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The 640 MEG Shareware Studio 2
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The 640 Meg Shareware Studio CD-ROM Volume II (Data Express)(1993).ISO
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pccts.zip
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DLG_P.C
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C/C++ Source or Header
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1992-12-08
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15KB
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690 lines
/*
* A n t l r T r a n s l a t i o n H e a d e r
*
* Terence Parr, Hank Dietz and Will Cohen: 1989-1992
* Purdue University Electrical Engineering
* ANTLR Version 1.06
*/
#include <stdio.h>
#include <ctype.h>
#include "dlg.h"
#ifdef MEMCHK
#include "trax.h"
#else
extern char *malloc();
extern char *calloc();
#endif
#include "antlr.h"
#include "tokens.h"
#include "dlgdef.h"
#include "mode.h"
ANTLR_INFO
int action_no = 0; /* keep track of actions outputed */
int nfa_allocated = 0; /* keeps track of number of nfa nodes */
nfa_node *nfa_array = NULL;/* root of binary tree that stores nfa array */
nfa_node nfa_model_node; /* model to initialize new nodes */
set used_chars; /* used to label trans. arcs */
set used_classes; /* classes or chars used to label trans. arcs */
set normal_chars; /* mask to get rid elements that aren't used
in set */
int flag_paren = FALSE;
int flag_brace = FALSE;
int mode_counter = 0; /* keep track of number of %%names */
#ifdef __STDC__
void
grammar()
#else
grammar()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
p_head(); func_action = FALSE;
{
zzBLOCK(zztasp2);
zzMake0;
{
while ( (LA(1)==ACTION) ) {
zzmatch(ACTION); zzCONSUME;
zzLOOP(zztasp2);
}
zzEXIT(zztasp2);
}
}
start_states();
func_action = FALSE; p_tables(); p_tail();
{
zzBLOCK(zztasp2);
zzMake0;
{
while ( (LA(1)==ACTION) ) {
zzmatch(ACTION); zzCONSUME;
zzLOOP(zztasp2);
}
zzEXIT(zztasp2);
}
}
zzmatch(1); zzCONSUME;
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x1);
}
}
#ifdef __STDC__
void
start_states()
#else
start_states()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
{
zzBLOCK(zztasp2);
zzMake0;
{
if ( (LA(1)==PER_PER) ) {
zzmatch(PER_PER); zzCONSUME;
do_conversion();
}
else if ( (LA(1)==NAME_PER_PER) ) {
zzmatch(NAME_PER_PER); zzCONSUME;
do_conversion();
{
zzBLOCK(zztasp3);
zzMake0;
{
while ( (LA(1)==NAME_PER_PER) ) {
zzmatch(NAME_PER_PER); zzCONSUME;
do_conversion();
zzLOOP(zztasp3);
}
zzEXIT(zztasp3);
}
}
}
else {zzFAIL(1,zzerr1,&zzMissSet,&zzMissText,&zzBadTok,&zzBadText,&zzErrk); goto fail;}
zzEXIT(zztasp2);
}
}
zzmatch(PER_PER); zzCONSUME;
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x2);
}
}
#ifdef __STDC__
void
do_conversion()
#else
do_conversion()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
new_automaton_mode(); func_action = TRUE;
rule_list();
dfa_class_nop[mode_counter] =
relabel(zzaArg(zztasp1,1 ).l,comp_level);
if (comp_level)
p_shift_table(mode_counter);
dfa_basep[mode_counter] = dfa_allocated+1;
make_dfa_model_node(dfa_class_nop[mode_counter]);
nfa_to_dfa(zzaArg(zztasp1,1 ).l);
++mode_counter;
func_action = FALSE;
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x4);
}
}
#ifdef __STDC__
void
rule_list()
#else
rule_list()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
if ( (setwd1[LA(1)]&0x8) ) {
rule();
zzaRet.l=zzaArg(zztasp1,1 ).l; zzaRet.r=zzaArg(zztasp1,1 ).r;
{
zzBLOCK(zztasp2);
zzMake0;
{
while ( (setwd1[LA(1)]&0x10) ) {
rule();
{nfa_node *t1;
t1 = new_nfa_node();
(t1)->trans[0]=zzaRet.l;
(t1)->trans[1]=zzaArg(zztasp2,1 ).l;
/* all accept nodes "dead ends" */
zzaRet.l=t1; zzaRet.r=NULL;
}
zzLOOP(zztasp2);
}
zzEXIT(zztasp2);
}
}
}
else if ( (setwd1[LA(1)]&0x20) ) {
zzaRet.l = new_nfa_node(); zzaRet.r = NULL;
warning("no regular expressions", zzline);
}
else {zzFAIL(1,zzerr2,&zzMissSet,&zzMissText,&zzBadTok,&zzBadText,&zzErrk); goto fail;}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x40);
}
}
#ifdef __STDC__
void
rule()
#else
rule()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
if ( (setwd1[LA(1)]&0x80) ) {
reg_expr();
zzmatch(ACTION);
zzaRet.l=zzaArg(zztasp1,1 ).l; zzaRet.r=zzaArg(zztasp1,1 ).r; (zzaArg(zztasp1,1 ).r)->accept=action_no;
zzCONSUME;
}
else if ( (LA(1)==ACTION) ) {
zzmatch(ACTION);
zzaRet.l = NULL; zzaRet.r = NULL;
error("no expression for action ", zzline);
zzCONSUME;
}
else {zzFAIL(1,zzerr3,&zzMissSet,&zzMissText,&zzBadTok,&zzBadText,&zzErrk); goto fail;}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x100);
}
}
#ifdef __STDC__
void
reg_expr()
#else
reg_expr()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
and_expr();
zzaRet.l=zzaArg(zztasp1,1 ).l; zzaRet.r=zzaArg(zztasp1,1 ).r;
{
zzBLOCK(zztasp2);
zzMake0;
{
while ( (LA(1)==OR) ) {
zzmatch(OR); zzCONSUME;
and_expr();
{nfa_node *t1, *t2;
t1 = new_nfa_node(); t2 = new_nfa_node();
(t1)->trans[0]=zzaRet.l;
(t1)->trans[1]=zzaArg(zztasp2,2 ).l;
(zzaRet.r)->trans[1]=t2;
(zzaArg(zztasp2,2 ).r)->trans[1]=t2;
zzaRet.l=t1; zzaRet.r=t2;
}
zzLOOP(zztasp2);
}
zzEXIT(zztasp2);
}
}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x200);
}
}
#ifdef __STDC__
void
and_expr()
#else
and_expr()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
repeat_expr();
zzaRet.l=zzaArg(zztasp1,1 ).l; zzaRet.r=zzaArg(zztasp1,1 ).r;
{
zzBLOCK(zztasp2);
zzMake0;
{
while ( (setwd1[LA(1)]&0x400) ) {
repeat_expr();
(zzaRet.r)->trans[1]=zzaArg(zztasp2,1 ).l; zzaRet.r=zzaArg(zztasp2,1 ).r;
zzLOOP(zztasp2);
}
zzEXIT(zztasp2);
}
}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x800);
}
}
#ifdef __STDC__
void
repeat_expr()
#else
repeat_expr()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
if ( (setwd1[LA(1)]&0x1000) ) {
expr();
zzaRet.l=zzaArg(zztasp1,1 ).l; zzaRet.r=zzaArg(zztasp1,1 ).r;
{
zzBLOCK(zztasp2);
zzMake0;
{
if ( (LA(1)==ZERO_MORE) ) {
zzmatch(ZERO_MORE);
{ nfa_node *t1,*t2;
(zzaRet.r)->trans[0] = zzaRet.l;
t1 = new_nfa_node(); t2 = new_nfa_node();
t1->trans[0]=zzaRet.l;
t1->trans[1]=t2;
(zzaRet.r)->trans[1]=t2;
zzaRet.l=t1;zzaRet.r=t2;
}
zzCONSUME;
}
else if ( (LA(1)==ONE_MORE) ) {
zzmatch(ONE_MORE);
(zzaRet.r)->trans[0] = zzaRet.l;
zzCONSUME;
}
zzEXIT(zztasp2);
}
}
}
else if ( (LA(1)==ZERO_MORE) ) {
zzmatch(ZERO_MORE);
error("no expression for *", zzline);
zzCONSUME;
}
else if ( (LA(1)==ONE_MORE) ) {
zzmatch(ONE_MORE);
error("no expression for +", zzline);
zzCONSUME;
}
else {zzFAIL(1,zzerr4,&zzMissSet,&zzMissText,&zzBadTok,&zzBadText,&zzErrk); goto fail;}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x2000);
}
}
#ifdef __STDC__
void
expr()
#else
expr()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
if ( (LA(1)==L_BRACK) ) {
zzmatch(L_BRACK); zzCONSUME;
atom_list();
zzmatch(R_BRACK);
zzaRet.l = new_nfa_node(); zzaRet.r = new_nfa_node();
(zzaRet.l)->trans[0] = zzaRet.r;
(zzaRet.l)->label = set_dup(zzaArg(zztasp1,2 ).label);
set_orin(&used_chars,(zzaRet.l)->label);
zzCONSUME;
}
else if ( (LA(1)==NOT) ) {
zzmatch(NOT); zzCONSUME;
zzmatch(L_BRACK); zzCONSUME;
atom_list();
zzmatch(R_BRACK);
zzaRet.l = new_nfa_node(); zzaRet.r = new_nfa_node();
(zzaRet.l)->trans[0] = zzaRet.r;
(zzaRet.l)->label = set_dif(normal_chars,zzaArg(zztasp1,3 ).label);
set_orin(&used_chars,(zzaRet.l)->label);
zzCONSUME;
}
else if ( (LA(1)==L_PAR) ) {
zzmatch(L_PAR); zzCONSUME;
reg_expr();
zzmatch(R_PAR);
zzaRet.l = new_nfa_node(); zzaRet.r = new_nfa_node();
(zzaRet.l)->trans[0] = zzaArg(zztasp1,2 ).l;
(zzaArg(zztasp1,2 ).r)->trans[1] = zzaRet.r;
zzCONSUME;
}
else if ( (LA(1)==L_BRACE) ) {
zzmatch(L_BRACE); zzCONSUME;
reg_expr();
zzmatch(R_BRACE);
zzaRet.l = new_nfa_node(); zzaRet.r = new_nfa_node();
(zzaRet.l)->trans[0] = zzaArg(zztasp1,2 ).l;
(zzaRet.l)->trans[1] = zzaRet.r;
(zzaArg(zztasp1,2 ).r)->trans[1] = zzaRet.r;
zzCONSUME;
}
else if ( (setwd1[LA(1)]&0x4000) ) {
atom();
zzaRet.l = new_nfa_node(); zzaRet.r = new_nfa_node();
(zzaRet.l)->trans[0] = zzaRet.r;
(zzaRet.l)->label = set_dup(zzaArg(zztasp1,1 ).label);
set_orin(&used_chars,(zzaRet.l)->label);
}
else {zzFAIL(1,zzerr5,&zzMissSet,&zzMissText,&zzBadTok,&zzBadText,&zzErrk); goto fail;}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd1, 0x8000);
}
}
#ifdef __STDC__
void
atom_list()
#else
atom_list()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
set_free(zzaRet.label);
{
zzBLOCK(zztasp2);
zzMake0;
{
while ( (setwd2[LA(1)]&0x1) ) {
near_atom();
set_orin(&(zzaRet.label),zzaArg(zztasp2,1 ).label);
zzLOOP(zztasp2);
}
zzEXIT(zztasp2);
}
}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd2, 0x2);
}
}
#ifdef __STDC__
void
near_atom()
#else
near_atom()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
register int i;
register int i_prime;
anychar();
zzaRet.letter=zzaArg(zztasp1,1 ).letter; zzaRet.label=set_of(zzaArg(zztasp1,1 ).letter);
i_prime = zzaArg(zztasp1,1 ).letter + MIN_CHAR;
if (case_insensitive && islower(i_prime))
set_orel(toupper(i_prime)-MIN_CHAR,
&(zzaRet.label));
if (case_insensitive && isupper(i_prime))
set_orel(tolower(i_prime)-MIN_CHAR,
&(zzaRet.label));
{
zzBLOCK(zztasp2);
zzMake0;
{
if ( (LA(1)==RANGE) ) {
zzmatch(RANGE); zzCONSUME;
anychar();
for (i=zzaRet.letter; i<= zzaArg(zztasp2,2 ).letter; ++i){
set_orel(i,&(zzaRet.label));
i_prime = i+MIN_CHAR;
if (case_insensitive && islower(i_prime))
set_orel(toupper(i_prime)-MIN_CHAR,
&(zzaRet.label));
if (case_insensitive && isupper(i_prime))
set_orel(tolower(i_prime)-MIN_CHAR,
&(zzaRet.label));
}
}
zzEXIT(zztasp2);
}
}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd2, 0x4);
}
}
#ifdef __STDC__
void
atom()
#else
atom()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
register int i_prime;
anychar();
zzaRet.label = set_of(zzaArg(zztasp1,1 ).letter);
i_prime = zzaArg(zztasp1,1 ).letter + MIN_CHAR;
if (case_insensitive && islower(i_prime))
set_orel(toupper(i_prime)-MIN_CHAR,
&(zzaRet.label));
if (case_insensitive && isupper(i_prime))
set_orel(tolower(i_prime)-MIN_CHAR,
&(zzaRet.label));
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd2, 0x8);
}
}
#ifdef __STDC__
void
anychar()
#else
anychar()
#endif
{
zzRULE;
zzBLOCK(zztasp1);
zzMake0;
{
if ( (LA(1)==REGCHAR) ) {
zzmatch(REGCHAR);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==OCTAL_VALUE) ) {
zzmatch(OCTAL_VALUE);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==HEX_VALUE) ) {
zzmatch(HEX_VALUE);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==DEC_VALUE) ) {
zzmatch(DEC_VALUE);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==TAB) ) {
zzmatch(TAB);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==NL) ) {
zzmatch(NL);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==CR) ) {
zzmatch(CR);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==BS) ) {
zzmatch(BS);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==LIT) ) {
zzmatch(LIT);
zzaRet.letter = zzaArg(zztasp1,1 ).letter - MIN_CHAR;
zzCONSUME;
}
else if ( (LA(1)==L_EOF) ) {
zzmatch(L_EOF);
zzaRet.letter = 0;
zzCONSUME;
}
else {zzFAIL(1,zzerr6,&zzMissSet,&zzMissText,&zzBadTok,&zzBadText,&zzErrk); goto fail;}
zzEXIT(zztasp1);
return;
fail:
zzEXIT(zztasp1);
/* empty action */
zzsyn(zzMissText, zzBadTok, "", zzMissSet, zzMissTok, zzErrk, zzBadText);
zzresynch(setwd2, 0x10);
}
}
/* finds nfa state i in the binary tree nfa_array */
nfa_node *index_nfa(i)
register int i;
{
register nfa_node *p = nfa_array;
if (i){
while((i>1) && p){
if(i & 1)
p = p->right;
else
p = p->left;
i = i>>1;
}
return p;
}else{
return NIL_INDEX;
}
}
/* adds a new nfa to the binary tree and returns a pointer to it */
nfa_node *new_nfa_node()
{
register nfa_node *p = nfa_array;
nfa_node *t;
register int i;
i = ++nfa_allocated;
t = (nfa_node*) malloc(sizeof(nfa_node));
*t = nfa_model_node;
t->node_no = i;
while((i>3) && p){
if(i & 1)
p = p->right;
else
p = p->left;
i = i>>1;
}
if (nfa_allocated == 1)
nfa_array = t;
else if (p != NIL_INDEX){
if (i & 1)
p->right = t;
else
p->left = t;
}
else{
internal_error("%s(%d): missing node on binary tree\n",
__FILE__,__LINE__);
}
return t;
}
/* initialize the model node used to fill in newly made nfa_nodes */
make_nfa_model_node()
{
nfa_model_node.left = NULL;
nfa_model_node.right = NULL;
nfa_model_node.node_no = -1; /* impossible value for real nfa node */
nfa_model_node.nfa_set = 0;
nfa_model_node.accept = 0; /* error state default*/
nfa_model_node.trans[0] = NULL;
nfa_model_node.trans[1] = NULL;
nfa_model_node.label = empty;
}