Function split_identifier_string

src/sql-parser/src/parser.rs:213–227

Parses a string containing a comma-separated list of identifiers and returns their underlying string values. This is analogous to the `SplitIdentifierString` function in PostgreSQL.

(s: &str)

///
/// This is analogous to the `SplitIdentifierString` function in PostgreSQL.
pub fn split_identifier_string(s: &str) -> Result<Vec<String>, ParserError> {
    // SplitIdentifierString ignores leading and trailing whitespace, and
    // accepts empty input as a 0-length result.
    if s.trim().is_empty() {
        Ok(vec![])
    } else {
        let tokens = lexer::lex(s)?;
        let mut parser = Parser::new(s, tokens);
        let values = parser.parse_comma_separated(Parser::parse_set_variable_value)?;
        Ok(values
            .into_iter()
            .map(|v| v.into_unquoted_value())
            .collect())
    }
}

macro_rules! maybe {
    ($e:expr) => {{