file -I route12.asc If you see charset=iso-8859-1 (Windows-1252 sibling) or non-ISO extended-ASCII , you must convert it. Convert to UTF-8 with LF line endings (for editing in BBEdit, VS Code, or even Numbers):
content = resp.content.decode(detected['encoding']) content = content.replace('\r\n', '\n').replace('\r', '\n') download asc timetables for mac
For Mac users, the golden rule is: Always pass it through a sanitization pipeline before your simulator sees it. Conclusion Downloading ASC timetables on macOS is not a “download and double-click” operation. It is a deliberate act of translation between two incompatible worlds: the Windows-centric rail simulation ecosystem and the Unix-clean philosophy of macOS. With the right tools—Terminal, iconv , BBEdit, and a skepticism of TextEdit—you can successfully import any ASC timetable. But the process reveals a deeper truth: cross-platform interoperability in niche simulation domains remains an afterthought, held together by command-line duct tape and user ingenuity. file -I route12
with open("timetable.asc", "w", encoding="utf-8", newline='\n') as f: f.write(content) It is a deliberate act of translation between
import requests import chardet url = "https://some.repo/timetable.asc" resp = requests.get(url) detected = chardet.detect(resp.content)
curl -O https://example.com/timetables/route12.asc --output route12.asc After download, check the encoding:
Run with python3 fetch_timetable.py . This handles any legacy encoding automatically. | Symptom | Cause | Fix | |---------|-------|-----| | Timetable opens as one long line | Missing CRLF conversion | tr '\r' '\n' < old.asc > new.asc | | Simulator shows empty schedule | UTF-8 BOM (byte order mark) | Save as UTF-8 without BOM in BBEdit | | Strange characters like  before symbols | UTF-8 interpreted as Latin-1 | Re-save as Windows-1252 | | File downloads as .asc.html | Server sent wrong MIME type | Use curl -L -o file.asc | 8. The Future: GTFS and the Decline of ASC The rail community is slowly moving to GTFS (General Transit Feed Specification) – a zip-based, UTF-8, cross-platform standard. macOS handles GTFS natively: unzip, open stop_times.txt in any editor. But legacy ASC files will remain for another decade in model railroading and heritage line simulations.