// ------------------------------------------------------------------------------------
// Name: DoLike
// Goal: Perform the "Like" function using the pattern (or patterns) stored in [strPattern]
// There can be more than 1 pattern in [strPattern], which must be separated
// by a vertical bar: |
// History:
// 17-06-2010 ERK Created
// ------------------------------------------------------------------------------------
public static bool DoLike(string strText, string strPattern)
{
string[] arPattern = null;
// Array of patterns
int intI = 0;
// Counter
try {
// Validate
if ((strText == null))
{
return(true);
}
// If the text to compare is empty, then we return false
if ((string.IsNullOrEmpty(strText)))
{
return(false);
}
// Reduce the [strPattern]
strPattern = strPattern.Trim().ToLower();
// Take lower case of the text
strText = strText.ToLower();
// SPlit the [strPattern] into different ones
arPattern = strPattern.Split(new string[] { "|" }, StringSplitOptions.None);
// Perform the "Like" operation for all needed patterns
for (intI = 0; intI < arPattern.Length; intI++)
{
// See if something positive comes out of this comparison
if (strText.IsLike(arPattern[intI]))
{
return(true);
}
}
// No match has happened, so return false
return(false);
} catch (Exception ex) {
// Show error
ErrHandle.HandleErr("General/DoLike", ex);
// Return failure
return(false);
}
}
/// <summary>
/// File-to-file buffered decompression
/// </summary>
/// <param name="sFileIn"></param>
/// <param name="sFileOut"></param>
/// <returns></returns>
public static bool DecompressFile(String sFileIn, String sFileOut)
{
const int size = 8192;
byte[] buffer = new byte[size];
try {
using (FileStream fCompr = new FileStream(sFileIn, FileMode.Open, FileAccess.Read))
using (FileStream fDecom = new FileStream(sFileOut, FileMode.Create, FileAccess.Write))
using (GZipStream alg = new GZipStream(fCompr, CompressionMode.Decompress)) {
int bytesRead = 0;
do
{
// Read buffer
bytesRead = alg.Read(buffer, 0, buffer.Length);
// Write buffer away
if (bytesRead > 0)
{
fDecom.Write(buffer, 0, bytesRead);
}
} while (bytesRead > 0);
// finish writing
fDecom.Flush();
fDecom.Close(); fDecom.Dispose();
// Finish reading
alg.Close();
fCompr.Close(); fCompr.Dispose();
}
// Return success
return(true);
} catch (Exception ex) {
ErrHandle.HandleErr("DecompressFile", ex);
// Return failure
return(false);
}
}
/// <summary>
/// Convert a string consisting of base64 encoded characters to a number
/// </summary>
/// <param name="sEncoded"></param>
/// <returns></returns>
public static int base64ToInt(String sEncoded)
{
int iBack = 0;
try {
// COnvert string into byte array
char[] arEncoded = sEncoded.ToCharArray();
// Treat the characters one-by-one from right-to-left
for (int i = 0; i < arEncoded.Length; i++)
{
// Conversion depends on the character values
char chThis = arEncoded[i];
int iThis = 0;
switch (chThis)
{
case 'A': iThis = 0; break;
case 'B': iThis = 1; break;
case 'C': iThis = 2; break;
case 'D': iThis = 3; break;
case 'E': iThis = 4; break;
case 'F': iThis = 5; break;
case 'G': iThis = 6; break;
case 'H': iThis = 7; break;
case 'I': iThis = 8; break;
case 'J': iThis = 9; break;
case 'K': iThis = 10; break;
case 'L': iThis = 11; break;
case 'M': iThis = 12; break;
case 'N': iThis = 13; break;
case 'O': iThis = 14; break;
case 'P': iThis = 15; break;
case 'Q': iThis = 16; break;
case 'R': iThis = 17; break;
case 'S': iThis = 18; break;
case 'T': iThis = 19; break;
case 'U': iThis = 20; break;
case 'V': iThis = 21; break;
case 'W': iThis = 22; break;
case 'X': iThis = 23; break;
case 'Y': iThis = 24; break;
case 'Z': iThis = 25; break;
case 'a': iThis = 26; break;
case 'b': iThis = 27; break;
case 'c': iThis = 28; break;
case 'd': iThis = 29; break;
case 'e': iThis = 30; break;
case 'f': iThis = 31; break;
case 'g': iThis = 32; break;
case 'h': iThis = 33; break;
case 'i': iThis = 34; break;
case 'j': iThis = 35; break;
case 'k': iThis = 36; break;
case 'l': iThis = 37; break;
case 'm': iThis = 38; break;
case 'n': iThis = 39; break;
case 'o': iThis = 40; break;
case 'p': iThis = 41; break;
case 'q': iThis = 42; break;
case 'r': iThis = 43; break;
case 's': iThis = 44; break;
case 't': iThis = 45; break;
case 'u': iThis = 46; break;
case 'v': iThis = 47; break;
case 'w': iThis = 48; break;
case 'x': iThis = 49; break;
case 'y': iThis = 50; break;
case 'z': iThis = 51; break;
case '0': iThis = 52; break;
case '1': iThis = 53; break;
case '2': iThis = 54; break;
case '3': iThis = 55; break;
case '4': iThis = 56; break;
case '5': iThis = 57; break;
case '6': iThis = 58; break;
case '7': iThis = 59; break;
case '8': iThis = 60; break;
case '9': iThis = 61; break;
case '+': iThis = 62; break;
case '/': iThis = 63; break;
}
// Add the new value to the existing ones
iBack = iBack * 64 + iThis;
}
return(iBack);
} catch (Exception ex) {
ErrHandle.HandleErr("base64ToInt", ex);
// Return failure
return(-1);
}
}