📄 flex.1
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A2842(\(which)S3150(is)S3245(the)S3396(default\),)S3762(the)S3912(scanner)S(will)157 4247 A4431(write)S4666(to)S10 I4771(stderr)S10 R5038(a)S5110(line)S4584 V1440(of)S1549(the)S1697(form:)S4824 V(--accepting)454 1540 A2019(rule)S2201(at)S2299(line)S2475(53)S2600(\("the)S2823(matched)S3189(text"\))S5064 V1440(The)S1628(line)S1810(number)S2148(refers)S2410(to)S2519(the)S2673(location)S3028(of)S3143(the)S3297(rule)S3485(in)S3594(the)S3748(\256le)S3908(de\256ning)S4268(the)S4423(scanner)S4763(\(i.e.,)S4977(the)S5132(\256le)S5184 V1440(that)S1626(was)S1817(fed)S1980(to)S2092(\257ex\).)S2361(Messages)S2786(are)S2944(also)S3140(generated)S3566(when)S3818(the)S3975(scanner)S4317(backtracks,)S(accepts)297 4807 A5138(the)S5304 V1440(default)S1745(rule,)S(reaches)303 1952 A2280(the)S2428(end)S2598(of)S2707(its)S(input)206 2827 A3058(buffer)S3330(\(or)S(encounters)436 3473 A3934(a)S4004(NUL;)S4265(the)S4414(two)S(look)178 4591 A4795(the)S4944(same)S5177(as)S5424 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V1440(matched)S1806(text)S1982(given)S2230(in)S10 I2333(yytext)S10 R(will)157 2594 A2776(have)S2991(the)S3139(preserved)S3556(case)S3755(\(i.e.,)S3962(it)S(will)157 4043 A4225(not)S4378(be)S4498(folded\).)S6288 V10 B1080(-n)S10 R1440(is)S1532(another)S1859(do-nothing,)S(deprecated)437 2349 A2811(option)S3092(included)S3463(only)S3666(for)S3809(POSIX)S4126(compliance.)S6456 V10 B1080(-p)S10 R1440(generates)S1851(a)S1926(performance)S2466(report)S2737(to)S2845(stderr.)S3156(The)S3344(report)S3616(consists)S3965(of)S4080(comments)S4524(regarding)S4941(features)S6576 V1440(of)S1549(the)S10 I1697(\257ex)S10 R(input)206 1862 A2093(\256le)S2247(which)S(will)157 2518 A2700(cause)S2949(a)S3019(loss)S3200(of)S3309(performance)S3844(in)S3947(the)S(resulting)352 4095 A4472(scanner.)S6744 V10 B1080(-s)S10 R1440(causes)S1730(the)S10 I1880(default)S2186(rule)S10 R2375(\(that)S2587(unmatched)S3055(scanner)S(input)206 3390 A3624(is)S3719(echoed)S4032(to)S10 I(stdout\))279 4138 A10 R4445(to)S4551(be)S(suppressed.)466 4674 A5193(If)S6864 V1440(the)S1588(scanner)S(encounters)436 1921 A(input)206 2382 A2613(that)S2789(does)S2998(not)S3151(match)S3422(any)S3592(of)S3701(its)S3821(rules,)S4067(it)S4148(aborts)S4419(with)S4623(an)S4743(error.)S7032 V10 B1080(-t)S10 R1440(instructs)S10 I1806(\257ex)S10 R1971(to)S2074(write)S2307(the)S2455(scanner)S2788(it)S2869(generates)S3275(to)S3378(standard)S3744(output)S4025(instead)S4335(of)S10 B4444(lex.yy.c.)S7200 V1080(-v)S10 R1440(speci\256es)S1819(that)S10 I2002(\257ex)S10 R(should)267 2174 A2473(write)S2713(to)S10 I2823(stderr)S10 R3095(a)S3173(summary)S3580(of)S3697(statistics)S4077(regarding)S4496(the)S4652(scanner)S4993(it)S5082(gen-)S7320 V1440(erates.)S7903 V720(Page)S941(1)S2681(\()S2723(26)S2848(May)S(1990)200 3057 A3265(\))S4455(September)S4911(13,)S(1996)200 5061 A8143 VEP%%Page: 2 2BP/slant 0 def/height 0 def480 V10 R720(FLEX)S981(\()S1023(1)S1081(\))S2756(Version)S3100(2.3)S4866(FLEX)S5127(\()S5169(1)S5227(\))S960 V10 B1080(-F)S10 R1440(speci\256es)S1813(that)S1990(the)S10 I2139(fast)S10 R2310(scanner)S2644(table)S2866(representation)S(should)267 3463 A3757(be)S3879(used.)S4140(This)S4346(representation)S4944(is)S(about)223 5038 A1080 V1440(as)S1556(fast)S1734(as)S1849(the)S2003(full)S2174(table)S2401(representation)S3003(\()S10 B-13037(-)S10 B3094(f)S10 R3128(\),)S3218(and)S3394(for)S3543(some)S3786(sets)S3968(of)S4083(patterns)S(will)157 4433 A4621(be)S4747(considerably)S1200 V1440(smaller)S1762(\(and)S1966(for)S2109(others,)S2405(larger\).)S2750(See)S10 B2921(\257exdoc\(1\))S10 R3366(for)S3509(details.)S1368 V1440(This)S1644(option)S1925(is)S2017(equivalent)S2461(to)S10 B2564(-CF)S10 R2758(\(see)S2946(below\).)S1536 V10 B1080(-I)S⌨️ 快捷键说明
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