81 lines
3.8 KiB
C++
81 lines
3.8 KiB
C++
#pragma once
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// SyntaxHighlighterPython.h helpers for SyntaxHighlighter.
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static void walkPython(TSNode node, const std::string& source,
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std::vector<HighlightSpan>& spans) {
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if (ts_node_is_null(node)) return;
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std::string type = nodeType(node);
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std::string text = nodeText(node, source);
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bool descend = true;
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// Leaf / terminal categorization
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if (type == "comment") {
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addSpan(spans, node, TokenCategory::Comment);
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descend = false;
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} else if (type == "string" || type == "concatenated_string") {
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addSpan(spans, node, TokenCategory::String);
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descend = false;
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} else if (type == "integer" || type == "float") {
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addSpan(spans, node, TokenCategory::Number);
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descend = false;
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} else if (type == "identifier") {
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// Context-dependent: function name, parameter, builtin, or plain
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TSNode parent = ts_node_parent(node);
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std::string parentType = ts_node_is_null(parent) ? "" : nodeType(parent);
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if (parentType == "function_definition") {
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TSNode nameField = ts_node_child_by_field_name(parent, "name", 4);
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if (!ts_node_is_null(nameField) &&
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ts_node_start_byte(nameField) == ts_node_start_byte(node)) {
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addSpan(spans, node, TokenCategory::Function);
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} else {
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addSpan(spans, node, TokenCategory::Identifier);
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}
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} else if (parentType == "parameters" || parentType == "default_parameter") {
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addSpan(spans, node, TokenCategory::Parameter);
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} else if (parentType == "call") {
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TSNode funcField = ts_node_child_by_field_name(parent, "function", 8);
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if (!ts_node_is_null(funcField) &&
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ts_node_start_byte(funcField) == ts_node_start_byte(node)) {
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addSpan(spans, node, TokenCategory::Function);
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} else {
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addSpan(spans, node, TokenCategory::Identifier);
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}
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} else if (parentType == "type") {
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addSpan(spans, node, TokenCategory::Type);
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} else if (isPythonBuiltin(text)) {
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addSpan(spans, node, TokenCategory::Builtin);
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} else {
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addSpan(spans, node, TokenCategory::Identifier);
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}
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descend = false;
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} else if (type == "type") {
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addSpan(spans, node, TokenCategory::Type);
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descend = false;
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} else if (!ts_node_is_named(node)) {
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// Anonymous/unnamed nodes are operators, keywords, punctuation
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if (isPythonKeyword(text)) {
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addSpan(spans, node, TokenCategory::Keyword);
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} else if (text == "(" || text == ")" || text == "[" || text == "]" ||
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text == "{" || text == "}" || text == ":" || text == "," ||
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text == "." || text == ";") {
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addSpan(spans, node, TokenCategory::Punctuation);
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} else if (text == "+" || text == "-" || text == "*" || text == "/" ||
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text == "%" || text == "=" || text == "==" || text == "!=" ||
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text == "<" || text == ">" || text == "<=" || text == ">=" ||
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text == "+=" || text == "-=" || text == "*=" || text == "/=" ||
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text == "**" || text == "//" || text == "->" || text == "@") {
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addSpan(spans, node, TokenCategory::Operator);
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}
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descend = false;
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}
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if (descend) {
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uint32_t count = ts_node_child_count(node);
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for (uint32_t i = 0; i < count; ++i) {
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walkPython(ts_node_child(node, i), source, spans);
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}
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}
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}
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