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<html><head><title>Index: B</title></head><body bgcolor="#FFFFFF" text="#000000"><!-- START OF BODY --><!-- TOP BANNER --><p><img src="../gifs/smbanns.gif" usemap="#banner-map" border=0 alt="Book Home" ></p><map name="banner-map"><AREA SHAPE="RECT" COORDS="0,0,466,71" HREF="../index.htm" ALT="Programming Perl"><AREA SHAPE="RECT" COORDS="467,0,514,18" HREF="../jobjects/fsearch.htm" ALT="Search this book"></map><!-- TOP INDEX LINKS --><p><a href="idx_0.htm">Symbols</a>| <a href="idx_a.htm">A</a>| <a href="idx_b.htm">B</a>| <a href="idx_c.htm">C</a>| <a href="idx_d.htm">D</a>| <a href="idx_e.htm">E</a>| <a href="idx_f.htm">F</a>| <a href="idx_g.htm">G</a>| <a href="idx_h.htm">H</a>| <a href="idx_i.htm">I</a>| <a href="idx_j.htm">J</a>| <a href="idx_k.htm">K</a>| <a href="idx_l.htm">L</a>| <a href="idx_m.htm">M</a>| <a href="idx_n.htm">N</a>| <a href="idx_o.htm">O</a>| <a href="idx_p.htm">P</a>| <a href="idx_q.htm">Q</a>| <a href="idx_r.htm">R</a>| <a href="idx_s.htm">S</a>| <a href="idx_t.htm">T</a>| <a href="idx_u.htm">U</a>| <a href="idx_v.htm">V</a>| <a href="idx_w.htm">W</a>| <a href="idx_x.htm">X</a>| <a href="idx_y.htm">Y</a>| <a href="idx_z.htm">Z</a></FONT><!-- INDEX SECTION BODY --><H1>Index: B</H1><DL><a name="-b-backspace-assertion-in-character-classes"><dt>\b (backspace assertion in character classes): <a href="../ch05_04.htm#INDEX-1538">5.4.1. Custom Character Classes</a></dt><a name="-b-assertion"> <a name="for-backspace"> <dd><dl> <dt><a href="../ch05_09.htm#INDEX-1721">5.9.4. The Little Engine That /Could(n't)?/</a></dt> </dl></dd><a name="-b-block-special-file-test-operator"><dt>-b (block special) file test operator: <a href="../ch03_10.htm#INDEX-907">3.10. Named Unary and File Test Operators</a></dt><a name="-B-binary-file-test-operator"><dt>-B (binary file) test operator: <a href="../ch03_10.htm#INDEX-918">3.10. Named Unary and File Test Operators</a></dt><a name="B-module"><dt>B module: <a href="../ch32_01.htm#INDEX-5747">32.1.19. Perl Compiler and Code Generator</a></dt><a name="-B-non-word-boundary"><dt>\B (non word boundary): <a href="../ch05_06.htm#INDEX-1623">5.6.3. Boundaries: The \b and \B Assertions</a></dt><a name="-b-word-boundary-assertion"><dt>\b word boundary assertion: <a href="../ch05_01.htm#INDEX-1282">5.1. The Regular Expression Bestiary</a></dt> <dd><dl> <a name="-b-word-boundary-assertion"><dt><a href="../ch05_06.htm#INDEX-1622">5.6.3. Boundaries: The \b and \B Assertions</a></dt><a name="b-word-boundary=-b-word-boundary"><dt><a href="../ch01_07.htm#INDEX-381">1.7.3. Nailing Things Down</a></dt> </dl></dd><a name="B::Asmdata-module"><dt>B::Asmdata module: <a href="../ch32_01.htm#INDEX-5748">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Assemble-module"><dt>B::Assemble module: <a href="../ch32_01.htm#INDEX-5749">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Bblock-module"><dt>B::Bblock module: <a href="../ch32_01.htm#INDEX-5750">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Bytecode-module"><dt>B::Bytecode module: <a href="../ch18_05.htm#INDEX-3285">18.5.1. The Bytecode Generator</a></dt><dd><dl> <dt><a href="../ch32_01.htm#INDEX-5751">32.1.19. Perl Compiler and Code Generator</a></dt></dl></dd><a name="B::C-and-B::CC-modules"><dt>B::C and B::CC modules: <a href="../ch18_05.htm#INDEX-3292">18.5.2. The C Code Generators</a></dt><a name="B::C-module"><dt>B::C module: <a href="../ch32_01.htm#INDEX-5753">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::CC-module"><dt>B::CC module: <a href="../ch32_01.htm#INDEX-5754">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Debug-module"><dt>B::Debug module: <a href="../ch32_01.htm#INDEX-5755">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Deparse-module"><dt>B::Deparse module: <a href="../ch18_06.htm#INDEX-3302">18.6. Code Development Tools</a></dt><dd><dl> <dt><a href="../ch32_01.htm#INDEX-5756">32.1.19. Perl Compiler and Code Generator</a></dt></dl></dd><a name="B::Disassembler-module"><dt>B::Disassembler module: <a href="../ch32_01.htm#INDEX-5757">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Lint-module"><dt>B::Lint module: <a href="../ch18_06.htm#INDEX-3296">18.6. Code Development Tools</a></dt><dd><dl> <dt><a href="../ch32_01.htm#INDEX-5758">32.1.19. Perl Compiler and Code Generator</a></dt></dl></dd><dt>B::Showlex module: <a href="../ch32_01.htm#INDEX-5759">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Stash-module"><dt>B::Stash module: <a href="../ch32_01.htm#INDEX-5761">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Terse-module"><dt>B::Terse module: <a href="../ch32_01.htm#INDEX-5762">32.1.19. Perl Compiler and Code Generator</a></dt><a name="B::Xref-module"><dt>B::Xref module: <a href="../ch18_06.htm#INDEX-3298">18.6. Code Development Tools</a></dt><dd><dl> <dt><a href="../ch32_01.htm#INDEX-5763">32.1.19. Perl Compiler and Code Generator</a></dt></dl></dd><a name="backends-compiler"><dt>backends, compiler: <a href="../ch18_04.htm#INDEX-3273">18.4. Compiler Backends</a></dt><dd><dl> <dt><a href="../ch32_01.htm#INDEX-5752">32.1.19. Perl Compiler and Code Generator</a></dt> <a name="generic-interface-to"> <dt>generic interface to: <a href="../ch32_01.htm#INDEX-5766">32.1.19. Perl Compiler and Code Generator</a></dt> <a name="modules"> <dt>modules: <a href="../ch18_04.htm#INDEX-3277">18.4. Compiler Backends</a></dt> <a name="modules-calling"> <dt>modules, calling: <a href="../ch18_04.htm#INDEX-3280">18.4. Compiler Backends</a></dt></dl></dd><a name="backquotes-`"><dt>backquotes (`): <a href="../ch01_02.htm#INDEX-58">1.2.1.1. Singularities</a></dt><a name="backreferences"><dt>backreferences: <a href="../ch01_07.htm#INDEX-387">1.7.4. Backreferences</a></dt><dd><dl> <dt><a href="../ch05_02.htm#INDEX-1367">5.2.2. The m// Operator (Matching)</a></dt> <dt><a href="../ch05_07.htm#INDEX-1644">5.7.1. Capturing</a></dt> <dt><a href="../ch24_01.htm#INDEX-4114">24.1.1. Universal Blunders</a></dt> <dt><a href="../ch28_02.htm#INDEX-4389">28.2. Special Variables in Alphabetical Order</a></dt> <a name="accessing-with-numbered-variables"> <dt>accessing with numbered variables: <a href="../ch05_07.htm#INDEX-1646">5.7.1. Capturing</a></dt> <a name="creating-with-parentheses"> <dt>creating with parentheses: <a href="../ch05_07.htm#INDEX-1648">5.7.1. Capturing</a></dt> <a name="deriving-patterns-from-matched-substrings"> <dt>deriving patterns from matched substrings: <a href="../ch05_10.htm#INDEX-1769">5.10.3.4. Match-time pattern interpolation</a></dt></dl></dd><a name="backslash---interpreting-with-double-quotes"><dt>backslash (\), interpreting with double quotes: <a href="../ch01_02.htm#INDEX-55">1.2.1.1. Singularities</a></dt><a name="backspace"><dt>backspace, \b assertion in character class: <a href="../ch05_06.htm#INDEX-1628">5.6.3. Boundaries: The \b and \B Assertions</a></dt> <dd><dl> <dt><a href="../ch05_04.htm#INDEX-1539">5.4.1. Custom Character Classes</a></dt></dl></dd><a name="BACKSPACE-character"><dt>BACKSPACE character</dt><dd><dl> <a name="-b-for"> <dt>/b for: <a href="../ch05_09.htm#INDEX-1722">5.9.4. The Little Engine That /Could(n't)?/</a></dt></dl></dd><a name="backticks"><dt>backticks, <a name="portability-of">portability of: <a href="../ch25_05.htm#INDEX-4354">25.5. Interprocess Communication (IPC)</a></dt><a name="backtracking"><dt>backtracking: <a href="../ch05_09.htm#INDEX-1698">5.9.4. The Little Engine That /Could(n't)?/</a></dt><dd><dl> <a name="nonbacktracking-subpatterns"> <dt>nonbacktracking subpatterns: <a href="../ch05_10.htm#INDEX-1750">5.10.2. Nonbacktracking Subpatterns</a></dt> <a name="in-pattern-matching"> <dt>in pattern matching: <a href="../ch05_09.htm#INDEX-1704">5.9.4. The Little Engine That /Could(n't)?/</a></dt></dl></dd><a name="backup-files"><dt>backup files: <a href="../ch19_01.htm#INDEX-3412">19.1.3. Switches</a></dt><a name="backward-compatibility"><a name="bare-blocks"><dt>bare blocks: <a href="../ch04_05.htm#INDEX-1135">4.5. Bare Blocks</a></dt><dd><dl> <a name="case-structures-doing-with"> <dt>case structures, doing with: <a href="../ch04_05.htm#INDEX-1151">4.5.1. Case Structures</a></dt></dl></dd><a name="bare-identifiers"><dt>bare identifiers: <a href="../ch02_06.htm#INDEX-600">2.6.4. Or Leave the Quotes Out Entirely</a></dt><a name="barewords"><dt>barewords: <a href="../ch02_06.htm#INDEX-595">2.6.4. Or Leave the Quotes Out Entirely</a></dt><dd><dl> <a name="avoiding-reasons-for"> <dt>avoiding, reasons for: <a href="../ch24_01.htm#INDEX-4127">24.1.2. Frequently Ignored Advice</a></dt> <a name="Perl-versions-changes-in"> <dt>Perl versions, changes in: <a href="../ch24_01.htm#INDEX-4161">24.1.5. Previous Perl Traps</a></dt> <a name="strict-pragma-checking-use-of"> <dt>strict pragma, checking use of: <a href="../ch04_09.htm#INDEX-1247">4.9.2. Controlling the Use of Globals</a></dt></dl></dd><a name="base-class"><a name="base-classes"><dt>base classes: <a href="../ch12_01.htm#INDEX-2347">12.1. Brief Refresher on Object-Oriented Lingo</a></dt><dd><dl> <dt><a href="../ch32_01.htm#INDEX-5654">32.1.14. Convenient Classes</a></dt> <a name="constructors-and"> <dt>constructors and: <a href="../ch12_04.htm#INDEX-2432">12.4.2. Initializers</a></dt> <a name="overriding-methods-of"> <dt>overriding methods of: <a href="../ch12_05.htm#INDEX-2457">12.5.2. Accessing Overridden Methods</a></dt> <a name="for-pod-filters-and-translators"> <dt>for pod filters and translators: <a href="../ch32_01.htm#INDEX-5686">32.1.16. Documentation Support</a></dt> <dt>overridden methods, invoking all: <a href="../ch12_05.htm#INDEX-2477">12.5.3. UNIVERSAL: The Ultimate Ancestor Class</a></dt><a name="UNIVERSAL-module-providing-for-all-classes"> <dt>UNIVERSAL module, providing for all classes: <a href="../ch32_01.htm#INDEX-5667">32.1.14. Convenient Classes</a></dt></dl></dd><a name="base-module"><dt>base module: <a href="../ch32_01.htm#INDEX-5620">32.1.13. Perl Language Extensions and Internals</a></dt><a name="basename-files"><dt>basename, files: <a href="../ch32_01.htm#INDEX-5465">32.1.4. Filenames, Filesystems, and File Locking</a></dt><a name="$BASETIME"><dt>$BASETIME: <a href="../ch28_02.htm#INDEX-4415">28.2. Special Variables in Alphabetical Order</a></dt><a name="basetime-$^T"><dt>basetime ($^T): <a href="../ch28_02.htm#INDEX-4416">28.2. Special Variables in Alphabetical Order</a></dt><a name="BASIC-programming-language"><dt>BASIC programming language</dt><dd><dl> <a name="logical-operators-borrowed-from"> <dt>logical operators borrowed from: <a href="../ch01_05.htm#INDEX-240">1.5.5. Logical Operators</a></dt></dl></dd><a name="BEGIN-blocks"><dt>BEGIN blocks: <a href="../ch18_01.htm#INDEX-3227">18.1. The Life Cycle of a Perl Program</a></dt><dd><dl> <dt><a href="../ch21_01.htm#INDEX-3675">21.1. How Perl Works</a></dt> <a name="altering-compiler-parsing-of-file"> <dt>altering compiler parsing of file: <a href="../ch18_07.htm#INDEX-3311">18.7. Avant-Garde Compiler, Retro Interpreter</a></dt> <a name="initializing-variables-before-calling-subroutines"> <dt>initializing variables before calling subroutines: <a href="../ch06_02.htm#INDEX-1835">6.2.3. Scoping Issues</a></dt> <a name="modifications-to-@INC-array-handling-with"> <dt>modifications to @INC array, handling with: <a href="../ch11_01.htm#INDEX-2286">11.1. Using Modules</a></dt> <a name="order-of-running"> <dt>order of running: <a href="../ch18_07.htm#INDEX-3307">18.7. Avant-Garde Compiler, Retro Interpreter</a></dt></dl></dd><a name="beginnings-of-strings-matching"><dt>beginnings of strings, matching: <a href="../ch05_06.htm#INDEX-1611">5.6.1. Beginnings: The \A and ^ Assertions</a></dt><a name="Benchmark-module"><dt>Benchmark module: <a href="../ch32_01.htm#INDEX-5739">32.1.18. Development Support</a></dt><dd><dl> <a name="comparing-running-times-of-alternate-code-versions"> <dt>comparing running times of alternate code versions: <a href="../ch32_02.htm#INDEX-5800">32.2. Benchmark</a></dt></dl></dd><a name="bidirectional-communication-pipes"><dt>bidirectional communication, pipes: <a href="../ch16_03.htm#INDEX-3021">16.3.3. Bidirectional Communication </a></dt><a name="bidirectional-rendering-Unicode-properties"><dt>bidirectional rendering, Unicode properties: <a href="../ch05_04.htm#INDEX-1564">5.4.3.2. Standard Unicode properties</a></dt><a name="big-endian"><dt>big-endian: <a href="../ch25_02.htm#INDEX-4326">25.2. Endianness and Number Width</a></dt><dd><dl></dl></dd><a name="-bin-sh"><dt>/bin/sh: <a href="../ch19_01.htm#INDEX-3345">19.1. Command Processing</a></dt><a name="binary"><dd><dl> <a name="files"> <dt>files: <a href="../ch29_02.htm#INDEX-5075">29.2.104. open</a></dt> <dd><dl><a name="binary-files"> <a name="decompiling-with-B::Deparse-module"> <dt>decompiling with B::Deparse module: <a href="../ch18_06.htm#INDEX-3303">18.6. Code Development Tools</a></dt> <a name="as-regular-files"> <dt>as regular files: <a href="../ch01_05.htm#INDEX-281">1.5.7. Some File Test Operators</a></dt> </dl></dd><a name="mode-on-filehandles"> <dt>mode on filehandles: <a href="../ch29_02.htm#INDEX-4650">29.2.6. binmode</a></dt> <a name="operators"> <dt>operators (see also <a href="idx_b.htm#bitwise-operators">bitwise operators</a>)<a name="binary-operators">: <a href="../ch01_05.htm#INDEX-193">1.5. Operators</a></dt><dd><dl> <dt><a href="../ch03_01.htm#INDEX-773">3. Unary and Binary Operators</a></dt> <dt><a href="../ch03_01.htm#INDEX-779">3. Unary and Binary Operators</a></dt> <a name="class-handler-invoking"> <dt>class handler, invoking: <a href="../ch13_01.htm#INDEX-2609">13.1. The overload Pragma</a></dt> </dl></dd><a name="pack-function"> <dt>pack function: <a href="../ch29_02.htm#INDEX-5092">29.2.108. pack</a></dt> <a name="repetition-x-operator"> <dt>repetition (x) operator: <a href="../ch01_05.htm#INDEX-208">1.5.2. String Operators</a></dt><dd><dl> <dt><a href="../ch03_07.htm#INDEX-850">3.7. Multiplicative Operators</a></dt> </dl></dd></dl></dd><a name="bind-function"><dt>bind function: <a href="../ch29_02.htm#INDEX-4644">29.2.5. bind</a></dt><a name="binding">⌨️ 快捷键说明
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