Results for "Category: String Manipulation"

FormatFileSize: Formats a file's size in bytes into X GB or X MB or X KB or X bytes depending on size (a la Win9x Properties tab) * UPDATED Sept. 12, 2000 * to allow for overriding the default Format Mask.

It will erase any non-alphanumeric characters from a string rapidly. Usefull if you want to check strings for non-valid characters. Strings such as email or web addresses, you can even make so that only numbers can be entered in, for example, a text box.

This code is just for fun, it demostrates an interesting phenomenon and some ways to manipulate strings, and arrays. According to research at an English university, it doesn't matter in which order the letters in a word are, the only important thing is that the first and last letters are in the right place. The rest can be a total mess and you can still read it without a problem. This is because we do not read every letter by itself but the word as a whole. This works with nearly every language. IMPORTANT: A similar program was posted a little before mine, but I posted mine without knowledge of that, and without seeing any portion of the code. This program (and I'm sure the other one too) was inspired in an email that got forwarded around the world a few days ago. The main difference between my program and the other one is that this one uses a byte array and totally randomizes the order of the words, the other program merely reverses the order of the letters. Thank you.

RECURSIVE DESCENT PARSER FOR NUMERIC EXPRESSIONS

Converts a name or word string to a four digit code following Soundex rules. Similar code is used by geniological groups and the US Census Bureau for looking up names by phonetic sound. For example, the name Darrell can be spelled many different ways. Regardles of how you spell it, (Daryl, Derrel, Darel, etc.) the Soundex code is always D640. Therefore, you assign a field in your database to the Soundex code and then query the database using the code, all instances of Darrell regarless of spelling will be returned. Refer to the code comment section for more information.

This function converts amount in words with supplied currency parameters. e.g. AmtToWords(12345.01, "GB POUND", "PENNY", "GB POUNDS", "PENNIES") will return GB POUNDS TWELVE THOUSAND THREE HUNDRED FORTY-FIVE and ONE PENNY ONLY

Convert a string in EBCDIC format downloaded from an IBM mainframe to ASCII format.

Convert ASCII strings into EBCDIC code to upload into an IBM mainframe. This code may be used also as a basic encrypting method. Both ASCII to EBCDIC and EBCDIC to ASCII are included in this code.

This is a recursive function that evaluates strings expressions. It supports multiple levels of parenthesis, algebraic evaluation of expressions (in this example exponentiation ^ has same level of multiplication and division), function calls, logical operators, string/date/numeric functions and expresion evaluation. This is the base for the creation of a scripting language.

The following code is a Visual Basic function that returns a specific "token" (section/substring of data) from a delimited string list. The function accepts the index of the desired token and also the delimiter as specified by the programmer.

Encode/Decode a string. (BMTEncode refined version). If f.ex. enter AA the 2 output chars wont be the same.

This is a set of three functions that pull tagged data, such as that from HTML or XML, based on the tag name. I've used this in a number of applications where I've need to store multiple bits of variable-length data in a single string or file.

format a text field into a $ currency field.

This example I put together teaches you how to use the InStr function with a string. InStr is very important to use because you can get certain information from a String by using it. Example: say a String has your first and last name in it like "Mike Canejo". InStr allows you to get just the last name or first name. First and Last name are just an example. You could do tons of things with Instr. This is very important for a beginner to know trust me. You'll be surprized if you end up using it in your next vb project :)

This shows you how to search for a "string" inside of a "string" to see if it's there or not. This makes a good E-mail validator.. If the user doesn't put the "@" character, this will know it's not there and return false. This also works the same way if your trying to validate a Full Name. I commented everyline so enjoy and good luck.-Mike

This code recieves RTF code as output by a Rich Text Box in VB or MS Word. It outputs the equivalent in HTML. It's in a somewhat BETA form in that it handles a number of but not all of the possible codes. If you encounter a code it doesn't properly convert just send it to me and I'll try to fix the function within 24 hours. I think it does a better job on uncomplicated text than MS Word's HTML conversion.

Visual Basic 6 has a new function called InStrRev, which searches a string from right to left. I found it very usefeul, so much so that a project of mine relies completely on it. When I tried to work on the project at another location on VB5 I found that the function did not exist. So, I wrote it. I left out the compare method, you can add it if you want

DUHH

This Function Adds quotes to a filename... especially useful when sending an arguement to a program (ie a filename) and it has spaces in it (with spaces if shows up as multiple arguements.

This code is a direct replacement for the VB6 Replace function. Obviously, VB 6 users will have very little (if any) use for the function. It is intended for use with older versions of VB that do not have the in-built Replace function. I noticed a similar piece of code released earlier this week, but it only appeared to handle character replacing and not strings. This version will do both and it's pretty tight and fast.