Chart block – full CSV format and partial lines

The chart block now supports full CSV format and partial lines.

• Full CSV format means that quoted strings can contain the comma separator.
• But the separator must be a comma.
• Leading and trailing blanks are ignored.

Support commas in legends

Year,"Dataset 1: Lorem ipsum, dolor sit","Dataset 2: id dapibus, dui rhoncus"
  2017,9,12
    2018,5,17
      2019,10,15
      2020,1,19
      2021,14,22
        2022,9,23

Partial lines

The Chart block supports partial lines.

• Missing values are assumed to be null.
• Leading and trailing whitespace is trimmed.

Year,Dataset1,Dataset2,Dataset3
2018,250
 2019 ,250, ,120
   2020  ,,175,125
    2021   ,220,125,75
     2022    ,230,215,90