用Python写一个统计Verilog代码行数的脚本,首先打开指定的文件并读取全部内容。然后使用正则表达式去除注释,并按行分割并去除空白字符。接下来,它统计不在模块定义、包定义、函数定义、任务定义、generate块等特殊语句内的代码行数。然后,它查找每个模块实例化语句,并递归计算每个模块的行数,将其加入总行数中。最后,它查找每个 include 语句,并递归计算每个 included 文件的行数,将其加入总行数中。最终返回总行数。也同时输出各个子模块例化名及行数,include文件的对应的代码行数
时间: 2024-02-06 14:09:38 浏览: 98
以下是一个可能的实现:
```python
import re
def count_verilog_code(file_path):
# 打开文件并读取全部内容
with open(file_path, 'r') as f:
content = f.read()
# 去除注释
content = re.sub(r'/\*[\s\S]*?\*/', '', content)
content = re.sub(r'//.*', '', content)
# 按行分割并去除空白字符
lines = [line.strip() for line in content.split('\n')]
# 统计代码行数
total_lines = 0
in_special_block = False
module_instances = {}
included_files = set()
for line in lines:
# 处理特殊语句
if re.match(r'\s*(module|package|function|task|generate)\b', line):
in_special_block = True
elif re.match(r'\s*(endmodule|endpackage|endfunction|endtask|endgenerate)\b', line):
in_special_block = False
# 统计代码行数
if not in_special_block and line != '':
total_lines += 1
# 处理模块实例化语句
if re.match(r'\s*\w+\s+\w+\s*\(', line):
match = re.search(r'\s*(\w+)\s+\w+\s*\(', line)
if match:
module_name = match.group(1)
if module_name not in module_instances:
module_instances[module_name] = 0
module_instances[module_name] += count_verilog_code(module_name + '.v')
# 处理 include 语句
if re.match(r'\s*`include\s+"(.+)"', line):
match = re.search(r'\s*`include\s+"(.+)"', line)
if match:
included_file = match.group(1)
if included_file not in included_files:
included_files.add(included_file)
total_lines += count_verilog_code(included_file)
# 输出子模块例化名及行数,以及 included 文件的对应的代码行数
print('Module instances:')
for module_name, count in module_instances.items():
print('- {}: {}'.format(module_name, count))
print('Included files:')
for included_file in included_files:
print('- {}: {}'.format(included_file, count_verilog_code(included_file)))
return total_lines
```
使用示例:
```python
count = count_verilog_code('top.v')
print('Total lines of Verilog code:', count)
```
其中,`top.v` 是顶层模块的文件名。注意,上述实现并未考虑循环 include 的情况,如果你需要处理这种情况,可以添加相应的逻辑。
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