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 213 213: def parse 214: return @result if @result 215: values = [] 216: skip(OPEN_PAREN) 217: if skip(CLOSE_PAREN) 218: values << nil 219: else 220: until eos? 221: if skip(QUOTE_RE) 222: values << scan(QUOTED_RE).gsub(REPLACE_RE, REPLACE_WITH) 223: skip(QUOTE_SEP_RE) 224: else 225: v = scan(UNQUOTED_RE) 226: values << (v unless v.empty?) 227: skip(SEP_RE) 228: end 229: end 230: end 231: values 232: end