Source Files

File Extension

Slint source files use the file extension .slint.

Encoding

A .slint source file shall be encoded as UTF-8.

A UTF-8 byte order mark (U+FEFF) may appear at the start of the file and is ignored.

Line Terminators

The compiler recognizes the character U+000A (LINE FEED) and the two-character sequence U+000D U+000A (CARRIAGE RETURN, LINE FEED) as equivalent line terminators.

A U+000D (CARRIAGE RETURN) that is not immediately followed by U+000A is not a line terminator. Source files should not contain bare carriage returns.

Whitespace

The whitespace characters are U+0020 (SPACE), U+0009 (CHARACTER TABULATION), and the line terminators defined in Line Terminators.

Whitespace separates tokens but is otherwise insignificant; any sequence of one or more whitespace characters is equivalent to a single space.

Comments

A line comment begins with two consecutive solidus characters // and extends to the next line terminator.

A block comment is delimited by /* and */. Block comments nest: an inner /* inside a block comment increments the nesting depth, and the comment terminates only when a matching */ returns the nesting depth to zero.

Comments are equivalent to whitespace; they have no other semantic effect.

The token sequences /// and /** are recognized as ordinary line and block comments, respectively, and carry no special meaning.

// A line comment.

/* A block comment
   that spans multiple lines. */

/* Block comments /* may be nested */ like this. */

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