This is flex.info, produced by makeinfo version 6.0 from flex.texi.

The flex manual is placed under the same licensing conditions as the

rest of flex:

   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012 The Flex

Project.

   Copyright (C) 1990, 1997 The Regents of the University of California.

All rights reserved.

   This code is derived from software contributed to Berkeley by Vern

Paxson.

   The United States Government has rights in this work pursuant to

contract no.  DE-AC03-76SF00098 between the United States Department of

Energy and the University of California.

   Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are

met:

  1. Redistributions of source code must retain the above copyright

     notice, this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright

     notice, this list of conditions and the following disclaimer in the

     documentation and/or other materials provided with the

     distribution.

   Neither the name of the University nor the names of its contributors

may be used to endorse or promote products derived from this software

without specific prior written permission.

   THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED

WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF

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INFO-DIR-SECTION Programming

START-INFO-DIR-ENTRY

* flex: (flex).      Fast lexical analyzer generator (lex replacement).

END-INFO-DIR-ENTRY

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flex.info-2: 319115

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Tag Table:

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Node: Top1622

Node: Copyright9420

Node: Reporting Bugs10939

Node: Introduction11195

Node: Simple Examples12024

Node: Format15312

Node: Definitions Section15767

Ref: Definitions Section-Footnote-118025

Node: Rules Section18093

Node: User Code Section19251

Node: Comments in the Input19689

Node: Patterns21059

Ref: case and character ranges27891

Node: Matching31894

Node: Actions35179

Node: Generated Scanner44141

Node: Start Conditions49160

Node: Multiple Input Buffers59702

Ref: Scanning Strings66243

Node: EOF67872

Node: Misc Macros69458

Node: User Values72312

Node: Yacc74637

Node: Scanner Options75532

Node: Options for Specifying Filenames78321

Ref: option-header78547

Ref: option-outfile79261

Ref: option-stdout79586

Node: Options Affecting Scanner Behavior80569

Ref: option-case-insensitive80810

Ref: option-lex-compat81243

Ref: option-batch81775

Ref: option-interactive82294

Ref: option-7bit83648

Ref: option-8bit84952

Ref: option-default85364

Ref: option-always-interactive85428

Ref: option-posix86032

Ref: option-stack87179

Ref: option-stdinit87287

Ref: option-yylineno87766

Ref: option-yywrap88209

Node: Code-Level And API Options88476

Ref: option-ansi-definitions88703

Ref: option-ansi-prototypes88951

Ref: option-bison-bridge89199

Ref: option-bison-locations89540

Ref: option-noline89800

Ref: option-reentrant90314

Ref: option-c++90926

Ref: option-array91052

Ref: option-pointer91150

Ref: option-prefix91277

Ref: option-main92805

Ref: option-nounistd92989

Ref: option-yyclass93500

Node: Options for Scanner Speed and Size93984

Ref: option-align94534

Ref: option-ecs95036

Ref: option-meta-ecs96075

Ref: option-read96563

Ref: option-full98446

Ref: option-fast98641

Node: Debugging Options99565

Ref: option-backup99752

Ref: option-debug100297

Ref: option-perf-report101019

Ref: option-nodefault101645

Ref: option-trace101963

Ref: option-nowarn102254

Ref: option-verbose102322

Ref: option-warn102751

Node: Miscellaneous Options102970

Node: Performance103426

Node: Cxx113673

Node: Reentrant121765

Node: Reentrant Uses122499

Node: Reentrant Overview124061

Node: Reentrant Example124861

Node: Reentrant Detail125634

Node: Specify Reentrant126138

Node: Extra Reentrant Argument126788

Node: Global Replacement128040

Node: Init and Destroy Functions129275

Node: Accessor Methods131796

Node: Extra Data133143

Node: About yyscan_t135410

Node: Reentrant Functions135807

Ref: bison-functions137291

Node: Lex and Posix138030

Node: Memory Management145377

Ref: memory-management145523

Node: The Default Memory Management145757

Ref: The Default Memory Management-Footnote-1149577

Node: Overriding The Default Memory Management149730

Ref: Overriding The Default Memory Management-Footnote-1152144

Node: A Note About yytext And Memory152308

Node: Serialized Tables153548

Ref: serialization153692

Node: Creating Serialized Tables154472

Node: Loading and Unloading Serialized Tables156087

Node: Tables File Format157860

Node: Diagnostics164885

Node: Limitations168294

Node: Bibliography170242

Node: FAQ170912

Node: When was flex born?176075

Node: How do I expand backslash-escape sequences in C-style quoted strings?176452

Node: Why do flex scanners call fileno if it is not ANSI compatible?177755

Node: Does flex support recursive pattern definitions?178552

Node: How do I skip huge chunks of input (tens of megabytes) while using flex?179399

Node: Flex is not matching my patterns in the same order that I defined them.179866

Node: My actions are executing out of order or sometimes not at all.181612

Node: How can I have multiple input sources feed into the same scanner at the same time?182385

Node: Can I build nested parsers that work with the same input file?184370

Node: How can I match text only at the end of a file?185377

Node: How can I make REJECT cascade across start condition boundaries?186181

Node: Why cant I use fast or full tables with interactive mode?187195

Node: How much faster is -F or -f than -C?188452

Node: If I have a simple grammar cant I just parse it with flex?188764

Node: Why doesn't yyrestart() set the start state back to INITIAL?189246

Node: How can I match C-style comments?189873

Node: The period isn't working the way I expected.190683

Node: Can I get the flex manual in another format?191928

Node: Does there exist a "faster" NDFA->DFA algorithm?192418

Node: How does flex compile the DFA so quickly?192928

Node: How can I use more than 8192 rules?193894

Node: How do I abandon a file in the middle of a scan and switch to a new file?195304

Node: How do I execute code only during initialization (only before the first scan)?195858

Node: How do I execute code at termination?196635

Node: Where else can I find help?196961

Node: Can I include comments in the "rules" section of the file?197335

Node: I get an error about undefined yywrap().197715

Node: How can I change the matching pattern at run time?198191

Node: How can I expand macros in the input?198553

Node: How can I build a two-pass scanner?199585

Node: How do I match any string not matched in the preceding rules?200503

Node: I am trying to port code from AT&T lex that uses yysptr and yysbuf.201412

Node: Is there a way to make flex treat NULL like a regular character?202207

Node: Whenever flex can not match the input it says "flex scanner jammed".202727

Node: Why doesn't flex have non-greedy operators like perl does?203370

Node: Memory leak - 16386 bytes allocated by malloc.204723

Ref: faq-memory-leak205021

Node: How do I track the byte offset for lseek()?205992

Node: How do I use my own I/O classes in a C++ scanner?207501

Node: How do I skip as many chars as possible?208344

Node: deleteme00209419

Node: Are certain equivalent patterns faster than others?209859

Node: Is backing up a big deal?213277

Node: Can I fake multi-byte character support?215183

Node: deleteme01216624

Node: Can you discuss some flex internals?217733

Node: unput() messes up yy_at_bol219977

Node: The | operator is not doing what I want221079

Node: Why can't flex understand this variable trailing context pattern?222625

Node: The ^ operator isn't working223874

Node: Trailing context is getting confused with trailing optional patterns225109

Node: Is flex GNU or not?226352

Node: ERASEME53228025

Node: I need to scan if-then-else blocks and while loops228795

Node: ERASEME55229994

Node: ERASEME56231092

Node: ERASEME57232450

Node: Is there a repository for flex scanners?233448

Node: How can I conditionally compile or preprocess my flex input file?233764

Node: Where can I find grammars for lex and yacc?234237

Node: I get an end-of-buffer message for each character scanned.234584

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Node: unnamed-faq-63236197

Node: unnamed-faq-64237494

Node: unnamed-faq-65238460

Node: unnamed-faq-66239246

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Node: unnamed-faq-84260369

Node: unnamed-faq-85261472

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Node: unnamed-faq-88264063

Node: unnamed-faq-90264894

Node: unnamed-faq-91266157

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Node: unnamed-faq-99275032

Node: unnamed-faq-100275961

Node: unnamed-faq-101276671

Node: What is the difference between YYLEX_PARAM and YY_DECL?277484

Node: Why do I get "conflicting types for yylex" error?278008

Node: How do I access the values set in a Flex action from within a Bison action?278538

Node: Appendices278967

Node: Makefiles and Flex279232

Ref: Makefiles and Flex-Footnote-1282434

Ref: Makefiles and Flex-Footnote-2282551

Ref: Makefiles and Flex-Footnote-3282738

Node: Bison Bridge282789

Ref: Bison Bridge-Footnote-1285456

Node: M4 Dependency285648

Ref: M4 Dependency-Footnote-1287062

Node: Common Patterns287198

Node: Numbers287521

Node: Identifiers288497

Node: Quoted Constructs289324

Node: Addresses290378

Node: Indices291690

Node: Concept Index291982

Node: Index of Functions and Macros319115

Node: Index of Variables324084

Node: Index of Data Types325750

Node: Index of Hooks326638

Node: Index of Scanner Options327206

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