devel/R-cran-listenv: Add new port

List environments are environments that have list-like properties.
For instance, the elements of a list environment are ordered and
can be accessed and iterated over using index subsetting,
 e.g.
 'x <- listenv(a = 1, b = 2);
  for (i in seq_along(x)) x[[i]] <- x[[i]] ^ 2;
  y <- as.list(x)'.

WWW: https://cran.r-project.org/web/packages/listenv/

devel/Makefile

@@ -60,6 +60,7 @@
     SUBDIR += R-cran-itertools
     SUBDIR += R-cran-later
     SUBDIR += R-cran-lifecycle
+    SUBDIR += R-cran-listenv
     SUBDIR += R-cran-lubridate
     SUBDIR += R-cran-magrittr
     SUBDIR += R-cran-memoise

devel/R-cran-listenv/Makefile

@@ -0,0 +1,13 @@
+PORTNAME=	listenv
+PORTVERSION=	0.8.0
+CATEGORIES=	devel
+DISTNAME=	${PORTNAME}_${PORTVERSION}
+
+MAINTAINER=	tota@FreeBSD.org
+COMMENT=	Environments Behaving (Almost) as Lists
+
+LICENSE=	LGPL21+
+
+USES=		cran:auto-plist
+
+.include <bsd.port.mk>

devel/R-cran-listenv/distinfo

@@ -0,0 +1,3 @@
+TIMESTAMP = 1631095901
+SHA256 (listenv_0.8.0.tar.gz) = fd2aaf3ff2d8d546ce33d1cb38e68401613975117c1f9eb98a7b41facf5c485f
+SIZE (listenv_0.8.0.tar.gz) = 36762

devel/R-cran-listenv/pkg-descr

@@ -0,0 +1,9 @@
+List environments are environments that have list-like properties.
+For instance, the elements of a list environment are ordered and
+can be accessed and iterated over using index subsetting,
+ e.g.
+ 'x <- listenv(a = 1, b = 2);
+  for (i in seq_along(x)) x[[i]] <- x[[i]] ^ 2;
+  y <- as.list(x)'.
+
+WWW: https://cran.r-project.org/web/packages/listenv/