external/bsd/flex/dist/doc/flex.info

   1 This is flex.info, produced by makeinfo version 4.13 from flex.texi.
   2
   3 INFO-DIR-SECTION Programming
   4 START-INFO-DIR-ENTRY
   5 * flex: (flex).      Fast lexical analyzer generator (lex replacement).
   6 END-INFO-DIR-ENTRY
   7
   8    The flex manual is placed under the same licensing conditions as the
   9 rest of flex:
  10
  11    Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012 The
  12 Flex Project.
  13
  14    Copyright (C) 1990, 1997 The Regents of the University of California.
  15 All rights reserved.
  16
  17    This code is derived from software contributed to Berkeley by Vern
  18 Paxson.
  19
  20    The United States Government has rights in this work pursuant to
  21 contract no. DE-AC03-76SF00098 between the United States Department of
  22 Energy and the University of California.
  23
  24    Redistribution and use in source and binary forms, with or without
  25 modification, are permitted provided that the following conditions are
  26 met:
  27
  28   1.  Redistributions of source code must retain the above copyright
  29      notice, this list of conditions and the following disclaimer.
  30
  31   2. Redistributions in binary form must reproduce the above copyright
  32      notice, this list of conditions and the following disclaimer in the
  33      documentation and/or other materials provided with the
  34      distribution.
  35
  36    Neither the name of the University nor the names of its contributors
  37 may be used to endorse or promote products derived from this software
  38 without specific prior written permission.
  39
  40    THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
  41 WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  42 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  43
  44 \x1f
  45 Indirect:
  46 flex.info-1: 1627
  47 flex.info-2: 288420
  48 \x1f
  49 Tag Table:
  50 (Indirect)
  51 Node: Top\x7f1627
  52 Node: Copyright\x7f7695
  53 Node: Reporting Bugs\x7f9214
  54 Node: Introduction\x7f9519
  55 Node: Simple Examples\x7f10347
  56 Node: Format\x7f13634
  57 Node: Definitions Section\x7f14047
  58 Ref: Definitions Section-Footnote-1\x7f16305
  59 Node: Rules Section\x7f16373
  60 Node: User Code Section\x7f17530
  61 Node: Comments in the Input\x7f17968
  62 Node: Patterns\x7f19335
  63 Ref: case and character ranges\x7f26159
  64 Node: Matching\x7f30170
  65 Node: Actions\x7f33454
  66 Node: Generated Scanner\x7f42423
  67 Node: Start Conditions\x7f47438
  68 Node: Multiple Input Buffers\x7f57975
  69 Ref: Scanning Strings\x7f64511
  70 Node: EOF\x7f66141
  71 Node: Misc Macros\x7f67727
  72 Node: User Values\x7f70579
  73 Node: Yacc\x7f72910
  74 Node: Scanner Options\x7f73805
  75 Node: Options for Specifying Filenames\x7f76561
  76 Ref: option-header\x7f76787
  77 Ref: option-outfile\x7f77499
  78 Ref: option-stdout\x7f77824
  79 Node: Options Affecting Scanner Behavior\x7f78806
  80 Ref: option-case-insensitive\x7f79047
  81 Ref: option-lex-compat\x7f79480
  82 Ref: option-batch\x7f80012
  83 Ref: option-interactive\x7f80536
  84 Ref: option-7bit\x7f81890
  85 Ref: option-8bit\x7f83194
  86 Ref: option-default\x7f83606
  87 Ref: option-always-interactive\x7f83670
  88 Ref: option-posix\x7f84274
  89 Ref: option-stack\x7f85421
  90 Ref: option-stdinit\x7f85529
  91 Ref: option-yylineno\x7f86007
  92 Ref: option-yywrap\x7f86450
  93 Node: Code-Level And API Options\x7f86718
  94 Ref: option-ansi-definitions\x7f86945
  95 Ref: option-ansi-prototypes\x7f87197
  96 Ref: option-bison-bridge\x7f87444
  97 Ref: option-bison-locations\x7f87783
  98 Ref: option-noline\x7f88043
  99 Ref: option-reentrant\x7f88557
 100 Ref: option-c++\x7f89168
 101 Ref: option-array\x7f89294
 102 Ref: option-pointer\x7f89392
 103 Ref: option-prefix\x7f89520
 104 Ref: option-main\x7f91048
 105 Ref: option-nounistd\x7f91232
 106 Ref: option-yyclass\x7f91740
 107 Node: Options for Scanner Speed and Size\x7f92226
 108 Ref: option-align\x7f92775
 109 Ref: option-ecs\x7f93276
 110 Ref: option-meta-ecs\x7f94312
 111 Ref: option-read\x7f94799
 112 Ref: option-full\x7f96681
 113 Ref: option-fast\x7f96876
 114 Node: Debugging Options\x7f97801
 115 Ref: option-backup\x7f97988
 116 Ref: option-debug\x7f98533
 117 Ref: option-perf-report\x7f99255
 118 Ref: option-nodefault\x7f99881
 119 Ref: option-trace\x7f100199
 120 Ref: option-nowarn\x7f100490
 121 Ref: option-verbose\x7f100558
 122 Ref: option-warn\x7f100987
 123 Node: Miscellaneous Options\x7f101206
 124 Node: Performance\x7f101663
 125 Node: Cxx\x7f111905
 126 Node: Reentrant\x7f119507
 127 Node: Reentrant Uses\x7f120184
 128 Node: Reentrant Overview\x7f121745
 129 Node: Reentrant Example\x7f122544
 130 Node: Reentrant Detail\x7f123318
 131 Node: Specify Reentrant\x7f123751
 132 Node: Extra Reentrant Argument\x7f124398
 133 Node: Global Replacement\x7f125649
 134 Node: Init and Destroy Functions\x7f126877
 135 Node: Accessor Methods\x7f129394
 136 Node: Extra Data\x7f130736
 137 Node: About yyscan_t\x7f133001
 138 Node: Reentrant Functions\x7f133396
 139 Ref: bison-functions\x7f134878
 140 Node: Lex and Posix\x7f135617
 141 Node: Memory Management\x7f142988
 142 Ref: memory-management\x7f143134
 143 Node: The Default Memory Management\x7f143362
 144 Ref: The Default Memory Management-Footnote-1\x7f147168
 145 Node: Overriding The Default Memory Management\x7f147321
 146 Ref: Overriding The Default Memory Management-Footnote-1\x7f149718
 147 Node: A Note About yytext And Memory\x7f149882
 148 Node: Serialized Tables\x7f151115
 149 Ref: serialization\x7f151259
 150 Node: Creating Serialized Tables\x7f152024
 151 Node: Loading and Unloading Serialized Tables\x7f153632
 152 Node: Tables File Format\x7f155400
 153 Node: Diagnostics\x7f162414
 154 Node: Limitations\x7f165823
 155 Node: Bibliography\x7f167771
 156 Node: FAQ\x7f168444
 157 Node: When was flex born?\x7f172684
 158 Node: How do I expand backslash-escape sequences in C-style quoted strings?\x7f173061
 159 Node: Why do flex scanners call fileno if it is not ANSI compatible?\x7f174365
 160 Node: Does flex support recursive pattern definitions?\x7f175160
 161 Node: How do I skip huge chunks of input (tens of megabytes) while using flex?\x7f176006
 162 Node: Flex is not matching my patterns in the same order that I defined them.\x7f176473
 163 Node: My actions are executing out of order or sometimes not at all.\x7f178218
 164 Node: How can I have multiple input sources feed into the same scanner at the same time?\x7f178991
 165 Node: Can I build nested parsers that work with the same input file?\x7f180979
 166 Node: How can I match text only at the end of a file?\x7f181985
 167 Node: How can I make REJECT cascade across start condition boundaries?\x7f182789
 168 Node: Why cant I use fast or full tables with interactive mode?\x7f183803
 169 Node: How much faster is -F or -f than -C?\x7f185061
 170 Node: If I have a simple grammar cant I just parse it with flex?\x7f185373
 171 Node: Why doesn't yyrestart() set the start state back to INITIAL?\x7f185854
 172 Node: How can I match C-style comments?\x7f186481
 173 Node: The period isn't working the way I expected.\x7f187291
 174 Node: Can I get the flex manual in another format?\x7f188538
 175 Node: Does there exist a "faster" NDFA->DFA algorithm?\x7f189027
 176 Node: How does flex compile the DFA so quickly?\x7f189537
 177 Node: How can I use more than 8192 rules?\x7f190504
 178 Node: How do I abandon a file in the middle of a scan and switch to a new file?\x7f191914
 179 Node: How do I execute code only during initialization (only before the first scan)?\x7f192467
 180 Node: How do I execute code at termination?\x7f193244
 181 Node: Where else can I find help?\x7f193570
 182 Node: Can I include comments in the "rules" section of the file?\x7f193943
 183 Node: I get an error about undefined yywrap().\x7f194322
 184 Node: How can I change the matching pattern at run time?\x7f194798
 185 Node: How can I expand macros in the input?\x7f195160
 186 Node: How can I build a two-pass scanner?\x7f196192
 187 Node: How do I match any string not matched in the preceding rules?\x7f197108
 188 Node: I am trying to port code from AT&T lex that uses yysptr and yysbuf.\x7f198017
 189 Node: Is there a way to make flex treat NULL like a regular character?\x7f198812
 190 Node: Whenever flex can not match the input it says "flex scanner jammed".\x7f199333
 191 Node: Why doesn't flex have non-greedy operators like perl does?\x7f199976
 192 Node: Memory leak - 16386 bytes allocated by malloc.\x7f201329
 193 Ref: faq-memory-leak\x7f201627
 194 Node: How do I track the byte offset for lseek()?\x7f202594
 195 Node: How do I use my own I/O classes in a C++ scanner?\x7f204103
 196 Node: How do I skip as many chars as possible?\x7f204946
 197 Node: deleteme00\x7f206020
 198 Node: Are certain equivalent patterns faster than others?\x7f206460
 199 Node: Is backing up a big deal?\x7f209878
 200 Node: Can I fake multi-byte character support?\x7f211784
 201 Node: deleteme01\x7f213225
 202 Node: Can you discuss some flex internals?\x7f214334
 203 Node: unput() messes up yy_at_bol\x7f216578
 204 Node: The | operator is not doing what I want\x7f217680
 205 Node: Why can't flex understand this variable trailing context pattern?\x7f219226
 206 Node: The ^ operator isn't working\x7f220475
 207 Node: Trailing context is getting confused with trailing optional patterns\x7f221710
 208 Node: Is flex GNU or not?\x7f222953
 209 Node: ERASEME53\x7f224626
 210 Node: I need to scan if-then-else blocks and while loops\x7f225396
 211 Node: ERASEME55\x7f226595
 212 Node: ERASEME56\x7f227693
 213 Node: ERASEME57\x7f229051
 214 Node: Is there a repository for flex scanners?\x7f230049
 215 Node: How can I conditionally compile or preprocess my flex input file?\x7f230364
 216 Node: Where can I find grammars for lex and yacc?\x7f230837
 217 Node: I get an end-of-buffer message for each character scanned.\x7f231184
 218 Node: unnamed-faq-62\x7f231779
 219 Node: unnamed-faq-63\x7f232797
 220 Node: unnamed-faq-64\x7f234094
 221 Node: unnamed-faq-65\x7f235060
 222 Node: unnamed-faq-66\x7f235846
 223 Node: unnamed-faq-67\x7f236961
 224 Node: unnamed-faq-68\x7f237948
 225 Node: unnamed-faq-69\x7f239090
 226 Node: unnamed-faq-70\x7f239803
 227 Node: unnamed-faq-71\x7f240564
 228 Node: unnamed-faq-72\x7f241773
 229 Node: unnamed-faq-73\x7f242816
 230 Node: unnamed-faq-74\x7f243740
 231 Node: unnamed-faq-75\x7f244685
 232 Node: unnamed-faq-76\x7f245817
 233 Node: unnamed-faq-77\x7f246523
 234 Node: unnamed-faq-78\x7f247416
 235 Node: unnamed-faq-79\x7f248414
 236 Node: unnamed-faq-80\x7f250114
 237 Node: unnamed-faq-81\x7f251432
 238 Node: unnamed-faq-82\x7f254232
 239 Node: unnamed-faq-83\x7f255189
 240 Node: unnamed-faq-84\x7f256969
 241 Node: unnamed-faq-85\x7f258072
 242 Node: unnamed-faq-86\x7f259079
 243 Node: unnamed-faq-87\x7f260017
 244 Node: unnamed-faq-88\x7f260663
 245 Node: unnamed-faq-90\x7f261494
 246 Node: unnamed-faq-91\x7f262757
 247 Node: unnamed-faq-92\x7f265185
 248 Node: unnamed-faq-93\x7f265684
 249 Node: unnamed-faq-94\x7f266611
 250 Node: unnamed-faq-95\x7f268023
 251 Node: unnamed-faq-96\x7f269541
 252 Node: unnamed-faq-97\x7f270300
 253 Node: unnamed-faq-98\x7f270967
 254 Node: unnamed-faq-99\x7f271632
 255 Node: unnamed-faq-100\x7f272561
 256 Node: unnamed-faq-101\x7f273271
 257 Node: What is the difference between YYLEX_PARAM and YY_DECL?\x7f274084
 258 Node: Why do I get "conflicting types for yylex" error?\x7f274605
 259 Node: How do I access the values set in a Flex action from within a Bison action?\x7f275135
 260 Node: Appendices\x7f275566
 261 Node: Makefiles and Flex\x7f275775
 262 Ref: Makefiles and Flex-Footnote-1\x7f278971
 263 Ref: Makefiles and Flex-Footnote-2\x7f279088
 264 Ref: Makefiles and Flex-Footnote-3\x7f279274
 265 Node: Bison Bridge\x7f279325
 266 Ref: Bison Bridge-Footnote-1\x7f281990
 267 Node: M4 Dependency\x7f282182
 268 Ref: M4 Dependency-Footnote-1\x7f283587
 269 Node: Common Patterns\x7f283722
 270 Node: Numbers\x7f284013
 271 Node: Identifiers\x7f284990
 272 Node: Quoted Constructs\x7f285817
 273 Node: Addresses\x7f286869
 274 Node: Indices\x7f288182
 275 Node: Concept Index\x7f288420
 276 Node: Index of Functions and Macros\x7f313703
 277 Node: Index of Variables\x7f318599
 278 Node: Index of Data Types\x7f320265
 279 Node: Index of Hooks\x7f321153
 280 Node: Index of Scanner Options\x7f321721
 281 \x1f
 282 End Tag Table