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FLEXDOC.1：源码内容

4139(routine)S
4456(to)S
(convert)302 4566 A
4900(yytext)S
5183(to)S
4416 V
1080(lower-case.)S
4584 V
1080(The)S
1269(macro)S
10 B
1554(YY_USER_INIT)S
10 R
2320(may)S
2526(be)S
2654(rede256ned)S
3062(to)S
3173(provide)S
3513(an)S
3641(action)S
3920(which)S
4199(is)S
4299(always)S
4612(executed)S
5003(before)S
4704 V
1080(the)S
1232(256rst)S
1418(scan)S
1626((and)S
1834(before)S
2121(the)S
2273(scanner's)S
2683(internal)S
(initializations)548 3020 A
3597(are)S
(done).)254 3750 A
4057(For)S
4225(example,)S
4619(it)S
4703(could)S
4954(be)S
5077(used)S
4824 V
1080(to)S
1183(call)S
1354(a)S
1424(routine)S
1734(to)S
1837(read)S
2036(in)S
2139(a)S
2209(data)S
2402(table)S
2623(or)S
2732(open)S
2952(a)S
(logging)306 3022 A
3353(256le.)S
4992 V
1080(In)S
1192(the)S
1343(generated)S
1763(scanner,)S
2124(the)S
2275(actions)S
2588(are)S
2740(all)S
2869(gathered)S
3244(in)S
3350(one)S
3523(large)S
3753(switch)S
4045(statement)S
4460(and)S
4634(separated)S
5044(using)S
5112 V
10 B
1080(YY_BREAK,)S
10 R
1702(which)S
1991(may)S
2207(be)S
2345(rede256ned.)S
2813(By)S
2973(default,)S
3321(it)S
3420(is)S
3530(simply)S
3846(a)S
3934("break",)S
4308(to)S
4429(separate)S
(each)185 4803 A
5031(rule's)S
5232 V
1080(action)S
1358(from)S
1586(the)S
1741(following)S
2164(rule's.)S
2476(Rede256ning)S
10 B
2949(YY_BREAK)S
10 R
3535(allows,)S
3855(for)S
4005(example,)S
4403(C++)S
4616(users)S
4855(to)S
4965(#de256ne)S
5352 V
1080(YY_BREAK)S
1645(to)S
1750(do)S
1877(nothing)S
2210((while)S
2495(being)S
2745(very)S
2951(careful)S
3259(that)S
3437(every)S
3688(rule)S
3871(ends)S
4081(with)S
4286(a)S
4357("break")S
4689(or)S
4799(a)S
4870("return"!))S
5472 V
1080(to)S
1206(avoid)S
1477(suffering)S
1889(from)S
(unreachable)487 2133 A
2668(statement)S
3102(warnings)S
3519(where)S
(because)319 3814 A
4181(a)S
4275(rule's)S
4554(action)S
4849(ends)S
5082(with)S
5592 V
1080("return",)S
1453(the)S
10 B
1601(YY_BREAK)S
10 R
2180(is)S
(inaccessible.)512 2272 A
5760 V
9 R
720(I)S
722(IN)S
755(NT)S
823(TE)S
881(ER)S
939(RF)S
1001(FA)S
1053(AC)S
1121(CI)S
1183(IN)S
1216(NG)S
1284(G)S
1390(W)S
1392(WI)S
1480(IT)S
1513(TH)S
1571(H)S
1677(Y)S
1679(YA)S
1747(AC)S
1815(CC)S
1877(C)S
5880 V
10 R
1080(One)S
1274(of)S
1384(the)S
1533(main)S
1761(uses)S
1961(of)S
10 I
2072(257ex)S
10 R
2239(is)S
2333(as)S
2444(a)S
2516(companion)S
2989(to)S
3094(the)S
10 I
3244(yacc)S
10 R
3456(parser-generator.)S
10 I
4195(yacc)S
10 R
4407(parsers)S
4720(expect)S
5010(to)S
5115(call)S
6000 V
1080(a)S
1156(routine)S
1472(named)S
10 B
1771(yylex())S
10 R
2093(to)S
2202(256nd)S
2389(the)S
2543(next)S
(input)206 2747 A
2984(token.)S
3287(The)S
3474(routine)S
3789(is)S
(supposed)373 3886 A
4289(to)S
4397(return)S
4668(the)S
4821(type)S
5024(of)S
5138(the)S
6120 V
1080(next)S
1293(token)S
1556(as)S
1680(well)S
1894(as)S
(putting)284 2018 A
2342(any)S
2527(associated)S
2981(value)S
3239(in)S
3358(the)S
3522(global)S
10 B
3814(yylval.)S
10 R
4136(To)S
4289(use)S
10 I
4464(257ex)S
10 R
4645(with)S
10 I
4865(yacc,)S
10 R
5116(one)S
6240 V
1080(speci256es)S
1458(the)S
10 B
1612(-d)S
10 R
1732(option)S
2018(to)S
10 I
2126(yacc)S
10 R
2341(to)S
2449(instruct)S
2781(it)S
2867(to)S
2975(generate)S
3347(the)S
3500(256le)S
10 B
3659(y.tab.h)S
10 R
3985(containing)S
(de256nitions)424 4439 A
4893(of)S
5007(all)S
5138(the)S
6360 V
10 B
1080(%tokens)S
10 R
1485(appearing)S
1907(in)S
2010(the)S
10 I
2158(yacc)S
10 R
(input.)231 2368 A
2649(This)S
2853(256le)S
3007(is)S
3099(then)S
3297(included)S
3668(in)S
3771(the)S
10 I
3920(257ex)S
10 R
4086(scanner.)S
4470(For)S
4636(example,)S
5028(if)S
5116(one)S
6480 V
1080(of)S
1189(the)S
1337(tokens)S
1624(is)S
1716("TOK_NUMBER",)S
2537(part)S
2719(of)S
2828(the)S
2976(scanner)S
3309(might)S
(look)178 3568 A
3771(like:)S
6720 V
1180(%{)S
6840 V
1180(#include)S
1551("y.tab.h")S
6960 V
1180(%})S
7200 V
1180(%%)S
7440 V
1180([0-9]+)S
1639(yylval)S
1915(=)S
1997(atoi()S
2207(yytext)S
2483();)S
2570(return)S
2836(TOK_NUMBER;)S
7903 V
720(September)S
1176(13,)S
(1996)200 1326 A
2681(()S
2723(26)S
2848(May)S
(1990)200 3057 A
3265())S
4940(Page)S
5161(14)S
8143 V
EP
%%Page: 15 15
BP
/slant 0 def
/height 0 def
480 V
10 R
720(FLEX)S
981(()S
1023(1)S
1081())S
2756(Version)S
3100(2.3)S
4866(FLEX)S
5127(()S
5169(1)S
5227())S
960 V
9 R
720(T)S
722(TR)S
780(RA)S
842(AN)S
910(NS)S
978(SL)S
1030(LA)S
1088(AT)S
1156(TI)S
1214(IO)S
1247(ON)S
1315(N)S
1421(T)S
1423(TA)S
1481(AB)S
1549(BL)S
1611(LE)S
1669(E)S
1080 V
10 R
1080(In)S
1196(the)S
1351(name)S
1601(of)S
1717(POSIX)S
2041(compliance,)S
10 I
2562(257ex)S
10 R
(supports)340 2734 A
3106(a)S
10 I
3183(translation)S
3655(table)S
10 R
3888(for)S
4039(mapping)S
(input)206 4423 A
4662(characters)S
5105(into)S
1200 V
(groups.)298 1080 A
1428(The)S
1610(table)S
1831(is)S
1923(speci256ed)S
2306(in)S
2409(the)S
2557(256rst)S
2739(section,)S
3074(and)S
3244(its)S
3364(format)S
(looks)217 3658 A
3900(like:)S
1440 V
1180(%t)S
1560 V
1180(1)S
1430(abcd)S
1680 V
1180(2)S
1430(ABCDEFGHIJKLMNOPQRSTUVWXYZ)S
1800 V
1180(52)S
(0123456789)500 1455 A
1920 V
1180(6)S
(\t\)84 1430 A
1539(\n)S
2040 V
1180(%t)S
2280 V
1080(This)S
1299(example)S
1680(speci256es)S
2067(that)S
2258(the)S
2422(characters)S
2873('a',)S
3052('b',)S
3236('c',)S
3415(and)S
3601('d')S
3760(are)S
3925(to)S
4044(all)S
4186(be)S
4322(lumped)S
4664(into)S
(group)234 4861 A
5136(#1,)S
2400 V
(upper-case)437 1080 A
1554(letters)S
1837(in)S
(group)234 1951 A
2221(#2,)S
2382(digits)S
2641(in)S
(group)234 2755 A
(#52,)175 3025 A
3236(tabs,)S
3459(blanks,)S
3782(and)S
3963(newlines)S
4357(into)S
(group)234 4549 A
4819(#6,)S
4980(and)S
10 I
5161(no)S
2520 V
1080(other)S
1323(characters)S
(will)151 1784 A
(appear)284 1966 A
2281(in)S
2390(the)S
2544(patterns.)S
10 R
2954(The)S
(group)234 3142 A
3407(numbers)S
3784(are)S
3939(actually)S
4289(disregarded)S
4790(by)S
10 I
4921(257ex;)S
10 B
5127(%t)S
2640 V
10 R
1080(serves,)S
(though,)303 1384 A
1714(to)S
1819(lump)S
2052(characters)S
2489(together.)S
2895(Given)S
3167(the)S
(above)240 3316 A
3582(table,)S
3829(for)S
3973(example,)S
4365(the)S
4514(pattern)S
4820("a(AA)*5")S
2760 V
1080(is)S
1184(equivalent)S
1640(to)S
1755("d(ZQ)*0".)S
2277(They)S
2521(both)S
2736(say,)S
2933("match)S
3258(any)S
3441(character)S
3850(in)S
(group)234 3966 A
4238(#1,)S
4401(followed)S
4797(by)S
4935(zero-or-)S
2880 V
1080(more)S
1314(pairs)S
1537(of)S
1648(characters)S
2085(from)S
(group)234 2308 A
2569(#2,)S
2721(followed)S
3106(by)S
3233(a)S
3305(character)S
3703(from)S
(group)234 3926 A
(#52.")216 4187 A
4455(Thus)S
10 B
4683(%t)S
10 R
4844(provides)S
5216(a)S
3000 V
1080(crude)S
1329(way)S
1522(for)S
(introducing)463 1665 A
2153(equivalence)S
2659(classes)S
2964(into)S
3145(the)S
3293(scanner)S
3626(speci256cation.)S
3168 V
1080(Note)S
1306(that)S
1487(the)S
10 B
1640(-i)S
10 R
1732(option)S
2018((see)S
2211(below))S
(coupled)318 2521 A
2869(with)S
3078(the)S
3232(equivalence)S
3744(classes)S
4055(which)S
10 I
4332(257ex)S
10 R
4503(automatically)S
5082(gen-)S
3288 V
1080(erates)S
1345(take)S
1542(care)S
1740(of)S
1852(virtually)S
2221(all)S
2350(the)S
2501(instances)S
2898(when)S
3144(one)S
3317(might)S
3579(consider)S
3948(using)S
10 B
4193(%t.)S
10 R
4380(But)S
4553(what)S
4777(the)S
4928(hell,)S
5132(it's)S
3408 V
1080(there)S
1307(if)S
(you)150 1394 A
1569(want)S
1790(it.)S
3576 V
9 R
720(O)S
722(OP)S
790(PT)S
842(TI)S
900(IO)S
933(ON)S
1001(NS)S
1069(S)S
3696 V
10 I
1080(257ex)S
10 R
1245(has)S
1404(the)S
1552(following)S
1968(options:)S
3864 V
10 B
1080(-b)S
10 R
1440(Generate)S
1850(backtracking)S
2415(information)S
2935(to)S
10 I
3058(lex.backtrack.)S
10 R
3668(This)S
3892(is)S
4004(a)S
4094(list)S
4262(of)S
4391(scanner)S
4745(states)S
5015(which)S
3984 V
1440(require)S
1760(backtracking)S
2314(and)S
2493(the)S
(input)206 2650 A
2890(characters)S
3334(on)S
3468(which)S
3747(they)S
3953(do)S
4086(so.)S
4258(By)S
4408(adding)S
4714(rules)S
4943(one)S
5121(can)S
4104 V
1440(remove)S
1773(backtracking)S
2324(states.)S
2629(If)S
2728(all)S
2860(backtracking)S
3411(states)S
3666(are)S
3821(eliminated)S
4277(and)S
10 B
4454(-f)S
10 R
4554(or)S
10 B
4670(-F)S
10 R
4798(is)S
4897(used,)S
5138(the)S
4224 V
1440(generated)S
1861(scanner)S
(will)157 2198 A
2384(run)S
2547(faster)S
2801((see)S
2993(the)S
10 B
3145(-p)S
10 R
3264(257ag).)S
3528(Only)S
3758(users)S
3994(who)S
4196(wish)S
4415(to)S
(squeeze)319 4522 A
4869(every)S
5121(last)S
4344 V
1440(cycle)S
1699(out)S
1873(of)S
2004(their)S
2236(scanners)S
2630(need)S
2867(worry)S
(about)223 3155 A
3425(this)S
3617(option.)S
3970((See)S
4197(the)S
4367(section)S
4699(on)S
4846(PERFOR-)S
4464 V
1440(MANCE)S
1829(CONSIDERATIONS)S
2730(below.))S
4632 V
10 B
1080(-c)S
10 R
1440(is)S
1532(a)S
1602(do-nothing,)S
(deprecated)437 2092 A
2554(option)S
2835(included)S
3206(for)S
3349(POSIX)S
3666(compliance.)S
4800 V
10 B
1440(NOTE:)S
10 R
1787(in)S
1893(previous)S
2267(releases)S
2615(of)S
10 I
2727(flex)S
10 B
2901(-c)S
10 R
3008(specified)S
3400(table-compression)S
4166(options.)S
4539(This)S
(functionality)514 4747 A
4920 V
1440(is)S
1535(now)S
1736(given)S
1987(by)S
2114(the)S
10 B
2264(-C)S
10 R
2398(flag.)S
2632(To)S
2771(ease)S
2972(the)S
3122(the)S
3272(impact)S
3573(of)S
3684(this)S
3856(change,)S
4193(when)S
10 I
4438(flex)S
10 R
(encounters)436 4611 A
10 B
5074(-c,)S
10 R
5205(it)S
5040 V
1440(currently)S
1829(issues)S
2094(a)S
2164(warning)S
2520(message)S
2887(and)S
3058(assumes)S
3419(that)S
10 B
3596(-C)S
10 R
3729(was)S
3912(desired)S
4229(instead.)S
4590(In)S
4700(the)S
4849(future)S
5116(this)S
5160 V
1440("promotion")S
1984(of)S
10 B
2112(-c)S
10 R
2235(to)S
10 B
2357(-C)S
10 R
(will)157 2508 A
2709(go)S
2853(away)S
3110(in)S
3231(the)S
3397(name)S
3658(of)S
3785(full)S
3968(POSIX)S
4303(compliance)S
4810((unless)S
5138(the)S
5280 V
1440(POSIX)S
1757(meaning)S
2128(is)S
2220(removed)S
2597(first).)S
5448 V
10 B
1080(-d)S
10 R
1440(makes)S
1732(the)S
1890(generated)S
2317(scanner)S
2660(run)S
2829(in)S
10 I
(debug)245 2942 A
10 R
3222(mode.)S
3530(Whenever)S
3979(a)S
4060(pattern)S
4376(is)S
(recognized)442 4479 A
4957(and)S
5138(the)S
5568 V
1440(global)S
10 B
(yy_257ex_debug)614 1719 A
10 R
2361(is)S
(non-zero)358 2456 A
2842((which)S
3150(is)S
3245(the)S
3396(default),)S
3762(the)S
3912(scanner)S
(will)157 4247 A
4431(write)S
4666(to)S
10 I
4771(stderr)S
10 R
5038(a)S
5110(line)S
5688 V
1440(of)S
1549(the)S
1697(form:)S
5928 V
(--accepting)454 1540 A
2019(rule)S
2201(at)S
2299(line)S
2475(53)S
2600(("the)S
2823(matched)S
3189(text"))S
6168 V
1440(The)S
1628(line)S
1810(number)S
2148(refers)S
2410(to)S
2519(the)S
2673(location)S
3028(of)S
3143(the)S
3297(rule)S
3485(in)S
3594(the)S
3748(256le)S
3908(de256ning)S
4268(the)S
4423(scanner)S
4763((i.e.,)S
4977(the)S
5132(256le)S
6288 V
1440(that)S
1626(was)S
1817(fed)S
1980(to)S
2092(257ex).)S
2361(Messages)S
2786(are)S
2944(also)S
3140(generated)S
3566(when)S
3818(the)S
3975(scanner)S
4317(backtracks,)S
(accepts)297 4807 A
5138(the)S
6408 V
1440(default)S
1755(rule,)S
(reaches)303 1972 A
2310(the)S
2468(end)S
2648(of)S
2767(its)S
(input)206 2897 A
3138(buffer)S
3420((or)S
(encounters)436 3573 A
4044(a)S
4124(NUL;)S
4395(at)S
4503(this)S
4684(point,)S
4951(the)S
5110(two)S
6528 V
(look)178 1440 A
1643(the)S
1791(same)S
2023(as)S
2132(far)S
2270(as)S
2379(the)S
2527(scanner's)S
2933(concerned),)S
3431(or)S
(reaches)303 3540 A
3868(an)S
3988(end-of-256le.)S
6696 V
10 B
1080(-f)S
10 R
1440(speci256es)S
1817((take)S
(your)184 2049 A
2263(pick))S
10 I
2500(full)S
2664(table)S
10 R
2895(or)S
10 I
3009(fast)S
(scanner.)343 3184 A
10 R
3557(No)S
3710(table)S
3936(compression)S
4475(is)S
(done.)220 4573 A
4849(The)S
5037(result)S
6816 V
1440(is)S
1532(large)S
1759(but)S
1912(fast.)S
2133(This)S
2337(option)S
2618(is)S
2710(equivalent)S
3154(to)S
10 B
3257(-Cf)S
10 R
3423((see)S
3611(below).)S
6984 V
10 B
1080(-i)S
10 R
1440(instructs)S
10 I
1810(257ex)S
10 R
1979(to)S
2086(generate)S
2458(a)S
10 I
(case-insensitive)638 2533 A
10 R
3201(scanner.)S
3589(The)S
3776(case)S
3980(of)S
4094(letters)S
4371(given)S
4624(in)S
4732(the)S
10 I
4885(257ex)S
10 R
(input)206 5055 A
7104 V
1440(patterns)S
(will)157 1802 A
2002(be)S
(ignored,)332 2140 A
2515(and)S
2703(tokens)S
3008(in)S
3129(the)S
(input)206 3294 A
(will)157 3542 A
3741(be)S
3878(matched)S
4261(regardless)S
4712(of)S
4838(case.)S
5104(The)S
7224 V
1440(matched)S
1806(text)S
1982(given)S
2230(in)S
10 I
2333(yytext)S
10 R
(will)157 2594 A
2776(have)S
2991(the)S
3139(preserved)S
3556(case)S
3755((i.e.,)S
3962(it)S
(will)157 4043 A
4225(not)S
4378(be)S
4498(folded).)S
7392 V
10 B
1080(-n)S
10 R
1440(is)S
1532(another)S
1859(do-nothing,)S
(deprecated)437 2349 A
2811(option)S
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(...,)100 3138 A
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3726(be)S
3849(put)S
4005(in)S
4111(the)S
4262(same)S
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5006(class).)S
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1440(Equivalence)S
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2608(give)S
2814(dramatic)S
3200(reductions)S
3652(in)S
3763(the)S
3919(final)S
4137(table/object)S
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4808(sizes)S
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2319(and)S
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2648(pretty)S
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1440(scanned).)S
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10 B
1440(-Cf)S
10 R
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2006(that)S
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10 I
2352(full)S
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2522(scanner)S
2866(tables)S
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10 I
4069(flex)S
10 R
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2101(advantages)S
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1440(-CF)S
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4946(-F)S
10 R
5070(flag))S
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1732(be)S
1852(used.)S
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1440(-Cm)S
10 R
1662(directs)S
10 I
1962(flex)S
10 R
2139(to)S
2249(construct)S
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2650(meta-equivalence)S
3393(classes,)S
10 R
3735(which)S
4013(are)S
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1774(-C)S
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2322(that)S
2517(the)S
2684(scanner)S
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3626(be)S
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3237(be)S
3357(used.)S
4536 V
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1968(-Cf)S
10 R
2147(or)S
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2269(-CF)S
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2476(and)S
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2659(-Cm)S
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1701(mixed.)S
4944 V
1440(The)S
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2232(is)S
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2328(-Cem,)S
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3275(that)S
10 I
3455(flex)S
10 R
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3409(the)S
3559(highest)S
3876(degree)S
4172(of)S
4282(table)S
4504(compression.)S
5088(You)S
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1981(faster-executing)S
2658(scanners)S
3032(at)S
3132(the)S
3282(cost)S
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1970(smallest)S
5664 V
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5784 V
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5904 V
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6024 V
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6144 V
1690(-C{f,F}e)S
6264 V
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6384 V
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2628(usually)S
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3267(use)S
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10 B
1440(-Cfe)S
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1975(a)S
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2270(compromise)S
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1440(forgotten.)S
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10 B
1080(-Sskeleton_file)S
7488 V
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1847(the)S
2002(default)S
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2681(256le)S
2842(from)S
3070(which)S
10 I
3348(257ex)S
10 R
3520(constructs)S
3960(its)S
4088(scanners.)S
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5071(need)S
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720(Page)S
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2681(()S
2723(26)S
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3265())S
4455(September)S
4911(13,)S
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8143 V
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/slant 0 def
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480 V
10 R
720(FLEX)S
981(()S
1023(1)S
1081())S
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4866(FLEX)S
5127(()S
5169(1)S
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1440(this)S
1610(option)S
1891(unless)S
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2342(are)S
2491(doing)S
10 I
2744(257ex)S
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3443(or)S
3552(development.)S
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9 R
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722(PE)S
774(ER)S
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1248 V
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1269(main)S
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2001(of)S
10 I
2117(257ex)S
10 R
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1996(a)S
2072(number)S
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3441(degrade)S
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5066(most)S
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1080(expensive)S
1507(to)S
1610(least:)S
1848 V
1180(REJECT)S
2088 V
1180(pattern)S
1485(sets)S
1661(that)S
1837(require)S
2148(backtracking)S
2208 V
1180(arbitrary)S
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1869(context)S
2448 V
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1307(beginning-of-line)S
2036(operator)S
2568 V
1180(yymore())S
2808 V
1080(with)S
1284(the)S
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1967(being)S
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3038(the)S
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3351(two)S
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3775(quite)S
4001(cheap.)S
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1080(REJECT)S
10 R
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1804(be)S
1929(avoided)S
2277(at)S
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1550(of)S
1662(backtracking)S
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2305(messy)S
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4312(work)S
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4769(complicated)S
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1080(scanner.)S
1467(In)S
1580(principal,)S
1991(one)S
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2454(by)S
2582(using)S
2827(the)S
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2978(-b)S
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3096(257ag)S
3275(to)S
3381(generate)S
3751(a)S
10 I
3824(lex.backtrack)S
10 R
4392(256le.)S
4599(For)S
4767(example,)S
5161(on)S
3504 V
1080(the)S
(input)206 1228 A
3744 V
1180(%%)S
3864 V
1180(foo)S
1514(return)S
1780(TOK_KEYWORD;)S
3984 V
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1568(return)S
1834(TOK_KEYWORD;)S
4224 V
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1228(256le)S
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1624(like:)S
4464 V
1180(State)S
1407(#6)S
1532(is)S
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2219(-)S
4584 V
1205(associated)S
1644(rule)S
1826(line)S
2002(numbers:)S
4704 V
1355(2)S
1580(3)S
4824 V
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1898(o)S
1973(])S
4944 V
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2078([)S
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2736(])S
5184 V
1180(State)S
1407(#8)S
1532(is)S
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2219(-)S
5304 V
1205(associated)S
1644(rule)S
1826(line)S
2002(numbers:)S
5424 V
1355(3)S
5544 V
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1839([)S
1898(a)S
1968(])S
5664 V
(jam-transitions:)632 1205 A
1862(EOF)S
2078([)S
(\001-`)246 2137 A
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2720(])S
5904 V
1180(State)S
1407(#9)S
1532(is)S
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2219(-)S
6024 V
1205(associated)S
1644(rule)S
1826(line)S
2002(numbers:)S
6144 V
1355(3)S
6264 V
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1898(r)S
1957(])S
6384 V
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2078([)S
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6624 V
1180(Compressed)S
1702(tables)S
1962(always)S
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1588(when)S
1836(trying)S
2106(to)S
2214(match)S
2490(the)S
2643(rules)S
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3236(lines)S
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3791(in)S
3899(the)S
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4747(have)S
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5071(back)S
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720(September)S
1176(13,)S
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2681(()S
2723(26)S
2848(May)S
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3265())S
4940(Page)S
5161(18)S
8143 V
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/slant 0 def
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480 V
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3667(up)S
3794(to)S
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1080(ment)S
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1886(reminds)S
2242(us)S
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3598(all)S
3732(the)S
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1954(we're)S
2212(using)S
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2456(-f)S
10 R
2551(or)S
10 B
2662(-F,)S
10 R
2810(since)S
3044(there's)S
3346(no)S
3473(performance)S
4010(gain)S
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2033(backtracking)S
2578(is)S
2670(to)S
2773(add)S
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3247(rules:)S
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2304 V
1180(foo)S
1539(return)S
1805(TOK_KEYWORD;)S
2424 V
(foobar)263 1180 A
1593(return)S
1859(TOK_KEYWORD;)S
2664 V
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1584(|)S
2784 V
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1180(fo)S
1514({)S
3024 V
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1583(false)S
1799(alarm,)S
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2557(keyword)S
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1746(TOK_ID;)S
3264 V
1480(})S
3552 V
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4170("catch-all")S
4625(rule:)S
3792 V
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3912 V
1180(foo)S
1539(return)S
1805(TOK_KEYWORD;)S
4032 V
(foobar)263 1180 A
1593(return)S
1859(TOK_KEYWORD;)S
4272 V
1180([a-z]+)S
1579(return)S
1845(TOK_ID;)S
4512 V
1080(This)S
1284(is)S
1376(usually)S
1691(the)S
1839(best)S
2026(solution)S
2374(when)S
2617(appropriate.)S
4680 V
1080(Backtracking)S
1643(messages)S
2049(tend)S
2248(to)S
2352(cascade.)S
2742(With)S
2969(a)S
3041(complicated)S
3560(set)S
3699(of)S
3810(rules)S
4033(it's)S
4189(not)S
4344(uncommon)S
4822(to)S
4927(get)S
(hun-)184 5077 A
4800 V
1080(dreds)S
1331(of)S
1448(messages.)S
1911(If)S
2012(one)S
2190(can)S
2363(decipher)S
2743(them,)S
(though,)303 3002 A
3338(it)S
3427(often)S
3667(only)S
3878(takes)S
4118(a)S
4196(dozen)S
4469(or)S
4586(so)S
4708(rules)S
4937(to)S
5048(elim-)S
4920 V
1080(inate)S
1305(the)S
1457(backtracking)S
((though)312 2006 A
2347(it's)S
2506(easy)S
2715(to)S
2823(make)S
3071(a)S
3146(mistake)S
3489(and)S
3664(have)S
3884(an)S
4009(error)S
4236(rule)S
(accidentally)487 4423 A
4940(match)S
5216(a)S
5040 V
1080(valid)S
1306(token.)S
1604(A)S
1702(possible)S
2056(future)S
10 I
2322(257ex)S
10 R
2487(feature)S
(will)157 2793 A
2975(be)S
3095(to)S
3198(automatically)S
3771(add)S
3941(rules)S
4162(to)S
4265(eliminate)S
4665(backtracking).)S
5208 V
10 I
1080(Variable)S
10 R
(trailing)291 1464 A
1787(context)S
2115((where)S
2428(both)S
2638(the)S
2793(leading)S
3121(and)S
(trailing)291 3298 A
3622(parts)S
3851(do)S
3984(not)S
4145(have)S
4368(a)S
4446(256xed)S
4680(length))S
4998(entails)S
5328 V
1080(almost)S
1373(the)S
1521(same)S
1753(performance)S
2288(loss)S
2469(as)S
10 I
2578(REJECT)S
10 R
2957((i.e.,)S
3164(substantial).)S
3703(So)S
3834(when)S
4077(possible)S
4431(a)S
4501(rule)S
4683(like:)S
5568 V
1180(%%)S
5688 V
(mouse|rat/(cat|dog))773 1180 A
2028(run();)S
5928 V
1080(is)S
1172(better)S
(written:)314 1427 A
6168 V
1180(%%)S
6288 V
(mouse/cat|dog)578 1180 A
1983(run();)S
6408 V
(rat/cat|dog)423 1180 A
1878(run();)S
6648 V
1080(or)S
1189(as)S
6888 V
1180(%%)S
7008 V
1180(mouse|rat/cat)S
1940(run();)S
7128 V
(mouse|rat/dog)567 1180 A
1972(run();)S
7368 V
1080(Note)S
1303(that)S
1481(here)S
1682(the)S
1832(special)S
2139('|')S
2254(action)S
2527(does)S
10 I
2738(not)S
10 R
2893(provide)S
3227(any)S
3399(savings,)S
3752(and)S
3924(can)S
4092(even)S
4310(make)S
4556(things)S
4829(worse)S
5098((see)S
7488 V
10 B
1080(BUGS)S
10 R
1379(in)S
1482(257ex(1)).)S
7903 V
720(Page)S
941(19)S
2681(()S
2723(26)S
2848(May)S
(1990)200 3057 A
3265())S
4455(September)S
4911(13,)S
(1996)200 5061 A
8143 V
EP
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/slant 0 def
/height 0 def
480 V
10 R
720(FLEX)S
981(()S
1023(1)S
1081())S
2756(Version)S
3100(2.3)S
4866(FLEX)S
5127(()S
5169(1)S
5227())S
960 V
1080(Another)S
1437(area)S
1633(where)S
1907(the)S
2057(user)S
2252(can)S
2419(increase)S
2777(a)S
2849(scanner's)S
3257(performance)S
3795((and)S
4002(one)S
4175(that's)S
4427(easier)S
4691(to)S
4797(implement))S
1080 V
1080(arises)S
1339(from)S
1564(the)S
1716(fact)S
1897(that)S
2077(the)S
(longer)257 2229 A
2515(the)S
2667(tokens)S
2958(matched,)S
3352(the)S
3503(faster)S
3756(the)S
3907(scanner)S
(will)157 4243 A
4428(run.)S
4640(This)S
4847(is)S
(because)319 4942 A
1200 V
1080(with)S
(long)178 1287 A
1493(tokens)S
1783(the)S
1934(processing)S
2392(of)S
2504(most)S
(input)206 2727 A
2962(characters)S
3401(takes)S
(place)213 3637 A
3879(in)S
3986(the)S
4138((short))S
4436(inner)S
4672(scanning)S
(loop,)203 5058 A
1320 V
1080(and)S
1253(does)S
1465(not)S
1620(often)S
1854(have)S
2071(to)S
2176(go)S
(through)312 2303 A
2642(the)S
(additional)402 2792 A
3221(work)S
3455(of)S
(setting)268 3566 A
3861(up)S
3988(the)S
4138(scanning)S
4522(environment)S
5057((e.g.,)S
1440 V
10 B
1080(yytext))S
10 R
1402(for)S
1545(the)S
1693(action.)S
(Recall)258 2014 A
2297(the)S
2445(scanner)S
2778(for)S
2921(C)S
3013(comments:)S
1680 V
1180(%x)S
1339(comment)S
1800 V
1180(%%)S
1920 V
1380(int)S
(line_num)379 1511 A
1915(=)S
1997(1;)S
2160 V
1180("/*")S
1565(BEGIN(comment);)S
2400 V
1180(<comment>[303*\n]*)S
2520 V
1180(<comment>"*"+[303*/\n]*)S
2640 V
1180(<comment>\n)S
(++line_num;)521 2071 A
2760 V
1180(<comment>"*"+"/")S
2167(BEGIN(INITIAL);)S
3000 V
1080(This)S
1284(could)S
1532(be)S
1652(sped)S
1861(up)S
1986(by)S
(writing)291 2111 A
2427(it)S
2508(as:)S
3240 V
1180(%x)S
1339(comment)S
3360 V
1180(%%)S
3480 V
1380(int)S
(line_num)379 1511 A
1915(=)S
1997(1;)S
3720 V
1180("/*")S
1565(BEGIN(comment);)S
3960 V
1180(<comment>[303*\n]*)S
4080 V
1180(<comment>[303*\n]*\n)S
(++line_num;)521 2176 A
4200 V
1180(<comment>"*"+[303*/\n]*)S
4320 V
1180(<comment>"*"+[303*/\n]*\n)S
(++line_num;)521 2268 A
4440 V
1180(<comment>"*"+"/")S
2167(BEGIN(INITIAL);)S
4680 V
1080(Now)S
1312(instead)S
1633(of)S
(each)185 1753 A
1974(newline)S
2329(requiring)S
2734(the)S
2893(processing)S
3359(of)S
3480(another)S
3819(action,)S
(recognizing)475 4127 A
4639(the)S
4799(newlines)S
5194(is)S
4800 V
1080("distributed")S
1624(over)S
1835(the)S
1990(other)S
2229(rules)S
2457(to)S
2567(keep)S
2789(the)S
2944(matched)S
3316(text)S
3498(as)S
(long)178 3613 A
3822(as)S
3937(possible.)S
4347(Note)S
4574(that)S
10 I
(adding)278 4756 A
10 R
5065(rules)S
4920 V
1080(does)S
10 I
1298(not)S
10 R
1461(slow)S
1686(down)S
1944(the)S
2102(scanner!)S
2504(The)S
2696(speed)S
2960(of)S
3079(the)S
3237(scanner)S
3580(is)S
3682(independent)S
4208(of)S
4327(the)S
4485(number)S
4827(of)S
4946(rules)S
5177(or)S
5040 V
((modulo)340 1080 A
1453(the)S
1609(considerations)S
2222(given)S
2477(at)S
2582(the)S
2737(beginning)S
3170(of)S
3286(this)S
3463(section))S
3814(how)S
4019(complicated)S
4543(the)S
4698(rules)S
4926(are)S
5082(with)S
5160 V
1080(regard)S
1363(to)S
1466(operators)S
1866(such)S
2075(as)S
2184('*')S
2327(and)S
2497('|'.)S
5328 V
1080(A)S
1178(256nal)S
1382(example)S
1748(in)S
1851(speeding)S
2233(up)S
2358(a)S
2428(scanner:)S
(suppose)323 2789 A
(you)150 3137 A
3313(want)S
3535(to)S
3639(scan)S
(through)312 3844 A
4182(a)S
4253(256le)S
4408(containing)S
4858(identi256ers)S
5448 V
1080(and)S
1252(keywords,)S
1695(one)S
1866(per)S
2021(line)S
2198(and)S
2369(with)S
2574(no)S
2700(other)S
2933(extraneous)S
3395(characters,)S
3856(and)S
(recognize)392 4027 A
4445(all)S
4572(the)S
4721(keywords.)S
5188(A)S
5568 V
1080(natural)S
1385(256rst)S
1567(approach)S
1961(is:)S
5808 V
1180(%%)S
5928 V
1180(asm)S
1492(|)S
6048 V
1180(auto)S
1478(|)S
6168 V
1180(break)S
1504(|)S
6288 V
(...)75 1180 A
1280(etc)S
(...)75 1423 A
6408 V
(volatile)302 1180 A
1507(|)S
6528 V
1180(while)S
1504(/*)S
1607(it's)S
1761(a)S
1831(keyword)S
2208(*/)S
6768 V
1180(.|\n)S
1428(/*)S
1531(it's)S
1685(not)S
1838(a)S
1908(keyword)S
2285(*/)S
7008 V
1080(To)S
1217(eliminate)S
1617(the)S
1765(back-tracking,)S
(introduce)380 2369 A
2774(a)S
2844(catch-all)S
3217(rule:)S
7248 V
1180(%%)S
7368 V
1180(asm)S
1492(|)S
7488 V
1180(auto)S
1478(|)S
7903 V
720(September)S
1176(13,)S
(1996)200 1326 A
2681(()S
2723(26)S
2848(May)S
(1990)200 3057 A
3265())S
4940(Page)S
5161(20)S
8143 V
EP
%%Page: 21 21
BP
/slant 0 def
/height 0 def
480 V
10 R
720(FLEX)S
981(()S
1023(1)S
1081())S
2756(Version)S
3100(2.3)S
4866(FLEX)S
5127(()S
5169(1)S
5227())S
960 V
1180(break)S
1504(|)S
1080 V
(...)75 1180 A
1280(etc)S
(...)75 1423 A
1200 V
(volatile)302 1180 A
1507(|)S
1320 V
1180(while)S
1504(/*)S
1607(it's)S
1761(a)S
1831(keyword)S
2208(*/)S
1560 V
1180([a-z]+)S
1504(|)S
1680 V
1180(.|\n)S
1428(/*)S
1531(it's)S
1685(not)S
1838(a)S
1908(keyword)S
2285(*/)S
1920 V
1080(Now,)S
1332(if)S
1425(it's)S
1585(guaranteed)S
2058(that)S
2240(there's)S
2546(exactly)S
2868(one)S
3044(word)S
3282(per)S
3442(line,)S
3649(then)S
3853(we)S
4002(can)S
4173(reduce)S
4473(the)S
4627(total)S
4838(number)S
5177(of)S
2040 V
1080(matches)S
1435(by)S
1560(a)S
1630(half)S
1812(by)S
1937(merging)S
2297(in)S
2400(the)S
(recognition)458 2548 A
3031(of)S
3140(newlines)S
3523(with)S
3727(that)S
3903(of)S
4012(the)S
4160(other)S
4392(tokens:)S
2280 V
1180(%%)S
2400 V
1180(asm\n)S
1520(|)S
2520 V
1180(auto\n)S
1506(|)S
2640 V
1180(break\n)S
1532(|)S
2760 V
(...)75 1180 A
1280(etc)S
(...)75 1423 A
2880 V
(volatile\n)380 1180 A
1585(|)S
3000 V
1180(while\n)S
1532(/*)S
1635(it's)S
1789(a)S
1859(keyword)S
2236(*/)S
3240 V
1180([a-z]+\n)S
1532(|)S
3360 V
1180(.|\n)S
1428(/*)S
1531(it's)S
1685(not)S
1838(a)S
1908(keyword)S
2285(*/)S
3600 V
1080(One)S
1279(has)S
1444(to)S
1553(be)S
1679(careful)S
1991(here,)S
2221(as)S
2336(we)S
2485(have)S
2706(now)S
(reintroduced)509 2910 A
3450(backtracking)S
4001(into)S
4188(the)S
4343(scanner.)S
4733(In)S
4849(particular,)S
3720 V
1080(while)S
10 I
1330(we)S
10 R
(know)223 1468 A
1717(that)S
1894(there)S
(will)157 2122 A
2305(never)S
2555(be)S
2676(any)S
2847(characters)S
3283(in)S
3387(the)S
(input)206 3536 A
3768(stream)S
4063(other)S
4296(than)S
4495(letters)S
4768(or)S
4878(newlines,)S
3840 V
10 I
1080(257ex)S
10 R
1246(can't)S
1475(256gure)S
1737(this)S
1909(out,)S
2089(and)S
2261(it)S
(will)157 2344 A
2528(plan)S
2728(for)S
2873(possibly)S
3234(needing)S
3579(backtracking)S
4126(when)S
4371(it)S
4454(has)S
4615(scanned)S
4966(a)S
5038(token)S
3960 V
1080(like)S
1272("auto")S
1568(and)S
1754(then)S
1968(the)S
2132(next)S
2346(character)S
2758(is)S
2866(something)S
3324(other)S
3571(than)S
3784(a)S
3869(newline)S
4228(or)S
4352(a)S
4437(letter.)S
4735(Previously)S
5205(it)S
4080 V
1080(would)S
1361(then)S
1564(just)S
1739(match)S
2015(the)S
2168("auto")S
2453(rule)S
2640(and)S
2815(be)S
(done,)220 2940 A
3190(but)S
3348(now)S
3551(it)S
3637(has)S
3801(no)S
3931("auto")S
4217(rule,)S
4430(only)S
4639(a)S
4715("auto\n")S
5079(rule.)S
4200 V
1080(To)S
1224(eliminate)S
1631(the)S
(possibility)418 1786 A
2236(of)S
2352(backtracking,)S
2929(we)S
3078(could)S
3332(either)S
(duplicate)369 3593 A
3993(all)S
4125(rules)S
4352(but)S
(without)307 4511 A
4849(256nal)S
5059(new-)S
4320 V
1080(lines,)S
1326(or,)S
1467(since)S
1706(we)S
1856(never)S
2112(expect)S
2407(to)S
(encounter)397 2517 A
2946(such)S
3162(an)S
(input)206 3289 A
3527(and)S
3704(therefore)S
(don't)212 4101 A
4345(how)S
4550(it's)S
4711(classi256ed,)S
5143(we)S
4440 V
1080(can)S
(introduce)380 1245 A
1650(one)S
1820(more)S
2052(catch-all)S
2425(rule,)S
2632(this)S
2802(one)S
2972(which)S
3243(doesn't)S
3564(include)S
3885(a)S
3955(newline:)S
4680 V
1180(%%)S
4800 V
1180(asm\n)S
1520(|)S
4920 V
1180(auto\n)S
1506(|)S
5040 V
1180(break\n)S
1532(|)S
5160 V
(...)75 1180 A
1280(etc)S
(...)75 1423 A
5280 V
(volatile\n)380 1180 A
1585(|)S
5400 V
1180(while\n)S
1532(/*)S
1635(it's)S
1789(a)S
1859(keyword)S
2236(*/)S
5640 V
1180([a-z]+\n)S
1532(|)S
5760 V
1180([a-z]+)S
1504(|)S
5880 V
1180(.|\n)S
1428(/*)S
1531(it's)S
1685(not)S
1838(a)S
1908(keyword)S
2285(*/)S
6120 V
1080(Compiled)S
1501(with)S
10 B
1705(-Cf,)S
10 R
1896(this)S
2066(is)S
(about)223 2158 A
2406(as)S
2515(fast)S
2686(as)S
2795(one)S
2965(can)S
3130(get)S
3278(a)S
10 I
3348(257ex)S
10 R
3513(scanner)S
3846(to)S
3949(go)S
4074(for)S
4217(this)S
4387(particular)S
4799(problem.)S
6288 V
1080(A)S
1186(256nal)S
1398(note:)S
10 I
1632(257ex)S
10 R
1805(is)S
1906(slow)S
2130(when)S
2382(matching)S
2790(NUL's,)S
3130(particularly)S
3629(when)S
3881(a)S
3960(token)S
4217(contains)S
(multiple)335 4586 A
4955(NUL's.)S
6408 V
1080(It's)S
1255(best)S
1457(to)S
1575(write)S
1823(rules)S
2059(which)S
2344(match)S
10 I
2629(short)S
10 R
(amounts)340 2874 A
3253(of)S
3376(text)S
3566(if)S
3667(it's)S
3835(anticipated)S
4316(that)S
4506(the)S
4668(text)S
(will)157 4858 A
5054(often)S
6528 V
1080(include)S
1401(NUL's.)S
6696 V
9 R
720(I)S
722(IN)S
755(NC)S
823(CO)S
885(OM)S
953(MP)S
1035(PA)S
1087(AT)S
1155(TI)S
1213(IB)S
1246(BI)S
1308(IL)S
1341(LI)S
1399(IT)S
1432(TI)S
1490(IE)S
1523(ES)S
1581(S)S
1671(W)S
1673(WI)S
1761(IT)S
1794(TH)S
1852(H)S
1958(L)S
1960(LE)S
2018(EX)S
2076(X)S
2182(A)S
2184(AN)S
2252(ND)S
2320(D)S
2426(P)S
2428(PO)S
2480(OS)S
2548(SI)S
2600(IX)S
2633(X)S
6816 V
10 I
1080(257ex)S
10 R
1256(is)S
1360(a)S
1442(rewrite)S
1766(of)S
1887(the)S
2047(Unix)S
10 I
2285(lex)S
10 R
2440(tool)S
2633((the)S
2827(two)S
3015(implementations)S
3722(do)S
3859(not)S
4024(share)S
4274(any)S
4456(code,)S
(though),)337 4708 A
5082(with)S
6936 V
1080(some)S
1341(extensions)S
1814(and)S
(incompatibilities,)701 2008 A
2758(both)S
2985(of)S
3117(which)S
3411(are)S
3583(of)S
3715(concern)S
4082(to)S
4208(those)S
4468(who)S
4689(wish)S
4927(to)S
5053(write)S
7056 V
1080(scanners)S
(acceptable)426 1452 A
1903(to)S
2006(either)S
2261(implementation.)S
2967(At)S
3093(present,)S
3434(the)S
3582(POSIX)S
10 I
3899(lex)S
10 R
4042(draft)S
4258(is)S
4350(very)S
4554(close)S
4786(to)S
4889(the)S
5037(origi-)S
7176 V
1080(nal)S
10 I
1239(lex)S
10 R
1393(implementation,)S
2085(so)S
2210(some)S
2458(of)S
2578(these)S
(incompatibilities)676 2821 A
3533(are)S
3693(also)S
3891(in)S
4005(con257ict)S
4343(with)S
4558(the)S
4717(POSIX)S
5045(draft.)S
7296 V
1080(But)S
1251(the)S
1400(intent)S
1655(is)S
1748(that)S
1925(except)S
2214(as)S
2324(noted)S
2573(below,)S
10 I
2870(257ex)S
10 R
3036(as)S
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3230(presently)S
3626(stands)S
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(ultimately)408 4088 A
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7416 V
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10 I
4421(257ex's)S
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4670(favor).)S
5003(Please)S
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4791(standard)S
5177(of)S
7903 V
720(Page)S
941(21)S
2681(()S
2723(26)S
2848(May)S
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3265())S
4455(September)S
4911(13,)S
(1996)200 5061 A
8143 V
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1368 V
10 I
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10 I
2228(lex)S
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3469(yylineno)S
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2857(user)S
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5138(the)S
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1080(-)S
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10 R
1968(routine)S
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4170(an)S
4319(end-of-256le)S
4799(the)S
4976(normal)S
3120 V
10 B
1440(yywrap())S
10 R
1857(processing)S
2312(is)S
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2674(A)S
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3085(end-of-256le)S
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4437(as)S
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4546(EOF.)S
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3224(YY_INPUT)S
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1622(flex)S
10 R
1793(restriction)S
2227(that)S
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10 R
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3139(redefined)S
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4219(with)S
4424(the)S
4573(POSIX)S
4891(draft,)S
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3576 V
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1440(YY_INPUT)S
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2160(not)S
2326(yet)S
2487(been)S
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3690((and)S
3907(probably)S
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2630(any)S
2805(way)S
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2400(yyin).)S
3984 V
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1080(-)S
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1440(257ex)S
10 R
1611(scanners)S
1989(do)S
2120(not)S
2279(use)S
2444(stdio)S
2671(for)S
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4495(interactive)S
4953(scanner)S
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2049(lex)S
10 R
2201(such)S
2420(writes)S
2702(are)S
2861(automatically)S
3444(257ushed)S
3769(since)S
10 I
4011(lex)S
10 R
4164(scanners)S
4546(use)S
10 B
4715(getchar())S
10 R
5143(for)S
4344 V
1440(their)S
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2171(when)S
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2730(interactive)S
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3553(with)S
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3757(257ex,)S
10 R
3947(the)S
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4095(-I)S
10 R
4193(257ag)S
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4709(used.)S
4512 V
1080(-)S
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1440(257ex)S
10 R
1621(scanners)S
2009(are)S
2174(not)S
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2468(reentrant)S
2868(as)S
10 I
2993(lex)S
10 R
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3590(In)S
3716(particular,)S
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4466(have)S
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4835(interactive)S
4632 V
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1778(and)S
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2077(interrupt)S
2453(handler)S
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2031(scanner,)S
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2571(use)S
5472 V
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2155();)S
5760 V
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1833(is)S
1939(not)S
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3306(ECHO)S
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3641(macro)S
3932(is)S
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4392(the)S
4555(256le-pointer)S
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5043(yyout)S
5880 V
10 R
1440((default)S
10 I
(stdout).)304 1779 A
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2173(mentions)S
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3265(routine)S
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3841(but)S
4000(currently)S
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4640(no)S
4772(details)S
5067(as)S
5183(to)S
6168 V
1440(what)S
1661(it)S
1742(does.)S
6336 V
1080(-)S
10 I
1440(lex)S
10 R
1596(does)S
1818(not)S
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2323(exclusive)S
2741(start)S
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3409((%x),)S
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3990(they)S
4202(are)S
4365(in)S
4482(the)S
4644(current)S
4969(POSIX)S
6456 V
1440(draft.)S
6624 V
1080(-)S
1440(When)S
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2154(are)S
2303(expanded,)S
10 I
2738(257ex)S
10 R
2903(encloses)S
3269(them)S
3495(in)S
3598(parentheses.)S
4143(With)S
4369(lex,)S
4542(the)S
4690(following:)S
6864 V
1540(NAME)S
1937([A-Z][A-Z0-9]*)S
6984 V
1540(%%)S
7104 V
1540(foo{NAME}?)S
2262(printf()S
("Found)297 2545 A
(it\n")175 2867 A
3067();)S
7224 V
1540(%%)S
7464 V
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1629(not)S
1789(match)S
2067(the)S
2222(string)S
2483("foo")S
(because)319 2731 A
3082(when)S
3332(the)S
3487(macro)S
3771(is)S
3870(expanded)S
4287(the)S
4442(rule)S
4631(is)S
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7903 V
720(September)S
1176(13,)S
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2681(()S
2723(26)S
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3265())S
4940(Page)S
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8143 V
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1440("foo[A-Z][A-Z0-9]*?")S
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1677(257ex,)S
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1440(257ex)S
10 R
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1939(draft)S
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3304(flex's.)S
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4640(lex)S
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4786(one)S
4959(can)S
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2040(257ex)S
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2205(one)S
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3965(lex,)S
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4133(too.)S
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1630(lex)S
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1959((generate)S
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2521(own)S
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3886(include)S
4216(a)S
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2543(1).)S
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1440(flex)S
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2333(that)S
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2509(yywrap())S
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2424(yytext)S
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2865(yyleng)S
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10 I
2236(lex)S
10 R
2379(or)S
2488(the)S
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3269(draft.)S
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1080(-)S
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2243(the)S
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2402({})S
10 R
2518((numeric)S
2918(range))S
3212(operator)S
3585(is)S
3689(different.)S
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4124(lex)S
10 R
4279(interprets)S
4697("abc{1,3}")S
5177(as)S
3216 V
1440("match)S
1759(one,)S
1961(two,)S
2169(or)S
2285(three)S
2519(occurrences)S
3033(of)S
3149('abc'",)S
3455(whereas)S
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3818(257ex)S
10 R
3989(interprets)S
4401(it)S
4488(as)S
4603("match)S
4921('ab')S
5115(fol-)S
3336 V
1440(lowed)S
1720(by)S
1854(one,)S
2058(two,)S
2268(or)S
2386(three)S
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4817(the)S
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1440(POSIX)S
1757(draft.)S
3624 V
1080(-)S
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2213(the)S
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2362(303)S
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3301(lex)S
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3445(interprets)S
3852("303foo|bar")S
4277(as)S
4388("match)S
4702(either)S
4959('foo')S
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2022(of)S
2135(a)S
2209(line,)S
2414(or)S
2527('bar')S
2753(anywhere",)S
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3600(257ex)S
10 R
3769(interprets)S
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10 R
2741(to)S
2864(generate)S
3251(scanners)S
3643(in)S
3766(which)S
4057(the)S
4225(state)S
4455(machine)S
4841(is)S
4953(directly)S
1488 V
1080(represented)S
1581(in)S
1695(C)S
1798(code)S
2024(rather)S
2296(than)S
2505(tables.)S
2826(These)S
3103(scanners)S
3486(may)S
3695(well)S
3905(be)S
4036(substantially)S
4580(faster)S
4841(than)S
5049(those)S
1608 V
1080(generated)S
1499(using)S
1743(-f)S
1838(or)S
1949(-F.)S
2116(If)S
(you)150 2211 A
2388(are)S
2539(working)S
2901(in)S
3006(this)S
3179(area)S
3376(and)S
3549(are)S
3701(interested)S
4121(in)S
4227(comparing)S
4685(notes)S
4925(and)S
5098(see-)S
1728 V
1080(ing)S
1233(whether)S
(redundant)402 1583 A
2010(work)S
2242(can)S
2407(be)S
2527(avoided,)S
2895(contact)S
3211(Ove)S
3404(Ewerlid)S
3749((ewerlid@mizar.DoCS.UU.SE).)S
1896 V
1080(This)S
1289(work)S
1526(was)S
1713(primarily)S
(done)195 2118 A
2343(when)S
2591(I)S
2655(was)S
2842(at)S
2945(the)S
3098(Real)S
3313(Time)S
3556(Systems)S
(Group)257 3921 A
4209(at)S
4313(the)S
4467(Lawrence)S
4897(Berkeley)S
2016 V
1080(Laboratory)S
1553(in)S
1656(Berkeley,)S
2070(CA.)S
2285(Many)S
2544(thanks)S
2831(to)S
2934(all)S
3060(there)S
3287(for)S
3430(the)S
(support)301 3578 A
3904(I)S
(received.)367 3963 A
2184 V
1080(Send)S
1306(comments)S
1744(to:)S
2424 V
1205(Vern)S
1432(Paxson)S
2544 V
1205(Computer)S
1632(Science)S
1971(Department)S
2664 V
(4126)200 1205 A
1430(Upson)S
1717(Hall)S
2784 V
1205(Cornell)S
1532(University)S
2904 V
(Ithaca,)272 1205 A
1502(NY)S
(14853-7501)484 1673 A
3144 V
1205(vern@cs.cornell.edu)S
3264 V
1205(decvax!cornell!vern)S
7903 V
720(Page)S
941(25)S
2681(()S
2723(26)S
2848(May)S
(1990)200 3057 A
3265())S
4455(September)S
4911(13,)S
(1996)200 5061 A
8143 V
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