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| author | Kaz Kylheku <kaz@kylheku.com> | 2021-01-24 09:05:32 -0800 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2021-01-24 09:05:32 -0800 |
| commit | 8a5e2cba9577665a1da6c7d8a41072ca6c58fb9f (patch) | |
| tree | 4fa1ecf7b264d054d19a0fd64c4a540a06e982e3 /lex.yy.c.shipped | |
| parent | 8f5156f2c9fdc393aba091b30da4c58815bc0eaf (diff) | |
| download | txr-8a5e2cba9577665a1da6c7d8a41072ca6c58fb9f.tar.gz txr-8a5e2cba9577665a1da6c7d8a41072ca6c58fb9f.tar.bz2 txr-8a5e2cba9577665a1da6c7d8a41072ca6c58fb9f.zip | |
parser: fix bad precedence of @ token.
Whereas @a..@b parses and transforms to (rcons @a @a),
@(a)..@(a) goes to @(rcons a @(a)).
* parser.l (grammar): Under 248 compatibility or lower, the @
character now produces the OLD_AT token. Otherwise it produces
the '@' character, as before.
* parser.y (OLD_AT): New token replaces the '@' at the old
low precedence position. '@' is now at the highest precedence,
together with OLD_DOTDOT. (We don't care about interactions
between '@' and OLD_DOTDOT, because OLD_DOTDOT only exists in
185 compatibility, in which '@' is OLD_AT).
(meta): The two rules have to be unfortunately duplicated for
OLD_AT, since there is no BNF OR operator in Yacc.
* txr.1: Compat note added.
* lex.yy.c.shipped: Updated.
* y.tab.c.shipped, y.tab.h.shipped: Likewise.
Diffstat (limited to 'lex.yy.c.shipped')
| -rw-r--r-- | lex.yy.c.shipped | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lex.yy.c.shipped b/lex.yy.c.shipped index 519bae2c..1292479f 100644 --- a/lex.yy.c.shipped +++ b/lex.yy.c.shipped @@ -4651,7 +4651,7 @@ YY_RULE_SETUP #line 608 "parser.l" { yylval->lineno = yyextra->lineno; - return yytext[0]; + return (opt_compat && opt_compat <= 248) ? OLD_AT : '@'; } YY_BREAK case 57: |