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194
foobar2000/helpers/create_directory_helper.cpp
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194
foobar2000/helpers/create_directory_helper.cpp
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#include "StdAfx.h"
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#include "create_directory_helper.h"
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#include <pfc/pathUtils.h>
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namespace create_directory_helper
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{
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static void create_path_internal(const char * p_path,t_size p_base,abort_callback & p_abort) {
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pfc::string8_fastalloc temp;
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for(t_size walk = p_base; p_path[walk]; walk++) {
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if (p_path[walk] == '\\') {
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temp.set_string(p_path,walk);
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try {filesystem::g_create_directory(temp.get_ptr(),p_abort);} catch(exception_io_already_exists) {}
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}
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}
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}
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static bool is_valid_netpath_char(char p_char) {
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return pfc::char_is_ascii_alphanumeric(p_char) || p_char == '_' || p_char == '-' || p_char == '.';
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}
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static bool test_localpath(const char * p_path) {
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if (pfc::strcmp_partial(p_path,"file://") == 0) p_path += strlen("file://");
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return pfc::char_is_ascii_alpha(p_path[0]) &&
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p_path[1] == ':' &&
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p_path[2] == '\\';
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}
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static bool test_netpath(const char * p_path) {
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if (pfc::strcmp_partial(p_path,"file://") == 0) p_path += strlen("file://");
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if (*p_path != '\\') return false;
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p_path++;
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if (*p_path != '\\') return false;
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p_path++;
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if (!is_valid_netpath_char(*p_path)) return false;
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p_path++;
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while(is_valid_netpath_char(*p_path)) p_path++;
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if (*p_path != '\\') return false;
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return true;
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}
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void create_path(const char * p_path,abort_callback & p_abort) {
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if (test_localpath(p_path)) {
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t_size walk = 0;
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if (pfc::strcmp_partial(p_path,"file://") == 0) walk += strlen("file://");
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create_path_internal(p_path,walk + 3,p_abort);
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} else if (test_netpath(p_path)) {
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t_size walk = 0;
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if (pfc::strcmp_partial(p_path,"file://") == 0) walk += strlen("file://");
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while(p_path[walk] == '\\') walk++;
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while(p_path[walk] != 0 && p_path[walk] != '\\') walk++;
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while(p_path[walk] == '\\') walk++;
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while(p_path[walk] != 0 && p_path[walk] != '\\') walk++;
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while(p_path[walk] == '\\') walk++;
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create_path_internal(p_path,walk,p_abort);
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} else {
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pfc::throw_exception_with_message< exception_io > ("Could not create directory structure; unknown path format");
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}
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}
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#ifdef _WIN32
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static bool is_bad_dirchar(char c)
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{
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return c==' ' || c=='.';
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}
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#endif
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void make_path(const char * parent,const char * filename,const char * extension,bool allow_new_dirs,pfc::string8 & out,bool really_create_dirs,abort_callback & p_abort)
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{
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out.reset();
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if (parent && *parent)
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{
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out = parent;
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out.fix_dir_separator('\\');
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}
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bool last_char_is_dir_sep = true;
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while(*filename)
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{
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#ifdef WIN32
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if (allow_new_dirs && is_bad_dirchar(*filename))
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{
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const char * ptr = filename+1;
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while(is_bad_dirchar(*ptr)) ptr++;
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if (*ptr!='\\' && *ptr!='/') out.add_string(filename,ptr-filename);
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filename = ptr;
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if (*filename==0) break;
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}
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#endif
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if (pfc::is_path_bad_char(*filename))
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{
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if (allow_new_dirs && (*filename=='\\' || *filename=='/'))
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{
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if (!last_char_is_dir_sep)
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{
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if (really_create_dirs) try{filesystem::g_create_directory(out,p_abort);}catch(exception_io_already_exists){}
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out.add_char('\\');
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last_char_is_dir_sep = true;
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}
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}
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else
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out.add_char('_');
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}
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else
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{
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out.add_byte(*filename);
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last_char_is_dir_sep = false;
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}
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filename++;
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}
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if (out.length()>0 && out[out.length()-1]=='\\')
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{
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out.add_string("noname");
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}
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if (extension && *extension)
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{
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out.add_char('.');
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out.add_string(extension);
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}
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}
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}
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pfc::string create_directory_helper::sanitize_formatted_path(pfc::stringp formatted, bool allowWC) {
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return sanitize_formatted_path_ex(formatted, allowWC, pfc::io::path::charReplaceDefault);
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};
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pfc::string create_directory_helper::sanitize_formatted_path_ex(pfc::stringp formatted, bool allowWC, charReplace_t replace) {
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pfc::string out;
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t_size curSegBase = 0;
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for (t_size walk = 0; ; ++walk) {
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const char c = formatted[walk];
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const bool end = (c == 0);
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if (end || pfc::io::path::isSeparator(c)) {
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if (curSegBase < walk) {
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pfc::string seg(formatted + curSegBase, walk - curSegBase);
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out = pfc::io::path::combine(out, pfc::io::path::validateFileName(seg, allowWC, end /*preserve ext*/, replace));
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}
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if (end) break;
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curSegBase = walk + 1;
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}
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}
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return out;
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}
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void create_directory_helper::format_filename_ex(const metadb_handle_ptr & handle, titleformat_hook * p_hook, titleformat_object::ptr spec, const char * suffix, pfc::string_base & out) {
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format_filename_ex(handle, p_hook, spec, suffix, out, pfc::io::path::charReplaceDefault);
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}
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void create_directory_helper::format_filename_ex(const metadb_handle_ptr & handle,titleformat_hook * p_hook,titleformat_object::ptr spec,const char * suffix, pfc::string_base & out, charReplace_t replace) {
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pfc::string_formatter formatted;
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titleformat_text_filter_myimpl filter;
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filter.m_replace = replace;
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handle->format_title(p_hook,formatted,spec,&filter);
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formatted << suffix;
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out = sanitize_formatted_path_ex(formatted, false, replace).ptr();
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}
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void create_directory_helper::format_filename(const metadb_handle_ptr & handle,titleformat_hook * p_hook,titleformat_object::ptr spec,pfc::string_base & out) {
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format_filename_ex(handle, p_hook, spec, "", out);
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}
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void create_directory_helper::format_filename(const metadb_handle_ptr & handle,titleformat_hook * p_hook,const char * spec,pfc::string_base & out)
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{
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service_ptr_t<titleformat_object> script;
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if (titleformat_compiler::get()->compile(script,spec)) {
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format_filename(handle, p_hook, script, out);
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} else {
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out.reset();
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}
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}
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static bool substSanity(const char * subst) {
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if (subst == nullptr) return false;
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for (size_t w = 0; subst[w]; ++w) {
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if (pfc::io::path::isSeparator(subst[w])) return false;
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}
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return true;
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}
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void create_directory_helper::titleformat_text_filter_myimpl::write(const GUID & p_inputType,pfc::string_receiver & p_out,const char * p_data,t_size p_dataLength) {
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if (p_inputType == titleformat_inputtypes::meta) {
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pfc::string_formatter temp;
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for(t_size walk = 0; walk < p_dataLength; ++walk) {
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char c = p_data[walk];
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if (c == 0) break;
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const char * subst = nullptr;
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if (pfc::io::path::isSeparator(c)) {
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if (m_replace) {
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const char * proposed = m_replace(c);
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if (substSanity(proposed)) subst = proposed;
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}
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if (subst == nullptr) subst = "-";
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}
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if (subst != nullptr) temp.add_string(subst);
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else temp.add_byte(c);
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}
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p_out.add_string(temp);
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} else p_out.add_string(p_data,p_dataLength);
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}
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