comment_form in core/modules/comment/comment.module

Form constructor for the basic commenting form.

entity_example_basic_form in modules/examples/entity_example/entity_example.module

Form function to create an entity_example_basic entity.

FieldAttachOtherTestCase::testFieldAttachForm in core/modules/field/tests/field.test

Test field_attach_form().

FieldAttachOtherTestCase::testFieldAttachSubmit in core/modules/field/tests/field.test

Test field_attach_submit().

FieldFormTestCase::testFieldFormAccess in core/modules/field/tests/field.test

Tests fields with no 'edit' access.

field_test_entity_form in core/modules/field/tests/field_test/field_test.entity.inc

Test_entity form.

field_test_entity_nested_form in core/modules/field/tests/field_test/field_test.entity.inc

Form combining two separate entities.

file_add_upload_step_fields in core/modules/file/file.pages.inc

Generate form fields for the fourth step in the add file wizard.

file_manage_form in core/modules/file/file.pages.inc

Page callback: Form constructor for the file manage form.

form_test_form_user_register_form_alter in core/modules/simpletest/tests/form_test.module

Implements hook_form_FORM_ID_alter() for the registration form.

node_form in core/modules/node/node.pages.inc

Form constructor for the node add/edit form.

taxonomy_form_term in core/modules/taxonomy/taxonomy.admin.inc

Form function for the term edit form.

user_profile_form in core/modules/user/user.pages.inc

Form builder; edit a user account.

user_register_form in core/modules/user/user.module

Form builder; the user registration form.