2b270bccbf
Regression in fbb54184ef, the dictionary
passed to generate_doxygen function was still the project_description
structure.
292 lines
9 KiB
Python
292 lines
9 KiB
Python
# Extension to generate Doxygen XML include files, with IDF config & soc macros included
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from __future__ import print_function
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from __future__ import unicode_literals
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from io import open
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import os
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import os.path
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import re
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import subprocess
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from .util import copy_if_modified
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ALL_KINDS = [
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("function", "Functions"),
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("union", "Unions"),
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("struct", "Structures"),
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("define", "Macros"),
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("typedef", "Type Definitions"),
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("enum", "Enumerations")
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]
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"""list of items that will be generated for a single API file
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"""
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def setup(app):
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# The idf_build_system extension will emit this event once it has generated documentation macro definitions
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app.connect('idf-defines-generated', generate_doxygen)
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return {'parallel_read_safe': True, 'parallel_write_safe': True, 'version': '0.2'}
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def generate_doxygen(app, defines):
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build_dir = os.path.dirname(app.doctreedir.rstrip(os.sep))
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# Call Doxygen to get XML files from the header files
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print("Calling Doxygen to generate latest XML files")
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doxy_env = os.environ
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doxy_env.update({
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"ENV_DOXYGEN_DEFINES": " ".join('{}={}'.format(key, value) for key, value in defines.items()),
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"IDF_PATH": app.config.idf_path,
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"IDF_TARGET": app.config.idf_target,
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})
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doxyfile = os.path.join(app.config.docs_root, "Doxyfile")
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print("Running doxygen with doxyfile {}".format(doxyfile))
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# note: run Doxygen in the build directory, so the xml & xml_in files end up in there
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subprocess.check_call(["doxygen", doxyfile], env=doxy_env, cwd=build_dir)
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# Doxygen has generated XML files in 'xml' directory.
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# Copy them to 'xml_in', only touching the files which have changed.
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copy_if_modified(os.path.join(build_dir, 'xml/'), os.path.join(build_dir, 'xml_in/'))
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# Generate 'api_name.inc' files from the Doxygen XML files
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convert_api_xml_to_inc(app, doxyfile)
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def convert_api_xml_to_inc(app, doxyfile):
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""" Generate header_file.inc files
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with API reference made of doxygen directives
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for each header file
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specified in the 'INPUT' statement of the Doxyfile.
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"""
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build_dir = app.config.build_dir
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xml_directory_path = "{}/xml".format(build_dir)
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inc_directory_path = "{}/inc".format(build_dir)
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if not os.path.isdir(xml_directory_path):
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raise RuntimeError("Directory {} does not exist!".format(xml_directory_path))
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if not os.path.exists(inc_directory_path):
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os.makedirs(inc_directory_path)
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header_paths = get_doxyfile_input_paths(app, doxyfile)
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print("Generating 'api_name.inc' files with Doxygen directives")
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for header_file_path in header_paths:
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api_name = get_api_name(header_file_path)
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inc_file_path = inc_directory_path + "/" + api_name + ".inc"
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rst_output = generate_directives(header_file_path, xml_directory_path)
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previous_rst_output = ''
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if os.path.isfile(inc_file_path):
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with open(inc_file_path, "r", encoding='utf-8') as inc_file_old:
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previous_rst_output = inc_file_old.read()
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if previous_rst_output != rst_output:
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with open(inc_file_path, "w", encoding='utf-8') as inc_file:
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inc_file.write(rst_output)
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def get_doxyfile_input_paths(app, doxyfile_path):
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"""Get contents of Doxyfile's INPUT statement.
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Returns:
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Contents of Doxyfile's INPUT.
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"""
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if not os.path.isfile(doxyfile_path):
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raise RuntimeError("Doxyfile '{}' does not exist!".format(doxyfile_path))
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print("Getting Doxyfile's INPUT")
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with open(doxyfile_path, "r", encoding='utf-8') as input_file:
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line = input_file.readline()
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# read contents of Doxyfile until 'INPUT' statement
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while line:
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if line.find("INPUT") == 0:
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break
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line = input_file.readline()
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doxyfile_INPUT = []
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line = input_file.readline()
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# skip input_file contents until end of 'INPUT' statement
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while line:
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if line.isspace():
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# we have reached the end of 'INPUT' statement
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break
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# process only lines that are not comments
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if line.find("#") == -1:
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# extract header file path inside components folder
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m = re.search("components/(.*\.h)", line) # noqa: W605 - regular expression
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header_file_path = m.group(1)
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# Replace env variable used for multi target header
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header_file_path = header_file_path.replace("$(IDF_TARGET)", app.config.idf_target)
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doxyfile_INPUT.append(header_file_path)
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# proceed reading next line
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line = input_file.readline()
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return doxyfile_INPUT
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def get_api_name(header_file_path):
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"""Get name of API from header file path.
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Args:
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header_file_path: path to the header file.
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Returns:
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The name of API.
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"""
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api_name = ""
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regex = r".*/(.*)\.h"
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m = re.search(regex, header_file_path)
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if m:
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api_name = m.group(1)
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return api_name
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def generate_directives(header_file_path, xml_directory_path):
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"""Generate API reference with Doxygen directives for a header file.
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Args:
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header_file_path: a path to the header file with API.
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Returns:
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Doxygen directives for the header file.
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"""
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api_name = get_api_name(header_file_path)
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# in XLT file name each "_" in the api name is expanded by Doxygen to "__"
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xlt_api_name = api_name.replace("_", "__")
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xml_file_path = "%s/%s_8h.xml" % (xml_directory_path, xlt_api_name)
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rst_output = ""
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rst_output = ".. File automatically generated by 'gen-dxd.py'\n"
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rst_output += "\n"
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rst_output += get_rst_header("Header File")
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rst_output += "* :component_file:`" + header_file_path + "`\n"
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rst_output += "\n"
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try:
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import xml.etree.cElementTree as ET
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except ImportError:
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import xml.etree.ElementTree as ET
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tree = ET.ElementTree(file=xml_file_path)
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for kind, label in ALL_KINDS:
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rst_output += get_directives(tree, kind)
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return rst_output
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def get_rst_header(header_name):
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"""Get rst formatted code with a header.
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Args:
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header_name: name of header.
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Returns:
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Formatted rst code with the header.
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"""
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rst_output = ""
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rst_output += header_name + "\n"
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rst_output += "^" * len(header_name) + "\n"
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rst_output += "\n"
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return rst_output
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def select_unions(innerclass_list):
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"""Select unions from innerclass list.
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Args:
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innerclass_list: raw list with unions and structures
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extracted from Dogygen's xml file.
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Returns:
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Doxygen directives with unions selected from the list.
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"""
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rst_output = ""
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for line in innerclass_list.splitlines():
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# union is denoted by "union" at the beginning of line
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if line.find("union") == 0:
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union_id, union_name = re.split(r"\t+", line)
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rst_output += ".. doxygenunion:: "
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rst_output += union_name
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rst_output += "\n"
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return rst_output
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def select_structs(innerclass_list):
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"""Select structures from innerclass list.
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Args:
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innerclass_list: raw list with unions and structures
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extracted from Dogygen's xml file.
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Returns:
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Doxygen directives with structures selected from the list.
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Note: some structures are excluded as described on code below.
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"""
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rst_output = ""
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for line in innerclass_list.splitlines():
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# structure is denoted by "struct" at the beginning of line
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if line.find("struct") == 0:
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# skip structures that are part of union
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# they are documented by 'doxygenunion' directive
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if line.find("::") > 0:
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continue
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struct_id, struct_name = re.split(r"\t+", line)
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rst_output += ".. doxygenstruct:: "
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rst_output += struct_name
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rst_output += "\n"
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rst_output += " :members:\n"
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rst_output += "\n"
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return rst_output
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def get_directives(tree, kind):
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"""Get directives for specific 'kind'.
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Args:
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tree: the ElementTree 'tree' of XML by Doxygen
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kind: name of API "kind" to be generated
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Returns:
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Doxygen directives for selected 'kind'.
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Note: the header with "kind" name is included.
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"""
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rst_output = ""
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if kind in ["union", "struct"]:
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innerclass_list = ""
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for elem in tree.iterfind('compounddef/innerclass'):
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innerclass_list += elem.attrib["refid"] + "\t" + elem.text + "\n"
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if kind == "union":
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rst_output += select_unions(innerclass_list)
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else:
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rst_output += select_structs(innerclass_list)
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else:
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for elem in tree.iterfind(
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'compounddef/sectiondef/memberdef[@kind="%s"]' % kind):
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name = elem.find('name')
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rst_output += ".. doxygen%s:: " % kind
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rst_output += name.text + "\n"
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if rst_output:
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all_kinds_dict = dict(ALL_KINDS)
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rst_output = get_rst_header(all_kinds_dict[kind]) + rst_output + "\n"
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return rst_output
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