* First pass at modular wiki indexes
An exploratory experiment
* Fix tests
* Faster checking for existence of index methods
We don't really need to check the type
* Use the index for the has operator
* Fix typo
* Move iterator index methods into indexer modules
Now boot.js doesn't know the core indexers
* Fix up the other iterator index functions
* Fix crash with missing index branch
* Limit the field indexer to values less than 128 characters
* Fallback to the old manual scan if the index method returns null
* Sadly, we can no longe re-use the field indexer to accelerate the `has` operator, because the index now omits tiddlers that have field values longer than the limit
Still need to make the index configuration exposed somehow
* Rearrange tests so that we can test with and without indexers
We also need to expose the list of enabled indexers as a config option
* Test the field indexer with different length fields
So that we test the indexed and non-indexed codepaths
It turns out that the `localeCompare` function used by `compareStateText()` is very, very slow. Replacing it with a straightforward equality test makes one of my test rigs be 10x faster...
Note that this PR reverts the behaviour of match/nomatch to that before #3157. That change was not backwards compatible in that the switch to localeCompare meant that é === e, now it doesn't again.
Approximtely 50% speed improvement in tests opening a storyview with 8,000 entries.
(I've deferred the indentation adjustments until the next commit so that the git diffs are clearer)
Fixes#3875
* Use .json files (instead of .tid) for any tiddler whose fields contain values that can't be stored as a .tid file
* Save application/json tiddlers as .json files
* Refactor most of the file handling as re-usable utilities
First part of fix for #3875
The idea is to do a better of job of distinguishing JSON files that contain tiddlers versus those that contain plain blobs of JSON that should be stored as a single application/json tiddler.
Under Node.js, .json files with an accompanying metafile are always treated as a JSON blob. Without a meta file, those that appear to not contain valid tiddlers are returned as a JSON blob, otherwise the tiddlers within the file are imported.
In the browser, we don't have .meta files so we rely on the valid tiddler check.
If the path was not specified, RSOD error occurred when we wanted to
download the wiki:
Uncaught TypeError: Cannot read property 'substring' of undefined
