Markdown | : arrow_down : A state-machine-based Markdown parser
kandi X-RAY | Markdown Summary
kandi X-RAY | Markdown Summary
This is yet another Markdown implementation, but this time written as a state machine rather than a pile of regexes like I normally see. (It still uses regexes to recognize and extract things, because they vastly simplify things, but its overall operation is DFA-based.). This approach has the wonderful benefit of making the parser easy to modify. You can trivially add new features of your own, and turn them on or off in different parsing modes.
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Top functions reviewed by kandi - BETA
- Creates a document from a set of lines .
- Removes the characters from the raw text .
- Converts raw text to an array of lines
- Process nestables .
- Returns the table as HTML
- Finish the document .
- Appends a line to the collection
- Adds a new line to the queue
Markdown Key Features
Markdown Examples and Code Snippets
Community Discussions
Trending Discussions on Markdown
QUESTION
I need to find the sizes/metadata of externally hosted images in a document (e.g., markdown documents that have image tags in it), but need to do it without actually downloading the image.
Is there any way to do this easily on NodeJS/ExpressJs using javascript? Some of the solutions are many years old and not sure if there are better methods now.
...ANSWER
Answered 2021-Jun-15 at 01:47You can do what was suggested in comments by only grabbing the HEAD
instead of using a GET
when you call the image.
Using got or whatever you like (http, axios, etc) you set the method
to HEAD
and look for content-length
.
My example program that grabs a twitter favicon, headers only, looks like this:
QUESTION
I can't seem to figure out if this is possible. Still trying to learn the tool - I've figured out how to run it on an input file and generate outputs, but would it be possible for it to, for example, take a text as an input and generate an output file.
For e.g., instead of
pandoc -i somefile.md -o -f markdown -t docx output.md
could I do
pandoc "# hello there! \n\nI went to the market" -o -f markdown -t docx output.md
Am I missing some option in the doc?
...ANSWER
Answered 2021-Jun-14 at 11:51You can pass text input to pandoc. I did so by using the pipe operator:
QUESTION
I want to use Python to read and write YAML frontmatter in markdown files. I have come across the ruamel.yaml package but am having trouble understanding how to use it for this purpose.
If I have a markdown file:
...ANSWER
Answered 2021-Jun-14 at 11:35When you have multiple YAML documents in one file these are separated with a line consisting of
three dashes, or starting with three dashes followed by a space.
Most YAML parsers, including ruamel.yaml
either expect a single document file (when using YAML().load()
)
or a multi-document file (when using YAML().load_all()
).
The method .load()
returns the single data structure, and complains if there seems to be more than one
document (i.e. when it encounters the second ---
in your file). The
.load_all()
method can handle one or more YAML documents, but always returns
an iterator.
Your input happens to be a valid multi-document YAML file but the markdown part often makes this not be the case. It easily could
always have been valid YAML by just changing the second ---
into --- |
thereby making the
markdown part a (multi-line) literal scalar string. I have no idea why the
designers of such YAML frontmatter formats didn't specify that, it might have to
do that some parsers (like PyYAML) fail to parse such non-indented literal scalar
strings at the root level correctly, although examples of those are in the YAML
specification.
In your example the markdown part is so simple that it is valid YAML without
having to specify the |
for literal scalar string. So you could use
.load_all()
on this input. But just adding e.g. a line
starting with a dash to the markdown section, will result in an invalid YAML
document, so you if you use .load_all()
, you have to make sure you
do not iterate so far as to parse the second document:
QUESTION
I am trying to style or format the hover message with MarkdownString
but it always resulted in empty space or escaped everything but I found out that you can use span
to style it but you can only apply color
and background-color
with this PR.
Right now, it's ugly as plain text can be, and even using table markdown is not working. Is there a way to improve this?
I'm writing it as follow:
...ANSWER
Answered 2021-Jun-13 at 15:11Here are a few options that work for me to do styling, markdown tables, code blocks, etc.:
QUESTION
My client wants to convert markdown text to word and we'll be using Pandoc. However, we want to control malicious submissions (e.g., a Markdown doc with 1000 externally hosted images each being 10 MB) that can stress/break the server when attempting to produce the output.
options are to regex the image patterns in the Markdown and test their size (or even limit the number) or even disallow external images entirely, but I wonder if there's a way to abort Pandoc if the produced docx exceeds a certain size?
Or is there a simple way to get the images and test their size?
...ANSWER
Answered 2021-Jun-12 at 07:41Pandoc normally fetches the images while writing the output file, but you can take control of that by using a Lua filter to fetch the images yourself. This allows to stop fetching as soon as the combined size of the images becomes too large.
QUESTION
I have a table that has some rows with normal JSON and some with escaped values in the JSON field (backslashes)
id obj 1 {"is_from_shopping_bag":true,"products":[{"price":{"amount":"18.00","currency":"USD","offset":100,"amount_with_offset":"1800"},"product_id":"1234","quantity":1}],"source":"cart"} 2 {"is_from_shopping_bag":"","products":"[{\ "product_id\ ":\ "2345\ ",\ "price\ ":{\ "currency\ ":\ "USD\ ",\ "amount\ ":\ "140.00\ ",\ "offset\ ":100},\ "quantity\ ":1}]"}(Note: I needed to include a space after the backslashes in the above table so that they would show up in the github generated markdown table -- my actual table does not include those spaces between the backslash and the quote character)
I am doing a sql query in Hive to get the 'currency' field.
Currently I can run
...ANSWER
Answered 2021-Jun-11 at 20:54Replace \"
with "
using regexp_replace
like this:
QUESTION
I have been running a model for the past 24h (optimization of Neural Network parameters by Gaussian process). Tonight, haven't waked up properly form, I hand accidentally switched the cell to markdown and the layout disappeared. Anyway, the code is still running but I don't if the rest of the cells would execute correctly. I like you to tell me if the remaining cells would run as attended or if I should stop and start the whole notebook over again?
...ANSWER
Answered 2021-Jun-11 at 07:57this morning the process was over and the code ran perfectly well. So, switching the jupyter notebook cell from code to markdown does not affect the remaining cells and their execution.
QUESTION
I'm trying to create a Unet for semantic segmentation.. I've been following this repo that has the code from this article. I'm using the scene parsing 150 dataset instead of the one used in the article. My data is not one-hot encoded so I'm trying to use sparse_categorical_crossentropy for loss.
This is the shape of my data. x is RGB images, y is 1 channel annotations of categories (151 categories). Yes, I'm using just 10 samples of each, just for testing, this will be changed when I can actually get it to start training.
...ANSWER
Answered 2021-Jun-10 at 13:36QUESTION
I often create fairly large dashboards with R Markdown. Every time I create a new output (e.g., a new chunk containing an additional table or chart), I want to check for any display issues. My current workflow for doing this is slow for two reasons:
- I want to test in the browser, but there doesn't seem to be an option to knit a document directly to the browser, so I have to knit to the default window and then click "Open in Browser" (see also here When knitting RMarkdown to HTML with RStudio, is it possible to view directly in browser, instead than previewing in a window?);
- I do not know of a way to only knit a subset of chunks. For example, is there a way to knit in "test" mode, whereby only certain marked chunks are knitted?
Thanks for any advice.
...ANSWER
Answered 2021-Jun-10 at 11:27To answer your workflow questions
rmarkdown::run("filename.Rmd", shiny_args = list(launch.browser = TRUE))
is what you can use, which uses a shiny argument, which will render your Rmarkdown file and send it directly to the browser when ran. answer found here
- in your chunks, you want the
eval=FALSE
/eval=TRUE
which tells R to evaluate the chunk or not. You can also useecho=FALSE
to hide code in the chunk from displaying. Rstudio has added a GUI option to easily select these options with a click of a mouse
Where only the selected chunk I chose to knit, was actually knitted(1 plot instead of 2.
QUESTION
If I use \FloatBarrier to maintain the desired order of the document, I get the following error and can't knit the PDF (specifically happens with PDF). It worked probably six months ago.
...ANSWER
Answered 2021-Jun-10 at 09:21You have to load the placeins
package if you want to use one of its macros:
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