Previously, 'let' bindings could be rendered like this:
(let ((x 1) (y 2)
(z 3))
...)
With this change, each bindings goes in its own line.
Partly fixes <https://issues.guix.gnu.org/56297>.
Reported by Maxime Devos <maximedevos@telenet.be>.
* guix/scripts/style.scm (pretty-print-with-comments)[list-of-lists?]:
New procedure.
Use it.
* tests/style.scm: Add tests with 'let' and 'substitute-keyword-arguments'.
This ensures we print '#:key value' rather than insert a newline
between '#:key' and 'value' as was the case before.
* guix/scripts/style.scm (pretty-print-with-comments)[print-sequence]:
When ITEM is a keyword, loop with FIRST? = true.
* tests/style.scm: Add test.
Until now dots were read as symbols.
* guix/scripts/style.scm (read-with-comments)[dot]: New variable.
[dot?, reverse/dot]: New procedures.
Use 'reverse/dot' instead of 'reverse' when reading lists.
* tests/style.scm ("read-with-comments: dot notation")
("((a . 1) (b . 2))", "(a b c . boom)"): New tests.
* guix/scripts/style.scm (canonicalize-comment): New procedure.
(pretty-print-with-comments): Add #:format-comment. and honor it.
(object->string*): Add 'args' and honor them.
(format-package-definition): Pass #:format-comment to
'object->string*'.
* tests/style.scm ("pretty-print-with-comments, canonicalize-comment"):
New test.
This allows us to express cases where a newline should be inserted
immediately after the head symbol of a list.
* guix/scripts/style.scm (%newline-forms): New variable.
(newline-form?): New procedure.
(pretty-print-with-comments): Handle "newline forms".
* tests/style.scm: Add test.
* guix/scripts/style.scm (vhashq): New macro.
(%special-forms): New variable.
(special-form?): New procedure.
(pretty-print-with-comments): Add many clauses and tweak existing
rules.
* tests/style.scm (test-pretty-print): New macro.
<top level>: Add 'test-pretty-print' tests.
Ludovic Courtès