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+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#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 "&lt;", 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_t length);
+ int (*convert_line_charset) (MimeObject *obj, char *line, int32_t length);
+ int (*initialize_charset) (MimeObject *obj);
+};
+
+extern MimeInlineTextClass mimeInlineTextClass;
+
+#define DAM_MAX_BUFFER_SIZE 8*1024
+#define DAM_MAX_LINES 1024
+
+struct MimeInlineText {
+ MimeLeaf leaf; /* superclass variables */
+ char *charset; /* The charset from the content-type of this
+ object, or the caller-specified overrides
+ or defaults. */
+ bool charsetOverridable;
+ bool needUpdateMsgWinCharset;
+ char *cbuffer; /* Buffer used for charset conversion. */
+ int32_t cbuffer_size;
+
+ nsCOMPtr<nsIUnicodeDecoder> inputDecoder;
+ nsCOMPtr<nsIUnicodeEncoder> utf8Encoder;
+
+ bool inputAutodetect;
+ bool initializeCharset;
+ int32_t lastLineInDam;
+ int32_t curDamOffset;
+ char *lineDamBuffer;
+ char **lineDamPtrs;
+};
+
+#define MimeInlineTextClassInitializer(ITYPE,CSUPER) \
+ { MimeLeafClassInitializer(ITYPE,CSUPER) }
+
+#endif /* _MIMETEXT_H_ */