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data-v-b8d55f3b>Setup</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_building_firmware" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Building Your First Firmware</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_flashing" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Flashing Firmware</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/support" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Getting Help/Support</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_external_userspace" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>External Userspace</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_learn_more_resources" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Other Resources</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/syllabus" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Syllabus</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-575e6a36><section class="VPSidebarItem level-0" data-v-575e6a36 data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h2 class="text" data-v-b8d55f3b>FAQs</h2><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/faq_general" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>General FAQ</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/faq_build" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Build/Compile QMK</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/faq_misc" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Troubleshooting QMK</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/faq_debug" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Debugging QMK</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/faq_keymap" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Keymap FAQ</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/squeezing_avr" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Squeezing Space from AVR</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/reference_glossary" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Glossary</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-575e6a36><section class="VPSidebarItem level-0" data-v-575e6a36 data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h2 class="text" data-v-b8d55f3b>Configurator</h2><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_building_firmware_configurator" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Overview</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/configurator_step_by_step" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Step by Step</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/configurator_troubleshooting" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Troubleshooting</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/configurator_architecture" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Architecture</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>QMK API</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/api_overview" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Overview</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/api_docs" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>API Documentation</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/reference_configurator_support" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Keyboard Support</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/configurator_default_keymaps" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Adding Default Keymaps</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="group" data-v-575e6a36><section class="VPSidebarItem level-0" data-v-575e6a36 data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h2 class="text" data-v-b8d55f3b>CLI</h2><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/cli" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Overview</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/cli_configuration" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Configuration</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/cli_commands" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Commands</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/cli_tab_complete" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Tab Completion</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-575e6a36><section class="VPSidebarItem level-0 has-active" data-v-575e6a36 data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h2 class="text" data-v-b8d55f3b>Using QMK</h2><!----></div><div class="items" data-v-b8d55f3b><!--[--><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Guides</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/custom_quantum_functions" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Customizing Functionality</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/driver_installation_zadig" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Driver Installation with Zadig</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/keymap" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Keymap Overview</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>Development Environments</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/getting_started_docker" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Docker Guide</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>Flashing</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/flashing" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Flashing</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/flashing_bootloadhid" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Flashing ATmega32A (ps2avrgb)</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>IDEs</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/other_eclipse" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Using Eclipse with QMK</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/other_vscode" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Using VSCode with QMK</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>Git Best Practices</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_git_best_practices" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Introduction</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_git_using_your_master_branch" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Your Fork</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_git_resolving_merge_conflicts" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Merge Conflicts</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/newbs_git_resynchronize_a_branch" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Fixing Your Branch</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Simple Keycodes</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/keycodes" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Full List</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/keycodes_basic" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Basic Keycodes</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/reference_keymap_extras" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Language-Specific Keycodes</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_advanced_keycodes" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Modifier Keys</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/quantum_keycodes" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Quantum Keycodes</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/keycodes_magic" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Magic Keycodes</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Advanced Keycodes</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/command" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Command</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/dynamic_macros" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Dynamic Macros</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/grave_esc" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Grave Escape</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/leader_key" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Leader Key</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/mod_tap" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Mod-Tap</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_macros" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Macros</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/mouse_keys" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Mouse Keys</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/programmable_button" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Programmable Button</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/repeat_key" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Repeat Key</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/space_cadet" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Space Cadet Shift</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/keycodes_us_ansi_shifted" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>US ANSI Shifted Keys</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 has-active" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Software Features</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/auto_shift" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Auto Shift</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/autocorrect" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Autocorrect</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/caps_word" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Caps Word</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/combo" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Combos</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_debounce_type" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Debounce API</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/digitizer" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Digitizer</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_eeprom" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>EEPROM</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/key_lock" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Key Lock</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/key_overrides" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Key Overrides</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_layers" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Layers</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/one_shot_keys" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>One Shot Keys</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/os_detection" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>OS Detection</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/rawhid" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Raw HID</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/secure" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Secure</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/send_string" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Send String</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/sequencer" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Sequencer</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/swap_hands" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Swap Hands</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/tap_dance" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Tap Dance</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/tap_hold" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Tap-Hold Configuration</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/tri_layer" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Tri Layer</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/unicode" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Unicode</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_userspace" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Userspace</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/wpm" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>WPM Calculation</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Hardware Features</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>Displays</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><section class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/quantum_painter" data-v-b8d55f3b><!--[--><h5 class="text" data-v-b8d55f3b>Quantum Painter</h5><!--]--></a><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-4 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/quantum_painter_lvgl" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Quantum Painter LVGL Integration</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/hd44780" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>HD44780 LCD Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/st7565" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>ST7565 LCD Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/oled_driver" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>OLED Driver</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>Lighting</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/backlight" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Backlight</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/led_matrix" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>LED Matrix</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/rgblight" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>RGB Lighting</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/rgb_matrix" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>RGB Matrix</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/audio" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Audio</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/bluetooth" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Bluetooth</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/bootmagic" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Bootmagic Lite</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_converters" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Converters</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/custom_matrix" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Custom Matrix</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/dip_switch" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>DIP Switch</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/encoders" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Encoders</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/haptic_feedback" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Haptic Feedback</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/joystick" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Joystick</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/led_indicators" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>LED Indicators</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/midi" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>MIDI</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/pointing_device" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Pointing Device</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/ps2_mouse" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>PS/2 Mouse</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/split_keyboard" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Split Keyboard</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/features/stenography" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Stenography</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Keyboard Building</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/easy_maker" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Easy Maker for One Offs</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/porting_your_keyboard_to_qmk" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Porting Keyboards</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/hand_wire" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Hand Wiring Guide</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/isp_flashing_guide" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>ISP Flashing Guide</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="group" data-v-575e6a36><section class="VPSidebarItem level-0" data-v-575e6a36 data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h2 class="text" data-v-b8d55f3b>Developing QMK</h2><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/pr_checklist" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>PR Checklist</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Breaking Changes</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/breaking_changes" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Overview</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/breaking_changes_instructions" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>My Pull Request Was Flagged</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/ChangeLog/20240526" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Most Recent ChangeLog</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/breaking_changes_history" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Past Breaking Changes</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>C Development</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/arm_debugging" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>ARM Debugging Guide</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/coding_conventions_c" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Coding Conventions</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/compatible_microcontrollers" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Compatible Microcontrollers</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/hardware_drivers" data-v-b8d55f3b><!--[--><h4 class="text" data-v-b8d55f3b>Drivers</h4><!--]--></a><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/adc" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>ADC Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/apa102" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>APA102 Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/audio" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Audio Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/eeprom" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>EEPROM Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/flash" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Flash Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/i2c" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>I2C Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/serial" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>'serial' Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/spi" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>SPI Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/uart" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>UART Driver</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/ws2812" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>WS2812 Driver</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/drivers/gpio" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>GPIO Controls</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/hardware_keyboard_guidelines" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Keyboard Guidelines</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Python Development</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/coding_conventions_python" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Coding Conventions</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/cli_development" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>QMK CLI Development</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Configurator Development</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>QMK API</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/api_development_environment" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Development Environment</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/api_development_overview" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Architecture Overview</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>Hardware Platform Development</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><section class="VPSidebarItem level-2" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h4 class="text" data-v-b8d55f3b>Arm/ChibiOS</h4><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/platformdev_selecting_arm_mcu" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Selecting an MCU</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/platformdev_chibios_earlyinit" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Early initialization</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/platformdev_rp2040" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Raspberry Pi RP2040</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/platformdev_proton_c" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Proton C</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/platformdev_blackpill_f4x1" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>WeAct Blackpill F4x1</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>QMK Reference</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/contributing" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Contributing to QMK</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/config_options" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Config Options</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/data_driven_config" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Data Driven Configuration</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/getting_started_make_guide" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Make Documentation</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/documentation_best_practices" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Documentation Best Practices</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/documentation_templates" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Documentation Templates</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/feature_layouts" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Community Layouts</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/unit_testing" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Unit Testing</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/ref_functions" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Useful Functions</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/reference_info_json" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>info.json Format</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-b8d55f3b data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><h3 class="text" data-v-b8d55f3b>For a Deeper Understanding</h3><!----></div><div class="items" data-v-b8d55f3b><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/how_keyboards_work" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>How Keyboards Work</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/how_a_matrix_works" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>How a Matrix Works</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/understanding_qmk" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>Understanding QMK</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-5d98c3a5 data-v-1428d186><div class="VPDoc has-sidebar has-aside" data-v-1428d186 data-v-39a288b8><!--[--><!--]--><div class="container" data-v-39a288b8><div class="aside" data-v-39a288b8><div class="aside-curtain" data-v-39a288b8></div><div class="aside-container" data-v-39a288b8><div class="aside-content" data-v-39a288b8><div class="VPDocAside" data-v-39a288b8 data-v-3f215769><!--[--><!--]--><!--[--><!--]--><div class="VPDocAsideOutline" role="navigation" data-v-3f215769 data-v-935f8a84><div class="content" data-v-935f8a84><div class="outline-marker" data-v-935f8a84></div><div class="outline-title" role="heading" aria-level="2" data-v-935f8a84>On this page</div><nav aria-labelledby="doc-outline-aria-label" data-v-935f8a84><span class="visually-hidden" id="doc-outline-aria-label" data-v-935f8a84> Table of Contents for current page </span><ul class="VPDocOutlineItem root" data-v-935f8a84 data-v-b933a997><!--[--><!--]--></ul></nav></div></div><!--[--><!--]--><div class="spacer" data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-39a288b8><div class="content-container" data-v-39a288b8><!--[--><!--]--><main class="main" data-v-39a288b8><div style="position:relative;" class="vp-doc _features_autocorrect" data-v-39a288b8><div><h1 id="autocorrect" tabindex="-1">Autocorrect <a class="header-anchor" href="#autocorrect" aria-label="Permalink to &quot;Autocorrect&quot;"></a></h1><p>There are a lot of words that are prone to being typed incorrectly, due to habit, sequence or just user error. This feature leverages your firmware to automatically correct these errors, to help reduce typos.</p><h2 id="how-does-it-work" tabindex="-1">How does it work? <a class="header-anchor" href="#how-does-it-work" aria-label="Permalink to &quot;How does it work? {#how-does-it-work}&quot;"></a></h2><p>The feature maintains a small buffer of recent key presses. On each key press, it checks whether the buffer ends in a recognized typo, and if so, automatically sends keystrokes to correct it.</p><p>The tricky part is how to efficiently check the buffer for typos. We dont want to spend too much memory or time on storing or searching the typos. A good solution is to represent the typos with a trie data structure. A trie is a tree data structure where each node is a letter, and words are formed by following a path to one of the leaves.</p><p><img src="https://i.imgur.com/HL5DP8H.png" alt="An example trie"></p><p>Since we search whether the buffer ends in a typo, we store the trie writing in reverse. The trie is queried starting from the last letter, then second to last letter, and so on, until either a letter doesnt match or we reach a leaf, meaning a typo was found.</p><h2 id="how-do-i-enable-autocorrection" tabindex="-1">How do I enable Autocorrection <a class="header-anchor" href="#how-do-i-enable-autocorrection" aria-label="Permalink to &quot;How do I enable Autocorrection {#how-do-i-enable-autocorrection}&quot;"></a></h2><p>In your <code>rules.mk</code>, add this:</p><div class="language-make vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">make</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">AUTOCORRECT_ENABLE = yes</span></span></code></pre></div><p>Additionally, you will need a library for autocorrection. A small sample library is included by default, so that you can get up and running right away, but you can provide a customized library.</p><p>By default, autocorrect is disabled. To enable it, you need to use the <code>AC_TOGG</code> keycode to enable it. The status is stored in persistent memory, so you shouldn&#39;t need to enabled it again.</p><h2 id="customizing-autocorrect-library" tabindex="-1">Customizing autocorrect library <a class="header-anchor" href="#customizing-autocorrect-library" aria-label="Permalink to &quot;Customizing autocorrect library {#customizing-autocorrect-library}&quot;"></a></h2><p>To provide a custom library, you need to create a text file with the corrections. For instance:</p><div class="language-text vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">text</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span>:thier -&gt; their</span></span>
<span class="line"><span>fitler -&gt; filter</span></span>
<span class="line"><span>lenght -&gt; length</span></span>
<span class="line"><span>ouput -&gt; output</span></span>
<span class="line"><span>widht -&gt; width</span></span></code></pre></div><p>The syntax is <code>typo -&gt; correction</code>. Typos and corrections are case insensitive, and any whitespace before or after the typo and correction is ignored. The typo must be only the letters az, or the special character : representing a word break. The correction may have any non-unicode characters.</p><p>Then, run:</p><div class="language-sh vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">sh</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">qmk</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> generate-autocorrect-data</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> autocorrect_dictionary.txt</span></span></code></pre></div><p>This will process the file and produce an <code>autocorrect_data.h</code> file with the trie library, in the folder that you are at. You can specify the keyboard and keymap (eg <code>-kb planck/rev6 -km jackhumbert</code>), and it will place the file in that folder instead. But as long as the file is located in your keymap folder, or user folder, it should be picked up automatically.</p><p>This file will look like this:</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// :thier -&gt; their</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// fitler -&gt; filter</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// lenght -&gt; length</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ouput -&gt; output</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// widht -&gt; width</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#define</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> AUTOCORRECT_MIN_LENGTH</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 5</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // &quot;ouput&quot;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#define</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> AUTOCORRECT_MAX_LENGTH</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 6</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // &quot;:thier&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#define</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> DICTIONARY_SIZE</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 74</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">static</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> uint8_t</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> autocorrect_data</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[DICTIONARY_SIZE] PROGMEM </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">85</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">7</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">23</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">35</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">8</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">76</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">16</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">15</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">25</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 11</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">23</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">44</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">130</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">101</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">105</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">114</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">23</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">12</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">9</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">131</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">108</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">116</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">101</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">114</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">75</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">42</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">24</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">64</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">71</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">49</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">56</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">12</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">26</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">129</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">116</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">104</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">17</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">8</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">15</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">129</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">116</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">104</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">19</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">24</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">18</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">130</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">116</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">112</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">117</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">116</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">};</span></span></code></pre></div><h3 id="avoiding-false-triggers" tabindex="-1">Avoiding false triggers <a class="header-anchor" href="#avoiding-false-triggers" aria-label="Permalink to &quot;Avoiding false triggers {#avoiding-false-triggers}&quot;"></a></h3><p>By default, typos are searched within words, to find typos within longer identifiers like maxFitlerOuput. While this is useful, a consequence is that autocorrection will falsely trigger when a typo happens to be a substring of a correctly-spelled word. For instance, if we had thier -&gt; their as an entry, it would falsely trigger on (correct, though relatively uncommon) words like “wealthier” and “filthier.”</p><p>The solution is to set a word break : before and/or after the typo to constrain matching. : matches space, period, comma, underscore, digits, and most other non-alpha characters.</p><table><thead><tr><th>Text</th><th style="text-align:center;">thier</th><th style="text-align:center;">:thier</th><th style="text-align:center;">thier:</th><th style="text-align:center;">:thier:</th></tr></thead><tbody><tr><td>see <code>thier</code> typo</td><td style="text-align:center;">matches</td><td style="text-align:center;">matches</td><td style="text-align:center;">matches</td><td style="text-align:center;">matches</td></tr><tr><td>its <code>thiers</code></td><td style="text-align:center;">matches</td><td style="text-align:center;">matches</td><td style="text-align:center;">no</td><td style="text-align:center;">no</td></tr><tr><td>wealthier words</td><td style="text-align:center;">matches</td><td style="text-align:center;">no</td><td style="text-align:center;">matches</td><td style="text-align:center;">no</td></tr></tbody></table><p>:thier: is most restrictive, matching only when thier is a whole word.</p><p>The <code>qmk generate-autocorrect-data</code> commands can make an effort to check for entries that would false trigger as substrings of correct words. It searches each typo against a dictionary of 25K English words from the english_words Python package, provided its installed. (run <code>python3 -m pip install english_words</code> to install it.)</p><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>Unfortunately, this is limited to just english words, at this point.</p></div><h2 id="overriding-autocorrect" tabindex="-1">Overriding Autocorrect <a class="header-anchor" href="#overriding-autocorrect" aria-label="Permalink to &quot;Overriding Autocorrect&quot;"></a></h2><p>Occasionally you might actually want to type a typo (for instance, while editing autocorrect_dict.txt) without being autocorrected. There are a couple of ways to do this:</p><ol><li>Begin typing the typo.</li><li>Before typing the last letter, press and release the Ctrl or Alt key.</li><li>Type the remaining letters.</li></ol><p>This works because the autocorrection implementation doesnt understand hotkeys, so it resets itself whenever a modifier other than shift is held.</p><p>Additionally, you can use the <code>AC_TOGG</code> keycode to toggle the on/off status for Autocorrect.</p><h3 id="keycodes" tabindex="-1">Keycodes <a class="header-anchor" href="#keycodes" aria-label="Permalink to &quot;Keycodes {#keycodes}&quot;"></a></h3><table><thead><tr><th>Keycode</th><th>Aliases</th><th>Description</th></tr></thead><tbody><tr><td><code>QK_AUTOCORRECT_ON</code></td><td><code>AC_ON</code></td><td>Turns on the Autocorrect feature.</td></tr><tr><td><code>QK_AUTOCORRECT_OFF</code></td><td><code>AC_OFF</code></td><td>Turns off the Autocorrect feature.</td></tr><tr><td><code>QK_AUTOCORRECT_TOGGLE</code></td><td><code>AC_TOGG</code></td><td>Toggles the status of the Autocorrect feature.</td></tr></tbody></table><h2 id="user-callback-functions" tabindex="-1">User Callback Functions <a class="header-anchor" href="#user-callback-functions" aria-label="Permalink to &quot;User Callback Functions&quot;"></a></h2><h3 id="process-autocorrect" tabindex="-1">Process Autocorrect <a class="header-anchor" href="#process-autocorrect" aria-label="Permalink to &quot;Process Autocorrect&quot;"></a></h3><p>Callback function <code>bool process_autocorrect_user(uint16_t *keycode, keyrecord_t *record, uint8_t *typo_buffer_size, uint8_t *mods)</code> is available to customise incoming keycodes and handle exceptions. You can use this function to sanitise input before they are passed onto the autocorrect engine</p><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>Sanitisation of input is required because autocorrect will only match 8-bit <a href="./../keycodes_basic">basic keycodes</a> for typos. If valid modifier keys or 16-bit keycodes that are part of a user&#39;s word input (such as Shift + A) is passed through, they will fail typo letter detection. For example a <a href="./../mod_tap">Mod-Tap</a> key such as <code>LCTL_T(KC_A)</code> is 16-bit and should be masked for the 8-bit <code>KC_A</code>.</p></div><p>The default user callback function is found inside <code>quantum/process_keycode/process_autocorrect.c</code>. It covers most use-cases for QMK special functions and quantum keycodes, including <a href="#overriding-autocorrect">overriding autocorrect</a> with a modifier other than shift. The <code>process_autocorrect_user</code> function is <code>weak</code> defined to allow user&#39;s copy inside <code>keymap.c</code> (or code files) to overwrite it.</p><h4 id="process-autocorrect-example" tabindex="-1">Process Autocorrect Example <a class="header-anchor" href="#process-autocorrect-example" aria-label="Permalink to &quot;Process Autocorrect Example&quot;"></a></h4><p>If you have a custom keycode <code>QMKBEST</code> that should be ignored as part of a word, and another custom keycode <code>QMKLAYER</code> that should override autocorrect, both can be added to the bottom of the <code>process_autocorrect_user</code> <code>switch</code> statement in your source code:</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> process_autocorrect_user</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint16_t</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">keycode</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">keyrecord_t</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">record</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint8_t</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">typo_buffer_size</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint8_t</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">mods</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // See quantum_keycodes.h for reference on these matched ranges.</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> switch</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">keycode) {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Exclude these keycodes from processing.</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> KC_LSFT:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> KC_RSFT:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> KC_CAPS:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QK_TO ... QK_ONE_SHOT_LAYER_MAX:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QK_LAYER_TAP_TOGGLE ... QK_LAYER_MOD_MAX:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QK_ONE_SHOT_MOD ... QK_ONE_SHOT_MOD_MAX:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Mask for base keycode from shifted keys.</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QK_LSFT ... QK_LSFT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">+</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 255</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QK_RSFT ... QK_RSFT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">+</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 255</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">keycode </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&gt;=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QK_LSFT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;&amp;</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">keycode </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&lt;=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (QK_LSFT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">+</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 255</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)) {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">mods </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">|=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> MOD_LSFT;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">mods </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">|=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> MOD_RSFT;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">keycode </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;=</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> 0x</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">FF</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Get the basic keycode.</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#ifndef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> NO_ACTION_TAPPING</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Exclude tap-hold keys when they are held down</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // and mask for base keycode when they are tapped.</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"># ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> NO_ACTION_LAYER</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Exclude Layer Tap, if layers are disabled</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // but action tapping is still enabled.</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"># endif</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> case QK_MOD_TAP ... QK_MOD_TAP_MAX:</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Exclude hold if mods other than Shift is not active</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">record</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">tap.count) {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">keycode </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;=</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> 0x</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">FF</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#else</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> case QK_MOD_TAP ... QK_MOD_TAP_MAX:</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Exclude if disabled</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#endif</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Exclude swap hands keys when they are held down</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // and mask for base keycode when they are tapped.</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QK_SWAP_HANDS ... QK_SWAP_HANDS_MAX:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> SWAP_HANDS_ENABLE</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">keycode </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&gt;=</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> 0x</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">56F0</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> ||</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> !</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">record</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">tap.count) {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">keycode </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;=</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> 0x</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">FF</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#else</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Exclude if disabled</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#endif</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Handle custom keycodes</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QMKBEST:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> QMKLAYER:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">typo_buffer_size </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // Disable autocorrect while a mod other than shift is active.</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> ((</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">mods </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> ~</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">MOD_MASK_SHIFT) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">typo_buffer_size </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>In this callback function, <code>return false</code> will skip processing of that keycode for autocorrect. Adding <code>*typo_buffer_size = 0</code> will also reset the autocorrect buffer at the same time, cancelling any current letters already stored in the buffer.</p></div><h3 id="apply-autocorrect" tabindex="-1">Apply Autocorrect <a class="header-anchor" href="#apply-autocorrect" aria-label="Permalink to &quot;Apply Autocorrect&quot;"></a></h3><p>Additionally, <code>apply_autocorrect(uint8_t backspaces, const char *str, char *typo, char *correct)</code> allows for users to add additional handling to the autocorrection, or replace the functionality entirely. This passes on the number of backspaces needed to replace the words, as well as the replacement string (partial word, not the full word), and the typo and corrected strings (complete words).</p><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>Due to the way code works (no notion of words, just a stream of letters), the <code>typo</code> and <code>correct</code> strings are a best bet and could be &quot;wrong&quot;. For example you may get <code>wordtpyo</code> &amp; <code>wordtypo</code> instead of the expected <code>tpyo</code> &amp; <code>typo</code>.</p></div><h4 id="apply-autocorrect-example" tabindex="-1">Apply Autocorrect Example <a class="header-anchor" href="#apply-autocorrect-example" aria-label="Permalink to &quot;Apply Autocorrect Example&quot;"></a></h4><p>This following example will play a sound when a typo is autocorrected and execute the autocorrection itself:</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> AUDIO_ENABLE</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">float</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> autocorrect_song</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">[]</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">] </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> SONG</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(TERMINAL_SOUND);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#endif</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> apply_autocorrect</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint8_t</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> backspaces</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">str</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">typo</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">correct</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> AUDIO_ENABLE</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> PLAY_SONG</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(autocorrect_song);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#endif</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> for</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint8_t</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> i </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">; i </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&lt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> backspaces; </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">++</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">i) {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> tap_code</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(KC_BSPC);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> send_string_P</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(str);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>In this callback function, <code>return false</code> will stop the normal processing of autocorrect, which requires manually handling of removing the &quot;bad&quot; characters and typing the new characters.</p></div><div class="warning custom-block"><p class="custom-block-title">WARNING</p><p><em><strong>IMPORTANT</strong></em>: <code>str</code> is a pointer to <code>PROGMEM</code> data for the autocorrection. If you return false, and want to send the string, this needs to use <code>send_string_P</code> and not <code>send_string</code> nor <code>SEND_STRING</code>.</p></div><p>You can also use <code>apply_autocorrect</code> to detect and display the event but allow internal code to execute the autocorrection with <code>return true</code>:</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> apply_autocorrect</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint8_t</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> backspaces</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">str</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">typo</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">correct</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> OLED_ENABLE</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> oled_write_P</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">PSTR</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Auto-corrected&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">), </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#endif</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> CONSOLE_ENABLE</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;&#39;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%s</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39; was corrected to &#39;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%s</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, typo, correct);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#endif</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><h3 id="autocorrect-status" tabindex="-1">Autocorrect Status <a class="header-anchor" href="#autocorrect-status" aria-label="Permalink to &quot;Autocorrect Status&quot;"></a></h3><p>Additional user callback functions to manipulate Autocorrect:</p><table><thead><tr><th>Function</th><th>Description</th></tr></thead><tbody><tr><td><code>autocorrect_enable()</code></td><td>Turns Autocorrect on.</td></tr><tr><td><code>autocorrect_disable()</code></td><td>Turns Autocorrect off.</td></tr><tr><td><code>autocorrect_toggle()</code></td><td>Toggles Autocorrect.</td></tr><tr><td><code>autocorrect_is_enabled()</code></td><td>Returns true if Autocorrect is currently on.</td></tr></tbody></table><h2 id="appendix" tabindex="-1">Appendix: Trie binary data format <a class="header-anchor" href="#appendix" aria-label="Permalink to &quot;Appendix: Trie binary data format {#appendix}&quot;"></a></h2><p>This section details how the trie is serialized to byte data in autocorrect_data. You dont need to care about this to use this autocorrection implementation. But it is documented for the record in case anyone is interested in modifying the implementation, or just curious how it works.</p><p>What I did here is fairly arbitrary, but it is simple to decode and gets the job done.</p><h3 id="encoding" tabindex="-1">Encoding <a class="header-anchor" href="#encoding" aria-label="Permalink to &quot;Encoding {#encoding}&quot;"></a></h3><p>All autocorrection data is stored in a single flat array autocorrect_data. Each trie node is associated with a byte offset into this array, where data for that node is encoded, beginning with root at offset 0. There are three kinds of nodes. The highest two bits of the first byte of the node indicate what kind:</p><ul><li>00 ⇒ chain node: a trie node with a single child.</li><li>01 ⇒ branching node: a trie node with multiple children.</li><li>10 ⇒ leaf node: a leaf, corresponding to a typo and storing its correction.</li></ul><p><img src="https://i.imgur.com/HL5DP8H.png" alt="An example trie"></p><p><strong>Branching node</strong>. Each branch is encoded with one byte for the keycode (KC_AKC_Z) followed by a link to the child node. Links between nodes are 16-bit byte offsets relative to the beginning of the array, serialized in little endian order.</p><p>All branches are serialized this way, one after another, and terminated with a zero byte. As described above, the node is identified as a branch by setting the two high bits of the first byte to 01, done by bitwise ORing the first keycode with 64. keycode. The root node for the above figure would be serialized like:</p><div class="language- vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang"></span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span>+-------+-------+-------+-------+-------+-------+-------+</span></span>
<span class="line"><span>| R|64 | node 2 | T | node 3 | 0 |</span></span>
<span class="line"><span>+-------+-------+-------+-------+-------+-------+-------+</span></span></code></pre></div><p><strong>Chain node</strong>. Tries tend to have long chains of single-child nodes, as seen in the example above with f-i-t-l in fitler. So to save space, we use a different format to encode chains than branching nodes. A chain is encoded as a string of keycodes, beginning with the node closest to the root, and terminated with a zero byte. The child of the last node in the chain is encoded immediately after. That child could be either a branching node or a leaf.</p><p>In the figure above, the f-i-t-l chain is encoded as</p><div class="language- vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang"></span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span>+-------+-------+-------+-------+-------+</span></span>
<span class="line"><span>| L | T | I | F | 0 |</span></span>
<span class="line"><span>+-------+-------+-------+-------+-------+</span></span></code></pre></div><p>If we were to encode this chain using the same format used for branching nodes, we would encode a 16-bit node link with every node, costing 8 more bytes in this example. Across the whole trie, this adds up. Conveniently, we can point to intermediate points in the chain and interpret the bytes in the same way as before. E.g. starting at the i instead of the l, and the subchain has the same format.</p><p><strong>Leaf node</strong>. A leaf node corresponds to a particular typo and stores data to correct the typo. The leaf begins with a byte for the number of backspaces to type, and is followed by a null-terminated ASCII string of the replacement text. The idea is, after tapping backspace the indicated number of times, we can simply pass this string to the <code>send_string_P</code> function. For fitler, we need to tap backspace 3 times (not 4, because we catch the typo as the final r is pressed) and replace it with lter. To identify the node as a leaf, the two high bits are set to 10 by ORing the backspace count with 128:</p><div class="language- vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang"></span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span>+-------+-------+-------+-------+-------+-------+</span></span>
<span class="line"><span>| 3|128 | &#39;l&#39; | &#39;t&#39; | &#39;e&#39; | &#39;r&#39; | 0 |</span></span>
<span class="line"><span>+-------+-------+-------+-------+-------+-------+</span></span></code></pre></div><h3 id="decoding" tabindex="-1">Decoding <a class="header-anchor" href="#decoding" aria-label="Permalink to &quot;Decoding {#decoding}&quot;"></a></h3><p>This format is by design decodable with fairly simple logic. A 16-bit variable state represents our current position in the trie, initialized with 0 to start at the root node. Then, for each keycode, test the highest two bits in the byte at state to identify the kind of node.</p><ul><li>00 ⇒ <strong>chain node</strong>: If the nodes byte matches the keycode, increment state by one to go to the next byte. If the next byte is zero, increment again to go to the following node.</li><li>01 ⇒ <strong>branching node</strong>: Search the branches for one that matches the keycode, and follow its node link.</li><li>10 ⇒ <strong>leaf node</strong>: a typo has been found! We read its first byte for the number of backspaces to type, then pass its following bytes to send_string_P to type the correction.</li></ul><h2 id="credits" tabindex="-1">Credits <a class="header-anchor" href="#credits" aria-label="Permalink to &quot;Credits&quot;"></a></h2><p>Credit goes to <a href="https://github.com/getreuer" target="_blank" rel="noreferrer">getreuer</a> for originally implementing this <a href="https://getreuer.info/posts/keyboards/autocorrection/#how-does-it-work" target="_blank" rel="noreferrer">here</a>. As well as to <a href="https://github.com/filterpaper" target="_blank" rel="noreferrer">filterpaper</a> for converting the code to use PROGMEM, and additional improvements.</p></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-09de1c0f><!--[--><!--]--><!----><nav class="prev-next" data-v-09de1c0f><div class="pager" data-v-09de1c0f><a class="VPLink link pager-link prev" href="/features/auto_shift" data-v-09de1c0f><!--[--><span class="desc" data-v-09de1c0f>Previous page</span><span class="title" data-v-09de1c0f>Auto Shift</span><!--]--></a></div><div class="pager" data-v-09de1c0f><a class="VPLink link pager-link next" href="/features/caps_word" data-v-09de1c0f><!--[--><span class="desc" data-v-09de1c0f>Next page</span><span class="title" data-v-09de1c0f>Caps Word</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><!----><!--[--><!--]--></div></div>
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