X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/a5d5099417229a48aa18477073266e9aa3b77a8e..d1a1114f7f257f89887ea5825ba0d896dfaa747b:/src/reader.c?ds=sidebyside diff --git a/src/reader.c b/src/reader.c index 86f3adf4..d7527158 100644 --- a/src/reader.c +++ b/src/reader.c @@ -132,8 +132,8 @@ get_merge_function (const char* name, const char* type, if (syms->next == NULL) { syms->next = XMALLOC (merger_list, 1); - syms->next->name = strdup (name); - syms->next->type = strdup (type); + syms->next->name = xstrdup (name); + syms->next->type = xstrdup (type); syms->next->next = NULL; merge_functions = head.next; } @@ -406,11 +406,11 @@ static void packgram (void) { unsigned int itemno = 0; - rule_number_t ruleno = 1; + rule_number_t ruleno = 0; symbol_list_t *p = grammar; ritem = XCALLOC (item_number_t, nritems); - rules = XCALLOC (rule_t, nrules) - 1; + rules = XCALLOC (rule_t, nrules); while (p) { @@ -447,7 +447,7 @@ packgram (void) rules[ruleno].precsym = ruleprec; rules[ruleno].prec = ruleprec; } - ritem[itemno++] = -ruleno; + ritem[itemno++] = rule_number_as_item_number (ruleno); ++ruleno; if (p) @@ -456,7 +456,7 @@ packgram (void) assert (itemno == nritems); - if (trace_flag) + if (trace_flag & trace_sets) ritem_print (stderr); } @@ -475,10 +475,10 @@ reader (void) /* Initialize the symbol table. */ symbols_new (); - /* Construct the axiom symbol. */ - axiom = symbol_get ("$axiom", empty_location); - axiom->class = nterm_sym; - axiom->number = nvars++; + /* Construct the accept symbol. */ + accept = symbol_get ("$accept", empty_location); + accept->class = nterm_sym; + accept->number = nvars++; /* Construct the error token */ errtoken = symbol_get ("error", empty_location); @@ -487,7 +487,7 @@ reader (void) /* Construct a token that represents all undefined literal tokens. It is always token number 2. */ - undeftoken = symbol_get ("$undefined.", empty_location); + undeftoken = symbol_get ("$undefined", empty_location); undeftoken->class = token_sym; undeftoken->number = ntokens++; @@ -515,25 +515,25 @@ reader (void) /* Report any undefined symbols and consider them nonterminals. */ symbols_check_defined (); - /* If the user did not define her EOFTOKEN, do it now. */ - if (!eoftoken) + /* If the user did not define her ENDTOKEN, do it now. */ + if (!endtoken) { - eoftoken = symbol_get ("$", empty_location); - eoftoken->class = token_sym; - eoftoken->number = 0; + endtoken = symbol_get ("$end", empty_location); + endtoken->class = token_sym; + endtoken->number = 0; /* Value specified by POSIX. */ - eoftoken->user_token_number = 0; + endtoken->user_token_number = 0; } /* Insert the initial rule, which line is that of the first rule (not that of the start symbol): - axiom: %start EOF. */ + accept: %start EOF. */ { - symbol_list_t *p = symbol_list_new (axiom, empty_location); + symbol_list_t *p = symbol_list_new (accept, empty_location); p->location = grammar->location; p->next = symbol_list_new (startsymbol, empty_location); - p->next->next = symbol_list_new (eoftoken, empty_location); + p->next->next = symbol_list_new (endtoken, empty_location); p->next->next->next = symbol_list_new (NULL, empty_location); p->next->next->next->next = grammar; nrules += 1;