244 lines
7.3 KiB
C++
244 lines
7.3 KiB
C++
#pragma once
|
|
|
|
#include <fastdelegate/fastdelegate.hpp>
|
|
|
|
#include "common.hpp"
|
|
#include "components/logger.hpp"
|
|
#include "components/types.hpp"
|
|
#include "components/signals.hpp"
|
|
#include "utils/math.hpp"
|
|
#include "utils/string.hpp"
|
|
|
|
LEMONBUDDY_NS
|
|
|
|
DEFINE_ERROR(unrecognized_token);
|
|
|
|
class parser {
|
|
public:
|
|
/**
|
|
* Construct parser
|
|
*/
|
|
explicit parser(const bar_settings& bar) : m_bar(bar) {}
|
|
|
|
/**
|
|
* Parse input data
|
|
*/
|
|
void operator()(string data) { // {{{
|
|
size_t pos;
|
|
|
|
while (data.length()) {
|
|
if (data.compare(0, 2, "%{") == 0 && (pos = data.find("}")) != string::npos) {
|
|
codeblock(data.substr(2, pos - 2));
|
|
data.erase(0, pos + 1);
|
|
} else {
|
|
if ((pos = data.find("%{")) == string::npos)
|
|
pos = data.length();
|
|
data.erase(0, text(data.substr(0, pos)));
|
|
}
|
|
}
|
|
} // }}}
|
|
|
|
/**
|
|
* Parse contents in tag blocks, i.e: %{...}
|
|
*/
|
|
void codeblock(string data) { // {{{
|
|
size_t pos;
|
|
|
|
while (data.length()) {
|
|
data = string_util::ltrim(data, ' ');
|
|
|
|
if (data.empty())
|
|
break;
|
|
|
|
char tag = data[0];
|
|
string value;
|
|
|
|
// Remove the tag
|
|
data.erase(0, 1);
|
|
|
|
if ((pos = data.find_first_of(" }")) != string::npos)
|
|
value = data.substr(0, pos);
|
|
else
|
|
value = data;
|
|
|
|
switch (tag) {
|
|
case 'B':
|
|
// Ignore tag if it occurs again later in the same block
|
|
if (data.find(" B") == string::npos && !g_signals::parser::color_change.empty())
|
|
g_signals::parser::color_change.emit(gc::BG, parse_color(value, m_bar.background));
|
|
break;
|
|
|
|
case 'F':
|
|
// Ignore tag if it occurs again later in the same block
|
|
if (data.find(" F") == string::npos && !g_signals::parser::color_change.empty())
|
|
g_signals::parser::color_change.emit(gc::FG, parse_color(value, m_bar.foreground));
|
|
break;
|
|
|
|
case 'U':
|
|
// Ignore tag if it occurs again later in the same block
|
|
if (data.find(" U") == string::npos && !g_signals::parser::color_change.empty()) {
|
|
g_signals::parser::color_change.emit(gc::UL, parse_color(value, m_bar.linecolor));
|
|
g_signals::parser::color_change.emit(gc::OL, parse_color(value, m_bar.linecolor));
|
|
}
|
|
break;
|
|
|
|
case 'R':
|
|
if (!g_signals::parser::color_change.empty()) {
|
|
g_signals::parser::color_change.emit(gc::BG, m_bar.foreground);
|
|
g_signals::parser::color_change.emit(gc::FG, m_bar.background);
|
|
}
|
|
break;
|
|
|
|
case 'T':
|
|
if (data.find(" T") == string::npos && !g_signals::parser::font_change.empty())
|
|
g_signals::parser::font_change.emit(parse_fontindex(value));
|
|
break;
|
|
|
|
case 'O':
|
|
if (!g_signals::parser::pixel_offset.empty())
|
|
g_signals::parser::pixel_offset.emit(std::atoi(value.c_str()));
|
|
break;
|
|
|
|
case 'l':
|
|
if (!g_signals::parser::alignment_change.empty())
|
|
g_signals::parser::alignment_change.emit(alignment::LEFT);
|
|
break;
|
|
|
|
case 'c':
|
|
if (!g_signals::parser::alignment_change.empty())
|
|
g_signals::parser::alignment_change.emit(alignment::CENTER);
|
|
break;
|
|
|
|
case 'r':
|
|
if (!g_signals::parser::alignment_change.empty())
|
|
g_signals::parser::alignment_change.emit(alignment::RIGHT);
|
|
break;
|
|
|
|
case '+':
|
|
if (!g_signals::parser::attribute_set.empty())
|
|
g_signals::parser::attribute_set.emit(parse_attr(value[0]));
|
|
break;
|
|
|
|
case '-':
|
|
if (!g_signals::parser::attribute_unset.empty())
|
|
g_signals::parser::attribute_unset.emit(parse_attr(value[0]));
|
|
break;
|
|
|
|
case '!':
|
|
if (!g_signals::parser::attribute_toggle.empty())
|
|
g_signals::parser::attribute_toggle.emit(parse_attr(value[0]));
|
|
break;
|
|
|
|
case 'A':
|
|
if (isdigit(data[0])) {
|
|
value = parse_action_cmd(data);
|
|
if (!g_signals::parser::action_block_open.empty())
|
|
g_signals::parser::action_block_open.emit(parse_action_btn(data), value);
|
|
m_actions.push_back(data[0] - '0');
|
|
value += "0::"; // make sure we strip the correct length (btn+wrapping colons)
|
|
} else {
|
|
if (!g_signals::parser::action_block_close.empty())
|
|
g_signals::parser::action_block_close.emit(parse_action_btn(data));
|
|
m_actions.pop_back();
|
|
}
|
|
break;
|
|
|
|
default:
|
|
throw unrecognized_token(string{tag});
|
|
}
|
|
|
|
if (!data.empty())
|
|
data.erase(0, !value.empty() ? value.length() : 1);
|
|
}
|
|
} // }}}
|
|
|
|
/**
|
|
* Parse text strings
|
|
*/
|
|
size_t text(string data) { // {{{
|
|
uint8_t* utf = (uint8_t*)data.c_str();
|
|
|
|
// if (utf[0] < 0x80) {
|
|
// // grab all consecutive ascii chars
|
|
// size_t next_tag = data.find("%{");
|
|
// string sequence{(next_tag != string::npos) ? data.substr(0, next_tag) : data};
|
|
// size_t n = 0;
|
|
// while (sequence[n] != '\0' && static_cast<uint8_t>(sequence[n]) < 0x80 && ++n <= next_tag)
|
|
// ;
|
|
// g_signals::parser::ascii_text_write.emit(data.substr(0, n));
|
|
// return data.length();
|
|
// }
|
|
|
|
if (utf[0] < 0x80) {
|
|
g_signals::parser::ascii_text_write.emit(utf[0]);
|
|
return 1;
|
|
} else if ((utf[0] & 0xe0) == 0xc0) { // 2 byte utf-8 sequence
|
|
g_signals::parser::unicode_text_write.emit((utf[0] & 0x1f) << 6 | (utf[1] & 0x3f));
|
|
return 2;
|
|
} else if ((utf[0] & 0xf0) == 0xe0) { // 3 byte utf-8 sequence
|
|
g_signals::parser::unicode_text_write.emit(
|
|
(utf[0] & 0xf) << 12 | (utf[1] & 0x3f) << 6 | (utf[2] & 0x3f));
|
|
return 3;
|
|
} else if ((utf[0] & 0xf8) == 0xf0) { // 4 byte utf-8 sequence
|
|
g_signals::parser::unicode_text_write.emit(0xfffd);
|
|
return 4;
|
|
} else if ((utf[0] & 0xfc) == 0xf8) { // 5 byte utf-8 sequence
|
|
g_signals::parser::unicode_text_write.emit(0xfffd);
|
|
return 5;
|
|
} else if ((utf[0] & 0xfe) == 0xfc) { // 6 byte utf-8 sequence
|
|
g_signals::parser::unicode_text_write.emit(0xfffd);
|
|
return 6;
|
|
} else { // invalid utf-8 sequence
|
|
g_signals::parser::ascii_text_write.emit(utf[0]);
|
|
return 1;
|
|
}
|
|
} // }}}
|
|
|
|
protected:
|
|
color parse_color(string s, color fallback = color{0}) { // {{{
|
|
if (s.empty() || s == "-")
|
|
return fallback;
|
|
return color::parse(s, fallback);
|
|
} // }}}
|
|
|
|
int parse_fontindex(string s) { // {{{
|
|
if (s.empty() || s == "-")
|
|
return -1;
|
|
char* p = (char*)s.c_str();
|
|
return std::strtoul(p, &p, 10);
|
|
} // }}}
|
|
|
|
attribute parse_attr(const char s) { // {{{
|
|
switch (s) {
|
|
case 'o':
|
|
return attribute::o;
|
|
break;
|
|
case 'u':
|
|
return attribute::u;
|
|
break;
|
|
}
|
|
return attribute::NONE;
|
|
} // }}}
|
|
|
|
mousebtn parse_action_btn(string data) { // {{{
|
|
if (isdigit(data[0]))
|
|
return static_cast<mousebtn>(data[0] - '0');
|
|
else if (!m_actions.empty())
|
|
return static_cast<mousebtn>(m_actions.back());
|
|
else
|
|
return mousebtn::NONE;
|
|
} // }}}
|
|
|
|
string parse_action_cmd(string data) { // {{{
|
|
auto start = string_util::find_nth(data, 0, ":", 1);
|
|
auto end = string_util::find_nth(data, 0, ":", 2);
|
|
return string_util::trim(data.substr(start, end), ':');
|
|
} // }}}
|
|
|
|
private:
|
|
const bar_settings& m_bar;
|
|
vector<int> m_actions;
|
|
};
|
|
|
|
LEMONBUDDY_NS_END
|