Click here to Skip to main content
Click here to Skip to main content
Go to top

An email collection program

, 11 Aug 2001
Rate this:
Please Sign up or sign in to vote.
This is a small program that can extract email addresses from files that are not necessarily text files.
<!-- Download Links --> <!-- Article image -->

Sample Image - email_collect.gif

<!-- Main HTML starts here -->

Introduction

This is a small program that can extract email addresses from files that are not necessarily text files.

The program works by opening the input file as a binary file. If an '@' sign is found in the file, the program "backs up" in the file to find the first character that could not be a valid email character.

Then, the email address is collected and stored in an array which is placed in memory. This process continues until the end of file is reached.

When the entire input file is read, the addresses are sorted in alphabetical order, and duplicate addresses are removed. Email addresses that are found in the file are shown in an edit box.

Additionally, a text file containing the same list is created (called emails.txt) in the root directory.

All enhancements and modifications are left to the creativity and imagination of the progrmamer.

Note: This program demonstrates the use of a very efficient sort algorithm. Also, this program shows beginning programmers how to allocate and free memory. Other items of potential interest show file positioning and removal of duplicate entries.

History

12 Aug 2001 - I incorporated a suggestion from a codeproject member, fixed a few bugs, and then made many improvements to the program. The program now can collect up to 250,000 email addresses per file.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

Share

About the Author

Scott Wenger

United States United States
Scott Wenger
panther@coredcs.com

Comments and Discussions

 
GeneralMy vote of 5 Pinmemberxuplus18-Nov-10 22:26 
Questionhow to detect what files attached in the mail? Pinmembervanta6-Feb-03 22:31 
GeneralJBuilder 6 and reading Excel file Pinmemberfsy21-Sep-02 0:18 
Generalloop unrolling Pinmembercarel16-Jul-01 6:12 
GeneralBad link Pinmemberxlam15-Jul-01 17:47 
The link to the Demo project is invalid
GeneralRe: Bad link PinmemberChris Maunder15-Jul-01 18:41 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Mobile
Web01 | 2.8.140916.1 | Last Updated 12 Aug 2001
Article Copyright 2001 by Scott Wenger
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid