ppx_custom_printf

Tech stack & purpose

ppx_custom_printf is a ppx rewriter for OCaml that extends printf-style format strings to support user-defined string conversion functions. Rather than introducing new syntax, it repurposes the `!` operator on format strings to enable specifiers like `%{Time}` that automatically call corresponding `to_string` functions (in this case `Time.to_string`). The tool also supports S-expression conversion via `%{sexp:<type>}` syntax and allows specification of custom conversion functions beyond the default `to_string`. The project appears to be built for the OCaml ecosystem and integrates with Sexplib for S-expression support.

Languages

Contributors

• 
  jdimino-js28 commits · 0 followers
• 
  Xavier Clerc20 commits · 116 followers
• 
  public-release17 commits · 11 followers
• 
  Thomas Refis14 commits · 166 followers
• 
  Arseniy Alekseyev8 commits · 61 followers
• 
  Jakub Staroń1 commits · 16 followers
• Jono Woodhouse1 commits