FilenameExtIs function
Determines if Filename has the specified file extension.
Declaration
function FilenameExtIs(const Filename: string; const Ext: string;
CaseSensitive: Boolean=False): BooleanArguments
Filename | File name examined in the routine. |
Ext | File extension expected in the file name. |
CaseSensitive | True to use case-sensitive comparison in the routine. |
Function result
Returns True if Filename has the specified file extension.
Description
FilenameExtIs is a
Boolean function used to determine
if the file in the
Filename parameter has the specified file
extension in
Ext.
Ext can contain the '.' (Period) character in the extension, but it is not required.
CaseSensitive indicates if case-sensitivity is used when comparing
parameter values. When set to
True, the comparison is limited to
values in the ASCII character set.
StrLComp or
StrLIComp
is called to compare the values in Filename to the values in Ext.
The return value is True when Filename uses the file extension in Ext. The return value is False for the following conditions:
- Filename is an empty string ('').
- Filename does not have a '.' character that marks the start of the file extension.
- The extension in Filename has a different length than Ext.
- Filename has a different file extension than Ext.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.