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'use strict';
const parseAttr = require('md-attr-parser');
const START = '[__';
const END = '__]';
/* Function used to locate the start of a line input filed
* Used by remark
*/
function locator(value, fromIndex) {
const index = value.indexOf(START, fromIndex);
return index;
}
/* Funtion which is exported */
function plugin() {
/* Verifie if it's the syntax of a line input and return a line input node */
function inlineTokenizer(eat, value) {
if (!value.startsWith(START)) {
return;
}
let subvalue = '';
let index = START.length;
const {length} = value;
/* Try to locale the end of the line input */
while (!value.startsWith(END, index) && index < length) {
subvalue += value.charAt(index);
if (value.charAt(index) === '\n') {
return true;
}
index++;
}
let letsEat = '';
let prop = { /* key: undefined {} class: undefined [] id: undefined */};
/* Parse the attributes if any with md-attr-parser */
if (value.charAt(index + END.length) === '{') {
const res = parseAttr(value, index + END.length);
letsEat = res.eaten;
({prop} = res);
}
/* Allow some other kind of input */
if (prop.type !== 'password') {
prop.type = 'text';
}
/* Underscores in the placeholder become whitespaces */
prop.placeholder = subvalue.replace(/^_*/g, '').replace(/_*$/g, '') || undefined;
if (index < length) {
return eat(START + subvalue + END + letsEat)({
type: 'line-input',
children: [],
data: {
hName: 'input',
hProperties: prop,
},
});
}
return true;
}
inlineTokenizer.locator = locator;
const {Parser} = this;
// Inject inlineTokenizer
const {inlineTokenizers} = Parser.prototype;
const {inlineMethods} = Parser.prototype;
inlineTokenizers.input = inlineTokenizer;
inlineMethods.splice(inlineMethods.indexOf('url'), 0, 'input');
const {Compiler} = this;
// Stringify
if (Compiler) {
const {visitors} = Compiler.prototype;
visitors.lineinput = function (node) {
return `[__${this.all(node).join('')}__]`;
};
}
}
module.exports = plugin;
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