florian/libdice
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differentiate libdice flex/bison with prefix "dp"

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This allows the library to be linked with other libraries that also
use flex and bison.
This commit is contained in:
Florian Stinglmayr 2018-05-11 16:57:55 +02:00
parent 7026e38df6
commit 07e05034fc
6 changed files with 27 additions and 21 deletions
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6
Makefile.am
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@ -1,4 +1,5 @@
AM_YFLAGS = -d
AM_LFLAGS = -P dp
BUILT_SOURCES = lib/dice_parse.h
lib_LTLIBRARIES = libdice.la
@ -6,13 +7,14 @@ libdice_la_SOURCES = lib/dice_lexer.l \
lib/dice_parse.y \
lib/dice.h \
lib/dice.c \
lib/diceexpr.c
lib/diceexpr.c \
lex.dp.c
include_HEADERS = lib/dice.h
AM_CFLAGS = -Ilib
libdice_la_LIBADD = ${BSD_LIBS}
libdice_la_LIBADD = ${BSD_LIBS} -lm
pkgconfig_DATA = libdice.pc

7
configure.ac
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@ -1,5 +1,5 @@
AC_PREREQ([2.69])
AC_INIT([libdice], [0.1], [florian@n0la.org])
AC_INIT([libdice], [0.2], [florian@n0la.org])
AM_INIT_AUTOMAKE([subdir-objects])
LT_INIT()
AC_CONFIG_HEADERS([config.h])
@ -18,9 +18,8 @@ AC_CHECK_FUNCS([arc4random_uniform],,
AC_CONFIG_FILES([Makefile tests/Makefile])
AC_SEARCH_LIBS([cos], [m], [], [
AC_MSG_ERROR([unable to find the cos() function])
])
AC_SEARCH_LIBS([sqrt], [m])
AC_SEARCH_LIBS([cos], [m])
PKG_INSTALLDIR
AC_CONFIG_FILES([libdice.pc])

24
lib/dice.c
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@ -30,12 +30,12 @@
#include <bsd/stdlib.h>
#endif
extern int yylex_init_extra(void *extra, void **state);
extern int yylex_destroy(void *state);
extern void yylex(void *state);
extern void yy_switch_to_buffer(void *buffer, void *scanner);
extern void *yy_scan_string(char const *s, void *scanner);
extern void yy_delete_buffer(void *b, void *scanner);
extern int dplex_init_extra(void *extra, void **state);
extern int dplex_destroy(void *state);
extern void dplex(void *state);
extern void dp_switch_to_buffer(void *buffer, void *scanner);
extern void *dp_scan_string(char const *s, void *scanner);
extern void dp_delete_buffer(void *b, void *scanner);
struct dice_
{
@ -115,14 +115,14 @@ bool dice_parse(dice_t d, char const *s)
return false;
}
yylex_init_extra(d, &scanner);
buffer = yy_scan_string(s, scanner);
yy_switch_to_buffer(buffer, scanner);
dplex_init_extra(d, &scanner);
buffer = dp_scan_string(s, scanner);
dp_switch_to_buffer(buffer, scanner);
ret = yyparse(scanner, d);
ret = dpparse(scanner, d);
yy_delete_buffer(buffer, scanner);
yylex_destroy(scanner);
dp_delete_buffer(buffer, scanner);
dplex_destroy(scanner);
if (ret) {
return false;

2
lib/dice_lexer.c Normal file
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@ -0,0 +1,2 @@
/* empty file, so that autotools has something to compile
*/

2
lib/dice_lexer.l
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@ -1,7 +1,9 @@
%option prefix="dp"
%option bison-bridge
%option reentrant
%{
#define YYSTYPE DPSTYPE
#include "dice.h"
#include "dice_parse.h"

7
lib/dice_parse.y
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@ -1,4 +1,5 @@
%define api.pure full
%define api.prefix {dp}
%parse-param {void *scanner} {dice_t dice}
%lex-param {void *scanner}
@ -6,14 +7,14 @@
%{
#include "dice.h"
extern int yylex(void *lval, void *scanner);
extern int dplex(void *lval, void *scanner);
void yyerror(void *scanner, dice_t dice, char const *err)
void dperror(void *scanner, dice_t dice, char const *err)
{
dice_set(dice, DICEOPTION_ERROR, err);
}
int yywrap(void)
int dpwrap(void)
{
return 1;
}