the issue of path truncation in error strings

[scriptkitz]

eg.
Lua error:
[string ".../zzz/abc.py"]:48: attempt to call a nil value (global 'testf')

LuaRT error:
[string "E:/xxx/yyy/..."]:48: attempt to call a nil value (global 'testf')

In luaL_loadfilep(), when loading the preprocessed source buffer into the Lua VM (via luaL_loadbuffer or similar), the filename passed as the chunkname is missing the @ prefix. This causes Lua to treat the filename as a raw string chunk, resulting in the actual filename being truncated at the end of the path instead of truncating the directory prefix.

[samyeyo]

You are totally right on this, thank you for your report

[scriptkitz]

int lua_preload_searcher(lua_State* L):

This error file is a module imported via require, and I've located the issue.