Source Files

File Extension

Slint source files use the file extension .slint.[sls.source.file-extension]

Encoding

A .slint source file shall be encoded as UTF-8.[sls.source.encoding.utf8]

A UTF-8 byte order mark (U+FEFF) may appear at the start of the file and is ignored.[sls.source.encoding.bom]

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.[sls.source.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.[sls.source.bare-cr]

Whitespace

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

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

Comments

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

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.[sls.source.comment.block]

Comments are equivalent to whitespace; they have no other semantic effect.[sls.source.comment.whitespace-equivalent]

The token sequences /// and /** are recognized as ordinary line and block comments, respectively, and carry no special meaning.[sls.source.comment.no-doc-comments]

// A line comment.

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

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

slint