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'$c' in 'lua_pushfstring' prints non-printable characters with 

their codes
This commit is contained in:
Roberto Ierusalimschy 2014-10-10 19:23:04 -03:00
parent 18014ef2fd
commit 56d4537879
2 changed files with 8 additions and 6 deletions
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7
llex.c
View File

@ -1,5 +1,5 @@
/*
** $Id: llex.c,v 2.80 2014/07/18 13:36:14 roberto Exp roberto $
** $Id: llex.c,v 2.81 2014/10/01 11:52:33 roberto Exp roberto $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@ -78,9 +78,8 @@ void luaX_init (lua_State *L) {
const char *luaX_token2str (LexState *ls, int token) {
if (token < FIRST_RESERVED) { /* single-byte symbols? */
lua_assert(token == cast(unsigned char, token));
return (lisprint(token)) ? luaO_pushfstring(ls->L, LUA_QL("%c"), token) :
luaO_pushfstring(ls->L, "char(%d)", token);
lua_assert(token == cast_uchar(token));
return luaO_pushfstring(ls->L, LUA_QL("%c"), token);
}
else {
const char *s = luaX_tokens[token - FIRST_RESERVED];

7
lobject.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lobject.c,v 2.90 2014/10/01 11:52:33 roberto Exp roberto $
** $Id: lobject.c,v 2.91 2014/10/04 22:57:10 roberto Exp roberto $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/
@ -377,7 +377,10 @@ const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) {
}
case 'c': {
char buff = cast(char, va_arg(argp, int));
pushstr(L, &buff, 1);
if (lisprint(cast_uchar(buff)))
pushstr(L, &buff, 1);
else /* non-printable character; print its code */
luaO_pushfstring(L, "<\\%d>", cast_uchar(buff));
break;
}
case 'd': {