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I have to change strings:

  • fetchrandomData to fetchReportingData
  • FETCH_RANDOM_DATA to FETCH_REPORTING_DATA

I can change ca_z and CA_Z to ca_t and CA_T respectively with command:

%s/\v([Cc])([Az])(_)?([Tt])/\1\2\3\4/gci.

For a string with 3 or more characters this method seems unfeasible, let alone for string FETCH_RANDOM_DATA of length 17 characters.

What is more a feasible way to do something like this in vim?

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  • What does this have to do with sed, exactly? (Although I would take a look at tpope’s Abolish plugin, it handles this nicely.)
    – D. Ben Knoble ♦
    Commented Dec 16, 2018 at 19:34
  • Agreed @Rich , the second is a change of words and has nothing to with case. The first doesn’t change the word but does modify the case.
    – D. Ben Knoble ♦
    Commented Dec 16, 2018 at 19:55
  • As well as remembering the case you also want to remember the presence or absence of underscores?
    – Rich
    Commented Dec 16, 2018 at 20:10
  • Is the r in random in your first example still lowercase deliberately?
    – Rich
    Commented Dec 16, 2018 at 20:13
  • Yes. Using command s/\vfetch(_)?random(\1)?/fetch\1Reporting\1/gci, I end up with fetch_Reporting_DATA for FETCH_RANDOM_DATA. The first example fetchrandomData is replaced successfully with fetchReportingData
    – HarshvardhanSharma
    Commented Dec 16, 2018 at 20:22

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