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public/vendor/pagedown/Markdown.Converter.js view on Meta::CPAN
return whole_match;
}
}
alt_text = escapeCharacters(attributeEncode(alt_text), "*_[]()");
url = escapeCharacters(url, "*_");
var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
// attacklab: Markdown.pl adds empty title attributes to images.
// Replicate this bug.
//if (title != "") {
title = attributeEncode(title);
title = escapeCharacters(title, "*_");
result += " title=\"" + title + "\"";
//}
result += " />";
return result;
}
function _DoHeaders(text) {
// Setext-style headers:
// Header 1
// ========
//
// Header 2
// --------
//
text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
function (wholeMatch, m1) { return "<h1>" + _RunSpanGamut(m1) + "</h1>\n\n"; }
);
text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
function (matchFound, m1) { return "<h2>" + _RunSpanGamut(m1) + "</h2>\n\n"; }
);
// atx-style headers:
// # Header 1
// ## Header 2
// ## Header 2 with closing hashes ##
// ...
// ###### Header 6
//
/*
text = text.replace(/
^(\#{1,6}) // $1 = string of #'s
[ \t]*
(.+?) // $2 = Header text
[ \t]*
\#* // optional closing #'s (not counted)
\n+
/gm, function() {...});
*/
text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
function (wholeMatch, m1, m2) {
var h_level = m1.length;
return "<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">\n\n";
}
);
return text;
}
function _DoLists(text, isInsideParagraphlessListItem) {
//
// Form HTML ordered (numbered) and unordered (bulleted) lists.
//
// attacklab: add sentinel to hack around khtml/safari bug:
// http://bugs.webkit.org/show_bug.cgi?id=11231
text += "~0";
// Re-usable pattern to match any entirel ul or ol list:
/*
var whole_list = /
( // $1 = whole list
( // $2
[ ]{0,3} // attacklab: g_tab_width - 1
([*+-]|\d+[.]) // $3 = first list item marker
[ \t]+
)
[^\r]+?
( // $4
~0 // sentinel for workaround; should be $
|
\n{2,}
(?=\S)
(?! // Negative lookahead for another list item marker
[ \t]*
(?:[*+-]|\d+[.])[ \t]+
)
)
)
/g
*/
var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
if (g_list_level) {
text = text.replace(whole_list, function (wholeMatch, m1, m2) {
var list = m1;
var list_type = (m2.search(/[*+-]/g) > -1) ? "ul" : "ol";
var result = _ProcessListItems(list, list_type, isInsideParagraphlessListItem);
// Trim any trailing whitespace, to put the closing `</$list_type>`
// up on the preceding line, to get it past the current stupid
// HTML block parser. This is a hack to work around the terrible
// hack that is the HTML block parser.
result = result.replace(/\s+$/, "");
result = "<" + list_type + ">" + result + "</" + list_type + ">\n";
return result;
});
} else {
whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g;
text = text.replace(whole_list, function (wholeMatch, m1, m2, m3) {
public/vendor/pagedown/Markdown.Converter.js view on Meta::CPAN
^[ \t]*>[ \t]? // '>' at the start of a line
.+\n // rest of the first line
(.+\n)* // subsequent consecutive lines
\n* // blanks
)+
)
/gm, function(){...});
*/
text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
function (wholeMatch, m1) {
var bq = m1;
// attacklab: hack around Konqueror 3.5.4 bug:
// "----------bug".replace(/^-/g,"") == "bug"
bq = bq.replace(/^[ \t]*>[ \t]?/gm, "~0"); // trim one level of quoting
// attacklab: clean up hack
bq = bq.replace(/~0/g, "");
bq = bq.replace(/^[ \t]+$/gm, ""); // trim whitespace-only lines
bq = _RunBlockGamut(bq); // recurse
bq = bq.replace(/(^|\n)/g, "$1 ");
// These leading spaces screw with <pre> content, so we need to fix that:
bq = bq.replace(
/(\s*<pre>[^\r]+?<\/pre>)/gm,
function (wholeMatch, m1) {
var pre = m1;
// attacklab: hack around Konqueror 3.5.4 bug:
pre = pre.replace(/^ /mg, "~0");
pre = pre.replace(/~0/g, "");
return pre;
});
return hashBlock("<blockquote>\n" + bq + "\n</blockquote>");
}
);
return text;
}
function _FormParagraphs(text, doNotUnhash) {
//
// Params:
// $text - string to process with html <p> tags
//
// Strip leading and trailing lines:
text = text.replace(/^\n+/g, "");
text = text.replace(/\n+$/g, "");
var grafs = text.split(/\n{2,}/g);
var grafsOut = [];
var markerRe = /~K(\d+)K/;
//
// Wrap <p> tags.
//
var end = grafs.length;
for (var i = 0; i < end; i++) {
var str = grafs[i];
// if this is an HTML marker, copy it
if (markerRe.test(str)) {
grafsOut.push(str);
}
else if (/\S/.test(str)) {
str = _RunSpanGamut(str);
str = str.replace(/^([ \t]*)/g, "<p>");
str += "</p>"
grafsOut.push(str);
}
}
//
// Unhashify HTML blocks
//
if (!doNotUnhash) {
end = grafsOut.length;
for (var i = 0; i < end; i++) {
var foundAny = true;
while (foundAny) { // we may need several runs, since the data may be nested
foundAny = false;
grafsOut[i] = grafsOut[i].replace(/~K(\d+)K/g, function (wholeMatch, id) {
foundAny = true;
return g_html_blocks[id];
});
}
}
}
return grafsOut.join("\n\n");
}
function _EncodeAmpsAndAngles(text) {
// Smart processing for ampersands and angle brackets that need to be encoded.
// Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
// http://bumppo.net/projects/amputator/
text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, "&");
// Encode naked <'s
text = text.replace(/<(?![a-z\/?!]|~D)/gi, "<");
return text;
}
function _EncodeBackslashEscapes(text) {
//
// Parameter: String.
// Returns: The string, with after processing the following backslash
// escape sequences.
//
// attacklab: The polite way to do this is with the new
// escapeCharacters() function:
//
// text = escapeCharacters(text,"\\",true);
// text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
//
// ...but we're sidestepping its use of the (slow) RegExp constructor
// as an optimization for Firefox. This function gets called a LOT.
text = text.replace(/\\(\\)/g, escapeCharacters_callback);
text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g, escapeCharacters_callback);
return text;
}
var charInsideUrl = "[-A-Z0-9+&@#/%?=~_|[\\]()!:,.;]",
charEndingUrl = "[-A-Z0-9+&@#/%=~_|[\\])]",
autoLinkRegex = new RegExp("(=\"|<)?\\b(https?|ftp)(://" + charInsideUrl + "*" + charEndingUrl + ")(?=$|\\W)", "gi"),
endCharRegex = new RegExp(charEndingUrl, "i");
function handleTrailingParens(wholeMatch, lookbehind, protocol, link) {
if (lookbehind)
return wholeMatch;
if (link.charAt(link.length - 1) !== ")")
return "<" + protocol + link + ">";
var parens = link.match(/[()]/g);
var level = 0;
for (var i = 0; i < parens.length; i++) {
if (parens[i] === "(") {
if (level <= 0)
level = 1;
else
level++;
}
else {
level--;
}
}
var tail = "";
if (level < 0) {
var re = new RegExp("\\){1," + (-level) + "}$");
link = link.replace(re, function (trailingParens) {
tail = trailingParens;
return "";
});
}
if (tail) {
var lastChar = link.charAt(link.length - 1);
if (!endCharRegex.test(lastChar)) {
tail = lastChar + tail;
link = link.substr(0, link.length - 1);
}
}
return "<" + protocol + link + ">" + tail;
}
function _DoAutoLinks(text) {
// note that at this point, all other URL in the text are already hyperlinked as <a href=""></a>
// *except* for the <http://www.foo.com> case
// automatically add < and > around unadorned raw hyperlinks
// must be preceded by a non-word character (and not by =" or <) and followed by non-word/EOF character
// simulating the lookbehind in a consuming way is okay here, since a URL can neither and with a " nor
// with a <, so there is no risk of overlapping matches.
text = text.replace(autoLinkRegex, handleTrailingParens);
// autolink anything like <http://example.com>
var replacer = function (wholematch, m1) { return "<a href=\"" + m1 + "\">" + pluginHooks.plainLinkText(m1) + "</a>"; }
text = text.replace(/<((https?|ftp):[^'">\s]+)>/gi, replacer);
// Email addresses: <address@domain.foo>
/*
text = text.replace(/
<
(?:mailto:)?
(
[-.\w]+
\@
[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
)
>
/gi, _DoAutoLinks_callback());
*/
/* disabling email autolinking, since we don't do that on the server, either
text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
function(wholeMatch,m1) {
return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
}
);
*/
return text;
}
function _UnescapeSpecialChars(text) {
//
// Swap back in all the special characters we've hidden.
//
text = text.replace(/~E(\d+)E/g,
function (wholeMatch, m1) {
var charCodeToReplace = parseInt(m1);
return String.fromCharCode(charCodeToReplace);
}
);
return text;
}
function _Outdent(text) {
//
// Remove one level of line-leading tabs or spaces
//
// attacklab: hack around Konqueror 3.5.4 bug:
// "----------bug".replace(/^-/g,"") == "bug"
text = text.replace(/^(\t|[ ]{1,4})/gm, "~0"); // attacklab: g_tab_width
// attacklab: clean up hack
text = text.replace(/~0/g, "")
return text;
}
function _Detab(text) {
if (!/\t/.test(text))
return text;
var spaces = [" ", " ", " ", " "],
skew = 0,
v;
return text.replace(/[\n\t]/g, function (match, offset) {
if (match === "\n") {
skew = offset + 1;
return match;
}
v = (offset - skew) % 4;
skew = offset + 1;
return spaces[v];
});
}
//
// attacklab: Utility functions
//
var _problemUrlChars = /(?:["'*()[\]:]|~D)/g;
// hex-encodes some unusual "problem" chars in URLs to avoid URL detection problems
function encodeProblemUrlChars(url) {
if (!url)
return "";
var len = url.length;
return url.replace(_problemUrlChars, function (match, offset) {
if (match == "~D") // escape for dollar
return "%24";
if (match == ":") {
if (offset == len - 1 || /[0-9\/]/.test(url.charAt(offset + 1)))
return ":"
}
return "%" + match.charCodeAt(0).toString(16);
});
}
function escapeCharacters(text, charsToEscape, afterBackslash) {
// First we have to escape the escape characters so that
// we can build a character class out of them
var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g, "\\$1") + "])";
if (afterBackslash) {
regexString = "\\\\" + regexString;
}
var regex = new RegExp(regexString, "g");
text = text.replace(regex, escapeCharacters_callback);
return text;
}
function escapeCharacters_callback(wholeMatch, m1) {
var charCodeToEscape = m1.charCodeAt(0);
return "~E" + charCodeToEscape + "E";
}
}; // end of the Markdown.Converter constructor
})();
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