我的模式中有两个命名组:myFlag和id,我想在id组之前立即添加另一个myFlag。
这是我的当前代码:
# i'm using Python 3.4.2
import re
import os
contents = b'''
xdlg::xdlg(x_app* pApp, CWnd* pParent)
: customized_dlg((UINT)0, pParent, pApp)
, m_pReaderApp(pApp)
, m_info(pApp)
{
}
'''
pattern = rb'(?P<myFlag>[a-zA-Z0-9_]+)::(?P=myFlag).+:.+(?P<id>\(UINT\)0 *,)'
res = re.search(pattern, contents, re.DOTALL)
if None != res:
print(res.groups()) # the output is (b'xdlg', b'(UINT)0,')
# 'replPattern' becomes b'(?P<myFlag>[a-zA-Z0-9_]+)::(?P=myFlag).+:.+((?P=myFlag)\\(UINT\\)0 *,)'
replPattern = pattern.replace(b'?P<id>', b'(?P=myFlag)', re.DOTALL)
print(replPattern)
contents = re.sub(pattern, replPattern, contents)
print(contents)
预期结果应该是:
xdlg::xdlg(x_app* pApp, CWnd* pParent)
: customized_dlg(xdlg(UINT)0, pParent, pApp)
, m_pReaderApp(pApp)
, m_info(pApp)
{
}
但现在的结果与原来的相同:
xdlg::xdlg(x_app* pApp, CWnd* pParent)
: customized_dlg((UINT)0, pParent, pApp)
, m_pReaderApp(pApp)
, m_info(pApp)
{
}