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| author | Timotej Lazar <timotej.lazar@fri.uni-lj.si> | 2016-05-15 22:05:07 +0200 |
|---|---|---|
| committer | Timotej Lazar <timotej.lazar@fri.uni-lj.si> | 2016-05-15 22:05:07 +0200 |
| commit | 13cc62c244a35fefe3c6995ad16a09275b984f8d (patch) | |
| tree | 0d4d82b2fd2224586420231582eb6271155c7ec3 /prolog | |
| parent | 53f1b9251440b263d1605b86090e71cf09f6aad1 (diff) | |
Support a | b notation for DCGs
Diffstat (limited to 'prolog')
| -rw-r--r-- | prolog/parser.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/prolog/parser.py b/prolog/parser.py index 8fe96da..1b0459b 100644 --- a/prolog/parser.py +++ b/prolog/parser.py @@ -22,6 +22,7 @@ from .util import Token # PARSER precedence = ( ('nonassoc', 'FROM', 'FROMDCG'), + ('right', 'PIPE'), ('right', 'IMPLIES'), ('right', 'NOT'), ('nonassoc', 'EQU', 'NEQU', 'EQ', 'NEQ', 'UNIV', 'IS', 'EQA', 'NEQA', 'LT', 'LE', 'GT', 'GE', 'LTL', 'LEL', 'GTL', 'GEL', 'IN', 'INS', 'THROUGH', 'EQFD', 'NEQFD', 'LTFD', 'LEFD', 'GTFD', 'GEFD'), @@ -32,7 +33,7 @@ precedence = ( ('nonassoc', 'UINTEGER', 'UREAL'), ('nonassoc', 'NAME', 'VARIABLE', 'STRING'), ('nonassoc', 'PERIOD'), - ('nonassoc', 'LBRACKET', 'RBRACKET', 'LPAREN', 'RPAREN', 'COMMA', 'SEMI', 'PIPE', 'LBRACE', 'RBRACE') + ('nonassoc', 'LBRACKET', 'RBRACKET', 'LPAREN', 'RPAREN', 'COMMA', 'SEMI', 'LBRACE', 'RBRACE') ) def make_token(p, n): @@ -137,6 +138,7 @@ def p_term_binary(p): | term GTL term | term GEL term + | term PIPE term | term THROUGH term | term IN term | term INS term |