diff options
| author | 2026-03-09 23:05:42 +0300 | |
|---|---|---|
| committer | 2026-03-09 23:05:42 +0300 | |
| commit | 00394a80501960ad26787b5c44435ed5ed67ad84 (patch) | |
| tree | 672eb918c552c858f32e9533dc3799af6b75769f /internal/ast/processor.go | |
| parent | '-' sign in words accepted (diff) | |
| download | conf-00394a80501960ad26787b5c44435ed5ed67ad84.tar.gz conf-00394a80501960ad26787b5c44435ed5ed67ad84.tar.bz2 conf-00394a80501960ad26787b5c44435ed5ed67ad84.tar.xz conf-00394a80501960ad26787b5c44435ed5ed67ad84.zip | |
Полностью переписал библиотеку. Перевёл с EBNF на PEG.v0.1.0
Diffstat (limited to '')
| -rw-r--r-- | internal/ast/processor.go | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/internal/ast/processor.go b/internal/ast/processor.go deleted file mode 100644 index 55dce59..0000000 --- a/internal/ast/processor.go +++ /dev/null @@ -1,119 +0,0 @@ -package ast - -import ( - "fmt" - "strconv" - - "go.neonxp.ru/conf/internal/parser" - "go.neonxp.ru/conf/model" -) - -func ToDoc(config *Node) (model.Body, error) { - if len(config.Children) < 1 { - return nil, fmt.Errorf("invalid ast tree") - } - - doc := config.Children[0] - - return processDoc(doc), nil -} - -func processDoc(docNode *Node) model.Body { - doc := make(model.Body, 0, len(docNode.Children)) - for _, stmt := range docNode.Children { - processStmt(&doc, stmt) - } - return doc -} - -func processStmt(doc *model.Body, stmt *Node) { - ident := extractIdent(stmt.Children[0]) - nodeBody := stmt.Children[1] - switch nodeBody.Symbol { - case parser.Command: - *doc = append(*doc, processDirective(ident, nodeBody)) - case parser.Assignment: - *doc = append(*doc, processSetting(ident, nodeBody)) - } -} - -func processDirective(ident string, directive *Node) *model.Directive { - result := &model.Directive{ - Name: ident, - } - - for _, child := range directive.Children { - // Can be arguments OR body OR both - switch child.Symbol { - case parser.Values: - result.Arguments = extractValues(child) - case parser.Body: - // Children[0] = '{', Children[1] = Body, Children[2] = '}' - result.Body = processDoc(child.Children[1]) - } - } - - return result -} - -func processSetting(ident string, setting *Node) *model.Setting { - result := &model.Setting{ - Key: ident, - Value: extractValues(setting.Children[1]), // Children[0] = '=', Children[1] = Values, Children[2] = ';' - } - - return result -} - -func extractIdent(word *Node) string { - return word.Children[0].Source -} - -func extractValues(args *Node) []model.Value { - result := make([]model.Value, len(args.Children)) - for i, child := range args.Children { - v, err := extractValue(child) - if err != nil { - result[i] = err - continue - } - result[i] = v - } - - return result -} - -func extractValue(value *Node) (any, error) { - v := value.Children[0] - s := v.Children[0].Source - switch v.Symbol { - case parser.Word: - return model.Word(s), nil - case parser.String: - return unquote(s), nil - case parser.Number: - d, err := strconv.Atoi(s) - if err == nil { - return d, nil - } - fl, err := strconv.ParseFloat(s, 32) - if err == nil { - return fl, nil - } - return nil, fmt.Errorf("invalid number: %s (%s)", v.Source, s) - case parser.Boolean: - return s == "true", nil - default: - return nil, fmt.Errorf("unknown value type: %s (%s)", v.Symbol, s) - } -} - -func unquote(str string) string { - if len(str) == 0 { - return "" - } - if str[0:1] == `"` || str[0:1] == "'" || str[0:1] == "`" { - return str[1 : len(str)-1] - } - return str -} |
