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Diffstat (limited to 'doc/manual/src/expressions/language-constructs.md')
| -rw-r--r-- | doc/manual/src/expressions/language-constructs.md | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/doc/manual/src/expressions/language-constructs.md b/doc/manual/src/expressions/language-constructs.md index 20d003348..2699d675f 100644 --- a/doc/manual/src/expressions/language-constructs.md +++ b/doc/manual/src/expressions/language-constructs.md @@ -147,7 +147,7 @@ three kinds of patterns: It is possible to provide *default values* for attributes, in which case they are allowed to be missing. A default value is specified by writing `name ? - e`, where e is an arbitrary expression. For example, + e`, where *e* is an arbitrary expression. For example, { x, y ? "foo", z ? "bar" }: z + y + x @@ -201,7 +201,7 @@ Conditionals look like this: if e1 then e2 else e3 -where e1 is an expression that should evaluate to a Boolean value +where *e1* is an expression that should evaluate to a Boolean value (`true` or `false`). ## Assertions @@ -211,9 +211,9 @@ between features and dependencies hold. They look like this: assert e1; e2 -where e1 is an expression that should evaluate to a Boolean value. If it -evaluates to `true`, e2 is returned; otherwise expression evaluation is -aborted and a backtrace is printed. +where *e1* is an expression that should evaluate to a Boolean value. If +it evaluates to `true`, *e2* is returned; otherwise expression +evaluation is aborted and a backtrace is printed. Here is a Nix expression for the Subversion package that shows how assertions can be used:. @@ -275,8 +275,8 @@ A *with-expression*, with e1; e2 -introduces the set e1 into the lexical scope of the expression e2. For -instance, +introduces the set *e1* into the lexical scope of the expression *e2*. +For instance, let as = { x = "foo"; y = "bar"; }; in with as; x + y |