Lianja

Find a ZIP Entry by Exact Path Using EntryOf

See more Zip Examples

This example demonstrates how to use the EntryOf method to find a ZIP entry whose stored path exactly matches a specified path.

Unlike EntryMatching, which performs wildcard matching, EntryOf performs an exact path lookup.

This method is useful when:

• The exact ZIP path is already known
• Retrieving a specific file or directory entry
• Verifying whether a particular entry exists in the ZIP archive

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
images/logo.png
data/config/settings.json

ZIP archives may optionally contain explicit directory entries such as docs/. These directory entries can also be retrieved using EntryOf.

The example:

• Finds an exact file entry
• Finds an exact directory entry
• Demonstrates the difference between file and directory entries

Lianja

llSuccess = .F.

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

llSuccess = .F.

// Open an existing ZIP archive.
loZip = createobject("CkZip")

llSuccess = loZip.OpenZip("example.zip")
if (llSuccess = .F.) then
    ? loZip.LastErrorText
    release loZip
    return
endif

loEntry = createobject("CkZipEntry")

// ------------------------------------------------------------
// Find a specific file entry by its exact ZIP path.

llSuccess = loZip.EntryOf("docs/readme.txt",loEntry)

if (llSuccess = .T.) then
    ? "Found file entry:"
    ? "  FileName = " + loEntry.FileName
    ? "  IsDirectory = " + str(loEntry.IsDirectory)
    ? ""
endif

// ------------------------------------------------------------
// Find a directory entry.
// 
// ZIP archives may optionally contain explicit directory entries.
// In this example, "docs/" is a separate directory entry.

llSuccess = loZip.EntryOf("docs/",loEntry)

if (llSuccess = .T.) then
    ? "Found directory entry:"
    ? "  FileName = " + loEntry.FileName
    ? "  IsDirectory = " + str(loEntry.IsDirectory)
    ? ""
endif

// ------------------------------------------------------------
// Attempt to find a non-existent entry.

llSuccess = loZip.EntryOf("images/missing.png",loEntry)

if (llSuccess = .F.) then
    ? "The entry images/missing.png was not found."
endif

loZip.CloseZip()

? "Done."


release loZip
release loEntry