Fork of sax@1.2.4 for Joplin.

Patch:

diff --git a/node_modules/sax/lib/sax.js b/node_modules/sax/lib/sax.js
index 795d607..ccad5d8 100644
--- a/node_modules/sax/lib/sax.js
+++ b/node_modules/sax/lib/sax.js
@@ -1040,6 +1040,13 @@
               parser.textNode += c
             }
           }
+
+          // Sax is kind of buggy when handling large text node. It has a function to check that
+          // the buffer doesn't run out of space but it doesn't seem to call it for text node.
+          // The result is that parser.textNode reaches 1GB and then the app crashes. So here
+          // we call checkBufferLength to make sure the buffer is cleared and the "text" event
+          // emitted so that the caller can handle memory properly.
+          checkBufferLength(parser);
           continue
 
         case S.SCRIPT:

sax js

A sax-style parser for XML and HTML.

Designed with node in mind, but should work fine in the browser or other CommonJS implementations.

What This Is

• A very simple tool to parse through an XML string.
• A stepping stone to a streaming HTML parser.
• A handy way to deal with RSS and other mostly-ok-but-kinda-broken XML docs.

What This Is (probably) Not

• An HTML Parser - That's a fine goal, but this isn't it. It's just XML.
• A DOM Builder - You can use it to build an object model out of XML, but it doesn't do that out of the box.
• XSLT - No DOM = no querying.
• 100% Compliant with (some other SAX implementation) - Most SAX implementations are in Java and do a lot more than this does.
• An XML Validator - It does a little validation when in strict mode, but not much.
• A Schema-Aware XSD Thing - Schemas are an exercise in fetishistic masochism.
• A DTD-aware Thing - Fetching DTDs is a much bigger job.

Regarding `Hello, world!').close();

// stream usage // takes the same options as the parser var saxStream = require("sax").createStream(strict, options) saxStream.on("error", function (e) { // unhandled errors will throw, since this is a proper node // event emitter. console.error("error!", e) // clear the error this._parser.error = null this._parser.resume() }) saxStream.on("opentag", function (node) { // same object as above }) // pipe is supported, and it's readable/writable // same chunks coming in also go out. fs.createReadStream("file.xml") .pipe(saxStream) .pipe(fs.createWriteStream("file-copy.xml"))

## Arguments

Pass the following arguments to the parser function.  All are optional.

`strict` - Boolean. Whether or not to be a jerk. Default: `false`.

`opt` - Object bag of settings regarding string formatting.  All default to `false`.

Settings supported:

* `trim` - Boolean. Whether or not to trim text and comment nodes.
* `normalize` - Boolean. If true, then turn any whitespace into a single
  space.
* `lowercase` - Boolean. If true, then lowercase tag names and attribute names
  in loose mode, rather than uppercasing them.
* `xmlns` - Boolean. If true, then namespaces are supported.
* `position` - Boolean. If false, then don't track line/col/position.
* `strictEntities` - Boolean. If true, only parse [predefined XML
  entities](https://www.w3.org/TR/REC-xml/#sec-predefined-ent)
  (`&`, `'`, `>`, `<`, and `"`)

## Methods

`write` - Write bytes onto the stream. You don't have to do this all at
once. You can keep writing as much as you want.

`close` - Close the stream. Once closed, no more data may be written until
it is done processing the buffer, which is signaled by the `end` event.

`resume` - To gracefully handle errors, assign a listener to the `error`
event. Then, when the error is taken care of, you can call `resume` to
continue parsing. Otherwise, the parser will not continue while in an error
state.

## Members

At all times, the parser object will have the following members:

`line`, `column`, `position` - Indications of the position in the XML
document where the parser currently is looking.

`startTagPosition` - Indicates the position where the current tag starts.

`closed` - Boolean indicating whether or not the parser can be written to.
If it's `true`, then wait for the `ready` event to write again.

`strict` - Boolean indicating whether or not the parser is a jerk.

`opt` - Any options passed into the constructor.

`tag` - The current tag being dealt with.

And a bunch of other stuff that you probably shouldn't touch.

## Events

All events emit with a single argument. To listen to an event, assign a
function to `on`. Functions get executed in the this-context of
the parser object. The list of supported events are also in the exported
`EVENTS` array.

When using the stream interface, assign handlers using the EventEmitter
`on` function in the normal fashion.

`error` - Indication that something bad happened. The error will be hanging
out on `parser.error`, and must be deleted before parsing can continue. By
listening to this event, you can keep an eye on that kind of stuff. Note:
this happens *much* more in strict mode. Argument: instance of `Error`.

`text` - Text node. Argument: string of text.

`doctype` - The ``. Argument:
object with `name` and `body` members. Attributes are not parsed, as
processing instructions have implementation dependent semantics.

`sgmldeclaration` - Random SGML declarations. Stuff like ``
would trigger this kind of event. This is a weird thing to support, so it
might go away at some point. SAX isn't intended to be used to parse SGML,
after all.

`opentagstart` - Emitted immediately when the tag name is available,
but before any attributes are encountered.  Argument: object with a
`name` field and an empty `attributes` set.  Note that this is the
same object that will later be emitted in the `opentag` event.

`opentag` - An opening tag. Argument: object with `name` and `attributes`.
In non-strict mode, tag names are uppercased, unless the `lowercase`
option is set.  If the `xmlns` option is set, then it will contain
namespace binding information on the `ns` member, and will have a
`local`, `prefix`, and `uri` member.

`closetag` - A closing tag. In loose mode, tags are auto-closed if their
parent closes. In strict mode, well-formedness is enforced. Note that
self-closing tags will have `closeTag` emitted immediately after `openTag`.
Argument: tag name.

`attribute` - An attribute node.  Argument: object with `name` and `value`.
In non-strict mode, attribute names are uppercased, unless the `lowercase`
option is set.  If the `xmlns` option is set, it will also contains namespace
information.

`comment` - A comment node.  Argument: the string of the comment.

`opencdata` - The opening tag of a ``) of a `` tags trigger a `"script"`
event, and their contents are not checked for special xml characters.
If you pass `noscript: true`, then this behavior is suppressed.

## Reporting Problems

It's best to write a failing test if you find an issue.  I will always
accept pull requests with failing tests if they demonstrate intended
behavior, but it is very hard to figure out what issue you're describing
without a test.  Writing a test is also the best way for you yourself
to figure out if you really understand the issue you think you have with
sax-js.