92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
#include "face_registry.hh"
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#include "exception.hh"
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namespace Kakoune
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{
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static Face parse_face(StringView facedesc)
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{
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auto bg_it = std::find(facedesc.begin(), facedesc.end(), ',');
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auto attr_it = std::find(facedesc.begin(), facedesc.end(), '+');
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if (bg_it != facedesc.end() and attr_it < bg_it)
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throw runtime_error("invalid face description, expected <fg>[,<bg>][+<attr>]");
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Face res;
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res.fg = str_to_color({facedesc.begin(), std::min(attr_it, bg_it)});
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if (bg_it != facedesc.end())
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res.bg = str_to_color({bg_it+1, attr_it});
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if (attr_it != facedesc.end())
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{
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for (++attr_it; attr_it != facedesc.end(); ++attr_it)
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{
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switch (*attr_it)
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{
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case 'u': res.attributes |= Attribute::Underline; break;
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case 'r': res.attributes |= Attribute::Reverse; break;
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case 'b': res.attributes |= Attribute::Bold; break;
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case 'B': res.attributes |= Attribute::Blink; break;
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case 'd': res.attributes |= Attribute::Dim; break;
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default: throw runtime_error("unknown face attribute '" + String(*attr_it) + "'");
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}
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}
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}
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return res;
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}
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Face FaceRegistry::operator[](const String& facedesc)
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{
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auto it = m_aliases.find(facedesc);
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if (it != m_aliases.end())
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return it->second;
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return parse_face(facedesc);
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}
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void FaceRegistry::register_alias(const String& name, const String& facedesc,
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bool override)
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{
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if (not override and m_aliases.find(name) != m_aliases.end())
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throw runtime_error("alias '" + name + "' already defined");
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if (name.empty() or
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find_if(name, [](char c){ return not isalnum(c); }) != name.end())
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throw runtime_error("invalid alias name");
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auto it = m_aliases.find(facedesc);
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m_aliases[name] = (it != m_aliases.end()) ?
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it->second : parse_face(facedesc);
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}
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CandidateList FaceRegistry::complete_alias_name(StringView prefix,
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ByteCount cursor_pos) const
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{
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CandidateList res;
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auto real_prefix = prefix.substr(0, cursor_pos);
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for (auto& alias : m_aliases)
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{
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if (prefix_match(alias.first, real_prefix))
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res.push_back(alias.first);
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}
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return res;
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}
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FaceRegistry::FaceRegistry()
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: m_aliases{
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{ "PrimarySelection", { Colors::Cyan, Colors::Blue } },
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{ "SecondarySelection", { Colors::Black, Colors::Blue } },
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{ "PrimaryCursor", { Colors::Black, Colors::White } },
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{ "SecondaryCursor", { Colors::Black, Colors::White } },
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{ "LineNumbers", { Colors::Default, Colors::Default } },
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{ "MenuForeground", { Colors::White, Colors::Blue } },
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{ "MenuBackground", { Colors::Blue, Colors::White } },
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{ "Information", { Colors::Black, Colors::Yellow } },
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{ "Error", { Colors::Black, Colors::Red } },
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{ "StatusLine", { Colors::Cyan, Colors::Default } },
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{ "StatusCursor", { Colors::Black, Colors::Cyan } },
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{ "Prompt", { Colors::Yellow, Colors::Default } },
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{ "MatchingChar", { Colors::Default, Colors::Default, Attribute::Underline } },
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{ "Search", { Colors::Default, Colors::Default, Attribute::Underline } },
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}
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{}
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}
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