added pcre

ports/pcre/CONTROL

@@ -0,0 +1,4 @@
+Source: pcre
+Version: 8.38
+Description: Perl Compatible Regular Expresions
+Build-Depends: zlib

ports/pcre/portfile.cmake

@@ -0,0 +1,37 @@
+# Common Ambient Variables:
+#   VCPKG_ROOT_DIR = <C:\path\to\current\vcpkg>
+#   TARGET_TRIPLET is the current triplet (x86-windows, etc)
+#   PORT is the current port name (zlib, etc)
+#   CURRENT_BUILDTREES_DIR = ${VCPKG_ROOT_DIR}\buildtrees\${PORT}
+#   CURRENT_PACKAGES_DIR  = ${VCPKG_ROOT_DIR}\packages\${PORT}_${TARGET_TRIPLET}
+#
+
+include(${CMAKE_TRIPLET_FILE})
+include(vcpkg_common_functions)
+set(SOURCE_PATH ${CURRENT_BUILDTREES_DIR}/src/pcre-8.38)
+vcpkg_download_distfile(ARCHIVE
+    URLS "ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.38.zip"
+    FILENAME "pcre-8.38.zip"
+    SHA512 82f1c2bdd0a6cc086e3734621ac7a2773cb28f42cf5e400b9bbe8c16655465d9367bce82c6db69577c40ec137b30f1b2443a8d91998a514f81e1c2210828a113
+)
+vcpkg_extract_source_archive(${ARCHIVE})
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    OPTIONS -DPCRE_BUILD_TESTS=NO
+            -DPCRE_BUILD_PCREGREP=NO
+    # OPTIONS -DUSE_THIS_IN_ALL_BUILDS=1 -DUSE_THIS_TOO=2
+    # OPTIONS_RELEASE -DOPTIMIZE=1
+    # OPTIONS_DEBUG -DDEBUGGABLE=1
+)
+
+vcpkg_install_cmake()
+
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share)
+
+# Handle copyright
+file(COPY ${SOURCE_PATH}/COPYING DESTINATION ${CURRENT_PACKAGES_DIR}/share/pcre)
+file(RENAME ${CURRENT_PACKAGES_DIR}/share/pcre/COPYING ${CURRENT_PACKAGES_DIR}/share/pcre/copyright)
+
+vcpkg_copy_pdbs()