I am having trouble translating an EBNF grammar to an Antlr4 grammar
2
I have the following EBNF grammar:
StringConstructor ::= "``[" StringConstructorContent "]``"
StringConstructorContent ::= StringConstructorChars (StringConstructorInterpolation StringConstructorChars)*
StringConstructorChars ::= (Char* - (Char* ('`{' | ']``') Char*))
StringConstructorInterpolation ::= "`{" Expr? "}`"
Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
And am trying the following in Antlr4 at xqDoc GitHub repository:
XQueryParser.g4
stringConstructor: '`' '`' '[' stringConstructorContent ']' '`' '`' ;
stringConstructorContent: stringConstructorChars (stringConstructorInterpolation stringConstructorChars)* ;
stringConstructorChars: ( CHAR* ~ ( CHAR* (('`' '{') | (']' '`' '`')) CHAR* ) ) ;
stringConstructorInterpolation: '`' '{' expr '}' '`' ;
XQueryLexer.g4
CHAR: ( 't' | 'n' | 'r' | 'u0020'..'u0039' | 'u003B'..'uD7FF' | 'uE000'..'uFFFD' ) ;
It is for parsing the following:
for $s in ("one", "two", "red", "blue")
return ``[`{$s}` fish]``
and evaluates to the sequence ("one fish", "two fish", "red fish", "blue fish").
I am getting the following errors:
error(50): :494:38: syntax error: missing RPAREN at '*' while looking for rule element
error(50): :494:70: syntax error: extraneous input ')' expecting SEMI while matching a rule
Does anyone have a suggestion to fix this? I have commented out that section of the grammar so that it compiles.
xquery antlr antlr4
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
add a comment |
2
I have the following EBNF grammar:
StringConstructor ::= "``[" StringConstructorContent "]``"
StringConstructorContent ::= StringConstructorChars (StringConstructorInterpolation StringConstructorChars)*
StringConstructorChars ::= (Char* - (Char* ('`{' | ']``') Char*))
StringConstructorInterpolation ::= "`{" Expr? "}`"
Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
And am trying the following in Antlr4 at xqDoc GitHub repository:
XQueryParser.g4
stringConstructor: '`' '`' '[' stringConstructorContent ']' '`' '`' ;
stringConstructorContent: stringConstructorChars (stringConstructorInterpolation stringConstructorChars)* ;
stringConstructorChars: ( CHAR* ~ ( CHAR* (('`' '{') | (']' '`' '`')) CHAR* ) ) ;
stringConstructorInterpolation: '`' '{' expr '}' '`' ;
XQueryLexer.g4
CHAR: ( 't' | 'n' | 'r' | 'u0020'..'u0039' | 'u003B'..'uD7FF' | 'uE000'..'uFFFD' ) ;
It is for parsing the following:
for $s in ("one", "two", "red", "blue")
return ``[`{$s}` fish]``
and evaluates to the sequence ("one fish", "two fish", "red fish", "blue fish").
I am getting the following errors:
error(50): :494:38: syntax error: missing RPAREN at '*' while looking for rule element
error(50): :494:70: syntax error: extraneous input ')' expecting SEMI while matching a rule
Does anyone have a suggestion to fix this? I have commented out that section of the grammar so that it compiles.
xquery antlr antlr4
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
Are those errors referring to line 494 at columns 38 and 70? If so, which line in the code you provided is line 494 in your file?
– Tomer Aberbach
Nov 29 '18 at 18:33
line 494 is the stringConstructorChars in the XQueryParser.g4
– Loren Cahlander
Dec 19 '18 at 10:00
add a comment |
2
2
2
I have the following EBNF grammar:
StringConstructor ::= "``[" StringConstructorContent "]``"
StringConstructorContent ::= StringConstructorChars (StringConstructorInterpolation StringConstructorChars)*
StringConstructorChars ::= (Char* - (Char* ('`{' | ']``') Char*))
StringConstructorInterpolation ::= "`{" Expr? "}`"
Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
And am trying the following in Antlr4 at xqDoc GitHub repository:
XQueryParser.g4
stringConstructor: '`' '`' '[' stringConstructorContent ']' '`' '`' ;
stringConstructorContent: stringConstructorChars (stringConstructorInterpolation stringConstructorChars)* ;
stringConstructorChars: ( CHAR* ~ ( CHAR* (('`' '{') | (']' '`' '`')) CHAR* ) ) ;
stringConstructorInterpolation: '`' '{' expr '}' '`' ;
XQueryLexer.g4
CHAR: ( 't' | 'n' | 'r' | 'u0020'..'u0039' | 'u003B'..'uD7FF' | 'uE000'..'uFFFD' ) ;
It is for parsing the following:
for $s in ("one", "two", "red", "blue")
return ``[`{$s}` fish]``
and evaluates to the sequence ("one fish", "two fish", "red fish", "blue fish").
I am getting the following errors:
error(50): :494:38: syntax error: missing RPAREN at '*' while looking for rule element
error(50): :494:70: syntax error: extraneous input ')' expecting SEMI while matching a rule
Does anyone have a suggestion to fix this? I have commented out that section of the grammar so that it compiles.
xquery antlr antlr4
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
I have the following EBNF grammar:
StringConstructor ::= "``[" StringConstructorContent "]``"
StringConstructorContent ::= StringConstructorChars (StringConstructorInterpolation StringConstructorChars)*
StringConstructorChars ::= (Char* - (Char* ('`{' | ']``') Char*))
StringConstructorInterpolation ::= "`{" Expr? "}`"
Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
And am trying the following in Antlr4 at xqDoc GitHub repository:
XQueryParser.g4
stringConstructor: '`' '`' '[' stringConstructorContent ']' '`' '`' ;
stringConstructorContent: stringConstructorChars (stringConstructorInterpolation stringConstructorChars)* ;
stringConstructorChars: ( CHAR* ~ ( CHAR* (('`' '{') | (']' '`' '`')) CHAR* ) ) ;
stringConstructorInterpolation: '`' '{' expr '}' '`' ;
XQueryLexer.g4
CHAR: ( 't' | 'n' | 'r' | 'u0020'..'u0039' | 'u003B'..'uD7FF' | 'uE000'..'uFFFD' ) ;
It is for parsing the following:
for $s in ("one", "two", "red", "blue")
return ``[`{$s}` fish]``
and evaluates to the sequence ("one fish", "two fish", "red fish", "blue fish").
I am getting the following errors:
error(50): :494:38: syntax error: missing RPAREN at '*' while looking for rule element
error(50): :494:70: syntax error: extraneous input ')' expecting SEMI while matching a rule
Does anyone have a suggestion to fix this? I have commented out that section of the grammar so that it compiles.
xquery antlr antlr4
xquery antlr antlr4
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
asked Nov 24 '18 at 20:22
Loren CahlanderLoren Cahlander
551315
551315
Are those errors referring to line 494 at columns 38 and 70? If so, which line in the code you provided is line 494 in your file?
– Tomer Aberbach
Nov 29 '18 at 18:33
line 494 is the stringConstructorChars in the XQueryParser.g4
– Loren Cahlander
Dec 19 '18 at 10:00
add a comment |
Are those errors referring to line 494 at columns 38 and 70? If so, which line in the code you provided is line 494 in your file?
– Tomer Aberbach
Nov 29 '18 at 18:33
line 494 is the stringConstructorChars in the XQueryParser.g4
– Loren Cahlander
Dec 19 '18 at 10:00
Are those errors referring to line 494 at columns 38 and 70? If so, which line in the code you provided is line 494 in your file?
– Tomer Aberbach
Nov 29 '18 at 18:33
Are those errors referring to line 494 at columns 38 and 70? If so, which line in the code you provided is line 494 in your file?
– Tomer Aberbach
Nov 29 '18 at 18:33
line 494 is the stringConstructorChars in the XQueryParser.g4
– Loren Cahlander
Dec 19 '18 at 10:00
line 494 is the stringConstructorChars in the XQueryParser.g4
– Loren Cahlander
Dec 19 '18 at 10:00
add a comment |
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Are those errors referring to line 494 at columns 38 and 70? If so, which line in the code you provided is line 494 in your file?
– Tomer Aberbach
Nov 29 '18 at 18:33
line 494 is the stringConstructorChars in the XQueryParser.g4
– Loren Cahlander
Dec 19 '18 at 10:00