Function setConstraint

plugins/workflow.cpp:1477–1501

}

static int setConstraint(lua_State *L)
{
    auto token = luaL_checkstring(L, 1);
    bool by_count = lua_toboolean(L, 2);
    int count = luaL_optint(L, 3, -1);
    int gap = luaL_optint(L, 4, -1);

    color_ostream &out = *Lua::GetOutput(L);
    update_data_structures(out);

    ItemConstraint *icv = get_constraint(out, token);
    if (!icv)
        luaL_error(L, "invalid constraint: %s", token);

    if (!lua_isnil(L, 2))
        icv->setGoalByCount(by_count);
    if (!lua_isnil(L, 3))
        icv->setGoalCount(count);
    if (!lua_isnil(L, 4))
        icv->setGoalGap(gap);

    process_constraints(out);
    push_constraint(L, icv);
    return 1;
}

static int getCountHistory(lua_State *L)
{