Provide mathematical, string and aggregate functions for SQL queries

using the SQLite loadable extensions mechanism.

Math functions:

  acos, asin, atan, atn2, atan2, acosh, asinh, atanh, difference,
  degrees, radians, cos, sin, tan, cot, cosh, sinh, tanh, coth,
  exp, log, log10, power, sign, sqrt, square, ceil, floor, pi

String functions:

  replicate, charindex, leftstr, rightstr, ltrim, rtrim, trim,
  replace, reverse, proper, padl, padr, padc, strfilter

Aggregate functions:

  stdev, variance, mode, median, lower_quartile, upper_quartile

WWW: http://www.sqlite.org/contrib

Submitted by:	myself (glarkin)
Feature safe:	yes

databases/Makefile

@@ -679,6 +679,7 @@
     SUBDIR += sqlclient
     SUBDIR += sqldeveloper
     SUBDIR += sqlite-ext-inet
+    SUBDIR += sqlite-ext-miscfuncs
     SUBDIR += sqlite2
     SUBDIR += sqlite3
     SUBDIR += sqlite34

databases/sqlite-ext-miscfuncs/Makefile

@@ -0,0 +1,58 @@
+# New ports collection makefile for:	sqlite-ext-miscfuncs
+# Date created:		28 Jan 2010
+# Whom:			Greg Larkin <glarkin@FreeBSD.org>
+#
+# $FreeBSD$
+#
+
+PORTNAME=	sqlite-ext-miscfuncs
+PORTVERSION=	1.0
+CATEGORIES=	databases
+MASTER_SITES=	http://www.sqlite.org/contrib/download/${DISTFILES}/download/ \
+		LOCAL/glarkin
+DISTNAME=	${SRCFILE}
+EXTRACT_SUFX=
+
+MAINTAINER=	glarkin@FreeBSD.org
+COMMENT=	Math, string, and aggregate function library for SQLite
+
+USE_SQLITE=	yes
+DIST_SUBDIR=	sqlite-ext
+NO_WRKSUBDIR=	yes
+
+SRCFILE=	extension-functions.c
+LIBFILE=	libsqlitemiscfuncs.so
+INST_DIR=	${PREFIX}/libexec/${DIST_SUBDIR}
+USE_LDCONFIG=	${INST_DIR}
+
+SUB_FILES=	${PORTDOCS}
+SUB_LIST+=	LIBFILE=${LIBFILE}
+
+FETCH_BEFORE_ARGS=	-o ${SRCFILE}?get=25
+
+EXTRACT_CMD=	${CP}
+EXTRACT_BEFORE_ARGS=
+EXTRACT_AFTER_ARGS=	${WRKSRC}/
+
+PLIST_DIRS=	libexec/${DIST_SUBDIR}
+PLIST_FILES=	${PLIST_DIRS}/${LIBFILE}
+
+PORTDOCS=	README
+
+CFLAGS+=	-I${PREFIX}/include -fPIC -lm -shared
+
+do-build:
+	@cd ${WRKSRC} && ${CC} ${CFLAGS} ${SRCFILE} -o ${LIBFILE}
+
+do-install:
+	@${INSTALL} -d ${PREFIX}/libexec/${DIST_SUBDIR}
+	@${INSTALL_PROGRAM} ${WRKSRC}/${LIBFILE} ${INST_DIR}
+
+post-install:
+.if !defined(NOPORTDOCS)
+	@${INSTALL} -d ${DOCSDIR}
+	@${CP} ${WRKDIR}/${PORTDOCS} ${DOCSDIR}
+.endif
+	@${CAT} ${PKGMESSAGE}
+
+.include <bsd.port.mk>

databases/sqlite-ext-miscfuncs/distinfo

@@ -0,0 +1,3 @@
+MD5 (sqlite-ext/extension-functions.c) = 625757faf99dde4e976a85f04a8f5e65
+SHA256 (sqlite-ext/extension-functions.c) = 4d8eeb7046e0c9671beadd0c5bea105c24a38ff1cf5fb318543a982d6ca3b1da
+SIZE (sqlite-ext/extension-functions.c) = 51748

databases/sqlite-ext-miscfuncs/files/README.in

@@ -0,0 +1,29 @@
+Usage instructions for applications calling the sqlite3 API functions:
+
+  In your application, call sqlite3_enable_load_extension(db,1) to
+  allow loading external libraries.  Then load the library
+  %%LIBFILE%% using sqlite3_load_extension; the third argument
+  should be 0. See http://www.sqlite.org/cvstrac/wiki?p=LoadableExtensions.
+  Select statements may now use these functions, as in:
+
+  SELECT cos(radians(inclination)) FROM satsum WHERE satnum = 25544;
+
+
+Usage instructions for the sqlite3 program:
+
+  If the program is built so that loading extensions is permitted,
+  the following will work:
+
+  sqlite> SELECT load_extension('%%LIBFILE%%');
+  sqlite> select cos(radians(45));
+  0.707106781186548
+
+  Note: Loading extensions is by default prohibited as a
+  security measure; see "Security Considerations" in
+  http://www.sqlite.org/cvstrac/wiki?p=LoadableExtensions.
+
+  If the sqlite3 program and library are built this
+  way, you cannot use these functions from the program, you
+  must write your own program using the sqlite3 API, and call
+  sqlite3_enable_load_extension as described above, or else
+  rebuilt the sqlite3 program to allow loadable extensions.

databases/sqlite-ext-miscfuncs/pkg-descr

@@ -0,0 +1,19 @@
+Provide mathematical, string and aggregate functions for SQL queries
+using the SQLite loadable extensions mechanism.
+
+Math functions:
+
+  acos, asin, atan, atn2, atan2, acosh, asinh, atanh, difference,
+  degrees, radians, cos, sin, tan, cot, cosh, sinh, tanh, coth,
+  exp, log, log10, power, sign, sqrt, square, ceil, floor, pi
+
+String functions:
+
+  replicate, charindex, leftstr, rightstr, ltrim, rtrim, trim,
+  replace, reverse, proper, padl, padr, padc, strfilter
+
+Aggregate functions:
+
+  stdev, variance, mode, median, lower_quartile, upper_quartile
+
+WWW: http://www.sqlite.org/contrib

databases/sqlite-ext-miscfuncs/pkg-message

@@ -0,0 +1,11 @@
+*********************************************************************
+Loading extensions is by default prohibited as a security measure;
+see "Security Considerations" in
+http://www.sqlite.org/cvstrac/wiki?p=LoadableExtensions.
+
+If the sqlite3 program and library are built this way, you cannot
+use these functions from the program, you must write your own program
+using the sqlite3 API, and call sqlite3_enable_load_extension as
+described above, or else rebuilt the sqlite3 program to allow
+loadable extensions.
+*********************************************************************