src/doc: introduce option --no-render in HTML phase.

[nit.git] / contrib / nitcc / src / nitcc.sablecc

diff --git a/contrib/nitcc/src/nitcc.sablecc b/contrib/nitcc/src/nitcc.sablecc
index 130743a..c3208ae 100644 (file)
--- a/contrib/nitcc/src/nitcc.sablecc
+++ b/contrib/nitcc/src/nitcc.sablecc
@@ -15,6 +15,9 @@ str = '\'' (ch-'\\'-'\''|'\\'ch)* '\'';
 // A char by decimal ascii
 ch_dec = '#' ('0'..'9')+ ;
 
+// A char by hexadecimal ascii
+ch_hex = '#' ('x'|'X') ('0'..'9'|'a'..'z'|'A'..'Z')+ ;
+
 // A single-line comment
 comment = '//' ch* '\n'?;
 
@@ -27,14 +30,14 @@ ccomment = '/*' not_star* ('*' (not_star_not_slash not_star*)?)* '*/';
 unknown_keyword = 'A'..'Z'('A'..'Z'|'a'..'z'|'0'..'9'|'_')*;
 
 // Igndored stufs
-blank = '\n' | '\t' | ' ' | comment | ccomment;
+blank = '\r' | '\n' | '\t' | ' ' | comment | ccomment;
 
 Parser
 
 Ignored blank;
 Rejected unknown_keyword;
 
-grammar = 'Grammar' id ';' lexer_part? parser_part?;
+grammar = 'Grammar' id ';' lexer_part? parser_part? tree_part?;
 
 lexer_part = 'Lexer' expr*;
 
@@ -59,21 +62,27 @@ re3 {-> re} =
        {ques:} re3 '?' |
        {star:} re3 '*' |
        {plus:} re3 '+' |
+       {shortest:} 'Shortest' '(' re ')' |
+       {longest:} 'Longest' '(' re ')' |
        {id:} id |
-       {str:} str |
        {par:} '(' re ')' |
-       {class:} str '.' '.' str |
+       {class:} text '.' '.' text |
        {any:} 'Any' |
-       {ch_dec:} ch_dec ;
+       {end:} 'End' |
+       {text:} text ;
 
+text {-> re} =
+       {str:} str |
+       {ch_dec:} ch_dec |
+       {ch_hex:} ch_hex ;
 
 parser_part = 'Parser' ign? rej? prod*;
 
-ign = 'Ignored' id ';' ;
+ign = 'Ignored' elem_list ';' ;
 
 rej = 'Rejected' elem_list ';' ;
 
-prod = id ptrans? '=' alts ';';
+prod = id ptrans? '=' alts priority* ';';
 
 ptrans = '{' '->' id '}';
 atrans = '{' '->' '}';
@@ -96,7 +105,15 @@ elem_list =
 
 elem =
        {id:} id |
-       {str:} str |
+       {str:} text |
        {star:} elem '*' |
        {ques:} elem '?' |
-       {plus:} elem '+' ;
+       {plus:} elem '+' |
+       {empty:} 'Empty' ;
+
+priority =
+       {left:} 'Left' alts |
+       {right:} 'Right' alts |
+       {unary:} 'Unary' alts ;
+
+tree_part = 'Tree' prod*;