summaryrefslogtreecommitdiffstats
path: root/parser.l
diff options
context:
space:
mode:
authorKaz Kylheku <kaz@kylheku.com>2014-01-26 14:38:48 -0800
committerKaz Kylheku <kaz@kylheku.com>2014-01-26 14:38:48 -0800
commita0533a8a308b4e17e50113b0e8ec5a61cd138ae1 (patch)
treedb60ec5f24ae591958909947f8b112c8debc1a32 /parser.l
parent24f50b052eb8f8fe3a37d60d0a9e6daebab7f84a (diff)
downloadtxr-a0533a8a308b4e17e50113b0e8ec5a61cd138ae1.tar.gz
txr-a0533a8a308b4e17e50113b0e8ec5a61cd138ae1.tar.bz2
txr-a0533a8a308b4e17e50113b0e8ec5a61cd138ae1.zip
Sigh; more lexical-syntactic hacks. This adds handling
for the @' combination, as in @(bind a @'(foo ,bar)) * parser.l: Handle the new METAQUO token. * parser.y (METAQUO): New token. (meta_expr): New "METAQUO expr" case. Added missing METABKT error handling case.
Diffstat (limited to 'parser.l')
-rw-r--r--parser.l23
1 files changed, 17 insertions, 6 deletions
diff --git a/parser.l b/parser.l
index 0dca7331..cc348cc2 100644
--- a/parser.l
+++ b/parser.l
@@ -432,17 +432,28 @@ UONLY {U2}{U}|{U3}{U}{U}|{U4}{U}{U}{U}
return yytext[0];
}
-<SPECIAL>[(\[] |
-<NESTED,BRACED>@?[(\[] {
+<SPECIAL,NESTED,BRACED>[(\[] {
yy_push_state(NESTED);
- if (yytext[0] == '@') {
- yylval.chr = yytext[1];
- return yytext[1] == '(' ? METAPAR : METABKT;
- }
yylval.lineno = lineno;
return yytext[0];
}
+<NESTED,BRACED>@[(\['] {
+ yylval.chr = yytext[1];
+ yylval.lineno = lineno;
+ switch (yytext[1]) {
+ case '(':
+ yy_push_state(NESTED);
+ return METAPAR;
+ case '[':
+ yy_push_state(NESTED);
+ return METABKT;
+ default:
+ case '\'':
+ return METAQUO;
+ }
+}
+
<NESTED>,[*] {
yylval.chr = '*';
return SPLICE;