int
GetNextLine(char *dest, int size_dest, PRFileDesc *stream) {
char nextchar ='\0';
int done = 0;
int i = 0;
while(!done){
if( ( nextchar = my_fgetc(stream) ) != 0){
if( i < (size_dest - 1) ){
dest[i] = nextchar;
i++;
if(nextchar == '\n'){
/* end of line reached */
done = 1;
}
} else {
/* no more room in buffer */
done = 1;
}
} else {
/* error or end of file */
done = 1;
}
}
dest[i] = '\0';
/* return size of string read */
return i;
}
char * my_fgets(char *buffer, int maxBuffer, FILE *f)
{
int i;
int cLast = '\0';
if (f == NULL || feof(f)) return NULL;
for (i=0; i<maxBuffer; i++) {
buffer[i] = my_fgetc(f);
if (buffer[i] == '\0') return buffer;
/* skip TeX comments */
while (buffer[i] == '%' && cLast != '\\' && buffer[i] != '\0') {
do {
buffer[i] = my_fgetc(f);
} while (buffer[i] == '\0' || buffer[i] == '\n');
if (buffer[i] == '\0') return buffer;
do {
buffer[i] = my_fgetc(f);
} while (buffer[i] == '\0' || buffer[i] == ' ');
if (buffer[i] == '\0') return buffer;
}
if (buffer[i] == '\n') {
if (cLast == '\\')
buffer[i] = ' '; /* replace backslash-newline with backslash-space */
else
break;
}
cLast = buffer[i];
}
buffer[i] = '\0';
return buffer;
}
/* Read an arbitrarily long line of text from STREAM into LINEBUFFER.
* Consider lines to be terminated by DELIMITER.
* Keep the delimiter.
* Do not NUL-terminate; Therefore the stream can contain NUL bytes, and
* the length (including the delimiter) is returned in linebuffer->length.
* Return NULL when stream is empty or upon error.
* Otherwise, return LINEBUFFER.
*/
struct LineBuffer *readlinebuffer(struct LineBuffer *linebuffer, MY_FILE *stream, char delimiter)
{
int c;
char *buffer = linebuffer->buffer;
char *p = linebuffer->buffer;
char *end = buffer + linebuffer->size;
if(my_feof(stream)) return NULL;
do
{
c = my_fgetc(stream);
if(c == EOF)
{
// Return NULL when stream is empty or upon error
if(p == buffer || my_ferror(stream)) return NULL;
// append DELIMITER if it's the last line of a file that ends in a character other than DELIMITER.
if(p[-1] != delimiter) c = delimiter;
}
// Check if we need to allocate more space
if(p == end)
{
size_t oldsize = linebuffer->size;
linebuffer->size += BUFF_SIZE_INC;
buffer = realloc(buffer, linebuffer->size);
p = buffer + oldsize;
linebuffer->buffer = buffer;
end = buffer + linebuffer->size;
}
*p++ = c;
}
while(c != delimiter);
linebuffer->length = p - buffer;
return linebuffer;
}
