.. _rio:

Rio
---


Tested Software version 0.4.5 on Linux.
The homepage URL of this terminal is https://rioterm.com/.
Full results available at ucs-detect_ repository path
`data/rio.yaml <https://github.com/jquast/ucs-detect/blob/master/data/rio.yaml>`_.

.. _rioscores:

Score Breakdown
+++++++++++++++

Detailed breakdown of how scores are calculated for *Rio*:

.. table::
   :class: sphinx-datatable

   ===  ================================  ===========  ====================
     #  Score Type                        Raw Score    Final Scaled Score
   ===  ================================  ===========  ====================
     1  :ref:`WIDE <riowide>`             99.92%       99.9%
     2  :ref:`NARROW <rionarrow>`         99.96%       100.0%
     3  :ref:`ZWJ <riozwj>`               0.00%        0.0%
     4  :ref:`LANG <riolang>`             96.49%       96.5%
     5  :ref:`VS16 <riovs16>`             100.00%      100.0%
     6  :ref:`VS15 <riovs15>`             89.24%       *(excluded)*
     7  :ref:`SRI <riosri>`               0.00%        0.0%
     8  :ref:`SFZ <riosfz>`               100.00%      100.0%
     9  :ref:`RI <riori>`                 100.00%      100.0%
    10  :ref:`FEAT <riofeaturesdetails>`  62.50%       66.7%
    11  :ref:`Graphics <riographics>`     100%         100.0%
    12  :ref:`Resources <rioresources>`   54.3%        54.3%
   ===  ================================  ===========  ====================

**Score Comparison Plot:**

The following plot shows how this terminal's scores compare to all other terminals tested.

.. figure:: ../_static/plots/rio_scores_scaled.png
   :align: center
   :width: 800px

   Scaled scores comparison across all metrics (normalized 0-100%)

**Final Scaled Score Calculation:**

- Raw Final Score: 78.47%
  (weighted average: WIDE + NARROW + ZWJ + LANG + VS16 + 0.33 * SRI + 0.33 * SFZ + RI + CAP + 0.5 * GFX + 0.5 * RSC)
  the categorized 'average' absolute support level of this terminal.

  .. note::

     RSC (Resources) is a composite CPU, memory, and runtime score.
     RSC is weighted at 0.5 (half as powerful as other metrics).
     FEAT (Features) is the fraction of notable features supported.
     GFX (Graphics) scores 100% for modern protocols (iTerm2, Kitty),
     50% for legacy only (Sixel, ReGIS), 0% for none.

- Final Scaled Score: 73.0%
  (normalized across all terminals tested).
  *Final Scaled scores* are normalized (0-100%) relative to all terminals tested

**WIDE Score Details:**

Wide character support calculation:

- Total successful codepoints: 43559
- Total codepoints tested: 43592
- Formula: 43559 / 43592
- Result: 99.92%

**NARROW Score Details:**

Narrow character support calculation:

- Total successful codepoints: 36241
- Total codepoints tested: 36254
- Formula: 36241 / 36254
- Result: 99.96%

**ZWJ Score Details:**

Emoji ZWJ (Zero-Width Joiner) support calculation:

- Total successful sequences: 0
- Total sequences tested: 1445
- Formula: 0 / 1445
- Result: 0.00%

**VS16 Score Details:**

Variation Selector-16 support calculation:

- Errors: 0 of 426 codepoints tested
- Success rate: 100.0%
- Formula: 100.0 / 100
- Result: 100.00%

**VS15 Score Details** *(excluded from final score)*:

Variation Selector-15 support calculation:

- Errors: 17 of 158 codepoints tested
- Success rate: 89.2%
- Formula: 89.2 / 100
- Result: 89.24%

**SRI Score Details:**

Standalone Regional Indicator support calculation:

- Total successful codepoints: 0
- Total codepoints tested: 26
- Formula: 0 / 26
- Result: 0.00%

**SFZ Score Details:**

Standalone Fitzpatrick skin tone modifier support calculation:

- Total successful codepoints: 5
- Total codepoints tested: 5
- Formula: 5 / 5
- Result: 100.00%

**RI Score Details:**

Regional Indicator flag sequence support calculation:

- Total successful sequences: 262
- Total sequences tested: 262
- Formula: 262 / 262
- Result: 100.00%

.. _riofeaturesdetails:

**Features Score Details:**

Notable terminal features (10.0 / 16):

- :ref:`Set bracketed paste mode (2004) <riodecmodes>`: **yes**
- :ref:`Synchronized Output (2026) <riodecmodes>`: **yes**
- :ref:`Send FocusIn/FocusOut events (1004) <riodecmodes>`: **yes**
- :ref:`Enable SGR Mouse Mode (1006) <riodecmodes>`: **yes**
- :ref:`Grapheme Clustering (2027) <riodecmodes>`: **no**
- :ref:`Bracketed Paste MIME (5522) <riodecmodes>`: **no**
- :ref:`Kitty Keyboard <riokittykbd>`: **yes**
- :ref:`XTGETTCAP (Full) <rioxtgettcap>`: **yes**
- :ref:`Text Sizing (OSC 66) <riotextsizing>`: **no**
- :ref:`Kitty Clipboard Protocol <riodecmodes>`: **no**
- :ref:`OSC 52 Clipboard <rioosc52>`: **yes**
- :ref:`Kitty Pointer Shapes (OSC 22) <riodecmodes>`: **no**
- :ref:`Kitty Notifications (OSC 99) <riodecmodes>`: **no**
- :ref:`Color Report (OSC 10/11) <riodecmodes>`: **yes**
- :ref:`Terminal Identification (XTVERSION) <rioidentification>`: **yes**
- :ref:`Truecolor Detection <riotruecolor>`: **yes**

Raw score: 62.50%

**Graphics Score Details:**

Graphics protocol support (100%):

- Sixel: **yes**
- ReGIS: **no**
- iTerm2: **no**
- Kitty: **yes**

Scoring: 100% for modern (iTerm2/Kitty), 50% for legacy only (Sixel/ReGIS), 0% for none

**Resource Score Details:**


- Duration: 31.3s
- Mean CPU: 29.9%
- Mean RSS: 93.7 MB
- Resources Score: 54/100
- Note: log-scale composite cost = log(CPU+1) + log(RSS+1) + log(time+1)
- Scaled result: 54.3%

**LANG Score Details (Geometric Mean):**

Geometric mean calculation:

- Formula: (p₁ × p₂ × ... × pₙ)^(1/n) where n = 118 languages
- About `geometric mean <https://en.wikipedia.org/wiki/Geometric_mean>`_
- Result: 96.49%

.. _riowide:

Wide character support
++++++++++++++++++++++

Wide character support of *Rio* is **99.9%** (33 errors of 43592 codepoints tested).

Sequence of a WIDE character, from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  ==================================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  ==================================
     1  `U+0001F1F6 <https://codepoints.net/U+0001F1F6>`_  '\\U0001f1f6'  So                  2  REGIONAL INDICATOR SYMBOL LETTER Q
   ===  =================================================  =============  ==========  =========  ==================================

Total codepoints: 1


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xf0\x9f\x87\xb6|\\n12|\\n"
        🇶|
        12|


- See Line 42374 of `ucs_wide.txt <https://github.com/jquast/ucs-detect/blob/master/docs/ucs_example_files/ucs_wide.txt#L42374>`_ for this sequence in the example file.

Screenshot:

.. image:: ../_static/screenshots/Rio/wide.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 1.

.. _rionarrow:

Narrow character support
++++++++++++++++++++++++

Narrow character support of *Rio* is **100.0%** (13 errors of 36254 codepoints tested).

Sequence of a NARROW character, from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ==================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ==================
     1  `U+06DD <https://codepoints.net/U+06DD>`_  '\\u06dd'  Cf                  1  ARABIC END OF AYAH
   ===  =========================================  =========  ==========  =========  ==================

Total codepoints: 1


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xdb\x9d|\\n1|\\n"
        ۝|
        1|

- python `wcwidth.wcswidth()`_ measures width 1,
  while *Rio* measures width 0.

.. _riozwj:

Emoji ZWJ support
+++++++++++++++++

Compatibility of *Rio* with the Unicode Emoji ZWJ sequence table is **0.0%** (1445 errors of 1445 sequences tested).

Sequence of an Emoji ZWJ Sequence, from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  =================================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  =================================
     1  `U+0001F3C3 <https://codepoints.net/U+0001F3C3>`_  '\\U0001f3c3'  So                  2  RUNNER
     2  `U+0001F3FF <https://codepoints.net/U+0001F3FF>`_  '\\U0001f3ff'  Sk                  2  EMOJI MODIFIER FITZPATRICK TYPE-6
     3  `U+200D <https://codepoints.net/U+200D>`_          '\\u200d'      Cf                  0  ZERO WIDTH JOINER
     4  `U+2640 <https://codepoints.net/U+2640>`_          '\\u2640'      So                  1  FEMALE SIGN
     5  `U+FE0F <https://codepoints.net/U+FE0F>`_          '\\ufe0f'      Mn                  0  VARIATION SELECTOR-16
   ===  =================================================  =============  ==========  =========  =================================

Total codepoints: 5


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xf0\x9f\x8f\x83\xf0\x9f\x8f\xbf\xe2\x80\x8d\xe2\x99\x80\xef\xb8\x8f|\\n12|\\n"
        🏃🏿‍♀️|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/zwj.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 6.

.. _riovs16:

Variation Selector-16 support
+++++++++++++++++++++++++++++

Emoji VS-16 results for *Rio* is 0 errors
out of 426 total codepoints tested, 100.0% success.
All codepoint combinations with Variation Selector-16 tested were successful.

.. _riovs15:

Variation Selector-15 support
+++++++++++++++++++++++++++++

Emoji VS-15 results for *Rio* is 17 errors
out of 158 total codepoints tested, 89.2% success.
Sequence of a WIDE Emoji made NARROW by *Variation Selector-15*, from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =====================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =====================
     1  `U+274C <https://codepoints.net/U+274C>`_  '\\u274c'  So                  2  CROSS MARK
     2  `U+FE0E <https://codepoints.net/U+FE0E>`_  '\\ufe0e'  Mn                  0  VARIATION SELECTOR-15
   ===  =========================================  =========  ==========  =========  =====================

Total codepoints: 2


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe2\x9d\x8c\xef\xb8\x8e|\\n1|\\n"
        ❌︎|
        1|


Screenshot:

.. image:: ../_static/screenshots/Rio/vs15.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 1,
  while *Rio* measures width 2.


.. _riosri:

Standalone Regional Indicator support
+++++++++++++++++++++++++++++++++++++

Standalone Regional Indicator support of *Rio* is **0.0%** (26 errors of 26 codepoints tested).

Sequence of a standalone Regional Indicator, from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  ==================================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  ==================================
     1  `U+0001F1F3 <https://codepoints.net/U+0001F1F3>`_  '\\U0001f1f3'  So                  2  REGIONAL INDICATOR SYMBOL LETTER N
   ===  =================================================  =============  ==========  =========  ==================================

Total codepoints: 1


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xf0\x9f\x87\xb3|\\n12|\\n"
        🇳|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/sri.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 1.

.. _riosfz:

Standalone Fitzpatrick modifier support
+++++++++++++++++++++++++++++++++++++++

Standalone Fitzpatrick skin tone modifier support of *Rio* is **100.0%** (0 errors of 5 codepoints tested).

.. _riori:

Regional Indicator flag sequence support
++++++++++++++++++++++++++++++++++++++++

Regional Indicator flag sequence support of *Rio* is **100.0%** (0 errors of 262 sequences tested).

.. _riographics:

Graphics Protocol Support
+++++++++++++++++++++++++

*Rio* supports the following graphics protocols: Sixel_, `Kitty graphics`_.

**Detection Methods:**

- **Sixel** and **ReGIS**: Detected via the Device Attributes (DA1) query
  ``CSI c`` (``\x1b[c``). Extension code ``4`` indicates Sixel_ support,
  ``3`` ReGIS_.
- **Kitty graphics**: Detected by sending a Kitty graphics query and
  checking for an ``OK`` response.
- **iTerm2 inline images**: Detected via the iTerm2 capabilities query
  ``OSC 1337 ; Capabilities``.

**Device Attributes Response:**

- Extensions reported: 4, 6, 22
- Sixel_ indicator (``4``): present
- ReGIS_ indicator (``3``): not present

.. _Sixel: https://en.wikipedia.org/wiki/Sixel
.. _ReGIS: https://en.wikipedia.org/wiki/ReGIS
.. _`iTerm2 inline images`: https://iterm2.com/documentation-images.html

.. _riolang:

Language Support
++++++++++++++++

The following 96 languages were tested with 100% success:

(Jinan), (Yeonbyeon), Aja, Amarakaeri, Arabic, Standard, Assyrian Neo-Aramaic, Baatonum, Bamun, Belanda Viri, Bora, Catalan (2), Chickasaw, Chinantec, Chiltepec, Chinese, Gan, Chinese, Hakka, Chinese, Jinyu, Chinese, Mandarin (Beijing), Chinese, Mandarin (Guiyang), Chinese, Mandarin (Harbin), Chinese, Mandarin (Nanjing), Chinese, Mandarin (Simplified), Chinese, Mandarin (Tianjin), Chinese, Mandarin (Traditional), Chinese, Min Nan, Chinese, Wu, Chinese, Xiang, Chinese, Yue, Colorado, Dagaare, Southern, Dangme, Dari, Dendi, Dinka, Northeastern, Ditammari, Dzongkha, Evenki, Farsi, Western, Fon, French (Welche), Fur, Ga, Gen, Gilyak, Gumuz, Japanese, Japanese (Osaka), Japanese (Tokyo), Kabyle, Korean, Lamnso', Lao, Lingala (tones), Maldivian, Maori (2), Mazahua Central, Mirandese, Mixtec, Metlatónoc, Mongolian, Halh (Mongolian), Mòoré, Nanai, Navajo, Nuosu, Orok, Otomi, Mezquital, Panjabi, Eastern, Panjabi, Western, Pashto, Northern, Picard, Pular (Adlam), Saint Lucian Creole French, Secoya, Seraiki, Shan, Shipibo-Conibo, Sinhala, Siona, South Azerbaijani, Tagalog (Tagalog), Tai Dam, Tamazight, Central Atlas, Tamil, Tamil (Sri Lanka), Tem, Thai, Thai (2), Tibetan, Central, Ticuna, Uduk, Veps, Vietnamese, Vietnamese (Han nom), Waama, Yaneshaʼ, Yiddish, Eastern, Yoruba, Éwé.

The following 22 languages are not fully supported:

.. table::
   :class: sphinx-datatable

   ====================================================  ==========  =========  =============
   lang                                                    n_errors    n_total  pct_success
   ====================================================  ==========  =========  =============
   :ref:`Javanese (Javanese) <riolangjavanesejavanese>`         321        530  39.4%
   :ref:`Sanskrit <riolangsanskrit>`                            145        493  70.6%
   :ref:`Malayalam <riolangmalayalam>`                          246        845  70.9%
   :ref:`Bengali <riolangbengali>`                               96        385  75.1%
   :ref:`Marathi <riolangmarathi>`                               86        391  78.0%
   :ref:`Hindi <riolanghindi>`                                   82        390  79.0%
   :ref:`Sanskrit (Grantha) <riolangsanskritgrantha>`            61        293  79.2%
   :ref:`Khmer, Central <riolangkhmercentral>`                   90        443  79.7%
   :ref:`Maithili <riolangmaithili>`                             71        357  80.1%
   :ref:`Nepali <riolangnepali>`                                 69        352  80.4%
   :ref:`Tamang, Eastern <riolangtamangeastern>`                 11         70  84.3%
   :ref:`Gujarati <riolanggujarati>`                             50        343  85.4%
   :ref:`Magahi <riolangmagahi>`                                 43        314  86.3%
   :ref:`Bhojpuri <riolangbhojpuri>`                             41        313  86.9%
   :ref:`Telugu <riolangtelugu>`                                 42        384  89.1%
   :ref:`Kannada <riolangkannada>`                               14        287  95.1%
   :ref:`Chakma <riolangchakma>`                                 13        267  95.1%
   :ref:`Burmese <riolangburmese>`                               10        268  96.3%
   :ref:`Mon <riolangmon>`                                        7        332  97.9%
   :ref:`Urdu (2) <riolangurdu2>`                                 1         82  98.8%
   :ref:`Khün <riolangkhn>`                                       4        396  99.0%
   :ref:`Urdu <riolangurdu>`                                      1        110  99.1%
   ====================================================  ==========  =========  =============

.. _riolangjavanesejavanese:

Javanese (Javanese)
^^^^^^^^^^^^^^^^^^^

Sequence of language *Javanese (Javanese)* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ==========================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ==========================
     1  `U+A98F <https://codepoints.net/U+A98F>`_  '\\ua98f'  Lo                  1  JAVANESE LETTER KA
     2  `U+A9BA <https://codepoints.net/U+A9BA>`_  '\\ua9ba'  Mc                  0  JAVANESE VOWEL SIGN TALING
     3  `U+A9B4 <https://codepoints.net/U+A9B4>`_  '\\ua9b4'  Mc                  0  JAVANESE VOWEL SIGN TARUNG
   ===  =========================================  =========  ==========  =========  ==========================

Total codepoints: 3


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xea\xa6\x8f\xea\xa6\xba\xea\xa6\xb4|\\n12|\\n"
        ꦏꦺꦴ|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Javanese__Javanese_.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangsanskrit:

Sanskrit
^^^^^^^^

Sequence of language *Sanskrit* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0924 <https://codepoints.net/U+0924>`_  '\\u0924'  Lo                  1  DEVANAGARI LETTER TA
     4  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa4\xbf|\\n12|\\n"
        क्ति|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Sanskrit.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolangmalayalam:

Malayalam
^^^^^^^^^

Sequence of language *Malayalam* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0D15 <https://codepoints.net/U+0D15>`_  '\\u0d15'  Lo                  1  MALAYALAM LETTER KA
     2  `U+0D4D <https://codepoints.net/U+0D4D>`_  '\\u0d4d'  Mn                  0  MALAYALAM SIGN VIRAMA
     3  `U+0D15 <https://codepoints.net/U+0D15>`_  '\\u0d15'  Lo                  1  MALAYALAM LETTER KA
     4  `U+0D3E <https://codepoints.net/U+0D3E>`_  '\\u0d3e'  Mc                  0  MALAYALAM VOWEL SIGN AA
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xb4\x95\xe0\xb5\x8d\xe0\xb4\x95\xe0\xb4\xbe|\\n12|\\n"
        ക്കാ|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Malayalam.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangbengali:

Bengali
^^^^^^^

Sequence of language *Bengali* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =====================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =====================
     1  `U+0995 <https://codepoints.net/U+0995>`_  '\\u0995'  Lo                  1  BENGALI LETTER KA
     2  `U+09BF <https://codepoints.net/U+09BF>`_  '\\u09bf'  Mc                  0  BENGALI VOWEL SIGN I
     3  `U+0982 <https://codepoints.net/U+0982>`_  '\\u0982'  Mc                  0  BENGALI SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  =====================

Total codepoints: 3


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa6\x95\xe0\xa6\xbf\xe0\xa6\x82|\\n12|\\n"
        কিং|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Bengali.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangmarathi:

Marathi
^^^^^^^

Sequence of language *Marathi* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0924 <https://codepoints.net/U+0924>`_  '\\u0924'  Lo                  1  DEVANAGARI LETTER TA
     4  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa4\xbf|\\n12|\\n"
        क्ति|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Marathi.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolanghindi:

Hindi
^^^^^

Sequence of language *Hindi* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0924 <https://codepoints.net/U+0924>`_  '\\u0924'  Lo                  1  DEVANAGARI LETTER TA
     4  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa4\xbf|\\n12|\\n"
        क्ति|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Hindi.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolangsanskritgrantha:

Sanskrit (Grantha)
^^^^^^^^^^^^^^^^^^

Sequence of language *Sanskrit (Grantha)* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  =====================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  =====================
     1  `U+00011315 <https://codepoints.net/U+00011315>`_  '\\U00011315'  Lo                  1  GRANTHA LETTER KA
     2  `U+0001133E <https://codepoints.net/U+0001133E>`_  '\\U0001133e'  Mc                  0  GRANTHA VOWEL SIGN AA
     3  `U+00011302 <https://codepoints.net/U+00011302>`_  '\\U00011302'  Mc                  0  GRANTHA SIGN ANUSVARA
   ===  =================================================  =============  ==========  =========  =====================

Total codepoints: 3


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xf0\x91\x8c\x95\xf0\x91\x8c\xbe\xf0\x91\x8c\x82|\\n12|\\n"
        𑌕𑌾𑌂|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Sanskrit__Grantha_.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangkhmercentral:

Khmer, Central
^^^^^^^^^^^^^^

Sequence of language *Khmer, Central* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ===================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ===================
     1  `U+1780 <https://codepoints.net/U+1780>`_  '\\u1780'  Lo                  1  KHMER LETTER KA
     2  `U+17D2 <https://codepoints.net/U+17D2>`_  '\\u17d2'  Mn                  0  KHMER SIGN COENG
     3  `U+178A <https://codepoints.net/U+178A>`_  '\\u178a'  Lo                  1  KHMER LETTER DA
     4  `U+17C5 <https://codepoints.net/U+17C5>`_  '\\u17c5'  Mc                  0  KHMER VOWEL SIGN AU
   ===  =========================================  =========  ==========  =========  ===================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe1\x9e\x80\xe1\x9f\x92\xe1\x9e\x8a\xe1\x9f\x85|\\n12|\\n"
        ក្ដៅ|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Khmer__Central.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangmaithili:

Maithili
^^^^^^^^

Sequence of language *Maithili* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0924 <https://codepoints.net/U+0924>`_  '\\u0924'  Lo                  1  DEVANAGARI LETTER TA
     4  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa4\xbf|\\n12|\\n"
        क्ति|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Maithili.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolangnepali:

Nepali
^^^^^^

Sequence of language *Nepali* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0924 <https://codepoints.net/U+0924>`_  '\\u0924'  Lo                  1  DEVANAGARI LETTER TA
     4  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa4\xbf|\\n12|\\n"
        क्ति|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Nepali.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolangtamangeastern:

Tamang, Eastern
^^^^^^^^^^^^^^^

Sequence of language *Tamang, Eastern* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0924 <https://codepoints.net/U+0924>`_  '\\u0924'  Lo                  1  DEVANAGARI LETTER TA
     4  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa4\xbf|\\n12|\\n"
        क्ति|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Tamang__Eastern.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolanggujarati:

Gujarati
^^^^^^^^

Sequence of language *Gujarati* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ======================
     1  `U+0A95 <https://codepoints.net/U+0A95>`_  '\\u0a95'  Lo                  1  GUJARATI LETTER KA
     2  `U+0ACD <https://codepoints.net/U+0ACD>`_  '\\u0acd'  Mn                  0  GUJARATI SIGN VIRAMA
     3  `U+0A95 <https://codepoints.net/U+0A95>`_  '\\u0a95'  Lo                  1  GUJARATI LETTER KA
     4  `U+0ABE <https://codepoints.net/U+0ABE>`_  '\\u0abe'  Mc                  0  GUJARATI VOWEL SIGN AA
   ===  =========================================  =========  ==========  =========  ======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xaa\x95\xe0\xab\x8d\xe0\xaa\x95\xe0\xaa\xbe|\\n12|\\n"
        ક્કા|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Gujarati.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangmagahi:

Magahi
^^^^^^

Sequence of language *Magahi* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0924 <https://codepoints.net/U+0924>`_  '\\u0924'  Lo                  1  DEVANAGARI LETTER TA
     4  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa4\xbf|\\n12|\\n"
        क्ति|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Magahi.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolangbhojpuri:

Bhojpuri
^^^^^^^^

Sequence of language *Bhojpuri* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0915 <https://codepoints.net/U+0915>`_  '\\u0915'  Lo                  1  DEVANAGARI LETTER KA
     2  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     3  `U+0918 <https://codepoints.net/U+0918>`_  '\\u0918'  Lo                  1  DEVANAGARI LETTER GHA
     4  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
     5  `U+0918 <https://codepoints.net/U+0918>`_  '\\u0918'  Lo                  1  DEVANAGARI LETTER GHA
     6  `U+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
     7  `U+094D <https://codepoints.net/U+094D>`_  '\\u094d'  Mn                  0  DEVANAGARI SIGN VIRAMA
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 7


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\x98\xe0\xa5\x8d\xe0\xa4\x98\xe0\xa4\xbf\xe0\xa5\x8d|\\n12|\\n"
        क्घ्घि्|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Bhojpuri.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 4.

.. _riolangtelugu:

Telugu
^^^^^^

Sequence of language *Telugu* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ====================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ====================
     1  `U+0C15 <https://codepoints.net/U+0C15>`_  '\\u0c15'  Lo                  1  TELUGU LETTER KA
     2  `U+0C41 <https://codepoints.net/U+0C41>`_  '\\u0c41'  Mc                  0  TELUGU VOWEL SIGN U
     3  `U+0C02 <https://codepoints.net/U+0C02>`_  '\\u0c02'  Mc                  0  TELUGU SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  ====================

Total codepoints: 3


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xb0\x95\xe0\xb1\x81\xe0\xb0\x82|\\n12|\\n"
        కుం|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Telugu.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangkannada:

Kannada
^^^^^^^

Sequence of language *Kannada* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =====================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =====================
     1  `U+0C95 <https://codepoints.net/U+0C95>`_  '\\u0c95'  Lo                  1  KANNADA LETTER KA
     2  `U+0CBE <https://codepoints.net/U+0CBE>`_  '\\u0cbe'  Mc                  0  KANNADA VOWEL SIGN AA
     3  `U+0C82 <https://codepoints.net/U+0C82>`_  '\\u0c82'  Mc                  0  KANNADA SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  =====================

Total codepoints: 3


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe0\xb2\x95\xe0\xb2\xbe\xe0\xb2\x82|\\n12|\\n"
        ಕಾಂ|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Kannada.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangchakma:

Chakma
^^^^^^

Sequence of language *Chakma* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  ===================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  ===================
     1  `U+00011107 <https://codepoints.net/U+00011107>`_  '\\U00011107'  Lo                  1  CHAKMA LETTER KAA
     2  `U+00011133 <https://codepoints.net/U+00011133>`_  '\\U00011133'  Mn                  0  CHAKMA VIRAMA
     3  `U+00011120 <https://codepoints.net/U+00011120>`_  '\\U00011120'  Lo                  1  CHAKMA LETTER YYAA
     4  `U+0001112C <https://codepoints.net/U+0001112C>`_  '\\U0001112c'  Mc                  0  CHAKMA VOWEL SIGN E
   ===  =================================================  =============  ==========  =========  ===================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xf0\x91\x84\x87\xf0\x91\x84\xb3\xf0\x91\x84\xa0\xf0\x91\x84\xac|\\n12|\\n"
        𑄇𑄳𑄠𑄬|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Chakma.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangburmese:

Burmese
^^^^^^^

Sequence of language *Burmese* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ================================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ================================
     1  `U+1000 <https://codepoints.net/U+1000>`_  '\\u1000'  Lo                  1  MYANMAR LETTER KA
     2  `U+103B <https://codepoints.net/U+103B>`_  '\\u103b'  Mc                  0  MYANMAR CONSONANT SIGN MEDIAL YA
     3  `U+1031 <https://codepoints.net/U+1031>`_  '\\u1031'  Mc                  0  MYANMAR VOWEL SIGN E
   ===  =========================================  =========  ==========  =========  ================================

Total codepoints: 3


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe1\x80\x80\xe1\x80\xbb\xe1\x80\xb1|\\n12|\\n"
        ကျေ|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Burmese.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangmon:

Mon
^^^

Sequence of language *Mon* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ================================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ================================
     1  `U+1007 <https://codepoints.net/U+1007>`_  '\\u1007'  Lo                  1  MYANMAR LETTER JA
     2  `U+103C <https://codepoints.net/U+103C>`_  '\\u103c'  Mc                  0  MYANMAR CONSONANT SIGN MEDIAL RA
     3  `U+1031 <https://codepoints.net/U+1031>`_  '\\u1031'  Mc                  0  MYANMAR VOWEL SIGN E
   ===  =========================================  =========  ==========  =========  ================================

Total codepoints: 3


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe1\x80\x87\xe1\x80\xbc\xe1\x80\xb1|\\n12|\\n"
        ဇြေ|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Mon.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangurdu2:

Urdu (2)
^^^^^^^^

Sequence of language *Urdu (2)* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ===============================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ===============================
     1  `U+0601 <https://codepoints.net/U+0601>`_  '\\u0601'  Cf                  1  ARABIC SIGN SANAH
     2  `U+06F1 <https://codepoints.net/U+06F1>`_  '\\u06f1'  Nd                  1  EXTENDED ARABIC-INDIC DIGIT ONE
   ===  =========================================  =========  ==========  =========  ===============================

Total codepoints: 2


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xd8\x81\xdb\xb1|\\n12|\\n"
        ؁۱|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Urdu__2_.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px


.. _riolangkhn:

Khün
^^^^

Sequence of language *Khün* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =================================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =================================
     1  `U+1A23 <https://codepoints.net/U+1A23>`_  '\\u1a23'  Lo                  1  TAI THAM LETTER LOW KA
     2  `U+1A55 <https://codepoints.net/U+1A55>`_  '\\u1a55'  Mc                  0  TAI THAM CONSONANT SIGN MEDIAL RA
     3  `U+1A6E <https://codepoints.net/U+1A6E>`_  '\\u1a6e'  Mc                  0  TAI THAM VOWEL SIGN E
     4  `U+1A60 <https://codepoints.net/U+1A60>`_  '\\u1a60'  Mn                  0  TAI THAM SIGN SAKOT
   ===  =========================================  =========  ==========  =========  =================================

Total codepoints: 4


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xe1\xa8\xa3\xe1\xa9\x95\xe1\xa9\xae\xe1\xa9\xa0|\\n12|\\n"
        ᨣᩕᩮ᩠|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Khün.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 3.

.. _riolangurdu:

Urdu
^^^^

Sequence of language *Urdu* from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ===============================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ===============================
     1  `U+0601 <https://codepoints.net/U+0601>`_  '\\u0601'  Cf                  1  ARABIC SIGN SANAH
     2  `U+06F1 <https://codepoints.net/U+06F1>`_  '\\u06f1'  Nd                  1  EXTENDED ARABIC-INDIC DIGIT ONE
   ===  =========================================  =========  ==========  =========  ===============================

Total codepoints: 2


- Shell test using `printf(1)`_, ``'|'`` should align in output::

        $ printf "\xd8\x81\xdb\xb1|\\n12|\\n"
        ؁۱|
        12|


Screenshot:

.. image:: ../_static/screenshots/Rio/lang_Urdu.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 804px
   :height: 325px

- python `wcwidth.wcswidth()`_ measures width 2,
  while *Rio* measures width 1.

.. _riodecmodes:

DEC Private Modes Support
+++++++++++++++++++++++++

DEC private modes results for *Rio*: 4 changeable modes
of 4 supported out of 8 total modes tested (50.0% support, 50.0% changeable).

Complete list of DEC private modes tested:

.. table::
   :class: sphinx-datatable

   ======  =====================  ===================================  ===========  ============  =========
     Mode  Name                   Description                          Supported    Changeable    Enabled
   ======  =====================  ===================================  ===========  ============  =========
     1004  FOCUS_IN_OUT_EVENTS    Send FocusIn/FocusOut events         Yes          Yes           No
     1006  MOUSE_EXTENDED_SGR     Enable SGR Mouse Mode                Yes          Yes           No
     2004  BRACKETED_PASTE        Set bracketed paste mode             Yes          Yes           No
     2026  SYNCHRONIZED_OUTPUT    Synchronized Output                  Yes          Yes           No
     2027  GRAPHEME_CLUSTERING    Grapheme Clustering                  No           No            No
     2031  COLOR_PALETTE_UPDATES  Color palette updates                No           No            No
     2048  IN_BAND_WINDOW_RESIZE  In-Band Window Resize Notifications  No           No            No
     5522  BRACKETED_PASTE_MIME   Bracketed Paste MIME                 No           No            No
   ======  =====================  ===================================  ===========  ============  =========

**Summary**: 4 changeable, 4 not changeable.

.. _riokittykbd:

Kitty Keyboard Protocol
+++++++++++++++++++++++

*Rio* supports the `Kitty keyboard protocol`_.

.. table::
   :class: sphinx-datatable

   ===  ===============================  =====================  =======
     #  Flag                             Key                    State
   ===  ===============================  =====================  =======
     1  Disambiguate escape codes        ``disambiguate``       No
     2  Report event types               ``report_events``      No
     3  Report alternate keys            ``report_alternates``  No
     4  Report all keys as escape codes  ``report_all_keys``    No
     5  Report associated text           ``report_text``        No
   ===  ===============================  =====================  =======

Detection is performed by sending ``CSI ? u`` to query the current
progressive enhancement flags. A terminal that supports this protocol
responds with the active flags value.

.. _`Kitty keyboard protocol`: https://sw.kovidgoyal.net/kitty/keyboard-protocol/

.. _rioxtgettcap:

XTGETTCAP (Terminfo Capabilities)
+++++++++++++++++++++++++++++++++

*Rio* supports the ``XTGETTCAP`` sequence and reports **204** terminfo capabilities (Full).

.. table::
   :class: sphinx-datatable

   ===  ============  =============================================  ================================================================
     #  Capability    Description                                    Value
   ===  ============  =============================================  ================================================================
     1  AX            Supports default colors                        *(empty)*
     2  BD            Enter bold mode (kitty)                        ``\E[?2004l``
     3  BE            Exit bold mode (kitty)                         ``\E[?2004h``
     4  Cr            Set cursor color                               ``\E]112\a``
     5  Cs            Reset cursor color                             ``\E]12;%p1%s\a``
     6  E3            Erase scrollback                               ``\E[3J``
     7  Ms            Clipboard set                                  ``\E]52;%p1%s;%p2%s\a``
     8  PE            Presentation end (kitty)                       ``\E[201~``
     9  PS            Presentation start (kitty)                     ``\E[200~``
    10  RGB           Bits per color channel (8 = 24-bit truecolor)  ``8/8/8``
    11  Se            Reset underline style                          ``\E[0 q``
    12  Smulx         Styled underline                               ``\E[4:%p1%dm``
    13  Ss            Set underline style                            ``\E[%p1%d q``
    14  Sync          Synchronized output                            ``\EP=%p1%ds\E\``
    15  TN            Terminal name                                  ``rio``
    16  XF            Extended functionality                         *(empty)*
    17  XT            Xterm extensions                               *(empty)*
    18  acsc          Alternate character set                        ````aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~``
    19  am            Auto right margin                              *(empty)*
    20  bce           Background color erase                         *(empty)*
    21  bel           Bell                                           ``\a``
    22  blink         Enter blink mode                               ``\E[5m``
    23  bold          Enter bold mode                                ``\E[1m``
    24  ccc           Can redefine colors                            *(empty)*
    25  civis         Hide cursor                                    ``\E[?25l``
    26  clear         Clear screen                                   ``\E[H\E[2J``
    27  cnorm         Normal cursor                                  ``\E[?12l\E[?25h``
    28  colors        Max colors on screen                           ``256``
    29  cols          Columns                                        ``80``
    30  cr            Carriage return                                ``\r``
    31  csr           Change scroll region                           ``\E[%i%p1%d;%p2%dr``
    32  cub           Cursor left n                                  ``\E[%p1%dD``
    33  cub1          Cursor left                                    ``\b``
    34  cud           Cursor down n                                  ``\E[%p1%dB``
    35  cud1          Cursor down                                    ``\n``
    36  cuf           Cursor right n                                 ``\E[%p1%dC``
    37  cuf1          Cursor right                                   ``\E[C``
    38  cup           Cursor address                                 ``\E[%i%p1%d;%p2%dH``
    39  cuu           Cursor up n                                    ``\E[%p1%dA``
    40  cuu1          Cursor up                                      ``\E[A``
    41  cvvis         Very visible cursor                            ``\E[?12;25h``
    42  dch           Delete n characters                            ``\E[%p1%dP``
    43  dch1          Delete character                               ``\E[P``
    44  dim           Enter dim mode                                 ``\E[2m``
    45  dl            Delete n lines                                 ``\E[%p1%dM``
    46  dl1           Delete line                                    ``\E[M``
    47  dsl           Disable status line                            ``\E]2;\a``
    48  ech           Erase characters                               ``\E[%p1%dX``
    49  ed            Clear to end of screen                         ``\E[J``
    50  el            Clear to end of line                           ``\E[K``
    51  el1           Clear to start of line                         ``\E[1K``
    52  flash         Flash screen                                   ``\E[?5h$<100/>\E[?5l``
    53  fsl           From status line                               ``\a``
    54  home          Cursor home                                    ``\E[H``
    55  hpa           Horizontal position                            ``\E[%i%p1%dG``
    56  hs            Has status line                                *(empty)*
    57  ht            Horizontal tab                                 ``\t``
    58  hts           Set tab stop                                   ``\EH``
    59  ich           Insert n characters                            ``\E[%p1%d@``
    60  il            Insert n lines                                 ``\E[%p1%dL``
    61  il1           Insert line                                    ``\E[L``
    62  ind           Scroll forward                                 ``\n``
    63  indn          Scroll forward n                               ``\E[%p1%dS``
    64  initc         Initialize color                               ``\E]4;%p1%d;rgb:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{100...``
    65  invis         Invisible cursor                               ``\E[8m``
    66  is2           Init 2 string                                  ``\E[!p\E[?3;4l\E[4l\E>``
    67  it            Init tabs                                      ``8``
    68  kDC           Shifted delete-char key                        ``\E[3;2~``
    69  kDC3          Alt delete-char key                            ``\E[3;3~``
    70  kDC4          Alt-Shift delete-char key                      ``\E[3;4~``
    71  kDC5          Ctrl delete-char key                           ``\E[3;5~``
    72  kDC6          Ctrl-Shift delete-char key                     ``\E[3;6~``
    73  kDC7          Ctrl-Alt delete-char key                       ``\E[3;7~``
    74  kDN           Shifted down-arrow key                         ``\E[1;2B``
    75  kDN3          Alt down-arrow key                             ``\E[1;3B``
    76  kDN4          Alt-Shift down-arrow key                       ``\E[1;4B``
    77  kDN5          Ctrl down-arrow key                            ``\E[1;5B``
    78  kDN6          Ctrl-Shift down-arrow key                      ``\E[1;6B``
    79  kDN7          Ctrl-Alt down-arrow key                        ``\E[1;7B``
    80  kEND          Shifted end key                                ``\E[1;2F``
    81  kEND3         Alt end key                                    ``\E[1;3F``
    82  kEND4         Alt-Shift end key                              ``\E[1;4F``
    83  kEND5         Ctrl end key                                   ``\E[1;5F``
    84  kEND6         Ctrl-Shift end key                             ``\E[1;6F``
    85  kEND7         Ctrl-Alt end key                               ``\E[1;7F``
    86  kHOM          Shifted home key                               ``\E[1;2H``
    87  kHOM3         Alt home key                                   ``\E[1;3H``
    88  kHOM4         Alt-Shift home key                             ``\E[1;4H``
    89  kHOM5         Ctrl home key                                  ``\E[1;5H``
    90  kHOM6         Ctrl-Shift home key                            ``\E[1;6H``
    91  kHOM7         Ctrl-Alt home key                              ``\E[1;7H``
    92  kIC           Shifted insert-char key                        ``\E[2;2~``
    93  kIC3          Alt insert-char key                            ``\E[2;3~``
    94  kIC4          Alt-Shift insert-char key                      ``\E[2;4~``
    95  kIC5          Ctrl insert-char key                           ``\E[2;5~``
    96  kIC6          Ctrl-Shift insert-char key                     ``\E[2;6~``
    97  kIC7          Ctrl-Alt insert-char key                       ``\E[2;7~``
    98  kLFT          Shifted left-arrow key                         ``\E[1;2D``
    99  kLFT3         Alt left-arrow key                             ``\E[1;3D``
   100  kLFT4         Alt-Shift left-arrow key                       ``\E[1;4D``
   101  kLFT5         Ctrl left-arrow key                            ``\E[1;5D``
   102  kLFT6         Ctrl-Shift left-arrow key                      ``\E[1;6D``
   103  kLFT7         Ctrl-Alt left-arrow key                        ``\E[1;7D``
   104  kNXT          Shifted next-page key                          ``\E[6;2~``
   105  kNXT3         Alt next-page key                              ``\E[6;3~``
   106  kNXT4         Alt-Shift next-page key                        ``\E[6;4~``
   107  kNXT5         Ctrl next-page key                             ``\E[6;5~``
   108  kNXT6         Ctrl-Shift next-page key                       ``\E[6;6~``
   109  kNXT7         Ctrl-Alt next-page key                         ``\E[6;7~``
   110  kPRV          Shifted previous-page key                      ``\E[5;2~``
   111  kPRV3         Alt previous-page key                          ``\E[5;3~``
   112  kPRV4         Alt-Shift previous-page key                    ``\E[5;4~``
   113  kPRV5         Ctrl previous-page key                         ``\E[5;5~``
   114  kPRV6         Ctrl-Shift previous-page key                   ``\E[5;6~``
   115  kPRV7         Ctrl-Alt previous-page key                     ``\E[5;7~``
   116  kRIT          Shifted right-arrow key                        ``\E[1;2C``
   117  kRIT3         Alt right-arrow key                            ``\E[1;3C``
   118  kRIT4         Alt-Shift right-arrow key                      ``\E[1;4C``
   119  kRIT5         Ctrl right-arrow key                           ``\E[1;5C``
   120  kRIT6         Ctrl-Shift right-arrow key                     ``\E[1;6C``
   121  kRIT7         Ctrl-Alt right-arrow key                       ``\E[1;7C``
   122  kUP           Shifted up-arrow key                           ``\E[1;2A``
   123  kUP3          Alt up-arrow key                               ``\E[1;3A``
   124  kUP4          Alt-Shift up-arrow key                         ``\E[1;4A``
   125  kUP5          Ctrl up-arrow key                              ``\E[1;5A``
   126  kUP6          Ctrl-Shift up-arrow key                        ``\E[1;6A``
   127  kUP7          Ctrl-Alt up-arrow key                          ``\E[1;7A``
   128  kb2           Keypad center                                  ``\EOE``
   129  kbs           Backspace key                                  ````
   130  kcbt          Back-tab key                                   ``\E[Z``
   131  kcub1         Left arrow key                                 ``\EOD``
   132  kcud1         Down arrow key                                 ``\EOB``
   133  kcuf1         Right arrow key                                ``\EOC``
   134  kcuu1         Up arrow key                                   ``\EOA``
   135  kdch1         Delete character key                           ``\E[3~``
   136  kend          End key                                        ``\EOF``
   137  kent          Enter/send key                                 ``\EOM``
   138  kf1           Function key F1                                ``\EOP``
   139  kf10          Function key F10                               ``\E[21~``
   140  kf11          Function key F11                               ``\E[23~``
   141  kf12          Function key F12                               ``\E[24~``
   142  kf2           Function key F2                                ``\EOQ``
   143  kf3           Function key F3                                ``\EOR``
   144  kf4           Function key F4                                ``\EOS``
   145  kf5           Function key F5                                ``\E[15~``
   146  kf6           Function key F6                                ``\E[17~``
   147  kf7           Function key F7                                ``\E[18~``
   148  kf8           Function key F8                                ``\E[19~``
   149  kf9           Function key F9                                ``\E[20~``
   150  khome         Home key                                       ``\EOH``
   151  kich1         Insert character key                           ``\E[2~``
   152  kind          Scroll-down key                                ``\E[1;2B``
   153  km            Has meta key                                   *(empty)*
   154  kmous         Mouse key                                      ``\E[M``
   155  knp           Next page key                                  ``\E[6~``
   156  kpp           Previous page key                              ``\E[5~``
   157  kri           Scroll-up key                                  ``\E[1;2A``
   158  kxIN          Keyboard in (kitty)                            ``\E[I``
   159  kxOUT         Keyboard out (kitty)                           ``\E[O``
   160  lines         Lines                                          ``24``
   161  mc5i          Will not echo input                            *(empty)*
   162  mir           Move in insert mode                            *(empty)*
   163  msgr          Move in standout mode                          *(empty)*
   164  npc           No pad character                               *(empty)*
   165  oc            Original colors                                ``\E]104\a``
   166  op            Original pair                                  ``\E[39;49m``
   167  pairs         Max color pairs                                ``32767``
   168  rc            Restore cursor                                 ``\E8``
   169  rep           Repeat character                               ``%p1%c\E[%p2%{1}%-%db``
   170  rev           Enter reverse mode                             ``\E[7m``
   171  ri            Reverse index                                  ``\EM``
   172  rin           Scroll reverse n                               ``\E[%p1%dT``
   173  ritm          Exit italics mode                              ``\E[23m``
   174  rmacs         Exit alternate charset mode                    ``\E(B``
   175  rmam          Disable line wrap                              ``\E[?7l``
   176  rmcup         Exit alt screen                                ``\E[?1049l\E[23;0;0t``
   177  rmir          Exit insert mode                               ``\E[4l``
   178  rmkx          Keypad local mode                              ``\E[?1l\E>``
   179  rmm           Reset meta mode                                ``\E[?1034l``
   180  rmso          Exit standout mode                             ``\E[27m``
   181  rmul          Exit underline mode                            ``\E[24m``
   182  rs1           Reset string 1                                 ``\Ec\E]104\a``
   183  rs2           Reset string 2                                 ``\E[!p\E[?3;4l\E[4l\E>``
   184  sc            Save cursor                                    ``\E7``
   185  setab         Set background color                           ``\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%...``
   186  setaf         Set foreground color                           ``\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p...``
   187  sgr           Set attributes                                 ``%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p5%t;2%;%?%p2%t;4%;%...``
   188  sgr0          Reset attributes                               ``\E(B\E[m``
   189  sitm          Enter italics mode                             ``\E[3m``
   190  smacs         Enter alternate charset mode                   ``\E(0``
   191  smam          Enable line wrap                               ``\E[?7h``
   192  smcup         Enter alt screen                               ``\E[?1049h\E[22;0;0t``
   193  smir          Enter insert mode                              ``\E[4h``
   194  smkx          Keypad transmit mode                           ``\E[?1h\E=``
   195  smso          Enter standout mode                            ``\E[7m``
   196  smul          Enter underline mode                           ``\E[4m``
   197  tbc           Clear all tabs                                 ``\E[3g``
   198  tsl           To status line                                 ``\E]2;``
   199  u6            CPR response format                            ``\E[%i%d;%dR``
   200  u7            CPR request                                    ``\E[6n``
   201  u8            DA response format                             ``\E[?%[;0123456789]c``
   202  u9            DA request                                     ``\E[c``
   203  vpa           Vertical position                              ``\E[%i%p1%dd``
   204  xenl          Newline glitch                                 *(empty)*
   ===  ============  =============================================  ================================================================

The ``XTGETTCAP`` sequence (``DCS + q Pt ST``) allows applications to query
terminfo capabilities directly from the terminal emulator, rather than relying
on the system terminfo database.

.. _riotextsizing:

Text Sizing Protocol (OSC 66)
+++++++++++++++++++++++++++++

*Rio* does not support the `Text Sizing protocol`_.

.. _`Text Sizing protocol`: https://sw.kovidgoyal.net/kitty/text-sizing-protocol/

.. _riotruecolor:

Truecolor Support
+++++++++++++++++

*Rio* supports 24-bit truecolor, detectable via:

- XTGETTCAP (RGB capability): **yes (RGB)**
- DECRQSS (truecolor probe): **no**
- COLORTERM: **yes (truecolor)**

.. _rioosc52:

OSC 52 Clipboard Support
++++++++++++++++++++++++

*Rio* supports OSC 52 clipboard operations
(detected via XTGETTCAP Ms).

- DA1 extension 52: **no**
- XTGETTCAP Ms: **yes**

.. _rioidentification:

Terminal Identification
+++++++++++++++++++++++

*Rio* is identified as **Rio**
version **0.4.5**
(detected via XTVERSION + XTGETTCAP TN).

- XTVERSION (raw): **Rio 0.4.5**
- XTVERSION: **yes**
- XTGETTCAP TN: **yes** (rio)
- ENQ: **no**
- TERM_PROGRAM: **yes** (rio)
- TERM: **yes** (rio)

.. _rioreproduce:

Reproduction
++++++++++++

To reproduce these results for *Rio*, install and run ucs-detect_
with the following commands::

    uvx ucs-detect --rerun data/rio.yaml

.. _riotime:

.. _rioresources:

Test Performance
++++++++++++++++

The test suite completed in **31.31 seconds** (31s).

- **Mean CPU**: 29.9%
- **Mean RSS**: 93.7 MB
- **Total time**: 31.3s

.. figure:: ../_static/profiles/Rio_cpu.png
   :alt: CPU usage over time
   :width: 600px

   CPU usage during test execution for *Rio*.

.. figure:: ../_static/profiles/Rio_rss.png
   :alt: RSS memory over time
   :width: 600px

   RSS memory usage during test execution for *Rio*.

.. figure:: ../_static/profiles/Rio_time.png
   :alt: Duration comparison
   :width: 600px

   Test duration for *Rio* compared to all other terminals.

.. figure:: ../_static/profiles/Rio_cpu_vs_time.png
   :alt: CPU % vs Duration
   :width: 600px

   CPU % vs duration trade-off for *Rio*.

.. _`printf(1)`: https://www.man7.org/linux/man-pages/man1/printf.1.html
.. _`wcwidth.wcswidth()`: https://wcwidth.readthedocs.io/en/latest/intro.html
.. _`ucs-detect`: https://github.com/jquast/ucs-detect
.. _`ttyscan`: https://github.com/jquast/ttyscan
.. _`DEC Private Modes`: https://blessed.readthedocs.io/en/latest/dec_modes.html
.. _`OSC 52`: https://dev.to/djmitche/clipboards-terminals-and-linux-3pk5
.. _`XTGETTCAP`: https://codeberg.org/dnkl/foot#xtgettcap
.. _`Truecolor`: https://github.com/termstandard/colors/blob/master/README.md
.. _`Kitty graphics`: https://sw.kovidgoyal.net/kitty/graphics-protocol/