9 ms·

I'd still prefer honest-to-goodness string interpolation. Formatting functions with positional placeholders need a linter to be kept (vaguely) maintainable, and

I'd still prefer honest-to-goodness string interpolation. Formatting functions with positional placeholders need a linter to be kept (vaguely) maintainable, and I suspect that formatting functions with named placeholders would be difficult to make acceptably ergonomic or performant in Java.

thangalin 6y ago
> I suspect that formatting functions with named placeholders would be difficult to make acceptably ergonomic or performant in Java yamlp performs string interpolation from YAML files: https://bitbucket.org/djarvis/yamlp/ https://bitbucket.org/djarvis/yamlp/ I reuse my library in my text editor: https://github.com/DaveJarvis/scrivenvar/ https://github.com/DaveJarvis/scrivenvar/ The text editor can interpolate strings in a variety of contexts (such as Markdown, R Markdown, XML, and R XML documents): https://www.youtube.com/watch?v=u_dFd6UhdV8 https://www.youtube.com/watch?v=u_dFd6UhdV8 As far as I can tell, there is no performance degradation from the recursive interpolation; the editor reads, interpolates key/value pairs, and substitutes the resulting values into R Markdown documents riddled with up to a thousand simple formulas in about 600 milliseconds (on my desktop computer). Also, the editor provides a way to maintain the interpolated variables in a tree-like view: https://github.com/DaveJarvis/scrivenvar/blob/master/README.md#screenshots https://github.com/DaveJarvis/scrivenvar/blob/master/README.... The substituted values appear in the preview pane in their final form. This is all real-time and pure Java.