/*
- Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
+/** @file src/subrip_reader.cc
+ * @brief SubripReader class.
+ */
+
#include "subrip_reader.h"
#include "exceptions.h"
+#include "util.h"
#include <boost/algorithm/string.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/regex.hpp>
+#include <boost/bind.hpp>
#include <cstdio>
#include <vector>
+#include <iostream>
using std::string;
using std::vector;
using std::list;
using std::cout;
using std::hex;
+using std::stringstream;
using boost::lexical_cast;
using boost::to_upper;
+using boost::optional;
+using boost::function;
using namespace sub;
+/** @param s Subtitle string encoded in UTF-8 */
+SubripReader::SubripReader (string const & s)
+{
+ stringstream str (s);
+ this->read (boost::bind (&get_line_stringstream, &str));
+}
+
+/** @param f Subtitle file encoded in UTF-8 */
SubripReader::SubripReader (FILE* f)
+{
+ this->read (boost::bind (&get_line_file, f));
+}
+
+void
+SubripReader::read (function<optional<string> ()> get_line)
{
enum {
COUNTER,
CONTENT
} state = COUNTER;
- char buffer[256];
-
Time from;
Time to;
string line;
int line_number = 0;
- while (!feof (f)) {
- char* r = fgets (buffer, sizeof (buffer), f);
- if (r == 0 || feof (f)) {
+ while (true) {
+ optional<string> line = get_line ();
+ if (!line) {
break;
}
- line = string (buffer);
- trim_right_if (line, boost::is_any_of ("\n\r"));
+ trim_right_if (*line, boost::is_any_of ("\n\r"));
if (
- line.length() >= 3 &&
- static_cast<unsigned char> (line[0]) == 0xef &&
- static_cast<unsigned char> (line[1]) == 0xbb &&
- static_cast<unsigned char> (line[2]) == 0xbf
+ line->length() >= 3 &&
+ static_cast<unsigned char> (line.get()[0]) == 0xef &&
+ static_cast<unsigned char> (line.get()[1]) == 0xbb &&
+ static_cast<unsigned char> (line.get()[2]) == 0xbf
) {
/* Skip Unicode byte order mark */
- line = line.substr (3);
+ line = line->substr (3);
}
switch (state) {
case COUNTER:
{
- if (line.empty ()) {
+ if (line->empty ()) {
/* a blank line at the start is ok */
break;
}
case METADATA:
{
vector<string> p;
- boost::algorithm::split (p, line, boost::algorithm::is_any_of (" "));
+ boost::algorithm::split (p, *line, boost::algorithm::is_any_of (" "));
if (p.size() != 3 && p.size() != 7) {
- throw SubripError (line, "a time/position line");
+ throw SubripError (*line, "a time/position line");
}
from = convert_time (p[0]);
break;
}
case CONTENT:
- if (line.empty ()) {
+ if (line->empty ()) {
state = COUNTER;
line_number = 0;
} else {
- convert_line (line, line_number, from, to);
+ convert_line (*line, line_number, from, to);
line_number++;
}
break;
colours.push_back (p.colour);
}
} else if (tag == "/font") {
+ maybe_content (p);
colours.pop_back ();
p.colour = colours.back ();
}