🚀 go-pugleaf

duling@niehs.nih.gov (Dave Duling) writes:


>Hi.  I need to read in ASCII files of the for:

>#.##,"string with , commas and spaces ", etc....

>so the delimiter is a comma, the string is bound by quotes and contains both 
>commas and spaces (but no other quotes).  So I've played around endlessly with
>this but have not found the answer.  I could write a special function but it 
>would be more eloquent with a standard IO call to sscanf()....

>Thanks for any help, Dave Duling@niehs.nih.gov

You're gonna need something along the lines of:
  fscanf(fp, "%[^,],\"%[^\"]\", etc....", f1, f2...
Where:
             "                    - start of format string
              %[  ]               - string format specified as set of
                                    characters
                ^                 - anthing except
                 ,                - a comma
              %[^,]               - all characters up to but not
                                    including the first comma
                   ,              - match (and discard) that comma
                    \"            - match & discard a quote (escaped so
                                    it doesn't terminate the format
                                    string)
                      %[^\"]      - all characters up to but not
                                    including the first quote (escaped so
                                    it doesn't terminate the format
                                    string)
                            \"    - match & discard a quote (escaped so
                                    it doesn't terminate the format
                                    string)
                              ,   - match & discard another comma

Of course all this assumes you know that certain fields are always
quoted.  Otherwise you won't be able to do it with fscanf().

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