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More permissive syntax (trailing commas/semicols) 

Allowing trailing commas and in parameters declarations
This commit is contained in:
Gwenal Delaval 2013-08-02 14:09:18 +02:00
parent bb2c3c4060
commit 6e791e3199
1 changed files with 10 additions and 3 deletions
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13
compiler/heptagon/parsing/hept_parser.mly
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@ -142,7 +142,7 @@ optsnlist(S,x) :
/* Separated list with delimiter, even for empty list*/
adelim_slist(S, L, R, x) :
| L R {[]}
| L l=snlist(S, x) R {l}
| L l=optsnlist(S, x) R {l}
%inline tuple(x) : LPAREN h=x COMMA t=snlist(COMMA,x) RPAREN { h::t }
%inline soption(P,x):
@ -230,7 +230,8 @@ params:
;
nonmt_params:
| param { $1 }
| param { $1 }
| param SEMICOL { $1 }
| param SEMICOL nonmt_params { $1 @ $3 }
;
@ -247,6 +248,7 @@ out_params:
nonmt_out_params:
| var_last { $1 }
| var_last SEMICOL { $1 }
| var_last SEMICOL nonmt_out_params { $1 @ $3 }
;
@ -475,10 +477,15 @@ pat:
;
nonmtexps:
| exp {[$1]}
| exp opt_comma {[$1]}
| exp COMMA nonmtexps {$1 :: $3}
;
opt_comma:
| {}
| COMMA {}
;
exps:
| /* empty */ {[]}
| nonmtexps {$1}