Tcl_TranslateFileName(3tcl)

💖 Tcl_TranslateFileName — bestie's guide to the manual page 💖

okay so. this is Tcl_TranslateFileName(3tcl) from the Tcl Library Procedures, and it's about turning a file name into its native form. that's literally it. let's go 🦋

---

✨ NAME ✨

Tcl_TranslateFileName — convert file name to native form 💅

---

🌸 SYNOPSIS 🌸

#include <tcl.h>

char *
Tcl_TranslateFileName(interp, name, bufferPtr)

---

🎀 ARGUMENTS 🎀

• Tcl_Interp *interp (in) — the interpreter where we drop the error message, if there is one. she's the one who has to hold the receipts 😭
• const char *name (in) — the file name. the actual name. the star of the show 👑
• Tcl_DString *bufferPtr (in/out) — if it's needed, this dynamic string is where the new file name gets stored. when you call, it should be uninitialized or free, bestie, do not come in here with a half-used DString. and the caller must eventually call Tcl_DStringFree to free up anything that got stored in there. that's on you, not on her. 🫶

---

💜 DESCRIPTION 💜

so this utility procedure translates a file name into a platform-specific form which, after being converted to the appropriate encoding, is suitable for passing to the local operating system. and specifically? it converts network names into native form. iconic behaviour, honestly. ✨

but bestie... lowkey there's a plot twist. with the advent of the newer Tcl_FSGetNormalizedPath and Tcl_FSGetNativePath, there is no longer any need to use this procedure. like, at all. no cap.

and here's why Tcl_FSGetNativePath is the main character: it performs all the necessary translation and encoding conversion, it's virtual-filesystem aware, and it caches the native result so repeated calls are faster. and as a final slay, Tcl_FSGetNativePath does not require you to free anything afterwards. no cleanup era. periodt. 💅

now, if Tcl_TranslateFileName does have to translate the name, then it uses the dynamic string at *bufferPtr to hold the new string it generates. once Tcl_TranslateFileName returns a non-NULL result, the caller must eventually invoke Tcl_DStringFree to free any information placed in *bufferPtr. the tea here is that the caller need not know whether or not Tcl_TranslateFileName actually used the string — because Tcl_TranslateFileName initializes *bufferPtr even if it does not use it, so the call to Tcl_DStringFree will be safe in either case. she's got you covered either way, fr fr 🧚

if an error occurs (e.g. because there was no user by the given name) then NULL is returned and an error message will be left in the interpreter's result. and when an error occurs, Tcl_TranslateFileName frees the dynamic string itself so that the caller need not call Tcl_DStringFree. she cleans up after herself when things go wrong, that's the vibe 🌈

also: the caller is responsible for making sure that the interpreter's result has its default empty value when Tcl_TranslateFileName is invoked. do not skip this step, bestie, it's giving important 🙈

---

🌟 SEE ALSO 🌟

• filename(3tcl)

---

🍓 KEYWORDS 🍓

file name, home directory, translate, user 💖

---

and that's the whole page, babe — this one comes from Tcl, version 8.1, and it's dated right there in the footer as Tcl_TranslateFileName(3tcl). go forth and translate those file names, or honestly... just use Tcl_FSGetNativePath like the icon you are 💅✨🎀