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Update Lua to 5.3.6

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This commit is contained in:
dmiller
2022-08-31 18:39:45 +00:00
parent ea9344ef3d
commit 04bcefd3e4
12 changed files with 62 additions and 89 deletions
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31
liblua/llex.c
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@@ -244,12 +244,12 @@ static int read_numeral (LexState *ls, SemInfo *seminfo) {
/*
** 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)
** reads a sequence '[=*[' or ']=*]', leaving the last bracket.
** If sequence is well formed, return its number of '='s + 2; otherwise,
** return 1 if there is no '='s or 0 otherwise (an unfinished '[==...').
*/
static int skip_sep (LexState *ls) {
int count = 0;
static size_t skip_sep (LexState *ls) {
size_t count = 0;
int s = ls->current;
lua_assert(s == '[' || s == ']');
save_and_next(ls);
@@ -257,11 +257,14 @@ static int skip_sep (LexState *ls) {
save_and_next(ls);
count++;
}
return (ls->current == s) ? count : (-count) - 1;
return (ls->current == s) ? count + 2
: (count == 0) ? 1
: 0;
}
static void read_long_string (LexState *ls, SemInfo *seminfo, int sep) {
static void read_long_string (LexState *ls, SemInfo *seminfo, size_t sep) {
int line = ls->linenumber; /* initial line (for error message) */
save_and_next(ls); /* skip 2nd '[' */
if (currIsNewline(ls)) /* string starts with a newline? */
@@ -295,8 +298,8 @@ static void read_long_string (LexState *ls, SemInfo *seminfo, int sep) {
}
} endloop:
if (seminfo)
seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + (2 + sep),
luaZ_bufflen(ls->buff) - 2*(2 + sep));
seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + sep,
luaZ_bufflen(ls->buff) - 2 * sep);
}
@@ -444,9 +447,9 @@ static int llex (LexState *ls, SemInfo *seminfo) {
/* else is a comment */
next(ls);
if (ls->current == '[') { /* long comment? */
int sep = skip_sep(ls);
size_t sep = skip_sep(ls);
luaZ_resetbuffer(ls->buff); /* 'skip_sep' may dirty the buffer */
if (sep >= 0) {
if (sep >= 2) {
read_long_string(ls, NULL, sep); /* skip long comment */
luaZ_resetbuffer(ls->buff); /* previous call may dirty the buff. */
break;
@@ -458,12 +461,12 @@ static int llex (LexState *ls, SemInfo *seminfo) {
break;
}
case '[': { /* long string or simply '[' */
int sep = skip_sep(ls);
if (sep >= 0) {
size_t sep = skip_sep(ls);
if (sep >= 2) {
read_long_string(ls, seminfo, sep);
return TK_STRING;
}
else if (sep != -1) /* '[=...' missing second bracket */
else if (sep == 0) /* '[=...' missing second bracket */
lexerror(ls, "invalid long string delimiter", TK_STRING);
return '[';
}