.. _foot:

foot
----


Tested Software version 1.27.0 on Linux.
The homepage URL of this terminal is https://codeberg.org/dnkl/foot.
Full results available at ucs-detect_ repository path
`data/foot.yaml <https://github.com/jquast/ucs-detect/blob/master/data/foot.yaml>`_.

.. _footscores:

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

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

.. table::
   :class: sphinx-datatable

   ===  =================================  ===========  ====================
     #  Score Type                         Raw Score    Final Scaled Score
   ===  =================================  ===========  ====================
     1  :ref:`WIDE <footwide>`             100.00%      100.0%
     2  :ref:`NARROW <footnarrow>`         100.00%      100.0%
     3  :ref:`ZWJ <footzwj>`               100.00%      100.0%
     4  :ref:`LANG <footlang>`             100.00%      100.0%
     5  :ref:`VS16 <footvs16>`             100.00%      100.0%
     6  :ref:`VS15 <footvs15>`             100.00%      *(excluded)*
     7  :ref:`SRI <footsri>`               100.00%      100.0%
     8  :ref:`SFZ <footsfz>`               100.00%      100.0%
     9  :ref:`RI <footri>`                 100.00%      100.0%
    10  :ref:`FEAT <footfeaturesdetails>`  75.00%       80.0%
    11  :ref:`Graphics <footgraphics>`     50%          50.0%
    12  :ref:`Resources <footresources>`   90.7%        90.7%
   ===  =================================  ===========  ====================

**Score Comparison Plot:**

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

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

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

**Final Scaled Score Calculation:**

- Raw Final Score: 94.35%
  (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: 99.0%
  (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: 475
- Total codepoints tested: 506
- Formula: 475 / 506
- Result: 100.00%

**NARROW Score Details:**

Narrow character support calculation:

- Total successful codepoints: 174
- Total codepoints tested: 187
- Formula: 174 / 187
- Result: 100.00%

**ZWJ Score Details:**

Emoji ZWJ (Zero-Width Joiner) support calculation:

- Total successful sequences: 1445
- Total sequences tested: 1445
- Formula: 1445 / 1445
- Result: 100.00%

**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: 0 of 158 codepoints tested
- Success rate: 100.0%
- Formula: 100.0 / 100
- Result: 100.00%

**SRI Score Details:**

Standalone Regional Indicator support calculation:

- Total successful codepoints: 0
- Total codepoints tested: 26
- Formula: 0 / 26
- Result: 100.00%

**SFZ Score Details:**

Standalone Fitzpatrick skin tone modifier support calculation:

- Total successful codepoints: 0
- Total codepoints tested: 5
- Formula: 0 / 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%

.. _footfeaturesdetails:

**Features Score Details:**

Notable terminal features (12.0 / 16):

- :ref:`Set bracketed paste mode (2004) <footdecmodes>`: **yes**
- :ref:`Synchronized Output (2026) <footdecmodes>`: **yes**
- :ref:`Send FocusIn/FocusOut events (1004) <footdecmodes>`: **yes**
- :ref:`Enable SGR Mouse Mode (1006) <footdecmodes>`: **yes**
- :ref:`Grapheme Clustering (2027) <footdecmodes>`: **yes**
- :ref:`Bracketed Paste MIME (5522) <footdecmodes>`: **no**
- :ref:`Kitty Keyboard <footkittykbd>`: **yes**
- :ref:`XTGETTCAP (Full) <footxtgettcap>`: **yes**
- :ref:`Text Sizing (OSC 66) <foottextsizing>`: **yes**
- :ref:`Kitty Clipboard Protocol <footdecmodes>`: **no**
- :ref:`OSC 52 Clipboard <footosc52>`: **yes**
- :ref:`Kitty Pointer Shapes (OSC 22) <footdecmodes>`: **no**
- :ref:`Kitty Notifications (OSC 99) <footdecmodes>`: **no**
- :ref:`Color Report (OSC 10/11) <footdecmodes>`: **yes**
- :ref:`Terminal Identification (XTVERSION) <footidentification>`: **yes**
- :ref:`Truecolor Detection <foottruecolor>`: **yes**

Raw score: 75.00%

**Graphics Score Details:**

Graphics protocol support (50%):

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

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

**Resource Score Details:**


- Duration: 4.0s
- Mean CPU: 13.7%
- Mean RSS: 25.4 MB
- Resources Score: 91/100
- Note: log-scale composite cost = log(CPU+1) + log(RSS+1) + log(time+1)
- Scaled result: 90.7%

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

Geometric mean calculation:

- Formula: (p₁ × p₂ × ... × pₙ)^(1/n) where n = 85 languages
- About `geometric mean <https://en.wikipedia.org/wiki/Geometric_mean>`_
- Result: 100.00%

.. _footwide:

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

Wide character support of *foot* is **93.9%** (31 errors of 506 codepoints tested).

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

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  ==================================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  ==================================
     1  `U+0001F1F5 <https://codepoints.net/U+0001F1F5>`_  '\\U0001f1f5'  So                  2  REGIONAL INDICATOR SYMBOL LETTER P
   ===  =================================================  =============  ==========  =========  ==================================

Total codepoints: 1


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

        $ printf "\xf0\x9f\x87\xb5|\\n12|\\n"
        🇵|
        12|


- See Line 42373 of `ucs_wide.txt <https://github.com/jquast/ucs-detect/blob/master/docs/ucs_example_files/ucs_wide.txt#L42373>`_ for this sequence in the example file.

Screenshot:

.. image:: ../_static/screenshots/foot/wide.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footnarrow:

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

Narrow character support of *foot* is **93.0%** (13 errors of 187 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 *foot* measures width 0.

.. _footzwj:

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

Compatibility of *foot* with the Unicode Emoji ZWJ sequence table is **100.0%** (0 errors of 1445 sequences tested).

.. _footvs16:

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

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

.. _footvs15:

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

Emoji VS-15 results for *foot* is 0 errors
out of 158 total codepoints tested, 100.0% success.
All codepoint combinations with Variation Selector-15 tested were successful.

.. _footsri:

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

Standalone Regional Indicator support of *foot* 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/foot/sri.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footsfz:

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

Standalone Fitzpatrick skin tone modifier support of *foot* is **0.0%** (5 errors of 5 codepoints tested).

Sequence of a standalone Fitzpatrick modifier, from midpoint of alignment failure records:

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  =================================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  =================================
     1  `U+0001F3FD <https://codepoints.net/U+0001F3FD>`_  '\\U0001f3fd'  Sk                  2  EMOJI MODIFIER FITZPATRICK TYPE-4
   ===  =================================================  =============  ==========  =========  =================================

Total codepoints: 1


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

        $ printf "\xf0\x9f\x8f\xbd|\\n12|\\n"
        🏽|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/sfz.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footri:

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

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

.. _footgraphics:

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

*foot* supports the following graphics protocols: Sixel_.

**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, 22, 28, 52
- 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

.. _footlang:

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

The following 61 languages were tested with 100% success:

Aja, Amarakaeri, Arabic, Standard, Assyrian Neo-Aramaic, Baatonum, Bamun, Belanda Viri, Bora, Catalan (2), Chickasaw, Chinantec, Chiltepec, Dagaare, Southern, Dari, Dendi, Dinka, Northeastern, Dzongkha, Evenki, Farsi, Western, Fon, French (Welche), Fur, Ga, Gen, Gilyak, Gumuz, Kabyle, Lamnso', Lao, Lingala (tones), Maldivian, Maori (2), Mazahua Central, Mòoré, Nanai, Navajo, Orok, Otomi, Mezquital, Panjabi, Western, Pashto, Northern, Picard, Pular (Adlam), Secoya, Seraiki, Shipibo-Conibo, Siona, South Azerbaijani, Tagalog (Tagalog), Tai Dam, Tamang, Eastern, Tamazight, Central Atlas, Tem, Thai, Thai (2), Tibetan, Central, Ticuna, Uduk, Urdu (2), Vietnamese, Yaneshaʼ, Yiddish, Eastern, Yoruba.

The following 24 languages are not fully supported:

.. table::
   :class: sphinx-datatable

   =====================================================  ==========  =========  =============
   lang                                                     n_errors    n_total  pct_success
   =====================================================  ==========  =========  =============
   :ref:`Sanskrit (Grantha) <footlangsanskritgrantha>`           197        237  16.9%
   :ref:`Tamil <footlangtamil>`                                  106        132  19.7%
   :ref:`Kannada <footlangkannada>`                              157        236  33.5%
   :ref:`Sinhala <footlangsinhala>`                              101        198  49.0%
   :ref:`Panjabi, Eastern <footlangpanjabieastern>`              103        236  56.4%
   :ref:`Bengali <footlangbengali>`                              135        335  59.7%
   :ref:`Bhojpuri <footlangbhojpuri>`                            101        252  59.9%
   :ref:`Gujarati <footlanggujarati>`                            113        290  61.0%
   :ref:`Burmese <footlangburmese>`                               76        223  65.9%
   :ref:`Malayalam <footlangmalayalam>`                          130        382  66.0%
   :ref:`Khmer, Central <footlangkhmercentral>`                  114        390  70.8%
   :ref:`Magahi <footlangmagahi>`                                  6         22  72.7%
   :ref:`Khün <footlangkhn>`                                      90        354  74.6%
   :ref:`Hindi <footlanghindi>`                                   40        164  75.6%
   :ref:`Telugu <footlangtelugu>`                                 78        335  76.7%
   :ref:`Mon <footlangmon>`                                       45        208  78.4%
   :ref:`Marathi <footlangmarathi>`                               20        103  80.6%
   :ref:`Sanskrit <footlangsanskrit>`                             27        155  82.6%
   :ref:`Javanese (Javanese) <footlangjavanesejavanese>`          85        488  82.6%
   :ref:`Maithili <footlangmaithili>`                             10         66  84.8%
   :ref:`Chakma <footlangchakma>`                                 34        225  84.9%
   :ref:`Nepali <footlangnepali>`                                  9         71  87.3%
   :ref:`Shan <footlangshan>`                                     11        106  89.6%
   :ref:`Urdu <footlangurdu>`                                      1         23  95.7%
   =====================================================  ==========  =========  =============

.. _footlangsanskritgrantha:

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

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

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  =====================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  =====================
     1  `U+00011305 <https://codepoints.net/U+00011305>`_  '\\U00011305'  Lo                  1  GRANTHA LETTER A
     2  `U+00011302 <https://codepoints.net/U+00011302>`_  '\\U00011302'  Mc                  0  GRANTHA SIGN ANUSVARA
   ===  =================================================  =============  ==========  =========  =====================

Total codepoints: 2


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

        $ printf "\xf0\x91\x8c\x85\xf0\x91\x8c\x82|\\n12|\\n"
        𑌅𑌂|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Sanskrit__Grantha_.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangtamil:

Tamil
^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ===================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ===================
     1  `U+0B95 <https://codepoints.net/U+0B95>`_  '\\u0b95'  Lo                  1  TAMIL LETTER KA
     2  `U+0BBE <https://codepoints.net/U+0BBE>`_  '\\u0bbe'  Mc                  0  TAMIL VOWEL SIGN AA
   ===  =========================================  =========  ==========  =========  ===================

Total codepoints: 2


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

        $ printf "\xe0\xae\x95\xe0\xae\xbe|\\n12|\\n"
        கா|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Tamil.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangkannada:

Kannada
^^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =====================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =====================
     1  `U+0C85 <https://codepoints.net/U+0C85>`_  '\\u0c85'  Lo                  1  KANNADA LETTER A
     2  `U+0C82 <https://codepoints.net/U+0C82>`_  '\\u0c82'  Mc                  0  KANNADA SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  =====================

Total codepoints: 2


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

        $ printf "\xe0\xb2\x85\xe0\xb2\x82|\\n12|\\n"
        ಅಂ|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Kannada.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangsinhala:

Sinhala
^^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =================================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =================================
     1  `U+0D9A <https://codepoints.net/U+0D9A>`_  '\\u0d9a'  Lo                  1  SINHALA LETTER ALPAPRAANA KAYANNA
     2  `U+0DCF <https://codepoints.net/U+0DCF>`_  '\\u0dcf'  Mc                  0  SINHALA VOWEL SIGN AELA-PILLA
   ===  =========================================  =========  ==========  =========  =================================

Total codepoints: 2


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

        $ printf "\xe0\xb6\x9a\xe0\xb7\x8f|\\n12|\\n"
        කා|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Sinhala.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangpanjabieastern:

Panjabi, Eastern
^^^^^^^^^^^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ======================
     1  `U+0A15 <https://codepoints.net/U+0A15>`_  '\\u0a15'  Lo                  1  GURMUKHI LETTER KA
     2  `U+0A3E <https://codepoints.net/U+0A3E>`_  '\\u0a3e'  Mc                  0  GURMUKHI VOWEL SIGN AA
   ===  =========================================  =========  ==========  =========  ======================

Total codepoints: 2


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

        $ printf "\xe0\xa8\x95\xe0\xa8\xbe|\\n12|\\n"
        ਕਾ|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Panjabi__Eastern.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangbengali:

Bengali
^^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =====================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =====================
     1  `U+0985 <https://codepoints.net/U+0985>`_  '\\u0985'  Lo                  1  BENGALI LETTER A
     2  `U+0982 <https://codepoints.net/U+0982>`_  '\\u0982'  Mc                  0  BENGALI SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  =====================

Total codepoints: 2


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

        $ printf "\xe0\xa6\x85\xe0\xa6\x82|\\n12|\\n"
        অং|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Bengali.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangbhojpuri:

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+093E <https://codepoints.net/U+093E>`_  '\\u093e'  Mc                  0  DEVANAGARI VOWEL SIGN AA
   ===  =========================================  =========  ==========  =========  ========================

Total codepoints: 2


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

        $ printf "\xe0\xa4\x95\xe0\xa4\xbe|\\n12|\\n"
        का|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Bhojpuri.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlanggujarati:

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+0A83 <https://codepoints.net/U+0A83>`_  '\\u0a83'  Mc                  0  GUJARATI SIGN VISARGA
   ===  =========================================  =========  ==========  =========  =====================

Total codepoints: 2


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

        $ printf "\xe0\xaa\x95\xe0\xaa\x83|\\n12|\\n"
        કઃ|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Gujarati.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangburmese:

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+1031 <https://codepoints.net/U+1031>`_  '\\u1031'  Mc                  0  MYANMAR VOWEL SIGN E
   ===  =========================================  =========  ==========  =========  ====================

Total codepoints: 2


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

        $ printf "\xe1\x80\x80\xe1\x80\xb1|\\n12|\\n"
        ကေ|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Burmese.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangmalayalam:

Malayalam
^^^^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0D05 <https://codepoints.net/U+0D05>`_  '\\u0d05'  Lo                  1  MALAYALAM LETTER A
     2  `U+0D02 <https://codepoints.net/U+0D02>`_  '\\u0d02'  Mc                  0  MALAYALAM SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 2


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

        $ printf "\xe0\xb4\x85\xe0\xb4\x82|\\n12|\\n"
        അം|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Malayalam.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangkhmercentral:

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+17B6 <https://codepoints.net/U+17B6>`_  '\\u17b6'  Mc                  0  KHMER VOWEL SIGN AA
   ===  =========================================  =========  ==========  =========  ===================

Total codepoints: 2


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

        $ printf "\xe1\x9e\x80\xe1\x9e\xb6|\\n12|\\n"
        កា|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Khmer__Central.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangmagahi:

Magahi
^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+0916 <https://codepoints.net/U+0916>`_  '\\u0916'  Lo                  1  DEVANAGARI LETTER KHA
     2  `U+094B <https://codepoints.net/U+094B>`_  '\\u094b'  Mc                  0  DEVANAGARI VOWEL SIGN O
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 2


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

        $ printf "\xe0\xa4\x96\xe0\xa5\x8b|\\n12|\\n"
        खो|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Magahi.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangkhn:

Khün
^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+1A20 <https://codepoints.net/U+1A20>`_  '\\u1a20'  Lo                  1  TAI THAM LETTER HIGH KA
     2  `U+1A6E <https://codepoints.net/U+1A6E>`_  '\\u1a6e'  Mc                  0  TAI THAM VOWEL SIGN E
     3  `U+1A60 <https://codepoints.net/U+1A60>`_  '\\u1a60'  Mn                  0  TAI THAM SIGN SAKOT
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 3


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

        $ printf "\xe1\xa8\xa0\xe1\xa9\xae\xe1\xa9\xa0|\\n12|\\n"
        ᨠᩮ᩠|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Khün.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlanghindi:

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+093E <https://codepoints.net/U+093E>`_  '\\u093e'  Mc                  0  DEVANAGARI VOWEL SIGN AA
     3  `U+0902 <https://codepoints.net/U+0902>`_  '\\u0902'  Mn                  0  DEVANAGARI SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  ========================

Total codepoints: 3


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

        $ printf "\xe0\xa4\x95\xe0\xa4\xbe\xe0\xa4\x82|\\n12|\\n"
        कां|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Hindi.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangtelugu:

Telugu
^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ====================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ====================
     1  `U+0C05 <https://codepoints.net/U+0C05>`_  '\\u0c05'  Lo                  1  TELUGU LETTER A
     2  `U+0C02 <https://codepoints.net/U+0C02>`_  '\\u0c02'  Mc                  0  TELUGU SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  ====================

Total codepoints: 2


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

        $ printf "\xe0\xb0\x85\xe0\xb0\x82|\\n12|\\n"
        అం|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Telugu.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangmon:

Mon
^^^

Sequence of language *Mon* 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+1031 <https://codepoints.net/U+1031>`_  '\\u1031'  Mc                  0  MYANMAR VOWEL SIGN E
     3  `U+102F <https://codepoints.net/U+102F>`_  '\\u102f'  Mn                  0  MYANMAR VOWEL SIGN U
   ===  =========================================  =========  ==========  =========  ====================

Total codepoints: 3


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

        $ printf "\xe1\x80\x80\xe1\x80\xb1\xe1\x80\xaf|\\n12|\\n"
        ကေု|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Mon.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangmarathi:

Marathi
^^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ========================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ========================
     1  `U+091A <https://codepoints.net/U+091A>`_  '\\u091a'  Lo                  1  DEVANAGARI LETTER CA
     2  `U+093E <https://codepoints.net/U+093E>`_  '\\u093e'  Mc                  0  DEVANAGARI VOWEL SIGN AA
     3  `U+0902 <https://codepoints.net/U+0902>`_  '\\u0902'  Mn                  0  DEVANAGARI SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  ========================

Total codepoints: 3


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

        $ printf "\xe0\xa4\x9a\xe0\xa4\xbe\xe0\xa4\x82|\\n12|\\n"
        चां|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Marathi.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangsanskrit:

Sanskrit
^^^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  ========================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  ========================
     1  `U+0920 <https://codepoints.net/U+0920>`_  '\\u0920'  Lo                  1  DEVANAGARI LETTER TTHA
     2  `U+0948 <https://codepoints.net/U+0948>`_  '\\u0948'  Mn                  0  DEVANAGARI VOWEL SIGN AI
     3  `U+0903 <https://codepoints.net/U+0903>`_  '\\u0903'  Mc                  0  DEVANAGARI SIGN VISARGA
   ===  =========================================  =========  ==========  =========  ========================

Total codepoints: 3


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

        $ printf "\xe0\xa4\xa0\xe0\xa5\x88\xe0\xa4\x83|\\n12|\\n"
        ठैः|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Sanskrit.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangjavanesejavanese:

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+A983 <https://codepoints.net/U+A983>`_  '\\ua983'  Mc                  0  JAVANESE SIGN WIGNYAN
   ===  =========================================  =========  ==========  =========  =====================

Total codepoints: 2


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

        $ printf "\xea\xa6\x8f\xea\xa6\x83|\\n12|\\n"
        ꦏꦃ|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Javanese__Javanese_.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangmaithili:

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+093F <https://codepoints.net/U+093F>`_  '\\u093f'  Mc                  0  DEVANAGARI VOWEL SIGN I
     3  `U+0902 <https://codepoints.net/U+0902>`_  '\\u0902'  Mn                  0  DEVANAGARI SIGN ANUSVARA
   ===  =========================================  =========  ==========  =========  ========================

Total codepoints: 3


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

        $ printf "\xe0\xa4\x95\xe0\xa4\xbf\xe0\xa4\x82|\\n12|\\n"
        किं|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Maithili.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangchakma:

Chakma
^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =================================================  =============  ==========  =========  ===================
     #  Codepoint                                          Python         Category      wcwidth  Name
   ===  =================================================  =============  ==========  =========  ===================
     1  `U+00011103 <https://codepoints.net/U+00011103>`_  '\\U00011103'  Lo                  1  CHAKMA LETTER AA
     2  `U+0001112C <https://codepoints.net/U+0001112C>`_  '\\U0001112c'  Mc                  0  CHAKMA VOWEL SIGN E
   ===  =================================================  =============  ==========  =========  ===================

Total codepoints: 2


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

        $ printf "\xf0\x91\x84\x83\xf0\x91\x84\xac|\\n12|\\n"
        𑄃𑄬|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Chakma.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangnepali:

Nepali
^^^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =======================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =======================
     1  `U+091A <https://codepoints.net/U+091A>`_  '\\u091a'  Lo                  1  DEVANAGARI LETTER CA
     2  `U+094B <https://codepoints.net/U+094B>`_  '\\u094b'  Mc                  0  DEVANAGARI VOWEL SIGN O
   ===  =========================================  =========  ==========  =========  =======================

Total codepoints: 2


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

        $ printf "\xe0\xa4\x9a\xe0\xa5\x8b|\\n12|\\n"
        चो|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Nepali.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangshan:

Shan
^^^^

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

.. table::
   :class: sphinx-datatable

   ===  =========================================  =========  ==========  =========  =========================
     #  Codepoint                                  Python     Category      wcwidth  Name
   ===  =========================================  =========  ==========  =========  =========================
     1  `U+1004 <https://codepoints.net/U+1004>`_  '\\u1004'  Lo                  1  MYANMAR LETTER NGA
     2  `U+1084 <https://codepoints.net/U+1084>`_  '\\u1084'  Mc                  0  MYANMAR VOWEL SIGN SHAN E
   ===  =========================================  =========  ==========  =========  =========================

Total codepoints: 2


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

        $ printf "\xe1\x80\x84\xe1\x82\x84|\\n12|\\n"
        ငႄ|
        12|


Screenshot:

.. image:: ../_static/screenshots/foot/lang_Shan.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footlangurdu:

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/foot/lang_Urdu.png
   :alt: Terminal screenshot of the rendering discrepancy
   :width: 1024px
   :height: 207px

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

.. _footdecmodes:

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

DEC private modes results for *foot*: 7 changeable modes
of 7 supported out of 8 total modes tested (87.5% support, 87.5% 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                  Yes          Yes           Yes
     2031  COLOR_PALETTE_UPDATES  Color palette updates                Yes          Yes           No
     2048  IN_BAND_WINDOW_RESIZE  In-Band Window Resize Notifications  Yes          Yes           No
     5522  BRACKETED_PASTE_MIME   Bracketed Paste MIME                 No           No            No
   ======  =====================  ===================================  ===========  ============  =========

**Summary**: 7 changeable, 1 not changeable.

.. _footkittykbd:

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

*foot* 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/

.. _footxtgettcap:

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

*foot* supports the ``XTGETTCAP`` sequence and reports **219** 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\E\``
     5  Cs             Reset cursor color                             ``\E]12;%p1%s\E\``
     6  E3             Erase scrollback                               ``\E[3J``
     7  Ms             Clipboard set                                  ``\E]52;%p1%s;%p2%s\E\``
     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``
    11  RV             Enter reverse mode (kitty)                     ``\E[>c``
    12  Rect           Rectangle operations                           ``\E[%p1%d;%p2%d;%p3%d;%p4%d;%p5%d$x``
    13  Se             Reset underline style                          ``\E[ q``
    14  Setulc         Set underline color                            ``\E[58:2::%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%...``
    15  Smulx          Styled underline                               ``\E[4:%p1%dm``
    16  Ss             Set underline style                            ``\E[%p1%d q``
    17  Su             Colored underlines                             *(empty)*
    18  Sync           Synchronized output                            ``\E[?2026%?%p1%{1}%-%tl%eh%;``
    19  TN             Terminal name                                  ``foot``
    20  TS             Terminal state query                           ``\E]2;``
    21  Tc             Truecolor (24-bit RGB)                         *(empty)*
    22  XF             Extended functionality                         *(empty)*
    23  XM             Enter marks mode (kitty)                       ``\E[?1006;1000%?%p1%{1}%=%th%el%;``
    24  XR             Enter reset mode (kitty)                       ``\E[>0q``
    25  XT             Xterm extensions                               *(empty)*
    26  acsc           Alternate character set                        ````aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~``
    27  am             Auto right margin                              *(empty)*
    28  bce            Background color erase                         *(empty)*
    29  bel            Bell                                           ``\a``
    30  blink          Enter blink mode                               ``\E[5m``
    31  bold           Enter bold mode                                ``\E[1m``
    32  bw             Auto left margin                               *(empty)*
    33  ccc            Can redefine colors                            *(empty)*
    34  civis          Hide cursor                                    ``\E[?25l``
    35  clear          Clear screen                                   ``\E[H\E[2J``
    36  cnorm          Normal cursor                                  ``\E[?12l\E[?25h``
    37  colors         Max colors on screen                           ``256``
    38  cols           Columns                                        ``80``
    39  cr             Carriage return                                ``\r``
    40  csr            Change scroll region                           ``\E[%i%p1%d;%p2%dr``
    41  cub            Cursor left n                                  ``\E[%p1%dD``
    42  cub1           Cursor left                                    ``\b``
    43  cud            Cursor down n                                  ``\E[%p1%dB``
    44  cud1           Cursor down                                    ``\n``
    45  cuf            Cursor right n                                 ``\E[%p1%dC``
    46  cuf1           Cursor right                                   ``\E[C``
    47  cup            Cursor address                                 ``\E[%i%p1%d;%p2%dH``
    48  cuu            Cursor up n                                    ``\E[%p1%dA``
    49  cuu1           Cursor up                                      ``\E[A``
    50  cvvis          Very visible cursor                            ``\E[?12;25h``
    51  dch            Delete n characters                            ``\E[%p1%dP``
    52  dch1           Delete character                               ``\E[P``
    53  dim            Enter dim mode                                 ``\E[2m``
    54  dl             Delete n lines                                 ``\E[%p1%dM``
    55  dl1            Delete line                                    ``\E[M``
    56  dsl            Disable status line                            ``\E]2;\E\``
    57  ech            Erase characters                               ``\E[%p1%dX``
    58  ed             Clear to end of screen                         ``\E[J``
    59  el             Clear to end of line                           ``\E[K``
    60  el1            Clear to start of line                         ``\E[1K``
    61  fd             Enter font mode (kitty)                        ``\E[?1004l``
    62  fe             Exit font mode (kitty)                         ``\E[?1004h``
    63  flash          Flash screen                                   ``\E]555\E\``
    64  fsl            From status line                               ``\E\``
    65  home           Cursor home                                    ``\E[H``
    66  hpa            Horizontal position                            ``\E[%i%p1%dG``
    67  hs             Has status line                                *(empty)*
    68  ht             Horizontal tab                                 ``\t``
    69  hts            Set tab stop                                   ``\EH``
    70  ich            Insert n characters                            ``\E[%p1%d@``
    71  il             Insert n lines                                 ``\E[%p1%dL``
    72  il1            Insert line                                    ``\E[L``
    73  ind            Scroll forward                                 ``\n``
    74  indn           Scroll forward n                               ``\E[%p1%dS``
    75  initc          Initialize color                               ``\E]4;%p1%d;rgb:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{100...``
    76  invis          Invisible cursor                               ``\E[8m``
    77  is2            Init 2 string                                  ``\E[!p\E[4l\E>``
    78  it             Init tabs                                      ``8``
    79  kDC            Shifted delete-char key                        ``\E[3;2~``
    80  kDC3           Alt delete-char key                            ``\E[3;3~``
    81  kDC4           Alt-Shift delete-char key                      ``\E[3;4~``
    82  kDC5           Ctrl delete-char key                           ``\E[3;5~``
    83  kDC6           Ctrl-Shift delete-char key                     ``\E[3;6~``
    84  kDC7           Ctrl-Alt delete-char key                       ``\E[3;7~``
    85  kDN            Shifted down-arrow key                         ``\E[1;2B``
    86  kDN3           Alt down-arrow key                             ``\E[1;3B``
    87  kDN4           Alt-Shift down-arrow key                       ``\E[1;4B``
    88  kDN5           Ctrl down-arrow key                            ``\E[1;5B``
    89  kDN6           Ctrl-Shift down-arrow key                      ``\E[1;6B``
    90  kDN7           Ctrl-Alt down-arrow key                        ``\E[1;7B``
    91  kEND           Shifted end key                                ``\E[1;2F``
    92  kEND3          Alt end key                                    ``\E[1;3F``
    93  kEND4          Alt-Shift end key                              ``\E[1;4F``
    94  kEND5          Ctrl end key                                   ``\E[1;5F``
    95  kEND6          Ctrl-Shift end key                             ``\E[1;6F``
    96  kEND7          Ctrl-Alt end key                               ``\E[1;7F``
    97  kHOM           Shifted home key                               ``\E[1;2H``
    98  kHOM3          Alt home key                                   ``\E[1;3H``
    99  kHOM4          Alt-Shift home key                             ``\E[1;4H``
   100  kHOM5          Ctrl home key                                  ``\E[1;5H``
   101  kHOM6          Ctrl-Shift home key                            ``\E[1;6H``
   102  kHOM7          Ctrl-Alt home key                              ``\E[1;7H``
   103  kIC            Shifted insert-char key                        ``\E[2;2~``
   104  kIC3           Alt insert-char key                            ``\E[2;3~``
   105  kIC4           Alt-Shift insert-char key                      ``\E[2;4~``
   106  kIC5           Ctrl insert-char key                           ``\E[2;5~``
   107  kIC6           Ctrl-Shift insert-char key                     ``\E[2;6~``
   108  kIC7           Ctrl-Alt insert-char key                       ``\E[2;7~``
   109  kLFT           Shifted left-arrow key                         ``\E[1;2D``
   110  kLFT3          Alt left-arrow key                             ``\E[1;3D``
   111  kLFT4          Alt-Shift left-arrow key                       ``\E[1;4D``
   112  kLFT5          Ctrl left-arrow key                            ``\E[1;5D``
   113  kLFT6          Ctrl-Shift left-arrow key                      ``\E[1;6D``
   114  kLFT7          Ctrl-Alt left-arrow key                        ``\E[1;7D``
   115  kNXT           Shifted next-page key                          ``\E[6;2~``
   116  kNXT3          Alt next-page key                              ``\E[6;3~``
   117  kNXT4          Alt-Shift next-page key                        ``\E[6;4~``
   118  kNXT5          Ctrl next-page key                             ``\E[6;5~``
   119  kNXT6          Ctrl-Shift next-page key                       ``\E[6;6~``
   120  kNXT7          Ctrl-Alt next-page key                         ``\E[6;7~``
   121  kPRV           Shifted previous-page key                      ``\E[5;2~``
   122  kPRV3          Alt previous-page key                          ``\E[5;3~``
   123  kPRV4          Alt-Shift previous-page key                    ``\E[5;4~``
   124  kPRV5          Ctrl previous-page key                         ``\E[5;5~``
   125  kPRV6          Ctrl-Shift previous-page key                   ``\E[5;6~``
   126  kPRV7          Ctrl-Alt previous-page key                     ``\E[5;7~``
   127  kRIT           Shifted right-arrow key                        ``\E[1;2C``
   128  kRIT3          Alt right-arrow key                            ``\E[1;3C``
   129  kRIT4          Alt-Shift right-arrow key                      ``\E[1;4C``
   130  kRIT5          Ctrl right-arrow key                           ``\E[1;5C``
   131  kRIT6          Ctrl-Shift right-arrow key                     ``\E[1;6C``
   132  kRIT7          Ctrl-Alt right-arrow key                       ``\E[1;7C``
   133  kUP            Shifted up-arrow key                           ``\E[1;2A``
   134  kUP3           Alt up-arrow key                               ``\E[1;3A``
   135  kUP4           Alt-Shift up-arrow key                         ``\E[1;4A``
   136  kUP5           Ctrl up-arrow key                              ``\E[1;5A``
   137  kUP6           Ctrl-Shift up-arrow key                        ``\E[1;6A``
   138  kUP7           Ctrl-Alt up-arrow key                          ``\E[1;7A``
   139  kbs            Backspace key                                  ````
   140  kcbt           Back-tab key                                   ``\E[Z``
   141  kcub1          Left arrow key                                 ``\EOD``
   142  kcud1          Down arrow key                                 ``\EOB``
   143  kcuf1          Right arrow key                                ``\EOC``
   144  kcuu1          Up arrow key                                   ``\EOA``
   145  kdch1          Delete character key                           ``\E[3~``
   146  kend           End key                                        ``\EOF``
   147  kf1            Function key F1                                ``\EOP``
   148  kf10           Function key F10                               ``\E[21~``
   149  kf11           Function key F11                               ``\E[23~``
   150  kf12           Function key F12                               ``\E[24~``
   151  kf2            Function key F2                                ``\EOQ``
   152  kf3            Function key F3                                ``\EOR``
   153  kf4            Function key F4                                ``\EOS``
   154  kf5            Function key F5                                ``\E[15~``
   155  kf6            Function key F6                                ``\E[17~``
   156  kf7            Function key F7                                ``\E[18~``
   157  kf8            Function key F8                                ``\E[19~``
   158  kf9            Function key F9                                ``\E[20~``
   159  khome          Home key                                       ``\EOH``
   160  kich1          Insert character key                           ``\E[2~``
   161  kind           Scroll-down key                                ``\E[1;2B``
   162  kmous          Mouse key                                      ``\E[<``
   163  knp            Next page key                                  ``\E[6~``
   164  kpp            Previous page key                              ``\E[5~``
   165  kri            Scroll-up key                                  ``\E[1;2A``
   166  kxIN           Keyboard in (kitty)                            ``\E[I``
   167  kxOUT          Keyboard out (kitty)                           ``\E[O``
   168  lines          Lines                                          ``24``
   169  mir            Move in insert mode                            *(empty)*
   170  msgr           Move in standout mode                          *(empty)*
   171  nel            Newline                                        ``\EE``
   172  npc            No pad character                               *(empty)*
   173  oc             Original colors                                ``\E]104\E\``
   174  op             Original pair                                  ``\E[39;49m``
   175  pairs          Max color pairs                                ``65536``
   176  query-os-name  OS name query                                  ``Linux``
   177  rc             Restore cursor                                 ``\E8``
   178  rep            Repeat character                               ``%p1%c\E[%p2%{1}%-%db``
   179  rev            Enter reverse mode                             ``\E[7m``
   180  ri             Reverse index                                  ``\EM``
   181  rin            Scroll reverse n                               ``\E[%p1%dT``
   182  ritm           Exit italics mode                              ``\E[23m``
   183  rmacs          Exit alternate charset mode                    ``\E(B``
   184  rmam           Disable line wrap                              ``\E[?7l``
   185  rmcup          Exit alt screen                                ``\E[?1049l\E[23;0;0t``
   186  rmir           Exit insert mode                               ``\E[4l``
   187  rmkx           Keypad local mode                              ``\E[?1l\E>``
   188  rmm            Reset meta mode                                ``\E[?1036h\E[?1034l``
   189  rmso           Exit standout mode                             ``\E[27m``
   190  rmul           Exit underline mode                            ``\E[24m``
   191  rs1            Reset string 1                                 ``\Ec``
   192  rs2            Reset string 2                                 ``\E[!p\E[4l\E>``
   193  rv             Exit reverse mode (kitty)                      ``\E\[>1;[0-9][0-9][0-9][0-9][0-9][0-9];0c``
   194  sc             Save cursor                                    ``\E7``
   195  setab          Set background color                           ``\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48:5:%...``
   196  setaf          Set foreground color                           ``\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38:5:%p...``
   197  setal          Set ANSI label                                 ``\E[58:2::%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%...``
   198  setrgbb        Set RGB background                             ``\E[48:2::%p1%d:%p2%d:%p3%dm``
   199  setrgbf        Set RGB foreground                             ``\E[38:2::%p1%d:%p2%d:%p3%dm``
   200  sgr            Set attributes                                 ``%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p5%t;2%;%?%p2%t;4%;%...``
   201  sgr0           Reset attributes                               ``\E(B\E[m``
   202  sitm           Enter italics mode                             ``\E[3m``
   203  smacs          Enter alternate charset mode                   ``\E(0``
   204  smam           Enable line wrap                               ``\E[?7h``
   205  smcup          Enter alt screen                               ``\E[?1049h\E[22;0;0t``
   206  smir           Enter insert mode                              ``\E[4h``
   207  smkx           Keypad transmit mode                           ``\E[?1h\E=``
   208  smso           Enter standout mode                            ``\E[7m``
   209  smul           Enter underline mode                           ``\E[4m``
   210  tbc            Clear all tabs                                 ``\E[3g``
   211  tsl            To status line                                 ``\E]2;``
   212  u6             CPR response format                            ``\E[%i%d;%dR``
   213  u7             CPR request                                    ``\E[6n``
   214  u8             DA response format                             ``\E[?%[;0123456789]c``
   215  u9             DA request                                     ``\E[c``
   216  vpa            Vertical position                              ``\E[%i%p1%dd``
   217  xenl           Newline glitch                                 *(empty)*
   218  xm             Exit marks mode (kitty)                        ``\E[<%i%p3%d;%p1%d;%p2%d;%?%p4%tM%em%;``
   219  xr             Exit reset mode (kitty)                        ``\EP>\|foot\([0-9]+\.[0-9]+\.[0-9]+(-[0-9]+-g[a-f[0-9]+)?\...``
   ===  =============  =============================================  ================================================================

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.

.. _foottextsizing:

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

*foot* supports the `Text Sizing protocol`_: explicit width (``w``).

The Text Sizing protocol (OSC 66) allows terminal programs to display text
at different sizes and to explicitly specify the cell width of characters.
Detection is performed by measuring cursor movement after sending
``ESC ] 66 ; w=2 ; <space> BEL`` and ``ESC ] 66 ; s=2 ; <space> BEL``.

Because this terminal supports the `Text Sizing protocol`_, any application
can programmatically set the displayed cell width of any character.
This means that width errors for complex languages, emoji, variation
selectors (VS15, VS16), standalone regional indicators and Fitzpatrick
modifiers, and other problematic codepoints can be fully remediated
at the application level. For this reason, *foot* scores **100%** on the WIDE,
LANG, ZWJ, VS16, VS15, SRI, SFZ, and RI width tests.

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

.. _foottruecolor:

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

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

- XTGETTCAP (RGB capability): **yes (RGB)**
- DECRQSS (truecolor probe): **yes (probe)**
- COLORTERM: **yes (truecolor)**

.. _footosc52:

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

*foot* supports OSC 52 clipboard operations
(detected via DA1 extension 52 + XTGETTCAP Ms).

- DA1 extension 52: **yes**
- XTGETTCAP Ms: **yes**

.. _footidentification:

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

*foot* is identified as **foot**
version **1.27.0**
(detected via XTVERSION + XTGETTCAP TN).

- XTVERSION (raw): **foot(1.27.0)**
- XTVERSION: **yes**
- XTGETTCAP TN: **yes** (foot)
- ENQ: **no**
- TERM_PROGRAM: **no**
- TERM: **yes** (foot)

.. _footreproduce:

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

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

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

.. _foottime:

.. _footresources:

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

The test suite completed in **4.00 seconds** (4s).

- **Mean CPU**: 13.7%
- **Mean RSS**: 25.4 MB
- **Total time**: 4.0s

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

   CPU usage during test execution for *foot*.

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

   RSS memory usage during test execution for *foot*.

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

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

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

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

.. _`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/