vim-r7rs-syntax

Vim syntax highlighting for R7RS Scheme and Gauche.

(with g:r7rs_use_gauche = 1)

Development status

• R7RS-small
• R7RS-large: Red and Tangerine editions
• SRFI: See SRFIs tracking issue.
• Gauche: Mostly implemented. See TODO.

Installation

Use your favorite package manager. For example using Paq:

require'paq-nvim' {
  'mnacamura/vim-r7rs-syntax',
}

Options

For all options, if both global and buffer local ones are defined, the buffer local one takes precedence.

r7rs_strict

This option forces syntax highlighting to obey the Scheme language specification in R7RS: it restricts use of [] and {} as parentheses (see g:r7rs_more_parens) and rejects some identifiers that could be accepted in the wild (see g:r7rs_strict_identifier).

let g:r7rs_strict = 1  " default: 0

Enabling this option is equivalent to setting

let g:r7rs_more_parens = ''
let g:r7rs_strict_identifier = 1
let g:r7rs_use_gauche = 0

If g:r7rs_strict is set, the other relevant options are ignored.

r7rs_more_parens

If square brackets [] and curly braces {} are included in this option, they are accepted as additional parentheses.

let g:r7rs_more_parens = ']}'  " default: ']'

It does not care about whether the parens are opening [{ or closing ]}.

r7rs_strict_identifier

If this option is disabled (default), any identifier other than single . are accepted. If enabled, only those specified in R7RS are accepted: identifiers starting from digits, containing non-ASCII letters, etc. are rejected.

let g:r7rs_strict_identifier = 1  " default: 0

For more details, see R7RS, sec. 7.1.1 (p. 62) and the errata, 7.

r7rs_use_gauche

This option enables highlighting for Gauche's extended reader syntaxes (#/regexp/, #[charset], #"~(interpolated) string", ...), numeric literals (#12r34_56@78pi), :keywords, <objects>, and a bunch of extra syntaxes/procedures.

let g:r7rs_use_gauche = 1  " default: 0

Enjoy Gauche!

If g:use_gauche is set, g:strict_identifier is ignored since identifiers in Gauche are not strict (e.g., 1/pi in math.const module).

Change log

Unreleased

• Add missing keywords for Gauche 0.9.10
• Support the following SRFIs:
  • SRFI 17
  • SRFI 18
  • SRFI 21
  • SRFI 25
  • SRFI 26
  • SRFI 27
  • SRFI 152
  • SRFI 206
  • SRFI 212
  • SRFI 213
  • SRFI 217
  • SRFI 221

0.2.1 (2021-06-28)

• Fix highlighting for r7rsVariable
• Fix highlighting for @vector-comparator

0.2 (2021-06-27)

• Fix Gauche shebang to accept <file-start>#!<newline>
• Support all R7RS-large libraries in Red and Tangerine editions
• Support the following SRFIs:
  • SRFI 2
  • SRFI 8
  • SRFI 22
  • SRFI 112
  • SRFI 118
  • SRFI 120
  • SRFI 129
  • SRFI 145

0.1 (2021-06-22)

• Support R7RS small
• Support R7RS-large libraries except:
  • (scheme ilist)
  • (scheme rlist)
  • (scheme text)
  • (scheme bytevector)
  • (scheme show)
• Support Gauche 0.9.10 except SRFIs 7 and 10

License

MIT