scripts/qapi: Remove texinfo generation support

We no longer use the generated texinfo format documentation,
so delete the code that generates it, and the test case for
the generation.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-17-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

2 files changed, 0 insertions, 309 deletions

diff --git a/scripts/qapi/doc.py b/scripts/qapi/doc.py
deleted file mode 100644
index 7764de1e4b..0000000000
--- a/scripts/qapi/doc.py
+++ /dev/null
@@ -1,302 +0,0 @@
-# QAPI texi generator
-#
-# This work is licensed under the terms of the GNU LGPL, version 2+.
-# See the COPYING file in the top-level directory.
-"""This script produces the documentation of a qapi schema in texinfo format"""
-
-import re
-from qapi.gen import QAPIGenDoc, QAPISchemaVisitor
-
-
-MSG_FMT = """
-@deftypefn {type} {{}} {name}
-
-{body}{members}{features}{sections}
-@end deftypefn
-
-""".format
-
-TYPE_FMT = """
-@deftp {{{type}}} {name}
-
-{body}{members}{features}{sections}
-@end deftp
-
-""".format
-
-EXAMPLE_FMT = """@example
-{code}
-@end example
-""".format
-
-
-def subst_strong(doc):
-    """Replaces *foo* by @strong{foo}"""
-    return re.sub(r'\*([^*\n]+)\*', r'@strong{\1}', doc)
-
-
-def subst_emph(doc):
-    """Replaces _foo_ by @emph{foo}"""
-    return re.sub(r'\b_([^_\n]+)_\b', r'@emph{\1}', doc)
-
-
-def subst_vars(doc):
-    """Replaces @var by @code{var}"""
-    return re.sub(r'@([\w-]+)', r'@code{\1}', doc)
-
-
-def subst_braces(doc):
-    """Replaces {} with @{ @}"""
-    return doc.replace('{', '@{').replace('}', '@}')
-
-
-def texi_example(doc):
-    """Format @example"""
-    # TODO: Neglects to escape @ characters.
-    # We should probably escape them in subst_braces(), and rename the
-    # function to subst_special() or subs_texi_special().  If we do that, we
-    # need to delay it until after subst_vars() in texi_format().
-    doc = subst_braces(doc).strip('\n')
-    return EXAMPLE_FMT(code=doc)
-
-
-def texi_format(doc):
-    """
-    Format documentation
-
-    Lines starting with:
-    - |: generates an @example
-    - =: generates @section
-    - ==: generates @subsection
-    - 1. or 1): generates an @enumerate @item
-    - */-: generates an @itemize list
-    """
-    ret = ''
-    doc = subst_braces(doc)
-    doc = subst_vars(doc)
-    doc = subst_emph(doc)
-    doc = subst_strong(doc)
-    inlist = ''
-    lastempty = False
-    for line in doc.split('\n'):
-        line = line.strip()
-        empty = line == ''
-
-        # FIXME: Doing this in a single if / elif chain is
-        # problematic.  For instance, a line without markup terminates
-        # a list if it follows a blank line (reaches the final elif),
-        # but a line with some *other* markup, such as a = title
-        # doesn't.
-        #
-        # Make sure to update section "Documentation markup" in
-        # docs/devel/qapi-code-gen.txt when fixing this.
-        if line.startswith('| '):
-            line = EXAMPLE_FMT(code=line[2:])
-        elif line.startswith('= '):
-            line = '@section ' + line[2:]
-        elif line.startswith('== '):
-            line = '@subsection ' + line[3:]
-        elif re.match(r'^([0-9]*\.) ', line):
-            if not inlist:
-                ret += '@enumerate\n'
-                inlist = 'enumerate'
-            ret += '@item\n'
-            line = line[line.find(' ')+1:]
-        elif re.match(r'^[*-] ', line):
-            if not inlist:
-                ret += '@itemize %s\n' % {'*': '@bullet',
-                                          '-': '@minus'}[line[0]]
-                inlist = 'itemize'
-            ret += '@item\n'
-            line = line[2:]
-        elif lastempty and inlist:
-            ret += '@end %s\n\n' % inlist
-            inlist = ''
-
-        lastempty = empty
-        ret += line + '\n'
-
-    if inlist:
-        ret += '@end %s\n\n' % inlist
-    return ret
-
-
-def texi_body(doc):
-    """Format the main documentation body"""
-    return texi_format(doc.body.text)
-
-
-def texi_if(ifcond, prefix='\n', suffix='\n'):
-    """Format the #if condition"""
-    if not ifcond:
-        return ''
-    return '%s@b{If:} @code{%s}%s' % (prefix, ', '.join(ifcond), suffix)
-
-
-def texi_enum_value(value, desc, suffix):
-    """Format a table of members item for an enumeration value"""
-    return '@item @code{%s}\n%s%s' % (
-        value.name, desc, texi_if(value.ifcond, prefix='@*'))
-
-
-def texi_member(member, desc, suffix):
-    """Format a table of members item for an object type member"""
-    typ = member.type.doc_type()
-    membertype = ': ' + typ if typ else ''
-    return '@item @code{%s%s}%s%s\n%s%s' % (
-        member.name, membertype,
-        ' (optional)' if member.optional else '',
-        suffix, desc, texi_if(member.ifcond, prefix='@*'))
-
-
-def texi_members(doc, what, base=None, variants=None,
-                 member_func=texi_member):
-    """Format the table of members"""
-    items = ''
-    for section in doc.args.values():
-        # TODO Drop fallbacks when undocumented members are outlawed
-        if section.text:
-            desc = texi_format(section.text)
-        elif (variants and variants.tag_member == section.member
-              and not section.member.type.doc_type()):
-            values = section.member.type.member_names()
-            members_text = ', '.join(['@t{"%s"}' % v for v in values])
-            desc = 'One of ' + members_text + '\n'
-        else:
-            desc = 'Not documented\n'
-        items += member_func(section.member, desc, suffix='')
-    if base:
-        items += '@item The members of @code{%s}\n' % base.doc_type()
-    if variants:
-        for v in variants.variants:
-            when = ' when @code{%s} is @t{"%s"}%s' % (
-                variants.tag_member.name, v.name, texi_if(v.ifcond, " (", ")"))
-            if v.type.is_implicit():
-                assert not v.type.base and not v.type.variants
-                for m in v.type.local_members:
-                    items += member_func(m, desc='', suffix=when)
-            else:
-                items += '@item The members of @code{%s}%s\n' % (
-                    v.type.doc_type(), when)
-    if not items:
-        return ''
-    return '\n@b{%s:}\n@table @asis\n%s@end table\n' % (what, items)
-
-
-def texi_arguments(doc, boxed_arg_type):
-    if boxed_arg_type:
-        assert not doc.args
-        return ('\n@b{Arguments:} the members of @code{%s}\n'
-                % boxed_arg_type.name)
-    return texi_members(doc, 'Arguments')
-
-
-def texi_features(doc):
-    """Format the table of features"""
-    items = ''
-    for section in doc.features.values():
-        desc = texi_format(section.text)
-        items += '@item @code{%s}\n%s' % (section.name, desc)
-    if not items:
-        return ''
-    return '\n@b{Features:}\n@table @asis\n%s@end table\n' % (items)
-
-
-def texi_sections(doc, ifcond):
-    """Format additional sections following arguments"""
-    body = ''
-    for section in doc.sections:
-        if section.name:
-            # prefer @b over @strong, so txt doesn't translate it to *Foo:*
-            body += '\n@b{%s:}\n' % section.name
-        if section.name and section.name.startswith('Example'):
-            body += texi_example(section.text)
-        else:
-            body += texi_format(section.text)
-    body += texi_if(ifcond, suffix='')
-    return body
-
-
-def texi_type(typ, doc, ifcond, members):
-    return TYPE_FMT(type=typ,
-                    name=doc.symbol,
-                    body=texi_body(doc),
-                    members=members,
-                    features=texi_features(doc),
-                    sections=texi_sections(doc, ifcond))
-
-
-def texi_msg(typ, doc, ifcond, members):
-    return MSG_FMT(type=typ,
-                   name=doc.symbol,
-                   body=texi_body(doc),
-                   members=members,
-                   features=texi_features(doc),
-                   sections=texi_sections(doc, ifcond))
-
-
-class QAPISchemaGenDocVisitor(QAPISchemaVisitor):
-    def __init__(self, prefix):
-        self._prefix = prefix
-        self._gen = QAPIGenDoc(self._prefix + 'qapi-doc.texi')
-        self.cur_doc = None
-
-    def write(self, output_dir):
-        self._gen.write(output_dir)
-
-    def visit_enum_type(self, name, info, ifcond, features, members, prefix):
-        doc = self.cur_doc
-        self._gen.add(texi_type('Enum', doc, ifcond,
-                                texi_members(doc, 'Values',
-                                             member_func=texi_enum_value)))
-
-    def visit_object_type(self, name, info, ifcond, features,
-                          base, members, variants):
-        doc = self.cur_doc
-        if base and base.is_implicit():
-            base = None
-        self._gen.add(texi_type('Object', doc, ifcond,
-                                texi_members(doc, 'Members', base, variants)))
-
-    def visit_alternate_type(self, name, info, ifcond, features, variants):
-        doc = self.cur_doc
-        self._gen.add(texi_type('Alternate', doc, ifcond,
-                                texi_members(doc, 'Members')))
-
-    def visit_command(self, name, info, ifcond, features,
-                      arg_type, ret_type, gen, success_response, boxed,
-                      allow_oob, allow_preconfig):
-        doc = self.cur_doc
-        self._gen.add(texi_msg('Command', doc, ifcond,
-                               texi_arguments(doc,
-                                              arg_type if boxed else None)))
-
-    def visit_event(self, name, info, ifcond, features, arg_type, boxed):
-        doc = self.cur_doc
-        self._gen.add(texi_msg('Event', doc, ifcond,
-                               texi_arguments(doc,
-                                              arg_type if boxed else None)))
-
-    def symbol(self, doc, entity):
-        if self._gen._body:
-            self._gen.add('\n')
-        self.cur_doc = doc
-        entity.visit(self)
-        self.cur_doc = None
-
-    def freeform(self, doc):
-        assert not doc.args
-        if self._gen._body:
-            self._gen.add('\n')
-        self._gen.add(texi_body(doc) + texi_sections(doc, None))
-
-
-def gen_doc(schema, output_dir, prefix):
-    vis = QAPISchemaGenDocVisitor(prefix)
-    vis.visit_begin(schema)
-    for doc in schema.docs:
-        if doc.symbol:
-            vis.symbol(doc, schema.lookup_entity(doc.symbol))
-        else:
-            vis.freeform(doc)
-    vis.write(output_dir)
diff --git a/scripts/qapi/gen.py b/scripts/qapi/gen.py
index bf5552a4e7..ca66c82b5b 100644
--- a/scripts/qapi/gen.py
+++ b/scripts/qapi/gen.py
@@ -178,13 +178,6 @@ def ifcontext(ifcond, *args):
         arg.end_if()
 
 
-class QAPIGenDoc(QAPIGen):
-
-    def _top(self):
-        return (super()._top()
-                + '@c AUTOMATICALLY GENERATED, DO NOT MODIFY\n\n')
-
-
 class QAPISchemaMonolithicCVisitor(QAPISchemaVisitor):
 
     def __init__(self, prefix, what, blurb, pydoc):