css3

css3/css3.g4

@@ -0,0 +1,120 @@
+grammar css3;
+
+stylesheet
+	: importRule* (nested | ruleset)+
+	;
+
+importRule
+	: ('@import' | '@include')  STRING 
+	;
+
+nested
+ 	: '@' nest '{' properties? nested* '}' 
+	;
+
+nest
+	: IDENT IDENT* pseudo* 
+	;
+
+ruleset
+ 	: selectors '{' properties? '}'
+	;
+
+selectors
+	: selector (',' selector)*
+	;
+
+selector
+	: elem selectorOperation* attrib* pseudo? 
+	;
+
+selectorOperation
+	: selectop? elem
+	;
+
+selectop
+	: '>' 
+        | '+'  
+	;
+
+properties
+	: declaration (';' declaration?)*
+	;
+
+elem
+	:     IDENT 
+	| '#' IDENT 
+	| '.' IDENT 
+	;
+
+pseudo
+	: (':'|'::') IDENT
+	| (':'|'::') function 
+	;
+
+attrib
+	: '[' IDENT (attribRelate (STRING | IDENT))? ']' 
+	;
+
+attribRelate
+	: '=' 
+	| '~='
+	| '|=' 
+	;	
+
+declaration
+	: IDENT ':' args 
+	;
+
+args
+	: expr (','? expr)*
+	;
+
+expr
+	: (NUM unit?)
+	| IDENT
+	| COLOR
+	| STRING
+	| function
+	;
+
+unit
+	: ('%'|'px'|'cm'|'mm'|'in'|'pt'|'pc'|'em'|'ex'|'deg'|'rad'|'grad'|'ms'|'s'|'hz'|'khz')
+	;
+
+function
+	: IDENT '(' args? ')'
+	;
+
+IDENT
+	:	('_' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' ) 
+		('_' | '-' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' | '0'..'9')*
+	|	'-' ('_' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' ) 
+		('_' | '-' | 'a'..'z'| 'A'..'Z' | '\u0100'..'\ufffe' | '0'..'9')*
+	;
+
+STRING
+	:	'"' (~('"'|'\n'|'\r'))* '"'
+	|	'\'' (~('\''|'\n'|'\r'))* '\''
+	;
+
+NUM
+	:	'-' (('0'..'9')* '.')? ('0'..'9')+
+	|	(('0'..'9')* '.')? ('0'..'9')+
+	;
+
+COLOR
+	: '#' ('0'..'9'|'a'..'f'|'A'..'F')+
+	;
+
+SL_COMMENT
+	: '//' (~('\n'|'\r'))* ('\n'|'\r'('\n')?) ->skip
+	;
+
+COMMENT
+	: '/*' .* '*/' ->skip
+	;
+
+WS	: ( ' ' | '\t' | '\r' | '\n' | '\f' )+ ->skip
+	;
+

css3/examples/example1.css

@@ -0,0 +1,9 @@
+body {
+    color: #000000;
+}
+h1 {
+    color: #ff0000;
+}
+p {
+    color: #00ff00;
+}

css3/examples/example2.css

@@ -0,0 +1,7 @@
+		body {
+			font-family: Arial, Helvetica, sans-serif;
+		}
+		h1 {
+			font-family: "Times New Roman", Times, serif;
+		}
+

css3/pom.xml

@@ -0,0 +1,55 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>CSS3</artifactId>
+	<packaging>jar</packaging>
+	<name>CSS3 grammar</name>
+	<parent>
+		<groupId>com.antlr.grammarsv4</groupId>
+		<artifactId>grammarsv4</artifactId>
+		<version>1.0-SNAPSHOT</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.antlr</groupId>
+				<artifactId>antlr4-maven-plugin</artifactId>
+				<version>${antlr.version}</version>
+				<configuration>
+					<sourceDirectory>${basedir}</sourceDirectory>
+					<grammars>css3.g4</grammars>
+					<visitor>true</visitor>
+					<listener>true</listener>
+				</configuration>
+				<executions>
+					<execution>
+						<goals>
+							<goal>antlr4</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>com.khubla.antlr</groupId>
+				<artifactId>antlr4test-maven-plugin</artifactId>
+				<version>${antlr4test-maven-plugin.version}</version>
+				<configuration>
+					<verbose>false</verbose>
+					<showTree>false</showTree>
+					<entryPoint>stylesheet</entryPoint>
+					<grammarName>css3</grammarName>
+					<packageName></packageName>
+					<exampleFiles>examples/</exampleFiles>
+				</configuration>
+				<executions>
+					<execution>
+						<goals>
+							<goal>test</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

css3/readme.txt

@@ -0,0 +1,5 @@
+trihus Tue Jul 1, 2008 13:43
+This CSS parser handles valid CSS syntax. It will also accept property values not defined by CSS without giving an error. It has been debugged with ANTLRWorks and tested on a number of CSS files. (You must comment out language=CSharp for it to work with ANTLRWorks). I don't think it handles the full syntax of @import or @include.
+
+Forward ported from Antlr3 to Antlr4 by Tom Everett.  April 2017.
+

pom.xml

@@ -29,6 +29,7 @@
 		<module>cpp</module>
 		<module>creole</module>
 		<!-- C# runtime is not supported. <module>csharp</module> -->
+		<module>css3</module>
 		<module>csv</module>
 		<module>datetime</module>
 		<module>dcm</module>