postings in one line

smartprocure · Mar 24, 2017 · 86a3923 · 86a3923
1 parent 663b90d
commit 86a3923
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 0 deletions.
diff --git a/src/index.js b/src/index.js
@@ -32,3 +32,7 @@ export const deepMap = _.curry((fn, obj, _map = map, is = isTraversable) =>
 // Misc
 // ----
 export const testRegex = regex => regex.test.bind(regex)
+
+// Gets all the regexp.exec indexes and their respective lastIndexes
+export const postings = _.curry((r, s) =>
+    _.map(x => (m => [m.index, r.lastIndex])(r.exec(s)), s.match(r)))
diff --git a/test/misc.spec.js b/test/misc.spec.js
@@ -40,4 +40,8 @@ describe('Regexp Functions', () => {
         expect(f.testRegex(/smart/i)('SmartProcure')).to.equal(true)
         expect(f.testRegex(/smart/)('SmartProcure')).to.equal(false)
     })
+    it('postings', () => {
+        expect(f.postings(/p/gi, 'pretty please')).to.deep.equal([[0, 1], [7, 8]])
+        expect(f.postings(/wh/gi, 'what whale')).to.deep.equal([[0, 2], [5, 7]])
+    })
 })