+ case INVALID_REFBLOCK_USE : ret = tr("a reference block is used during pattern computations"); break;
+ case INVALID_DELTA_CP : ret = tr("delta and CP are not consistent"); break;
+ case EVAL_PARAM_UNKNOWN : ret = tr("a variable used in an expression is not defined as a block parameter"); break;
+ case EVAL_PARAM_NOVALUE : ret = tr("can't get the double value of a block parameter"); break;
+ case EVAL_INVALID_EXPR : ret = tr("invalid arithmetic expression (in a block parameter/pattern)"); break;
+ case INVALID_IFACE_PATTERN : ret = tr("the pattern of an interface is invalid (not correct grammar)"); break;
+ case INVALID_IFACE_PC : ret = tr("the production counter of an interface is invalid (not correct grammar)"); break;
+ case INVALID_IFACE_CP_LENGTH : ret = tr("the size of CP for an interface differs from others"); break;
+ case NO_IFACE_CP : ret = tr("an interface has no CP defined in reference block"); break;
+ case INVALID_IFACE_PP_LENGTH : ret = tr("the size of PP for an interface differs from others"); break;
+ case NO_IFACE_PP : ret = tr("an interface has no PP defined in reference block"); break;
+ case NO_IFACE_IP : ret = tr("an interface has no IP"); break;
+ case IP_AP_NOTCOMPAT : ret = tr("IP and AP not compatible"); break;
+ case IP_END_NULLCOL : ret = tr("IP ends with anull column (normally not possible during compat. check)"); break;
+ case AP_TOO_SHORT : ret = tr("AP has been badly computed, leading to a AP shorter than needed (NB: it is an abnormal case)"); break;
+ case IFACE_NOT_CONNECTED : ret = tr("an interface with control is not coonected, leading to an impossible graph analysis"); break;