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author | Patrick Griffis <pgriffis@igalia.com> | 2023-05-02 19:20:30 +0000 |
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committer | Patrick Griffis <pgriffis@igalia.com> | 2023-05-02 19:20:30 +0000 |
commit | de2ff264540b892a7eac26805010cf27fbb28a39 (patch) | |
tree | e690b728a4e31be514ba59b47a6bb1e0e8b222e0 | |
parent | 8725d6ef4c356abd035472f0adb96cc8b591c8b7 (diff) | |
parent | 0e941418d139a77a0a505f28e42562bd20b452ba (diff) | |
download | glib-de2ff264540b892a7eac26805010cf27fbb28a39.tar.gz |
Merge branch '116-utf8-docs' into 'main'
docs: Document high-level UTF-8 requirements for GLib
Closes #116
See merge request GNOME/glib!3414
-rw-r--r-- | docs/reference/glib/programming.xml | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/docs/reference/glib/programming.xml b/docs/reference/glib/programming.xml index 2c38fee5d..9efa19d33 100644 --- a/docs/reference/glib/programming.xml +++ b/docs/reference/glib/programming.xml @@ -31,6 +31,36 @@ to test all the allocation failure code paths. </refsect2> <refsect2> +<title>UTF-8 and String Encoding</title> + +<para> +All GLib, GObject and GIO functions accept and return strings in +<ulink url="https://en.wikipedia.org/wiki/UTF-8">UTF-8 encoding</ulink> +unless otherwise specified. +</para> + +<para> +Input strings to function calls are <emphasis>not</emphasis> checked to see if +they are valid UTF-8: it is the application developer’s responsibility to +validate input strings at the time of input, either at the program or library +boundary, and to only use valid UTF-8 string constants in their application. +If GLib were to UTF-8 validate all string inputs to all functions, there would +be a significant drop in performance. +</para> + +<para>Similarly, output strings from functions are guaranteed to be in UTF-8, +and this does not need to be validated by the calling function. If a function +returns invalid UTF-8 (and is not documented as doing so), that’s a bug. +</para> + +<para> +See <link linkend='g-utf8-validate'><function>g_utf8_validate()</function></link> +and <link linkend='g-utf8-make-valid'><function>g_utf8_make_valid()</function></link> +for validating UTF-8 input. +</para> +</refsect2> + +<refsect2> <title>Threads</title> <para> |