Error when using local files on Windows

[jakubklimek]

When trying to work with CSV on the Web (rdf-tabular) on Windows, I get an error connected to how Windows paths are processed:

> rdf validate --input-format tabular 1.csv-metadata.json

C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:335:in `rescue in open_file': No such file or directory @ rb_sysopen - C%3A/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/1.csv (RDF::ReaderError)

Note that the file C:\Users\jakub\Downloads\rubyinstaller-3.2.2-1-x64\rubyinstaller-3.2.2-1-x64\bin\1.csv actually exists, but also note the path in the error starting with C%3A.

This may be related to #435 and may be reproduced with the same files as in #435 (comment)

Version info:

>ruby -v
ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x64-mingw-ucrt]
>rdf --version
3.3.1

This definitely worked a year ago - and works fine with these versions:

gem install rdf:3.2.7 rdf-xsd:3.2.1 rdf-vocab:3.2.7 rdf-tabular:3.2.1

Full error:

C:\Users\jakub\Downloads\rubyinstaller-3.2.2-1-x64\rubyinstaller-3.2.2-1-x64\bin>rdf validate --input-format tabular 1.csv-metadata.json
C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:335:in `rescue in open_file': No such file or directory @ rb_sysopen - C%3A/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/1.csv (RDF::ReaderError)
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:317:in `open_file'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:221:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:218:in `block (2 levels) in each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1347:in `block in each_table'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1346:in `each'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1346:in `each_table'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:208:in `block in each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:264:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:198:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:177:in `each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:554:in `block in exec'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:157:in `block (2 levels) in initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:264:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:198:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:319:in `instance_eval'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:319:in `initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:76:in `initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:244:in `new'        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:244:in `block in open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:340:in `open_file'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:221:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:212:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:708:in `block in parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:707:in `each'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:707:in `parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:553:in `exec'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/bin/rdf:13:in `<top (required)>'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/rdf:32:in `load'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/rdf:32:in `<main>'
C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:335:in `rescue in open_file': No such file or directory @ rb_sysopen - C%3A/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/1.csv (IOError)
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:317:in `open_file'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:221:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:218:in `block (2 levels) in each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1347:in `block in each_table'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1346:in `each'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1346:in `each_table'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:208:in `block in each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:264:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:198:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:177:in `each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:554:in `block in exec'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:157:in `block (2 levels) in initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:264:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:198:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:319:in `instance_eval'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:319:in `initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:76:in `initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:244:in `new'        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:244:in `block in open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:340:in `open_file'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:221:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:212:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:708:in `block in parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:707:in `each'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:707:in `parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:553:in `exec'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/bin/rdf:13:in `<top (required)>'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/rdf:32:in `load'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/rdf:32:in `<main>'
C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:322:in `initialize': No such file or directory @ rb_sysopen - C%3A/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/1.csv (Errno::ENOENT)
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:322:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:322:in `open_file'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:221:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:218:in `block (2 levels) in each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1347:in `block in each_table'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1346:in `each'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/metadata.rb:1346:in `each_table'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:208:in `block in each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:264:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:198:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:177:in `each_statement'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:554:in `block in exec'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:157:in `block (2 levels) in initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:264:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/logger.rb:198:in `log_depth'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:319:in `instance_eval'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:319:in `initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-tabular-3.3.0/lib/rdf/tabular/reader.rb:76:in `initialize'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:244:in `new'        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:244:in `block in open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/util/file.rb:340:in `open_file'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:221:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/reader.rb:212:in `open'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:708:in `block in parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:707:in `each'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:707:in `parse'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/lib/rdf/cli.rb:553:in `exec'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/lib/ruby/gems/3.2.0/gems/rdf-3.3.1/bin/rdf:13:in `<top (required)>'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/rdf:32:in `load'
        from C:/Users/jakub/Downloads/rubyinstaller-3.2.2-1-x64/rubyinstaller-3.2.2-1-x64/bin/rdf:32:in `<main>'

[gkellogg]

From the trace, it's hard to see where the confusion is introduced. There is code in RDF::URI to not use the C: bit as a URI scheme on windows platforms, and this generally seems to work, as both the RDF and the rdf-tabular gems run CI on Windows. But, there may be some case where it's dealing with multiple tables and not taking the proper path. That might be in rdf/tabular/read.rb someplace around line 210. I'm handicapped by not having a Windows platform to try this out on, so if you're able to get in there with a debugger you might be able to see where it happens. I suspect the issue lies entirely in the rdf-tabular gem, and not the RDF.rb gem.

[jakubklimek]

@gkellogg Sorry for the delay, but only now I managed to get the debugger up and running (I have never coded in Ruby before).
I traced the problem to https://github.com/ruby-rdf/rdf-tabular/blob/develop/lib/rdf/tabular/reader.rb#L83-L84:

file_uri = "file:" + File.expand_path(@options[:base])
@options[:base] = RDF::URI(file_uri.to_s).normalize

where file_uri is file:D:/Downloads/rdf-develop/1.csv-metadata.json - I am not sure this is correct, as the Windows file: URL should be: file:///D:/Downloads/rdf-develop/1.csv-metadata.json.

Then the result of RDF::URI(file_uri.to_s).normalize is file:D%3A/Downloads/rdf-develop/1.csv-metadata.json.

Digging further into uri.rb, functionnormalized_path - the URI is split into segments:

On https://github.com/ruby-rdf/rdf/blob/develop/lib/rdf/model/uri.rb#L1099 normalize_segment is called on the D: segment.
On https://github.com/ruby-rdf/rdf/blob/develop/lib/rdf/model/uri.rb#L1360, URI.encode is called on the segment D:, producing D%3A.

I am not sure what the proper solution should be and where exactly.

[gkellogg]

I fixed some handling for the file scheme, and other windows-specific drive letter handling on the develop branch. Please try building with develop from GitHub to see if that fixes your problem; otherwise, you can re-open this issue with further details.

[jakubklimek]

Thanks, now I get an error elsewhere:

Uncaught exception: loading remote context failed: file:/D:/Downloads/rdf-develop/etc/csvw.jsonld: Invalid argument @ rb_sysopen - /D:/Downloads/rdf-develop/etc/csvw.jsonld
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `initialize'
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `open'
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `open_file'
        D:/Downloads/rdf-develop/lib/json/ld/api.rb:752:in `documentLoader'
        D:/Downloads/rdf-develop/lib/json/ld/api.rb:642:in `call'
        D:/Downloads/rdf-develop/lib/json/ld/api.rb:642:in `loadRemoteDocument'
        D:/Downloads/rdf-develop/lib/json/ld/context.rb:326:in `block (2 levels) in parse'
        D:/Downloads/rdf-develop/lib/json/ld/context.rb:257:in `each'
        D:/Downloads/rdf-develop/lib/json/ld/context.rb:257:in `block in parse'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        D:/Downloads/rdf-develop/lib/json/ld/context.rb:256:in `parse'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:112:in `<class:Metadata>'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:21:in `<module:Tabular>'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:20:in `<top (required)>'
        C:/Tools/Ruby33-x64/lib/ruby/3.3.0/bundled_gems.rb:75:in `require'
        C:/Tools/Ruby33-x64/lib/ruby/3.3.0/bundled_gems.rb:75:in `block (2 levels) in replace_require'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:102:in `block (2 levels) in initialize'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:350:in `open_file'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `initialize': loading remote context failed: file:/D:/Downloads/rdf-develop/etc/csvw.jsonld: Invalid argument @ rb_sysopen - /D:/Downloads/rdf-develop/etc/csvw.jsonld (JSON::LD::JsonLdError::LoadingRemoteContextFailed)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `open_file'
        from D:/Downloads/rdf-develop/lib/json/ld/api.rb:752:in `documentLoader'
        from D:/Downloads/rdf-develop/lib/json/ld/api.rb:642:in `call'
        from D:/Downloads/rdf-develop/lib/json/ld/api.rb:642:in `loadRemoteDocument'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:326:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:257:in `each'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:257:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:256:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:112:in `<class:Metadata>'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:21:in `<module:Tabular>'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:20:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/3.3.0/bundled_gems.rb:75:in `require'
        from C:/Tools/Ruby33-x64/lib/ruby/3.3.0/bundled_gems.rb:75:in `block (2 levels) in replace_require'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:102:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:350:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `initialize': Invalid argument @ rb_sysopen - /D:/Downloads/rdf-develop/etc/csvw.jsonld (Errno::EINVAL)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:332:in `open_file'
        from D:/Downloads/rdf-develop/lib/json/ld/api.rb:752:in `documentLoader'
        from D:/Downloads/rdf-develop/lib/json/ld/api.rb:642:in `call'
        from D:/Downloads/rdf-develop/lib/json/ld/api.rb:642:in `loadRemoteDocument'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:326:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:257:in `each'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:257:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/json/ld/context.rb:256:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:112:in `<class:Metadata>'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:21:in `<module:Tabular>'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:20:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/3.3.0/bundled_gems.rb:75:in `require'
        from C:/Tools/Ruby33-x64/lib/ruby/3.3.0/bundled_gems.rb:75:in `block (2 levels) in replace_require'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:102:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:350:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'

Process finished with exit code 1

[jakubklimek]

(and I do not have permission to re-open the issue)

[gkellogg]

I may have fixed that but already; see if you get more commits on a git pull.

[jakubklimek]

This is based on 71f70d5 - the latest commit

[jakubklimek]

But the problem seems to be on this line in rdf-tabular now.

[gkellogg]

I pushed up some more changes to the "rdf" gem, as well as "rdf-tabular". I'm getting some errors in rdf-tabular tests, which I'll continue to work on, but it may be worth getting the latest versions of these gems from GitHub to see what that does for you.

I'm handicapped by not having a Windows development platform, so I've been leaning on GitHub actions to see results, which are inadequate for development.

[jakubklimek]

OK, now I get yet another error.
My working directory, from where rdf is run as D:\Downloads\rdf-develop\bin\rdf validate --input-format tabular 1.csv-metadata.json, and which contains the files 1.csv-metadata.json and 1.csv, is D:\Downloads\rdf-develop. However, apparently, the base URL for some reason is D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb/, i .e. the lib/rdf/tabular/reader.rb/ should not be there:

Uncaught exception: No such file or directory @ rb_sysopen - D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb/1.csv
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:344:in `rescue in open_file'
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:316:in `open_file'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:223:in `block (2 levels) in each_statement'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1354:in `block in each_table'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each_table'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:213:in `block in each_statement'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:182:in `each_statement'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:162:in `block (2 levels) in initialize'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:103:in `block in initialize'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:344:in `rescue in open_file': No such file or directory @ rb_sysopen - D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb/1.csv (RDF::ReaderError)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:316:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:223:in `block (2 levels) in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1354:in `block in each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:213:in `block in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:182:in `each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:162:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:103:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:344:in `rescue in open_file': No such file or directory @ rb_sysopen - D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb/1.csv (IOError)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:316:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:223:in `block (2 levels) in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1354:in `block in each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:213:in `block in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:182:in `each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:162:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:103:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:331:in `initialize': No such file or directory @ rb_sysopen - D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb/1.csv (Errno::ENOENT)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:331:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:331:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:223:in `block (2 levels) in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1354:in `block in each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1353:in `each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:213:in `block in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:182:in `each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:162:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:103:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'

Process finished with exit code 1

[gkellogg]

I had modified the expand_path to include __FILE__, which was a mistake, at least on Windows. Try again.

[jakubklimek]

Now I get this - no path, and an extra / if it is supposed to be relative to the working dir:

Uncaught exception: No such file or directory @ rb_sysopen - /1.csv
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:344:in `rescue in open_file'
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:316:in `open_file'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:218:in `block (2 levels) in each_statement'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1349:in `block in each_table'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each'
        D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each_table'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:208:in `block in each_statement'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:177:in `each_statement'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:157:in `block (2 levels) in initialize'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:344:in `rescue in open_file': No such file or directory @ rb_sysopen - /1.csv (RDF::ReaderError)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:316:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:218:in `block (2 levels) in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1349:in `block in each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:208:in `block in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:177:in `each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:157:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:344:in `rescue in open_file': No such file or directory @ rb_sysopen - /1.csv (IOError)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:316:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:218:in `block (2 levels) in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1349:in `block in each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:208:in `block in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:177:in `each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:157:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'
D:/Downloads/rdf-develop/lib/rdf/util/file.rb:331:in `initialize': No such file or directory @ rb_sysopen - /1.csv (Errno::ENOENT)
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:331:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:331:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:218:in `block (2 levels) in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1349:in `block in each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/metadata.rb:1348:in `each_table'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:208:in `block in each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:177:in `each_statement'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:554:in `block in exec'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:710:in `block (2 levels) in parse'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:157:in `block (2 levels) in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:264:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/util/logger.rb:198:in `log_depth'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:98:in `block in initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `instance_eval'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:319:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/tabular/reader.rb:76:in `initialize'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `new'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:244:in `block in open'
        from D:/Downloads/rdf-develop/lib/rdf/util/file.rb:349:in `open_file'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:221:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/reader.rb:212:in `open'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:708:in `block in parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `each'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:707:in `parse'
        from D:/Downloads/rdf-develop/lib/rdf/cli.rb:553:in `exec'
        from D:/Downloads/rdf-develop/bin/rdf:13:in `<top (required)>'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `load_protect'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/debase-3.0.0.beta.12/lib/debase.rb:248:in `debug_load'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/lib/ruby-debug-ide.rb:129:in `debug_program'
        from C:/Tools/Ruby33-x64/lib/ruby/gems/3.3.0/gems/ruby-debug-ide-3.0.0.beta.18/bin/rdebug-ide:202:in `<main>'

[gkellogg]

Can you tell me how you're invoking the gem that results in this problem? If you use an absolute path name, does it work properly?