Question

因此，基本上，我正在运行一个生成一些文件的python脚本。问题是：生成每个.cpp和.hpp文件都没有问题，而脚本引发了一个异常，生成了一个异常的CMakeLists.txt：

Traceback (most recent call last):
File "enum_generator.py", line 115, in <module>
  generate_cmakelists(result)
File "enum_generator.py", line 98, in generate_cmakelists
  'templates/cmakelists_enums_template.jinja2', result=result)
File "enum_generator.py", line 43, in render_to_file
  jinja_template = Template(template_file)
File "C:\Python27\lib\site-packages\jinja2\environment.py", line 945, in __new__
  return env.from_string(source, template_class=cls)
File "C:\Python27\lib\site-packages\jinja2\environment.py", line 880, in from_string
  return cls.from_code(self, self.compile(source), globals, None)
File "C:\Python27\lib\site-packages\jinja2\environment.py", line 591, in compile
  self.handle_exception(exc_info, source_hint=source_hint)
File "C:\Python27\lib\site-packages\jinja2\environment.py", line 780, in handle_exception
  reraise(exc_type, exc_value, tb)
File "<unknown>", line 8, in template
jinja2.exceptions.TemplateSyntaxError: unexpected '%'

我尝试了相同的代码，带有用于.cpp和.hpp文件的模板，并且工作正常。接下来，您将看到CMake_template和python脚本

cmake_minimum_required(VERSION 3.0.0)
project(ART_Plugin_Enums)

set(CMAKE_BINARY_DIR ${CMAKE_SOURCE_DIR}/bin)
set(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR})

add_library(ART_Plugin_Enums ${LIBRARY_TYPE}
                        {% for category in result.keys() -%}
                    enums/{{category}}Enum.hpp

                    inc/{{category}}EnumPlugin.hpp
                    inc/{{category}}EnumPlugin_module.hpp

                    src/{{category}}EnumPlugin.cpp
                    src/{{category}}numPlugin_module.cpp
                    {%endfor%})

这是脚本：

def render_to_file(target_file_path, template_name, *args, **kwargs):
    with open(target_file_path, 'w+') as f:
        template_file = open(os.path.join(SCRIPT_LOCATION,
                                          template_name)).read()
        jinja_template = Template(template_file)
        print("-- Generating {}".format(target_file_path))
        f.write(jinja_template.render(*args, **kwargs))


def generate_cmakelists(result):
    target_file_path = os.path.join(SCRIPT_LOCATION, '..', "CmakeLists.txt")
    return render_to_file(
        target_file_path,
        'templates/cmakelists_enums_template.jinja2', result=result)

generate_cmakelists(result)

我很困惑，因为我不明白为什么Jinja无法识别for中的％。有任何线索吗？

Answer 1

实际上，我认为我打开的文件太多，并且搞乱了与正在渲染的文件的编辑。很抱歉，您会浪费时间，代码实际上可以正常工作。

意外的'％'呈现Jinja2模板

1 个答案: