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add documentation for path antiquotations

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Taeer Bar-Yam 2021-08-31 08:17:17 -04:00
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7
doc/manual/src/expressions/language-values.md
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@ -139,6 +139,13 @@ Nix has the following basic data types:
environment variable `NIX_PATH` will be searched for the given file
or directory name.
Antiquotation is supported in any paths except those in angle brackets.
`./${foo}-${bar}.nix` is a more convenient way of writing
`./. + "/" + foo + "-" + bar + ".nix"` or `./. + "/${foo}-${bar}.nix"`. At
least one slash must appear *before* any antiquotations for this to be
recognized as a path. `a.${foo}/b.${bar}` is a syntactically valid division
operation. `./a.${foo}/b.${bar}` is a path.
- *Booleans* with values `true` and `false`.
- The null value, denoted as `null`.