part of andOrTag()
part of andortag()
part of andortag()
andortag() has finished. Not tested yet.
fixed a bug
added a test case to andOrTag()
1) separate case 1 of andOrTag() into a helper andOrTagCase1Helper(). 2) Fixed several bugs in the helper
added some log msg
minor
fixed a bug in andOrTagCase1Helper()
added a test case of andOrTagCase1Helper()
resolve conflicts