302 lines
8.6 KiB
Python
302 lines
8.6 KiB
Python
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# gen-dxd.py - Generate Doxygen Directives
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#
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# This code is in the Public Domain (or CC0 licensed, at your option.)
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# Unless required by applicable law or agreed to in writing, this
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# software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, either express or implied.
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#
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import sys
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import os
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import re
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# Script configuration
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header_file_path_prefix = "../components/"
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"""string: path prefix for header files.
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"""
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doxyfile_path = "Doxyfile"
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"""string: path to a file containing header files to processs.
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"""
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xml_directory_path = "xml"
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"""string: path to directory with XML files by Doxygen.
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"""
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inc_directory_path = "_build/inc"
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"""string: path prefix for header files.
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"""
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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 get_doxyfile_input():
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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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print "Doxyfile '%s' does not exist!" % doxyfile_path
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sys.exit()
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print "Getting Doxyfile's INPUT"
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input_file = open(doxyfile_path, "r")
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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(header_file_path_prefix + "(.*\.h)", line)
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header_file_path = m.group(1)
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doxyfile_INPUT += header_file_path + "\n"
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# proceed reading next line
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line = input_file.readline()
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input_file.close()
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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 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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def generate_directives(header_file_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 i in range(len(all_kinds)):
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kind = all_kinds[i][0]
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rst_output += get_directives(tree, kind)
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return rst_output
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def generate_api_inc_files():
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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 Doxyfile.
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"""
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if not os.path.isdir(xml_directory_path):
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print "Directory %s does not exist!" % xml_directory_path
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sys.exit()
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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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list_to_generate = get_doxyfile_input()
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print "Generating 'api_name.inc' files with Doxygen directives"
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for header_file_path in list_to_generate.splitlines():
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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)
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inc_file = open(inc_file_path, "w")
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inc_file.write(rst_output)
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inc_file.close()
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if __name__ == "__main__":
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"""The main script that generates
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Doxygen directives.
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"""
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# Process command line arguments, if any
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if len(sys.argv) > 1:
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if not os.path.isdir(xml_directory_path):
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print "Directory %s does not exist!" % xml_directory_path
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sys.exit()
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header_file_path = sys.argv[1]
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api_name = get_api_name(header_file_path)
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if api_name:
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rst_output = generate_directives(header_file_path)
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print "Doxygen directives for '%s'" % header_file_path
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print
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print rst_output
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else:
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print "Options to execute 'gen-dxd.py' application:"
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print "1: $ python gen-dxd.py"
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print " Generate API 'header_file.inc' files for headers defined in '%s'" % doxyfile_path
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print "2: $ python gen-dxd.py header_file_path"
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print " Print out Doxygen directives for a single header file"
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print " example: $ python gen-dxd.py mdns/include/mdns.h"
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print " NOTE: Run Doxygen first to get XML files for the header file"
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sys.exit()
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# No command line arguments given
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generate_api_inc_files()
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