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'use strict';
const parseAttr = require('md-attr-parser');
const htmlElemAttr = require('html-element-attributes');
const DOMEventHandler = [
"onabort", "onautocomplete", "onautocompleteerror",
"onblur", "oncancel", "oncanplay",
"oncanplaythrough", "onchange", "onclick",
"onclose", "oncontextmenu", "oncuechange",
"ondblclick", "ondrag", "ondragend",
"ondragenter", "ondragexit", "ondragleave",
"ondragover", "ondragstart", "ondrop",
"ondurationchange", "onemptied", "onended",
"onerror", "onfocus", "oninput",
"oninvalid", "onkeydown", "onkeypress",
"onkeyup", "onload", "onloadeddata",
"onloadedmetadata", "onloadstart", "onmousedown",
"onmouseenter", "onmouseleave", "onmousemove",
"onmouseout", "onmouseover", "onmouseup",
"onmousewheel", "onpause", "onplay",
"onplaying", "onprogress", "onratechange",
"onreset", "onresize", "onscroll",
"onseeked", "onseeking", "onselect",
"onshow", "onsort", "onstalled",
"onsubmit", "onsuspend", "ontimeupdate",
"ontoggle", "onvolumechange", "onwaiting"
];
const convTypeTag = {
'image':'img',
'link': 'a',
'heading': 'h1',
'strong': 'strong',
'emphasis': 'em',
'delete': 's',
'inlineCode': 'code',
};
/* TODO :
* - [ ] fencedCode // require('./tokenize/code-fenced'),
- [x] atxHeading //require('./tokenize/heading-atx'),
- [ ] setextHeading //require('./tokenize/heading-setext'),
- [ ] table //require('./tokenize/table'),
- [x] link //require('./tokenize/link'),
- [x] strong //require('./tokenize/strong'),
- [x] emphasis //require('./tokenize/emphasis'),
- [x] deletion //require('./tokenize/delete'),
- [x] code //require('./tokenize/code-inline'),
Tests with ava
xo as linter
*/
const tokenizeGenerator = ( prefix, oldParser, config ) => function tokenize(eat, value, silent) {
let eaten = oldParser.bind(this)(eat,value,silent);
var self = this;
var index = 0;
var pedantic = self.options.pedantic;
var commonmark = self.options.commonmark;
var gfm = self.options.gfm;
var parsedAttr;
const length = value.length;
if( !eaten || !eaten.position ) {
return undefined;
}
const type = convTypeTag[eaten.type];
index = eaten.position.end.offset - eaten.position.start.offset;
if (index + prefix.length < length && value.charAt(index + prefix.length) === '{' ) {
parsedAttr = parseAttr(value, index + prefix.length);
}
if (parsedAttr) {
if( config.scope && config.scope != "none" ) {
const filtredProp = filterAttributes( parsedAttr.prop, config, type );
if( filtredProp !== {} ) {
if( eaten.data ) {
eaten.data.hProperties = filtredProp;
} else {
eaten.data = {hProperties: filtredProp};
}
}
}
eaten = eat(prefix + parsedAttr.eaten)(eaten);
}
return eaten;
};
function filterAttributes( prop, config, type ) {
const scope = config.scope;
const allowDangerousDOMEventHandlers = config.allowDangerousDOMEventHandlers;
if( scope === "specific" ) {
console.log(type);
Object.getOwnPropertyNames(prop).forEach ( p => {
if( (!htmlElemAttr[type] || htmlElemAttr[type].indexOf(p) < 0) &&
htmlElemAttr["*"].indexOf(p) < 0 &&
DOMEventHandler.indexOf(p) < 0 ) {
delete prop[p];
}
});
} else if ( scope === "global" ) {
Object.getOwnPropertyNames(prop).forEach ( p => {
if( htmlElemAttr["*"].indexOf(p) < 0 &&
DOMEventHandler.indexOf(p) < 0 ) {
delete prop[p];
}
});
}
if( ! allowDangerousDOMEventHandlers ) {
Object.getOwnPropertyNames(prop).forEach ( p => {
if( DOMEventHandler.indexOf(p) >= 0 ) {
delete prop[p];
}
});
}
return prop;
}
module.exports = function linkAttr( config_user ) {
let parser = this.Parser;
const defaul_config = {
allowDangerousDOMEventHandlers: false,
elements: ["link","image","header"],
extends: [],
scope: "specific",
};
const config = {...defaul_config, ...config_user};
if (!isRemarkParser(parser)) {
throw new Error('Missing parser to attach `remark-attr` [link] (to)');
}
let tokenizers = parser.prototype.inlineTokenizers;
let tokenizersBlock = parser.prototype.blockTokenizers ;
const oldLink = tokenizers.link;
const oldStrong = tokenizers.strong;
const oldEmphasis = tokenizers.emphasis;
const oldDeletion = tokenizers.deletion;
const oldCodeInline = tokenizers.code;
const oldAtxHeader = tokenizersBlock.atxHeading;
let linkTokenize = tokenizeGenerator('', oldLink, config);
linkTokenize.locator = tokenizers.link.locator;
let strongTokenize = tokenizeGenerator('', oldStrong, config);
strongTokenize.locator = tokenizers.strong.locator;
let emphasisTokenize = tokenizeGenerator('', oldEmphasis, config);
emphasisTokenize.locator = tokenizers.emphasis.locator;
let deleteTokenize = tokenizeGenerator('', oldDeletion, config);
deleteTokenize.locator = tokenizers.deletion.locator;
let codeInlineTokenize = tokenizeGenerator('', oldCodeInline, config);
codeInlineTokenize.locator = tokenizers.code.locator;
tokenizersBlock.atxHeading = tokenizeGenerator( '\n', oldAtxHeader, config );
tokenizers.link = linkTokenize;
tokenizers.strong = strongTokenize;
tokenizers.emphasis = emphasisTokenize;
tokenizers.deletion = deleteTokenize;
tokenizers.code = codeInlineTokenize;
}
function isRemarkParser(parser) {
return Boolean(
parser &&
parser.prototype &&
parser.prototype.inlineTokenizers &&
parser.prototype.inlineTokenizers.link &&
parser.prototype.inlineTokenizers.link.locator
);
}
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