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manual: use subheadings for primitive types

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this gives us HTML anchors for each of them
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Valentin Gagarin 2022-07-28 17:09:53 +02:00
parent 86fcd4f692
commit 3063e5b94c
1 changed files with 149 additions and 139 deletions
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20
doc/manual/src/expressions/language-values.md
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@ -4,7 +4,9 @@
Nix has the following basic data types: Nix has the following basic data types:
- *Strings* can be written in three ways. ### Strings
*Strings* can be written in three ways.
The most common way is to enclose the string between double quotes, The most common way is to enclose the string between double quotes,
e.g., `"foo bar"`. Strings can span multiple lines. The special e.g., `"foo bar"`. Strings can span multiple lines. The special
@ -112,14 +114,18 @@ Nix has the following basic data types:
`"http://example.org/foo.tar.bz2"` can also be written as `"http://example.org/foo.tar.bz2"` can also be written as
`http://example.org/foo.tar.bz2`. `http://example.org/foo.tar.bz2`.
- Numbers, which can be *integers* (like `123`) or *floating point* ### Numbers
Numbers, which can be *integers* (like `123`) or *floating point*
(like `123.43` or `.27e13`). (like `123.43` or `.27e13`).
Numbers are type-compatible: pure integer operations will always Numbers are type-compatible: pure integer operations will always
return integers, whereas any operation involving at least one return integers, whereas any operation involving at least one
floating point number will have a floating point number as a result. floating point number will have a floating point number as a result.
- *Paths*, e.g., `/bin/sh` or `./builder.sh`. A path must contain at ### Paths
*Paths*, e.g., `/bin/sh` or `./builder.sh`. A path must contain at
least one slash to be recognised as such. For instance, `builder.sh` least one slash to be recognised as such. For instance, `builder.sh`
is not a path: it's parsed as an expression that selects the is not a path: it's parsed as an expression that selects the
attribute `sh` from the variable `builder`. If the file name is attribute `sh` from the variable `builder`. If the file name is
@ -146,9 +152,13 @@ Nix has the following basic data types:
recognized as a path. `a.${foo}/b.${bar}` is a syntactically valid division recognized as a path. `a.${foo}/b.${bar}` is a syntactically valid division
operation. `./a.${foo}/b.${bar}` is a path. operation. `./a.${foo}/b.${bar}` is a path.
- *Booleans* with values `true` and `false`. ### Booleans
- The null value, denoted as `null`. *Booleans* with values `true` and `false`.
### Null
The null value, denoted as `null`.
## Lists ## Lists