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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package confyg
import (
"bytes"
"errors"
"fmt"
"strconv"
"strings"
)
func Parse(file string, data []byte, r Reader, al Allower) (*FileSyntax, error) {
fs, err := parse(file, data)
if err != nil {
return nil, err
}
var errs bytes.Buffer
for _, x := range fs.Stmt {
switch x := x.(type) {
case *Line:
ok := al.Allow(x.Token[0], false)
if ok {
r.Read(&errs, fs, x, x.Token[0], x.Token[1:])
continue
}
fmt.Fprintf(&errs, "%s:%d: can't allow line verb %s", file, x.Start.Line, x.Token[0])
case *LineBlock:
if len(x.Token) > 1 {
fmt.Fprintf(&errs, "%s:%d: unknown block type: %s\n", file, x.Start.Line, strings.Join(x.Token, " "))
continue
}
ok := al.Allow(x.Token[0], true)
if ok {
for _, l := range x.Line {
r.Read(&errs, fs, l, x.Token[0], l.Token)
}
continue
}
fmt.Fprintf(&errs, "%s:%d: can't allow line block verb %s", file, x.Start.Line, x.Token[0])
}
}
if errs.Len() > 0 {
return nil, errors.New(strings.TrimRight(errs.String(), "\n"))
}
return fs, nil
}
func isDirectoryPath(ns string) bool {
// Because go.mod files can move from one system to another,
// we check all known path syntaxes, both Unix and Windows.
return strings.HasPrefix(ns, "./") || strings.HasPrefix(ns, "../") || strings.HasPrefix(ns, "/") ||
strings.HasPrefix(ns, `.\`) || strings.HasPrefix(ns, `..\`) || strings.HasPrefix(ns, `\`) ||
len(ns) >= 2 && ('A' <= ns[0] && ns[0] <= 'Z' || 'a' <= ns[0] && ns[0] <= 'z') && ns[1] == ':'
}
func isString(s string) bool {
return s != "" && s[0] == '"'
}
func parseString(s *string) (string, error) {
t, err := strconv.Unquote(*s)
if err != nil {
return "", err
}
*s = strconv.Quote(t)
return t, nil
}
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