diff options
Diffstat (limited to 'innobase/pars/pars0lex.l')
| -rw-r--r-- | innobase/pars/pars0lex.l | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/innobase/pars/pars0lex.l b/innobase/pars/pars0lex.l index 718dfc86646..7abb8b1d74e 100644 --- a/innobase/pars/pars0lex.l +++ b/innobase/pars/pars0lex.l @@ -4,6 +4,30 @@ SQL parser lexical analyzer: input file for the GNU Flex lexer generator (c) 1997 Innobase Oy Created 12/14/1997 Heikki Tuuri +Published under the GPL version 2 + +The InnoDB parser is frozen because MySQL takes care of SQL parsing. +Therefore we normally keep the InnoDB parser C files as they are, and do +not automatically generate them from pars0grm.y and pars0lex.l. + +How to make the InnoDB parser and lexer C files: + +1. First do + bison -d pars0grm.y + That generates pars0grm.tab.c and pars0grm.tab.h. + +2. Rename pars0grm.tab.c to pars0grm.c and pars0grm.tab.h to pars0grm.h. + +3. Copy pars0grm.h also to /innobase/include + +4. Do + flex pars0lex.l + That generates lex.yy.c. + +5. Rename lex.yy.c to lexyy.c. + +These instructions seem to work at least with bison-1.28 and flex-2.5.4 on +Linux. *******************************************************/ %{ @@ -19,11 +43,10 @@ Created 12/14/1997 Heikki Tuuri #define isatty(A) 0 #define malloc(A) mem_alloc(A) #define free(A) mem_free(A) -#define realloc(P, A) mem_realloc(P, A) +#define realloc(P, A) mem_realloc(P, A, __FILE__, __LINE__) #define exit(A) ut_a(0) -#define YY_INPUT(buf, result, max_size) pars_get_lex_chars(buf, &result,\ - max_size) +#define YY_INPUT(buf, result, max_size) pars_get_lex_chars(buf, &result, max_size) %} DIGIT [0-9] |