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|
package css_parser
import (
"strings"
"github.com/evanw/esbuild/internal/css_ast"
"github.com/evanw/esbuild/internal/css_lexer"
)
// list-style-image: <image> | none
// <image>: <url> | <gradient>
// <url>: <url()> | <src()>
// <gradient>: <linear-gradient()> | <repeating-linear-gradient()> | <radial-gradient()> | <repeating-radial-gradient()>
//
// list-style-type: <counter-style> | <string> | none (where the string is a literal bullet marker)
// <counter-style>: <counter-style-name> | <symbols()>
// <counter-style-name>: not: decimal | disc | square | circle | disclosure-open | disclosure-closed | <wide keyword>
// when parsing a <custom-ident> with conflicts, only parse one if no other thing can claim it
func (p *parser) processListStyleShorthand(tokens []css_ast.Token) {
if len(tokens) < 1 || len(tokens) > 3 {
return
}
foundImage := false
foundPosition := false
typeIndex := -1
noneCount := 0
for i, t := range tokens {
switch t.Kind {
case css_lexer.TString:
// "list-style-type" is definitely not a <custom-ident>
return
case css_lexer.TURL:
if !foundImage {
foundImage = true
continue
}
case css_lexer.TFunction:
if !foundImage {
switch strings.ToLower(t.Text) {
case "src", "linear-gradient", "repeating-linear-gradient", "radial-gradient", "radial-linear-gradient":
foundImage = true
continue
}
}
case css_lexer.TIdent:
lower := strings.ToLower(t.Text)
// Note: If "none" is present, it's ambiguous whether it applies to
// "list-style-image" or "list-style-type". To resolve ambiguity it's
// applied at the end to whichever property isn't otherwise set.
if lower == "none" {
noneCount++
continue
}
if !foundPosition && (lower == "inside" || lower == "outside") {
foundPosition = true
continue
}
if typeIndex == -1 {
if cssWideAndReservedKeywords[lower] || predefinedCounterStyles[lower] {
// "list-style-type" is definitely not a <custom-ident>
return
}
typeIndex = i
continue
}
}
// Bail if we hit an unexpected token
return
}
if typeIndex != -1 {
// The first "none" applies to "list-style-image" if it's missing
if !foundImage && noneCount > 0 {
noneCount--
}
if noneCount > 0 {
// "list-style-type" is "none", not a <custom-ident>
return
}
if t := &tokens[typeIndex]; t.Kind == css_lexer.TIdent {
t.Kind = css_lexer.TSymbol
t.PayloadIndex = p.symbolForName(t.Loc, t.Text).Ref.InnerIndex
}
}
}
func (p *parser) processListStyleType(t *css_ast.Token) {
if t.Kind == css_lexer.TIdent {
if lower := strings.ToLower(t.Text); lower != "none" && !cssWideAndReservedKeywords[lower] && !predefinedCounterStyles[lower] {
t.Kind = css_lexer.TSymbol
t.PayloadIndex = p.symbolForName(t.Loc, t.Text).Ref.InnerIndex
}
}
}
// https://drafts.csswg.org/css-counter-styles-3/#predefined-counters
var predefinedCounterStyles = map[string]bool{
// 6.1. Numeric:
"arabic-indic": true,
"armenian": true,
"bengali": true,
"cambodian": true,
"cjk-decimal": true,
"decimal-leading-zero": true,
"decimal": true,
"devanagari": true,
"georgian": true,
"gujarati": true,
"gurmukhi": true,
"hebrew": true,
"kannada": true,
"khmer": true,
"lao": true,
"lower-armenian": true,
"lower-roman": true,
"malayalam": true,
"mongolian": true,
"myanmar": true,
"oriya": true,
"persian": true,
"tamil": true,
"telugu": true,
"thai": true,
"tibetan": true,
"upper-armenian": true,
"upper-roman": true,
// 6.2. Alphabetic:
"hiragana-iroha": true,
"hiragana": true,
"katakana-iroha": true,
"katakana": true,
"lower-alpha": true,
"lower-greek": true,
"lower-latin": true,
"upper-alpha": true,
"upper-latin": true,
// 6.3. Symbolic:
"circle": true,
"disc": true,
"disclosure-closed": true,
"disclosure-open": true,
"square": true,
// 6.4. Fixed:
"cjk-earthly-branch": true,
"cjk-heavenly-stem": true,
// 7.1.1. Japanese:
"japanese-formal": true,
"japanese-informal": true,
// 7.1.2. Korean:
"korean-hangul-formal": true,
"korean-hanja-formal": true,
"korean-hanja-informal": true,
// 7.1.3. Chinese:
"simp-chinese-formal": true,
"simp-chinese-informal": true,
"trad-chinese-formal": true,
"trad-chinese-informal": true,
// 7.2. Ethiopic Numeric Counter Style:
"ethiopic-numeric": true,
}
|
