A missing file below a folder link whose target does not exist got
"does not exist", while one below a link to an existing outside folder
was refused, so a script could tell whether the folder a link leads to
exists. A missing path is now refused when the nearest entry above it
that exists is a link that leads to nothing.
A `File` or `Folder` for a missing path got "does not exist" even when
the path led outside the script's folder, through a folder link or, on a
file system where case matters, through a folder whose name differs from
the script's folder only in case, while an existing file there was
refused. A missing path is now refused unless the nearest folder above
it that exists lies inside a granted folder.
Outside Windows, `\\host\s\x.txt`, `\\?\C:\x.txt` and `\\.\pipe\x` are
relative file names in the script's folder, so `exists`, `open` and
`getFiles` look them up. The test now expects no lookups for them on
Windows only, and on macOS and Linux checks `//host/s/x.txt`, an absolute
path outside the folder, alone. The returned values are the same on every
platform.
Scripts get the File and Folder classes as built-ins of the script
engine. A script run from a file can test whether files exist, read
their properties, list folders with getFiles (a mask or a function),
and open files to read them with read, readln, readch, seek and tell.
- Reads stay inside the script's folder and, when automation read
roots are set, inside them too. A script given as text reads no
files. Network and device paths, and paths outside the folder by
their names, are refused before anything is looked up. Links and
junctions that lead out are refused, and getFiles leaves them out.
- The encoding comes from the byte order mark, then the encoding the
script set, then UTF-8 when the bytes are valid, then CP1252.
- Limits: 8 MiB a file, 32 MiB a run, 256 files open at once, 2,048
getFiles entries and 65,536 names looked at, and paths of at most
32,767 characters.
- Writing, the file dialogs and execute are not available yet: they
return false or null and set error.
The report's hostCallCounts gains fileCalls and fileExecutes.
Docs: docs/mcp.md, docs/target-app-parity.md.