Sas 数据步骤中的文件输入，不带左修剪

我有一个可变长度、非常难看的报告文件，我正试图读入SAS。在读取文件记录时，我发现上的空格会从文件的左侧自动修剪。这使得将原始文件与“我的数据”步骤中的文件进行比较变得更加困难。如何在不进行自动修剪的情况下读取文件

读取文件的代码

Data Test;
  Infile myFile lrecl=200 firstobs=1 pad;
  length line $135;

  Input line $ 1 - 135;

Run;

示例文件，空格替换为uu以显示可见性

Num___Transaction__Comment________________________________
1_____Foo__________This_is_a_comment_about_a_transaction__
___________________foo._Line_breaks_are_fun.
2_____Bar__________Blagh_Blagh
3_____Bar__________Blagh_Blagh
4_____Foo__________Foo_transactions_have_more_comments_so
___________________they_are_harder_to_read.

line
-----
1_____Foo__________This_is_a_comment_about_a_transaction__
foo._Line_breaks_are_fun.
2_____Bar__________Blagh_Blagh
3_____Bar__________Blagh_Blagh
4_____Foo__________Foo_transactions_have_more_comments_so
they_are_harder_to_read.

输出数据集，空格替换为uu以显示可见性

Num___Transaction__Comment________________________________
1_____Foo__________This_is_a_comment_about_a_transaction__
___________________foo._Line_breaks_are_fun.
2_____Bar__________Blagh_Blagh
3_____Bar__________Blagh_Blagh
4_____Foo__________Foo_transactions_have_more_comments_so
___________________they_are_harder_to_read.

line
-----
1_____Foo__________This_is_a_comment_about_a_transaction__
foo._Line_breaks_are_fun.
2_____Bar__________Blagh_Blagh
3_____Bar__________Blagh_Blagh
4_____Foo__________Foo_transactions_have_more_comments_so
they_are_harder_to_read.

---

您想使用$CHARn.informat来保留前导空格，因此：

Data Test;
  Infile myFile lrecl=200 firstobs=1 pad;
  length line $135;

  Input line $char135.;

Run;