class BootProperties

Extract multiple properties at once. This is not only a shorthand for

calling GetProperty N times conveniently, but is more efficient. e.g.

```

auto [a, b, c] = bp.GetProperties("a", "b", "c");

if (a) { ... }

if (b) { ... }

if (c) { ... }

```

Extract multiple properties at once. This is not only a shorthand for

calling GetProperty N times conveniently, but is more efficient. e.g.

```

auto [a, b, c] = bp.GetProperties("a", "b", "c");

if (a) { ... }

if (b) { ... }

if (c) { ... }

```

Extract multiple properties at once. This is not only a shorthand for

calling GetProperty N times conveniently, but is more efficient. e.g.

```

auto [a, b, c] = bp.GetProperties("a", "b", "c");

if (a) { ... }

if (b) { ... }

if (c) { ... }

```

Extract multiple properties at once. This is not only a shorthand for

calling GetProperty N times conveniently, but is more efficient. e.g.

```

auto [a, b, c] = bp.GetProperties("a", "b", "c");

if (a) { ... }

if (b) { ... }

if (c) { ... }

```

This is the same, except it yields for each key just a std::string_view

that's "" for a missing property, not std::optional

<std

::string_view> that

distinguishes std::nullopt (missing) from "" (present with empty value).

This is the same, except it yields for each key just a std::string_view

that's "" for a missing property, not std::optional

<std

::string_view> that

distinguishes std::nullopt (missing) from "" (present with empty value).

This is the same, except it yields for each key just a std::string_view

that's "" for a missing property, not std::optional

<std

::string_view> that

distinguishes std::nullopt (missing) from "" (present with empty value).

This is the same, except it yields for each key just a std::string_view

that's "" for a missing property, not std::optional

<std

::string_view> that

distinguishes std::nullopt (missing) from "" (present with empty value).

Invokes a callback for all matching property definitions/appends for a key.

BootConfig is small enough that it's worthwhile to parse the entirety for

each key we care about to keep the API for each given item

straightforward. We could refactor this to scan once, but the ergonomics

change to Item classes wouldn't be worth it.

Invokes a callback for all matching property definitions/appends for a key.

BootConfig is small enough that it's worthwhile to parse the entirety for

each key we care about to keep the API for each given item

straightforward. We could refactor this to scan once, but the ergonomics

change to Item classes wouldn't be worth it.

Extracts a property value (e.g. "kernel.param", "driver.option").

Precedence: Bootconfig first, then command line.

Extracts a property value (e.g. "kernel.param", "driver.option").

Precedence: Bootconfig first, then command line.

Joins all values of a property with ',' into buffer and returns a view of

the result. Precedence is the same as GetProperty(), and a define or

override resets the value.

BootConfig may contain unquoted values like "key:=a,b,c", which BootConfig

syntax parses as an array of values. Joining the elements recovers the full

value ("a,b,c").

Values that do not fit in buffer are truncated.

Joins all values of a property with ',' into buffer and returns a view of

the result. Precedence is the same as GetProperty(), and a define or

override resets the value.

BootConfig may contain unquoted values like "key:=a,b,c", which BootConfig

syntax parses as an array of values. Joining the elements recovers the full

value ("a,b,c").

Values that do not fit in buffer are truncated.

Joins all values of a property with ',' into buffer and returns a view of

the result. Precedence is the same as GetProperty(), and a define or

override resets the value.

BootConfig may contain unquoted values like "key:=a,b,c", which BootConfig

syntax parses as an array of values. Joining the elements recovers the full

value ("a,b,c").

Values that do not fit in buffer are truncated.

Joins all values of a property with ',' into buffer and returns a view of

the result. Precedence is the same as GetProperty(), and a define or

override resets the value.

BootConfig may contain unquoted values like "key:=a,b,c", which BootConfig

syntax parses as an array of values. Joining the elements recovers the full

value ("a,b,c").

Values that do not fit in buffer are truncated.