84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
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/*
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Tencent is pleased to support the open source community by making
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PhxRPC available.
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Copyright (C) 2016 THL A29 Limited, a Tencent company.
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All rights reserved.
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Licensed under the BSD 3-Clause License (the "License"); you may
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not use this file except in compliance with the License. You may
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obtain a copy of the License at
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https://opensource.org/licenses/BSD-3-Clause
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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implied. See the License for the specific language governing
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permissions and limitations under the License.
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See the AUTHORS file for names of contributors.
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*/
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#include <cstdarg>
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#include <cstdio>
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#include "code_utils.h"
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using namespace std;
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namespace phxrpc {
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void
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StrTrim(string *str, const char *to_trim)
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{
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string::size_type start_pos = 0;
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string::size_type end_pos = 0;
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start_pos = str->find_first_not_of(to_trim);
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end_pos = str->find_last_not_of(to_trim);
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if (start_pos == string::npos || end_pos == string::npos) {
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*str = "";
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} else {
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*str = str->substr(start_pos, end_pos - start_pos + 1);
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}
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}
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void
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StrReplaceAll(string *haystack, string needle, string s)
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{
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string::size_type pos = 0;
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while ((pos = haystack->find(needle, pos)) != string::npos) {
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haystack->erase(pos, needle.length());
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haystack->insert(pos, s);
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pos += s.length();
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}
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}
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void
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StrAppendFormat(string *result, const char *fmt, ...)
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{
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if (nullptr == fmt) return;
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size_t len = 0;
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{
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va_list va;
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va_start(va, fmt);
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len = vsnprintf(NULL, 0, fmt, va);
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va_end(va);
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}
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if (len > 0) {
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size_t old_len = result->size();
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result->resize(old_len + len);
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va_list va;
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va_start(va, fmt);
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vsnprintf(((char *) result->c_str()) + old_len, len + 1, fmt, va);
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va_end(va);
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}
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}
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}// namespace phxrpc
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