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[chore]: Bump github.com/tdewolff/minify/v2 from 2.20.33 to 2.20.34 (#3017)

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4
go.mod
View file

@ -53,7 +53,7 @@ require (
github.com/superseriousbusiness/activity v1.6.0-gts.0.20240408131430-247f7f7110f0
github.com/superseriousbusiness/httpsig v1.2.0-SSB
github.com/superseriousbusiness/oauth2/v4 v4.3.2-SSB.0.20230227143000-f4900831d6c8
github.com/tdewolff/minify/v2 v2.20.33
github.com/tdewolff/minify/v2 v2.20.34
github.com/technologize/otel-go-contrib v1.1.1
github.com/tomnomnom/linkheader v0.0.0-20180905144013-02ca5825eb80
github.com/ulule/limiter/v3 v3.11.2
@ -198,7 +198,7 @@ require (
github.com/subosito/gotenv v1.6.0 // indirect
github.com/superseriousbusiness/go-jpeg-image-structure/v2 v2.0.0-20220321154430-d89a106fdabe // indirect
github.com/superseriousbusiness/go-png-image-structure/v2 v2.0.1-SSB // indirect
github.com/tdewolff/parse/v2 v2.7.14 // indirect
github.com/tdewolff/parse/v2 v2.7.15 // indirect
github.com/tetratelabs/wazero v1.7.3 // indirect
github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc // indirect
github.com/toqueteos/webbrowser v1.2.0 // indirect

8
go.sum
View file

@ -553,10 +553,10 @@ github.com/superseriousbusiness/httpsig v1.2.0-SSB h1:BinBGKbf2LSuVT5+MuH0XynHN9
github.com/superseriousbusiness/httpsig v1.2.0-SSB/go.mod h1:+rxfATjFaDoDIVaJOTSP0gj6UrbicaYPEptvCLC9F28=
github.com/superseriousbusiness/oauth2/v4 v4.3.2-SSB.0.20230227143000-f4900831d6c8 h1:nTIhuP157oOFcscuoK1kCme1xTeGIzztSw70lX9NrDQ=
github.com/superseriousbusiness/oauth2/v4 v4.3.2-SSB.0.20230227143000-f4900831d6c8/go.mod h1:uYC/W92oVRJ49Vh1GcvTqpeFqHi+Ovrl2sMllQWRAEo=
github.com/tdewolff/minify/v2 v2.20.33 h1:lZFesDQagd+zGxyC3fEO/X2jZWB8CrahKi77lNrgAAQ=
github.com/tdewolff/minify/v2 v2.20.33/go.mod h1:1TJni7+mATKu24cBQQpgwakrYRD27uC1/rdJOgdv8ns=
github.com/tdewolff/parse/v2 v2.7.14 h1:100KJ+QAO3PpMb3uUjzEU/NpmCdbBYz6KPmCIAfWpR8=
github.com/tdewolff/parse/v2 v2.7.14/go.mod h1:3FbJWZp3XT9OWVN3Hmfp0p/a08v4h8J9W1aghka0soA=
github.com/tdewolff/minify/v2 v2.20.34 h1:XueI6sQtgS7du45fyBCNkNfPQ9SINaYavMFNOxp37SA=
github.com/tdewolff/minify/v2 v2.20.34/go.mod h1:L1VYef/jwKw6Wwyk5A+T0mBjjn3mMPgmjjA688RNsxU=
github.com/tdewolff/parse/v2 v2.7.15 h1:hysDXtdGZIRF5UZXwpfn3ZWRbm+ru4l53/ajBRGpCTw=
github.com/tdewolff/parse/v2 v2.7.15/go.mod h1:3FbJWZp3XT9OWVN3Hmfp0p/a08v4h8J9W1aghka0soA=
github.com/tdewolff/test v1.0.11-0.20231101010635-f1265d231d52/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYqeK4QE=
github.com/tdewolff/test v1.0.11-0.20240106005702-7de5f7df4739 h1:IkjBCtQOOjIn03u/dMQK9g+Iw9ewps4mCl1nB8Sscbo=
github.com/tdewolff/test v1.0.11-0.20240106005702-7de5f7df4739/go.mod h1:XPuWBzvdUzhCuxWO1ojpXsyzsA5bFoS3tO/Q3kFuTG8=

170
vendor/github.com/tdewolff/parse/v2/css/README.md generated vendored
View file

@ -1,170 +0,0 @@
# CSS [![API reference](https://img.shields.io/badge/godoc-reference-5272B4)](https://pkg.go.dev/github.com/tdewolff/parse/v2/css?tab=doc)
This package is a CSS3 lexer and parser written in [Go][1]. Both follow the specification at [CSS Syntax Module Level 3](http://www.w3.org/TR/css-syntax-3/). The lexer takes an io.Reader and converts it into tokens until the EOF. The parser returns a parse tree of the full io.Reader input stream, but the low-level `Next` function can be used for stream parsing to returns grammar units until the EOF.
## Installation
Run the following command
go get -u github.com/tdewolff/parse/v2/css
or add the following import and run project with `go get`
import "github.com/tdewolff/parse/v2/css"
## Lexer
### Usage
The following initializes a new Lexer with io.Reader `r`:
``` go
l := css.NewLexer(parse.NewInput(r))
```
To tokenize until EOF an error, use:
``` go
for {
tt, text := l.Next()
switch tt {
case css.ErrorToken:
// error or EOF set in l.Err()
return
// ...
}
}
```
All tokens (see [CSS Syntax Module Level 3](http://www.w3.org/TR/css3-syntax/)):
``` go
ErrorToken // non-official token, returned when errors occur
IdentToken
FunctionToken // rgb( rgba( ...
AtKeywordToken // @abc
HashToken // #abc
StringToken
BadStringToken
URLToken // url(
BadURLToken
DelimToken // any unmatched character
NumberToken // 5
PercentageToken // 5%
DimensionToken // 5em
UnicodeRangeToken
IncludeMatchToken // ~=
DashMatchToken // |=
PrefixMatchToken // ^=
SuffixMatchToken // $=
SubstringMatchToken // *=
ColumnToken // ||
WhitespaceToken
CDOToken // <!--
CDCToken // -->
ColonToken
SemicolonToken
CommaToken
BracketToken // ( ) [ ] { }, all bracket tokens use this, Data() can distinguish between the brackets
CommentToken // non-official token
```
### Examples
``` go
package main
import (
"os"
"github.com/tdewolff/parse/v2/css"
)
// Tokenize CSS3 from stdin.
func main() {
l := css.NewLexer(parse.NewInput(os.Stdin))
for {
tt, text := l.Next()
switch tt {
case css.ErrorToken:
if l.Err() != io.EOF {
fmt.Println("Error on line", l.Line(), ":", l.Err())
}
return
case css.IdentToken:
fmt.Println("Identifier", string(text))
case css.NumberToken:
fmt.Println("Number", string(text))
// ...
}
}
}
```
## Parser
### Usage
The following creates a new Parser.
``` go
// true because this is the content of an inline style attribute
p := css.NewParser(parse.NewInput(bytes.NewBufferString("color: red;")), true)
```
To iterate over the stylesheet, use:
``` go
for {
gt, _, data := p.Next()
if gt == css.ErrorGrammar {
break
}
// ...
}
```
All grammar units returned by `Next`:
``` go
ErrorGrammar
AtRuleGrammar
EndAtRuleGrammar
RulesetGrammar
EndRulesetGrammar
DeclarationGrammar
TokenGrammar
```
### Examples
``` go
package main
import (
"bytes"
"fmt"
"github.com/tdewolff/parse/v2/css"
)
func main() {
// true because this is the content of an inline style attribute
p := css.NewParser(parse.NewInput(bytes.NewBufferString("color: red;")), true)
out := ""
for {
gt, _, data := p.Next()
if gt == css.ErrorGrammar {
break
} else if gt == css.AtRuleGrammar || gt == css.BeginAtRuleGrammar || gt == css.BeginRulesetGrammar || gt == css.DeclarationGrammar {
out += string(data)
if gt == css.DeclarationGrammar {
out += ":"
}
for _, val := range p.Values() {
out += string(val.Data)
}
if gt == css.BeginAtRuleGrammar || gt == css.BeginRulesetGrammar {
out += "{"
} else if gt == css.AtRuleGrammar || gt == css.DeclarationGrammar {
out += ";"
}
} else {
out += string(data)
}
}
fmt.Println(out)
}
```
## License
Released under the [MIT license](https://github.com/tdewolff/parse/blob/master/LICENSE.md).
[1]: http://golang.org/ "Go Language"

75
vendor/github.com/tdewolff/parse/v2/css/hash.go generated vendored
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@ -1,75 +0,0 @@
package css
// generated by hasher -type=Hash -file=hash.go; DO NOT EDIT, except for adding more constants to the list and rerun go generate
// uses github.com/tdewolff/hasher
//go:generate hasher -type=Hash -file=hash.go
// Hash defines perfect hashes for a predefined list of strings
type Hash uint32
// Unique hash definitions to be used instead of strings
const (
Document Hash = 0x8 // document
Font_Face Hash = 0x809 // font-face
Keyframes Hash = 0x1109 // keyframes
Media Hash = 0x2105 // media
Page Hash = 0x2604 // page
Supports Hash = 0x1908 // supports
)
// String returns the hash' name.
func (i Hash) String() string {
start := uint32(i >> 8)
n := uint32(i & 0xff)
if start+n > uint32(len(_Hash_text)) {
return ""
}
return _Hash_text[start : start+n]
}
// ToHash returns the hash whose name is s. It returns zero if there is no
// such hash. It is case sensitive.
func ToHash(s []byte) Hash {
if len(s) == 0 || len(s) > _Hash_maxLen {
return 0
}
h := uint32(_Hash_hash0)
for i := 0; i < len(s); i++ {
h ^= uint32(s[i])
h *= 16777619
}
if i := _Hash_table[h&uint32(len(_Hash_table)-1)]; int(i&0xff) == len(s) {
t := _Hash_text[i>>8 : i>>8+i&0xff]
for i := 0; i < len(s); i++ {
if t[i] != s[i] {
goto NEXT
}
}
return i
}
NEXT:
if i := _Hash_table[(h>>16)&uint32(len(_Hash_table)-1)]; int(i&0xff) == len(s) {
t := _Hash_text[i>>8 : i>>8+i&0xff]
for i := 0; i < len(s); i++ {
if t[i] != s[i] {
return 0
}
}
return i
}
return 0
}
const _Hash_hash0 = 0x9acb0442
const _Hash_maxLen = 9
const _Hash_text = "documentfont-facekeyframesupportsmediapage"
var _Hash_table = [1 << 3]Hash{
0x1: 0x2604, // page
0x2: 0x2105, // media
0x3: 0x809, // font-face
0x5: 0x1109, // keyframes
0x6: 0x1908, // supports
0x7: 0x8, // document
}

698
vendor/github.com/tdewolff/parse/v2/css/lex.go generated vendored
View file

@ -1,698 +0,0 @@
// Package css is a CSS3 lexer and parser following the specifications at http://www.w3.org/TR/css-syntax-3/.
package css
// TODO: \uFFFD replacement character for NULL bytes in strings for example, or atleast don't end the string early
import (
"bytes"
"io"
"strconv"
"github.com/tdewolff/parse/v2"
)
// TokenType determines the type of token, eg. a number or a semicolon.
type TokenType uint32
// TokenType values.
const (
ErrorToken TokenType = iota // extra token when errors occur
IdentToken
FunctionToken // rgb( rgba( ...
AtKeywordToken // @abc
HashToken // #abc
StringToken
BadStringToken
URLToken
BadURLToken
DelimToken // any unmatched character
NumberToken // 5
PercentageToken // 5%
DimensionToken // 5em
UnicodeRangeToken // U+554A
IncludeMatchToken // ~=
DashMatchToken // |=
PrefixMatchToken // ^=
SuffixMatchToken // $=
SubstringMatchToken // *=
ColumnToken // ||
WhitespaceToken // space \t \r \n \f
CDOToken // <!--
CDCToken // -->
ColonToken // :
SemicolonToken // ;
CommaToken // ,
LeftBracketToken // [
RightBracketToken // ]
LeftParenthesisToken // (
RightParenthesisToken // )
LeftBraceToken // {
RightBraceToken // }
CommentToken // extra token for comments
EmptyToken
CustomPropertyNameToken
CustomPropertyValueToken
)
// String returns the string representation of a TokenType.
func (tt TokenType) String() string {
switch tt {
case ErrorToken:
return "Error"
case IdentToken:
return "Ident"
case FunctionToken:
return "Function"
case AtKeywordToken:
return "AtKeyword"
case HashToken:
return "Hash"
case StringToken:
return "String"
case BadStringToken:
return "BadString"
case URLToken:
return "URL"
case BadURLToken:
return "BadURL"
case DelimToken:
return "Delim"
case NumberToken:
return "Number"
case PercentageToken:
return "Percentage"
case DimensionToken:
return "Dimension"
case UnicodeRangeToken:
return "UnicodeRange"
case IncludeMatchToken:
return "IncludeMatch"
case DashMatchToken:
return "DashMatch"
case PrefixMatchToken:
return "PrefixMatch"
case SuffixMatchToken:
return "SuffixMatch"
case SubstringMatchToken:
return "SubstringMatch"
case ColumnToken:
return "Column"
case WhitespaceToken:
return "Whitespace"
case CDOToken:
return "CDO"
case CDCToken:
return "CDC"
case ColonToken:
return "Colon"
case SemicolonToken:
return "Semicolon"
case CommaToken:
return "Comma"
case LeftBracketToken:
return "LeftBracket"
case RightBracketToken:
return "RightBracket"
case LeftParenthesisToken:
return "LeftParenthesis"
case RightParenthesisToken:
return "RightParenthesis"
case LeftBraceToken:
return "LeftBrace"
case RightBraceToken:
return "RightBrace"
case CommentToken:
return "Comment"
case EmptyToken:
return "Empty"
case CustomPropertyNameToken:
return "CustomPropertyName"
case CustomPropertyValueToken:
return "CustomPropertyValue"
}
return "Invalid(" + strconv.Itoa(int(tt)) + ")"
}
////////////////////////////////////////////////////////////////
// Lexer is the state for the lexer.
type Lexer struct {
r *parse.Input
}
// NewLexer returns a new Lexer for a given io.Reader.
func NewLexer(r *parse.Input) *Lexer {
return &Lexer{
r: r,
}
}
// Err returns the error encountered during lexing, this is often io.EOF but also other errors can be returned.
func (l *Lexer) Err() error {
return l.r.Err()
}
// Next returns the next Token. It returns ErrorToken when an error was encountered. Using Err() one can retrieve the error message.
func (l *Lexer) Next() (TokenType, []byte) {
switch l.r.Peek(0) {
case ' ', '\t', '\n', '\r', '\f':
l.r.Move(1)
for l.consumeWhitespace() {
}
return WhitespaceToken, l.r.Shift()
case ':':
l.r.Move(1)
return ColonToken, l.r.Shift()
case ';':
l.r.Move(1)
return SemicolonToken, l.r.Shift()
case ',':
l.r.Move(1)
return CommaToken, l.r.Shift()
case '(', ')', '[', ']', '{', '}':
if t := l.consumeBracket(); t != ErrorToken {
return t, l.r.Shift()
}
case '#':
if l.consumeHashToken() {
return HashToken, l.r.Shift()
}
case '"', '\'':
if t := l.consumeString(); t != ErrorToken {
return t, l.r.Shift()
}
case '.', '+':
if t := l.consumeNumeric(); t != ErrorToken {
return t, l.r.Shift()
}
case '-':
if t := l.consumeNumeric(); t != ErrorToken {
return t, l.r.Shift()
} else if t := l.consumeIdentlike(); t != ErrorToken {
return t, l.r.Shift()
} else if l.consumeCDCToken() {
return CDCToken, l.r.Shift()
} else if l.consumeCustomVariableToken() {
return CustomPropertyNameToken, l.r.Shift()
}
case '@':
if l.consumeAtKeywordToken() {
return AtKeywordToken, l.r.Shift()
}
case '$', '*', '^', '~':
if t := l.consumeMatch(); t != ErrorToken {
return t, l.r.Shift()
}
case '/':
if l.consumeComment() {
return CommentToken, l.r.Shift()
}
case '<':
if l.consumeCDOToken() {
return CDOToken, l.r.Shift()
}
case '\\':
if t := l.consumeIdentlike(); t != ErrorToken {
return t, l.r.Shift()
}
case 'u', 'U':
if l.consumeUnicodeRangeToken() {
return UnicodeRangeToken, l.r.Shift()
} else if t := l.consumeIdentlike(); t != ErrorToken {
return t, l.r.Shift()
}
case '|':
if t := l.consumeMatch(); t != ErrorToken {
return t, l.r.Shift()
} else if l.consumeColumnToken() {
return ColumnToken, l.r.Shift()
}
case 0:
if l.r.Err() != nil {
return ErrorToken, nil
}
default:
if t := l.consumeNumeric(); t != ErrorToken {
return t, l.r.Shift()
} else if t := l.consumeIdentlike(); t != ErrorToken {
return t, l.r.Shift()
}
}
// can't be rune because consumeIdentlike consumes that as an identifier
l.r.Move(1)
return DelimToken, l.r.Shift()
}
////////////////////////////////////////////////////////////////
/*
The following functions follow the railroad diagrams in http://www.w3.org/TR/css3-syntax/
*/
func (l *Lexer) consumeByte(c byte) bool {
if l.r.Peek(0) == c {
l.r.Move(1)
return true
}
return false
}
func (l *Lexer) consumeComment() bool {
if l.r.Peek(0) != '/' || l.r.Peek(1) != '*' {
return false
}
l.r.Move(2)
for {
c := l.r.Peek(0)
if c == 0 && l.r.Err() != nil {
break
} else if c == '*' && l.r.Peek(1) == '/' {
l.r.Move(2)
return true
}
l.r.Move(1)
}
return true
}
func (l *Lexer) consumeNewline() bool {
c := l.r.Peek(0)
if c == '\n' || c == '\f' {
l.r.Move(1)
return true
} else if c == '\r' {
if l.r.Peek(1) == '\n' {
l.r.Move(2)
} else {
l.r.Move(1)
}
return true
}
return false
}
func (l *Lexer) consumeWhitespace() bool {
c := l.r.Peek(0)
if c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f' {
l.r.Move(1)
return true
}
return false
}
func (l *Lexer) consumeDigit() bool {
c := l.r.Peek(0)
if c >= '0' && c <= '9' {
l.r.Move(1)
return true
}
return false
}
func (l *Lexer) consumeHexDigit() bool {
c := l.r.Peek(0)
if (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F') {
l.r.Move(1)
return true
}
return false
}
func (l *Lexer) consumeEscape() bool {
if l.r.Peek(0) != '\\' {
return false
}
mark := l.r.Pos()
l.r.Move(1)
if l.consumeNewline() {
l.r.Rewind(mark)
return false
} else if l.consumeHexDigit() {
for k := 1; k < 6; k++ {
if !l.consumeHexDigit() {
break
}
}
l.consumeWhitespace()
return true
} else {
c := l.r.Peek(0)
if c >= 0xC0 {
_, n := l.r.PeekRune(0)
l.r.Move(n)
return true
} else if c == 0 && l.r.Err() != nil {
l.r.Rewind(mark)
return false
}
}
l.r.Move(1)
return true
}
func (l *Lexer) consumeIdentToken() bool {
mark := l.r.Pos()
if l.r.Peek(0) == '-' {
l.r.Move(1)
}
c := l.r.Peek(0)
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c >= 0x80) {
if c != '\\' || !l.consumeEscape() {
l.r.Rewind(mark)
return false
}
} else {
l.r.Move(1)
}
for {
c := l.r.Peek(0)
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_' || c == '-' || c >= 0x80) {
if c != '\\' || !l.consumeEscape() {
break
}
} else {
l.r.Move(1)
}
}
return true
}
// support custom variables, https://www.w3.org/TR/css-variables-1/
func (l *Lexer) consumeCustomVariableToken() bool {
// expect to be on a '-'
l.r.Move(1)
if l.r.Peek(0) != '-' {
l.r.Move(-1)
return false
}
if !l.consumeIdentToken() {
l.r.Move(-1)
return false
}
return true
}
func (l *Lexer) consumeAtKeywordToken() bool {
// expect to be on an '@'
l.r.Move(1)
if !l.consumeIdentToken() {
l.r.Move(-1)
return false
}
return true
}
func (l *Lexer) consumeHashToken() bool {
// expect to be on a '#'
mark := l.r.Pos()
l.r.Move(1)
c := l.r.Peek(0)
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_' || c == '-' || c >= 0x80) {
if c != '\\' || !l.consumeEscape() {
l.r.Rewind(mark)
return false
}
} else {
l.r.Move(1)
}
for {
c := l.r.Peek(0)
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_' || c == '-' || c >= 0x80) {
if c != '\\' || !l.consumeEscape() {
break
}
} else {
l.r.Move(1)
}
}
return true
}
func (l *Lexer) consumeNumberToken() bool {
mark := l.r.Pos()
c := l.r.Peek(0)
if c == '+' || c == '-' {
l.r.Move(1)
}
firstDigit := l.consumeDigit()
if firstDigit {
for l.consumeDigit() {
}
}
if l.r.Peek(0) == '.' {
l.r.Move(1)
if l.consumeDigit() {
for l.consumeDigit() {
}
} else if firstDigit {
// . could belong to the next token
l.r.Move(-1)
return true
} else {
l.r.Rewind(mark)
return false
}
} else if !firstDigit {
l.r.Rewind(mark)
return false
}
mark = l.r.Pos()
c = l.r.Peek(0)
if c == 'e' || c == 'E' {
l.r.Move(1)
c = l.r.Peek(0)
if c == '+' || c == '-' {
l.r.Move(1)
}
if !l.consumeDigit() {
// e could belong to next token
l.r.Rewind(mark)
return true
}
for l.consumeDigit() {
}
}
return true
}
func (l *Lexer) consumeUnicodeRangeToken() bool {
c := l.r.Peek(0)
if (c != 'u' && c != 'U') || l.r.Peek(1) != '+' {
return false
}
mark := l.r.Pos()
l.r.Move(2)
// consume up to 6 hexDigits
k := 0
for l.consumeHexDigit() {
k++
}
// either a minus or a question mark or the end is expected
if l.consumeByte('-') {
if k == 0 || 6 < k {
l.r.Rewind(mark)
return false
}
// consume another up to 6 hexDigits
if l.consumeHexDigit() {
k = 1
for l.consumeHexDigit() {
k++
}
} else {
l.r.Rewind(mark)
return false
}
} else if l.consumeByte('?') {
// could be filled up to 6 characters with question marks or else regular hexDigits
k++
for l.consumeByte('?') {
k++
}
}
if k == 0 || 6 < k {
l.r.Rewind(mark)
return false
}
return true
}
func (l *Lexer) consumeColumnToken() bool {
if l.r.Peek(0) == '|' && l.r.Peek(1) == '|' {
l.r.Move(2)
return true
}
return false
}
func (l *Lexer) consumeCDOToken() bool {
if l.r.Peek(0) == '<' && l.r.Peek(1) == '!' && l.r.Peek(2) == '-' && l.r.Peek(3) == '-' {
l.r.Move(4)
return true
}
return false
}
func (l *Lexer) consumeCDCToken() bool {
if l.r.Peek(0) == '-' && l.r.Peek(1) == '-' && l.r.Peek(2) == '>' {
l.r.Move(3)
return true
}
return false
}
////////////////////////////////////////////////////////////////
// consumeMatch consumes any MatchToken.
func (l *Lexer) consumeMatch() TokenType {
if l.r.Peek(1) == '=' {
switch l.r.Peek(0) {
case '~':
l.r.Move(2)
return IncludeMatchToken
case '|':
l.r.Move(2)
return DashMatchToken
case '^':
l.r.Move(2)
return PrefixMatchToken
case '$':
l.r.Move(2)
return SuffixMatchToken
case '*':
l.r.Move(2)
return SubstringMatchToken
}
}
return ErrorToken
}
// consumeBracket consumes any bracket token.
func (l *Lexer) consumeBracket() TokenType {
switch l.r.Peek(0) {
case '(':
l.r.Move(1)
return LeftParenthesisToken
case ')':
l.r.Move(1)
return RightParenthesisToken
case '[':
l.r.Move(1)
return LeftBracketToken
case ']':
l.r.Move(1)
return RightBracketToken
case '{':
l.r.Move(1)
return LeftBraceToken
case '}':
l.r.Move(1)
return RightBraceToken
}
return ErrorToken
}
// consumeNumeric consumes NumberToken, PercentageToken or DimensionToken.
func (l *Lexer) consumeNumeric() TokenType {
if l.consumeNumberToken() {
if l.consumeByte('%') {
return PercentageToken
} else if l.consumeIdentToken() {
return DimensionToken
}
return NumberToken
}
return ErrorToken
}
// consumeString consumes a string and may return BadStringToken when a newline is encountered.
func (l *Lexer) consumeString() TokenType {
// assume to be on " or '
delim := l.r.Peek(0)
l.r.Move(1)
for {
c := l.r.Peek(0)
if c == 0 && l.r.Err() != nil {
break
} else if c == '\n' || c == '\r' || c == '\f' {
l.r.Move(1)
return BadStringToken
} else if c == delim {
l.r.Move(1)
break
} else if c == '\\' {
if !l.consumeEscape() {
// either newline or EOF after backslash
l.r.Move(1)
l.consumeNewline()
}
} else {
l.r.Move(1)
}
}
return StringToken
}
func (l *Lexer) consumeUnquotedURL() bool {
for {
c := l.r.Peek(0)
if c == 0 && l.r.Err() != nil || c == ')' {
break
} else if c == '"' || c == '\'' || c == '(' || c == '\\' || c == ' ' || c <= 0x1F || c == 0x7F {
if c != '\\' || !l.consumeEscape() {
return false
}
} else {
l.r.Move(1)
}
}
return true
}
// consumeRemnantsBadUrl consumes bytes of a BadUrlToken so that normal tokenization may continue.
func (l *Lexer) consumeRemnantsBadURL() {
for {
if l.consumeByte(')') || l.r.Err() != nil {
break
} else if !l.consumeEscape() {
l.r.Move(1)
}
}
}
// consumeIdentlike consumes IdentToken, FunctionToken or UrlToken.
func (l *Lexer) consumeIdentlike() TokenType {
if l.consumeIdentToken() {
if l.r.Peek(0) != '(' {
return IdentToken
} else if !parse.EqualFold(bytes.Replace(l.r.Lexeme(), []byte{'\\'}, nil, -1), []byte{'u', 'r', 'l'}) {
l.r.Move(1)
return FunctionToken
}
l.r.Move(1)
// consume url
for l.consumeWhitespace() {
}
if c := l.r.Peek(0); c == '"' || c == '\'' {
if l.consumeString() == BadStringToken {
l.consumeRemnantsBadURL()
return BadURLToken
}
} else if !l.consumeUnquotedURL() && !l.consumeWhitespace() { // if unquoted URL fails due to encountering whitespace, continue
l.consumeRemnantsBadURL()
return BadURLToken
}
for l.consumeWhitespace() {
}
if !l.consumeByte(')') && l.r.Err() != io.EOF {
l.consumeRemnantsBadURL()
return BadURLToken
}
return URLToken
}
return ErrorToken
}

493
vendor/github.com/tdewolff/parse/v2/css/parse.go generated vendored
View file

@ -1,493 +0,0 @@
package css
import (
"bytes"
"fmt"
"strconv"
"github.com/tdewolff/parse/v2"
"github.com/tdewolff/parse/v2/buffer"
)
var wsBytes = []byte(" ")
var endBytes = []byte("}")
var emptyBytes = []byte("")
// GrammarType determines the type of grammar.
type GrammarType uint32
// GrammarType values.
const (
ErrorGrammar GrammarType = iota // extra token when errors occur
CommentGrammar
AtRuleGrammar
BeginAtRuleGrammar
EndAtRuleGrammar
QualifiedRuleGrammar
BeginRulesetGrammar
EndRulesetGrammar
DeclarationGrammar
TokenGrammar
CustomPropertyGrammar
)
// String returns the string representation of a GrammarType.
func (tt GrammarType) String() string {
switch tt {
case ErrorGrammar:
return "Error"
case CommentGrammar:
return "Comment"
case AtRuleGrammar:
return "AtRule"
case BeginAtRuleGrammar:
return "BeginAtRule"
case EndAtRuleGrammar:
return "EndAtRule"
case QualifiedRuleGrammar:
return "QualifiedRule"
case BeginRulesetGrammar:
return "BeginRuleset"
case EndRulesetGrammar:
return "EndRuleset"
case DeclarationGrammar:
return "Declaration"
case TokenGrammar:
return "Token"
case CustomPropertyGrammar:
return "CustomProperty"
}
return "Invalid(" + strconv.Itoa(int(tt)) + ")"
}
////////////////////////////////////////////////////////////////
// State is the state function the parser currently is in.
type State func(*Parser) GrammarType
// Token is a single TokenType and its associated data.
type Token struct {
TokenType
Data []byte
}
func (t Token) String() string {
return t.TokenType.String() + "('" + string(t.Data) + "')"
}
// Parser is the state for the parser.
type Parser struct {
l *Lexer
state []State
err string
errPos int
buf []Token
level int
data []byte
tt TokenType
keepWS bool
prevWS bool
prevEnd bool
prevComment bool
}
// NewParser returns a new CSS parser from an io.Reader. isInline specifies whether this is an inline style attribute.
func NewParser(r *parse.Input, isInline bool) *Parser {
l := NewLexer(r)
p := &Parser{
l: l,
state: make([]State, 0, 4),
}
if isInline {
p.state = append(p.state, (*Parser).parseDeclarationList)
} else {
p.state = append(p.state, (*Parser).parseStylesheet)
}
return p
}
// HasParseError returns true if there is a parse error (and not a read error).
func (p *Parser) HasParseError() bool {
return p.err != ""
}
// Err returns the error encountered during parsing, this is often io.EOF but also other errors can be returned.
func (p *Parser) Err() error {
if p.err != "" {
r := buffer.NewReader(p.l.r.Bytes())
return parse.NewError(r, p.errPos, p.err)
}
return p.l.Err()
}
// Next returns the next Grammar. It returns ErrorGrammar when an error was encountered. Using Err() one can retrieve the error message.
func (p *Parser) Next() (GrammarType, TokenType, []byte) {
p.err = ""
if p.prevEnd {
p.tt, p.data = RightBraceToken, endBytes
p.prevEnd = false
} else {
p.tt, p.data = p.popToken(true)
}
gt := p.state[len(p.state)-1](p)
return gt, p.tt, p.data
}
// Offset return offset for current Grammar
func (p *Parser) Offset() int {
return p.l.r.Offset()
}
// Values returns a slice of Tokens for the last Grammar. Only AtRuleGrammar, BeginAtRuleGrammar, BeginRulesetGrammar and Declaration will return the at-rule components, ruleset selector and declaration values respectively.
func (p *Parser) Values() []Token {
return p.buf
}
func (p *Parser) popToken(allowComment bool) (TokenType, []byte) {
p.prevWS = false
p.prevComment = false
tt, data := p.l.Next()
for !p.keepWS && tt == WhitespaceToken || tt == CommentToken {
if tt == WhitespaceToken {
p.prevWS = true
} else {
p.prevComment = true
if allowComment && len(p.state) == 1 {
break
}
}
tt, data = p.l.Next()
}
return tt, data
}
func (p *Parser) initBuf() {
p.buf = p.buf[:0]
}
func (p *Parser) pushBuf(tt TokenType, data []byte) {
p.buf = append(p.buf, Token{tt, data})
}
////////////////////////////////////////////////////////////////
func (p *Parser) parseStylesheet() GrammarType {
if p.tt == CDOToken || p.tt == CDCToken {
return TokenGrammar
} else if p.tt == AtKeywordToken {
return p.parseAtRule()
} else if p.tt == CommentToken {
return CommentGrammar
} else if p.tt == ErrorToken {
return ErrorGrammar
}
return p.parseQualifiedRule()
}
func (p *Parser) parseDeclarationList() GrammarType {
if p.tt == CommentToken {
p.tt, p.data = p.popToken(false)
}
for p.tt == SemicolonToken {
p.tt, p.data = p.popToken(false)
}
// IE hack: *color:red;
if p.tt == DelimToken && p.data[0] == '*' {
tt, data := p.popToken(false)
p.tt = tt
p.data = append(p.data, data...)
}
if p.tt == ErrorToken {
return ErrorGrammar
} else if p.tt == AtKeywordToken {
return p.parseAtRule()
} else if p.tt == IdentToken || p.tt == DelimToken {
return p.parseDeclaration()
} else if p.tt == CustomPropertyNameToken {
return p.parseCustomProperty()
}
// parse error
p.initBuf()
p.l.r.Move(-len(p.data))
p.err, p.errPos = fmt.Sprintf("unexpected token '%s' in declaration", string(p.data)), p.l.r.Offset()
p.l.r.Move(len(p.data))
if p.tt == RightBraceToken {
// right brace token will occur when we've had a decl error that ended in a right brace token
// as these are not handled by decl error, we handle it here explicitly. Normally its used to end eg. the qual rule.
p.pushBuf(p.tt, p.data)
return ErrorGrammar
}
return p.parseDeclarationError(p.tt, p.data)
}
////////////////////////////////////////////////////////////////
func (p *Parser) parseAtRule() GrammarType {
p.initBuf()
p.data = parse.ToLower(parse.Copy(p.data))
atRuleName := p.data
if len(atRuleName) > 0 && atRuleName[1] == '-' {
if i := bytes.IndexByte(atRuleName[2:], '-'); i != -1 {
atRuleName = atRuleName[i+2:] // skip vendor specific prefix
}
}
atRule := ToHash(atRuleName[1:])
first := true
skipWS := false
for {
tt, data := p.popToken(false)
if tt == LeftBraceToken && p.level == 0 {
if atRule == Font_Face || atRule == Page {
p.state = append(p.state, (*Parser).parseAtRuleDeclarationList)
} else if atRule == Document || atRule == Keyframes || atRule == Media || atRule == Supports {
p.state = append(p.state, (*Parser).parseAtRuleRuleList)
} else {
p.state = append(p.state, (*Parser).parseAtRuleUnknown)
}
return BeginAtRuleGrammar
} else if (tt == SemicolonToken || tt == RightBraceToken) && p.level == 0 || tt == ErrorToken {
p.prevEnd = (tt == RightBraceToken)
return AtRuleGrammar
} else if tt == LeftParenthesisToken || tt == LeftBraceToken || tt == LeftBracketToken || tt == FunctionToken {
p.level++
} else if tt == RightParenthesisToken || tt == RightBraceToken || tt == RightBracketToken {
if p.level == 0 {
// TODO: buggy
p.pushBuf(tt, data)
if 1 < len(p.state) {
p.state = p.state[:len(p.state)-1]
}
p.err, p.errPos = "unexpected ending in at rule", p.l.r.Offset()
return ErrorGrammar
}
p.level--
}
if first {
if tt == LeftParenthesisToken || tt == LeftBracketToken {
p.prevWS = false
}
first = false
}
if len(data) == 1 && (data[0] == ',' || data[0] == ':') {
skipWS = true
} else if p.prevWS && !skipWS && tt != RightParenthesisToken {
p.pushBuf(WhitespaceToken, wsBytes)
} else {
skipWS = false
}
if tt == LeftParenthesisToken {
skipWS = true
}
p.pushBuf(tt, data)
}
}
func (p *Parser) parseAtRuleRuleList() GrammarType {
if p.tt == RightBraceToken || p.tt == ErrorToken {
p.state = p.state[:len(p.state)-1]
return EndAtRuleGrammar
} else if p.tt == AtKeywordToken {
return p.parseAtRule()
} else {
return p.parseQualifiedRule()
}
}
func (p *Parser) parseAtRuleDeclarationList() GrammarType {
for p.tt == SemicolonToken {
p.tt, p.data = p.popToken(false)
}
if p.tt == RightBraceToken || p.tt == ErrorToken {
p.state = p.state[:len(p.state)-1]
return EndAtRuleGrammar
}
return p.parseDeclarationList()
}
func (p *Parser) parseAtRuleUnknown() GrammarType {
p.keepWS = true
if p.tt == RightBraceToken && p.level == 0 || p.tt == ErrorToken {
p.state = p.state[:len(p.state)-1]
p.keepWS = false
return EndAtRuleGrammar
}
if p.tt == LeftParenthesisToken || p.tt == LeftBraceToken || p.tt == LeftBracketToken || p.tt == FunctionToken {
p.level++
} else if p.tt == RightParenthesisToken || p.tt == RightBraceToken || p.tt == RightBracketToken {
p.level--
}
return TokenGrammar
}
func (p *Parser) parseQualifiedRule() GrammarType {
p.initBuf()
first := true
inAttrSel := false
skipWS := true
var tt TokenType
var data []byte
for {
if first {
tt, data = p.tt, p.data
p.tt = WhitespaceToken
p.data = emptyBytes
first = false
} else {
tt, data = p.popToken(false)
}
if tt == LeftBraceToken && p.level == 0 {
p.state = append(p.state, (*Parser).parseQualifiedRuleDeclarationList)
return BeginRulesetGrammar
} else if tt == ErrorToken {
p.err, p.errPos = "unexpected ending in qualified rule", p.l.r.Offset()
return ErrorGrammar
} else if tt == LeftParenthesisToken || tt == LeftBraceToken || tt == LeftBracketToken || tt == FunctionToken {
p.level++
} else if tt == RightParenthesisToken || tt == RightBraceToken || tt == RightBracketToken {
if p.level == 0 {
// TODO: buggy
p.pushBuf(tt, data)
if 1 < len(p.state) {
p.state = p.state[:len(p.state)-1]
}
p.err, p.errPos = "unexpected ending in qualified rule", p.l.r.Offset()
return ErrorGrammar
}
p.level--
}
if len(data) == 1 && (data[0] == ',' || data[0] == '>' || data[0] == '+' || data[0] == '~') {
if data[0] == ',' {
return QualifiedRuleGrammar
}
skipWS = true
} else if p.prevWS && !skipWS && !inAttrSel {
p.pushBuf(WhitespaceToken, wsBytes)
} else {
skipWS = false
}
if tt == LeftBracketToken {
inAttrSel = true
} else if tt == RightBracketToken {
inAttrSel = false
}
p.pushBuf(tt, data)
}
}
func (p *Parser) parseQualifiedRuleDeclarationList() GrammarType {
for p.tt == SemicolonToken {
p.tt, p.data = p.popToken(false)
}
if p.tt == RightBraceToken || p.tt == ErrorToken {
p.state = p.state[:len(p.state)-1]
return EndRulesetGrammar
}
return p.parseDeclarationList()
}
func (p *Parser) parseDeclaration() GrammarType {
p.initBuf()
p.data = parse.ToLower(parse.Copy(p.data))
ttName, dataName := p.tt, p.data
tt, data := p.popToken(false)
if tt != ColonToken {
p.l.r.Move(-len(data))
p.err, p.errPos = "expected colon in declaration", p.l.r.Offset()
p.l.r.Move(len(data))
p.pushBuf(ttName, dataName)
return p.parseDeclarationError(tt, data)
}
skipWS := true
for {
tt, data := p.popToken(false)
if (tt == SemicolonToken || tt == RightBraceToken) && p.level == 0 || tt == ErrorToken {
p.prevEnd = (tt == RightBraceToken)
return DeclarationGrammar
} else if tt == LeftParenthesisToken || tt == LeftBraceToken || tt == LeftBracketToken || tt == FunctionToken {
p.level++
} else if tt == RightParenthesisToken || tt == RightBraceToken || tt == RightBracketToken {
if p.level == 0 {
// TODO: buggy
p.err, p.errPos = "unexpected ending in declaration", p.l.r.Offset()
p.pushBuf(ttName, dataName)
p.pushBuf(ColonToken, []byte{':'})
return p.parseDeclarationError(tt, data)
}
p.level--
}
if len(data) == 1 && (data[0] == ',' || data[0] == '/' || data[0] == ':' || data[0] == '!' || data[0] == '=') {
skipWS = true
} else if (p.prevWS || p.prevComment) && !skipWS {
p.pushBuf(WhitespaceToken, wsBytes)
} else {
skipWS = false
}
p.pushBuf(tt, data)
}
}
func (p *Parser) parseDeclarationError(tt TokenType, data []byte) GrammarType {
// we're on the offending (tt,data), keep popping tokens till we reach ;, }, or EOF
p.tt, p.data = tt, data
for {
if (tt == SemicolonToken || tt == RightBraceToken) && p.level == 0 || tt == ErrorToken {
p.prevEnd = (tt == RightBraceToken)
if tt == SemicolonToken {
p.pushBuf(tt, data)
}
return ErrorGrammar
} else if tt == LeftParenthesisToken || tt == LeftBraceToken || tt == LeftBracketToken || tt == FunctionToken {
p.level++
} else if tt == RightParenthesisToken || tt == RightBraceToken || tt == RightBracketToken {
p.level--
}
if p.prevWS {
p.pushBuf(WhitespaceToken, wsBytes)
}
p.pushBuf(tt, data)
tt, data = p.popToken(false)
}
}
func (p *Parser) parseCustomProperty() GrammarType {
p.initBuf()
if tt, data := p.popToken(false); tt != ColonToken {
p.l.r.Move(-len(data))
p.err, p.errPos = "expected colon in custom property", p.l.r.Offset()
p.l.r.Move(len(data))
return ErrorGrammar
}
val := []byte{}
for {
tt, data := p.l.Next()
if (tt == SemicolonToken || tt == RightBraceToken) && p.level == 0 || tt == ErrorToken {
p.prevEnd = (tt == RightBraceToken)
p.pushBuf(CustomPropertyValueToken, val)
return CustomPropertyGrammar
} else if tt == LeftParenthesisToken || tt == LeftBraceToken || tt == LeftBracketToken || tt == FunctionToken {
p.level++
} else if tt == RightParenthesisToken || tt == RightBraceToken || tt == RightBracketToken {
if p.level == 0 {
// TODO: buggy
p.pushBuf(tt, data)
p.err, p.errPos = "unexpected ending in custom property", p.l.r.Offset()
return ErrorGrammar
}
p.level--
}
val = append(val, data...)
}
}

47
vendor/github.com/tdewolff/parse/v2/css/util.go generated vendored
View file

@ -1,47 +0,0 @@
package css
import "github.com/tdewolff/parse/v2"
// IsIdent returns true if the bytes are a valid identifier.
func IsIdent(b []byte) bool {
l := NewLexer(parse.NewInputBytes(b))
l.consumeIdentToken()
l.r.Restore()
return l.r.Pos() == len(b)
}
// IsURLUnquoted returns true if the bytes are a valid unquoted URL.
func IsURLUnquoted(b []byte) bool {
l := NewLexer(parse.NewInputBytes(b))
l.consumeUnquotedURL()
l.r.Restore()
return l.r.Pos() == len(b)
}
// HSL2RGB converts HSL to RGB with all of range [0,1]
// from http://www.w3.org/TR/css3-color/#hsl-color
func HSL2RGB(h, s, l float64) (float64, float64, float64) {
m2 := l * (s + 1)
if l > 0.5 {
m2 = l + s - l*s
}
m1 := l*2 - m2
return hue2rgb(m1, m2, h+1.0/3.0), hue2rgb(m1, m2, h), hue2rgb(m1, m2, h-1.0/3.0)
}
func hue2rgb(m1, m2, h float64) float64 {
if h < 0.0 {
h += 1.0
}
if h > 1.0 {
h -= 1.0
}
if h*6.0 < 1.0 {
return m1 + (m2-m1)*h*6.0
} else if h*2.0 < 1.0 {
return m2
} else if h*3.0 < 2.0 {
return m1 + (m2-m1)*(2.0/3.0-h)*6.0
}
return m1
}

403
vendor/github.com/tdewolff/parse/v2/html/parse.go generated vendored
View file

@ -1,403 +0,0 @@
package html
import (
"bytes"
"fmt"
"io"
"strings"
"github.com/tdewolff/parse/v2"
"github.com/tdewolff/parse/v2/css"
)
type AST struct {
Children []*Tag
Text []byte
}
func (ast *AST) String() string {
sb := strings.Builder{}
for i, child := range ast.Children {
if i != 0 {
sb.WriteString("\n")
}
sb.WriteString(child.ASTString())
}
return sb.String()
}
type Attr struct {
Key, Val []byte
}
func (attr *Attr) String() string {
return fmt.Sprintf(`%s="%s"`, string(attr.Key), string(attr.Val))
}
type Tag struct {
Root *AST
Parent *Tag
Prev, Next *Tag
Children []*Tag
Index int
Name []byte
Attrs []Attr
textStart, textEnd int
}
func (tag *Tag) getAttr(key []byte) ([]byte, bool) {
for _, attr := range tag.Attrs {
if bytes.Equal(key, attr.Key) {
return attr.Val, true
}
}
return nil, false
}
func (tag *Tag) GetAttr(key string) (string, bool) {
val, ok := tag.getAttr([]byte(key))
return string(val), ok
}
func (tag *Tag) Text() string {
return string(tag.Root.Text[tag.textStart:tag.textEnd])
}
func (tag *Tag) String() string {
sb := strings.Builder{}
sb.WriteString("<")
sb.Write(tag.Name)
for _, attr := range tag.Attrs {
sb.WriteString(" ")
sb.WriteString(attr.String())
}
sb.WriteString(">")
return sb.String()
}
func (tag *Tag) ASTString() string {
sb := strings.Builder{}
sb.WriteString(tag.String())
for _, child := range tag.Children {
sb.WriteString("\n ")
s := child.ASTString()
s = strings.ReplaceAll(s, "\n", "\n ")
sb.WriteString(s)
}
return sb.String()
}
func Parse(r *parse.Input) (*AST, error) {
ast := &AST{}
root := &Tag{}
cur := root
l := NewLexer(r)
for {
tt, data := l.Next()
switch tt {
case ErrorToken:
if err := l.Err(); err != io.EOF {
return nil, err
}
ast.Children = root.Children
return ast, nil
case TextToken:
ast.Text = append(ast.Text, data...)
case StartTagToken:
child := &Tag{
Root: ast,
Parent: cur,
Index: len(cur.Children),
Name: l.Text(),
textStart: len(ast.Text),
}
if 0 < len(cur.Children) {
child.Prev = cur.Children[len(cur.Children)-1]
child.Prev.Next = child
}
cur.Children = append(cur.Children, child)
cur = child
case AttributeToken:
val := l.AttrVal()
if 0 < len(val) && (val[0] == '"' || val[0] == '\'') {
val = val[1 : len(val)-1]
}
cur.Attrs = append(cur.Attrs, Attr{l.AttrKey(), val})
case StartTagCloseToken:
if voidTags[string(cur.Name)] {
cur.textEnd = len(ast.Text)
cur = cur.Parent
}
case EndTagToken, StartTagVoidToken:
start := cur
for start != root && !bytes.Equal(l.Text(), start.Name) {
start = start.Parent
}
if start == root {
// ignore
} else {
parent := start.Parent
for cur != parent {
cur.textEnd = len(ast.Text)
cur = cur.Parent
}
}
}
}
}
func (ast *AST) Query(s string) (*Tag, error) {
sel, err := ParseSelector(s)
if err != nil {
return nil, err
}
for _, child := range ast.Children {
if match := child.query(sel); match != nil {
return match, nil
}
}
return nil, nil
}
func (tag *Tag) query(sel selector) *Tag {
if sel.AppliesTo(tag) {
return tag
}
for _, child := range tag.Children {
if match := child.query(sel); match != nil {
return match
}
}
return nil
}
func (ast *AST) QueryAll(s string) ([]*Tag, error) {
sel, err := ParseSelector(s)
if err != nil {
return nil, err
}
matches := []*Tag{}
for _, child := range ast.Children {
child.queryAll(&matches, sel)
}
return matches, nil
}
func (tag *Tag) queryAll(matches *[]*Tag, sel selector) {
if sel.AppliesTo(tag) {
*matches = append(*matches, tag)
}
for _, child := range tag.Children {
child.queryAll(matches, sel)
}
}
type attrSelector struct {
op byte // empty, =, ~, |
attr []byte
val []byte
}
func (sel attrSelector) AppliesTo(tag *Tag) bool {
val, ok := tag.getAttr(sel.attr)
if !ok {
return false
}
switch sel.op {
case 0:
return true
case '=':
return bytes.Equal(val, sel.val)
case '~':
if 0 < len(sel.val) {
vals := bytes.Split(val, []byte(" "))
for _, val := range vals {
if bytes.Equal(val, sel.val) {
return true
}
}
}
case '|':
return bytes.Equal(val, sel.val) || bytes.HasPrefix(val, append(sel.val, '-'))
}
return false
}
func (attr attrSelector) String() string {
sb := strings.Builder{}
sb.Write(attr.attr)
if attr.op != 0 {
sb.WriteByte(attr.op)
if attr.op != '=' {
sb.WriteByte('=')
}
sb.WriteByte('"')
sb.Write(attr.val)
sb.WriteByte('"')
}
return sb.String()
}
type selectorNode struct {
typ []byte // is * for universal
attrs []attrSelector
op byte // space or >, last is NULL
}
func (sel selectorNode) AppliesTo(tag *Tag) bool {
if 0 < len(sel.typ) && !bytes.Equal(sel.typ, []byte("*")) && !bytes.Equal(sel.typ, tag.Name) {
return false
}
for _, attr := range sel.attrs {
if !attr.AppliesTo(tag) {
return false
}
}
return true
}
func (sel selectorNode) String() string {
sb := strings.Builder{}
sb.Write(sel.typ)
for _, attr := range sel.attrs {
if bytes.Equal(attr.attr, []byte("id")) && attr.op == '=' {
sb.WriteByte('#')
sb.Write(attr.val)
} else if bytes.Equal(attr.attr, []byte("class")) && attr.op == '~' {
sb.WriteByte('.')
sb.Write(attr.val)
} else {
sb.WriteByte('[')
sb.WriteString(attr.String())
sb.WriteByte(']')
}
}
if sel.op != 0 {
sb.WriteByte(' ')
sb.WriteByte(sel.op)
sb.WriteByte(' ')
}
return sb.String()
}
type token struct {
tt css.TokenType
data []byte
}
type selector []selectorNode
func ParseSelector(s string) (selector, error) {
ts := []token{}
l := css.NewLexer(parse.NewInputString(s))
for {
tt, data := l.Next()
if tt == css.ErrorToken {
if err := l.Err(); err != io.EOF {
return selector{}, err
}
break
}
ts = append(ts, token{
tt: tt,
data: data,
})
}
sel := selector{}
node := selectorNode{}
for i := 0; i < len(ts); i++ {
t := ts[i]
if 0 < i && (t.tt == css.WhitespaceToken || t.tt == css.DelimToken && t.data[0] == '>') {
if t.tt == css.DelimToken {
node.op = '>'
} else {
node.op = ' '
}
sel = append(sel, node)
node = selectorNode{}
} else if t.tt == css.IdentToken || t.tt == css.DelimToken && t.data[0] == '*' {
node.typ = t.data
} else if t.tt == css.DelimToken && (t.data[0] == '.' || t.data[0] == '#') && i+1 < len(ts) && ts[i+1].tt == css.IdentToken {
if t.data[0] == '#' {
node.attrs = append(node.attrs, attrSelector{op: '=', attr: []byte("id"), val: ts[i+1].data})
} else {
node.attrs = append(node.attrs, attrSelector{op: '~', attr: []byte("class"), val: ts[i+1].data})
}
i++
} else if t.tt == css.DelimToken && t.data[0] == '[' && i+2 < len(ts) && ts[i+1].tt == css.IdentToken && ts[i+2].tt == css.DelimToken {
if ts[i+2].data[0] == ']' {
node.attrs = append(node.attrs, attrSelector{op: 0, attr: ts[i+1].data})
i += 2
} else if i+4 < len(ts) && ts[i+3].tt == css.IdentToken && ts[i+4].tt == css.DelimToken && ts[i+4].data[0] == ']' {
node.attrs = append(node.attrs, attrSelector{op: ts[i+2].data[0], attr: ts[i+1].data, val: ts[i+3].data})
i += 4
}
}
}
sel = append(sel, node)
return sel, nil
}
func (sels selector) AppliesTo(tag *Tag) bool {
if len(sels) == 0 {
return true
} else if !sels[len(sels)-1].AppliesTo(tag) {
return false
}
tag = tag.Parent
isel := len(sels) - 2
for 0 <= isel && tag != nil {
switch sels[isel].op {
case ' ':
for tag != nil {
if sels[isel].AppliesTo(tag) {
break
}
tag = tag.Parent
}
case '>':
if !sels[isel].AppliesTo(tag) {
return false
}
tag = tag.Parent
default:
return false
}
isel--
}
return len(sels) != 0 && isel == -1
}
func (sels selector) String() string {
if len(sels) == 0 {
return ""
}
sb := strings.Builder{}
for _, sel := range sels {
sb.WriteString(sel.String())
}
return sb.String()[1:]
}
var voidTags = map[string]bool{
"area": true,
"base": true,
"br": true,
"col": true,
"embed": true,
"hr": true,
"img": true,
"input": true,
"link": true,
"meta": true,
"source": true,
"track": true,
"wbr": true,
}

4
vendor/github.com/tdewolff/parse/v2/util.go generated vendored
View file

@ -196,6 +196,10 @@ func NewIndenter(w io.Writer, n int) Indenter {
}
}
func (in Indenter) Indent() int {
return len(in.b)
}
func (in Indenter) Write(b []byte) (int, error) {
n, j := 0, 0
for i, c := range b {

5
vendor/modules.txt vendored
View file

@ -818,15 +818,14 @@ github.com/superseriousbusiness/oauth2/v4/generates
github.com/superseriousbusiness/oauth2/v4/manage
github.com/superseriousbusiness/oauth2/v4/models
github.com/superseriousbusiness/oauth2/v4/server
# github.com/tdewolff/minify/v2 v2.20.33
# github.com/tdewolff/minify/v2 v2.20.34
## explicit; go 1.18
github.com/tdewolff/minify/v2
github.com/tdewolff/minify/v2/html
# github.com/tdewolff/parse/v2 v2.7.14
# github.com/tdewolff/parse/v2 v2.7.15
## explicit; go 1.13
github.com/tdewolff/parse/v2
github.com/tdewolff/parse/v2/buffer
github.com/tdewolff/parse/v2/css
github.com/tdewolff/parse/v2/html
github.com/tdewolff/parse/v2/strconv
# github.com/technologize/otel-go-contrib v1.1.1