#include "face_registry.hh" #include "containers.hh" #include "exception.hh" namespace Kakoune { static Face parse_face(StringView facedesc) { constexpr StringView invalid_face_error = "invalid face description, expected <fg>[,<bg>][+<attr>]"; auto bg_it = find(facedesc, ','); auto attr_it = find(facedesc, '+'); if (bg_it != facedesc.end() and (attr_it < bg_it or (bg_it + 1) == facedesc.end())) throw runtime_error(invalid_face_error.str()); if (attr_it != facedesc.end() and (attr_it + 1) == facedesc.end()) throw runtime_error(invalid_face_error.str()); Face res; res.fg = attr_it != facedesc.begin() ? str_to_color({facedesc.begin(), std::min(attr_it, bg_it)}) : Color::Default; if (bg_it != facedesc.end()) res.bg = bg_it+1 != attr_it ? str_to_color({bg_it+1, attr_it}) : Color::Default; if (attr_it != facedesc.end()) { for (++attr_it; attr_it != facedesc.end(); ++attr_it) { switch (*attr_it) { case 'e': res.attributes |= Attribute::Exclusive; break; case 'u': res.attributes |= Attribute::Underline; break; case 'r': res.attributes |= Attribute::Reverse; break; case 'b': res.attributes |= Attribute::Bold; break; case 'B': res.attributes |= Attribute::Blink; break; case 'd': res.attributes |= Attribute::Dim; break; case 'i': res.attributes |= Attribute::Italic; break; default: throw runtime_error(format("unknown face attribute '{}'", StringView{*attr_it})); } } } return res; } Face FaceRegistry::operator[](const String& facedesc) { auto it = m_aliases.find(facedesc); while (it != m_aliases.end()) { if (it->value.alias.empty()) return it->value.face; it = m_aliases.find(it->value.alias); } return parse_face(facedesc); } void FaceRegistry::register_alias(const String& name, const String& facedesc, bool override) { if (not override and m_aliases.find(name) != m_aliases.end()) throw runtime_error(format("alias '{}' already defined", name)); if (name.empty() or is_color_name(name) or std::any_of(name.begin(), name.end(), [](char c){ return not isalnum(c); })) throw runtime_error(format("invalid alias name: '{}'", name)); if (name == facedesc) throw runtime_error(format("cannot alias face '{}' to itself", name)); FaceOrAlias& alias = m_aliases[name]; auto it = m_aliases.find(facedesc); if (it != m_aliases.end()) { while (it != m_aliases.end()) { if (it->value.alias.empty()) break; if (it->value.alias == name) throw runtime_error("face cycle detected"); it = m_aliases.find(it->value.alias); } alias.alias = facedesc; } else { alias.alias = ""; alias.face = parse_face(facedesc); } } CandidateList FaceRegistry::complete_alias_name(StringView prefix, ByteCount cursor_pos) const { return complete(prefix, cursor_pos, m_aliases | transform(std::mem_fn(&AliasMap::Item::key))); } FaceRegistry::FaceRegistry() : m_aliases{ { "Default", Face{ Color::Default, Color::Default } }, { "PrimarySelection", Face{ Color::White, Color::Blue } }, { "SecondarySelection", Face{ Color::Black, Color::Blue } }, { "PrimaryCursor", Face{ Color::Black, Color::White } }, { "SecondaryCursor", Face{ Color::Black, Color::White } }, { "LineNumbers", Face{ Color::Default, Color::Default } }, { "LineNumberCursor", Face{ Color::Default, Color::Default, Attribute::Reverse } }, { "LineNumbersWrapped", Face{ Color::Default, Color::Default, Attribute::Italic } }, { "MenuForeground", Face{ Color::White, Color::Blue } }, { "MenuBackground", Face{ Color::Blue, Color::White } }, { "MenuInfo", Face{ Color::Cyan, Color::Default } }, { "Information", Face{ Color::Black, Color::Yellow } }, { "Error", Face{ Color::Black, Color::Red } }, { "StatusLine", Face{ Color::Cyan, Color::Default } }, { "StatusLineMode", Face{ Color::Yellow, Color::Default } }, { "StatusLineInfo", Face{ Color::Blue, Color::Default } }, { "StatusLineValue", Face{ Color::Green, Color::Default } }, { "StatusCursor", Face{ Color::Black, Color::Cyan } }, { "Prompt", Face{ Color::Yellow, Color::Default } }, { "MatchingChar", Face{ Color::Default, Color::Default, Attribute::Bold } }, { "BufferPadding", Face{ Color::Blue, Color::Default } }, { "Whitespace", Face{ Color::Default, Color::Default } }, } {} }