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[toc] / antlr4-cpp-runtime-4.9.2-source / runtime / src / tree / xpath / XPathLexer.g4

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/tree/xpath/XPathLexer.g4 b/antlr4-cpp-runtime-4.9.2-source/runtime/src/tree/xpath/XPathLexer.g4
new file mode 100644 (file)
index 0000000..14bcf5a
--- /dev/null
+++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/tree/xpath/XPathLexer.g4
@@ -0,0 +1,64 @@
+lexer grammar XPathLexer;
+
+tokens { TOKEN_REF, RULE_REF }
+
+/*
+path : separator? word (separator word)* EOF ;
+
+separator
+       :       '/'  '!'
+       |       '//' '!'
+       |       '/'
+       |       '//'
+       ;
+
+word:  TOKEN_REF
+       |       RULE_REF
+       |       STRING
+       |       '*'
+       ;
+*/
+
+ANYWHERE : '//' ;
+ROOT    : '/' ;
+WILDCARD : '*' ;
+BANG    : '!' ;
+
+ID                     :       NameStartChar NameChar*
+                               {
+                               if (isupper(getText()[0]))
+                                 setType(TOKEN_REF);
+                               else
+                                 setType(RULE_REF);
+                               }
+                       ;
+
+fragment
+NameChar    :   NameStartChar
+            |   '0'..'9'
+            |   '_'
+            |   '\u00B7'
+            |   '\u0300'..'\u036F'
+            |   '\u203F'..'\u2040'
+            ;
+
+fragment
+NameStartChar
+            :   'A'..'Z' | 'a'..'z'
+            |   '\u00C0'..'\u00D6'
+            |   '\u00D8'..'\u00F6'
+            |   '\u00F8'..'\u02FF'
+            |   '\u0370'..'\u037D'
+            |   '\u037F'..'\u1FFF'
+            |   '\u200C'..'\u200D'
+            |   '\u2070'..'\u218F'
+            |   '\u2C00'..'\u2FEF'
+            |   '\u3001'..'\uD7FF'
+            |   '\uF900'..'\uFDCF'
+            |   '\uFDF0'..'\uFFFF' // implicitly includes ['\u10000-'\uEFFFF]
+            ;
+
+STRING : '\'' .*? '\'';
+
+//WS : [ \t\r\n]+ -> skip ;
+