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Better API for parsing out blocks in the parser.

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This commit is contained in:
Robin Ward 2013-08-29 11:38:51 -04:00
parent bbd79aafd1
commit 3cec95a2c3
6 changed files with 107 additions and 181 deletions
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145
app/assets/javascripts/discourse/dialects/bbcode_dialect.js
View file

@ -102,128 +102,61 @@ replaceBBCodeParams("color", function(param, contents) {
}
});
Discourse.Dialect.on("register", function(event) {
// Handles `[code] ... [/code]` blocks
Discourse.Dialect.replaceBlock({
start: /(\[code\])([\s\S]*)/igm,
stop: '[/code]',
var dialect = event.dialect,
MD = event.MD;
emitter: function(blockContents) {
return ['p', ['pre'].concat(blockContents)];
}
});
/**
Support BBCode [code] blocks
// Support BBCode [quote] blocks
Discourse.Dialect.replaceBlock({
start: new RegExp("\\[quote=?([^\\[\\]]+)?\\]([\\s\\S]*)", "igm"),
stop: '[/quote]',
emitter: function(blockContents, matches, options) {
@method bbcodeCode
@param {Markdown.Block} block the block to examine
@param {Array} next the next blocks in the sequence
@return {Array} the JsonML containing the markup or undefined if nothing changed.
@namespace Discourse.Dialect
**/
dialect.inline["[code]"] = function bbcodeCode(text, orig_match) {
var bbcodePattern = new RegExp("\\[code\\]([\\s\\S]*?)\\[\\/code\\]", "igm"),
m = bbcodePattern.exec(text);
var paramsString = matches[1].replace(/\"/g, ''),
params = {'class': 'quote'},
paramsSplit = paramsString.split(/\, */),
username = paramsSplit[0];
if (m) {
var contents = m[1].trim().split("\n");
paramsSplit.forEach(function(p,i) {
if (i > 0) {
var assignment = p.split(':');
if (assignment[0] && assignment[1]) {
params['data-' + assignment[0]] = assignment[1].trim();
}
}
});
var html = ['pre', "\n"];
contents.forEach(function (n) {
html.push(n.trim());
html.push(["br"]);
html.push("\n");
});
return [m[0].length, html];
var avatarImg;
if (options.lookupAvatarByPostNumber) {
// client-side, we can retrieve the avatar from the post
var postNumber = parseInt(params['data-post'], 10);
avatarImg = options.lookupAvatarByPostNumber(postNumber);
} else if (options.lookupAvatar) {
// server-side, we need to lookup the avatar from the username
avatarImg = options.lookupAvatar(username);
}
};
/**
Support BBCode [quote] blocks
var contents = this.processInline(blockContents.join(" \n \n"));
contents.unshift('blockquote');
@method bbcodeQuote
@param {Markdown.Block} block the block to examine
@param {Array} next the next blocks in the sequence
@return {Array} the JsonML containing the markup or undefined if nothing changed.
@namespace Discourse.Dialect
**/
dialect.block['quote'] = function bbcodeQuote(block, next) {
var m = new RegExp("\\[quote=?([^\\[\\]]+)?\\]([\\s\\S]*)", "igm").exec(block);
if (m) {
var paramsString = m[1].replace(/\"/g, ''),
params = {'class': 'quote'},
paramsSplit = paramsString.split(/\, */),
username = paramsSplit[0],
opts = dialect.options,
startPos = block.indexOf(m[0]),
leading,
quoteContents = [],
result = [];
if (startPos > 0) {
leading = block.slice(0, startPos);
var para = ['p'];
this.processInline(leading).forEach(function (l) {
para.push(l);
});
result.push(para);
}
paramsSplit.forEach(function(p,i) {
if (i > 0) {
var assignment = p.split(':');
if (assignment[0] && assignment[1]) {
params['data-' + assignment[0]] = assignment[1].trim();
}
}
});
var avatarImg;
if (opts.lookupAvatarByPostNumber) {
// client-side, we can retrieve the avatar from the post
var postNumber = parseInt(params['data-post'], 10);
avatarImg = opts.lookupAvatarByPostNumber(postNumber);
} else if (opts.lookupAvatar) {
// server-side, we need to lookup the avatar from the username
avatarImg = opts.lookupAvatar(username);
}
if (m[2]) { next.unshift(MD.mk_block(m[2])); }
while (next.length > 0) {
var b = next.shift(),
n = b.match(/([\s\S]*)\[\/quote\]([\s\S]*)/m);
if (n) {
if (n[2]) {
next.unshift(MD.mk_block(n[2]));
}
quoteContents.push(n[1]);
break;
} else {
quoteContents.push(b);
}
}
var contents = this.processInline(quoteContents.join(" \n \n"));
contents.unshift('blockquote');
result.push(['p', ['aside', params,
return ['p', ['aside', params,
['div', {'class': 'title'},
['div', {'class': 'quote-controls'}],
avatarImg ? avatarImg : "",
I18n.t('user.said',{username: username})
I18n.t('user.said', {username: username})
],
contents
]]);
return result;
}
};
]];
}
});
Discourse.Dialect.on("parseNode", function(event) {
var node = event.node,
path = event.path;

58
app/assets/javascripts/discourse/dialects/dialect.js
View file

@ -204,6 +204,64 @@ Discourse.Dialect = {
};
},
replaceBlock: function(args) {
dialect.block[args.start.toString()] = function(block, next) {
args.start.lastIndex = 0;
var m = (args.start).exec(block);
if (!m) { return; }
var startPos = block.indexOf(m[0]),
leading,
blockContents = [],
result = [],
lineNumber = block.lineNumber;
if (startPos > 0) {
leading = block.slice(0, startPos);
lineNumber += (leading.split("\n").length - 1);
var para = ['p'];
this.processInline(leading).forEach(function (l) {
para.push(l);
});
result.push(para);
}
if (m[2]) { next.unshift(MD.mk_block(m[2], null, lineNumber + 1)); }
lineNumber++;
while (next.length > 0) {
var b = next.shift(),
blockLine = b.lineNumber,
diff = ((typeof blockLine === "undefined") ? lineNumber : blockLine) - lineNumber;
var endFound = b.indexOf(args.stop),
leadingContents = b.slice(0, endFound),
trailingContents = b.slice(endFound+args.stop.length);
for (var i=1; i<diff; i++) {
blockContents.push("");
}
lineNumber = blockLine + b.split("\n").length - 1;
if (endFound !== -1) {
if (trailingContents) {
next.unshift(MD.mk_block(trailingContents));
}
blockContents.push(leadingContents.replace(/\s+$/, ""));
break;
} else {
blockContents.push(b);
}
}
var test = args.emitter.call(this, blockContents, m, dialect.options);
result.push(test);
return result;
};
},
/**
After the parser has been executed, post process any text nodes in the HTML document.
This is useful if you want to apply a transformation to the text.

77
app/assets/javascripts/discourse/dialects/github_code_dialect.js
View file

@ -5,77 +5,12 @@
@event register
@namespace Discourse.Dialect
**/
Discourse.Dialect.on("register", function(event) {
var dialect = event.dialect,
MD = event.MD;
/**
Support for github style code blocks
@method githubCode
@param {Markdown.Block} block the block to examine
@param {Array} next the next blocks in the sequence
@return {Array} the JsonML containing the markup or undefined if nothing changed.
@namespace Discourse.Dialect
**/
dialect.block.github_code = function githubCode(block, next) {
var m = /^`{3}([^\n]+)?\n?([\s\S]*)?/gm.exec(block);
if (m) {
var startPos = block.indexOf(m[0]),
leading,
codeContents = [],
result = [],
lineNumber = block.lineNumber;
if (startPos > 0) {
leading = block.slice(0, startPos);
lineNumber += (leading.split("\n").length - 1);
var para = ['p'];
this.processInline(leading).forEach(function (l) {
para.push(l);
});
result.push(para);
}
if (m[2]) { next.unshift(MD.mk_block(m[2], null, lineNumber + 1)); }
lineNumber++;
while (next.length > 0) {
var b = next.shift(),
blockLine = b.lineNumber,
diff = ((typeof blockLine === "undefined") ? lineNumber : blockLine) - lineNumber;
var endFound = b.indexOf('```'),
leadingCode = b.slice(0, endFound),
trailingCode = b.slice(endFound+3);
for (var i=1; i<diff; i++) {
codeContents.push("");
}
lineNumber = blockLine + b.split("\n").length - 1;
if (endFound !== -1) {
if (trailingCode) {
next.unshift(MD.mk_block(trailingCode));
}
codeContents.push(leadingCode.replace(/\s+$/, ""));
break;
} else {
codeContents.push(b);
}
}
result.push(['p', ['pre', ['code', {'class': m[1] || 'lang-auto'}, codeContents.join("\n") ]]]);
return result;
}
};
Discourse.Dialect.replaceBlock({
start: /^`{3}([^\n]+)?\n?([\s\S]*)?/gm,
stop: '```',
emitter: function(blockContents, matches) {
return ['p', ['pre', ['code', {'class': matches[1] || 'lang-auto'}, blockContents.join("\n") ]]];
}
});
// Ensure that content in a code block is fully escaped. This way it's not white listed

2
spec/components/pretty_text_spec.rb
View file

@ -14,7 +14,7 @@ describe PrettyText do
end
it "produces a quote even with new lines in it" do
PrettyText.cook("[quote=\"EvilTrout, post:123, topic:456, full:true\"]ddd\n[/quote]").should match_html "<p><aside class=\"quote\" data-post=\"123\" data-topic=\"456\" data-full=\"true\"><div class=\"title\">\n<div class=\"quote-controls\"></div>\n<img width=\"20\" height=\"20\" src=\"http://test.localhost/uploads/default/avatars/42d/57c/46ce7ee487/40.png\" class=\"avatar\">EvilTrout said:</div>\n<blockquote>ddd<br>\n</blockquote></aside></p>"
PrettyText.cook("[quote=\"EvilTrout, post:123, topic:456, full:true\"]ddd\n[/quote]").should match_html "<p><aside class=\"quote\" data-post=\"123\" data-topic=\"456\" data-full=\"true\"><div class=\"title\">\n<div class=\"quote-controls\"></div>\n<img width=\"20\" height=\"20\" src=\"http://test.localhost/uploads/default/avatars/42d/57c/46ce7ee487/40.png\" class=\"avatar\">EvilTrout said:</div>\n<blockquote>ddd</blockquote></aside></p>"
end
it "should produce a quote" do

4
test/javascripts/components/bbcode_test.js
View file

@ -11,8 +11,8 @@ test('basic bbcode', function() {
format("[i]emphasis[/i]", "<span class=\"bbcode-i\">emphasis</span>", "italics text");
format("[u]underlined[/u]", "<span class=\"bbcode-u\">underlined</span>", "underlines text");
format("[s]strikethrough[/s]", "<span class=\"bbcode-s\">strikethrough</span>", "strikes-through text");
format("[code]\nx++\n[/code]", "<pre>\nx++<br/>\n</pre>", "makes code into pre");
format("[code]\nx++\ny++\nz++\n[/code]", "<pre>\nx++<br/>\ny++<br/>\nz++<br/>\n</pre>", "makes code into pre");
format("[code]\nx++\n[/code]", "<pre>\nx++</pre>", "makes code into pre");
format("[code]\nx++\ny++\nz++\n[/code]", "<pre>\nx++\ny++\nz++</pre>", "makes code into pre");
format("[spoiler]it's a sled[/spoiler]", "<span class=\"spoiler\">it's a sled</span>", "supports spoiler tags");
format("[img]http://eviltrout.com/eviltrout.png[/img]", "<img src=\"http://eviltrout.com/eviltrout.png\"/>", "links images");
format("[url]http://bettercallsaul.com[/url]", "<a href=\"http://bettercallsaul.com\">http://bettercallsaul.com</a>", "supports [url] without a title");

2
test/javascripts/components/markdown_test.js
View file

@ -114,7 +114,7 @@ test("Quotes", function() {
cookedOptions("[quote=\"eviltrout, post: 1\"]\na quote\n\nsecond line\n[/quote]",
{ topicId: 2 },
"<p><aside class=\"quote\" data-post=\"1\"><div class=\"title\"><div class=\"quote-controls\"></div>eviltrout said:</div><blockquote>" +
"a quote<br/><br/>second line<br/></blockquote></aside></p>",
"a quote<br/><br/>second line</blockquote></aside></p>",
"works with multiple lines");
cookedOptions("1[quote=\"bob, post:1\"]my quote[/quote]2",