-Files we use and update
------------------------
-
-The program reads and writes the following files:
-
- * #pages#.pnm
-
- Contains one or more images (as raw ppms, end-to-end) which are the
- screenshots taken in the last run. This is (over)written whenever
- we take screenshots from the YPP client. You can reprocess an
- existing set of screenshots with the --same (aka --analyse-only)
- option; in that case we just read the screenshots file.
-
- You can specify a different file with --screenshot-file.
-
- If you want to display the contents of this file, `display' can do
- it. Don't try `display vid:#pages#.pnm' as this will consume
- truly stupendous quantities of RAM - it wedged my laptop.
-
- * charset-15.txt
-
- Character set database. For the semantics of the contents of this
- file see README.charset. There is not currently any accurate
- documentation of this database format.
-
- If you delete this file you'll have to re-enter a lot of glyph data
- (and probably get it wrong and make the program misrecognise
- things). If you want to undo any mistakes you may have made
- answering OCR questions you can safely revert this to the version
- I've supplied.
-
- * #commodmap#.tsv
-
- Map from commodity names to the numbers required by the PCTB
- server. This is fetched and updated automatically as necessary.
- It can safely be deleted as it will then be refetched.
- * <file>.new
-
- When any of these tools overwrite one of the persistent database
- files, they temporarily write to <file>.new.
-
-These files are all in the current working directory. There is not
-yet any feature to have them be somewhere else. The helper programs
- yppsc-ocr-resolver
- yppsc-commod-processor
-must (currently) also be in the current directory.
-
-Future versions may have more helpers and more data files.
+Options to override which servers we talk to:
+ --pctb-server HOST|URL Talk to the PCTB server at HOST or URL.
+ --dict-submit-url URL Submit dictionary entries with HTTP POST under URL.
+ --dict-update-from SRC Fetch updated master dictionary with rsync from SRC.
+Or set the environment variables YPPSC_PCTB{_PCTB, _DICT_UPDATE, _DICT_SUBMIT}