The sed command doesn't get the indentation right, though, as the article says i... | Hacker News

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bewuethr on May 12, 2018 | parent | context | favorite | on: Batch editing files with ed

The sed command doesn't get the indentation right, though, as the article says it could be indented by two or four spaces.

textmode on May 12, 2018 [–]

   1.sed:
   s/- baz/- elephant/;
   /^  - elephant/{h;G;}
   /^    - elephant/{h;G;}
   s/- elephant/- baz/;

   sed -f 1.sed foo|sed -a wfoo

or

   1.sed:
   /^  - baz/a\
     - elephant
   

   /^    - baz/a\
       - elephant
   

   sed -f 1.sed foo|sed -a wfoo

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