54 lines
961 B
Go
54 lines
961 B
Go
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package main
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import (
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"errors"
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"io"
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"text/scanner"
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)
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type Submodule struct {
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Name string
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Path string
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}
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var SyntaxError error = errors.New("Syntax error")
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func (sub *Submodule) parseSubmoduleName(s *scanner.Scanner) error {
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s.Scan()
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if s.TokenText() != "submodule" {
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return SyntaxError
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}
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s.Scan()
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sub.Name = s.TokenText()
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l := len(sub.Name)
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if sub.Name[0] != '"' || sub.Name[l-1] != '"' || s.ErrorCount > 0 {
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return SyntaxError
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}
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sub.Name = sub.Name[1 : len(sub.Name)-1]
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s.Scan()
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if s.TokenText() != "]" {
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return SyntaxError
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}
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return nil
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}
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func ParseSubmodulesFile(reader io.Reader) ([]Submodule, error) {
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ret := make([]Submodule, 0, 100)
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s := new(scanner.Scanner)
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s.Init(reader)
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sub := &Submodule{}
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for tok := s.Scan(); tok != scanner.EOF; tok = s.Scan() {
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t := s.TokenText()
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if t == "[" {
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if err := sub.parseSubmoduleName(s); err != nil {
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return nil, err
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}
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}
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ret = append(ret, *sub)
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}
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return ret, nil
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}
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