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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <assert.h>
#include <unistd.h>
#include "textFile.h"
#include "string_length.h"
textFile_t* newTextFile(char *s)
{
textFile_t *new;
char path[STR_PATH_SIZE];
assert( s != NULL );
if( s[0] == '/' )
{
strcpy(path, s);
}
else
{
getcwd(path, STR_PATH_SIZE);
strcat(path, "/");
strcat(path, s);
}
new = malloc(sizeof(textFile_t));
new->file = strdup(path);
new->text = newList();
return new;
}
static void createLine(list_t *list, char *p, int len)
{
char *line;
char *begin_line;
char *end_line;
int length_line = 0;
assert( list != NULL );
assert( p != NULL );
assert( len >= 0 );
begin_line = p;
do{
end_line = memchr( begin_line, '\n', len);
if( end_line == NULL )break;
length_line = (int ) (end_line - ( begin_line ) );
line = malloc( (length_line+1) * sizeof(char) );
memset(line, 0, (length_line+1) * sizeof(char) );
strncpy(line, begin_line, length_line);
addList(list, line);
len -= (length_line+1);
begin_line = end_line+1;
}while( begin_line != NULL );
}
/*
* Nacita subor *s a vrati ho f
* formatovany v type textFile_t*
*/
textFile_t* loadTextFile(char *s)
{
FILE *file;
textFile_t *ret;
char *p;
int file_length = 0;
struct stat buf;
assert( s != NULL );
if( lstat(s, &buf) < 0 )
{
fprintf(stderr, "CHYBA: nemozem ziskat status suboru %s!\n", s);
return NULL;
}
file_length = buf.st_size;
if( (file = fopen(s, "rt")) == NULL )
{
fprintf(stderr, "CHYBA: nemozem otvorit subor %s pre citanie\n", s);
return NULL;
}
p = malloc(file_length * sizeof(char));
if( fread(p, file_length * sizeof(char), 1, file) != 1 )
{
fprintf(stderr, "CHYBA: nemozem nacitat udaje zo suboru %s\n",s);
fclose(file);
return NULL;
}
fclose(file);
ret = newTextFile(s);
createLine(ret->text, p, file_length);
free(p);
return ret;
}
/*
* Zobrazi text ulozeny v *p
* do stdout
*/
void printTextFile(textFile_t *p)
{
int i;
assert( p != NULL );
printf("file : %s\n\n", p->file);
for(i = 0; i < p->text->count; i++)
{
printf("%3d >> %s\n", i, (char *)p->text->list[i]);
}
}
void saveTextFile(textFile_t *p)
{
int i;
FILE *file;
assert( p != NULL );
file = fopen(p->file, "wt");
for(i = 0; i < p->text->count; i++)
{
fprintf(file, "%s\n", (char *)p->text->list[i]);
}
fclose(file);
}
/*
* Uvolni text ulozeny v type textFile_t*
* z pamate.
*/
void destroyTextFile(textFile_t *p)
{
assert( p != NULL );
free(p->file);
destroyListItem(p->text, free);
free(p);
}
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