how to replace the word and convert to pascal case in vs code snippet

Question

I have a snippet that is not working. this snippet should convert the file name into pascal case then remove the Impl word after implements

"body": [
    "class ${TM_FILENAME_BASE/(.*)/${1:/pascalcase}/g} implements ${${TM_FILENAME_BASE/(.*)/${1:/pascalcase}/g}/(Impl)//} {",
    "final ${2:RemoteDataSource} remoteDataSource;",
    "${TM_FILENAME_BASE/(.*)/${1:/pascalcase}/g}({required this.remoteDataSource});",
    "}"],

Expected Result

class HomeRepositoryImpl implements HomeRepository {
  final HomeDataSource remoteDataSource;
  HomeRepositoryImpl({required this.remoteDataSource});
}

Actual Result

class HomeRepositoryImpl implements ${HomeRepositoryImpl/(Impl)//} {
    final RemoteDataSource remoteDataSource;
    HomeRepositoryImpl({required this.remoteDataSource});
   }

${${TM_FILENAME_BASE/(.*)/${1:/pascalcase}/g}/(Impl)//} - if you were trying to nest a transform inside another transform here - that cannot be done. — Mark
– Mark, Commented Feb 4, 2023 at 18:55
What is the filename you are starting from? That would be helpful, so everyone starts from the same information. — Mark
– Mark, Commented Feb 4, 2023 at 19:57
See my comment below the answer - small change to the regex makes it work. — Mark
– Mark, Commented Feb 4, 2023 at 20:25

rioV8 · Accepted Answer · 2023-02-08 14:04:18Z

3

Capture the possible impl part in the matched regex but don't use it in the replacement and do it case insensitive

    "body": [
      "class ${TM_FILENAME_BASE/(.*)/${1:/pascalcase}/} implements ${TM_FILENAME_BASE/(.*?)(impl)?$/${1:/pascalcase}/i} {",
      "final ${2:RemoteDataSource} remoteDataSource;",
      "${TM_FILENAME_BASE/(.*)/${1:/pascalcase}/}({required this.remoteDataSource});",
      "}"]

What is the use of all the g? You have no recurring matches.

Edit small modification based on Mark's comment. Match till end of string with $

Edit needed the case insensitive i, based on the given filename.

edited Feb 8, 2023 at 14:04

answered Feb 4, 2023 at 18:01

rioV8

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4 Comments

Abdullah Mohamed Over a year ago

result is not what I'm expecting your answer result

class HomeRepositoryImpl implements HomeRepositoryImpl {   final HomeDataSource remoteDataSource;   HomeRepositoryImpl({required this.remoteDataSource}); }

Abdullah Mohamed Over a year ago

i want it to be like that

class HomeRepositoryImpl implements HomeRepository {   final HomeDataSource remoteDataSource;   HomeRepositoryImpl({required this.remoteDataSource}); }

Mark Over a year ago

Try this instead: ${TM_FILENAME_BASE/(.*?)(Impl)?$/${1:/pascalcase}/} for the after the implements part. Note I added $ to the end of the regex to make it work correctly.

Abdullah Mohamed Over a year ago

still not working

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