def enterIf_then(self, ctx: ReqBlockParser.If_thenContext):
""" IF expression THEN (stmt | stmt_group) group_qualifier* label? else_clause?;
"""
if LOG_CONTEXT_PATH:
print(context_path(ctx), file=sys.stderr)
# Capture the conditional expression's terminals
expr = ctx.expression()
terminals = []
expression_terminals(expr, terminals)
def enterCourse_list(self, ctx: ReqBlockParser.Course_listContext):
""" course_list : course_item (and_list | or_list)? course_qualifier* label?;
course_item : discipline? catalog_number course_qualifier*;
and_list : (list_and course_item )+;
or_list : (list_or course_item)+;
"""
context_path_str = context_path(ctx)
if LOG_CONTEXT_PATH:
print(context_path_str, file=sys.stderr)
if 'except' in context_path_str.lower(
) or 'includ' in context_path_str.lower():
return
course_list = build_course_list(self.institution, ctx)
self.sections[self.scribe_section].append(course_list)
def dispatch(ctx: any, institution: str, requirement_id: str):
""" Invoke the appropriate handler given its top-level context.
"""
which_part = 'header' if context_path(ctx).lower().startswith('head') else 'body'
key = class_name(ctx).lower()
try:
if which_part == 'header':
return dispatch_header[key](ctx, institution, requirement_id)
else:
return dispatch_body[key](ctx, institution, requirement_id)
except KeyError as key_error:
key_error = str(key_error).strip('\'')
nested = f' while processing “{key}”' if key != key_error else ''
if DEBUG:
# Missing handler: report it and recover ever so gracefully
# print_stack(file=sys.stderr)
print(f'No dispatch method for “{key_error}”{nested}: '
f'{institution=}; {requirement_id=}; {which_part=}', file=sys.stderr)
return {'tag': 'Dispatch_Error',
'method': f'“{key_error}”{nested}',
'institution': institution,
'requirement_id': requirement_id,
'part': which_part}
def enterGroup_qualifier(self, ctx: ReqBlockParser.Group_qualifierContext):
"""
"""
if LOG_CONTEXT_PATH:
print(context_path(ctx), file=sys.stderr)
def enterEnd_if(self, ctx: ReqBlockParser.End_ifContext):
"""
"""
if LOG_CONTEXT_PATH:
print(context_path(ctx), file=sys.stderr)
def enterBody(self, ctx: ReqBlockParser.BodyContext):
"""
"""
if LOG_CONTEXT_PATH:
print(context_path(ctx), file=sys.stderr)
self.scribe_section = ScribeSection.BODY