pearley | new implementation of the Earley parsing algorithm | Parser library
kandi X-RAY | pearley Summary
kandi X-RAY | pearley Summary
Pearley is a shiny new implementation of the Earley parsing algorithm in Javascript. Pearley can parse any context-free grammar, including left-recursive, right-recursive, and ambiguous grammars, and grammars containing epsilon rules (the null/empty rule). This demo shows how Pearley can parse math expressions with the +, -, *, and / operators, parentheses, and numbers of arbitrary length. To run it, you must include tokenizer.js from my ParserGen repo to tokenize the strings. You can also click the link to see the demo on jsFiddle. Check the console for output. First line of output is the tokenized string, second line of output is the list of tokens parsed by Pearley, and the last line of output is the table of state sets. This demo lets you parse a string containing balanced pairs of parentheses, meaning n open parentheses followed by n close parentheses.
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QUESTION
I am writing a search menu that searches for and shows on the page all matching substrings in a string on pure js. I made the search on page, but I don't know how to display the results in the search drop-down menu with the number of results like on picture use only js. My code and picture below:
...ANSWER
Answered 2020-Oct-26 at 10:28Maybe like this:
QUESTION
Continuation of my question. There is a search block, a string is searched among the "p" blocks on the page, the number of blocks is displayed.
I cannot make it so that the blocks that contain the search string are reflected in the drop-down list as in the picture.
Question:
how to make a drop-down list with "p" blocks that contain the desired string in pure js.
An example in the picture, the available code below:
...ANSWER
Answered 2020-Oct-26 at 15:12Inside the p
loop, you can check if each p
content contains the inputed
text using String.prototype.match
and if no matches, update the style to hide the p
tag as follows.
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