63 lines
1.1 KiB
C++
63 lines
1.1 KiB
C++
// Copyright (C) 2005, Ondra Kamenik
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// $Id: memory_file.cpp 987 2006-10-17 14:39:19Z kamenik $
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#include "memory_file.h"
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#include <cstdio>
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using namespace ogu;
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int ogu::calc_pos_offset(int length, const char* str, int line, int col)
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{
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int i = 0;
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int il = 1;
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int ic = 1;
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while (i < length && il <= line && ic <= col) {
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if (str[i] == '\n') {
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il++;
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ic = 1;
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} else {
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ic++;
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}
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}
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return i;
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}
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void ogu::calc_pos_line_and_col(int length, const char* str, int offset,
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int& line, int& col)
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{
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line = 1;
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col = 0;
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int i = 0;
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while (i < length && i < offset) {
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if (str[i] == '\n') {
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line++;
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col = 0;
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}
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i++;
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col++;
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}
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}
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MemoryFile::MemoryFile(const char* fname)
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: len(-1), data(NULL)
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{
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FILE* fd = fopen(fname, "rb");
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if (fd) {
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// get the file size
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fseek(fd, 0, SEEK_END);
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len = ftell(fd);
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// allocate space for the file plus ending '\0' character
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data = new char[len+1];
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// read file and set data
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fseek(fd, 0, SEEK_SET);
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int i = 0;
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int c;
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while (EOF != (c = fgetc(fd)))
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data[i++] = (unsigned char)c;
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data[len] = '\0';
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fclose(fd);
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}
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}
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