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/F0 13/Times-Roman@0 SF(The History of PCCTS)228.232 84 Q/F1 11/Times-Roman@0
SF(The Purdue Compiler)190.468 108 Q(-Construction T)-.22 E(ool Set)-.88 E/F2
10/Times-Italic@0 SF -.92(Te)262.245 144 S -.37(re).92 G(nce P).37 E(arr)-.8 E
/F3 10/Times-Roman@0 SF -.15(Pa)234.755 156 S(rr Research Corporation).15 E
(Minneapolis, Minnesota)239.39 168 Q(and)280.78 180 Q(Uni)239.315 192 Q -.15
(ve)-.25 G(rsity of Minnesota).15 E
(Army High Performance Computing Research Center)180.38 204 Q F2
([Updated 8-7-94])252.31 228 Q F1 .084(The PCCTS project be)97 259.6 R -.055
(ga)-.165 G 2.834(na).055 G 2.833(sap)220.547 259.6 S(arser)240.876 259.6 Q
.083(-generator project for a graduate course at Purdue Uni-)-.22 F -.165(ve)72
275.6 S 1.085(rsity in the F).165 F 1.086
(all of 1988 taught by Hank Dietz\212 translator)-.165 F 1.086
(-writing systems.)-.22 F 1.086(Under the guid-)6.586 F .627
(ance of Professor Dietz, the parser generator)72 291.6 R 3.377(,A)-.44 G .626
(NTLR \(originally called YUCC\), continued after)285.18 291.6 R .253
(the termination of the course and e)72 307.6 R -.165(ve)-.275 G .254
(ntually became the subject of T).165 F .254(erence P)-.77 F(arr')-.165 E 3.004
(sM)-.605 G(aster')445.083 307.6 Q 3.004(st)-.605 G(hesis.)479.25 307.6 Q
(Originally)72 323.6 Q 4.092(,l)-.715 G -.165(ex)126.406 323.6 S 1.342
(ical analysis w).165 F 1.342(as performed via ALX which w)-.11 F 1.342
(as soon replaced by W)-.11 F 1.341(ill Cohen')-.44 F(s)-.605 E .594
(DLG in the F)72 339.6 R .594(all of 1989 \(DF)-.165 F .595(A-based le)-.814 F
.595(xical-analyzer generator)-.165 F 3.345(,a)-.44 G .595(lso an of)367.188
339.6 R .595(fshoot of the graduate)-.275 F(translation course\).)72 355.6 Q
.877(The alpha v)97 375.2 R .877(ersion of ANTLR w)-.165 F .877(as totally re)
-.11 F .876(written resulting in 1.00B.)-.275 F -1.221(Ve)6.376 G .876
(rsion 1.00B w)1.221 F(as)-.11 E 1.577(released via an internet ne)72 391.2 R
1.577(wsgroup \(comp.compilers\) posting in February of 1990 and quickly)-.275
F -.055(ga)72 407.2 S .356(thered a lar).055 F .356(ge follo)-.198 F 3.106
(wing. 1.00B)-.275 F .356(generated only LL\(1\) parsers, b)3.106 F .356
(ut allo)-.22 F .356(wed the mer)-.275 F .356(ged descrip-)-.198 F 1.859
(tion of le)72 423.2 R 1.859(xical and syntactic analysis.)-.165 F 1.86
(It had rudimentary attrib)7.359 F 1.86(ute handling similar to that of)-.22 F
-.55 -1.32(YA C)72 439.2 T 3.549(Ca)1.32 G .799
(nd did not incorporate rule parameters or return v)109.231 439.2 R .798
(alues; do)-.275 F(wnw)-.275 E .798(ard inheritance w)-.11 F .798(as v)-.11 F
(ery)-.165 E -.165(aw)72 455.2 S(kw).165 E 6.433(ard. 1.00B-generated)-.11 F
3.684(parsers terminated upon the \214rst syntax error)6.433 F 9.184(.L)-.605 G
-.165(ex)440.916 455.2 S 3.684(ical classes).165 F(\(modes\) were not allo)72
471.2 Q(wed and DLG did not ha)-.275 E .33 -.165(ve a)-.22 H 2.75(ni).165 G
(nteracti)305.959 471.2 Q .33 -.165(ve m)-.275 H(ode.).165 E .831
(Upon starting his Ph.D. at Purdue in the F)97 490.8 R .83(all of 1990, T)-.165
F .83(erence P)-.77 F .83(arr be)-.165 F -.055(ga)-.165 G 3.58(nt).055 G .83
(he second total)436.351 490.8 R(re)72 506.8 Q 1.646(write of ANTLR.)-.275 F
1.646(The method by which grammars may be practically analyzed to generate)
7.146 F/F4 11/Times-Italic@0 SF(LL)72.638 522.8 Q F1(\().583 E F4(k).396 E F1
3.849(\)l).737 G 1.099(ookahead information w)105.703 522.8 R 1.099(as disco)
-.11 F -.165(ve)-.165 G 1.099(red in August of 1990 just before his return.)
.165 F -1.221(Ve)6.598 G(rsion)1.221 E .626
(1.00 incorporated this algorithm and included the AST mechanism, le)72 538.8 R
.626(xical classes, error classes,)-.165 F .354(and automatic error reco)72
554.8 R -.165(ve)-.165 G .353(ry; code quality and portability were higher).165
F 5.853(.I)-.605 G 3.103(nF)395.965 554.8 S .353(ebruary of 1992 1.00)410.684
554.8 R -.11(wa)72 570.8 S 2.76(sr).11 G .01
(eleased via an article in SIGPLAN Notices.)95.418 570.8 R .01
(Peter Dahl, Ph.D. candidate, and Professor Matt)5.51 F(O'K)72 586.8 Q 2.074
(eefe \(both at the Uni)-.275 F -.165(ve)-.275 G 2.073
(rsity of Minnesota\) tested this v).165 F 2.073(ersion e)-.165 F(xtensi)-.165
E -.165(ve)-.275 G(ly).165 E 7.573(.D)-.715 G 2.073(ana Hogg)448.522 586.8 R
(att)-.055 E .078(\(Micro Data Base Systems, Inc.\) came up with the idea of e\
rror grouping \(strings attached to non-)72 602.8 R
(terminals\) and tested 1.00 hea)72 618.8 Q(vily)-.22 E(.)-.715 E -1.221(Ve)97
638.4 S .878(rsion 1.06 w)1.221 F .877
(as released in December 1992 and represented a lar)-.11 F .877
(ge feature enhancement)-.198 F -.165(ove)72 654.4 S 3.648(r1).165 G 3.648
(.00. F)100.365 654.4 R .898(or e)-.165 F .899
(xample, rudimentary semantic predicates were introduced, error messages were)
-.165 F 2.281(signi\214cantly impro)72 670.4 R -.165(ve)-.165 G 5.031(df).165 G
(or)181.953 670.4 Q F4(k)5.427 E F1 2.281
(>1 lookahead and ANTLR parsers could indicate that lookahead).737 F 1.381
(fetches were to occur only when necessary for the parse \(normally)72 686.4 R
4.131(,t)-.715 G 1.381(he lookahead `)387.051 686.4 R(`pipe')-.814 E 4.132('w)
-.814 G(as)494.837 686.4 Q 1.182(constantly full\).)72 702.4 R 1.182
(Russell Quong joined the project in the Spring of 1992 to aid in the semantic)
6.682 F .681(predicate design.)72 718.4 R(Be)6.181 E .681(ginning and adv)-.165
F .682(anced tutorials were created and released as well.)-.275 F 3.432(Am)
6.182 G(ak)485.179 718.4 Q(e-)-.11 E .993(\214le generator w)72 734.4 R .993
(as included that sets up dependencies and such correctly for ANTLR and DLG.)
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/F0 11/Times-Roman@0 SF 2.75(-2-)278.837 52 S -1.221(Ve)72 88 S 1.414(ry fe)
1.221 F 4.164(w1)-.275 G 1.414(.00 incompatibilities were introduced \(1.00 w)
122.81 88 R 1.415(as quite dif)-.11 F 1.415(ferent from 1.00B in some)-.275 F
(areas\).)72 104 Q 1.089(1.10 w)97 123.6 R 1.088
(as released on August 31, 1993 and incorporated b)-.11 F 1.088(ug \214x)-.22 F
1.088(es, a fe)-.165 F 3.838(wf)-.275 G 1.088(eature enhance-)433.59 123.6 R
3.112(ments and a major ne)72 139.6 R 5.863(wc)-.275 G(apability \212)196.957
139.6 Q 3.113(an arbitrary lookahead operator \(syntactic predicate\),)5.863 F
/F1 11/Courier@0 SF(\(alpha\)?beta)72 155.6 Q F0 6.754(.T)C 1.254
(his feature w)167.425 155.6 R 1.254
(as co-designed with Professor Russell Quong also at Purdue.)-.11 F 3.297 -.88
(To s)72 171.6 T 1.537
(upport in\214nite lookahead, a preprocessor \215ag, ZZINF_LOOK, w).88 F 1.537
(as created that forced the)-.11 F .21(ANTLR\(\) macro to tok)72 187.6 R .21
(enize all input prior to parsing.)-.11 F .209(Hence, at an)5.709 F 2.959(ym)
-.165 G .209(oment, an action or predi-)389.215 187.6 R .936
(cate can see the entire input sentence.)72 203.6 R .936
(The predicate mechanism of 1.06 w)6.436 F .937(as e)-.11 F .937
(xtended to allo)-.165 F(w)-.275 E .55
(multiple predicates to be hoisted; the syntactic conte)72 219.6 R .55
(xt of a predicate w)-.165 F .55(as also mo)-.11 F -.165(ve)-.165 G 3.299(da)
.165 G .549(long with)461.585 219.6 R(the predicate.)72 235.6 Q .754
(In February of 1994, SORCERER \(a simple tree-parser generator\) w)97 255.2 R
.755(as released.)-.11 F .755(This tool)6.255 F(allo)72 271.2 Q .6(ws the user\
 to parse child-sibling trees by specifying a grammar rather than b)-.275 F
.599(uilding a recur)-.22 F(-)-.22 E(si)72 287.2 Q -.165(ve)-.275 G 1.39
(-descent tree w).165 F(alk)-.11 E 1.391(er by hand.)-.11 F -.88(Wo)6.891 G
1.391(rk to).88 F -.11(wa)-.275 G 1.391
(rds a library of tree transformations is underw).11 F(ay)-.11 E(.)-.715 E .581
(Aaron Sa)72 303.2 R(wde)-.165 E 3.331(ya)-.165 G 3.331(tT)145.531 303.2 S .581
(he Uni)158.641 303.2 R -.165(ve)-.275 G .58
(rsity of Minnesota became a second author of SORCERER after the).165 F
(initial release.)72 319.2 Q .627(On April 1, 1994, PCCTS 1.20 w)97 338.8 R
.627(as released.)-.11 F .627(This w)6.127 F .627(as the \214rst v)-.11 F .627
(ersion to acti)-.165 F -.165(ve)-.275 G .627(ly support).165 F 1.664
(C++ output.)72 354.8 R 1.664(It also included important \214x)7.164 F 1.663
(es re)-.165 F -.055(ga)-.165 G 1.663
(rding semantic predicates and \(..\)+ subrules.).055 F(This v)72 370.8 Q
(ersion also introduced tok)-.165 E(en classes, the `)-.11 E(`)-.814 E/F2 11
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(nd tok)355.294 370.8 Q(en ranges.)-.11 E .764
(On June 19, 1994, SORCERER 1.00B9 w)97 390.4 R .765(as released.)-.11 F .765
(Gary Funck of Intrepid T)6.265 F(echnology)-.77 E .807
(joined the SORCERER team and pro)72 406.4 R .807(vided v)-.165 F .807(ery v)
-.165 F .807(aluable suggestions re)-.275 F -.055(ga)-.165 G .806(rding the `)
.055 F(`transform')-.814 E(')-.814 E(mode of SORCERER.)72 422.4 Q 1.137
(On August 8, 1994, PCCTS 1.21 w)97 442 R 1.137(as released.)-.11 F 1.138
(It mainly cleaned up the C++ output and)6.637 F(included a number of b)72 458
Q(ug \214x)-.22 E(es.)-.165 E .316(From the 1.21 release forw)97 477.6 R .316
(ard, the maintenance and support of all PCCTS tools will be pri-)-.11 F 1.557
(marily pro)72 493.6 R 1.557(vided by P)-.165 F 1.557
(arr Research Corporation, Minneapolis MN---an or)-.165 F -.055(ga)-.198 G
1.558(nization founded on).055 F 1.616(the principles of e)72 509.6 R 1.616
(xcellence in research and inte)-.165 F 1.616(grity in b)-.165 F 1.616
(usiness; we are de)-.22 F -.22(vo)-.275 G 1.616(ted to pro).22 F(viding)-.165
E 1.202(really cool softw)72 525.6 R 1.202(are tools.)-.11 F 1.202
(Please see \214le PCCTS.FUTURE for more information.)6.702 F 1.203(All PCCTS)
6.703 F(tools currently in the public domain will continue to be in the public\
 domain.)72 541.6 Q 1.198(Looking to)97 561.2 R -.11(wa)-.275 G 1.198
(rds the future, a graphical user).11 F(-interf)-.22 E 1.197
(ace is in the design phase.)-.11 F 1.197(This w)6.697 F(ould)-.11 E(allo)72
577.2 Q 2.753(wu)-.275 G .003(sers to vie)104.42 577.2 R 2.753(wt)-.275 G .004
(he syntax diagram representation of their grammars and w)162.509 577.2 R .004
(ould highlight non-)-.11 F 1.181(deterministic productions.)72 593.2 R -.165
(Pa)6.681 G 1.18(rsing can be traced graphically as well.).165 F 1.18
(This system will be b)6.68 F(uilt)-.22 E .167(using a multiplatform windo)72
609.2 R 2.917(wl)-.275 G(ibrary)211.73 609.2 Q 5.667(.W)-.715 G 2.917(ea)
255.204 609.2 S .168(lso anticipate the introduction of a sophisticated error)
267.889 609.2 R(handling mechanism called `)72 625.2 Q(`parser e)-.814 E
(xception handling')-.165 E 2.75('i)-.814 G 2.75(nan)327.431 625.2 S
(ear future release.)348.815 625.2 Q(Currently)97 644.8 Q 3.019(,P)-.715 G .269
(CCTS is used at o)150.333 644.8 R -.165(ve)-.165 G 3.019(r1).165 G .269
(000 kno)253.098 644.8 R .268(wn academic, go)-.275 F -.165(ve)-.165 G .268
(rnment, and commercial sites).165 F .859(in 37 countries.)72 660.8 R .859
(Of course, the true number of users is unkno)6.359 F .859(wn due to the lar)
-.275 F .859(ge number of ftp)-.198 F(sites.)72 676.8 Q EP
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/F0 11/Times-Roman@0 SF 2.75(-3-)278.837 52 S(Credits)272.11 88 Q .44 LW
472.162 103.75 103.838 103.75 DL(Idea/T)134.236 117 Q 52.987(ool Coder)-.88 F
(Co-designer\(s\))345.436 117 Q 281.334 103.75 281.334 124.75 DL 209.273 103.75
209.273 124.75 DL 209.273 124.75 103.838 124.75 DL 103.838 126.75 209.273
126.75 DL 281.334 124.75 209.273 124.75 DL 209.273 126.75 281.334 126.75 DL
472.162 124.75 281.334 124.75 DL 281.334 126.75 472.162 126.75 DL(ANTLR 1.00A)
109.338 140 Q -.77(Te)217.523 140 S(rence P).77 E 13.75(arr Hank)-.165 F(Dietz)
2.75 E 82.83(ALX T)109.338 156 R(erence P)-.77 E 13.75(arr Hank)-.165 F(Dietz)
2.75 E(ANTLR 1.00B)109.338 172 Q -.77(Te)217.523 172 S(rence P).77 E 13.75
(arr Hank)-.165 F(Dietz, W)2.75 E(ill Cohen)-.44 E(DLG 1.00B)109.338 188 Q -.44
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E 2.75(,H)-.44 G(ank Dietz)358.147 188 Q(NF)109.338 204 Q 2.75(AR)-.814 G
30.778(elabelling W)140.611 204 R(ill Cohen)-.44 E/F1 11/Times-Italic@0 SF(LL)
109.976 220 Q F0(\().583 E F1(k).396 E F0 2.75(\)a).737 G 40.447(nalysis T)
143.768 220 R(erence P)-.77 E 13.75(arr Hank)-.165 F(Dietz)2.75 E(ANTLR 1.00)
109.338 236 Q -.77(Te)217.523 236 S(rence P).77 E 13.75(arr Hank)-.165 F
(Dietz, W)2.75 E(ill Cohen)-.44 E(DLG 1.00)109.338 252 Q -.44(Wi)217.523 252 S
(ll Cohen).44 E -.77(Te)289.584 252 S(rence P).77 E(arr)-.165 E 2.75(,H)-.44 G
(ank Dietz)358.147 252 Q(ANTLR 1.06)109.338 268 Q -.77(Te)217.523 268 S
(rence P).77 E 13.75(arr W)-.165 F(ill Cohen, Russell Quong, Hank Dietz)-.44 E
(DLG 1.06)109.338 284 Q -.44(Wi)217.523 284 S(ll Cohen).44 E -.77(Te)289.584
284 S(rence P).77 E(arr)-.165 E 2.75(,H)-.44 G(ank Dietz)358.147 284 Q
(ANTLR 1.10)109.338 300 Q -.77(Te)217.523 300 S(rence P).77 E 13.75(arr W)-.165
F(ill Cohen, Russell Quong)-.44 E(ANTLR 1.20)109.338 316 Q -.77(Te)217.523 316
S(rence P).77 E 13.75(arr W)-.165 F(ill Cohen, Russell Quong)-.44 E(ANTLR 1.21)
109.338 332 Q -.77(Te)217.523 332 S(rence P).77 E 13.75(arr Russell)-.165 F
(Quong)2.75 E(DLG 1.10)109.338 348 Q -.44(Wi)217.523 348 S(ll Cohen).44 E -.77
(Te)289.584 348 S(rence P).77 E(arr)-.165 E(DLG 1.20)109.338 364 Q -.44(Wi)
217.523 364 S(ll Cohen).44 E -.77(Te)289.584 364 S(rence P).77 E(arr)-.165 E
(DLG 1.21)109.338 380 Q -.77(Te)217.523 380 S(rence P).77 E(arr)-.165 E
(Semantic predicates)109.338 396 Q -.77(Te)217.523 396 S(rence P).77 E 13.75
(arr Russell)-.165 F(Quonq)2.75 E(Syntactic predicates)109.338 412 Q -.77(Te)
217.523 412 S(rence P).77 E 13.75(arr Russell)-.165 F(Quonq)2.75 E
(SORCERER 1.00A)109.338 428 Q -.77(Te)217.523 428 S(rence P).77 E(arr)-.165 E
(SORCERER 1.00B)109.338 444 Q -.77(Te)217.523 444 S(rence P).77 E 13.75
(arr Aaron)-.165 F(Sa)2.75 E(wde)-.165 E(y)-.165 E(SORCERER 1.00B9)109.338 460
Q -.77(Te)217.523 460 S(rence P).77 E 13.75(arr Aaron)-.165 F(Sa)2.75 E(wde)
-.165 E 1.43 -.715(y, G)-.165 H(ary Funck).715 E 472.162 467.75 103.838 467.75
DL 472.162 103.75 472.162 467.75 DL 103.838 103.75 103.838 467.75 DL EP
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