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af00598c9a
18bd83b1fee2eb47ed4ad05c91f2d6cc311fc9ad util: Cleanup translation.h (Hennadii Stepanov)
e95e658b8ec6e02229691a1941d688e96d4df6af doc: Do not translate technical or extremely rare errors (Hennadii Stepanov)
7e923d47ba9891856b86bc9f718cf2f1f773bdf6 Make InitError bilingual (Hennadii Stepanov)
917ca93553917251e0fd59717a347c63cdfd8a14 Make ThreadSafe{MessageBox|Question} bilingual (Hennadii Stepanov)
23b9fa2e5ec0425980301d2eebad81e660a5ea39 gui: Add detailed text to BitcoinGUI::message (Hennadii Stepanov)
Pull request description:
This is an alternative to #15340 (it works with the `Chain` interface; see: https://github.com/bitcoin/bitcoin/pull/15340#issuecomment-502674004).
Refs:
- #16218 (partial fix)
- https://github.com/bitcoin/bitcoin/pull/15894#issuecomment-487947077
This PR:
- makes GUI error messages bilingual: user's native language + untranslated (i.e. English)
- insures that only untranslated messages are written to the debug log file and to `stderr` (that is not the case on master).
If a translated string is unavailable only an English string appears to a user.
Here are some **examples** (updated):
* `qt5ct: using qt5ct plugin` message is my local environment specific; please ignore it.
---
Note for reviewers: `InitWarning()` is out of this PR scope.
ACKs for top commit:
Sjors:
re-tACK 18bd83b1fee2eb47ed4ad05c91f2d6cc311fc9ad
MarcoFalke:
ACK 18bd83b1fee2eb47ed4ad05c91f2d6cc311fc9ad 🐦
Tree-SHA512: 3cc8ec44f84403e54b57d11714c86b0855ed90eb794b5472e432005073354b9e3f7b4e8e7bf347a4c21be47299dbc7170f2d0c4b80e308205ff09596e55a4f96
# Conflicts:
# src/dashd.cpp
# src/httpserver.cpp
# src/index/base.cpp
# src/init.cpp
# src/interfaces/chain.cpp
# src/interfaces/chain.h
# src/interfaces/node.cpp
# src/net.h
# src/qt/bitcoingui.cpp
# src/ui_interface.h
# src/wallet/init.cpp
# src/wallet/load.cpp
101 lines
4.0 KiB
Markdown
101 lines
4.0 KiB
Markdown
Translation Strings Policy
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===========================
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This document provides guidelines for internationalization of the Dash Core software.
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How to translate?
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------------------
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To mark a message as translatable
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- In GUI source code (under `src/qt`): use `tr("...")`
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- In non-GUI source code (under `src`): use `_("...")`
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No internationalization is used for e.g. developer scripts outside `src`.
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Strings to be translated
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-------------------------
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On a high level, these strings are to be translated:
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- GUI strings, anything that appears in a dialog or window
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### GUI strings
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Do not translate technical or extremely rare errors.
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Anything else that appears to the user in the GUI is to be translated. This includes labels, menu items, button texts, tooltips and window titles.
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This includes messages passed to the GUI through the UI interface through `InitMessage`, `ThreadSafeMessageBox` or `ShowProgress`.
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General recommendations
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------------------------
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### Avoid unnecessary translation strings
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Try not to burden translators with translating messages that are e.g. slight variations of other messages.
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In the GUI, avoid the use of text where an icon or symbol will do.
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Make sure that placeholder texts in forms do not end up in the list of strings to be translated (use `<string notr="true">`).
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### Make translated strings understandable
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Try to write translation strings in an understandable way, for both the user and the translator. Avoid overly technical or detailed messages.
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### Do not translate internal errors
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Do not translate internal errors, log messages, or messages that appear on the RPC interface. If an error is to be shown to the user,
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use a translatable generic message, then log the detailed message to the log. E.g., "A fatal internal error occurred, see debug.log for details".
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This helps troubleshooting; if the error is the same for everyone, the likelihood is increased that it can be found using a search engine.
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### Avoid fragments
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Avoid dividing up a message into fragments. Translators see every string separately, so they may misunderstand the context if the messages are not self-contained.
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### Avoid HTML in translation strings
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There have been difficulties with the use of HTML in translation strings; translators should not be able to accidentally affect the formatting of messages.
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This may sometimes be at conflict with the recommendation in the previous section.
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### Plurals
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Plurals can be complex in some languages. A quote from the gettext documentation:
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In Polish we use e.g. plik (file) this way:
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1 plik,
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2,3,4 pliki,
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5-21 pliko'w,
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22-24 pliki,
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25-31 pliko'w
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and so on
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In Qt code, use tr's third argument for optional plurality. For example:
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tr("%n hour(s)","",secs/HOUR_IN_SECONDS);
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tr("%n day(s)","",secs/DAY_IN_SECONDS);
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tr("%n week(s)","",secs/WEEK_IN_SECONDS);
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This adds `<numerusform>`s to the respective `.ts` file, which can be translated separately depending on the language. In English, this is simply:
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<message numerus="yes">
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<source>%n active connection(s) to Dash network</source>
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<translation>
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<numerusform>%n active connection to Dash network</numerusform>
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<numerusform>%n active connections to Dash network</numerusform>
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</translation>
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</message>
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Where possible, try to avoid embedding numbers into the flow of the string at all. E.g.,
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WARNING: check your network connection, %d blocks received in the last %d hours (%d expected)
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versus
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WARNING: check your network connection, less blocks (%d) were received in the last %n hours than expected (%d).
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The second example reduces the number of pluralized words that translators have to handle from three to one, at no cost to comprehensibility of the sentence.
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### String freezes
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During a string freeze (often before a major release), no translation strings are to be added, modified or removed.
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This can be checked by executing `make translate` in the `src` directory, then verifying that `dash_en.ts` remains unchanged.
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