Function trydecpoint

app/redis-6.2.6/deps/lua/src/llex.c:180–191

static void trydecpoint (LexState *ls, SemInfo *seminfo) {
  /* format error: try to update decimal point separator */
  struct lconv *cv = localeconv();
  char old = ls->decpoint;
  ls->decpoint = (cv ? cv->decimal_point[0] : '.');
  buffreplace(ls, old, ls->decpoint);  /* try updated decimal separator */
  if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) {
    /* format error with correct decimal point: no more options */
    buffreplace(ls, ls->decpoint, '.');  /* undo change (for error message) */
    luaX_lexerror(ls, "malformed number", TK_NUMBER);
  }
}


/* LUA_NUMBER */