mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-14 03:30:17 +01:00
333 lines
13 KiB
C++
333 lines
13 KiB
C++
/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is the Mozilla Text to HTML converter code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Ben Bucksch <http://www.bucksch.org>.
|
|
* Portions created by the Initial Developer are Copyright (C) 1999, 2000
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/**
|
|
Description: Currently only functions to enhance plain text with HTML tags. See mozITXTToHTMLConv. Stream conversion is defunct.
|
|
*/
|
|
|
|
#ifndef _mozTXTToHTMLConv_h__
|
|
#define _mozTXTToHTMLConv_h__
|
|
|
|
#include "mozITXTToHTMLConv.h"
|
|
#include "nsIIOService.h"
|
|
#include "nsString.h"
|
|
#include "nsTimer.h"
|
|
#include "nsCOMPtr.h"
|
|
|
|
|
|
class mozTXTToHTMLConv : public mozITXTToHTMLConv
|
|
{
|
|
|
|
|
|
//////////////////////////////////////////////////////////
|
|
public:
|
|
//////////////////////////////////////////////////////////
|
|
|
|
mozTXTToHTMLConv();
|
|
virtual ~mozTXTToHTMLConv();
|
|
NS_DECL_ISUPPORTS
|
|
|
|
// XXX Is this really needed? This isn't an interface.
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(MOZITXTTOHTMLCONV_IID)
|
|
|
|
NS_DECL_MOZITXTTOHTMLCONV
|
|
NS_DECL_NSIREQUESTOBSERVER
|
|
NS_DECL_NSISTREAMLISTENER
|
|
NS_DECL_NSISTREAMCONVERTER
|
|
|
|
/**
|
|
see mozITXTToHTMLConv::ScanTXT
|
|
*/
|
|
void ScanTXT(const PRUnichar * aInString, PRInt32 aInStringLength, PRUint32 whattodo, nsString& aOutString);
|
|
|
|
/**
|
|
see mozITXTToHTMLConv::ScanHTML. We will modify aInString potentially...
|
|
*/
|
|
void ScanHTML(nsString& aInString, PRUint32 whattodo, nsString &aOutString);
|
|
|
|
/**
|
|
see mozITXTToHTMLConv::CiteLevelTXT
|
|
*/
|
|
PRInt32 CiteLevelTXT(const PRUnichar * line,PRUint32& logLineStart);
|
|
|
|
|
|
// Timing!
|
|
MOZ_TIMER_DECLARE(mScanTXTTimer)
|
|
MOZ_TIMER_DECLARE(mGlyphHitTimer)
|
|
MOZ_TIMER_DECLARE(mTotalMimeTime)
|
|
|
|
|
|
//////////////////////////////////////////////////////////
|
|
protected:
|
|
//////////////////////////////////////////////////////////
|
|
nsCOMPtr<nsIIOService> mIOService; // for performance reasons, cache the netwerk service...
|
|
/**
|
|
Completes<ul>
|
|
<li>Case 1: mailto: "mozilla@bucksch.org" -> "mailto:mozilla@bucksch.org"
|
|
<li>Case 2: http: "www.mozilla.org" -> "http://www.mozilla.org"
|
|
<li>Case 3: ftp: "ftp.mozilla.org" -> "ftp://www.mozilla.org"
|
|
</ul>
|
|
It does no check, if the resulting URL is valid.
|
|
@param text (in): abbreviated URL
|
|
@param pos (in): position of "@" (case 1) or first "." (case 2 and 3)
|
|
@return Completed URL at success and empty string at failure
|
|
*/
|
|
void CompleteAbbreviatedURL(const PRUnichar * aInString, PRInt32 aInLength,
|
|
const PRUint32 pos, nsString& aOutString);
|
|
|
|
|
|
//////////////////////////////////////////////////////////
|
|
private:
|
|
//////////////////////////////////////////////////////////
|
|
|
|
enum LIMTYPE
|
|
{
|
|
LT_IGNORE, // limitation not checked
|
|
LT_DELIMITER, // not alphanumeric and not rep[0]. End of text is also ok.
|
|
LT_ALPHA, // alpha char
|
|
LT_DIGIT
|
|
};
|
|
|
|
/**
|
|
@param text (in): the string to search through.<p>
|
|
If before = IGNORE,<br>
|
|
rep is compared starting at 1. char of text (text[0]),<br>
|
|
else starting at 2. char of text (text[1]).
|
|
Chars after "after"-delimiter are ignored.
|
|
@param rep (in): the string to look for
|
|
@param aRepLen (in): the number of bytes in the string to look for
|
|
@param before (in): limitation before rep
|
|
@param after (in): limitation after rep
|
|
@return true, if rep is found and limitation spec is met or rep is empty
|
|
*/
|
|
PRBool ItMatchesDelimited(const PRUnichar * aInString, PRInt32 aInLength,
|
|
const PRUnichar * rep, PRInt32 aRepLen, LIMTYPE before, LIMTYPE after);
|
|
|
|
/**
|
|
@param see ItMatchesDelimited
|
|
@return Number of ItMatchesDelimited in text
|
|
*/
|
|
PRUint32 NumberOfMatches(const PRUnichar * aInString, PRInt32 aInStringLength,
|
|
const PRUnichar* rep, PRInt32 aRepLen, LIMTYPE before, LIMTYPE after);
|
|
|
|
/**
|
|
Currently only changes "<", ">" and "&". All others stay as they are.<p>
|
|
"Char" in function name to avoid side effects with nsString(ch)
|
|
constructors.
|
|
@param ch (in)
|
|
@param aStringToAppendto (out) - the string to append the escaped
|
|
string to.
|
|
*/
|
|
void EscapeChar(const PRUnichar ch, nsString& aStringToAppendto);
|
|
|
|
/**
|
|
See EscapeChar. Escapes the string in place.
|
|
*/
|
|
void EscapeStr(nsString& aInString);
|
|
|
|
/**
|
|
Currently only reverts "<", ">" and "&". All others stay as they are.<p>
|
|
@param aInString (in) HTML string
|
|
@param aStartPos (in) start index into the buffer
|
|
@param aLength (in) length of the buffer
|
|
@param aOutString (out) unescaped buffer
|
|
*/
|
|
void UnescapeStr(const PRUnichar * aInString, PRInt32 aStartPos, PRInt32 aLength, nsString& aOutString);
|
|
|
|
/**
|
|
<em>Note</em>: I use different strategies to pass context between the
|
|
functions (full text and pos vs. cutted text and col0, glphyTextLen vs.
|
|
replaceBefore/-After). It makes some sense, but is hard to understand
|
|
(maintain) :-(.
|
|
*/
|
|
|
|
/**
|
|
<p><em>Note:</em> replaceBefore + replaceAfter + 1 (for char at pos) chars
|
|
in text should be replaced by outputHTML.</p>
|
|
<p><em>Note:</em> This function should be able to process a URL on multiple
|
|
lines, but currently, ScanForURLs is called for every line, so it can't.</p>
|
|
@param text (in): includes possibly a URL
|
|
@param pos (in): position in text, where either ":", "." or "@" are found
|
|
@param whathasbeendone (in): What the calling ScanTXT did/has to do with the
|
|
(not-linkified) text, i.e. usually the "whattodo" parameter.
|
|
(Needed to calculate replaceBefore.) NOT what will be done with
|
|
the content of the link.
|
|
@param outputHTML (out): URL with HTML-a tag
|
|
@param replaceBefore (out): Number of chars of URL before pos
|
|
@param replaceAfter (out): Number of chars of URL after pos
|
|
@return URL found
|
|
*/
|
|
PRBool FindURL(const PRUnichar * aInString, PRInt32 aInLength, const PRUint32 pos,
|
|
const PRUint32 whathasbeendone,
|
|
nsString& outputHTML, PRInt32& replaceBefore, PRInt32& replaceAfter);
|
|
|
|
enum modetype {
|
|
unknown,
|
|
RFC1738, /* Check, if RFC1738, APPENDIX compliant,
|
|
like "<URL:http://www.mozilla.org>". */
|
|
RFC2396E, /* RFC2396, APPENDIX E allows anglebrackets (like
|
|
"<http://www.mozilla.org>") (without "URL:") or
|
|
quotation marks(like ""http://www.mozilla.org"").
|
|
Also allow email addresses without scheme,
|
|
e.g. "<mozilla@bucksch.org>" */
|
|
freetext, /* assume heading scheme
|
|
with "[a-zA-Z][a-zA-Z0-9+\-\.]*:" like "news:"
|
|
(see RFC2396, Section 3.1).
|
|
Certain characters (see code) or any whitespace
|
|
(including linebreaks) end the URL.
|
|
Other certain (punctation) characters (see code)
|
|
at the end are stripped off. */
|
|
abbreviated /* Similar to freetext, but without scheme, e.g.
|
|
"www.mozilla.org", "ftp.mozilla.org" and
|
|
"mozilla@bucksch.org". */
|
|
/* RFC1738 and RFC2396E type URLs may use multiple lines,
|
|
whitespace is stripped. Special characters like ")" stay intact.*/
|
|
};
|
|
|
|
/**
|
|
* @param text (in), pos (in): see FindURL
|
|
* @param check (in): Start must be conform with this mode
|
|
* @param start (out): Position in text, where URL (including brackets or
|
|
* similar) starts
|
|
* @return |check|-conform start has been found
|
|
*/
|
|
PRBool FindURLStart(const PRUnichar * aInString, PRInt32 aInLength, const PRUint32 pos,
|
|
const modetype check, PRUint32& start);
|
|
|
|
/**
|
|
* @param text (in), pos (in): see FindURL
|
|
* @param check (in): End must be conform with this mode
|
|
* @param start (in): see FindURLStart
|
|
* @param end (out): Similar to |start| param of FindURLStart
|
|
* @return |check|-conform end has been found
|
|
*/
|
|
PRBool FindURLEnd(const PRUnichar * aInString, PRInt32 aInStringLength, const PRUint32 pos,
|
|
const modetype check, const PRUint32 start, PRUint32& end);
|
|
|
|
/**
|
|
* @param text (in), pos (in), whathasbeendone (in): see FindURL
|
|
* @param check (in): Current mode
|
|
* @param start (in), end (in): see FindURLEnd
|
|
* @param txtURL (out): Guessed (raw) URL.
|
|
* Without whitespace, but not completed.
|
|
* @param desc (out): Link as shown to the user, but already escaped.
|
|
* Should be placed between the <a> and </a> tags.
|
|
* @param replaceBefore(out), replaceAfter (out): see FindURL
|
|
*/
|
|
void CalculateURLBoundaries(const PRUnichar * aInString, PRInt32 aInStringLength,
|
|
const PRUint32 pos, const PRUint32 whathasbeendone,
|
|
const modetype check, const PRUint32 start, const PRUint32 end,
|
|
nsString& txtURL, nsString& desc,
|
|
PRInt32& replaceBefore, PRInt32& replaceAfter);
|
|
|
|
/**
|
|
* @param txtURL (in), desc (in): see CalculateURLBoundaries
|
|
* @param outputHTML (out): see FindURL
|
|
* @return A valid URL could be found (and creation of HTML successful)
|
|
*/
|
|
PRBool CheckURLAndCreateHTML(
|
|
const nsString& txtURL, const nsString& desc, const modetype mode,
|
|
nsString& outputHTML);
|
|
|
|
/**
|
|
@param text (in): line of text possibly with tagTXT.<p>
|
|
if col0 is true,
|
|
starting with tagTXT<br>
|
|
else
|
|
starting one char before tagTXT
|
|
@param col0 (in): tagTXT is on the beginning of the line (or paragraph).
|
|
open must be 0 then.
|
|
@param tagTXT (in): Tag in plaintext to search for, e.g. "*"
|
|
@param aTagTxtLen (in): length of tagTXT.
|
|
@param tagHTML (in): HTML-Tag to replace tagTXT with,
|
|
without "<" and ">", e.g. "strong"
|
|
@param attributeHTML (in): HTML-attribute to add to opening tagHTML,
|
|
e.g. "class=txt_star"
|
|
@param aOutString: string to APPEND the converted html into
|
|
@param open (in/out): Number of currently open tags of type tagHTML
|
|
@return Conversion succeeded
|
|
*/
|
|
PRBool StructPhraseHit(const PRUnichar * aInString, PRInt32 aInStringLength, PRBool col0,
|
|
const PRUnichar* tagTXT,
|
|
PRInt32 aTagTxtLen,
|
|
const char* tagHTML, const char* attributeHTML,
|
|
nsString& aOutputString, PRUint32& openTags);
|
|
|
|
/**
|
|
@param text (in), col0 (in): see GlyphHit
|
|
@param tagTXT (in): Smily, see also StructPhraseHit
|
|
@param imageName (in): the basename of the file that contains the image for this smilie
|
|
@param outputHTML (out): new string containing the html for the smily
|
|
@param glyphTextLen (out): see GlyphHit
|
|
*/
|
|
PRBool
|
|
SmilyHit(const PRUnichar * aInString, PRInt32 aLength, PRBool col0,
|
|
const char* tagTXT, const char* imageName,
|
|
nsString& outputHTML, PRInt32& glyphTextLen);
|
|
|
|
/**
|
|
Checks, if we can replace some chars at the start of line with prettier HTML
|
|
code.<p>
|
|
If success is reported, replace the first glyphTextLen chars with outputHTML
|
|
|
|
@param text (in): line of text possibly with Glyph.<p>
|
|
If col0 is true,
|
|
starting with Glyph <br><!-- (br not part of text) -->
|
|
else
|
|
starting one char before Glyph
|
|
@param col0 (in): text starts at the beginning of the line (or paragraph)
|
|
@param aOutString (out): APPENDS html for the glyph to this string
|
|
@param glyphTextLen (out): Length of original text to replace
|
|
@return see StructPhraseHit
|
|
*/
|
|
PRBool GlyphHit(const PRUnichar * aInString, PRInt32 aInLength, PRBool col0,
|
|
nsString& aOutString, PRInt32& glyphTextLen);
|
|
|
|
/**
|
|
Check if a given url should be linkified.
|
|
@param aURL (in): url to be checked on.
|
|
*/
|
|
PRBool ShouldLinkify(const nsCString& aURL);
|
|
};
|
|
|
|
// It's said, that Win32 and Mac don't like static const members
|
|
const PRInt32 mozTXTToHTMLConv_lastMode = 4;
|
|
// Needed (only) by mozTXTToHTMLConv::FindURL
|
|
const PRInt32 mozTXTToHTMLConv_numberOfModes = 4; // dito; unknown not counted
|
|
|
|
#endif
|