1993-07-28 17:18:00 +04:00
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/*
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2002-04-03 00:43:08 +04:00
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** $Id: lstrlib.c,v 1.79 2002/03/20 12:54:08 roberto Exp roberto $
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1999-12-27 20:33:22 +03:00
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** Standard library for string operations and pattern-matching
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1997-09-16 23:25:59 +04:00
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** See Copyright Notice in lua.h
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1993-07-28 17:18:00 +04:00
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*/
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1993-12-17 21:41:19 +03:00
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1997-09-16 23:25:59 +04:00
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#include <ctype.h>
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2000-05-24 17:54:49 +04:00
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#include <stddef.h>
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1995-10-09 15:49:21 +03:00
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#include <stdio.h>
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1995-02-02 23:05:37 +03:00
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#include <stdlib.h>
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1997-09-16 23:25:59 +04:00
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#include <string.h>
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1993-07-28 17:18:00 +04:00
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#include "lua.h"
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2000-06-12 17:52:05 +04:00
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#include "lauxlib.h"
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1994-08-17 19:10:04 +04:00
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#include "lualib.h"
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1993-07-28 17:18:00 +04:00
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1995-02-06 22:37:51 +03:00
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2001-11-28 23:13:13 +03:00
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/* macro to `unsign' a character */
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#ifndef uchar
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#define uchar(c) ((unsigned char)(c))
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#endif
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2001-02-22 21:59:59 +03:00
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typedef long sint32; /* a signed version for size_t */
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2000-11-24 20:39:56 +03:00
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1997-03-27 01:23:15 +03:00
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2000-08-28 21:57:04 +04:00
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static int str_len (lua_State *L) {
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2000-05-24 17:54:49 +04:00
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size_t l;
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1999-11-22 16:12:07 +03:00
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luaL_check_lstr(L, 1, &l);
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lua_pushnumber(L, l);
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2000-08-28 21:57:04 +04:00
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return 1;
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1996-09-16 22:02:40 +04:00
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}
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1995-02-06 22:37:51 +03:00
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1996-08-01 18:55:33 +04:00
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2000-11-24 20:39:56 +03:00
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static sint32 posrelat (sint32 pos, size_t len) {
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1998-03-06 19:54:42 +03:00
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/* relative string position: negative means back from end */
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2000-11-24 20:39:56 +03:00
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return (pos>=0) ? pos : (sint32)len+pos+1;
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1997-12-17 23:48:58 +03:00
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}
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2000-08-28 21:57:04 +04:00
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static int str_sub (lua_State *L) {
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2000-05-24 17:54:49 +04:00
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size_t l;
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2001-11-28 23:13:13 +03:00
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const char *s = luaL_check_lstr(L, 1, &l);
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2000-11-24 20:39:56 +03:00
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sint32 start = posrelat(luaL_check_long(L, 2), l);
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sint32 end = posrelat(luaL_opt_long(L, 3, -1), l);
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1998-12-01 21:41:25 +03:00
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if (start < 1) start = 1;
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2000-11-24 20:39:56 +03:00
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if (end > (sint32)l) end = l;
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1998-12-01 21:41:25 +03:00
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if (start <= end)
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1999-11-22 16:12:07 +03:00
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lua_pushlstring(L, s+start-1, end-start+1);
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2001-11-28 23:13:13 +03:00
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else lua_pushliteral(L, "");
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2000-08-28 21:57:04 +04:00
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return 1;
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1993-07-28 17:18:00 +04:00
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}
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1997-09-16 23:25:59 +04:00
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2000-08-28 21:57:04 +04:00
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static int str_lower (lua_State *L) {
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2000-05-24 17:54:49 +04:00
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size_t l;
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size_t i;
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2000-09-11 21:38:42 +04:00
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luaL_Buffer b;
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2001-11-28 23:13:13 +03:00
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const char *s = luaL_check_lstr(L, 1, &l);
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2000-09-11 21:38:42 +04:00
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luaL_buffinit(L, &b);
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1998-03-06 19:54:42 +03:00
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for (i=0; i<l; i++)
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2001-02-22 20:15:18 +03:00
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luaL_putchar(&b, tolower(uchar(s[i])));
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2000-09-11 21:38:42 +04:00
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luaL_pushresult(&b);
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2000-08-28 21:57:04 +04:00
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return 1;
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1996-09-16 22:02:40 +04:00
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}
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1997-09-16 23:25:59 +04:00
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2000-08-28 21:57:04 +04:00
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static int str_upper (lua_State *L) {
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2000-05-24 17:54:49 +04:00
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size_t l;
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size_t i;
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2000-09-11 21:38:42 +04:00
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luaL_Buffer b;
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2001-11-28 23:13:13 +03:00
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const char *s = luaL_check_lstr(L, 1, &l);
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2000-09-11 21:38:42 +04:00
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luaL_buffinit(L, &b);
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1998-03-06 19:54:42 +03:00
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for (i=0; i<l; i++)
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2001-02-22 20:15:18 +03:00
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luaL_putchar(&b, toupper(uchar(s[i])));
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2000-09-11 21:38:42 +04:00
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luaL_pushresult(&b);
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2000-08-28 21:57:04 +04:00
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return 1;
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1995-10-09 15:49:21 +03:00
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}
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1993-07-28 17:18:00 +04:00
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2000-08-28 21:57:04 +04:00
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static int str_rep (lua_State *L) {
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2000-05-24 17:54:49 +04:00
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size_t l;
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2000-09-11 21:38:42 +04:00
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luaL_Buffer b;
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2001-11-28 23:13:13 +03:00
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const char *s = luaL_check_lstr(L, 1, &l);
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1999-11-22 16:12:07 +03:00
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int n = luaL_check_int(L, 2);
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2000-09-11 21:38:42 +04:00
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luaL_buffinit(L, &b);
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1996-09-20 22:20:44 +04:00
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while (n-- > 0)
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2000-09-11 21:38:42 +04:00
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luaL_addlstring(&b, s, l);
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luaL_pushresult(&b);
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2000-08-28 21:57:04 +04:00
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return 1;
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1996-09-20 22:20:44 +04:00
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}
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1997-09-16 23:25:59 +04:00
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2001-10-16 21:41:43 +04:00
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static int str_concat (lua_State *L) {
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luaL_Buffer b;
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size_t lsep;
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const char *sep = luaL_opt_lstr(L, 2, "", &lsep);
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int n, i;
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2001-12-05 23:15:18 +03:00
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luaL_check_type(L, 1, LUA_TTABLE);
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2001-10-16 21:41:43 +04:00
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luaL_buffinit(L, &b);
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n = lua_getn(L, 1);
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for (i=1; i<=n; i++) {
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lua_rawgeti(L, 1, i);
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luaL_addvalue(&b);
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if (i != n)
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luaL_addlstring(&b, sep, lsep);
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}
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luaL_pushresult(&b);
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return 1;
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}
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2000-08-28 21:57:04 +04:00
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static int str_byte (lua_State *L) {
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2000-05-24 17:54:49 +04:00
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size_t l;
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2001-11-28 23:13:13 +03:00
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const char *s = luaL_check_lstr(L, 1, &l);
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2000-11-24 20:39:56 +03:00
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sint32 pos = posrelat(luaL_opt_long(L, 2, 1), l);
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2001-11-28 23:13:13 +03:00
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luaL_arg_check(L, 0 < pos && (size_t)(pos) <= l, 2, "out of range");
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2001-02-22 20:15:18 +03:00
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lua_pushnumber(L, uchar(s[pos-1]));
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2000-08-28 21:57:04 +04:00
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return 1;
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1996-08-01 18:55:33 +04:00
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}
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1999-01-04 15:53:24 +03:00
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2000-08-28 21:57:04 +04:00
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static int str_char (lua_State *L) {
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int n = lua_gettop(L); /* number of arguments */
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int i;
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2000-09-11 21:38:42 +04:00
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luaL_Buffer b;
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luaL_buffinit(L, &b);
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2000-08-28 21:57:04 +04:00
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for (i=1; i<=n; i++) {
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1999-11-22 16:12:07 +03:00
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int c = luaL_check_int(L, i);
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2001-11-28 23:13:13 +03:00
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luaL_arg_check(L, uchar(c) == c, i, "invalid value");
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2001-02-22 20:15:18 +03:00
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luaL_putchar(&b, uchar(c));
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1998-06-01 02:20:45 +04:00
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}
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2000-09-11 21:38:42 +04:00
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luaL_pushresult(&b);
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2000-08-28 21:57:04 +04:00
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return 1;
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1998-03-24 23:14:25 +03:00
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}
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1996-08-01 18:55:33 +04:00
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1997-09-16 23:25:59 +04:00
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1999-01-04 15:53:24 +03:00
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1997-09-16 23:25:59 +04:00
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/*
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1999-01-04 15:53:24 +03:00
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** {======================================================
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1997-09-16 23:25:59 +04:00
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** PATTERN MATCHING
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** =======================================================
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*/
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2000-03-03 17:58:26 +03:00
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#ifndef MAX_CAPTURES
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#define MAX_CAPTURES 32 /* arbitrary limit */
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1999-06-17 21:04:03 +04:00
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#endif
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1997-09-16 23:25:59 +04:00
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2000-12-04 17:43:06 +03:00
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#define CAP_UNFINISHED (-1)
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#define CAP_POSITION (-2)
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2000-11-23 16:49:35 +03:00
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typedef struct MatchState {
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2001-11-28 23:13:13 +03:00
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const char *src_init; /* init of source string */
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const char *src_end; /* end (`\0') of source string */
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2002-02-09 01:39:36 +03:00
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lua_State *L;
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1999-01-04 15:53:24 +03:00
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int level; /* total number of captures (finished or unfinished) */
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1997-12-15 20:58:49 +03:00
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struct {
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2001-11-28 23:13:13 +03:00
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const char *init;
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2000-12-04 17:43:06 +03:00
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sint32 len;
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2000-03-03 17:58:26 +03:00
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} capture[MAX_CAPTURES];
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2000-11-23 16:49:35 +03:00
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} MatchState;
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1997-09-16 23:25:59 +04:00
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1996-08-01 18:55:33 +04:00
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2001-11-28 23:13:13 +03:00
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#define ESC '%'
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#define SPECIALS "^$*+?.([%-"
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1996-08-01 18:55:33 +04:00
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1997-09-16 23:25:59 +04:00
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2000-11-23 16:49:35 +03:00
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static int check_capture (MatchState *ms, int l) {
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2001-11-28 23:13:13 +03:00
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l -= '1';
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2000-12-04 17:43:06 +03:00
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if (l < 0 || l >= ms->level || ms->capture[l].len == CAP_UNFINISHED)
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2001-11-28 23:13:13 +03:00
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lua_error(ms->L, "invalid capture index");
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1997-09-16 23:25:59 +04:00
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return l;
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}
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2000-11-23 16:49:35 +03:00
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static int capture_to_close (MatchState *ms) {
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int level = ms->level;
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1997-09-16 23:25:59 +04:00
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for (level--; level>=0; level--)
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2000-12-04 17:43:06 +03:00
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if (ms->capture[level].len == CAP_UNFINISHED) return level;
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2001-11-28 23:13:13 +03:00
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lua_error(ms->L, "invalid pattern capture");
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1997-09-16 23:25:59 +04:00
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return 0; /* to avoid warnings */
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1996-08-01 18:55:33 +04:00
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}
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1997-09-16 23:25:59 +04:00
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2001-11-28 23:13:13 +03:00
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static const char *luaI_classend (MatchState *ms, const char *p) {
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1999-05-05 23:23:11 +04:00
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switch (*p++) {
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case ESC:
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2001-11-28 23:13:13 +03:00
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if (*p == '\0')
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lua_error(ms->L, "malformed pattern (ends with `%')");
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1999-05-05 23:23:11 +04:00
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return p+1;
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2001-11-28 23:13:13 +03:00
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case '[':
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if (*p == '^') p++;
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2001-02-22 21:59:59 +03:00
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do { /* look for a `]' */
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2001-11-28 23:13:13 +03:00
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if (*p == '\0')
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lua_error(ms->L, "malformed pattern (missing `]')");
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if (*(p++) == ESC && *p != '\0')
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2001-03-02 20:40:08 +03:00
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p++; /* skip escapes (e.g. `%]') */
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2001-11-28 23:13:13 +03:00
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} while (*p != ']');
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1999-05-05 23:23:11 +04:00
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return p+1;
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default:
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return p;
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}
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1997-09-16 23:25:59 +04:00
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}
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2001-11-28 23:13:13 +03:00
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static int match_class (int c, int cl) {
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1996-08-01 18:55:33 +04:00
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int res;
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2001-08-31 00:55:58 +04:00
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switch (tolower(cl)) {
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2001-11-28 23:13:13 +03:00
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case 'a' : res = isalpha(c); break;
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case 'c' : res = iscntrl(c); break;
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case 'd' : res = isdigit(c); break;
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case 'l' : res = islower(c); break;
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case 'p' : res = ispunct(c); break;
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case 's' : res = isspace(c); break;
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case 'u' : res = isupper(c); break;
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case 'w' : res = isalnum(c); break;
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case 'x' : res = isxdigit(c); break;
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case 'z' : res = (c == 0); break;
|
1996-08-01 18:55:33 +04:00
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default: return (cl == c);
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}
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2001-08-31 00:55:58 +04:00
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return (islower(cl) ? res : !res);
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1996-08-01 18:55:33 +04:00
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}
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1997-09-16 23:25:59 +04:00
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2001-11-28 23:13:13 +03:00
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static int matchbracketclass (int c, const char *p, const char *ec) {
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1999-05-05 23:23:11 +04:00
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int sig = 1;
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2001-11-28 23:13:13 +03:00
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if (*(p+1) == '^') {
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1999-05-05 23:23:11 +04:00
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sig = 0;
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2001-02-22 21:59:59 +03:00
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p++; /* skip the `^' */
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1999-05-05 23:23:11 +04:00
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}
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2001-03-02 20:40:08 +03:00
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while (++p < ec) {
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1999-05-05 23:23:11 +04:00
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if (*p == ESC) {
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p++;
|
2001-02-22 20:15:18 +03:00
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if (match_class(c, *p))
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1999-05-05 23:23:11 +04:00
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return sig;
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}
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2001-11-28 23:13:13 +03:00
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else if ((*(p+1) == '-') && (p+2 < ec)) {
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1999-05-05 23:23:11 +04:00
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p+=2;
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2001-08-31 00:55:58 +04:00
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if (uchar(*(p-2)) <= c && c <= uchar(*p))
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1999-05-05 23:23:11 +04:00
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return sig;
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}
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2001-08-31 00:55:58 +04:00
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else if (uchar(*p) == c) return sig;
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1999-05-05 23:23:11 +04:00
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}
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return !sig;
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}
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2001-11-28 23:13:13 +03:00
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static int luaI_singlematch (int c, const char *p, const char *ep) {
|
1996-08-01 18:55:33 +04:00
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switch (*p) {
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2001-11-28 23:13:13 +03:00
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case '.': /* matches any char */
|
1998-03-06 19:54:42 +03:00
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return 1;
|
1997-09-16 23:25:59 +04:00
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case ESC:
|
2001-02-22 20:15:18 +03:00
|
|
|
return match_class(c, *(p+1));
|
2001-11-28 23:13:13 +03:00
|
|
|
case '[':
|
1999-05-05 23:23:11 +04:00
|
|
|
return matchbracketclass(c, p, ep-1);
|
1997-09-16 23:25:59 +04:00
|
|
|
default:
|
2001-08-31 00:55:58 +04:00
|
|
|
return (uchar(*p) == c);
|
1996-08-01 18:55:33 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *match (MatchState *ms, const char *s, const char *p);
|
1999-05-05 23:23:11 +04:00
|
|
|
|
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *matchbalance (MatchState *ms, const char *s,
|
|
|
|
const char *p) {
|
1999-05-05 23:23:11 +04:00
|
|
|
if (*p == 0 || *(p+1) == 0)
|
2001-11-28 23:13:13 +03:00
|
|
|
lua_error(ms->L, "unbalanced pattern");
|
1999-05-05 23:23:11 +04:00
|
|
|
if (*s != *p) return NULL;
|
1996-11-20 16:47:59 +03:00
|
|
|
else {
|
1999-05-05 23:23:11 +04:00
|
|
|
int b = *p;
|
|
|
|
int e = *(p+1);
|
1996-11-20 16:47:59 +03:00
|
|
|
int cont = 1;
|
2000-11-23 16:49:35 +03:00
|
|
|
while (++s < ms->src_end) {
|
1996-11-20 16:47:59 +03:00
|
|
|
if (*s == e) {
|
|
|
|
if (--cont == 0) return s+1;
|
|
|
|
}
|
|
|
|
else if (*s == b) cont++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL; /* string ends out of balance */
|
|
|
|
}
|
|
|
|
|
1997-09-16 23:25:59 +04:00
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *max_expand (MatchState *ms, const char *s,
|
|
|
|
const char *p, const char *ep) {
|
2000-11-24 20:39:56 +03:00
|
|
|
sint32 i = 0; /* counts maximum expand for item */
|
2001-08-31 00:55:58 +04:00
|
|
|
while ((s+i)<ms->src_end && luaI_singlematch(uchar(*(s+i)), p, ep))
|
1999-05-05 23:23:11 +04:00
|
|
|
i++;
|
2000-08-31 17:30:22 +04:00
|
|
|
/* keeps trying to match with the maximum repetitions */
|
1999-05-05 23:23:11 +04:00
|
|
|
while (i>=0) {
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *res = match(ms, (s+i), ep+1);
|
1999-05-05 23:23:11 +04:00
|
|
|
if (res) return res;
|
|
|
|
i--; /* else didn't match; reduce 1 repetition to try again */
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *min_expand (MatchState *ms, const char *s,
|
|
|
|
const char *p, const char *ep) {
|
1999-05-05 23:23:11 +04:00
|
|
|
for (;;) {
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *res = match(ms, s, ep+1);
|
1999-05-05 23:23:11 +04:00
|
|
|
if (res != NULL)
|
|
|
|
return res;
|
2001-08-31 00:55:58 +04:00
|
|
|
else if (s<ms->src_end && luaI_singlematch(uchar(*s), p, ep))
|
1999-05-05 23:23:11 +04:00
|
|
|
s++; /* try with one more repetition */
|
|
|
|
else return NULL;
|
1997-09-16 23:25:59 +04:00
|
|
|
}
|
1999-05-05 23:23:11 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *start_capture (MatchState *ms, const char *s,
|
|
|
|
const char *p, int what) {
|
|
|
|
const char *res;
|
2000-11-23 16:49:35 +03:00
|
|
|
int level = ms->level;
|
2001-11-28 23:13:13 +03:00
|
|
|
if (level >= MAX_CAPTURES) lua_error(ms->L, "too many captures");
|
2000-11-23 16:49:35 +03:00
|
|
|
ms->capture[level].init = s;
|
2000-12-04 17:43:06 +03:00
|
|
|
ms->capture[level].len = what;
|
2000-11-23 16:49:35 +03:00
|
|
|
ms->level = level+1;
|
2000-12-04 17:43:06 +03:00
|
|
|
if ((res=match(ms, s, p)) == NULL) /* match failed? */
|
2000-11-23 16:49:35 +03:00
|
|
|
ms->level--; /* undo capture */
|
1999-05-05 23:23:11 +04:00
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *end_capture (MatchState *ms, const char *s,
|
|
|
|
const char *p) {
|
2000-11-23 16:49:35 +03:00
|
|
|
int l = capture_to_close(ms);
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *res;
|
2000-11-23 16:49:35 +03:00
|
|
|
ms->capture[l].len = s - ms->capture[l].init; /* close capture */
|
2000-12-04 17:43:06 +03:00
|
|
|
if ((res = match(ms, s, p)) == NULL) /* match failed? */
|
|
|
|
ms->capture[l].len = CAP_UNFINISHED; /* undo capture */
|
1999-05-05 23:23:11 +04:00
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *match_capture (MatchState *ms, const char *s, int l) {
|
2001-03-02 20:40:08 +03:00
|
|
|
size_t len;
|
|
|
|
l = check_capture(ms, l);
|
|
|
|
len = ms->capture[l].len;
|
2000-11-23 16:49:35 +03:00
|
|
|
if ((size_t)(ms->src_end-s) >= len &&
|
|
|
|
memcmp(ms->capture[l].init, s, len) == 0)
|
1999-05-05 23:23:11 +04:00
|
|
|
return s+len;
|
|
|
|
else return NULL;
|
1997-09-16 23:25:59 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *match (MatchState *ms, const char *s, const char *p) {
|
1996-08-01 18:55:33 +04:00
|
|
|
init: /* using goto's to optimize tail recursion */
|
|
|
|
switch (*p) {
|
2001-11-28 23:13:13 +03:00
|
|
|
case '(': /* start capture */
|
|
|
|
if (*(p+1) == ')') /* position capture? */
|
2000-12-04 17:43:06 +03:00
|
|
|
return start_capture(ms, s, p+2, CAP_POSITION);
|
|
|
|
else
|
|
|
|
return start_capture(ms, s, p+1, CAP_UNFINISHED);
|
2001-11-28 23:13:13 +03:00
|
|
|
case ')': /* end capture */
|
2000-12-04 17:43:06 +03:00
|
|
|
return end_capture(ms, s, p+1);
|
1999-05-05 23:23:11 +04:00
|
|
|
case ESC: /* may be %[0-9] or %b */
|
2001-02-22 20:15:18 +03:00
|
|
|
if (isdigit(uchar(*(p+1)))) { /* capture? */
|
2000-11-23 16:49:35 +03:00
|
|
|
s = match_capture(ms, s, *(p+1));
|
1999-05-05 23:23:11 +04:00
|
|
|
if (s == NULL) return NULL;
|
2000-11-23 16:49:35 +03:00
|
|
|
p+=2; goto init; /* else return match(ms, s, p+2) */
|
1999-05-05 23:23:11 +04:00
|
|
|
}
|
2001-11-28 23:13:13 +03:00
|
|
|
else if (*(p+1) == 'b') { /* balanced string? */
|
2000-11-23 16:49:35 +03:00
|
|
|
s = matchbalance(ms, s, p+2);
|
1999-05-05 23:23:11 +04:00
|
|
|
if (s == NULL) return NULL;
|
2000-11-23 16:49:35 +03:00
|
|
|
p+=4; goto init; /* else return match(ms, s, p+4); */
|
1999-05-05 23:23:11 +04:00
|
|
|
}
|
|
|
|
else goto dflt; /* case default */
|
2001-11-28 23:13:13 +03:00
|
|
|
case '\0': /* end of pattern */
|
1999-04-30 18:12:05 +04:00
|
|
|
return s; /* match succeeded */
|
2001-11-28 23:13:13 +03:00
|
|
|
case '$':
|
|
|
|
if (*(p+1) == '\0') /* is the `$' the last char in pattern? */
|
2000-11-23 16:49:35 +03:00
|
|
|
return (s == ms->src_end) ? s : NULL; /* check end of string */
|
1999-05-05 23:23:11 +04:00
|
|
|
else goto dflt;
|
|
|
|
default: dflt: { /* it is a pattern item */
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *ep = luaI_classend(ms, p); /* points to what is next */
|
2001-08-31 00:55:58 +04:00
|
|
|
int m = s<ms->src_end && luaI_singlematch(uchar(*s), p, ep);
|
1996-08-01 18:55:33 +04:00
|
|
|
switch (*ep) {
|
2001-11-28 23:13:13 +03:00
|
|
|
case '?': { /* optional */
|
|
|
|
const char *res;
|
2000-11-23 16:49:35 +03:00
|
|
|
if (m && ((res=match(ms, s+1, ep+1)) != NULL))
|
1998-01-09 17:44:55 +03:00
|
|
|
return res;
|
2000-11-23 16:49:35 +03:00
|
|
|
p=ep+1; goto init; /* else return match(ms, s, ep+1); */
|
1998-01-09 17:44:55 +03:00
|
|
|
}
|
2001-11-28 23:13:13 +03:00
|
|
|
case '*': /* 0 or more repetitions */
|
2000-11-23 16:49:35 +03:00
|
|
|
return max_expand(ms, s, p, ep);
|
2001-11-28 23:13:13 +03:00
|
|
|
case '+': /* 1 or more repetitions */
|
2000-11-23 16:49:35 +03:00
|
|
|
return (m ? max_expand(ms, s+1, p, ep) : NULL);
|
2001-11-28 23:13:13 +03:00
|
|
|
case '-': /* 0 or more repetitions (minimum) */
|
2000-11-23 16:49:35 +03:00
|
|
|
return min_expand(ms, s, p, ep);
|
1996-08-01 18:55:33 +04:00
|
|
|
default:
|
1999-05-05 23:23:11 +04:00
|
|
|
if (!m) return NULL;
|
2000-11-23 16:49:35 +03:00
|
|
|
s++; p=ep; goto init; /* else return match(ms, s+1, ep); */
|
1996-08-01 18:55:33 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1997-09-16 23:25:59 +04:00
|
|
|
|
1999-11-11 19:45:04 +03:00
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *lmemfind (const char *s1, size_t l1,
|
|
|
|
const char *s2, size_t l2) {
|
2000-06-12 18:37:18 +04:00
|
|
|
if (l2 == 0) return s1; /* empty strings are everywhere */
|
|
|
|
else if (l2 > l1) return NULL; /* avoids a negative `l1' */
|
1999-11-11 19:45:04 +03:00
|
|
|
else {
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *init; /* to search for a `*s2' inside `s1' */
|
1999-11-11 19:45:04 +03:00
|
|
|
l2--; /* 1st char will be checked by `memchr' */
|
|
|
|
l1 = l1-l2; /* `s2' cannot be found after that */
|
2001-11-28 23:13:13 +03:00
|
|
|
while (l1 > 0 && (init = (const char *)memchr(s1, *s2, l1)) != NULL) {
|
1999-11-11 19:45:04 +03:00
|
|
|
init++; /* 1st char is already checked */
|
|
|
|
if (memcmp(init, s2+1, l2) == 0)
|
|
|
|
return init-1;
|
|
|
|
else { /* correct `l1' and `s1' to try again */
|
|
|
|
l1 -= init-s1;
|
|
|
|
s1 = init;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL; /* not found */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-12-04 17:43:06 +03:00
|
|
|
static void push_onecapture (MatchState *ms, int i) {
|
|
|
|
int l = ms->capture[i].len;
|
2001-11-28 23:13:13 +03:00
|
|
|
if (l == CAP_UNFINISHED) lua_error(ms->L, "unfinished capture");
|
2000-12-04 17:43:06 +03:00
|
|
|
if (l == CAP_POSITION)
|
|
|
|
lua_pushnumber(ms->L, ms->capture[i].init - ms->src_init + 1);
|
|
|
|
else
|
|
|
|
lua_pushlstring(ms->L, ms->capture[i].init, l);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-03-11 16:29:40 +03:00
|
|
|
static int push_captures (MatchState *ms, const char *s, const char *e) {
|
2000-08-28 21:57:04 +04:00
|
|
|
int i;
|
2001-11-28 23:13:13 +03:00
|
|
|
luaL_check_stack(ms->L, ms->level, "too many captures");
|
2002-03-11 16:29:40 +03:00
|
|
|
if (ms->level == 0 && s) { /* no explicit captures? */
|
|
|
|
lua_pushlstring(ms->L, s, e-s); /* return whole match */
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
else { /* return all captures */
|
|
|
|
for (i=0; i<ms->level; i++)
|
|
|
|
push_onecapture(ms, i);
|
|
|
|
return ms->level; /* number of strings pushed */
|
|
|
|
}
|
2000-08-28 21:57:04 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int str_find (lua_State *L) {
|
2000-05-24 17:54:49 +04:00
|
|
|
size_t l1, l2;
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *s = luaL_check_lstr(L, 1, &l1);
|
|
|
|
const char *p = luaL_check_lstr(L, 2, &l2);
|
2000-11-24 20:39:56 +03:00
|
|
|
sint32 init = posrelat(luaL_opt_long(L, 3, 1), l1) - 1;
|
2001-11-28 23:13:13 +03:00
|
|
|
luaL_arg_check(L, 0 <= init && (size_t)(init) <= l1, 3, "out of range");
|
2002-02-09 01:39:36 +03:00
|
|
|
if (lua_toboolean(L, 4) || /* explicit request? */
|
2000-08-28 21:57:04 +04:00
|
|
|
strpbrk(p, SPECIALS) == NULL) { /* or no special characters? */
|
2002-01-03 20:27:43 +03:00
|
|
|
/* do a plain search */
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *s2 = lmemfind(s+init, l1-init, p, l2);
|
1996-08-01 18:55:33 +04:00
|
|
|
if (s2) {
|
1999-11-22 16:12:07 +03:00
|
|
|
lua_pushnumber(L, s2-s+1);
|
|
|
|
lua_pushnumber(L, s2-s+l2);
|
2000-08-28 21:57:04 +04:00
|
|
|
return 2;
|
1996-08-01 18:55:33 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else {
|
2000-11-23 16:49:35 +03:00
|
|
|
MatchState ms;
|
2001-11-28 23:13:13 +03:00
|
|
|
int anchor = (*p == '^') ? (p++, 1) : 0;
|
|
|
|
const char *s1=s+init;
|
2000-11-23 16:49:35 +03:00
|
|
|
ms.L = L;
|
2000-12-04 17:43:06 +03:00
|
|
|
ms.src_init = s;
|
2000-11-23 16:49:35 +03:00
|
|
|
ms.src_end = s+l1;
|
1996-08-01 18:55:33 +04:00
|
|
|
do {
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *res;
|
2000-11-23 16:49:35 +03:00
|
|
|
ms.level = 0;
|
|
|
|
if ((res=match(&ms, s1, p)) != NULL) {
|
1999-11-22 16:12:07 +03:00
|
|
|
lua_pushnumber(L, s1-s+1); /* start */
|
|
|
|
lua_pushnumber(L, res-s); /* end */
|
2002-03-11 16:29:40 +03:00
|
|
|
return push_captures(&ms, NULL, 0) + 2;
|
1996-08-01 18:55:33 +04:00
|
|
|
}
|
2000-11-23 16:49:35 +03:00
|
|
|
} while (s1++<ms.src_end && !anchor);
|
1996-08-01 18:55:33 +04:00
|
|
|
}
|
1999-11-22 16:12:07 +03:00
|
|
|
lua_pushnil(L); /* not found */
|
2000-08-28 21:57:04 +04:00
|
|
|
return 1;
|
1996-08-01 18:55:33 +04:00
|
|
|
}
|
|
|
|
|
1997-09-16 23:25:59 +04:00
|
|
|
|
2002-03-11 16:29:40 +03:00
|
|
|
static int gfind_aux (lua_State *L) {
|
|
|
|
MatchState ms;
|
|
|
|
const char *s = lua_tostring(L, lua_upvalueindex(1));
|
|
|
|
size_t ls = lua_strlen(L, lua_upvalueindex(1));
|
|
|
|
const char *p = lua_tostring(L, lua_upvalueindex(2));
|
|
|
|
const char *src;
|
|
|
|
ms.L = L;
|
|
|
|
ms.src_init = s;
|
|
|
|
ms.src_end = s+ls;
|
|
|
|
for (src = s + (size_t)lua_tonumber(L, lua_upvalueindex(3));
|
|
|
|
src <= ms.src_end;
|
|
|
|
src++) {
|
|
|
|
const char *e;
|
|
|
|
ms.level = 0;
|
|
|
|
if ((e = match(&ms, src, p)) != NULL) {
|
|
|
|
int newstart = e-s;
|
|
|
|
if (e == src) newstart++; /* empty match? go at least one position */
|
|
|
|
lua_pushnumber(L, newstart);
|
|
|
|
lua_replace(L, lua_upvalueindex(3));
|
|
|
|
return push_captures(&ms, src, e);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0; /* not found */
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int gfind (lua_State *L) {
|
|
|
|
luaL_check_string(L, 1);
|
|
|
|
luaL_check_string(L, 2);
|
|
|
|
lua_settop(L, 2);
|
|
|
|
lua_pushnumber(L, 0);
|
|
|
|
lua_pushcclosure(L, gfind_aux, 3);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void add_s (MatchState *ms, luaL_Buffer *b,
|
|
|
|
const char *s, const char *e) {
|
2000-11-23 16:49:35 +03:00
|
|
|
lua_State *L = ms->L;
|
2000-08-28 21:57:04 +04:00
|
|
|
if (lua_isstring(L, 3)) {
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *news = lua_tostring(L, 3);
|
2000-08-28 21:57:04 +04:00
|
|
|
size_t l = lua_strlen(L, 3);
|
2000-05-24 17:54:49 +04:00
|
|
|
size_t i;
|
1998-03-24 23:14:25 +03:00
|
|
|
for (i=0; i<l; i++) {
|
|
|
|
if (news[i] != ESC)
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_putchar(b, news[i]);
|
1996-09-16 22:02:40 +04:00
|
|
|
else {
|
1998-03-24 23:14:25 +03:00
|
|
|
i++; /* skip ESC */
|
2001-02-22 20:15:18 +03:00
|
|
|
if (!isdigit(uchar(news[i])))
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_putchar(b, news[i]);
|
1998-03-24 23:14:25 +03:00
|
|
|
else {
|
2000-11-23 16:49:35 +03:00
|
|
|
int level = check_capture(ms, news[i]);
|
2000-12-04 17:43:06 +03:00
|
|
|
push_onecapture(ms, level);
|
|
|
|
luaL_addvalue(b); /* add capture to accumulated result */
|
1998-03-24 23:14:25 +03:00
|
|
|
}
|
1996-09-16 22:02:40 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
1998-03-24 23:14:25 +03:00
|
|
|
else { /* is a function */
|
2000-08-28 21:57:04 +04:00
|
|
|
int n;
|
2000-09-05 23:33:32 +04:00
|
|
|
lua_pushvalue(L, 3);
|
2002-03-11 16:29:40 +03:00
|
|
|
n = push_captures(ms, s, e);
|
2000-09-14 18:09:31 +04:00
|
|
|
lua_rawcall(L, n, 1);
|
2000-09-11 21:38:42 +04:00
|
|
|
if (lua_isstring(L, -1))
|
|
|
|
luaL_addvalue(b); /* add return to accumulated result */
|
|
|
|
else
|
|
|
|
lua_pop(L, 1); /* function result is not a string: pop it */
|
1996-09-16 22:02:40 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1997-09-16 23:25:59 +04:00
|
|
|
|
2000-08-28 21:57:04 +04:00
|
|
|
static int str_gsub (lua_State *L) {
|
2000-05-24 17:54:49 +04:00
|
|
|
size_t srcl;
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *src = luaL_check_lstr(L, 1, &srcl);
|
|
|
|
const char *p = luaL_check_string(L, 2);
|
1999-11-22 16:12:07 +03:00
|
|
|
int max_s = luaL_opt_int(L, 4, srcl+1);
|
2001-11-28 23:13:13 +03:00
|
|
|
int anchor = (*p == '^') ? (p++, 1) : 0;
|
1996-08-01 18:55:33 +04:00
|
|
|
int n = 0;
|
2000-11-23 16:49:35 +03:00
|
|
|
MatchState ms;
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_Buffer b;
|
2000-08-28 21:57:04 +04:00
|
|
|
luaL_arg_check(L,
|
|
|
|
lua_gettop(L) >= 3 && (lua_isstring(L, 3) || lua_isfunction(L, 3)),
|
2001-11-28 23:13:13 +03:00
|
|
|
3, "string or function expected");
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_buffinit(L, &b);
|
2000-11-23 16:49:35 +03:00
|
|
|
ms.L = L;
|
2000-12-04 17:43:06 +03:00
|
|
|
ms.src_init = src;
|
2000-11-23 16:49:35 +03:00
|
|
|
ms.src_end = src+srcl;
|
1997-02-21 18:21:34 +03:00
|
|
|
while (n < max_s) {
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *e;
|
2000-11-23 16:49:35 +03:00
|
|
|
ms.level = 0;
|
|
|
|
e = match(&ms, src, p);
|
1997-02-21 18:21:34 +03:00
|
|
|
if (e) {
|
1996-08-01 18:55:33 +04:00
|
|
|
n++;
|
2002-03-11 16:29:40 +03:00
|
|
|
add_s(&ms, &b, src, e);
|
1996-08-01 18:55:33 +04:00
|
|
|
}
|
1997-02-21 18:21:34 +03:00
|
|
|
if (e && e>src) /* non empty match? */
|
|
|
|
src = e; /* skip it */
|
2000-11-23 16:49:35 +03:00
|
|
|
else if (src < ms.src_end)
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_putchar(&b, *src++);
|
1997-02-21 18:21:34 +03:00
|
|
|
else break;
|
1996-08-01 18:55:33 +04:00
|
|
|
if (anchor) break;
|
|
|
|
}
|
2000-11-23 16:49:35 +03:00
|
|
|
luaL_addlstring(&b, src, ms.src_end-src);
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_pushresult(&b);
|
1999-11-22 16:12:07 +03:00
|
|
|
lua_pushnumber(L, n); /* number of substitutions */
|
2000-08-28 21:57:04 +04:00
|
|
|
return 2;
|
1995-10-09 15:49:21 +03:00
|
|
|
}
|
1993-07-28 17:18:00 +04:00
|
|
|
|
1999-01-04 15:53:24 +03:00
|
|
|
/* }====================================================== */
|
|
|
|
|
1996-08-01 18:55:33 +04:00
|
|
|
|
2000-11-23 16:49:35 +03:00
|
|
|
/* maximum size of each formatted item (> len(format('%99.99f', -1e308))) */
|
|
|
|
#define MAX_ITEM 512
|
|
|
|
/* maximum size of each format specification (such as '%-099.99d') */
|
|
|
|
#define MAX_FORMAT 20
|
|
|
|
|
|
|
|
|
2000-09-11 21:38:42 +04:00
|
|
|
static void luaI_addquoted (lua_State *L, luaL_Buffer *b, int arg) {
|
2000-05-24 17:54:49 +04:00
|
|
|
size_t l;
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *s = luaL_check_lstr(L, arg, &l);
|
|
|
|
luaL_putchar(b, '"');
|
1998-07-12 20:13:45 +04:00
|
|
|
while (l--) {
|
|
|
|
switch (*s) {
|
2001-11-28 23:13:13 +03:00
|
|
|
case '"': case '\\': case '\n':
|
|
|
|
luaL_putchar(b, '\\');
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_putchar(b, *s);
|
1998-07-12 20:13:45 +04:00
|
|
|
break;
|
2001-11-28 23:13:13 +03:00
|
|
|
case '\0': luaL_addlstring(b, "\\000", 4); break;
|
2000-09-11 21:38:42 +04:00
|
|
|
default: luaL_putchar(b, *s);
|
1998-07-12 20:13:45 +04:00
|
|
|
}
|
|
|
|
s++;
|
1996-03-14 18:52:35 +03:00
|
|
|
}
|
2001-11-28 23:13:13 +03:00
|
|
|
luaL_putchar(b, '"');
|
1996-03-14 18:52:35 +03:00
|
|
|
}
|
1996-01-22 20:38:57 +03:00
|
|
|
|
2000-11-23 16:49:35 +03:00
|
|
|
|
2001-11-28 23:13:13 +03:00
|
|
|
static const char *scanformat (lua_State *L, const char *strfrmt,
|
|
|
|
char *form, int *hasprecision) {
|
|
|
|
const char *p = strfrmt;
|
|
|
|
while (strchr("-+ #0", *p)) p++; /* skip flags */
|
2001-02-22 20:15:18 +03:00
|
|
|
if (isdigit(uchar(*p))) p++; /* skip width */
|
|
|
|
if (isdigit(uchar(*p))) p++; /* (2 digits at most) */
|
2001-11-28 23:13:13 +03:00
|
|
|
if (*p == '.') {
|
2000-11-23 16:49:35 +03:00
|
|
|
p++;
|
|
|
|
*hasprecision = 1;
|
2001-02-22 20:15:18 +03:00
|
|
|
if (isdigit(uchar(*p))) p++; /* skip precision */
|
|
|
|
if (isdigit(uchar(*p))) p++; /* (2 digits at most) */
|
2000-11-23 16:49:35 +03:00
|
|
|
}
|
2001-02-22 20:15:18 +03:00
|
|
|
if (isdigit(uchar(*p)))
|
2001-11-28 23:13:13 +03:00
|
|
|
lua_error(L, "invalid format (width or precision too long)");
|
2000-11-23 16:49:35 +03:00
|
|
|
if (p-strfrmt+2 > MAX_FORMAT) /* +2 to include `%' and the specifier */
|
2001-11-28 23:13:13 +03:00
|
|
|
lua_error(L, "invalid format (too long)");
|
|
|
|
form[0] = '%';
|
2000-11-23 16:49:35 +03:00
|
|
|
strncpy(form+1, strfrmt, p-strfrmt+1);
|
|
|
|
form[p-strfrmt+2] = 0;
|
|
|
|
return p;
|
|
|
|
}
|
|
|
|
|
1996-01-22 20:38:57 +03:00
|
|
|
|
2000-08-28 21:57:04 +04:00
|
|
|
static int str_format (lua_State *L) {
|
1996-01-22 20:38:57 +03:00
|
|
|
int arg = 1;
|
2001-07-17 22:46:49 +04:00
|
|
|
size_t sfl;
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *strfrmt = luaL_check_lstr(L, arg, &sfl);
|
|
|
|
const char *strfrmt_end = strfrmt+sfl;
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_Buffer b;
|
|
|
|
luaL_buffinit(L, &b);
|
2001-07-17 22:46:49 +04:00
|
|
|
while (strfrmt < strfrmt_end) {
|
2001-11-28 23:13:13 +03:00
|
|
|
if (*strfrmt != '%')
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_putchar(&b, *strfrmt++);
|
2001-11-28 23:13:13 +03:00
|
|
|
else if (*++strfrmt == '%')
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_putchar(&b, *strfrmt++); /* %% */
|
1996-08-01 18:55:33 +04:00
|
|
|
else { /* format item */
|
2001-11-28 23:13:13 +03:00
|
|
|
char form[MAX_FORMAT]; /* to store the format (`%...') */
|
|
|
|
char buff[MAX_ITEM]; /* to store the formatted item */
|
2000-11-23 16:49:35 +03:00
|
|
|
int hasprecision = 0;
|
2001-11-28 23:13:13 +03:00
|
|
|
if (isdigit(uchar(*strfrmt)) && *(strfrmt+1) == '$')
|
|
|
|
lua_error(L, "obsolete `format' option (d$)");
|
1997-07-05 02:35:38 +04:00
|
|
|
arg++;
|
2000-11-23 16:49:35 +03:00
|
|
|
strfrmt = scanformat(L, strfrmt, form, &hasprecision);
|
1996-08-01 18:55:33 +04:00
|
|
|
switch (*strfrmt++) {
|
2001-11-28 23:13:13 +03:00
|
|
|
case 'c': case 'd': case 'i':
|
1999-11-22 16:12:07 +03:00
|
|
|
sprintf(buff, form, luaL_check_int(L, arg));
|
1996-01-22 20:38:57 +03:00
|
|
|
break;
|
2001-11-28 23:13:13 +03:00
|
|
|
case 'o': case 'u': case 'x': case 'X':
|
2001-08-31 23:46:07 +04:00
|
|
|
sprintf(buff, form, (unsigned int)(luaL_check_number(L, arg)));
|
1998-05-19 02:21:55 +04:00
|
|
|
break;
|
2001-11-28 23:13:13 +03:00
|
|
|
case 'e': case 'E': case 'f':
|
|
|
|
case 'g': case 'G':
|
1999-11-22 16:12:07 +03:00
|
|
|
sprintf(buff, form, luaL_check_number(L, arg));
|
1996-01-22 20:38:57 +03:00
|
|
|
break;
|
2001-11-28 23:13:13 +03:00
|
|
|
case 'q':
|
2000-09-11 21:38:42 +04:00
|
|
|
luaI_addquoted(L, &b, arg);
|
2001-02-22 21:59:59 +03:00
|
|
|
continue; /* skip the `addsize' at the end */
|
2001-11-28 23:13:13 +03:00
|
|
|
case 's': {
|
2000-05-24 17:54:49 +04:00
|
|
|
size_t l;
|
2001-11-28 23:13:13 +03:00
|
|
|
const char *s = luaL_check_lstr(L, arg, &l);
|
2000-11-23 16:49:35 +03:00
|
|
|
if (!hasprecision && l >= 100) {
|
2000-03-03 17:58:26 +03:00
|
|
|
/* no precision and string is too long to be formatted;
|
1999-02-05 14:22:58 +03:00
|
|
|
keep original string */
|
2000-09-11 21:38:42 +04:00
|
|
|
lua_pushvalue(L, arg);
|
|
|
|
luaL_addvalue(&b);
|
2001-02-22 21:59:59 +03:00
|
|
|
continue; /* skip the `addsize' at the end */
|
1999-02-05 14:22:58 +03:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
sprintf(buff, form, s);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2000-11-23 16:49:35 +03:00
|
|
|
default: /* also treat cases `pnLlh' */
|
2001-11-28 23:13:13 +03:00
|
|
|
lua_error(L, "invalid option in `format'");
|
1996-01-22 20:38:57 +03:00
|
|
|
}
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_addlstring(&b, buff, strlen(buff));
|
1996-01-22 20:38:57 +03:00
|
|
|
}
|
1995-10-09 15:49:21 +03:00
|
|
|
}
|
2000-09-11 21:38:42 +04:00
|
|
|
luaL_pushresult(&b);
|
2000-08-28 21:57:04 +04:00
|
|
|
return 1;
|
1995-10-09 15:49:21 +03:00
|
|
|
}
|
1993-07-28 17:18:00 +04:00
|
|
|
|
1996-01-22 20:38:57 +03:00
|
|
|
|
2001-02-02 22:02:40 +03:00
|
|
|
static const luaL_reg strlib[] = {
|
2002-03-20 15:54:08 +03:00
|
|
|
{"len", str_len},
|
|
|
|
{"sub", str_sub},
|
|
|
|
{"lower", str_lower},
|
|
|
|
{"upper", str_upper},
|
|
|
|
{"char", str_char},
|
|
|
|
{"rep", str_rep},
|
|
|
|
{"byte", str_byte},
|
|
|
|
{"concat", str_concat},
|
|
|
|
{"format", str_format},
|
|
|
|
{"find", str_find},
|
|
|
|
{"gfind", gfind},
|
|
|
|
{"gsub", str_gsub},
|
|
|
|
{NULL, NULL}
|
1996-05-01 01:13:55 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
|
1993-07-28 17:18:00 +04:00
|
|
|
/*
|
|
|
|
** Open string library
|
|
|
|
*/
|
2001-03-06 23:09:38 +03:00
|
|
|
LUALIB_API int lua_strlibopen (lua_State *L) {
|
2002-04-03 00:43:08 +04:00
|
|
|
luaL_opennamedlib(L, "str", strlib, 0);
|
2001-03-06 23:09:38 +03:00
|
|
|
return 0;
|
1993-07-28 17:18:00 +04:00
|
|
|
}
|
2002-03-20 15:54:08 +03:00
|
|
|
|