Remove grammar canonicalization, now that it's not required to parse.

Author: tabatkins

parse-css.js

@@ -1437,140 +1437,6 @@ class Func extends CSSParserRule {
 }
 
 
-/* Grammar Application */
-
-function canonicalize(rule, grammar, topGrammar) {
-	if(grammar === undefined) grammar = CSSGrammar;
-	if(topGrammar === undefined) topGrammar = grammar
-	if(!validateGrammar(grammar)) return;
-	if(grammar) {
-		if(grammar.stylesheet) grammar = topGrammar;
-		var unknownTransformer = grammar.unknown || function(){return};
-	}
-	var ret = {"type":rule.type.toLowerCase()};
-
-	if(rule.type == "STYLESHEET") {
-		var contents = rule.value;
-	} else if(rule.type == "BLOCK") {
-		var unparsedContents = rule.value;
-		ret.name = rule.name;
-	} else if(rule.type == "QUALIFIED-RULE") {
-		var unparsedContents = rule.value.value;
-		ret.prelude = rule.prelude;
-	} else if(rule.type == "AT-RULE") {
-		var unparsedContents = rule.value.value;
-		ret.name = rule.name;
-		ret.prelude = rule.prelude;
-	} else if(rule.type == "DECLARATION") {
-		// I don't do grammar-checking of declarations yet.
-		ret.name = rule.name;
-		ret.value = rule.value;
-		ret.important = rule.important;
-		return ret;
-	}
-
-	if(!grammar) {
-		return ret;
-	} else if(grammar.declarations) {
-		ret.declarations = {}; // simple key/value map of declarations
-		ret.rules = []; // in-order list of both decls and at-rules
-		ret.errors = [];
-		for(var i = 0; i < contents.length; i++) {
-			var rule = contents[i];
-			if(rule instanceof Declaration) {
-				var decl = canonicalize(rule, {}, topGrammar);
-				ret.declarations[rule.name] = decl;
-				ret.rules.push(decl);
-			} else { // rule is instanceof AtRule
-				var subGrammar = grammar["@" + rule.name];
-				if(subGrammar) { // Rule is valid in this context
-					ret.rules.push(canonicalize(rule, subGrammar, topGrammar));
-				} else {
-					var result = unknownTransformer(rule);
-					if(result) {
-						ret.rules.push(result);
-					} else {
-						ret.errors.push(result);
-					}
-				}
-			}
-		}
-	} else {
-		ret.rules = [];
-		ret.errors = [];
-		for(var i = 0; i < contents.length; i++) {
-			var rule = contents[i];
-			if(rule instanceof QualifiedRule) {
-				ret.rules.push(canonicalize(rule, grammar.qualified, topGrammar));
-			} else {
-				var subGrammar = grammar["@" + rule.name];
-				if(subGrammar) { // Rule is valid in this context
-					ret.rules.push(canonicalize(rule, subGrammar, topGrammar));
-				} else {
-					var result = unknownTransformer(rule);
-					if(result) {
-						ret.rules.push(result);
-					} else {
-						ret.errors.push(result);
-					}
-				}
-			}
-		}
-	}
-	return ret;
-}
-
-function validateGrammar(grammar) {
-	// TODO
-	return true
-}
-
-var CSSGrammar = {
-	qualified: {declarations:true},
-	"@media": {stylesheet:true},
-	"@keyframes": {qualified:{declarations:true}},
-	"@font-face": {declarations:true},
-	"@supports": {stylesheet:true},
-	"@scope": {stylesheet:true},
-	"@counter-style": {declarations:true},
-	"@import": null,
-	"@font-feature-values": {
-		// No qualified rules actually allowed,
-		// but have to declare it one way or the other.
-		qualified: true,
-		"@stylistic": {declarations:true},
-		"@styleset": {declarations:true},
-		"@character-variants": {declarations:true},
-		"@swash": {declarations:true},
-		"@ornaments": {declarations:true},
-		"@annotation": {declarations:true},
-	},
-	"@viewport": {declarations:true},
-	"@page": {
-		declarations: true,
-		"@top-left-corner": {declarations:true},
-		"@top-left": {declarations:true},
-		"@top-center": {declarations:true},
-		"@top-right": {declarations:true},
-		"@top-right-corner": {declarations:true},
-		"@right-top": {declarations:true},
-		"@right-middle": {declarations:true},
-		"@right-bottom": {declarations:true},
-		"@right-bottom-corner": {declarations:true},
-		"@bottom-right": {declarations:true},
-		"@bottom-center": {declarations:true},
-		"@bottom-left": {declarations:true},
-		"@bottom-left-corner": {declarations:true},
-		"@left-bottom": {declarations:true},
-		"@left-center": {declarations:true},
-		"@left-top": {declarations:true},
-	},
-	"@custom-selector": null,
-	"@custom-media": null
-}
-
-
-
 // Exportation.
 exports.CSSParserRule = CSSParserRule;
 exports.Stylesheet = Stylesheet;
@@ -1586,8 +1452,6 @@ exports.parseADeclaration = parseADeclaration;
 exports.parseAComponentValue = parseAComponentValue;
 exports.parseAListOfComponentValues = parseAListOfComponentValues;
 exports.parseACommaSeparatedListOfComponentValues = parseACommaSeparatedListOfComponentValues;
-exports.canonicalizeRule = canonicalize;
-exports.CSSGrammar = CSSGrammar;
 exports.tokenize = tokenize;
 
 }));