Pretty-print OBJ to PORT, attempting to at most MAX-WIDTH character columns and assuming the current column is INDENT. Comments present in OBJ are included in the output.

Lists longer than LONG-LIST are written as one element per line. Comments are passed through FORMAT-COMMENT before being emitted; a useful value for FORMAT-COMMENT is 'canonicalize-comment'. Vertical space is passed through FORMAT-VERTICAL-SPACE; a useful value of 'canonicalize-vertical-space'.

Return a new comment made from STR. When MARGIN? is true, return a margin comment; otherwise return a line comment. STR must start with a semicolon and end with newline, otherwise an error is raised.

Read from PORT until the end-of-file is reached and return the list of expressions and blanks that were read.

Like 'read', but include <blank> objects when they're encountered. When BLANK-LINE? is true, assume PORT is at the beginning of a new line.

Pretty-print OBJ with INDENT columns as the initial indent. ARGS are passed as-is to 'pretty-print-with-comments'.

Read a recutils-style record from PORT and return it as a list of key/value pairs. Stop upon an empty line (after consuming it) or EOF.

Apply MAKE to the values associated with KEYS in ALIST. Items in KEYS that are also in MULTIPLE-VALUE-KEYS are considered to occur possibly multiple times in ALIST, and thus their value is a list.

Write OBJECT (typically a record) as a series of recutils-style fields to PORT, according to FIELDS. FIELDS must be a list of field name/getter pairs.

Evaluate EXP, a gexp, on the host at SESSION, an SSH session. Ensure that all the elements EXP refers to are built and deployed to SESSION beforehand. When BUILD-LOCALLY? is true, said dependencies are built locally and sent to the remote store afterwards; otherwise, dependencies are built directly on the remote store.

Run a machine-usable REPL over ports INPUT and OUTPUT.

The protocol of this REPL is meant to be machine-readable and provides proper support to represent multiple-value returns, exceptions, objects that lack a read syntax, and so on. As such it is more convenient and robust than parsing Guile's REPL prompt.

Write the response corresponding to the evaluation of EXP to PORT, an output port. VERSION is the client's protocol version we are targeting.

Return the u8 list representing a signature header containing the HEADER-SHA256 (a string) and the PAYLOAD-SIZE, which is the combined size of the header and compressed payload.