Method add_file_name_recursive

LASlib/src/lasreader.cpp:2552–2594

Searches for the specified pattern in the current directory and recursively in all subdirectories, whilst retaining the original file pattern

#include <windows.h>
/// Searches for the specified pattern in the current directory and recursively in all subdirectories, whilst retaining the original file pattern
BOOL LASreadOpener::add_file_name_recursive(const std::string& pattern, BOOL unique) {
  // Process the pattern itself first
  add_file_name(pattern.c_str(), unique);

  // Split the pattern into a directory and a suffix
  std::string p = pattern;
  size_t pos = p.find_last_of("\\/:");
  std::string dir;
  std::string suffix;

  // If no slash use current directory
  if (pos == std::string::npos) {
    dir = ".";
    suffix = p;
  } else {
    dir = p.substr(0, pos);
    suffix = p.substr(pos + 1);
  }

  std::string search = dir + "\\*";

  WIN32_FIND_DATA info;
  HANDLE h = FindFirstFile(search.c_str(), &info);
  if (h == INVALID_HANDLE_VALUE) return TRUE;

  do {
    if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
      const char* name = info.cFileName;

      // Skip '.' and '..'
      if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0) continue;

      std::string new_pattern = dir + "\\" + name + "\\" + suffix;

      // Process recursively
      add_file_name_recursive(new_pattern, unique);
    }

  } while (FindNextFile(h, &info));

  FindClose(h);
  return TRUE;
}

BOOL LASreadOpener::add_file_name(const CHAR* file_name, BOOL unique) {
  BOOL r = FALSE;