR '' }
| "Â" { CHAR '' }
| "Ã" { CHAR '' }
| "Ä" { CHAR '' }
| "Å" { CHAR '' }
| "Æ" { CHAR '' }
| "È" { CHAR '' }
| "É" { CHAR '' }
| "Ê" { CHAR '' }
| "Ë" { CHAR '' }
| "Ì" { CHAR '' }
| "Í" { CHAR '' }
| "Î" { CHAR '' }
| "Ï" { CHAR '' }
| "Ð" { CHAR '' }
| "Ñ" { CHAR '' }
| "Ò" { CHAR '' }
| "Ó" { CHAR '' }
| "Ô" { CHAR '' }
| "Õ" { CHAR '' }
| "Ö" { CHAR '' }
| "Ø" { CHAR '' }
| "Ù" { CHAR '' }
| "Ú" { CHAR '' }
| "Û" { CHAR '' }
| "Ü" { CHAR '' }
| "Ý" { CHAR '' }
| "Þ" { CHAR '' }
| "ß" { CHAR '' }
| "à" { CHAR '' }
| "á" { CHAR '' }
| "â" { CHAR '' }
| "ã" { CHAR '' }
| "ä" { CHAR '' }
| "å" { CHAR '' }
| "æ" { CHAR '' }
| "&ccdil;" { CHAR '' }
| "è" { CHAR '' }
| "é" { CHAR '' }
| "ê" { CHAR '' }
| "ë" { CHAR '' }
| "ì" { CHAR '' }
| "í" { CHAR '' }
| "î" { CHAR '' }
| "ï" { CHAR '' }
| "ð" { CHAR '' }
| "ñ" { CHAR '' }
| "ò" { CHAR '' }
| "ó" { CHAR '' }
| "ô" { CHAR '' }
| "õ" { CHAR '' }
| "ù" { CHAR '' }
| "ú" { CHAR '' }
| "û" { CHAR '' }
| "ü" { CHAR '' }
| "ý" { CHAR '' }
| "þ" { CHAR '' }
(* special characters between 192 and 255 *)
| "&#" ( "19"['2'-'9'] | '2'['0'-'4']['0'-'9'] | "25"['0'-'5'] ) ";"
{ CHAR (special_to_char (lexeme lexbuf)) }
| '<'('H'|'h')('E'|'e')('A'|'a')('D'|'d')'>'
{ add_string b (lexeme lexbuf); skip_head lexbuf }
| '<'('C'|'c')('O'|'o')('D'|'d')('E'|'e')'>'
{ add_string b (lexeme lexbuf); skip_code lexbuf }
| '<'('S'|'s')('A'|'a')('M'|'m')('P'|'p')'>'
{ add_string b (lexeme lexbuf); skip_samp lexbuf }
| '<'('K'|'k')('B'|'b')('D'|'d')'>'
{ add_string b (lexeme lexbuf); skip_kbd lexbuf }
| '<'('D'|'d')('I'|'i')('V'|'v') space+ "nohlins>"
{ add_string b (lexeme lexbuf); skip_div lexbuf }
| '<'('A'|'a') space+ ([^'>']*space)?
('H'|'h')('R'|'r')('E'|'e')('F'|'f') '=' [^'>']* '>'
{ add_string b (lexeme lexbuf); skip_a lexbuf }
| '<' [^'>']* '>' { VERB(lexeme lexbuf)}
| eof { raise End_of_file }
| _ { CHAR(lexeme_char lexbuf 0)}
and skip_head = parse
| "</"('H'|'h')('E'|'e')('A'|'a')('D'|'d')'>'
{ add_string b (lexeme lexbuf);
let c = contents b in reset b; VERB(c)}
| _ { add_char b (lexeme_char lexbuf 0); skip_head lexbuf }
and skip_code = parse
| "</"('C'|'c')('O'|'o')('D'|'d')('E'|'e')'>'
{ add_string b (lexeme lexbuf);
let c = contents b in reset b; VERB(c) }
| _ { add_char b (lexeme_char lexbuf 0); skip_code lexbuf }
and skip_samp = parse
| "</"('S'|'s')('A'|'a')('M'|'m')('P'|'p')'>'
{ add_string b (lexeme lexbuf);
let c = contents b in reset b; VERB(c) }
| _ { add_char b (lexeme_char lexbuf 0); skip_samp lexbuf }
and skip_kbd = parse
| "</"('K'|'k')('B'|'b')('D'|'d')'>'
{ add_string b (lexeme lexbuf);
let c = contents b in reset b; VERB(c) }
| _ { add_char b (lexeme_char lexbuf 0); skip_kbd lexbuf }
and skip_pre = parse
| "</"('P'|'p')('R'|'r')('E'|'e')'>'
{ add_string b (lexeme lexbuf);
let c = contents b in reset b; VERB(c) }
| _ { add_char b (lexeme_char lexbuf 0); skip_pre lexbuf }
and skip_div = parse
| "</"('D'|'d')('I'|'i')('V'|'v')'>'
{ add_string b (lexeme lexbuf);
let c = contents b in reset b; VERB(c) }
| _ { add_char b (lexeme_char lexbuf 0); skip_div lexbuf }
and skip_a = parse
| "</"('A'|'a')'>'
{ add_string b (lexeme lexbuf);
let c = contents b in reset b; VERB(c) }
| _ { add_char b (lexeme_char lexbuf 0); skip_a lexbuf }
|
