trying to implement ldita-bootstrap.lunr in the bootstrap ditaot plugin but facing some error

[Gurushesh-Metapercept]

[gen-index-json] Result: 1
[gen-index-json] node:internal/modules/cjs/loader:1325
[gen-index-json] throw err;
[gen-index-json] ^
[gen-index-json]
[gen-index-json] SyntaxError: C:\Users\Admin\AppData\Local\Temp\temp20231019184255754\lunr.json: Unexpected token G in JSON at position 38
[gen-index-json] at parse ()
[gen-index-json] at Module._extensions..json (node:internal/modules/cjs/loader:1322:39)
[gen-index-json] at Module.load (node:internal/modules/cjs/loader:1117:32)
[gen-index-json] at Module._load (node:internal/modules/cjs/loader:958:12)
[gen-index-json] at Module.require (node:internal/modules/cjs/loader:1141:19)
[gen-index-json] at require (node:internal/modules/cjs/helpers:110:18)
[gen-index-json] at Object. (C:\Users\Admin\AppData\Local\Temp\temp20231019184255754\null10407635299677372326:10:19)
[gen-index-json] at Module._compile (node:internal/modules/cjs/loader:1254:14)
[gen-index-json] at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
[gen-index-json] at Module.load (node:internal/modules/cjs/loader:1117:32)
[gen-index-json]
[gen-index-json] Node.js v18.15.0
Error: Lunr.js failed to generate search index

[lakokkonen]

Hi Gurushesh,

Did you figure this out already? I have encountered the same issue, and been trying to debug it.

I suspect this has something to do with the file paths created by the plugin. They contain a mix of forward and backslashes, and when a backslash is combined with a certain letter (G in your case, for me it was S), the JSON parsing fails and the index is not created. It's a case of JSON escape characters.

Here's a screenshot of the invalid JSON file in my test case. You can see that all first level file paths are correct, but more than one level deep all the slashes are backslashes, which the JSON parser tries to interpret as escape characters:

If you want to confirm this, try building a simple test map with topics in only one folder. The build should work ok.

[jason-fox]

I suspect this is a combination of two things:

1. Building an index on Windows.
2. Building an index with deeply embedded folders.

That would leave JSON \ within the link elements, which would be interpreted as escape codes as @lakokkonen described.

Would a simple ANT <replace> and/or XSL replace() be sufficient to fix this? See: develop...jason-fox:dita-bootstrap.lunr:feature/slash

dita uninstall dita-bootstrap.lunr
dita install https://github.com/jason-fox/dita-bootstrap.lunr/archive/feature/slash.zip

Since I don't run on Windows, I can't reproduce this test case.

[lakokkonen]

With the fix @jason-fox provided the build doesn't fail.

However, the file paths in preview.json still contain the \, so the JSON contains errors:

In this case, the search is unable to find the topic with the corrupted link.

[jason-fox]

That just requires the same fix to be applied to the other file. see here - try pulling again.

[lakokkonen]

Works like a charm now. The JSON is valid and the search is working.