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117 lines
2.4 KiB
117 lines
2.4 KiB
// Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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 implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/fluid/string/string_helper.h"
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#include <ctype.h>
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#include <stdio.h>
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#include <cstring>
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#include <string>
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#include "glog/logging.h"
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namespace paddle {
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namespace string {
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inline size_t count_spaces(const char* s) {
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size_t count = 0;
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while (*s != 0 && isspace(*s++)) {
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count++;
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}
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return count;
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}
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inline size_t count_nonspaces(const char* s) {
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size_t count = 0;
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while (*s != 0 && !isspace(*s++)) {
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count++;
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}
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return count;
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}
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// remove leading and tailing spaces
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std::string trim_spaces(const std::string& str) {
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const char* p = str.c_str();
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while (*p != 0 && isspace(*p)) {
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p++;
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}
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size_t len = strlen(p);
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while (len > 0 && isspace(p[len - 1])) {
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len--;
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}
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return std::string(p, len);
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}
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std::string erase_spaces(const std::string& str) {
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std::string result;
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result.reserve(str.size());
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const char* p = str.c_str();
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while (*p != 0) {
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if (!isspace(*p)) {
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result.append(p, 1);
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}
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++p;
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}
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return result;
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}
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inline int str_to_float(const char* str, float* v) {
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const char* head = str;
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char* cursor = NULL;
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int index = 0;
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while (*(head += count_spaces(head)) != 0) {
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v[index++] = std::strtof(head, &cursor);
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if (head == cursor) {
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break;
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}
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head = cursor;
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}
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return index;
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}
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// A helper class for reading lines from file.
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// A line buffer is maintained. It
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// doesn't need to know the maximum possible length of a line.
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char* LineFileReader::getdelim(FILE* f, char delim) {
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#ifndef _WIN32
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int32_t ret = ::getdelim(&_buffer, &_buf_size, delim, f);
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if (ret >= 0) {
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if (ret >= 1 && _buffer[ret - 1] == delim) {
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_buffer[--ret] = 0;
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}
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_length = (size_t)ret;
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return _buffer;
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} else {
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_length = 0;
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CHECK(feof(f));
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return NULL;
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}
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#else
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return NULL;
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#endif
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}
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} // end namespace string
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} // end namespace paddle
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