Exercise 10: Develop a regular expression that will accept strings consisting of three or four words only (a word is a collection of "word" characters separated by a space, the start of the expression, or the end of the expression). There may or may not be punctuation at the end of the string: (Hint: The test cases include cases where there are extra spaces at the end of the string) Exercise 10 Test Strings: Test Suite: (Should be ACCEPTED) REJECTI one two three REJECT: one two three four REJECT: 1 2 3 4 REJECT: how many worda? Test Suite: (Should be REJECTED): REJECT: word word REJECT: word REJECT: MOrd word REJECT: word word word seord word REJECT: Mord! word word REJECT: word word

Exercise 10: Develop a regular expression that will accept strings consisting of three or four words only (a word is a collection of "word" characters separated by a space, the start of the expression, or the end of the expression). There may or may not be punctuation at the end of the string: (Hint: The test cases include cases where there are extra spaces at the end of the string) Exercise 10 Test Strings: Test Suite: (Should be ACCEPTED) REJECTI one two three REJECT: one two three four REJECT: 1 2 3 4 REJECT: how many worda? Test Suite: (Should be REJECTED): REJECT: word word REJECT: word REJECT: MOrd word REJECT: word word word seord word REJECT: Mord! word word REJECT: word word

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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