正则表达式使用g_regex_match_simple匹配logcat简短格式 [英] Regexp to match logcat brief format with g_regex_match_simple

问题描述

我正在尝试为各种文本格式的logcat日志编写wireshark解剖器.

I'm trying to write a wireshark dissector for logcat logs in various text formats.

要做到这一点，我需要检测我正在读取哪种类型的logcat，然后提取出可观的部分.我以为使用正则表达式可以解决问题，但显然没有.

To do it I need to detect which type of logcat I'm reading, and then get the respectable parts extracted. I thought that using a regular expression would do the trick, but apparently it doesn't.

这是我的正则表达式:

[IVDWE]/.*\(\s*[0-9]*\):\s.*

由于它应该与Perl兼容，所以我在命令行中用Perl对其进行了尝试，它似乎可以工作.然而，当加载一条线时，例如.

As it should be Perl compatibile I tried it with Perl from command line and it seems to work. Yet when loading a line, ex.

I/bdAddrLoader(  184): option : f=/persist/bluetooth/.bdaddr

使用 g_regex_match_simple 时，表达式从打开大括号时不匹配.我尝试使用1-4 \ 对其进行转义，但这没有用.

with g_regex_match_simple, the expression does not match from opening round brace. I tried escaping it with 1-4 \, but it didn't work.

原来我尝试了 \ ，'\`和 \\\\ 版本，但是以某种方式错过了 \\ ...

Turns out that I've tried \,'\`,and \\\\ versions, but missed somehow \\...

推荐答案

它对我来说有两个反斜杠:

It works for me with two backslashes:

#include <glib.h>

int
main(int argc, char *argv[]) {
  gboolean res = g_regex_match_simple ("[IVDWE]/.*\\(\\s*[0-9]*\\):\\s.*",
                                       "I/bdAddrLoader(  184): option : f=/persist/bluetooth/.bdaddr",
                                       0, 0);
  g_message ("%s", res ? "true" : "false");

  return 0;
}

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