Package: byacc
Version: 20100216-1
Severity: wishlist
Tags: patch
The attached patch implements support for using YYLEX_PARAM. This is useful when
building a reentrant lexer with flex.
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages byacc depends on:
ii libc6 2.11.1-2 Embedded GNU C Library: Shared lib
byacc recommends no packages.
byacc suggests no packages.
-- no debconf information
Be able to set options via YYLEX_PARAM, useful when using reentrant flex.
--- byacc-20100216.orig/skeleton.c
+++ byacc-20100216/skeleton.c
@@ -55,6 +55,17 @@ const char *xdecls[] =
"",
"extern int YYPARSE_DECL();",
"",
+ "/* compatibility with flex */",
+ "#ifdef YYLEX_PARAM",
+ "#define YYLEX_DECL() yylex(void *YYLEX_PARAM)",
+ "#define YYLEX yylex(YYLEX_PARAM)",
+ "#else",
+ "#define YYLEX_DECL() yylex(void)",
+ "#define YYLEX yylex()",
+ "#endif",
+ "",
+ "extern int YYLEX_DECL();",
+ "",
0
};
@@ -232,7 +243,7 @@ const char *body_2[] =
" if ((yyn = yydefred[yystate]) != 0) goto yyreduce;",
" if (yychar < 0)",
" {",
- " if ((yychar = yylex()) < 0) yychar = 0;",
+ " if ((yychar = YYLEX) < 0) yychar = 0;",
"#if YYDEBUG",
" if (yydebug)",
" {",
@@ -368,7 +379,7 @@ const char *trailer[] =
" *++yystack.l_mark = yyval;",
" if (yychar < 0)",
" {",
- " if ((yychar = yylex()) < 0) yychar = 0;",
+ " if ((yychar = YYLEX) < 0) yychar = 0;",
"#if YYDEBUG",
" if (yydebug)",
" {",
