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authorAlexander Lantsev <aunsane@gmail.com>2016-06-13 14:18:51 +0000
committerAlexander Lantsev <aunsane@gmail.com>2016-06-13 14:18:51 +0000
commit8cf571c5ea48be2d281d2c83ed0f2dba6f2c32f4 (patch)
tree0345c47dc55eee01884f535fb26e0a2d44732213 /libs/liblua/src/llex.c
parent4386b8b61c08045c5d416b546517e1c71c7dcae6 (diff)
lublua:
- updated to 5.3.3 - renamed to lua53.dll git-svn-id: http://svn.miranda-ng.org/main/trunk@16965 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'libs/liblua/src/llex.c')
-rw-r--r--libs/liblua/src/llex.c63
1 files changed, 13 insertions, 50 deletions
diff --git a/libs/liblua/src/llex.c b/libs/liblua/src/llex.c
index 6e4a457ad6..70328273f7 100644
--- a/libs/liblua/src/llex.c
+++ b/libs/liblua/src/llex.c
@@ -1,5 +1,5 @@
/*
-** $Id: llex.c,v 2.89 2014/11/14 16:06:09 roberto Exp $
+** $Id: llex.c,v 2.96 2016/05/02 14:02:12 roberto Exp $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@@ -16,6 +16,7 @@
#include "lua.h"
#include "lctype.h"
+#include "ldebug.h"
#include "ldo.h"
#include "lgc.h"
#include "llex.h"
@@ -68,7 +69,7 @@ static void save (LexState *ls, int c) {
void luaX_init (lua_State *L) {
int i;
- TString *e = luaS_new(L, LUA_ENV); /* create env name */
+ TString *e = luaS_newliteral(L, LUA_ENV); /* create env name */
luaC_fix(L, obj2gco(e)); /* never collect this name */
for (i=0; i<NUM_RESERVED; i++) {
TString *ts = luaS_new(L, luaX_tokens[i]);
@@ -106,9 +107,7 @@ static const char *txtToken (LexState *ls, int token) {
static l_noret lexerror (LexState *ls, const char *msg, int token) {
- char buff[LUA_IDSIZE];
- luaO_chunkid(buff, getstr(ls->source), LUA_IDSIZE);
- msg = luaO_pushfstring(ls->L, "%s:%d: %s", buff, ls->linenumber, msg);
+ msg = luaG_addinfo(ls->L, msg, ls->source, ls->linenumber);
if (token)
luaO_pushfstring(ls->L, "%s near %s", msg, txtToken(ls, token));
luaD_throw(ls->L, LUA_ERRSYNTAX);
@@ -163,7 +162,6 @@ static void inclinenumber (LexState *ls) {
void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source,
int firstchar) {
ls->t.token = 0;
- ls->decpoint = '.';
ls->L = L;
ls->current = firstchar;
ls->lookahead.token = TK_EOS; /* no look-ahead token */
@@ -172,7 +170,7 @@ void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source,
ls->linenumber = 1;
ls->lastline = 1;
ls->source = source;
- ls->envn = luaS_new(L, LUA_ENV); /* get env name */
+ ls->envn = luaS_newliteral(L, LUA_ENV); /* get env name */
luaZ_resizebuffer(ls->L, ls->buff, LUA_MINBUFFER); /* initialize buffer */
}
@@ -208,42 +206,6 @@ static int check_next2 (LexState *ls, const char *set) {
}
-/*
-** change all characters 'from' in buffer to 'to'
-*/
-static void buffreplace (LexState *ls, char from, char to) {
- if (from != to) {
- size_t n = luaZ_bufflen(ls->buff);
- char *p = luaZ_buffer(ls->buff);
- while (n--)
- if (p[n] == from) p[n] = to;
- }
-}
-
-
-#if !defined(l_getlocaledecpoint)
-#define l_getlocaledecpoint() (localeconv()->decimal_point[0])
-#endif
-
-
-#define buff2num(b,o) (luaO_str2num(luaZ_buffer(b), o) != 0)
-
-/*
-** in case of format error, try to change decimal point separator to
-** the one defined in the current locale and check again
-*/
-static void trydecpoint (LexState *ls, TValue *o) {
- char old = ls->decpoint;
- ls->decpoint = l_getlocaledecpoint();
- buffreplace(ls, old, ls->decpoint); /* try new decimal separator */
- if (!buff2num(ls->buff, o)) {
- /* format error with correct decimal point: no more options */
- buffreplace(ls, ls->decpoint, '.'); /* undo change (for error message) */
- lexerror(ls, "malformed number", TK_FLT);
- }
-}
-
-
/* LUA_NUMBER */
/*
** this function is quite liberal in what it accepts, as 'luaO_str2num'
@@ -267,9 +229,8 @@ static int read_numeral (LexState *ls, SemInfo *seminfo) {
else break;
}
save(ls, '\0');
- buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */
- if (!buff2num(ls->buff, &obj)) /* format error? */
- trydecpoint(ls, &obj); /* try to update decimal point separator */
+ if (luaO_str2num(luaZ_buffer(ls->buff), &obj) == 0) /* format error? */
+ lexerror(ls, "malformed number", TK_FLT);
if (ttisinteger(&obj)) {
seminfo->i = ivalue(&obj);
return TK_INT;
@@ -283,8 +244,9 @@ static int read_numeral (LexState *ls, SemInfo *seminfo) {
/*
-** skip a sequence '[=*[' or ']=*]' and return its number of '='s or
-** -1 if sequence is malformed
+** skip a sequence '[=*[' or ']=*]'; if sequence is well formed, return
+** its number of '='s; otherwise, return a negative number (-1 iff there
+** are no '='s after initial bracket)
*/
static int skip_sep (LexState *ls) {
int count = 0;
@@ -501,8 +463,9 @@ static int llex (LexState *ls, SemInfo *seminfo) {
read_long_string(ls, seminfo, sep);
return TK_STRING;
}
- else if (sep == -1) return '[';
- else lexerror(ls, "invalid long string delimiter", TK_STRING);
+ else if (sep != -1) /* '[=...' missing second bracket */
+ lexerror(ls, "invalid long string delimiter", TK_STRING);
+ return '[';
}
case '=': {
next(ls);