import os
import subprocess
import re
import_library_name_prefix = r'tcbn07_bwph240l11p57pd_base_lvt'
library_name_prefix = "H3STC6TP57G11LBA01"
def apply_sed_commands(file_path, cmds):
for cmd in cmds:
subprocess.run(['sed', '-i', cmd, file_path], check=True)
def process_lib_file(file_path, library_name_prefix, import_library_name_prefix):
file_name = os.path.basename(file_path)
prefix = re.search(import_library_name_prefix, file_name)
prefix_str = prefix.group() if prefix else ""
match = re.search(
rf'{import_library_name_prefix}'
r'([a-zA-Z0-9]+_[a-zA-Z0-9]+_[a-zA-Z0-9]+)'
r'(?:_.*?)?\.lib',
file_name
)
suffix_str = ""
if match:
tmp = match.group(1)
tmp = re.sub(r'([0-9])p([0-9]+)v', r'\1P\2V', tmp)
tmp = re.sub(r'([0-9]+)c', r'\1C', tmp)
clean_suffix = re.sub(r'[^a-zA-Z0-9]', '', tmp).upper()
suffix_str = clean_suffix
original_suffix_pattern = re.escape(match.group(1))
sed_commands = [
'1,41d',
'/date/d',
'/comment/d',
'/revision/d',
r's/\(nom_process.*\);.*/\1;/',
r's/\(process.*\);.*/\1;/',
's/ZeroWireload/wl0/g',
'/slew_upper_threshold_pct_fall/,/leakage_power_unit/{//!d}',
r's/^\s*\(leakage_power_unit\)/\1/',
r's/^\s*\(default_cell_leakage_power\)/\1/',
'84,88d',
'/Design/d',
'/\/\* ---------/d',
'/--------- \*\//d',
f's/{re.escape(prefix_str)}/{re.escape(library_name_prefix)}/g',
f's/{original_suffix_pattern}/{clean_suffix}/g',
f's/{re.escape(library_name_prefix + clean_suffix)}/{re.escape(library_name_prefix)}_{clean_suffix}/g',
's/_cbest_CCbest_T//g',
's/_cworst_CCworst_T//g',
's/_typical//g',
's/VM40C/VN40C/g',
]
apply_sed_commands(file_path, sed_commands)
if __name__ == "__main__":
for lib_file in [f for f in os.listdir('.') if f.lower().endswith('.lib')]:
print(f"Start to update lib : {lib_file}")
process_lib_file(lib_file, library_name_prefix, import_library_name_prefix)
详细解释上述代码的含义，包括每个正则表达式的字符含义
文章探讨了在Python的re.sub函数中，是否需要在替换字符串前加上'r'前缀的问题。内容指出，在某些情况下，不加'r'可能导致字符串转义问题，而加上'r'可以确保原始字符串不被解释。通过示例代码解释了'r'的作用，强调了在处理特殊字符时使用'r'的必要性。
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