doc/flex.info

   1 This is flex.info, produced by makeinfo version 6.1 from flex.texi.
   2
   3 The flex manual is placed under the same licensing conditions as the
   4 rest of flex:
   5
   6    Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012 The Flex
   7 Project.
   8
   9    Copyright (C) 1990, 1997 The Regents of the University of California.
  10 All rights reserved.
  11
  12    This code is derived from software contributed to Berkeley by Vern
  13 Paxson.
  14
  15    The United States Government has rights in this work pursuant to
  16 contract no.  DE-AC03-76SF00098 between the United States Department of
  17 Energy and the University of California.
  18
  19    Redistribution and use in source and binary forms, with or without
  20 modification, are permitted provided that the following conditions are
  21 met:
  22
  23   1. Redistributions of source code must retain the above copyright
  24      notice, this list of conditions and the following disclaimer.
  25
  26   2. Redistributions in binary form must reproduce the above copyright
  27      notice, this list of conditions and the following disclaimer in the
  28      documentation and/or other materials provided with the
  29      distribution.
  30
  31    Neither the name of the University nor the names of its contributors
  32 may be used to endorse or promote products derived from this software
  33 without specific prior written permission.
  34
  35    THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
  36 WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  37 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  38 INFO-DIR-SECTION Programming
  39 START-INFO-DIR-ENTRY
  40 * flex: (flex).      Fast lexical analyzer generator (lex replacement).
  41 END-INFO-DIR-ENTRY
  42
  43 \1f
  44 Indirect:
  45 flex.info-1: 1622
  46 flex.info-2: 318745
  47 \1f
  48 Tag Table:
  49 (Indirect)
  50 Node: Top\7f1622
  51 Node: Copyright\7f9414
  52 Node: Reporting Bugs\7f10933
  53 Node: Introduction\7f11189
  54 Node: Simple Examples\7f12018
  55 Node: Format\7f15304
  56 Node: Definitions Section\7f15759
  57 Ref: Definitions Section-Footnote-1\7f18017
  58 Node: Rules Section\7f18085
  59 Node: User Code Section\7f19243
  60 Node: Comments in the Input\7f19681
  61 Node: Patterns\7f21051
  62 Ref: case and character ranges\7f27883
  63 Node: Matching\7f31886
  64 Node: Actions\7f35171
  65 Node: Generated Scanner\7f44133
  66 Node: Start Conditions\7f49136
  67 Node: Multiple Input Buffers\7f59678
  68 Ref: Scanning Strings\7f66221
  69 Node: EOF\7f67850
  70 Node: Misc Macros\7f69436
  71 Node: User Values\7f72290
  72 Node: Yacc\7f74615
  73 Node: Scanner Options\7f75510
  74 Node: Options for Specifying Filenames\7f78299
  75 Ref: option-header\7f78525
  76 Ref: option-outfile\7f79239
  77 Ref: option-stdout\7f79564
  78 Node: Options Affecting Scanner Behavior\7f80547
  79 Ref: option-case-insensitive\7f80788
  80 Ref: option-lex-compat\7f81221
  81 Ref: option-batch\7f81753
  82 Ref: option-interactive\7f82272
  83 Ref: option-7bit\7f83626
  84 Ref: option-8bit\7f84930
  85 Ref: option-default\7f85342
  86 Ref: option-always-interactive\7f85406
  87 Ref: option-posix\7f86010
  88 Ref: option-stack\7f87157
  89 Ref: option-stdinit\7f87265
  90 Ref: option-yylineno\7f87744
  91 Ref: option-yywrap\7f88187
  92 Node: Code-Level And API Options\7f88454
  93 Ref: option-ansi-definitions\7f88681
  94 Ref: option-ansi-prototypes\7f88756
  95 Ref: option-bison-bridge\7f88829
  96 Ref: option-bison-locations\7f89170
  97 Ref: option-noline\7f89430
  98 Ref: option-reentrant\7f89944
  99 Ref: option-c++\7f90556
 100 Ref: option-array\7f90682
 101 Ref: option-pointer\7f90780
 102 Ref: option-prefix\7f90907
 103 Ref: option-main\7f92435
 104 Ref: option-nounistd\7f92619
 105 Ref: option-yyclass\7f93130
 106 Node: Options for Scanner Speed and Size\7f93614
 107 Ref: option-align\7f94164
 108 Ref: option-ecs\7f94666
 109 Ref: option-meta-ecs\7f95705
 110 Ref: option-read\7f96193
 111 Ref: option-full\7f98076
 112 Ref: option-fast\7f98271
 113 Node: Debugging Options\7f99195
 114 Ref: option-backup\7f99382
 115 Ref: option-debug\7f99927
 116 Ref: option-perf-report\7f100649
 117 Ref: option-nodefault\7f101275
 118 Ref: option-trace\7f101593
 119 Ref: option-nowarn\7f101884
 120 Ref: option-verbose\7f101952
 121 Ref: option-warn\7f102381
 122 Node: Miscellaneous Options\7f102600
 123 Node: Performance\7f103056
 124 Node: Cxx\7f113303
 125 Node: Reentrant\7f121395
 126 Node: Reentrant Uses\7f122129
 127 Node: Reentrant Overview\7f123691
 128 Node: Reentrant Example\7f124491
 129 Node: Reentrant Detail\7f125264
 130 Node: Specify Reentrant\7f125768
 131 Node: Extra Reentrant Argument\7f126418
 132 Node: Global Replacement\7f127670
 133 Node: Init and Destroy Functions\7f128905
 134 Node: Accessor Methods\7f131426
 135 Node: Extra Data\7f132773
 136 Node: About yyscan_t\7f135040
 137 Node: Reentrant Functions\7f135437
 138 Ref: bison-functions\7f136921
 139 Node: Lex and Posix\7f137660
 140 Node: Memory Management\7f145007
 141 Ref: memory-management\7f145153
 142 Node: The Default Memory Management\7f145387
 143 Ref: The Default Memory Management-Footnote-1\7f149207
 144 Node: Overriding The Default Memory Management\7f149360
 145 Ref: Overriding The Default Memory Management-Footnote-1\7f151774
 146 Node: A Note About yytext And Memory\7f151938
 147 Node: Serialized Tables\7f153178
 148 Ref: serialization\7f153322
 149 Node: Creating Serialized Tables\7f154102
 150 Node: Loading and Unloading Serialized Tables\7f155717
 151 Node: Tables File Format\7f157490
 152 Node: Diagnostics\7f164515
 153 Node: Limitations\7f167924
 154 Node: Bibliography\7f169872
 155 Node: FAQ\7f170542
 156 Node: When was flex born?\7f175705
 157 Node: How do I expand backslash-escape sequences in C-style quoted strings?\7f176082
 158 Node: Why do flex scanners call fileno if it is not ANSI compatible?\7f177385
 159 Node: Does flex support recursive pattern definitions?\7f178182
 160 Node: How do I skip huge chunks of input (tens of megabytes) while using flex?\7f179029
 161 Node: Flex is not matching my patterns in the same order that I defined them.\7f179496
 162 Node: My actions are executing out of order or sometimes not at all.\7f181242
 163 Node: How can I have multiple input sources feed into the same scanner at the same time?\7f182015
 164 Node: Can I build nested parsers that work with the same input file?\7f184000
 165 Node: How can I match text only at the end of a file?\7f185007
 166 Node: How can I make REJECT cascade across start condition boundaries?\7f185811
 167 Node: Why cant I use fast or full tables with interactive mode?\7f186825
 168 Node: How much faster is -F or -f than -C?\7f188082
 169 Node: If I have a simple grammar cant I just parse it with flex?\7f188394
 170 Node: Why doesn't yyrestart() set the start state back to INITIAL?\7f188876
 171 Node: How can I match C-style comments?\7f189503
 172 Node: The period isn't working the way I expected.\7f190313
 173 Node: Can I get the flex manual in another format?\7f191558
 174 Node: Does there exist a "faster" NDFA->DFA algorithm?\7f192048
 175 Node: How does flex compile the DFA so quickly?\7f192558
 176 Node: How can I use more than 8192 rules?\7f193524
 177 Node: How do I abandon a file in the middle of a scan and switch to a new file?\7f194934
 178 Node: How do I execute code only during initialization (only before the first scan)?\7f195488
 179 Node: How do I execute code at termination?\7f196265
 180 Node: Where else can I find help?\7f196591
 181 Node: Can I include comments in the "rules" section of the file?\7f196965
 182 Node: I get an error about undefined yywrap().\7f197345
 183 Node: How can I change the matching pattern at run time?\7f197821
 184 Node: How can I expand macros in the input?\7f198183
 185 Node: How can I build a two-pass scanner?\7f199215
 186 Node: How do I match any string not matched in the preceding rules?\7f200133
 187 Node: I am trying to port code from AT&T lex that uses yysptr and yysbuf.\7f201042
 188 Node: Is there a way to make flex treat NULL like a regular character?\7f201837
 189 Node: Whenever flex can not match the input it says "flex scanner jammed".\7f202357
 190 Node: Why doesn't flex have non-greedy operators like perl does?\7f203000
 191 Node: Memory leak - 16386 bytes allocated by malloc.\7f204353
 192 Ref: faq-memory-leak\7f204651
 193 Node: How do I track the byte offset for lseek()?\7f205622
 194 Node: How do I use my own I/O classes in a C++ scanner?\7f207131
 195 Node: How do I skip as many chars as possible?\7f207974
 196 Node: deleteme00\7f209049
 197 Node: Are certain equivalent patterns faster than others?\7f209489
 198 Node: Is backing up a big deal?\7f212907
 199 Node: Can I fake multi-byte character support?\7f214813
 200 Node: deleteme01\7f216254
 201 Node: Can you discuss some flex internals?\7f217363
 202 Node: unput() messes up yy_at_bol\7f219607
 203 Node: The | operator is not doing what I want\7f220709
 204 Node: Why can't flex understand this variable trailing context pattern?\7f222255
 205 Node: The ^ operator isn't working\7f223504
 206 Node: Trailing context is getting confused with trailing optional patterns\7f224739
 207 Node: Is flex GNU or not?\7f225982
 208 Node: ERASEME53\7f227655
 209 Node: I need to scan if-then-else blocks and while loops\7f228425
 210 Node: ERASEME55\7f229624
 211 Node: ERASEME56\7f230722
 212 Node: ERASEME57\7f232080
 213 Node: Is there a repository for flex scanners?\7f233078
 214 Node: How can I conditionally compile or preprocess my flex input file?\7f233394
 215 Node: Where can I find grammars for lex and yacc?\7f233867
 216 Node: I get an end-of-buffer message for each character scanned.\7f234214
 217 Node: unnamed-faq-62\7f234809
 218 Node: unnamed-faq-63\7f235827
 219 Node: unnamed-faq-64\7f237124
 220 Node: unnamed-faq-65\7f238090
 221 Node: unnamed-faq-66\7f238876
 222 Node: unnamed-faq-67\7f239991
 223 Node: unnamed-faq-68\7f240978
 224 Node: unnamed-faq-69\7f242120
 225 Node: unnamed-faq-70\7f242833
 226 Node: unnamed-faq-71\7f243594
 227 Node: unnamed-faq-72\7f244803
 228 Node: unnamed-faq-73\7f245846
 229 Node: unnamed-faq-74\7f246770
 230 Node: unnamed-faq-75\7f247715
 231 Node: unnamed-faq-76\7f248847
 232 Node: unnamed-faq-77\7f249553
 233 Node: unnamed-faq-78\7f250446
 234 Node: unnamed-faq-79\7f251444
 235 Node: unnamed-faq-80\7f253144
 236 Node: unnamed-faq-81\7f254462
 237 Node: unnamed-faq-82\7f257262
 238 Node: unnamed-faq-83\7f258219
 239 Node: unnamed-faq-84\7f259999
 240 Node: unnamed-faq-85\7f261102
 241 Node: unnamed-faq-86\7f262109
 242 Node: unnamed-faq-87\7f263047
 243 Node: unnamed-faq-88\7f263693
 244 Node: unnamed-faq-90\7f264524
 245 Node: unnamed-faq-91\7f265787
 246 Node: unnamed-faq-92\7f268215
 247 Node: unnamed-faq-93\7f268714
 248 Node: unnamed-faq-94\7f269641
 249 Node: unnamed-faq-95\7f271053
 250 Node: unnamed-faq-96\7f272571
 251 Node: unnamed-faq-97\7f273330
 252 Node: unnamed-faq-98\7f273997
 253 Node: unnamed-faq-99\7f274662
 254 Node: unnamed-faq-100\7f275591
 255 Node: unnamed-faq-101\7f276301
 256 Node: What is the difference between YYLEX_PARAM and YY_DECL?\7f277114
 257 Node: Why do I get "conflicting types for yylex" error?\7f277638
 258 Node: How do I access the values set in a Flex action from within a Bison action?\7f278168
 259 Node: Appendices\7f278597
 260 Node: Makefiles and Flex\7f278862
 261 Ref: Makefiles and Flex-Footnote-1\7f282064
 262 Ref: Makefiles and Flex-Footnote-2\7f282181
 263 Ref: Makefiles and Flex-Footnote-3\7f282368
 264 Node: Bison Bridge\7f282419
 265 Ref: Bison Bridge-Footnote-1\7f285086
 266 Node: M4 Dependency\7f285278
 267 Ref: M4 Dependency-Footnote-1\7f286692
 268 Node: Common Patterns\7f286828
 269 Node: Numbers\7f287151
 270 Node: Identifiers\7f288127
 271 Node: Quoted Constructs\7f288954
 272 Node: Addresses\7f290008
 273 Node: Indices\7f291320
 274 Node: Concept Index\7f291612
 275 Node: Index of Functions and Macros\7f318745
 276 Node: Index of Variables\7f323714
 277 Node: Index of Data Types\7f325380
 278 Node: Index of Hooks\7f326268
 279 Node: Index of Scanner Options\7f326836
 280 \1f
 281 End Tag Table