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🚀 Grammar-Aware Code Formatter: Structure through separation (supports Go, JavaScript, TypeScript, JSX, and TSX)
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formatter
code-formatter
javascript
typescript
jsx
tsx
refactor: Extract line pattern detection to patterns.go
+83
-81
-81
formatter.go
-81
formatter.go
···
6
6
"go/parser"
7
7
"go/token"
8
8
"reflect"
9
-
"regexp"
10
9
"strings"
11
10
)
12
-
13
-
var (
14
-
closingBracePattern = regexp.MustCompile(`^\s*[\}\)]`)
15
-
openingBracePattern = regexp.MustCompile(`[\{\(]\s*$`)
16
-
caseLabelPattern = regexp.MustCompile(`^\s*(case\s|default\s*:)|(^\s+.*:\s*$)`)
17
-
)
18
-
19
-
func isCommentOnly(sourceLine string) bool {
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-
for characterIndex := range len(sourceLine) {
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character := sourceLine[characterIndex]
22
-
23
-
if character == ' ' || character == '\t' {
24
-
continue
25
-
}
26
-
27
-
return len(sourceLine) > characterIndex+1 && sourceLine[characterIndex] == '/' && sourceLine[characterIndex+1] == '/'
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-
}
29
-
30
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return false
31
-
}
32
-
33
-
func isPackageLine(trimmedLine string) bool {
34
-
return len(trimmedLine) > 8 && trimmedLine[:8] == "package "
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-
}
36
-
37
-
func countRawStringDelimiters(sourceLine string) int {
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delimiterCount := 0
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insideDoubleQuotedString := false
40
-
insideCharacterLiteral := false
41
-
42
-
for characterIndex := 0; characterIndex < len(sourceLine); characterIndex++ {
43
-
character := sourceLine[characterIndex]
44
-
45
-
if insideCharacterLiteral {
46
-
if character == '\\' && characterIndex+1 < len(sourceLine) {
47
-
characterIndex++
48
-
49
-
continue
50
-
}
51
-
52
-
if character == '\'' {
53
-
insideCharacterLiteral = false
54
-
}
55
-
56
-
continue
57
-
}
58
-
59
-
if insideDoubleQuotedString {
60
-
if character == '\\' && characterIndex+1 < len(sourceLine) {
61
-
characterIndex++
62
-
63
-
continue
64
-
}
65
-
66
-
if character == '"' {
67
-
insideDoubleQuotedString = false
68
-
}
69
-
70
-
continue
71
-
}
72
-
73
-
if character == '\'' {
74
-
insideCharacterLiteral = true
75
-
76
-
continue
77
-
}
78
-
79
-
if character == '"' {
80
-
insideDoubleQuotedString = true
81
-
82
-
continue
83
-
}
84
-
85
-
if character == '`' {
86
-
delimiterCount++
87
-
}
88
-
}
89
-
90
-
return delimiterCount
91
-
}
92
11
93
12
type CommentMode int
94
13
+83
patterns.go
+83
patterns.go
···
1
+
package main
2
+
3
+
import "regexp"
4
+
5
+
var (
6
+
closingBracePattern = regexp.MustCompile(`^\s*[\}\)]`)
7
+
openingBracePattern = regexp.MustCompile(`[\{\(]\s*$`)
8
+
caseLabelPattern = regexp.MustCompile(`^\s*(case\s|default\s*:)|(^\s+.*:\s*$)`)
9
+
)
10
+
11
+
func isCommentOnly(sourceLine string) bool {
12
+
for characterIndex := range len(sourceLine) {
13
+
character := sourceLine[characterIndex]
14
+
15
+
if character == ' ' || character == '\t' {
16
+
continue
17
+
}
18
+
19
+
return len(sourceLine) > characterIndex+1 && sourceLine[characterIndex] == '/' && sourceLine[characterIndex+1] == '/'
20
+
}
21
+
22
+
return false
23
+
}
24
+
25
+
func isPackageLine(trimmedLine string) bool {
26
+
return len(trimmedLine) > 8 && trimmedLine[:8] == "package "
27
+
}
28
+
29
+
func countRawStringDelimiters(sourceLine string) int {
30
+
delimiterCount := 0
31
+
insideDoubleQuotedString := false
32
+
insideCharacterLiteral := false
33
+
34
+
for characterIndex := 0; characterIndex < len(sourceLine); characterIndex++ {
35
+
character := sourceLine[characterIndex]
36
+
37
+
if insideCharacterLiteral {
38
+
if character == '\\' && characterIndex+1 < len(sourceLine) {
39
+
characterIndex++
40
+
41
+
continue
42
+
}
43
+
44
+
if character == '\'' {
45
+
insideCharacterLiteral = false
46
+
}
47
+
48
+
continue
49
+
}
50
+
51
+
if insideDoubleQuotedString {
52
+
if character == '\\' && characterIndex+1 < len(sourceLine) {
53
+
characterIndex++
54
+
55
+
continue
56
+
}
57
+
58
+
if character == '"' {
59
+
insideDoubleQuotedString = false
60
+
}
61
+
62
+
continue
63
+
}
64
+
65
+
if character == '\'' {
66
+
insideCharacterLiteral = true
67
+
68
+
continue
69
+
}
70
+
71
+
if character == '"' {
72
+
insideDoubleQuotedString = true
73
+
74
+
continue
75
+
}
76
+
77
+
if character == '`' {
78
+
delimiterCount++
79
+
}
80
+
}
81
+
82
+
return delimiterCount
83
+
}