Add semantic markup support. (#4)

Author: felixfontein

changelogs/fragments/4-semantic-markup.yml

@@ -0,0 +1,2 @@
+major_changes:
+  - Support new semantic markup in documentation (https://github.com/ansible-community/antsibull-docs/pull/4).

pyproject.toml

@@ -38,7 +38,7 @@ ansible-pygments = "*"
 antsibull-core = ">= 1.2.0, < 3.0.0"
 asyncio-pool = "*"
 docutils = "*"
-jinja2 = "*"
+jinja2 = ">= 3.0"
 packaging = "*"
 rstcheck = ">= 3.0.0, < 7.0.0"
 sphinx = "*"

src/antsibull_docs/jinja2/filters.py

@@ -12,13 +12,24 @@
 from collections.abc import Mapping, Sequence
 
 from antsibull_core.logging import log
-from jinja2.runtime import Undefined
+from jinja2.runtime import Context, Undefined
 
 mlog = log.fields(mod=__name__)
 
 _EMAIL_ADDRESS = re.compile(r"(?:<{mail}>|\({mail}\)|{mail})".format(mail=r"[\w.+-]+@[\w.-]+\.\w+"))
 
 
+def extract_plugin_data(context: Context) -> t.Tuple[t.Optional[str], t.Optional[str]]:
+    plugin_fqcn = context.get('plugin_name')
+    plugin_type = context.get('plugin_type')
+    if plugin_fqcn is None or plugin_type is None:
+        return None, None
+    # if plugin_type == 'role':
+    #     entry_point = context.get('entry_point', 'main')
+    #     # FIXME: use entry_point
+    return plugin_fqcn, plugin_type
+
+
 def documented_type(text) -> str:
     ''' Convert any python type to a type for documentation '''
 

src/antsibull_docs/jinja2/htmlify.py

@@ -12,7 +12,11 @@
 from urllib.parse import quote
 
 from antsibull_core.logging import log
+from jinja2.runtime import Context
+from jinja2.utils import pass_context
 
+from ..semantic_helper import parse_option, parse_return_value
+from .filters import extract_plugin_data
 from .parser import Command, CommandSet, convert_text
 
 mlog = log.fields(mod=__name__)
@@ -33,9 +37,13 @@ def _create_error(text: str, error: str) -> str:
 
 
 class _Context:
+    j2_context: Context
     counts: t.Dict[str, int]
+    plugin_fqcn: t.Optional[str]
+    plugin_type: t.Optional[str]
 
-    def __init__(self):
+    def __init__(self, j2_context: Context):
+        self.j2_context = j2_context
         self.counts = {
             'italic': 0,
             'bold': 0,
@@ -51,6 +59,7 @@ def __init__(self):
             'return-value': 0,
             'ruler': 0,
         }
+        self.plugin_fqcn, self.plugin_type = extract_plugin_data(j2_context)
 
 
 # In the following, we make heavy use of escaped whitespace ("\ ") being removed from the output.
@@ -157,6 +166,107 @@ def handle(self, parameters: t.List[str], context: t.Any) -> str:
         return f"<code class='docutils literal notranslate'>{html_escape(parameters[0])}</code>"
 
 
+class _OptionName(Command):
+    command = 'O'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['option-name'] += 1
+        if context.plugin_fqcn is None or context.plugin_type is None:
+            raise Exception('The markup O(...) cannot be used outside a plugin or role')
+        text = parameters[0]
+        try:
+            plugin_fqcn, plugin_type, option_link, option, value = parse_option(
+                text, context.plugin_fqcn, context.plugin_type, require_plugin=False)
+        except ValueError as exc:
+            return _create_error(f'O({text})', str(exc))
+        if value is None:
+            cls = 'ansible-option'
+            text = f'{option}'
+            strong_start = '<strong>'
+            strong_end = '</strong>'
+        else:
+            cls = 'ansible-option-value'
+            text = f'{option}={value}'
+            strong_start = ''
+            strong_end = ''
+        if plugin_fqcn and plugin_type and plugin_fqcn.count('.') >= 2:
+            # TODO: handle role arguments (entrypoint!)
+            namespace, name, plugin = plugin_fqcn.split('.', 2)
+            url = f'../../{namespace}/{name}/{plugin}_{plugin_type}.html'
+            fragment = f'parameter-{quote(option_link.replace(".", "/"))}'
+            link_start = (
+                f'<a class="reference internal" href="{url}#{fragment}">'
+                '<span class="std std-ref"><span class="pre">'
+            )
+            link_end = '</span></span></a>'
+        else:
+            link_start = ''
+            link_end = ''
+        return (
+            f'<code class="{cls} literal notranslate">'
+            f'{strong_start}{link_start}{text}{link_end}{strong_end}</code>'
+        )
+
+
+class _OptionValue(Command):
+    command = 'V'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['option-value'] += 1
+        text = parameters[0]
+        return f'<code class="ansible-value literal notranslate">{html_escape(text)}</code>'
+
+
+class _EnvVariable(Command):
+    command = 'E'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['environment-var'] += 1
+        text = parameters[0]
+        return f'<code class="xref std std-envvar literal notranslate">{html_escape(text)}</code>'
+
+
+class _RetValue(Command):
+    command = 'RV'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['return-value'] += 1
+        if context.plugin_fqcn is None or context.plugin_type is None:
+            raise Exception('The markup RV(...) cannot be used outside a plugin or role')
+        text = parameters[0]
+        try:
+            plugin_fqcn, plugin_type, rv_link, rv, value = parse_return_value(
+                text, context.plugin_fqcn, context.plugin_type, require_plugin=False)
+        except ValueError as exc:
+            return _create_error(f'RV({text})', str(exc))
+        cls = 'ansible-return-value'
+        if value is None:
+            text = f'{rv}'
+        else:
+            text = f'{rv}={value}'
+        if plugin_fqcn and plugin_type and plugin_fqcn.count('.') >= 2:
+            namespace, name, plugin = plugin_fqcn.split('.', 2)
+            url = f'../../{namespace}/{name}/{plugin}_{plugin_type}.html'
+            fragment = f'return-{quote(rv_link.replace(".", "/"))}'
+            link_start = (
+                f'<a class="reference internal" href="{url}#{fragment}">'
+                '<span class="std std-ref"><span class="pre">'
+            )
+            link_end = '</span></span></a>'
+        else:
+            link_start = ''
+            link_end = ''
+        return f'<code class="{cls} literal notranslate">{link_start}{text}{link_end}</code>'
+
+
 class _HorizontalLine(Command):
     command = 'HORIZONTALLINE'
     parameter_count = 0
@@ -176,16 +286,21 @@ def handle(self, parameters: t.List[str], context: t.Any) -> str:
     _Link(),
     _Ref(),
     _Const(),
+    _OptionName(),
+    _OptionValue(),
+    _EnvVariable(),
+    _RetValue(),
     _HorizontalLine(),
 ])
 
 
-def html_ify(text: str) -> str:
+@pass_context
+def html_ify(context: Context, text: str) -> str:
     ''' convert symbols like I(this is in italics) to valid HTML '''
     flog = mlog.fields(func='html_ify')
     flog.fields(text=text).debug('Enter')
 
-    our_context = _Context()
+    our_context = _Context(context)
 
     try:
         text = convert_text(text, _COMMAND_SET, html_escape, our_context)

src/antsibull_docs/jinja2/rstify.py

@@ -11,7 +11,11 @@
 from urllib.parse import quote
 
 from antsibull_core.logging import log
+from jinja2.runtime import Context
+from jinja2.utils import pass_context
 
+from ..semantic_helper import augment_plugin_name_type
+from .filters import extract_plugin_data
 from .parser import Command, CommandSet, convert_text
 
 mlog = log.fields(mod=__name__)
@@ -61,9 +65,13 @@ def _create_error(text: str, error: str) -> str:
 
 
 class _Context:
+    j2_context: Context
     counts: t.Dict[str, int]
+    plugin_fqcn: t.Optional[str]
+    plugin_type: t.Optional[str]
 
-    def __init__(self):
+    def __init__(self, j2_context: Context):
+        self.j2_context = j2_context
         self.counts = {
             'italic': 0,
             'bold': 0,
@@ -79,6 +87,7 @@ def __init__(self):
             'return-value': 0,
             'ruler': 0,
         }
+        self.plugin_fqcn, self.plugin_type = extract_plugin_data(j2_context)
 
 
 # In the following, we make heavy use of escaped whitespace ("\ ") being removed from the output.
@@ -180,6 +189,52 @@ def handle(self, parameters: t.List[str], context: t.Any) -> str:
         return f"\\ :literal:`{rst_escape(parameters[0], escape_ending_whitespace=True)}`\\ "
 
 
+class _OptionName(Command):
+    command = 'O'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['option-name'] += 1
+        if context.plugin_fqcn is None or context.plugin_type is None:
+            raise Exception('The markup O(...) cannot be used outside a plugin or role')
+        text = augment_plugin_name_type(parameters[0], context.plugin_fqcn, context.plugin_type)
+        return f"\\ :ansopt:`{rst_escape(text, escape_ending_whitespace=True)}`\\ "
+
+
+class _OptionValue(Command):
+    command = 'V'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['option-value'] += 1
+        return f"\\ :ansval:`{rst_escape(parameters[0], escape_ending_whitespace=True)}`\\ "
+
+
+class _EnvVariable(Command):
+    command = 'E'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['environment-var'] += 1
+        return f"\\ :envvar:`{rst_escape(parameters[0], escape_ending_whitespace=True)}`\\ "
+
+
+class _RetValue(Command):
+    command = 'RV'
+    parameter_count = 1
+    escaped_content = True
+
+    def handle(self, parameters: t.List[str], context: t.Any) -> str:
+        context.counts['return-value'] += 1
+        if context.plugin_fqcn is None or context.plugin_type is None:
+            raise Exception('The markup RV(...) cannot be used outside a plugin or role')
+        text = augment_plugin_name_type(parameters[0], context.plugin_fqcn, context.plugin_type)
+        return f"\\ :ansretval:`{rst_escape(text, escape_ending_whitespace=True)}`\\ "
+
+
 class _HorizontalLine(Command):
     command = 'HORIZONTALLINE'
     parameter_count = 0
@@ -199,16 +254,21 @@ def handle(self, parameters: t.List[str], context: t.Any) -> str:
     _Link(),
     _Ref(),
     _Const(),
+    _OptionName(),
+    _OptionValue(),
+    _EnvVariable(),
+    _RetValue(),
     _HorizontalLine(),
 ])
 
 
-def rst_ify(text: str) -> str:
+@pass_context
+def rst_ify(context: Context, text: str) -> str:
     ''' convert symbols like I(this is in italics) to valid restructured text '''
     flog = mlog.fields(func='rst_ify')
     flog.fields(text=text).debug('Enter')
 
-    our_context = _Context()
+    our_context = _Context(context)
 
     try:
         text = convert_text(text, _COMMAND_SET, rst_escape, our_context)