Kelsidavis-WoWee/tools/editor/cli_arg_parse.hpp
Kelsi 56c12bc252
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refactor(editor): extract optional-arg parse helpers
Every --gen-texture-* and --gen-mesh-* handler had its own
copy of the same 3-line "if there's another arg AND it
doesn't look like a switch, parse it; otherwise keep the
default" block. 458 sites across cli_gen_texture.cpp and
cli_gen_mesh.cpp duplicated this pattern.

Hoist into cli_arg_parse.hpp as inline parseOpt{Int,Float,Uint}
(int& i, int argc, char** argv, T& value). Each call site
collapses from 3 lines to 1:

  if (i + 1 < argc && argv[i + 1][0] != '-') {
      try { width = std::stof(argv[++i]); } catch (...) {}
  }

becomes

  parseOptFloat(i, argc, argv, width);

cli_gen_mesh.cpp drops by ~250 lines, cli_gen_texture.cpp
by ~430 lines. Output bytes verified identical: firepit
default-arg surface area 2.1100 m² unchanged.

Future texture/mesh primitives now opt in by including one
header instead of pasting the lambda.
2026-05-09 11:42:55 -07:00

45 lines
1.3 KiB
C++

#pragma once
#include <cstdint>
#include <cstring>
#include <string>
namespace wowee {
namespace editor {
namespace cli {
// Common pattern across cli_gen_texture and cli_gen_mesh handlers:
// "if there's another arg AND it doesn't look like a switch, parse
// it into <var>; otherwise leave <var> at its default". 465+ copies
// across the two files were each writing this 3-line block manually.
//
// Each helper silently no-ops on parse failure so the caller's
// default value is preserved — matches the prior try/catch
// behavior exactly.
inline bool parseOptArg(int& i, int argc, char** argv) {
return i + 1 < argc && argv[i + 1][0] != '-';
}
inline void parseOptInt(int& i, int argc, char** argv, int& value) {
if (parseOptArg(i, argc, argv)) {
try { value = std::stoi(argv[++i]); } catch (...) {}
}
}
inline void parseOptFloat(int& i, int argc, char** argv, float& value) {
if (parseOptArg(i, argc, argv)) {
try { value = std::stof(argv[++i]); } catch (...) {}
}
}
inline void parseOptUint(int& i, int argc, char** argv, uint32_t& value) {
if (parseOptArg(i, argc, argv)) {
try { value = static_cast<uint32_t>(std::stoul(argv[++i])); }
catch (...) {}
}
}
} // namespace cli
} // namespace editor
} // namespace wowee