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doc: cookbook: Add cross-references to the Guile manual.

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* doc/guix-cookbook.texi (A Scheme Crash Course): Add cross-reference to
the Guile manual.
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Ludovic Courtès 2019-11-25 22:03:37 +01:00
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doc/guix-cookbook.texi
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@ -187,9 +187,10 @@ A list structure can be created with the @code{list} procedure:
@end lisp
@item
The @emph{quote} disables evaluation of a parenthesized expression: the first
term is not called over the other terms. Thus it effectively returns a list
of terms.
The @dfn{quote} disables evaluation of a parenthesized expression: the
first term is not called over the other terms (@pxref{Expression Syntax,
quote,, guile, GNU Guile Reference Manual}). Thus it effectively
returns a list of terms.
@lisp
'(display (string-append "Hello " "Guix" "\n"))
@ -200,9 +201,9 @@ of terms.
@end lisp
@item
The @dfn{quasiquote} disables evaluation of a parenthesized expression until
a comma re-enables it. Thus it provides us with fine-grained control over
what is evaluated and what is not.
The @dfn{quasiquote} disables evaluation of a parenthesized expression
until @dfn{unquote} (a comma) re-enables it. Thus it provides us with
fine-grained control over what is evaluated and what is not.
@lisp
`(2 a 5 7 (2 ,a 5 ,(+ a 4)))
@ -213,7 +214,8 @@ Note that the above result is a list of mixed elements: numbers, symbols (here
@code{a}) and the last element is a list itself.
@item
Multiple variables can be named locally with @code{let}:
Multiple variables can be named locally with @code{let} (@pxref{Local
Bindings,,, guile, GNU Guile Reference Manual}):
@lisp
(define x 10)
@ -249,7 +251,8 @@ the build stage. Note that it is merely a convention, like @code{_} in C.
Scheme treats @code{%} exactly the same as any other letter.
@item
Modules are created with @code{define-module}. For instance
Modules are created with @code{define-module} (@pxref{Creating Guile
Modules,,, guile, GNU Guile Reference Manual}). For instance
@lisp
(define-module (guix build-system ruby)