X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.db-test.git;a=blobdiff_plain;f=pctb%2FREADME;h=e2452ddec32dd8a85a93f04a0390588c2e301ebf;hp=938f0dec190743ff25b3f2e8f118fdc10e2b7ebf;hb=3b77f87531d0429325ca1adfa27d62f642e3643c;hpb=e306e9e16dbe793b20652a2f94fd5337f018318e diff --git a/pctb/README b/pctb/README index 938f0de..e2452dd 100644 --- a/pctb/README +++ b/pctb/README @@ -1,18 +1,172 @@ +Overview +-------- + This tool can: - screenscrape the commodities trading screen - produce the results as a tab separated values file - **TODO** upload the results to PCTB To run it, change to this directory, type `make', and then: - ./ypp-commodities >commods.csv - -It may put up a window asking about characters it does not understand. -It is important to get these inputs right or it may misrecognise -things in future. **TODO** write actual useful instructuions to cover the -subtleties. The results are stored in the file `charset-15.txt'. - -If you need to report a bug, please be sure to remember the exact -error message and circumstances. Also, for recognition problems there -will probably be a very useful screenshot file called `#pages#.pnm'. -This is likely to be very large so don't just email it to me, but if -you can put it up on a webpage for me to download that will help. + ./ypp-commodities --tsv >commods.tsv + +While it is capturing the screenshots, do not move the mouse or use +the keyboard. Keyboard focus must stay in the YPP client window. + +You will probably need to turn off `Use antialiased font' in the YPP +client. This is in the Ye panel, Options, tab `General'. + +Command-line options +-------------------- + +Setting the operation mode: + --find-window-only Just check that we can find the YPP client window. + --screenshot-only Page through and take screenshots, do not OCR + --analyse-only | --same Process previously taken screenshots + --everything (default) Take screenshots and process them + +Options to vary the processing: + --single-page One screenful, no paging - results will be incomplete + --quiet Suppress progress messages + --screenshot-file F Store or read screenshots in F rather than #pages#.pnm + --window-id ID Specified X window is the YPP client - do not search + --edit-charset Enable character set editing. See README.dictionary. + --find-island Find and print the ocean and island. Suppresses OCR + and output unless used with result processing option. + --test-servers Set default servers to be the test servers, not + the real live ones (doesn't affect explicit settings). + +Controlling what happens to the results - only one at a time: + --upload (default) Upload to the PCTB server + --tsv Print data as clean tab-separated-values file + --raw-tsv Dump the raw (not deduped, unsorted) OCR'd data + --best-prices Print best buy and sell price for each commodity + --arbitrage Print arbitrage opportunities + +Privacy options, which control conversations with the dictionary server: + --dict-local-only * Do not talk to the server even to fetch new dictionary. + --dict-read-only * Only fetch new dictionary, do not submit new entries. + --dict-anon Don't quote pirate name if submitting entries. + --dict-submit Submit entries quoting my pirate name. (default) +Please do not use options marked * with --upload. See README.privacy. + +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} + + +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 dictionary. For the semantics of the contents of this + file see README.charset. There is not currently any accurate + documentation of this dictionary 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. + + * .new + + When any of these tools overwrite one of the persistent dictionary + files, they temporarily write to .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 + dictionary-manager + commod-results-processor +must (currently) also be in the current directory. + +Future versions may have more helpers and more data files. + + +Installation requirements +------------------------- + +This program has quite a few dependencies: + Package (Debian etch) + + - For building, C compiler and build environment build-essential + - pnm library, including dev files for building libnetpbm10-dev + - pnm command line utilities for image manipulation netpbm + - X11 libraries, including dev files for building libx11-dev + - XTEST library, including dev files for building libxtst-dev + - Tk interpreter /usr/bin/wish tk8.4 + - Perl module XML::Parser libxml-parser-perl + - Perl module JSON::Parser libjson-perl + - XTEST extension in the X server (part of X package) + - Perl interpreter and basic modules perl (usu.installed) + +On other Linux distros the packages may have different names, but +these should be roughly right for Debian and its derivatives. + + +Reporting problems +------------------ + +If you need to report a bug, for example an inability to recognise, +please be sure to remember the exact error message and circumstances. +Also, for recognition problems there will probably be a very useful +screenshot file called `#pages#.pnm'. This is likely to be very large +so don't just email it to me, but if you can put it up on a webpage +for me to download that will help. At least keep a copy of it. + +If the problem is a failure to cope with some particular YPP client +display and is reproducible, try running: + ./ypp-commodities --raw-tsv --single-page +If this reproduces the problem, please email me the screenshot file +#pages#.pnm, which will consist only of the single screen, plus the +error messasge. I'll then be able to understand what's wrong, +hopefully. + + +Privacy +------- + +The main purpose of this program is to connect to the PCTB server and +upload data. It will do that if you run it with --upload. + +This program will also, by default, talk to the dictionary server I +have set up: to download updated image dictionaries, and to upload new +dictionary entries which you create with the PCTB client dictionary +GUI. This feature is mentioned in and controllable in the GUI itself, +so it won't happen without you knowing about it. + +The uploads will by default mention your ocean and pirate name; if you +don't want that, pass the --dict-anon option, or untick the box in the +GUI. + +See README.privacy for full details. + + + + - Ian Jackson + ijackson@chiark.greenend.org.uk + Aristarchus on the Midnight ocean