Merge pull request #97 from leifg/implement-functions-01

Implement REGEX

src/functionDispatcher.js

@@ -40,5 +40,6 @@ const functionValidations = {
   len: validateNumOfParams(1),
   mid: validateNumOfParams(3),
   right: validateNumOfParams(2),
-  trim: validateNumOfParams(1)
+  trim: validateNumOfParams(1),
+  regex: validateNumOfParams(3)
 }

src/functions.js

@@ -201,3 +201,10 @@ export const sf$trim = (text) => {
 export const sf$upper = (text, locale) => {
   return buildLiteralFromJs(text.value.toUpperCase())
 }
+
+// Advanced Functions
+
+export const sf$regex = (text, regexText) => {
+  let r = new RegExp(`^${regexText.value}$`)
+  return buildLiteralFromJs(r.exec(text.value) != null)
+}

test/functions.spec.js

@@ -556,3 +556,31 @@ describe('upper', () => {
     expect(functions.sf$upper(buildLiteralFromJs('mycompany.com'))).to.deep.eq(buildLiteralFromJs('MYCOMPANY.COM'))
   })
 })
+
+// Advanced Functions
+
+describe('regex', () => {
+  it('returns true for match', () => {
+    let text = buildLiteralFromJs('999-99-9999')
+    let regexText = buildLiteralFromJs('[0-9]{3}-[0-9]{2}-[0-9]{4}')
+    expect(functions.sf$regex(text, regexText)).to.deep.eq(buildLiteralFromJs(true))
+  })
+
+  it ('returns false for non-match', () => {
+    let text = buildLiteralFromJs('something else')
+    let regexText = buildLiteralFromJs('[0-9]{3}-[0-9]{2}-[0-9]{4}')
+    expect(functions.sf$regex(text, regexText)).to.deep.eq(buildLiteralFromJs(false))
+  })
+
+  it('matches complete string', () => {
+    let text = buildLiteralFromJs('According to Marc Benioff, the social enterprise increases customer success.')
+    let regexText = buildLiteralFromJs('.*Marc Benioff.*')
+    expect(functions.sf$regex(text, regexText)).to.deep.eq(buildLiteralFromJs(true))
+  })
+
+  it('does not match partial string', () => {
+    let text = buildLiteralFromJs('According to Marc Benioff, the social enterprise increases customer success.')
+    let regexText = buildLiteralFromJs('Marc Benioff')
+    expect(functions.sf$regex(text, regexText)).to.deep.eq(buildLiteralFromJs(false))
+  })
+})