Difference between revisions of "FindAllFiles"
Line 2: | Line 2: | ||
[[Unit]]: | [[Unit]]: | ||
− | Lazarus [[LazFileUtils]] ([[UTF-8]] replacements for FPC [[RTL]] code and additional file/directory handling) | + | Lazarus [[FileUtils]] |
+ | |||
+ | During some time the routine was in Lazarus [[LazFileUtils]] ([[UTF-8]] replacements for FPC [[RTL]] code and additional file/directory handling) | ||
See also: | See also: | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
− | ''' | + | '''FindAllFiles''' looks for files matching the searchmask in the SearchPath directory and if specified its children and populates a [[TStrings|stringlist]] with the resulting filenames. |
The mask can be a single mask like you can use with the FindFirst/FindNext functions, | The mask can be a single mask like you can use with the FindFirst/FindNext functions, | ||
Line 28: | Line 30: | ||
<syntaxhighlight> | <syntaxhighlight> | ||
uses | uses | ||
− | ..., | + | ..., FileUtils, ... |
var | var | ||
PascalFiles: TStringList; | PascalFiles: TStringList; |
Revision as of 01:40, 28 November 2017
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During some time the routine was in Lazarus LazFileUtils (UTF-8 replacements for FPC RTL code and additional file/directory handling)
See also:
- http://lazarus-ccr.sourceforge.net/docs/lcl/fileutil/findallfiles.html
- http://lazarus-ccr.sourceforge.net/docs/lcl/fileutil/tfilesearcher.html
procedure FindAllFiles(AList: TStrings; const SearchPath: String;
SearchMask: String = ''; SearchSubDirs: Boolean = True; DirAttr: Word = faDirectory);
function FindAllFiles(const SearchPath: String; SearchMask: String = '';
SearchSubDirs: Boolean = True): TStringList;
FindAllFiles looks for files matching the searchmask in the SearchPath directory and if specified its children and populates a stringlist with the resulting filenames.
The mask can be a single mask like you can use with the FindFirst/FindNext functions,
or it can consist of a list of masks, separated by a semicolon (;).
Spaces in the mask are treated as literals.
There are two overloaded versions of this routine. The first one is a procedure and assumes that the receiving stringlist already has been created. The second one is a function which creates the stringlist internally and returns it as a function result. In both cases the stringlist must be destroyed by the calling procedure.
Example:
uses
..., FileUtils, ...
var
PascalFiles: TStringList;
begin
PascalFiles := TStringList.Create;
try
FindAllFiles(PascalFiles, LazarusDirectory, '*.pas;*.pp;*.p;*.inc', true); //find e.g. all pascal sourcefiles
ShowMessage(Format('Found %d Pascal source files', [PascalFiles.Count]));
finally
PascalFiles.Free;
end;
// or
begin
//No need to create the stringlist; the function does that for you
PascalFiles := FindAllFiles(LazarusDirectory, '*.pas;*.pp;*.p;*.inc', true); //find e.g. all pascal sourcefiles
try
ShowMessage(Format('Found %d Pascal source files', [PascalFiles.Count]));
finally
PascalFiles.Free;
end;
IMPORTANT NOTE: The function "FindAllFiles" creates the stringlist internally. This may look very convenient at first sight, but it is very easy to create memory leaks that way:
// DON'T EVER DO THIS !!!! - There is no way to destroy the stringlist created by FindAllFiles.
Listbox1.Items.Assign(FindAllFiles(LazarusDirectory, '*.pas;*.pp;*.p;*.inc', true);