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FLEX.1：源码内容
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0 1 255 {Encoding-1 exch /.notdef put} for
Encoding-1 8#301 StandardEncoding 8#101 26 getinterval putinterval %A-B
Encoding-1 8#341 StandardEncoding 8#141 26 getinterval putinterval %a-b
Encoding-1 8#241 StandardEncoding 8#301 16 getinterval putinterval %accents
Encoding-1 8#373 StandardEncoding 8#365 1 getinterval putinterval %dotlessi
Encoding-1
dup 8#41 /copyright put
dup 8#42 /registered put
dup 8#43 /trademark put
dup 8#44 /logicalnot put
dup 8#45 /Eth put
dup 8#46 /eth put
dup 8#47 /Thorn put
dup 8#50 /thorn put
dup 8#51 /brokenbar put
dup 8#52 /degree put
dup 8#53 /divide put
dup 8#54 /multiply put
dup 8#55 /minus put
dup 8#56 /onehalf put
dup 8#57 /onequarter put
dup 8#60 /threequarters put
dup 8#101 /Aacute put
dup 8#102 /Acircumflex put
dup 8#103 /Adieresis put
dup 8#104 /Agrave put
dup 8#105 /Aring put
dup 8#106 /Atilde put
dup 8#107 /Ccedilla put
dup 8#110 /Eacute put
dup 8#111 /Ecircumflex put
dup 8#112 /Edieresis put
dup 8#113 /Egrave put
dup 8#114 /Iacute put
dup 8#115 /Icircumflex put
dup 8#116 /Idieresis put
dup 8#117 /Igrave put
dup 8#120 /Ntilde put
dup 8#121 /Oacute put
dup 8#122 /Ocircumflex put
dup 8#123 /Odieresis put
dup 8#124 /Ograve put
dup 8#125 /Otilde put
dup 8#126 /Scaron put
dup 8#127 /Uacute put
dup 8#130 /Ucircumflex put
dup 8#131 /Udieresis put
dup 8#132 /Ugrave put
dup 8#133 /Ydieresis put
dup 8#134 /Zcaron put
dup 8#135 /aacute put
dup 8#136 /acircumflex put
dup 8#137 /adieresis put
dup 8#140 /agrave put
dup 8#141 /aring put
dup 8#142 /atilde put
dup 8#143 /ccedilla put
dup 8#144 /eacute put
dup 8#145 /ecircumflex put
dup 8#146 /edieresis put
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dup 8#151 /icircumflex put
dup 8#152 /idieresis put
dup 8#153 /igrave put
dup 8#154 /ntilde put
dup 8#155 /oacute put
dup 8#156 /ocircumflex put
dup 8#157 /odieresis put
dup 8#160 /ograve put
dup 8#161 /otilde put
dup 8#162 /scaron put
dup 8#163 /uacute put
dup 8#164 /ucircumflex put
dup 8#165 /udieresis put
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dup 8#167 /ydieresis put
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Enc-dict begin
tmpstr2 cvs /Enc-no exch def % Remember the number in a string
dup /OrigName exch def % remember the name
findfont dup maxlength dict /newdict exch def % get dictionary for new font
{ exch dup /FID ne
   { exch newdict 3 1 roll put }
   { pop pop } % Ignore FID
   ifelse
} forall
newdict begin
/Encoding
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  cvn load
  def % Replace encoding
currentdict /UniqueID known
{ /UniqueID UniqueID Enc-no cvi 49999 mul add def } if % Derive New UniqueID
end % newdict
/FNlength OrigName tmpstr1 cvs length def % convert name, remember length
FNlength 1 add Enc-no length add string
dup 0 OrigName tmpstr1 cvs putinterval
dup FNlength (-) putinterval
dup FNlength 1 add Enc-no putinterval
dup 0 tmpstr1 0 FNlength getinterval putinterval % Add old name
cvn dup newdict /FontName 3 2 roll put newdict definefont
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%%EndProlog
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2333(yytext)S
10 R
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4498(folded).)S
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10 B
1080(-n)S
10 R
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1532(another)S
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10 B
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10 R
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6744 V
10 B
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10 I
(stdout))279 4138 A
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10 B
1080(-t)S
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10 I
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10 R
1971(to)S
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2002(257ex)S
10 R
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7320 V
1440(erates.)S
7903 V
720(Page)S
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2681(()S
2723(26)S
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(1990)200 3057 A
3265())S
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4911(13,)S
(1996)200 5061 A
8143 V
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480 V
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10 B
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2006(that)S
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2352(full)S
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10 I
4069(flex)S
10 R
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4560 V
10 B
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10 R
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10 B
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3265())S
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3108('o',)S
3024 V
1505(or)S
1614(a)S
1684('Z')S
3144 V
1180([303A-Z])S
1576(a)S
1646("negated)S
2025(character)S
2421(class",)S
2708(i.e.,)S
2881(any)S
3051(character)S
3264 V
1505(but)S
1658(those)S
1895(in)S
1998(the)S
2146(class.)S
2417(In)S
2526(this)S
2696(case,)S
2920(any)S
3384 V
1505(character)S
1901(EXCEPT)S
2308(an)S
(uppercase)403 2428 A
2856(letter.)S
3504 V
1180([303A-Z\n])S
1604(any)S
1774(character)S
2170(EXCEPT)S
2577(an)S
(uppercase)403 2697 A
3125(letter)S
3358(or)S
3624 V
1505(a)S
1575(newline)S
3744 V
1180(r*)S
1489(zero)S
1688(or)S
1797(more)S
2029(r's,)S
2186(where)S
2458(r)S
2517(is)S
2609(any)S
2779(regular)S
3090(expression)S
3864 V
1180(r+)S
1496(one)S
1666(or)S
1775(more)S
2007(r's)S
3984 V
1180(r?)S
1484(zero)S
1683(or)S
1792(one)S
1962(r's)S
2094((that)S
2304(is,)S
2421("an)S
2582(optional)S
2936(r"))S
4104 V
1180(r{2,5})S
1560(anywhere)S
1977(from)S
2198(two)S
2374(to)S
2477(256ve)S
2653(r's)S
4224 V
1180(r{2,})S
1535(two)S
1711(or)S
1820(more)S
2052(r's)S
4344 V
1180(r{4})S
1535(exactly)S
1851(4)S
1926(r's)S
4464 V
1180({name})S
1619(the)S
1767(expansion)S
2199(of)S
2308(the)S
2456("name")S
(de256nition)385 2781 A
4584 V
1455((see)S
(above))274 1643 A
4704 V
1180("[xyz]\"foo")S
4824 V
1455(the)S
(literal)236 1603 A
1864(string:)S
2146([xyz]"foo)S
4944 V
1180(\X)S
1506(if)S
1593(X)S
1691(is)S
1783(an)S
1903('a',)S
2066('b',)S
('f',)127 2234 A
2386('n',)S
('r',)127 2554 A
2706('t',)S
2852(or)S
2961('v',)S
5064 V
1505(then)S
1703(the)S
1851(ANSI-C)S
2213(interpretation)S
2781(of)S
2890(\x.)S
5184 V
1505(Otherwise,)S
1970(a)S
(literal)236 2040 A
2301('X')S
2467((used)S
2710(to)S
2813(escape)S
5304 V
1505(operators)S
1905(such)S
2114(as)S
2223('*'))S
5424 V
(\123)178 1180 A
1533(the)S
1681(character)S
2077(with)S
2281(octal)S
2502(value)S
(123)150 2745 A
5544 V
1180(\x2a)S
1528(the)S
1676(character)S
2072(with)S
2276(hexadecimal)S
2810(value)S
3053(2a)S
5664 V
((r))102 1180 A
1482(match)S
1753(an)S
1873(r;)S
1960(parentheses)S
2455(are)S
2604(used)S
2813(to)S
2916(override)S
5784 V
(precedence)454 1505 A
1984((see)S
2172(below))S
6144 V
1180(rs)S
1478(the)S
1626(regular)S
1937(expression)S
2392(r)S
2451(followed)S
2834(by)S
2959(the)S
6264 V
1505(regular)S
1816(expression)S
2271(s;)S
2363(called)S
2629("concatenation")S
6624 V
1180(r|s)S
1473(either)S
1728(an)S
1848(r)S
1907(or)S
2016(an)S
2136(s)S
6984 V
1180(r/s)S
1481(an)S
1601(r)S
1660(but)S
1813(only)S
2016(if)S
2103(it)S
2184(is)S
2276(followed)S
2659(by)S
2784(an)S
2904(s.)S
3018(The)S
7104 V
1505(s)S
1569(is)S
1661(not)S
1814(part)S
1996(of)S
2105(the)S
2253(matched)S
2619(text.)S
2845(This)S
3049(type)S
7224 V
1505(of)S
1614(pattern)S
1919(is)S
2011(called)S
2277(as)S
("trailing)332 2386 A
2743(context".)S
7344 V
1180(303r)S
1473(an)S
1593(r,)S
1677(but)S
1830(only)S
2033(at)S
2131(the)S
2279(beginning)S
2705(of)S
2814(a)S
2884(line)S
7464 V
1180(r$)S
1489(an)S
1609(r,)S
1693(but)S
1846(only)S
2049(at)S
2147(the)S
2295(end)S
2465(of)S
2574(a)S
2644(line.)S
2870(Equivalent)S
7903 V
720(Page)S
941(3)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
%%Page: 4 4
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
1505(to)S
1608("r/\n".)S
1320 V
1180(<s>r)S
1542(an)S
1662(r,)S
1746(but)S
1899(only)S
2102(in)S
2205(start)S
(condition)379 2404 A
2808(s)S
2872((see)S
1440 V
1455(below)S
1726(for)S
1869(discussion)S
2312(of)S
2421(start)S
(conditions))452 2620 A
1560 V
1180(<s1,s2,s3>r)S
1680 V
1455(same,)S
1712(but)S
1865(in)S
1968(any)S
2138(of)S
2247(start)S
(conditions)418 2446 A
2889(s1,)S
1800 V
1455(s2,)S
1594(or)S
1703(s3)S
2160 V
1180(<<EOF>>)S
1699(an)S
1819(end-of-256le)S
2280 V
(<s1,s2><<EOF>>)736 1180 A
2400 V
1455(an)S
1575(end-of-256le)S
2026(when)S
2269(in)S
2372(start)S
(condition)379 2571 A
2975(s1)S
3089(or)S
3198(s2)S
2640 V
1080(The)S
1267(regular)S
1583(expressions)S
2082(listed)S
(above)240 2330 A
2600(are)S
(grouped)329 2754 A
(according)397 3113 A
3540(to)S
(precedence,)479 3648 A
4157(from)S
4383(highest)S
(precedence)454 4703 A
5188(at)S
2760 V
1080(the)S
1228(top)S
1381(to)S
1484(lowest)S
1772(at)S
1870(the)S
2018(bottom.)S
2377(Those)S
(grouped)329 2648 A
3002(together)S
3357(have)S
3572(equal)S
(precedence.)479 3815 A
2928 V
1080(Some)S
1334(notes)S
1571(on)S
1696(patterns:)S
3096 V
1080(-)S
1440(Negated)S
1813(character)S
2221(classes)S
10 I
2539(match)S
2823(newlines)S
10 R
3213(unless)S
3502("\n")S
3700((or)S
3856(an)S
3989(equivalent)S
4446(escape)S
4753(sequence))S
5194(is)S
3216 V
1440(one)S
1610(of)S
1719(the)S
1867(characters)S
(explicitly)380 2302 A
2707(present)S
3023(in)S
3126(the)S
3274(negated)S
3612(character)S
4008(class)S
4229((e.g.,)S
4458("[303A-Z\n]").)S
3384 V
1080(-)S
1440(A)S
1544(rule)S
1732(can)S
1903(have)S
2124(at)S
2228(most)S
2454(one)S
2631(instance)S
2993(of)S
(trailing)291 3109 A
3432(context)S
3760((the)S
3949('/')S
4077(operator)S
4445(or)S
4561(the)S
4716('$')S
4866(operator).)S
3504 V
1440(The)S
1626(start)S
(condition,)404 1828 A
('303',)127 2260 A
2415(and)S
2588("<<EOF>>")S
3117(patterns)S
3464(can)S
3632(only)S
3838(occur)S
4090(at)S
4191(the)S
4342(beginning)S
4771(of)S
4883(a)S
4956(pattern,)S
3624 V
1440(and,)S
1642(as)S
1758(well)S
1964(as)S
2080(with)S
2291('/')S
2419(and)S
2596('$',)S
(cannot)268 2772 A
3073(be)S
(grouped)329 3201 A
3563(inside)S
3836(parentheses.)S
4389(The)S
4579(following)S
5003(are)S
5160(all)S
3744 V
(illegal:)280 1440 A
3984 V
1540(foo/bar$)S
4104 V
1540(foo|(bar$))S
4224 V
1540(foo|303bar)S
4344 V
1540(<sc1>foo<sc2>bar)S
4632 V
9 R
720(S)S
722(SU)S
774(UM)S
842(MM)S
924(MA)S
1006(AR)S
1074(RY)S
1136(Y)S
1242(O)S
1244(OF)S
1312(F)S
1402(S)S
1404(SP)S
1456(PE)S
1508(EC)S
1566(CI)S
1628(IA)S
1661(AL)S
1729(L)S
1825(A)S
1827(AC)S
1895(CT)S
1957(TI)S
2015(IO)S
2048(ON)S
2116(NS)S
2184(S)S
4752 V
10 R
1080(In)S
(addition)329 1189 A
1543(to)S
1646(arbitrary)S
2019(C)S
2111(code,)S
2351(the)S
2499(following)S
2915(can)S
3080(appear)S
3374(in)S
3477(actions:)S
4920 V
1080(-)S
10 B
1440(ECHO)S
10 R
1761(copies)S
2043(yytext)S
2319(to)S
2422(the)S
2570(scanner's)S
2976(output.)S
5088 V
1080(-)S
10 B
1440(BEGIN)S
10 R
1789(followed)S
2172(by)S
2297(the)S
2445(name)S
2688(of)S
2797(a)S
2867(start)S
(condition)379 3067 A
(places)252 3472 A
3750(the)S
3899(scanner)S
4233(in)S
4337(the)S
(corresponding)575 4486 A
5087(start)S
5208 V
(condition.)404 1440 A
5376 V
1080(-)S
10 B
1440(REJECT)S
10 R
1865(directs)S
2162(the)S
2313(scanner)S
2649(to)S
(proceed)319 2755 A
3103(on)S
3232(to)S
3339(the)S
("second)320 3491 A
3840(best")S
4072(rule)S
4258(which)S
4533(matched)S
4903(the)S
(input)206 5055 A
5496 V
1440((or)S
1586(a)S
1658(pre256x)S
1920(of)S
2031(the)S
(input).)265 2181 A
10 B
2498(yytext)S
10 R
2788(and)S
10 B
2960(yyleng)S
10 R
3266(are)S
3417(set)S
3556(up)S
3683(appropriately.)S
4297(Note)S
4520(that)S
10 B
4698(REJECT)S
10 R
5122(is)S
5216(a)S
5616 V
1440(particularly)S
1956(expensive)S
2409(feature)S
2742(in)S
2872(terms)S
3148(scanner)S
3508(performance;)S
4098(if)S
4212(it)S
4320(is)S
4439(used)S
4675(in)S
10 I
4805(any)S
10 R
5002(of)S
5138(the)S
5736 V
1440(scanner's)S
1862(actions)S
2188(it)S
(will)157 2285 A
2483(slow)S
2714(down)S
10 I
2977(all)S
10 R
3123(of)S
3247(the)S
3410(scanner's)S
3831(matching.)S
4295(Furthermore,)S
10 B
4864(REJECT)S
5856 V
10 R
(cannot)268 1440 A
1733(be)S
1853(used)S
2062(with)S
2266(the)S
10 I
2414(-f)S
10 R
2501(or)S
10 I
2610(-F)S
10 R
2731(options.)S
6024 V
1440(Note)S
1669(also)S
1865(that)S
2050(unlike)S
2335(the)S
2492(other)S
2733(special)S
3047(actions,)S
10 B
3391(REJECT)S
10 R
3822(is)S
3923(a)S
10 I
4002(branch;)S
10 R
4354(code)S
4578(immediately)S
5115(fol-)S
6144 V
1440(lowing)S
1744(it)S
1825(in)S
1928(the)S
2076(action)S
(will)157 2347 A
10 I
2529(not)S
10 R
2682(be)S
2802(executed.)S
6312 V
1080(-)S
10 B
1440(yymore())S
10 R
1858(tells)S
2052(the)S
2202(scanner)S
2537(that)S
2715(the)S
2865(next)S
3065(time)S
3271(it)S
3354(matches)S
3711(a)S
3783(rule,)S
3992(the)S
(corresponding)575 4142 A
4744(token)S
(should)267 4994 A
6432 V
1440(be)S
10 I
(appended)390 1560 A
10 R
1975(onto)S
2178(the)S
2326(current)S
2637(value)S
2880(of)S
10 B
2989(yytext)S
10 R
3277(rather)S
3538(than)S
3736(replacing)S
4136(it.)S
6600 V
1080(-)S
10 B
1440(yyless(n))S
10 R
1851(returns)S
2167(all)S
2305(but)S
2470(the)S
2630(256rst)S
10 I
2824(n)S
10 R
2911(characters)S
3358(of)S
3479(the)S
3639(current)S
3962(token)S
4222(back)S
4449(to)S
4564(the)S
(input)206 4724 A
4967(stream,)S
6720 V
1440(where)S
1720(they)S
(will)157 1926 A
2116(be)S
2243(rescanned)S
2678(when)S
2928(the)S
3083(scanner)S
(looks)217 3423 A
3672(for)S
3822(the)S
3977(next)S
4182(match.)S
10 B
4510(yytext)S
10 R
4805(and)S
10 B
4982(yyleng)S
6840 V
10 R
1440(are)S
1589(adjusted)S
1949(appropriately)S
2511((e.g.,)S
10 B
2740(yyleng)S
10 R
(will)157 3044 A
3226(now)S
3424(be)S
3544(equal)S
3787(to)S
10 I
3890(n)S
10 R
3965().)S
7008 V
1080(-)S
10 B
(unput(c))371 1440 A
10 R
1860(puts)S
2076(the)S
2248(character)S
10 I
2669(c)S
10 R
2764(back)S
3004(onto)S
3232(the)S
(input)206 3405 A
3661(stream.)S
4030(It)S
(will)157 4142 A
4349(be)S
4494(the)S
4667(next)S
4890(character)S
7128 V
1440(scanned.)S
7296 V
1080(-)S
10 B
(input())298 1440 A
10 R
1770(reads)S
2016(the)S
2172(next)S
2378(character)S
2782(from)S
3011(the)S
(input)206 3167 A
3406(stream)S
3708((this)S
3920(routine)S
4238(is)S
4338(called)S
10 B
(yyinput())398 4612 A
10 R
5043(if)S
5138(the)S
7416 V
1440(scanner)S
1773(is)S
1865(compiled)S
2264(using)S
10 B
2506(C++).)S
7903 V
10 R
720(September)S
1176(13,)S
(1996)200 1326 A
2681(()S
2723(26)S
2848(May)S
(1990)200 3057 A
3265())S
4990(Page)S
5211(4)S
8143 V
EP
%%Page: 5 5
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
1080(-)S
10 B
1440(yyterminate())S
10 R
2056(can)S
2223(be)S
2346(used)S
2558(in)S
2664(lieu)S
2843(of)S
2955(a)S
3028(return)S
3297(statement)S
3711(in)S
3817(an)S
3940(action.)S
4264(It)S
4354(terminates)S
4802(the)S
4953(scanner)S
1080 V
1440(and)S
1610(returns)S
1915(a)S
1985(0)S
2060(to)S
2163(the)S
2311(scanner's)S
2717(caller,)S
2992(indicating)S
3419("all)S
(done".)261 3586 A
1248 V
1440(By)S
1584(default,)S
10 B
1916(yyterminate())S
10 R
2532(is)S
2626(also)S
2815(called)S
3084(when)S
3330(an)S
(end-of-file)432 3453 A
3913(is)S
(encountered.)517 4008 A
4578(It)S
4668(is)S
4763(a)S
4836(macro)S
5116(and)S
1368 V
1440(may)S
1638(be)S
1758(redefined.)S
1536 V
1080(-)S
10 B
1440(YY_NEW_FILE)S
10 R
2186(is)S
2278(an)S
2398(action)S
2669(available)S
3058(only)S
3261(in)S
3365(<<EOF>>)S
3810(rules.)S
4082(It)S
4170(means)S
4453("Okay,)S
4763(I've)S
4952(set)S
5090(up)S
5216(a)S
1656 V
1440(new)S
(input)206 1633 A
1864(256le,)S
2043(continue)S
2414(scanning".)S
1824 V
1080(-)S
10 B
(yy_create_buffer()768 1440 A
2270(256le,)S
2486(size)S
2705())S
10 R
2801(takes)S
3070(a)S
10 I
3177(FILE)S
10 R
3453(pointer)S
3800(and)S
4008(an)S
4166(integer)S
10 I
4509(size.)S
10 R
4748(It)S
4873(returns)S
5216(a)S
1944 V
1440(YY_BUFFER_STATE)S
2413(handle)S
2712(to)S
2820(a)S
2895(new)S
(input)206 3093 A
3329(buffer)S
3606(large)S
(enough)295 3838 A
4163(to)S
(accomodate)481 4271 A
10 I
4782(size)S
10 R
4963(charac-)S
2064 V
1440(ters)S
1611(and)S
1781(associated)S
2220(with)S
2424(the)S
2572(given)S
2820(256le.)S
3024(When)S
3289(in)S
(doubt,)253 3392 A
3670(use)S
10 B
3829(YY_BUF_SIZE)S
10 R
4531(for)S
4674(the)S
4822(size.)S
2232 V
1080(-)S
10 B
(yy_switch_to_buffer()913 1440 A
2399(new_buffer)S
2939())S
10 R
3019(switches)S
3412(the)S
3581(scanner's)S
4008(processing)S
4484(to)S
4608(scan)S
4834(for)S
4999(tokens)S
2352 V
1440(from)S
1661(the)S
1809(given)S
2057(buffer,)S
2354(which)S
2625(must)S
2845(be)S
2965(a)S
3035(YY_BUFFER_STATE.)S
2520 V
1080(-)S
10 B
(yy_delete_buffer()757 1440 A
2222(buffer)S
2517())S
10 R
2576(deletes)S
2881(the)S
3029(given)S
3277(buffer.)S
2688 V
9 R
720(V)S
722(VA)S
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10 R
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3384 V
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10 I
2251(257ex)S
10 R
2417(buffers)S
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3504 V
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5616 V
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5736 V
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1540(#de256ne)S
1861(YY_INPUT(buf,result,max_size))S
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5976 V
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4728(first)S
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10 R
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10 R
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2490(awk(1).)S
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891(GN)S
959(NO)S
1027(OS)S
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1205(IC)S
1238(CS)S
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3432 V
10 I
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3600 V
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4770(257ex)S
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3819("257ex.skel").)S
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5138(the)S
5592 V
1080(scanner,)S
1438(use:)S
5832 V
1180(yyrestart()S
1592(yyin)S
1795();)S
6120 V
10 I
1080(too)S
1238(many)S
1486(%t)S
1628(classes!)S
1977(-)S
10 R
2041(You)S
2244(managed)S
2637(to)S
2745(put)S
2903(every)S
3157(single)S
3427(character)S
3828(into)S
4015(its)S
4141(own)S
4345(%t)S
4488(class.)S
10 I
4765(257ex)S
10 R
4936(requires)S
6240 V
1080(that)S
1256(at)S
1354(least)S
1564(one)S
1734(of)S
1843(the)S
1991(classes)S
2296(share)S
2534(characters.)S
6408 V
9 R
720(A)S
722(AU)S
790(UT)S
858(TH)S
916(HO)S
984(OR)S
1052(R)S
6528 V
10 R
1080(Vern)S
1312(Paxson,)S
1657(with)S
1867(the)S
2021(help)S
2225(of)S
2340(many)S
2594(ideas)S
2832(and)S
3008(much)S
3262(inspiration)S
3723(from)S
3950(Van)S
4149(Jacobson.)S
4598(Original)S
4965(version)S
6648 V
1080(by)S
1205(Jef)S
1348(Poskanzer.)S
6816 V
1080(See)S
(257exdoc(1))414 1251 A
1690(for)S
(additional)402 1833 A
2260(credits)S
2554(and)S
2724(the)S
2872(address)S
3199(to)S
3302(send)S
3511(comments)S
3949(to.)S
6984 V
9 R
720(D)S
722(DE)S
790(EF)S
848(FI)S
900(IC)S
933(CI)S
995(IE)S
1028(EN)S
1086(NC)S
1154(CI)S
1216(IE)S
1249(ES)S
1307(S)S
1397(/)S
1399(/)S
1464(B)S
1466(BU)S
1528(UG)S
1596(GS)S
1664(S)S
7104 V
10 R
1080(Some)S
(trailing)291 1382 A
1746(context)S
2115(patterns)S
(cannot)268 2507 A
2848(be)S
3016(properly)S
3430(matched)S
3844(and)S
4062(generate)S
4477(warning)S
4881(messages)S
7224 V
1080(("Dangerous)S
(trailing)291 1617 A
1934(context").)S
2381(These)S
2648(are)S
2798(patterns)S
3143(where)S
3416(the)S
3565(ending)S
3864(of)S
3974(the)S
4123(256rst)S
4306(part)S
4489(of)S
4599(the)S
4748(rule)S
4931(matches)S
7344 V
1080(the)S
1230(beginning)S
1658(of)S
1769(the)S
(second)279 1920 A
2227(part,)S
2437(such)S
2649(as)S
("zx*/xy*",)430 2761 A
3219(where)S
3494(the)S
3645('x*')S
3841(matches)S
4199(the)S
4350('x')S
4496(at)S
4597(the)S
4748(beginning)S
5177(of)S
7464 V
1080(the)S
(trailing)291 1252 A
1592(context.)S
1987((Note)S
2266(that)S
2466(the)S
2638(POSIX)S
2978(draft)S
3217(states)S
3489(that)S
3688(the)S
3859(text)S
4058(matched)S
4447(by)S
4595(such)S
4827(patterns)S
5194(is)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
4990(Page)S
5211(6)S
8143 V
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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
(unde256ned.))455 1080 A
1128 V
1080(For)S
1250(some)S
(trailing)291 1492 A
1813(context)S
2139(rules,)S
2391(parts)S
2618(which)S
2895(are)S
3050(actually)S
3400(256xed-length)S
3917(are)S
4072(not)S
(recognized)442 4231 A
4704(as)S
4819(such,)S
5059(lead-)S
1248 V
1080(ing)S
1235(to)S
1340(the)S
(abovementioned)664 1490 A
2181(performance)S
2718(loss.)S
2951(In)S
3062(particular,)S
3500(parts)S
3722(using)S
3965('|')S
4079(or)S
4189({n})S
4361((such)S
4605(as)S
4715("foo{3}"))S
5137(are)S
1368 V
1080(always)S
1385(considered)S
1846(variable-length.)S
1536 V
1080(Combining)S
(trailing)291 1566 A
1892(context)S
2223(with)S
2437(the)S
2595(special)S
2910('|')S
3033(action)S
3314(can)S
3489(result)S
3748(in)S
10 I
3861(256xed)S
10 R
(trailing)291 4086 A
4413(context)S
4745(being)S
5004(turned)S
1656 V
1080(into)S
1261(the)S
1409(more)S
1641(expensive)S
10 I
2068(variable)S
10 R
(trailing)291 2428 A
2744(context.)S
3115(For)S
3280(example,)S
3671(this)S
3841(happens)S
4195(in)S
4298(the)S
4446(following)S
4862(example:)S
1896 V
1180(%%)S
2016 V
1180(abc)S
1470(|)S
2136 V
1180(xyz/def)S
2424 V
1080(Use)S
1262(of)S
(unput())296 1371 A
1692(invalidates)S
2153(yytext)S
2429(and)S
2599(yyleng.)S
2592 V
1080(Use)S
1265(of)S
(unput())296 1377 A
1701(to)S
1807(push)S
2024(back)S
2242(more)S
2477(text)S
2657(than)S
2859(was)S
3045(matched)S
3415(can)S
3584(result)S
3837(in)S
3944(the)S
4096(pushed-back)S
4633(text)S
4813(matching)S
5216(a)S
2712 V
1080(beginning-of-line)S
(('303'))170 1809 A
2004(rule)S
2186(even)S
(though)278 2401 A
2704(it)S
2785(didn't)S
3050(come)S
3293(at)S
3391(the)S
3539(beginning)S
3965(of)S
4074(the)S
4222(line)S
((though)312 4398 A
4735(this)S
4905(is)S
4997(rare!).)S
2880 V
1080(Pattern-matching)S
1799(of)S
1908(NUL's)S
2214(is)S
2306(substantially)S
2839(slower)S
3133(than)S
3331(matching)S
3730(other)S
3962(characters.)S
3048 V
10 I
1080(257ex)S
10 R
1256(does)S
1476(not)S
1640(generate)S
2018(correct)S
2335(#line)S
2572(directives)S
3000(for)S
3154(code)S
3380(internal)S
3724(to)S
3838(the)S
3997(scanner;)S
4369(thus,)S
(bugs)189 4598 A
4824(in)S
10 I
4939(257ex.skel)S
3168 V
10 R
1080(yield)S
(bogus)239 1306 A
1570(line)S
1746(numbers.)S
3336 V
1080(Due)S
1274(to)S
1379(both)S
1584(buffering)S
1986(of)S
(input)206 2097 A
2330(and)S
2502(read-ahead,)S
(you)150 2997 A
(cannot)268 3174 A
3469(intermix)S
3837(calls)S
4049(to)S
4154(<stdio.h>)S
4565(routines,)S
4941(such)S
5152(as,)S
3456 V
1080(for)S
1223(example,)S
10 B
1614(getchar(),)S
10 R
2057(with)S
10 I
2261(257ex)S
10 R
2426(rules)S
2647(and)S
2817(expect)S
3105(it)S
3186(to)S
3289(work.)S
3571(Call)S
10 B
(input())298 3764 A
10 R
4087(instead.)S
3624 V
1080(The)S
1272(total)S
1486(table)S
1717(entries)S
2021(listed)S
2274(by)S
2410(the)S
10 B
2569(-v)S
10 R
2689(257ag)S
2876(excludes)S
3264(the)S
3423(number)S
3766(of)S
3886(table)S
4118(entries)S
4423(needed)S
4744(to)S
4858(determine)S
3744 V
1080(what)S
1303(rule)S
1487(has)S
1648(been)S
1865(matched.)S
2283(The)S
2467(number)S
2800(of)S
2910(entries)S
3205(is)S
3298(equal)S
3542(to)S
3646(the)S
3795(number)S
4128(of)S
4238(DFA)S
4466(states)S
4716(if)S
4804(the)S
4953(scanner)S
3864 V
1080(does)S
1289(not)S
1442(use)S
10 B
1601(REJECT,)S
10 R
2048(and)S
2218(somewhat)S
2651(greater)S
2957(than)S
3155(the)S
3303(number)S
3635(of)S
3744(states)S
3993(if)S
4080(it)S
4161(does.)S
4032 V
10 B
1080(REJECT)S
10 R
(cannot)268 1502 A
1795(be)S
1915(used)S
2124(with)S
2328(the)S
10 I
2476(-f)S
10 R
2563(or)S
10 I
2672(-F)S
10 R
2793(options.)S
4200 V
1080(Some)S
1351(of)S
1477(the)S
1642(macros,)S
2000(such)S
2226(as)S
10 B
2353(yywrap(),)S
10 R
2813(may)S
3029(in)S
3150(the)S
3316(future)S
3600(become)S
3956(functions)S
4373(which)S
4662(live)S
4856(in)S
4977(the)S
10 B
5143(-l257)S
4320 V
10 R
1080(library.)S
1424(This)S
(will)157 1628 A
(doubtless)379 1810 A
2214(break)S
2463(a)S
2533(lot)S
2664(of)S
2773(code,)S
3013(but)S
3166(may)S
3364(be)S
3484(required)S
3845(for)S
3988(POSIX-compliance.)S
4488 V
1080(The)S
10 I
1262(257ex)S
10 R
1427(internal)S
1760(algorithms)S
2215(need)S
2430(documentation.)S
7903 V
720(Page)S
941(7)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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