scheme-r7rs

Scheme language support (R7RS+/#F) for VS Code

Features

Mostly follows R7RS syntax definitions, including the following:

• correct coloring of R7RS numerical constants, identifiers, strings, and characters
• support for #; comments
• support for vectors, bytevectors, quoted and backquoted forms

Extensions:

• additional definition and syntax keywords from earlier standards and #F
• support for #& box syntax

Screenshots

(color theme is available as scheme-r7rs-light)

Release 0.0.1

Initial release of the extension

Known Issues

Known colorizer problems (most probably cannot be easily fixed):

• colorizer gets confused by datum prefixes such as ` ' , ,@ #& if the datum that follows is separated by newlines or comments
• definition coloring can be easily fooled by newlines and/or comments in the first two sub-forms
• #; comments use relaxed grammar and may be colored incorrectly in some corner cases
• coloring of backquoted expressions is not very robust; it fails if double-nested (e.g.`(a `(b ,,c ',,d) e)) or if full forms like (unquote x) are used. Reasonable forms from real code are colored reasonably well.
• generally, grammar is relaxed in many places, so some syntax errors won't look like errors (e.g. cons dot can be misplaced).

Credits

Based on author's .tmLanguage extension published here: textmate-scheme-support

Flaming Lambda logo borrowed from the Wizard Book