Created by: rienafairefr
PR checklist
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Read the contribution guidelines. -
Ran the shell script under ./bin/to update Petstore sample so that CIs can verify the change. (For instance, only need to run./bin/{LANG}-petstore.shand./bin/security/{LANG}-petstore.shif updating the {LANG} (e.g. php, ruby, python, etc) code generator or {LANG} client's mustache templates). Windows batch files can be found in.\bin\windows\. -
Filed the PR against the correct branch: master,3.3.x,4.0.x. Default:master. -
Copied the technical committee to review the pull request if your PR is targeting a particular programming language.
Description of the PR
As part of "Separation of Concerns" project and #842 I felt that the place for camelize, underscore, or dashize are not in the DefaultCodegen, they should be moved to a class in org.openapitools.codegen.utils, and then each language would have its own use for these static functions
I also extracted the escapeSpecialCharacters method of DefaultCodegen to a static method escape in StringUtils, looks better to me but that's not a mandatory part IMO