int line_longer_than(lazy_entry const& e, int limit) { int line_len = 0; switch (e.type()) { case lazy_entry::list_t: line_len += 4; if (line_len > limit) return -1; for (int i = 0; i < e.list_size(); ++i) { int ret = line_longer_than(*e.list_at(i), limit - line_len); if (ret == -1) return -1; line_len += ret + 2; } break; case lazy_entry::dict_t: line_len += 4; if (line_len > limit) return -1; for (int i = 0; i < e.dict_size(); ++i) { line_len += 4 + e.dict_at(i).first.size(); if (line_len > limit) return -1; int ret = line_longer_than(*e.dict_at(i).second, limit - line_len); if (ret == -1) return -1; line_len += ret + 1; } break; case lazy_entry::string_t: line_len += 3 + e.string_length(); break; case lazy_entry::int_t: { boost::int64_t val = e.int_value(); while (val > 0) { ++line_len; val /= 10; } line_len += 2; } break; case lazy_entry::none_t: line_len += 4; break; } if (line_len > limit) return -1; return line_len; }
std::string print_entry(lazy_entry const& e, bool single_line, int indent) { char indent_str[200]; memset(indent_str, ' ', 200); indent_str[0] = ','; indent_str[1] = '\n'; indent_str[199] = 0; if (indent < 197 && indent >= 0) indent_str[indent+2] = 0; std::string ret; switch (e.type()) { case lazy_entry::none_t: return "none"; case lazy_entry::int_t: { char str[100]; snprintf(str, sizeof(str), "%" PRId64, e.int_value()); return str; } case lazy_entry::string_t: { bool printable = true; char const* str = e.string_ptr(); for (int i = 0; i < e.string_length(); ++i) { char c = str[i]; if (c >= 32 && c < 127) continue; printable = false; break; } ret += "'"; if (printable) { if (single_line && e.string_length() > 30) { ret.append(e.string_ptr(), 14); ret += "..."; ret.append(e.string_ptr() + e.string_length()-14, 14); } else ret.append(e.string_ptr(), e.string_length()); ret += "'"; return ret; } if (single_line && e.string_length() > 20) { for (int i = 0; i < 9; ++i) { char tmp[5]; snprintf(tmp, sizeof(tmp), "%02x", (unsigned char)str[i]); ret += tmp; } ret += "..."; for (int i = e.string_length() - 9 , len(e.string_length()); i < len; ++i) { char tmp[5]; snprintf(tmp, sizeof(tmp), "%02x", (unsigned char)str[i]); ret += tmp; } } else { for (int i = 0; i < e.string_length(); ++i) { char tmp[5]; snprintf(tmp, sizeof(tmp), "%02x", (unsigned char)str[i]); ret += tmp; } } ret += "'"; return ret; } case lazy_entry::list_t: { ret += '['; bool one_liner = line_longer_than(e, 200) != -1 || single_line; if (!one_liner) ret += indent_str + 1; for (int i = 0; i < e.list_size(); ++i) { if (i == 0 && one_liner) ret += " "; ret += print_entry(*e.list_at(i), single_line, indent + 2); if (i < e.list_size() - 1) ret += (one_liner?", ":indent_str); else ret += (one_liner?" ":indent_str+1); } ret += "]"; return ret; } case lazy_entry::dict_t: { ret += "{"; bool one_liner = line_longer_than(e, 200) != -1 || single_line; if (!one_liner) ret += indent_str+1; for (int i = 0; i < e.dict_size(); ++i) { if (i == 0 && one_liner) ret += " "; std::pair<std::string, lazy_entry const*> ent = e.dict_at(i); ret += "'"; ret += ent.first; ret += "': "; ret += print_entry(*ent.second, single_line, indent + 2); if (i < e.dict_size() - 1) ret += (one_liner?", ":indent_str); else ret += (one_liner?" ":indent_str+1); } ret += "}"; return ret; } } return ret; }
std::string print_entry(lazy_entry const& e, bool single_line, int indent) { char indent_str[200]; memset(indent_str, ' ', 200); indent_str[0] = ','; indent_str[1] = '\n'; indent_str[199] = 0; if (indent < 197 && indent >= 0) indent_str[indent+2] = 0; std::string ret; switch (e.type()) { case lazy_entry::none_t: return "none"; case lazy_entry::int_t: { char str[100]; std::snprintf(str, sizeof(str), "%" PRId64, e.int_value()); return str; } case lazy_entry::string_t: { print_string(ret, e.string_ptr(), e.string_length(), single_line); return ret; } case lazy_entry::list_t: { ret += '['; bool one_liner = line_longer_than(e, 200) != -1 || single_line; if (!one_liner) ret += indent_str + 1; for (int i = 0; i < e.list_size(); ++i) { if (i == 0 && one_liner) ret += " "; ret += print_entry(*e.list_at(i), single_line, indent + 2); if (i < e.list_size() - 1) ret += (one_liner?", ":indent_str); else ret += (one_liner?" ":indent_str+1); } ret += "]"; return ret; } case lazy_entry::dict_t: { ret += "{"; bool one_liner = line_longer_than(e, 200) != -1 || single_line; if (!one_liner) ret += indent_str+1; for (int i = 0; i < e.dict_size(); ++i) { if (i == 0 && one_liner) ret += " "; std::pair<std::string, lazy_entry const*> ent = e.dict_at(i); print_string(ret, ent.first.c_str(), int(ent.first.size()), true); ret += ": "; ret += print_entry(*ent.second, single_line, indent + 2); if (i < e.dict_size() - 1) ret += (one_liner?", ":indent_str); else ret += (one_liner?" ":indent_str+1); } ret += "}"; return ret; } } return ret; }