зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
3.1 KiB
C
83 строки
3.1 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
/* mimetext.h --- definition of the MimeInlineText class (see mimei.h)
|
|
Created: Jamie Zawinski <jwz@netscape.com>, 15-May-96.
|
|
*/
|
|
|
|
#ifndef _MIMETEXT_H_
|
|
#define _MIMETEXT_H_
|
|
|
|
#include "mimeleaf.h"
|
|
|
|
/* The MimeInlineText class is the superclass of all handlers for the
|
|
MIME text/ content types (which convert various text formats to HTML,
|
|
in one form or another.)
|
|
|
|
It provides two services:
|
|
|
|
= if ROT13 decoding is desired, the text will be rotated before
|
|
the `parse_line' method it called;
|
|
|
|
= text will be converted from the message's charset to the "target"
|
|
charset before the `parse_line' method is called.
|
|
|
|
The contract with charset-conversion is that the converted data will
|
|
be such that one may interpret any octets (8-bit bytes) in the data
|
|
which are in the range of the ASCII characters (0-127) as ASCII
|
|
characters. It is explicitly legal, for example, to scan through
|
|
the string for "<" and replace it with "<", and to search for things
|
|
that look like URLs and to wrap them with interesting HTML tags.
|
|
|
|
The charset to which we convert will probably be UTF-8 (an encoding of
|
|
the Unicode character set, with the feature that all octets with the
|
|
high bit off have the same interpretations as ASCII.)
|
|
|
|
#### NOTE: if it turns out that we use JIS (ISO-2022-JP) as the target
|
|
encoding, then this is not quite true; it is safe to search for the
|
|
low ASCII values (under hex 0x40, octal 0100, which is '@') but it
|
|
is NOT safe to search for values higher than that -- they may be
|
|
being used as the subsequent bytes in a multi-byte escape sequence.
|
|
It's a nice coincidence that HTML's critical characters ("<", ">",
|
|
and "&") have values under 0x40...
|
|
*/
|
|
|
|
typedef struct MimeInlineTextClass MimeInlineTextClass;
|
|
typedef struct MimeInlineText MimeInlineText;
|
|
|
|
struct MimeInlineTextClass {
|
|
MimeLeafClass leaf;
|
|
int (*rot13_line) (MimeObject *obj, char *line, int32 length);
|
|
int (*convert_line_charset) (MimeObject *obj, char *line, int32 length);
|
|
};
|
|
|
|
extern MimeInlineTextClass mimeInlineTextClass;
|
|
|
|
struct MimeInlineText {
|
|
MimeLeaf leaf; /* superclass variables */
|
|
char *charset; /* The charset from the content-type of this
|
|
object, or the caller-specified overrides
|
|
or defaults.
|
|
*/
|
|
char *cbuffer; /* Buffer used for charset conversion. */
|
|
int32 cbuffer_size;
|
|
|
|
};
|
|
|
|
#endif /* _MIMETEXT_H_ */
|