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