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Simplify substr manipulations with erase (#1532)

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This avoids creating a new std::string.
This commit is contained in:
Andrew Gaul 2021-01-25 18:02:32 +09:00 committed by GitHub
parent dc9255bc5f
commit d019dda4f7
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 34 additions and 30 deletions
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2
src/addhead.cpp
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@ -116,7 +116,7 @@ bool AdditionalHeader::Load(const char* file)
delete paddhead;
continue;
}
key = key.substr(strlen(ADD_HEAD_REGEX));
key.erase(0, strlen(ADD_HEAD_REGEX));
// compile
regex_t* preg = new regex_t;

2
src/cache.cpp
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@ -588,7 +588,7 @@ bool StatCache::DelStat(const char* key, bool lock_already_held)
std::string strpath = key;
if('/' == strpath[strpath.length() - 1]){
// If there is "path" cache, delete it.
strpath = strpath.substr(0, strpath.length() - 1);
strpath.erase(strpath.length() - 1);
}else{
// If there is "path/" cache, delete it.
strpath += "/";

7
src/curl.cpp
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@ -1652,7 +1652,7 @@ bool S3fsCurl::ParseIAMCredentialResponse(const char* response, iamcredmap_t& ke
if(std::string::npos == (pos = oneline.find_first_of("0123456789", pos))){
continue;
}
oneline = oneline.substr(pos);
oneline.erase(0, pos);
if(std::string::npos == (pos = oneline.find_last_of("0123456789"))){
continue;
}
@ -1662,7 +1662,7 @@ bool S3fsCurl::ParseIAMCredentialResponse(const char* response, iamcredmap_t& ke
if(std::string::npos == (pos = oneline.find('\"', pos))){
continue;
}
oneline = oneline.substr(pos + sizeof(char));
oneline.erase(0, pos+1);
if(std::string::npos == (pos = oneline.find('\"'))){
continue;
}
@ -3827,7 +3827,8 @@ bool S3fsCurl::CopyMultipartPostComplete()
std::string etag;
partdata.uploaded = simple_parse_xml(bodydata.str(), bodydata.size(), "ETag", etag);
if(etag.size() >= 2 && *etag.begin() == '"' && *etag.rbegin() == '"'){
etag = etag.substr(1, etag.size() - 2);
etag.erase(etag.size() - 1);
etag.erase(0, 1);
}
(*partdata.petag) = etag;

14
src/curl_util.cpp
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@ -47,7 +47,7 @@ struct curl_slist* curl_slist_sort_insert(struct curl_slist* list, const char* d
std::string::size_type pos = strkey.find(':', 0);
if(std::string::npos != pos){
strval = strkey.substr(pos + 1);
strkey = strkey.substr(0, pos);
strkey.erase(pos);
}
return curl_slist_sort_insert(list, strkey.c_str(), strval.c_str());
@ -73,7 +73,7 @@ struct curl_slist* curl_slist_sort_insert(struct curl_slist* list, const char* k
std::string strcur = (*p)->data;
size_t pos;
if(std::string::npos != (pos = strcur.find(':', 0))){
strcur = strcur.substr(0, pos);
strcur.erase(pos);
}
int result = strcasecmp(strkey.c_str(), strcur.c_str());
@ -112,7 +112,7 @@ struct curl_slist* curl_slist_remove(struct curl_slist* list, const char* key)
std::string strcur = (*p)->data;
size_t pos;
if(std::string::npos != (pos = strcur.find(':', 0))){
strcur = strcur.substr(0, pos);
strcur.erase(pos);
}
int result = strcasecmp(strkey.c_str(), strcur.c_str());
@ -143,7 +143,7 @@ std::string get_sorted_header_keys(const struct curl_slist* list)
// skip empty-value headers (as they are discarded by libcurl)
continue;
}
strkey = strkey.substr(0, pos);
strkey.erase(pos);
}
if(0 < sorted_headers.length()){
sorted_headers += ";";
@ -384,10 +384,12 @@ const char* getCurlDebugHead(curl_infotype type)
bool etag_equals(std::string s1, std::string s2)
{
if(s1.length() > 1 && s1[0] == '\"' && s1[s1.length() - 1] == '\"'){
s1 = s1.substr(1, s1.size() - 2);
s1.erase(s1.size() - 1);
s1.erase(0, 1);
}
if(s2.length() > 1 && s2[0] == '\"' && s2[s2.length() - 1] == '\"'){
s2 = s2.substr(1, s2.size() - 2);
s2.erase(s2.size() - 1);
s2.erase(0, 1);
}
return 0 == strcasecmp(s1.c_str(), s2.c_str());
}

4
src/metaheader.cpp
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@ -44,7 +44,7 @@ static time_t cvt_string_to_time(const char *str)
strmtime = str;
std::string::size_type pos = strmtime.find('.', 0);
if(std::string::npos != pos){
strmtime = strmtime.substr(0, pos);
strmtime.erase(pos);
}
}
return static_cast<time_t>(cvt_strtoofft(strmtime.c_str()));
@ -151,7 +151,7 @@ mode_t get_mode(const headers_t& meta, const char* path, bool checkdir, bool for
// Leave just the mime type, remove any optional parameters (eg charset)
std::string::size_type pos = strConType.find(';');
if(std::string::npos != pos){
strConType = strConType.substr(0, pos);
strConType.erase(pos);
}
if(strConType == "application/x-directory" || strConType == "httpd/unix-directory"){
// Nextcloud uses this MIME type for directory objects when mounting bucket as external Storage

25
src/s3fs.cpp
View File

@ -219,7 +219,7 @@ static bool is_special_name_folder_object(const char* path)
if(std::string::npos == strpath.find("_$folder$", 0)){
if('/' == strpath[strpath.length() - 1]){
strpath = strpath.substr(0, strpath.length() - 1);
strpath.erase(strpath.length() - 1);
}
strpath += "_$folder$";
}
@ -256,7 +256,7 @@ static int chk_dir_object_type(const char* path, std::string& newpath, std::stri
if('/' != newpath[newpath.length() - 1]){
std::string::size_type Pos;
if(std::string::npos != (Pos = newpath.find("_$folder$", 0))){
newpath = newpath.substr(0, Pos);
newpath.erase(Pos);
}
newpath += "/";
}
@ -268,7 +268,8 @@ static int chk_dir_object_type(const char* path, std::string& newpath, std::stri
if(is_special_name_folder_object(newpath.c_str())){ // check support_compat_dir in this function
// "_$folder$" type.
(*pType) = DIRTYPE_FOLDER;
nowpath = newpath.substr(0, newpath.length() - 1) + "_$folder$"; // cut and add
nowpath.erase(newpath.length() - 1);
nowpath += "_$folder$"; // cut and add
}else if(isforce){
// "no dir object" type.
(*pType) = DIRTYPE_NOOBJ;
@ -285,7 +286,7 @@ static int chk_dir_object_type(const char* path, std::string& newpath, std::stri
}
}else if(support_compat_dir){
// Check "dir" when support_compat_dir is enabled
nowpath = newpath.substr(0, newpath.length() - 1);
nowpath.erase(newpath.length() - 1);
if(0 == (result = get_object_attribute(nowpath.c_str(), NULL, pmeta, false, &isforce))){
// Found "dir" cache --> this case is only "dir" type.
// Because, if object is "_$folder$" or "no dir object", the cache is "dir/" type.
@ -379,7 +380,7 @@ static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t
(*pisforce) = false;
strpath = path;
if(support_compat_dir && overcheck && std::string::npos != (Pos = strpath.find("_$folder$", 0))){
strpath = strpath.substr(0, Pos);
strpath.erase(Pos);
strpath += "/";
}
if(StatCache::getStatCacheData()->GetStat(strpath, pstat, pheader, overcheck, pisforce)){
@ -408,7 +409,7 @@ static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t
}
if(support_compat_dir && 0 != result){
// now path is "object/", do check "object_$folder$" for over checking
strpath = strpath.substr(0, strpath.length() - 1);
strpath.erase(strpath.length() - 1);
strpath += "_$folder$";
result = s3fscurl.HeadRequest(strpath.c_str(), (*pheader));
s3fscurl.DestroyCurlHandle();
@ -416,7 +417,7 @@ static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t
if(0 != result){
// cut "_$folder$" for over checking "no dir object" after here
if(std::string::npos != (Pos = strpath.find("_$folder$", 0))){
strpath = strpath.substr(0, Pos);
strpath.erase(Pos);
}
}
}
@ -424,7 +425,7 @@ static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t
if(support_compat_dir && 0 != result && std::string::npos == strpath.find("_$folder$", 0)){
// now path is "object" or "object/", do check "no dir object" which is not object but has only children.
if('/' == strpath[strpath.length() - 1]){
strpath = strpath.substr(0, strpath.length() - 1);
strpath.erase(strpath.length() - 1);
}
if(-ENOTEMPTY == directory_empty(strpath.c_str())){
// found "no dir object".
@ -454,7 +455,7 @@ static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t
// if path has "_$folder$", need to cut it.
if(std::string::npos != (Pos = strpath.find("_$folder$", 0))){
strpath = strpath.substr(0, Pos);
strpath.erase(Pos);
strpath += "/";
}
@ -1124,7 +1125,7 @@ static int s3fs_rmdir(const char* _path)
// Then "dir/" is not exists, but curl_delete returns 0.
// So need to check "dir" and should be removed it.
if('/' == strpath[strpath.length() - 1]){
strpath = strpath.substr(0, strpath.length() - 1);
strpath.erase(strpath.length() - 1);
}
if(0 == get_object_attribute(strpath.c_str(), &stbuf, NULL, false)){
if(S_ISDIR(stbuf.st_mode)){
@ -2516,7 +2517,7 @@ static int readdir_multi_head(const char* path, const S3ObjList& head, void* buf
std::string fillpath = disppath;
if('/' == disppath[disppath.length() - 1]){
fillpath = fillpath.substr(0, fillpath.length() -1);
fillpath.erase(fillpath.length() -1);
}
fillerlist.push_back(fillpath);
@ -4030,7 +4031,7 @@ static int set_bucket(const char* arg)
mount_prefix = pmount_prefix;
// remove trailing slash
if(mount_prefix[mount_prefix.size() - 1] == '/'){
mount_prefix = mount_prefix.substr(0, mount_prefix.size() - 1);
mount_prefix.erase(mount_prefix.size() - 1);
}
}
}else{

6
src/s3objlist.cpp
View File

@ -225,7 +225,7 @@ bool S3ObjList::GetNameList(s3obj_list_t& list, bool OnlyNormalized, bool CutSla
std::string name = (*iter).first;
if(CutSlash && 1 < name.length() && '/' == name[name.length() - 1]){
// only "/" std::string is skipped this.
name = name.substr(0, name.length() - 1);
name.erase(name.length() - 1);
}
list.push_back(name);
}
@ -243,13 +243,13 @@ bool S3ObjList::MakeHierarchizedList(s3obj_list_t& list, bool haveSlash)
for(liter = list.begin(); list.end() != liter; ++liter){
std::string strtmp = (*liter);
if(1 < strtmp.length() && '/' == strtmp[strtmp.length() - 1]){
strtmp = strtmp.substr(0, strtmp.length() - 1);
strtmp.erase(strtmp.length() - 1);
}
h_map[strtmp] = true;
// check hierarchized directory
for(std::string::size_type pos = strtmp.find_last_of('/'); std::string::npos != pos; pos = strtmp.find_last_of('/')){
strtmp = strtmp.substr(0, pos);
strtmp.erase(pos);
if(0 == strtmp.length() || "/" == strtmp){
break;
}

4
src/string_util.cpp
View File

@ -207,13 +207,13 @@ bool takeout_str_dquart(std::string& str)
// '"' for start
if(std::string::npos != (pos = str.find_first_of('\"'))){
str = str.substr(pos + 1);
str.erase(0, pos + 1);
// '"' for end
if(std::string::npos == (pos = str.find_last_of('\"'))){
return false;
}
str = str.substr(0, pos);
str.erase(pos);
if(std::string::npos != str.find_first_of('\"')){
return false;
}