nik/lush
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

new implementation for Generic Buffer manipulation (using userdata as

Browse Source 
temporary buffer space)
This commit is contained in:
Roberto Ierusalimschy
2010-04-09 13:14:46 -03:00
parent 055104f5b6
commit 9100f7479a
3 changed files with 94 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
lauxlib.h
View File

@@ -1,5 +1,5 @@
/*
** $Id: lauxlib.h,v 1.100 2010/01/21 16:49:21 roberto Exp roberto $
** $Id: lauxlib.h,v 1.101 2010/03/17 21:37:37 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@@ -122,28 +122,31 @@ LUALIB_API int (luaL_cpcall) (lua_State *L, lua_CFunction f, int nargs,
** =======================================================
*/
typedef struct luaL_Buffer {
char *p; /* current position in buffer */
int lvl; /* number of strings in the stack (level) */
char *b; /* buffer address */
size_t size; /* buffer size */
size_t n; /* number of characters in buffer */
lua_State *L;
char buffer[LUAL_BUFFERSIZE];
char initb[LUAL_BUFFERSIZE]; /* initial buffer */
} luaL_Buffer;
#define luaL_addchar(B,c) \
((void)((B)->p < ((B)->buffer+LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \
(*(B)->p++ = (char)(c)))
#define luaL_addsize(B,n) ((B)->p += (n))
#define luaL_addchar(B,c) \
((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \
((B)->b[(B)->n++] = (c)))
#define luaL_addsize(B,s) ((B)->n += (s))
LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
LUALIB_API char *(luaL_prepbuffer) (luaL_Buffer *B);
LUALIB_API char *(luaL_prepbuffsize) (luaL_Buffer *B, size_t sz);
LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
LUALIB_API void luaL_pushresultsize (luaL_Buffer *B, size_t sz);
LUALIB_API char *(luaL_buffinitsize) (lua_State *L, luaL_Buffer *B, size_t sz);
#define luaL_prepbuffer(B) luaL_prepbuffsize(B, LUAL_BUFFERSIZE)
/* }====================================================== */