The shrubbery command-line tool: parse, print, format and check Shrubbery notation

shrubbery

rhombus

cli

formatter

parser

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Author

marianoguerra

Version

0.1.1

License

Apache-2.0

Repository

github.com/marianoguerra/shrubbery-mb

Last updated

14 hours ago

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Dependencies

#shrubbery-cli

The shrubbery command: read, check and re-format Shrubbery notation.

moon add marianoguerra/shrubbery-cli

#Checking

shrubbery check src/*.shrub

Reports every problem in each file, not just the first, with the source shown and a caret under the column that is wrong. Exits 1 if anything was reported.

error[shrubbery::wrong_indentation]: this group is not indented like the ones around it
  ╭─[ greeting.shrub:3:2 ]
  │
2 │   world
3 │  universe
  │  ───┬────
  │     ╰─ this column does not line up
  │
  ├─ help: every group in a sequence starts at the same column
  ╰─

--error-format short gives one line per problem, in the shape editors and grep already understand; --error-format json gives one JSON object per line. --color always|never|auto decides the escapes.

#Re-formatting

shrubbery fmt --width 80 --write src/*.shrub

Four styles, and the difference between them is what carries the grouping:

--style	grouping is carried by
flat	«», ; and , only — one line, and re-indenting it cannot change what it says
pretty	line breaks where they help, «» where they are needed (the default)
armoured	«» everywhere, but laid out over lines
multiline	line breaks in preference to «»

--width N applies to everything but flat; omit it and no line is broken that could be one. --write rewrites in place. A file that does not parse is reported and left alone.

#The rest

tokens, parse, source, print and doc exist to drive the differential test suite against the Racket reference implementation. Their output formats are shared with the harness rather than chosen for looks, and print and doc are the tools for working out whether a formatting difference is a layout decision or a construction one.

#Licence

Apache-2.0.

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