-
Notifications
You must be signed in to change notification settings - Fork 5
/
converter.go
79 lines (64 loc) · 1.41 KB
/
converter.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
package translator
import (
"os"
"regexp"
"github.com/yhirose/go-peg"
)
// Converter -
type Converter struct {
parser *peg.Parser
grammar string
err error
}
// NewConverter -
func NewConverter(opts ...ConverterOption) (Converter, error) {
c := Converter{}
for i := range opts {
opts[i](&c)
}
if c.err != nil {
return c, c.err
}
if c.grammar == "" {
c.grammar = defaultGrammar
}
parser, err := peg.NewParser(c.grammar)
if err != nil {
return c, err
}
if err := parser.EnableAst(); err != nil {
return c, err
}
c.parser = parser
return c, nil
}
// FromFile -
func (c Converter) FromFile(filename string) (string, error) {
michelson, err := readFileToString(filename)
if err != nil {
return "", err
}
return c.FromString(michelson)
}
// FromString -
func (c Converter) FromString(input string) (string, error) {
input = removeComments(input)
ast, err := c.parser.ParseAndGetAst(input, nil)
if err != nil {
return "", err
}
return NewJSONTranslator().Translate(ast)
}
func readFileToString(filename string) (string, error) {
data, err := os.ReadFile(filename)
if err != nil {
return "", err
}
return string(data), nil
}
var oneLineComment = regexp.MustCompile("#[^\n]*")
var multiLineComment = regexp.MustCompile(`\/\*[^\*]*\*/`)
func removeComments(data string) string {
data = oneLineComment.ReplaceAllString(data, "")
return multiLineComment.ReplaceAllString(data, "")
}