Goldmark v1.8 reports source positions in render hooks.
Use this to build a source map that translates Goldmark positions back to
the original content source.
Now all render hooks' context object implenent the `BaseContext` interface:
```go
type BaseContext interface {
Position() Position
Page() any
PageInner() any
Ordinal() int
}
```
Closes#14663
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Make throwOnError=true the new default
* Handle JS errors as part of the RPC request/response flow
* Return a new Result type with .Err on it
This enables constructs on the form:
```handlebars
{{ with transform.ToMath "c = \\foo{a^2 + b^2}" }}
{{ with .Err }}
{{ warnf "error: %s" . }}
{{ else }}
{{ . }}
{{ end }}
{{ end }}
```
Note that the new `Result` type behaves like `template.HTML` (or a string if needed) when printed, but it will panic if in a error state.
Closes#12748
None of these are useful as plain strings in the templates, which forces the users to do `transform.Plainify "foo" | safeHTML`.
If people have trust issues with the output of these functions, they need to just stop using them.
Closes#8732
While very useful on its own (and combined with the passthrough render hooks), this also serves as a proof of concept of using WASI (WebAssembly System Interface) modules in Hugo.
This will be marked _experimental_ in the documentation. Not because it will be removed or changed in a dramatic way, but we need to think a little more how to best set up/configure similar services, define where these WASM files gets stored, maybe we can allow user provided WASM files plugins via Hugo Modules mounts etc.
See these issues for more context:
* https://github.com/gohugoio/hugo/issues/12736
* https://github.com/gohugoio/hugo/issues/12737
See #11927
Bjørn Erik Pedersen