Partial functions from the Haskell base library, such as head and !!, modified

to return more descriptive error messages, programmer defined error messages,
Maybe wrapped results and default values.

These functions can be used to reduce the number of unsafe pattern matches in
your code.

WWW: http://www-users.cs.york.ac.uk/~ndm/safe/

PR:		ports/142144
Submitted by:	Jacula Modyun <jacula(at)gmail.com>

devel/Makefile

@@ -551,6 +551,7 @@
     SUBDIR += hs-mmap
     SUBDIR += hs-pcre-light-ghc
     SUBDIR += hs-readline
+    SUBDIR += hs-safe
     SUBDIR += hs-uniplate
     SUBDIR += hs-utf8-string-ghc
     SUBDIR += hs-uuagc

devel/hs-safe/Makefile

@@ -0,0 +1,75 @@
+# New ports collection makefile for: hs-safe
+# Date created:        December 20 2009
+# Whom:                Giuseppe Pilichi aka Jacula Modyun <jacula@gmail.com>
+#
+# $FreeBSD$
+#
+
+PORTNAME=	safe
+PORTVERSION=	0.2
+CATEGORIES=	devel haskell
+MASTER_SITES=	http://hackage.haskell.org/packages/archive/${PORTNAME}/${PORTVERSION}/
+PKGNAMEPREFIX=	hs-
+
+MAINTAINER=	jacula@gmail.com
+COMMENT=	A Haskell library for safe (pattern match free) functions
+
+BUILD_DEPENDS+=	ghc:${PORTSDIR}/lang/ghc
+RUN_DEPENDS+=	ghc:${PORTSDIR}/lang/ghc
+
+GHC_VERSION=	6.10.4
+SAFE_VERSION=	${PORTVERSION}
+
+GHC_CMD=	${LOCALBASE}/bin/ghc
+SETUP_CMD=	./setup
+
+DOCSDIR=		${PREFIX}/share/doc/${DISTNAME}
+SAFE_LIBDIR_REL=	lib/${DISTNAME}
+
+PLIST_SUB=	GHC_VERSION=${GHC_VERSION} \
+		SAFE_VERSION=${SAFE_VERSION} \
+		SAFE_LIBDIR_REL=${SAFE_LIBDIR_REL}
+
+.if defined(NOPORTDOCS)
+PLIST_SUB+=		NOPORTDOCS=""
+.else
+PLIST_SUB+=		NOPORTDOCS="@comment "
+.endif
+
+.if !defined(NOPORTDOCS)
+
+PORT_HADDOCK!=	(cd  ${.CURDIR}/../../lang/ghc && ${MAKE} -V PORT_HADDOCK)
+.if !empty(PORT_HADDOCK:M?0)
+BUILD_DEPENDS+=	haddock:${PORTSDIR}/devel/hs-haddock
+.endif
+BUILD_DEPENDS+=	HsColour:${PORTSDIR}/print/hs-hscolour
+
+HSCOLOUR_VERSION=	1.15
+HSCOLOUR_DATADIR=	${PREFIX}/share/hscolour-${HSCOLOUR_VERSION}
+
+PORTDOCS=	*
+.endif
+
+.SILENT:
+
+do-configure:
+	cd ${WRKSRC} && ${GHC_CMD} --make Setup.hs -o setup -package Cabal \
+		     && ${SETUP_CMD} configure --haddock-options=-w --prefix=${PREFIX}
+
+do-build:
+	cd ${WRKSRC} && ${SETUP_CMD} build \
+		     && ${SETUP_CMD} register --gen-script
+
+.if !defined(NOPORTDOCS)
+	cd ${WRKSRC} && ${SETUP_CMD} haddock --hyperlink-source \
+					     --hscolour-css=${HSCOLOUR_DATADIR}/hscolour.css
+.endif
+
+do-install:
+	cd ${WRKSRC} && ${SETUP_CMD} install \
+		     && ${INSTALL_SCRIPT} register.sh ${PREFIX}/${SAFE_LIBDIR_REL}/register.sh
+
+post-install:
+	${RM} -f ${PREFIX}/lib/ghc-${GHC_VERSION}/package.conf.old
+
+.include <bsd.port.mk>

devel/hs-safe/distinfo

@@ -0,0 +1,3 @@
+MD5 (safe-0.2.tar.gz) = e5331578ea7e0b68ed1ea4df923a23ca
+SHA256 (safe-0.2.tar.gz) = 73b9a247c3ba8092236c8c912687399778ff31bf3df42d707563a1528a6fc0e0
+SIZE (safe-0.2.tar.gz) = 3557

devel/hs-safe/pkg-descr

@@ -0,0 +1,8 @@
+Partial functions from the Haskell base library, such as head and !!, modified
+to return more descriptive error messages, programmer defined error messages,
+Maybe wrapped results and default values.
+
+These functions can be used to reduce the number of unsafe pattern matches in
+your code.
+
+WWW: http://www-users.cs.york.ac.uk/~ndm/safe/

devel/hs-safe/pkg-plist

@@ -0,0 +1,13 @@
+@comment $FreeBSD$
+%%SAFE_LIBDIR_REL%%/ghc-%%GHC_VERSION%%/HSsafe-%%SAFE_VERSION%%.o
+%%SAFE_LIBDIR_REL%%/ghc-%%GHC_VERSION%%/Safe.hi
+%%SAFE_LIBDIR_REL%%/ghc-%%GHC_VERSION%%/libHSsafe-%%SAFE_VERSION%%.a
+%%SAFE_LIBDIR_REL%%/register.sh
+%%NOPORTDOCS%%%%DOCSDIR%%/LICENSE
+%%NOPORTDOCS%%@dirrmtry %%DOCSDIR%%
+@dirrm %%SAFE_LIBDIR_REL%%/ghc-%%GHC_VERSION%%
+@dirrm %%SAFE_LIBDIR_REL%%
+@exec /bin/sh %D/%%SAFE_LIBDIR_REL%%/register.sh
+@exec /bin/rm -f %D/lib/ghc-%%GHC_VERSION%%/package.conf.old
+@unexec %D/bin/ghc-pkg unregister safe
+@unexec /bin/rm -f %D/lib/ghc-%%GHC_VERSION%%/package.conf.old