backend/sdoc: allow using "DESCRIPTION" or "CONTENT" field instead of…

… "STATEMENT"

Closes #1823

strictdoc/backend/sdoc/error_handling.py

@@ -261,12 +261,36 @@ def grammar_missing_reserved_statement(
         return StrictDocSemanticError(
             title=(
                 f"Grammar element '{grammar_element.tag}' is missing a reserved"
-                " STATEMENT field declaration."
+                " content field declaration, one of {STATEMENT, DESCRIPTION, CONTENT}."
             ),
             hint=(
-                "STATEMENT plays a key role in StrictDoc's HTML user interface "
+                "A content field plays a key role in StrictDoc's HTML user interface "
                 "as well as in the other export formats. It is a reserved field"
-                " that any grammar must provide."
+                " that any grammar element must have."
+            ),
+            example=None,
+            line=line,
+            col=column,
+            filename=path_to_sdoc_file,
+        )
+
+    @staticmethod
+    def grammar_reserved_statement_must_be_required(
+        grammar_element: GrammarElement,
+        field_title: str,
+        path_to_sdoc_file: str,
+        line: int,
+        column: int,
+    ):
+        return StrictDocSemanticError(
+            title=(
+                f"Grammar element '{grammar_element.tag}'s {field_title} field "
+                f"must be declared as 'REQUIRED: True'."
+            ),
+            hint=(
+                "A content field plays a key role in StrictDoc's HTML user interface "
+                "as well as in the other export formats. It is a reserved field"
+                " that any grammar element must have with 'REQUIRED: True'."
             ),
             example=None,
             line=line,

strictdoc/backend/sdoc/models/document_grammar.py

@@ -1,6 +1,6 @@
 # mypy: disable-error-code="no-redef,no-untyped-call,no-untyped-def,union-attr,type-arg"
 from collections import OrderedDict
-from typing import Dict, List, Optional, Set, Union
+from typing import Dict, List, Optional, Set, Tuple, Union
 
 from strictdoc.backend.sdoc.models.type_system import (
     RESERVED_NON_META_FIELDS,
@@ -75,9 +75,27 @@ def __init__(
             else create_default_relations(self)
         )
         fields_map: OrderedDict = OrderedDict()
-        for field in fields:
-            fields_map[field.title] = field
+
+        statement_field: Optional[Tuple[str, int]] = None
+        description_field: Optional[Tuple[str, int]] = None
+        content_field: Optional[Tuple[str, int]] = None
+        for field_idx_, field_ in enumerate(fields):
+            fields_map[field_.title] = field_
+            if field_.title == RequirementFieldName.STATEMENT:
+                statement_field = (RequirementFieldName.STATEMENT, field_idx_)
+            elif field_.title == "DESCRIPTION":
+                description_field = (
+                    RequirementFieldName.DESCRIPTION,
+                    field_idx_,
+                )
+            elif field_.title == "CONTENT":
+                content_field = (RequirementFieldName.CONTENT, field_idx_)
+            else:
+                pass
         self.fields_map: Dict[str, GrammarElementField] = fields_map
+        self.content_field: Tuple[str, int] = (
+            statement_field or description_field or content_field or ("", -1)
+        )
         self.mid: MID = MID.create()
 
     @staticmethod

strictdoc/backend/sdoc/models/free_text.py

@@ -1,5 +1,5 @@
 import html
-from typing import List, Any, Optional
+from typing import Any, List, Optional
 
 from strictdoc.backend.sdoc.models.anchor import Anchor
 from strictdoc.backend.sdoc.models.inline_link import InlineLink

strictdoc/backend/sdoc/models/node.py

@@ -205,8 +205,11 @@ def reserved_title(self) -> Optional[str]:
 
     @property
     def reserved_statement(self) -> Optional[str]:
+        element: GrammarElement = self.document.grammar.elements_by_type[
+            self.requirement_type
+        ]
         return self._get_cached_field(
-            RequirementFieldName.STATEMENT, singleline_only=False
+            element.content_field[0], singleline_only=False
         )
 
     @property
@@ -276,6 +279,12 @@ def get_requirement_style_mode(self) -> str:
         assert self.ng_document_reference.get_document() is not None
         return self.ng_document_reference.get_document().config.get_requirement_style_mode()
 
+    def get_content_field_name(self) -> str:
+        element: GrammarElement = self.document.grammar.elements_by_type[
+            self.requirement_type
+        ]
+        return element.content_field[0]
+
     def has_requirement_references(self, ref_type: str) -> bool:
         if len(self.relations) == 0:
             return False
@@ -374,9 +383,7 @@ def enumerate_meta_fields(
             self.requirement_type
         ]
         grammar_field_titles = list(map(lambda f: f.title, element.fields))
-        statement_field_index = grammar_field_titles.index(
-            RequirementFieldName.STATEMENT
-        )
+        statement_field_index: int = element.content_field[1]
         for field in self.enumerate_fields():
             if field.field_name in RESERVED_NON_META_FIELDS:
                 continue
@@ -412,6 +419,13 @@ def get_field_human_title(self, field_name: str) -> str:
         field_human_title = element.fields_map[field_name]
         return field_human_title.get_field_human_name()
 
+    def get_field_human_title_for_statement(self) -> str:
+        element: GrammarElement = self.document.grammar.elements_by_type[
+            self.requirement_type
+        ]
+        field_human_title = element.fields_map[element.content_field[0]]
+        return field_human_title.get_field_human_name()
+
     def get_requirement_prefix(self) -> str:
         parent: Union[SDocSection, SDocDocument] = assert_cast(
             self.parent, (SDocSection, SDocDocument, SDocCompositeNode)
@@ -479,25 +493,11 @@ def set_field_value(
             self.requirement_type
         ]
         grammar_field_titles = list(map(lambda f: f.title, element.fields))
-        # FIXME: This will go away very soon when the RELATIONS become a
-        #        separate field in SDoc REQUIREMENT's grammar.
-        grammar_field_titles.append("REFS")
         field_index = grammar_field_titles.index(field_name)
 
-        try:
-            title_field_index = grammar_field_titles.index(
-                RequirementFieldName.TITLE
-            )
-        except ValueError:
-            # It is a rare edge case when a grammar is without a TITLE but if it
-            # happens, use STATEMENT as a fallback.
-            title_field_index = grammar_field_titles.index(
-                RequirementFieldName.STATEMENT
-            )
-
         field_value = None
         field_value_multiline = None
-        if field_index <= title_field_index:
+        if field_index < element.content_field[1]:
             field_value = value
         else:
             field_value_multiline = value

strictdoc/backend/sdoc/models/type_system.py

@@ -11,14 +11,22 @@ class RequirementFieldName:
     STATUS = "STATUS"
     TAGS = "TAGS"
     TITLE = "TITLE"
+
+    # {STATEMENT, DESCRIPTION, CONTENT} are aliases.
+    # It is assumed that either field is provided for each node.
     STATEMENT = "STATEMENT"
+    DESCRIPTION = "DESCRIPTION"
+    CONTENT = "CONTENT"
+
     RATIONALE = "RATIONALE"
     COMMENT = "COMMENT"
 
 
 RESERVED_NON_META_FIELDS = [
     RequirementFieldName.TITLE,
     RequirementFieldName.STATEMENT,
+    RequirementFieldName.DESCRIPTION,
+    RequirementFieldName.CONTENT,
     RequirementFieldName.COMMENT,
     RequirementFieldName.RATIONALE,
     RequirementFieldName.LEVEL,

strictdoc/backend/sdoc/processor.py

@@ -19,6 +19,10 @@
     SDocNode,
 )
 from strictdoc.backend.sdoc.models.section import SDocSection
+from strictdoc.backend.sdoc.models.type_system import (
+    GrammarElementField,
+    RequirementFieldName,
+)
 from strictdoc.helpers.exception import StrictDocException
 
 
@@ -29,13 +33,10 @@ def __init__(self, path_to_sdoc_file: Optional[str]):
         if path_to_sdoc_file is not None:
             assert os.path.isfile(path_to_sdoc_file), path_to_sdoc_file
             self.path_to_sdoc_dir = os.path.dirname(path_to_sdoc_file)
-
+        self.document_grammar: Optional[DocumentGrammar] = None
         self.document_reference: DocumentReference = DocumentReference()
         self.context_document_reference: DocumentReference = DocumentReference()
         self.document_config: Optional[DocumentConfig] = None
-        self.document_grammar: DocumentGrammar = DocumentGrammar.create_default(
-            None
-        )
         self.document_view: Optional[DocumentView] = None
         self.document_has_requirements = False
 
@@ -48,7 +49,10 @@ def __init__(self, parse_context: ParseContext):
         self.parse_context: ParseContext = parse_context
 
     def process_document(self, document: SDocDocument):
-        document.grammar = self.parse_context.document_grammar
+        document.grammar = (
+            self.parse_context.document_grammar
+            or DocumentGrammar.create_default(document)
+        )
         self.parse_context.document = document
         document.ng_including_document_reference = (
             self.parse_context.context_document_reference
@@ -86,12 +90,26 @@ def process_document_grammar_element(self, grammar_element: GrammarElement):
             grammar_element._tx_position
         )
 
+        if grammar_element.content_field[0] not in grammar_element.fields_map:
+            raise StrictDocSemanticError.grammar_missing_reserved_statement(
+                grammar_element,
+                self.parse_context.path_to_sdoc_file,
+                line_start,
+                col_start,
+            )
+        content_field: GrammarElementField = grammar_element.fields_map[
+            grammar_element.content_field[0]
+        ]
+        # FIXME: Enable for STATEMENT as well. For now, don't want to break
+        #        backward compatibility.
         if (
-            grammar_element.tag == "REQUIREMENT"
-            and "STATEMENT" not in grammar_element.fields_map
+            content_field.title
+            in (RequirementFieldName.DESCRIPTION, RequirementFieldName.CONTENT)
+            and not content_field.required
         ):
-            raise StrictDocSemanticError.grammar_missing_reserved_statement(
+            raise StrictDocSemanticError.grammar_reserved_statement_must_be_required(
                 grammar_element,
+                content_field.title,
                 self.parse_context.path_to_sdoc_file,
                 line_start,
                 col_start,

strictdoc/export/html/form_objects/requirement_form_object.py

@@ -644,13 +644,15 @@ def validate(
                     ),
                 )
 
-        requirement_statement = self.fields["STATEMENT"][
+        requirement_element = self.grammar.elements_by_type[self.element_type]
+        statement_field_name = requirement_element.content_field[0]
+        requirement_statement = self.fields[statement_field_name][
             0
         ].field_unescaped_value
         if requirement_statement is None or len(requirement_statement) == 0:
             self.add_error(
-                "STATEMENT",
-                "Node statement must not be empty.",
+                statement_field_name,
+                f"Node {statement_field_name.lower()} must not be empty.",
             )
         else:
             (
@@ -661,7 +663,7 @@ def validate(
                 context_document=context_document,
             ).write_with_validation(requirement_statement)
             if parsed_html is None:
-                self.add_error("STATEMENT", rst_error)
+                self.add_error(statement_field_name, rst_error)
 
         requirement_uid: Optional[str] = (
             self.fields["UID"][0].field_unescaped_value

strictdoc/export/html/templates/components/requirement/statement/index.jinja

@@ -1,12 +1,12 @@
-{%- if requirement.reserved_statement and view_object.current_view.includes_field(requirement.requirement_type, "STATEMENT") -%}
+{%- if requirement.reserved_statement and view_object.current_view.includes_field(requirement.requirement_type, requirement.get_content_field_name()) -%}
   {%- if truncated_statement is true -%}
     {# truncated in DTR tiny card #}
     <sdoc-requirement-field data-field-label="statement">
       <sdoc-autogen>{{ view_object.markup_renderer.render_truncated_requirement_statement(requirement) }}</sdoc-autogen>
     </sdoc-requirement-field>
   {%- else -%}
     {# default with label #}
-    <sdoc-requirement-field-label>{{ requirement.get_field_human_title("STATEMENT") }}:</sdoc-requirement-field-label>
+    <sdoc-requirement-field-label>{{ requirement.get_field_human_title_for_statement() }}:</sdoc-requirement-field-label>
     <sdoc-requirement-field
       data-field-label="statement"
     >

tests/end2end/screens/document/update_requirement/_validation/update_requirement_empty_statement_DESCRIPTION_instead_STATEMENT/expected_output/document.sdoc

@@ -0,0 +1,23 @@
+[DOCUMENT]
+TITLE: Document 1
+
+[GRAMMAR]
+ELEMENTS:
+- TAG: REQUIREMENT
+  FIELDS:
+  - TITLE: TITLE
+    TYPE: String
+    REQUIRED: True
+  - TITLE: DESCRIPTION
+    TYPE: String
+    REQUIRED: True
+
+[FREETEXT]
+Hello world!
+[/FREETEXT]
+
+[REQUIREMENT]
+TITLE: Requirement title
+DESCRIPTION: >>>
+Requirement statement.
+<<<

tests/end2end/screens/document/update_requirement/_validation/update_requirement_empty_statement_DESCRIPTION_instead_STATEMENT/input/document.sdoc

@@ -0,0 +1,23 @@
+[DOCUMENT]
+TITLE: Document 1
+
+[GRAMMAR]
+ELEMENTS:
+- TAG: REQUIREMENT
+  FIELDS:
+  - TITLE: TITLE
+    TYPE: String
+    REQUIRED: True
+  - TITLE: DESCRIPTION
+    TYPE: String
+    REQUIRED: True
+
+[FREETEXT]
+Hello world!
+[/FREETEXT]
+
+[REQUIREMENT]
+TITLE: Requirement title
+DESCRIPTION: >>>
+Requirement statement.
+<<<

tests/end2end/screens/document/update_requirement/_validation/update_requirement_empty_statement_DESCRIPTION_instead_STATEMENT/test_case.py

@@ -0,0 +1,42 @@
+from tests.end2end.e2e_case import E2ECase
+from tests.end2end.end2end_test_setup import End2EndTestSetup
+from tests.end2end.helpers.screens.document.form_edit_requirement import (
+    Form_EditRequirement,
+)
+from tests.end2end.helpers.screens.project_index.screen_project_index import (
+    Screen_ProjectIndex,
+)
+from tests.end2end.server import SDocTestServer
+
+
+class Test(E2ECase):
+    def test(self):
+        test_setup = End2EndTestSetup(path_to_test_file=__file__)
+
+        with SDocTestServer(
+            input_path=test_setup.path_to_sandbox
+        ) as test_server:
+            self.open(test_server.get_host_and_port())
+
+            screen_project_index = Screen_ProjectIndex(self)
+
+            screen_project_index.assert_on_screen()
+            screen_project_index.assert_contains_document("Document 1")
+
+            screen_document = screen_project_index.do_click_on_first_document()
+
+            screen_document.assert_on_screen_document()
+            screen_document.assert_header_document_title("Document 1")
+
+            screen_document.assert_text("Hello world!")
+
+            requirement = screen_document.get_requirement()
+            form_edit_requirement: Form_EditRequirement = (
+                requirement.do_open_form_edit_requirement()
+            )
+            form_edit_requirement.do_clear_field("DESCRIPTION")
+            form_edit_requirement.do_form_submit_and_catch_error(
+                "Node description must not be empty."
+            )
+
+        assert test_setup.compare_sandbox_and_expected_output()

tests/integration/expect_exit.py

@@ -52,7 +52,7 @@
 if unexpected_exit_code:
     print(  # noqa: T201
         "error: expect_exit: expected exit code: "
-        "f{expected_exit_code}, actual: {process.returncode}."
+        f"{expected_exit_code}, actual: {process.returncode}."
     )
 
 unexpected_content = expect_no_content and len(stdout) > 0