python - 模式匹配并用 if else 循环替换字符串

Question

我有一个包含多行以“1ECLI H--- 12.345 .....”开头的文件。我想删除 I 和 H 之间的空格，并在迭代 H 模式时添加 R/S/T。例如。 H810 如果连续三行重复，则应添加字母 R、S(第二次迭代)、T(第三次迭代)。所以它会是H810R。任何帮助将不胜感激。
文字如下所示

1ECLI  H813   98   7.529   8.326   9.267
1ECLI  H813   99   7.427   8.470   9.251
1ECLI  C814  100   7.621   8.513   9.263
1ECLI  H814  101   7.607   8.617   9.289
1ECLI  H814  102   7.633   8.489   9.156
1ECLI  H814  103   7.721   8.509   9.305
1ECLI   C74  104   8.164   8.733  10.740
1ECLI  H74R  105   8.247   8.690  10.799

根据变化

1ECLI H813R   98   7.529   8.326   9.267
1ECLI H813S   99   7.427   8.470   9.251
1ECLI  C814  100   7.621   8.513   9.263
1ECLI H814R  101   7.607   8.617   9.289
1ECLI H814s  102   7.633   8.489   9.156
1ECLI H814T  103   7.721   8.509   9.305
1ECLI   C74  104   8.164   8.733  10.740
1ECLI  H74R  105   8.247   8.690  10.799

谢谢。

Answer 1

如果您的 Input_file 与显示的示例相同，那么您能否尝试按照 awk 进行操作，如果这对您有帮助，请告诉我。

awk '
BEGIN{
  val[1]="R";
  val[2]="S";
  val[3]="T"
}
$2 !~ /^H[0-9]+/ || i==3{
  i=""
}
$2 ~ /^H[0-9]+$/ && /^1ECLI/{
  $2=$2val[++i]
}
1
'   Input_file  > temp_file  && mv  temp_file   Input_file

也为答案添加解释如下。

awk '
BEGIN{                        ##Starting BEGIN section of awk here.
  val[1]="R";                 ##creating an array named val whose index is 1 and value is string R.
  val[2]="S";                 ##creating array val 2nd element here whose value is S.
  val[3]="T"                  ##creating array val 3rd element here whose value is T.
}
$2 !~ /^H[0-9]+/ || i==3{     ##Checking condition if 2nd field does not start from H and digits after that OR variable i value is equal to 3.
  i=""                        ##Then nullifying the value of variable i here.
}
$2 ~ /^H[0-9]+$/ && /^1ECLI/{ ##Checking here if 2nd field value is starts from H till all digits till end AND line starts from 1ECLI string then do following.
  $2=$2val[++i]               ##re-creating value of 2nd field by adding value of array val whose index is increasing value of variable i.
}
1                             ##Mentioning 1 here, which means it will print the current line.
' Input_file   > temp_file  && mv  temp_file   Input_file                 ##Mentioning Input_file name here.