|
|
@ -4,23 +4,23 @@ |
|
|
|
|
|
|
|
using namespace std; |
|
|
|
|
|
|
|
/*
|
|
|
|
|
|
|
|
void Buffer::display() const |
|
|
|
{ |
|
|
|
int ix_stop_line_ = ix_top_line_ + window_height; |
|
|
|
for (int i = ix_top_line_; i < ix_stop_line_; ++i) { |
|
|
|
if (i < v_lines_.size()) |
|
|
|
cout << std::setw(6) << i+1 << " " << v_lines_[i]; |
|
|
|
cout << '\n'; |
|
|
|
} |
|
|
|
int ix_stop_line_ = ix_top_line_ + window_height_; |
|
|
|
for (int i = ix_top_line_; i < ix_stop_line_; ++i) { |
|
|
|
if (i < v_lines_.size()) |
|
|
|
cout << std::setw(4) << i+1 << " " << v_lines_[i]; |
|
|
|
cout << '\n'; |
|
|
|
} |
|
|
|
} |
|
|
|
*/ |
|
|
|
|
|
|
|
/*
|
|
|
|
string* Buffer::get_lines() const |
|
|
|
{ |
|
|
|
string* lines = new string[window_height]; |
|
|
|
string* lines = new string[window_height_]; |
|
|
|
int line_num = 0; |
|
|
|
while (line_num < window_height && line_num + ix_top_line_ < v_lines_.size()) { |
|
|
|
while (line_num < window_height_ && line_num + ix_top_line_ < v_lines_.size()) { |
|
|
|
lines[line_num] = v_lines_[line_num + ix_top_line_]; |
|
|
|
//cout << v_lines_[line_num] << endl;
|
|
|
|
++line_num; |
|
|
@ -30,107 +30,163 @@ string* Buffer::get_lines() const |
|
|
|
|
|
|
|
return lines; |
|
|
|
} |
|
|
|
*/ |
|
|
|
|
|
|
|
vector<string> Buffer::split_line(string & str) { |
|
|
|
//Initialize the substring and set the positions in the string where they need to exist
|
|
|
|
vector<string> v = {}; |
|
|
|
string str_part = str; |
|
|
|
size_t curr_pos = str_part.find(" "); |
|
|
|
size_t total_pos = curr_pos; |
|
|
|
bool searching = true; |
|
|
|
|
|
|
|
// Split up the lines
|
|
|
|
while (str.length() > maximum_length_) |
|
|
|
{ |
|
|
|
//Re-initialize the substring and set the positions in the string where they need to exist
|
|
|
|
str_part = str; |
|
|
|
curr_pos = str_part.find(" "); |
|
|
|
total_pos = curr_pos; |
|
|
|
searching = true; |
|
|
|
|
|
|
|
//While searching for the next space in a string
|
|
|
|
while (searching) |
|
|
|
{ |
|
|
|
str_part = str_part.substr(curr_pos + 1, str_part.length()); |
|
|
|
curr_pos = str_part.find(" "); |
|
|
|
if (curr_pos == -1) |
|
|
|
{ |
|
|
|
searching = false; |
|
|
|
} |
|
|
|
else if (total_pos + curr_pos + 1 > maximum_length_) |
|
|
|
{ |
|
|
|
searching = false; |
|
|
|
} |
|
|
|
else |
|
|
|
{ |
|
|
|
total_pos += curr_pos + 1; |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
auto get_tag(const string & line) |
|
|
|
str_part = str.substr(0, total_pos); |
|
|
|
str = str.substr(total_pos + 1, str.length()); |
|
|
|
v.push_back(str_part); |
|
|
|
} |
|
|
|
v.push_back(str); |
|
|
|
|
|
|
|
return v; |
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
size_t Buffer::get_tag_(const string & line) |
|
|
|
{ |
|
|
|
auto p_tag = line.find("<p>"); |
|
|
|
auto b_tag = line.find("<br>"); |
|
|
|
size_t p_tag = line.find("<p>"); |
|
|
|
size_t b_tag = line.find("<br>"); |
|
|
|
|
|
|
|
if (p_tag > b_tag) |
|
|
|
return b_tag; |
|
|
|
else |
|
|
|
return p_tag; |
|
|
|
if (p_tag > b_tag) |
|
|
|
return b_tag; |
|
|
|
else |
|
|
|
return p_tag; |
|
|
|
} |
|
|
|
|
|
|
|
bool Buffer::open(const string & new_file_name) |
|
|
|
{ |
|
|
|
std::ifstream file(new_file_name); |
|
|
|
if (!file) |
|
|
|
return false; |
|
|
|
|
|
|
|
v_lines_.clear(); |
|
|
|
// Note: the vector is cleared only after we know the file
|
|
|
|
// opened successfully.
|
|
|
|
|
|
|
|
int curr_link = 0; |
|
|
|
std::string curr_l, line; |
|
|
|
while(getline(file, line)) |
|
|
|
{ |
|
|
|
// Find tags and process them.
|
|
|
|
for(auto tag_loc = line.find("<a "); tag_loc != -1; tag_loc = line.find("<a", tag_loc + 1)) |
|
|
|
{ |
|
|
|
++curr_link; |
|
|
|
|
|
|
|
// Find the length of the tag and pull out the data from the tag.
|
|
|
|
auto tag_len = line.find_first_of('>', tag_loc) - tag_loc; |
|
|
|
std::string link_tag = line.substr(tag_loc + 3, tag_len - 3); |
|
|
|
|
|
|
|
// Seperate the link path and link name into seperate strings. Assuming no spaces in the link path.
|
|
|
|
auto second_space_loc = link_tag.find_first_of(' ', 0); |
|
|
|
std::string file_name = link_tag.substr(0, second_space_loc - 1); |
|
|
|
std::string link_name = link_tag.substr(second_space_loc + 1); |
|
|
|
|
|
|
|
// Adds the link as a pair to a vector of links.
|
|
|
|
v_links_.push_back({file_name, link_name}); |
|
|
|
|
|
|
|
// Reformat the link tag to match specification.
|
|
|
|
line.replace(tag_loc, tag_len + 1, "<" + link_name + ">[" + to_string(curr_link) + "]"); |
|
|
|
} |
|
|
|
|
|
|
|
// Search for all paragraphs and breaks in the line and add them to the v_lines vector.
|
|
|
|
for(auto _tag = get_tag(line); _tag != -1; _tag = get_tag(line)) |
|
|
|
{ |
|
|
|
|
|
|
|
// Check to see if we have a paragraph tag, so we can add a blank line.
|
|
|
|
bool is_p = _tag == line.find("<p>"); |
|
|
|
int tag_len = is_p ? 3 : 4; |
|
|
|
|
|
|
|
// Seperate out text that should stay in the previous line and text that goes in the new line. Delete the tag in the process.
|
|
|
|
std::string extra_text = line.substr(_tag + tag_len); |
|
|
|
line.erase(_tag); |
|
|
|
|
|
|
|
curr_l += line; |
|
|
|
|
|
|
|
// However, if the tag is located at the start of the file, there will be no data, so it shouldn't be added as it will be an empty line.
|
|
|
|
if(curr_l != "") |
|
|
|
{ |
|
|
|
v_lines_.push_back(curr_l); |
|
|
|
curr_l = ""; |
|
|
|
|
|
|
|
if(is_p) |
|
|
|
{ |
|
|
|
v_lines_.push_back(""); |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
// Move any remaining data on the line back into the line variable so that it can be processed.
|
|
|
|
line = extra_text; |
|
|
|
} |
|
|
|
// Append any data left on this line to the v_line being read. Add a space so that content from two lines can be seperated.
|
|
|
|
curr_l += " " + line; |
|
|
|
} |
|
|
|
|
|
|
|
// Push the contents of curr_p as it has the last line in the file.
|
|
|
|
v_lines_.push_back(curr_l); |
|
|
|
|
|
|
|
file_name_ = new_file_name; |
|
|
|
ix_top_line_ = 0; |
|
|
|
return true; |
|
|
|
std::ifstream file(new_file_name); |
|
|
|
if (!file) |
|
|
|
return false; |
|
|
|
|
|
|
|
v_lines_.clear(); |
|
|
|
// Note: the vector is cleared only after we know the file
|
|
|
|
// opened successfully.
|
|
|
|
|
|
|
|
int curr_link = 0; |
|
|
|
std::string curr_line, line; |
|
|
|
while(getline(file, line)) |
|
|
|
{ |
|
|
|
// Find tags and process them.
|
|
|
|
for(auto tag_loc = line.find("<a "); tag_loc != -1; tag_loc = line.find("<a", tag_loc + 1)) |
|
|
|
{ |
|
|
|
++curr_link; |
|
|
|
|
|
|
|
// Find the length of the tag and pull out the data from the tag.
|
|
|
|
auto tag_len = line.find_first_of('>', tag_loc) - tag_loc; |
|
|
|
std::string link_tag = line.substr(tag_loc + 3, tag_len - 3); |
|
|
|
|
|
|
|
// separate the link path and link name into separate strings. Assuming no spaces in the link path.
|
|
|
|
auto second_space_loc = link_tag.find_first_of(' ', 0); |
|
|
|
std::string file_name = link_tag.substr(0, second_space_loc - 1); |
|
|
|
std::string link_name = link_tag.substr(second_space_loc + 1); |
|
|
|
|
|
|
|
// Adds the link as a pair to a vector of links.
|
|
|
|
v_links_.push_back({file_name, link_name}); |
|
|
|
|
|
|
|
// Reformat the link tag to match specification.
|
|
|
|
line.replace(tag_loc, tag_len + 1, "<" + link_name + ">[" + to_string(curr_link) + "]"); |
|
|
|
} |
|
|
|
|
|
|
|
// Search for all paragraphs and breaks in the line and add them to the v_lines vector.
|
|
|
|
for(auto _tag = get_tag_(line); _tag != -1; _tag = get_tag_(line)) |
|
|
|
{ |
|
|
|
|
|
|
|
// Check to see if we have a paragraph tag, so we can add a blank line.
|
|
|
|
bool is_p = _tag == line.find("<p>"); |
|
|
|
int tag_len = is_p ? 3 : 4; |
|
|
|
|
|
|
|
// Separate out text that should stay in the previous line and text that goes in the new line. Delete the tag in the process.
|
|
|
|
std::string extra_text = line.substr(_tag + tag_len); |
|
|
|
line.erase(_tag); |
|
|
|
|
|
|
|
curr_line += line; |
|
|
|
|
|
|
|
// However, if the tag is located at the start of the file, there will be no data, so it shouldn't be added as it will be an empty line.
|
|
|
|
if(curr_line != "") |
|
|
|
{ |
|
|
|
v_lines_.push_back(curr_line); |
|
|
|
curr_line = ""; |
|
|
|
|
|
|
|
if(is_p) |
|
|
|
{ |
|
|
|
v_lines_.push_back(""); |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
// Move any remaining data on the line back into the line variable so that it can be processed.
|
|
|
|
line = extra_text; |
|
|
|
} |
|
|
|
curr_line += line; |
|
|
|
|
|
|
|
// TODO: What is this section
|
|
|
|
if (curr_line.length() > maximum_length_) { |
|
|
|
vector<string> v_split_line = split_line(curr_line); |
|
|
|
for (auto e: v_split_line) { |
|
|
|
cout << e << endl; |
|
|
|
v_lines_.push_back(e); |
|
|
|
} |
|
|
|
curr_line = ""; |
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
// Push the contents of curr_p as it has the last line in the file.
|
|
|
|
v_lines_.push_back(curr_line); |
|
|
|
|
|
|
|
ix_top_line_ = 0; |
|
|
|
file_name_ = new_file_name; |
|
|
|
|
|
|
|
return true; |
|
|
|
} |
|
|
|
|
|
|
|
bool Buffer::go(int link) |
|
|
|
{ |
|
|
|
bool Buffer::go(int link) |
|
|
|
{ |
|
|
|
string f_name = v_links_[link - 1].second; |
|
|
|
|
|
|
|
|
|
|
|
if(!open(f_name)) |
|
|
|
return false; |
|
|
|
return false; |
|
|
|
else |
|
|
|
return true; |
|
|
|
|
|
|
|
} |
|
|
|
return true; |
|
|
|
|
|
|
|
void Buffer::back() |
|
|
|
{ |
|
|
|
|
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
void Buffer::back() |
|
|
|
{ |
|
|
|
|
|
|
|
} |