Sistemas Libsur's questions

我想找到一个正则表达式或 perl 单行代码来检测两行连续的行，这些行包含相同的单词且顺序相同，但前导空格、尾随空格和单词之间的空格数量可能因行而异。正则表达式必须排除那些不匹配的行。

我使用这个正则表达式来检测相同的连续行，
^\s*(.*\S)(\s\n*\1)+$
当一行与另一行之间的空格量不同时，它会失败。

我有这个示例文本

Mary has a little lamb. The live near the mountain.
Mary has a little lamb. The live near the mountain.

vrfgrgru hfiughf iujhfuihgifughuir nuhuvhfug

Mary has  a little lamb. The live near the mountain.
  Mary has a little lamb. The live near the mountain.

 Mary has a little lamb.  The live near the mountain.
Mary has a little lamb. The live near the mountain.

fghurhg bojghirejyohi ndhguhyituhgi
gbshbsiughsf bnighriugh hurhgiurhgriu

 Elvis was the greatest singer of all time. He has 18 number one in billboard charts.
Elvis was the greatest singer  of all time. He has 18 number one in billboard charts.

sgfuhgdugusd vfjsng orjgoergo ejfio dsmnjn
fbdhsbfgdbhhbfhdsfdf

Mary has a little lamb. The live near the mountain.
 Mary has a little lamb. The live near the mountain.

gsete gerttrb oijoijoijoijoijoiojo gogoerijoi

jhoiyrei  erogjrijgtrio noifdo mkooi 

This has been the coldest winter in the last 20 years.
 This has  been the coldest winter in the  last 20 years.

无论行中有多少个空格，正则表达式都应该显示包含相同信息的连续行。

没有三个连续的并且匹配的行之间没有空行。

我有这个文件：

table_01 (id, field01, field02, field03, field04)
record_01
record_02
record_03
table_02 (id, field01, field02, field03)
record_01
table_03 (id, field01, field02, field03, field04)
record_01
record_02
table_04 (id, field01, field02, field03, field04, field04)
record_01
table_05 (id, field01, field02, field03, field04)
record_01
record_02
record_03
record_04

我想要一个脚本来显示出现单词“ table”的行，并显示它们之间的行数以及最后一次出现之后的行数。

所以输出将是：

table_01 (id, field01, field02, field03, field04)
3
table_02 (id, field01, field02, field03)
1
table_03 (id, field01, field02, field03, field04)
2
table_04 (id, field01, field02, field03, field04, field04)
1
table_05 (id, field01, field02, field03, field04)
4

到目前为止我有这个脚本：

awk '$0 ~ /table/ {if (n) print NR-1-n; n=NR}' file

其输出是：

3
1
2
1

但该脚本不显示出现“ table”的行，也不显示最后一次出现之后的行。我该如何修改它以显示缺少的内容？