add rematch2 lib using conda skeleton (#4829)

recipes/r-rematch2/build.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# R refuses to build packages that mark themselves as Priority: Recommended
+mv DESCRIPTION DESCRIPTION.old
+grep -v '^Priority: ' DESCRIPTION.old > DESCRIPTION
+
+$R CMD INSTALL --build .
+

recipes/r-rematch2/meta.yaml

@@ -0,0 +1,49 @@
+{% set version = '2.0.1' %}
+
+{% set posix = 'm2-' if win else '' %}
+{% set native = 'm2w64-' if win else '' %}
+
+package:
+  name: r-rematch2
+  version: {{ version|replace("-", "_") }}
+
+source:
+  fn: rematch2_{{ version }}.tar.gz
+  url:
+    - https://cran.r-project.org/src/contrib/rematch2_{{ version }}.tar.gz
+    - https://cran.r-project.org/src/contrib/Archive/rematch2/rematch2_{{ version }}.tar.gz
+
+
+  sha256: 0612bb904334bd022ba6d1e69925b1e85f8e86b15ec65476777828776e89609a
+
+
+build:
+  number: 0
+
+  # This is required to make R link correctly on Linux.
+  rpaths:
+    - lib/R/lib/
+    - lib/
+
+# Suggests: covr, testthat
+requirements:
+  build:
+    - r-base
+    - r-tibble
+
+  run:
+    - r-base
+    - r-tibble
+
+test:
+  commands:
+    # You can put additional test commands to be run here.
+    - $R -e "library('rematch2')"  # [not win]
+    - "\"%R%\" -e \"library('rematch2')\""  # [win]
+
+about:
+  home: https://github.com/r-lib/rematch2#readme
+  license: MIT + file LICENSE
+  summary: Wrappers on 'regexpr' and 'gregexpr' to return the match results in tidy data frames.
+  license_family: MIT
+