| /** \file ftools.cpp . |
| ----------------------------------------------------------------------------- |
| |
| |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| |
| ----------------------------------------------------------------------------- |
| |
| Description: |
| |
| ----------------------------------------------------------------------------- |
| |
| |
| -------------------------------------------------------------------------- */ |
| |
| #include "uima/ftools.hpp" |
| |
| #include <stdio.h> |
| #include <limits.h> |
| |
| #include <fstream> |
| #include <iomanip> |
| #include <string> |
| using namespace std; |
| |
| #include "uima/filename.hpp" |
| using namespace uima; |
| |
| #include "uima/strtools.hpp" |
| |
| /* ----------------------------------------------------------------------- */ |
| /* Constants */ |
| /* ----------------------------------------------------------------------- */ |
| |
| /* ----------------------------------------------------------------------- */ |
| /* Implementation */ |
| /* ----------------------------------------------------------------------- */ |
| |
| |
| |
| |
| size_t |
| ftool_ReadFileToBuffer( |
| const util::Filename& rclFileName, |
| char *& rpszData |
| ) { |
| rpszData = NULL; |
| unsigned long lFSize = rclFileName.getFileSize(); |
| if (lFSize == 0) { |
| return 0; |
| } |
| // **need to check this** assert(sizeof(size_t) == sizeof(unsigned int)); //make sure size_t is indeed an unsigned int |
| assert((unsigned long)lFSize <= (unsigned long)UINT_MAX-1); //we cannot read more than that in one go |
| |
| FILE * pfStream = NULL; |
| pfStream = fopen(rclFileName.getAsCString(), "rb"); |
| if (pfStream == NULL) { |
| return 0; |
| } |
| |
| rpszData = (char*)malloc((size_t)lFSize + 1); |
| assert(rpszData != NULL); |
| |
| size_t uiBytesRead; |
| uiBytesRead = fread(rpszData, 1, (size_t)lFSize, pfStream ); |
| fclose(pfStream); |
| |
| if (uiBytesRead != lFSize) { |
| free(rpszData); |
| rpszData = NULL; |
| return 0; |
| } |
| assert((unsigned long)uiBytesRead <= lFSize); |
| rpszData[uiBytesRead] = '\0'; //zero terminate buffer |
| return (size_t) uiBytesRead; |
| } |
| |
| |
| size_t |
| ftool_ReadFileToString( |
| const util::Filename& rclFileName, |
| string& rsData |
| ) { |
| size_t uiRetVal; |
| |
| rsData = ""; |
| char * pszBuff = NULL; |
| |
| uiRetVal = ftool_ReadFileToBuffer(rclFileName, pszBuff); |
| if (uiRetVal != 0) { |
| rsData.insert(0, pszBuff, uiRetVal); |
| free(pszBuff); |
| } |
| |
| return uiRetVal; |
| } |
| |
| |
| /* counts the number of lines in a text file */ |
| /* return: -1 if file not readable, number of lines else */ |
| long |
| ftool_NbrOfLines( |
| const util::Filename& rclFileName |
| ) { |
| ifstream sin(rclFileName.getAsCString()); |
| if (!sin) { |
| return -1; |
| } |
| string data; |
| long lines = 0; |
| while (!sin.eof()) { |
| lines++; |
| // ... we can use ANSI function getline |
| (void)getline(sin, data, '\n'); |
| } |
| return lines; |
| } |
| |
| |
| |