Class | Sequel::Postgres::PGRow::Splitter |
In: |
lib/sequel/extensions/pg_row.rb
|
Parent: | StringScanner |
This parser-like class splits the PostgreSQL row-valued/composite type output string format into an array of strings. Note this class makes no attempt to handle all input formats that PostgreSQL will accept, it only handles the output format that PostgreSQL uses.
OPEN_PAREN | = | /\(/.freeze |
CLOSE_PAREN | = | /\)/.freeze |
UNQUOTED_RE | = | /[^,)]*/.freeze |
SEP_RE | = | /[,)]/.freeze |
QUOTE_RE | = | /"/.freeze |
QUOTE_SEP_RE | = | /"[,)]/.freeze |
QUOTED_RE | = | /(\\.|""|[^"])*/.freeze |
REPLACE_RE | = | /\\(.)|"(")/.freeze |
REPLACE_WITH | = | '\1\2'.freeze |
Split the stored string into an array of strings, handling the different types of quoting.
# File lib/sequel/extensions/pg_row.rb, line 232 232: def parse 233: return @result if @result 234: values = [] 235: skip(OPEN_PAREN) 236: if skip(CLOSE_PAREN) 237: values << nil 238: else 239: until eos? 240: if skip(QUOTE_RE) 241: values << scan(QUOTED_RE).gsub(REPLACE_RE, REPLACE_WITH) 242: skip(QUOTE_SEP_RE) 243: else 244: v = scan(UNQUOTED_RE) 245: values << (v unless v.empty?) 246: skip(SEP_RE) 247: end 248: end 249: end 250: values 251: end