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- Log -----------------------------------------------------------------
commit e50a5c3d682f5d11aa00be12fb93e766315ff35f
Author: Michael Poole <[email protected]>
Date: Sat Dec 11 09:59:08 2021 -0500
Support primitive parser generators like byacc
yacc expects zero or negative from yylex() on EOF, but not all
implementations define YYEOF in y.tab.h. Define it if needed.
And most variants of yacc seem to use 256 as an error token, but that is
not specified and not always exported. So define a new token (TOKERR)
to indicate a tokenization error.
Fixes #15
diff --git a/include/ircd_lexer.h b/include/ircd_lexer.h
index 11adf3b8..8b054474 100644
--- a/include/ircd_lexer.h
+++ b/include/ircd_lexer.h
@@ -28,4 +28,6 @@ extern const char *lexer_position(int *lineno);
extern int lexer_allowed(unsigned int bitnum);
extern void deinit_lexer(void);
+extern int yyparse();
+
#endif /* INCLUDED_ircd_lexer_h */
diff --git a/ircd/ircd_lexer.c b/ircd/ircd_lexer.c
index 8005269d..75e61223 100644
--- a/ircd/ircd_lexer.c
+++ b/ircd/ircd_lexer.c
@@ -297,11 +297,14 @@ int yylex(void)
ssize_t nbr;
char save;
+#if !defined(YYEOF)
+# define YYEOF 0
+#endif
if (!yy_in)
return YYEOF;
if (yy_in->fd < 0)
- return YYerror;
+ return TOKERR;
for (;;) {
pos = yy_in->buf + yy_in->tok_ofs;
diff --git a/ircd/ircd_parser.y b/ircd/ircd_parser.y
index dfa311f7..fbafc8c2 100644
--- a/ircd/ircd_parser.y
+++ b/ircd/ircd_parser.y
@@ -220,9 +220,9 @@ static void free_slist(struct SLink **link) {
%token IPCHECK
%token EXCEPT
%token INCLUDE
-%token LINESYNC
%token FROM
%token TEOF
+%token TOKERR
/* and now a lot of privileges... */
%token TPRIV_CHAN_LIMIT TPRIV_MODE_LCHAN TPRIV_DEOP_LCHAN TPRIV_WALK_LCHAN
%token TPRIV_LOCAL_KILL TPRIV_REHASH TPRIV_RESTART TPRIV_DIE
-----------------------------------------------------------------------
Summary of changes:
include/ircd_lexer.h | 2 ++
ircd/ircd_lexer.c | 5 ++++-
ircd/ircd_parser.y | 2 +-
3 files changed, 7 insertions(+), 2 deletions(-)
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