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<html><head><title>Index: Symbols</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: Symbols</H1><DL><a name="@+-array-of-ending-positions"><dt>@+ array of ending positions: <a href="../ch28_02.htm#INDEX-4509">28.2. Special Variables in Alphabetical Order</a></dt><a name="$!-portability-of"><dt>$!, portability of: <a href="../ch25_04.htm#INDEX-4348">25.4. System Interaction</a></dt><a name="&-ampersand"><dt>& (ampersand): <a href="../ch03_10.htm#INDEX-886">3.10. Named Unary and File Test Operators</a></dt><dd><dl> <a name="address-of-operator-in-C"> <dt>address-of operator (in C): <a href="../ch03_21.htm#INDEX-">3.21. C Operators Missing from Perl</a></dt> <a name="&-bitwise-and-operator"> <dt>& (bitwise and) operator: <a href="../ch03_13.htm#INDEX-956">3.13. Bitwise Operators</a></dt> <a name="&&-AND-operator"> <dt>&& (AND) operator: <a href="../ch03_14.htm#INDEX-966">3.14. C-Style Logical (Short-Circuit) Operators</a></dt> <a name="&&=-assignment-operator"> <dt>&&= (assignment) operator: <a href="../ch03_17.htm#INDEX-1006">3.17. Assignment Operators</a></dt> <a name="in-filenames"> <dt>in filenames: <a href="../ch29_02.htm#INDEX-5064">29.2.104. open</a></dt> <a name="Perl-version-5-changes-in-use"> <dt>Perl version 5, changes in use: <a href="../ch01_02.htm#INDEX-148">1.2.2. Verbs</a></dt> <a name="prototype-character"> <dt>prototype character: <a href="../ch06_04.htm#INDEX-1857">6.4. Prototypes</a></dt> <a name="for-subroutine-names"> <dt>for subroutine names: <a href="../ch01_02.htm#INDEX-43">1.2.1. Variable Syntax</a></dt><dd><dl> <dt><a href="../ch02_05.htm#INDEX-460">2.5. Names</a></dt> <dt><a href="../ch02_05.htm#INDEX-471">2.5. Names</a></dt> <dt><a href="../ch04_06.htm#INDEX-1164">4.6. goto</a></dt> <dt><a href="../ch06_01.htm#INDEX-1799">6.1. Syntax</a></dt> <a name="omitting-in-prototypes"> <dt>omitting in prototypes: <a href="../ch06_04.htm#INDEX-1850">6.4. Prototypes</a></dt> </dl></dd></dl></dd><a name="*-asterisk"><dt>* (asterisk): <a href="../ch03_10.htm#INDEX-881">3.10. Named Unary and File Test Operators</a></dt><dd><dl> <a name="**-exponentiationoperator"> <dt>** (exponentiation)operator: <a href="../ch03_04.htm#INDEX-823">3.4. Exponentiation</a></dt> <a name="**=-exponentiation-assignment-operator"> <dt>**= (exponentiation assignment) operator: <a href="../ch03_17.htm#INDEX-993">3.17. Assignment Operators</a></dt> <a name="*=-multiplication-assignment-operator"> <dt>*= (multiplication assignment) operator: <a href="../ch03_17.htm#INDEX-997">3.17. Assignment Operators</a></dt> <a name="*?-quantifier"> <dt>*? quantifier: <a href="../ch05_03.htm#INDEX-1490">5.3.1. Metasymbol Tables</a></dt> <a name="metacharacter"> <dt>metacharacter: <a href="../ch05_01.htm#INDEX-1269">5.1. The Regular Expression Bestiary</a></dt><dd><dl> <dt><a href="../ch05_03.htm#INDEX-1459">5.3. Metacharacters and Metasymbols</a></dt> </dl></dd> <a name="multiplicative-operator"> <dt>(multiplicative) operator: <a href="../ch03_01.htm#INDEX-805">3.1. Terms and List Operators (Leftward)</a></dt> <a name="prototype-character"> <dt>prototype character: <a href="../ch06_04.htm#INDEX-1860">6.4. Prototypes</a></dt> <a name="quantifier"> <dt>quantifier: <a href="../ch01_07.htm#INDEX-370">1.7.1. Quantifiers</a></dt><dd><dl> <dt><a href="../ch05_03.htm#INDEX-1484">5.3.1. Metasymbol Tables</a></dt> </dl></dd> <a name="in-quantifiers"> <dt>in quantifiers: <a href="../ch05_05.htm#INDEX-1589">5.5. Quantifiers</a></dt> <a name="typeglob"> <dt>typeglob: <a href="../ch01_02.htm#INDEX-45">1.2.1. Variable Syntax</a></dt> <a name="for-typeglob-names"> <dt>for typeglob names: <a href="../ch02_05.htm#INDEX-472">2.5. Names</a></dt><dd><dl> <dt><a href="../ch02_10.htm#INDEX-725">2.10. Typeglobs and Filehandles</a></dt> </dl></dd></dl></dd><a name="@-at-sign"><dt>@ (at sign)</dt><dd><dl> <a name="for-array-names"> <dt>for array names: <a href="../ch01_02.htm#INDEX-37">1.2.1. Variable Syntax</a></dt><dd><dl> <dt><a href="../ch02_04.htm#INDEX-455">2.4. Variables</a></dt> </dl></dd> <a name="@--array"> <dt>@- array: <a href="../ch05_07.htm#INDEX-1655">5.7.1. Capturing</a></dt> <a name="@+-array-of-ending-positions"> <dt>@+ array of ending positions: <a href="../ch05_07.htm#INDEX-1654">5.7.1. Capturing</a></dt> <a name="@_-arrays"> <dt>@_ arrays: <a href="../ch06_02.htm#INDEX-1811">6.2. Semantics</a></dt> <a name="@_-array"> <dt>@_ array: <a href="../ch06_02.htm#INDEX-1809">6.2. Semantics</a></dt><dd><dl> <dt><a href="../ch28_02.htm#INDEX-4405">28.2. Special Variables in Alphabetical Order</a></dt> </dl></dd> <a name="changes-in-use-Perl-versions"> <dt>changes in use, Perl versions: <a href="../ch24_01.htm#INDEX-4160">24.1.5. Previous Perl Traps</a></dt> <a name="in-debugger"> <dt>in debugger: <a href="../ch20_01.htm#INDEX-3515">20.1. Using the Debugger</a></dt> <a name="inside-strings-escaping-with-backslash"> <dt>inside strings, escaping with backslash: <a href="../ch02_06.htm#INDEX-581">2.6.2. String Literals</a></dt> <a name="in-picture-lines"> <dt>in picture lines: <a href="../ch07_01.htm#INDEX-1894">7. Formats</a></dt> <a name="prototype-character"> <dt>prototype character: <a href="../ch06_04.htm#INDEX-1855">6.4. Prototypes</a></dt></dl></dd><a name="--backslash"><dt>\ (backslash)</dt><dd><dl> <a name="-...-metasymbol"> <dt>\... metasymbol: <a href="../ch05_03.htm#INDEX-1476">5.3.1. Metasymbol Tables</a></dt> <a name="entering-continued-commands-in-debugger"> <dt>entering continued commands in debugger: <a href="../ch20_02.htm#INDEX-3528">20.2. Debugger Commands</a></dt> <a name="to-escape-metacharacters"> <dt>to escape metacharacters: <a href="../ch05_01.htm#INDEX-1268">5.1. The Regular Expression Bestiary</a></dt><dd><dl> <dt><a href="../ch05_03.htm#INDEX-1470">5.3. Metacharacters and Metasymbols</a></dt> </dl></dd> <a name="interpretation-by-regex-parser"> <dt>interpretation by regex parser: <a href="../ch05_09.htm#INDEX-1685">5.9.2.1. When backslashes happen</a></dt> <a name="metacharacter"> <dt>metacharacter: <a href="../ch05_01.htm#INDEX-1279">5.1. The Regular Expression Bestiary</a></dt> <a name="for-multiline-commands"> <dt>for multiline commands: <a href="../ch20_01.htm#INDEX-3509">20.1. Using the Debugger</a></dt> <a name="-Q-notation-for-backslashing-nonalphanumeric-characters"> <dt>\Q notation for backslashing nonalphanumeric characters: <a href="../ch02_06.htm#INDEX-574">2.6.2. String Literals</a></dt> <a name="quoted-strings-avoiding-overuse-in"> <dt>quoted strings, avoiding overuse in: <a href="../ch02_06.htm#INDEX-591">2.6.3. Pick Your Own Quotes</a></dt> <a name="quotemeta-function-for"> <dt>quotemeta function for: <a href="../ch29_02.htm#INDEX-5133">29.2.118. quotemeta</a></dt> <a name="reference-operator"> <dt>reference operator: <a href="../ch03_05.htm#INDEX-839">3.5. Ideographic Unary Operators</a></dt><dd><dl> <dt><a href="../ch08_02.htm#INDEX-1976">8.2.1. The Backslash Operator</a></dt> </dl></dd></dl></dd><a name="---backslash"><dt>\\ (backslash)</dt><dd><dl> <a name="double-quotes-interpreting-with"> <dt>double quotes, interpreting with: <a href="../ch01_02.htm#INDEX-56">1.2.1.1. Singularities</a></dt></dl></dd><a name="`-backtick-operator"><dt>` (backtick) operator</dt><dd><dl> <a name="shell-programming-Perl-vs."> <dt>shell programming, Perl vs.: <a href="../ch24_01.htm#INDEX-4153">24.1.4. Shell Traps</a></dt></dl></dd><a name="!-bang"><dt>! (bang)</dt><dd><dl> <a name="!-logical-negation-operator"> <dt>! (logical negation) operator</dt><dd><dl> <a name="overloading"> <dt>overloading: <a href="../ch13_03.htm#INDEX-">13.3. Overloadable Operators</a></dt> </dl></dd> <a name="!!-debugger-command"> <dt>!! debugger command: <a href="../ch20_02.htm#INDEX-3565">20.2.6. Actions and Command Execution</a></dt> <a name="!~-binding-operator"> <dt>!~ (binding) operator: <a href="../ch03_06.htm#INDEX-842">3.6. Binding Operators</a></dt><dd><dl> <a name="using-with-pattern-matching-operators"> <dt>using with pattern matching operators: <a href="../ch05_02.htm#INDEX-1314">5.2. Pattern-Matching Operators</a></dt> </dl></dd> <a name="complemented-character-sets-using-for"> <dt>complemented character sets, using for: <a href="../ch05_04.htm#INDEX-1575">5.4.3.4. Defining your own character properties</a></dt> <a name="in-debugger-commands"> <dt>in debugger commands: <a href="../ch20_02.htm#INDEX-3564">20.2.6. Actions and Command Execution</a></dt> <a name="logical-negation-operator"> <dt>logical negation operator: <a href="../ch03_05.htm#INDEX-827">3.5. Ideographic Unary Operators</a></dt> <a name="!=-not-equal-to-operator"> <dt>!= (not equal to) operator: <a href="../ch01_05.htm#INDEX-258">1.5.6. Some Numeric and String Comparison Operators</a></dt><dd><dl> <dt><a href="../ch24_01.htm#INDEX-4106">24.1.1. Universal Blunders</a></dt> </dl></dd></dl></dd><a name="{}-braces"><dt>{} braces: <a href="../ch24_01.htm#INDEX-4113">24.1.1. Universal Blunders</a></dt><a name="[]-brackets"><dt>[] (brackets)</dt><dd><dl> <a name="[-metacharacter"> <dt>[ metacharacter: <a href="../ch05_01.htm#INDEX-1272">5.1. The Regular Expression Bestiary</a></dt><dd><dl> <dt><a href="../ch05_03.htm#INDEX-1462">5.3. Metacharacters and Metasymbols</a></dt> </dl></dd> <a name="[...]-character-class"> <dt>[...] character class: <a href="../ch05_03.htm#INDEX-1481">5.3.1. Metasymbol Tables</a></dt> <a name="character-classes"> <dt>character classes: <a href="../ch05_03.htm#INDEX-1499">5.3.1. Metasymbol Tables</a></dt><dd><dl> <dt><a href="../ch05_04.htm#INDEX-1532">5.4.1. Custom Character Classes</a></dt> </dl></dd> <a name="to-match-characters"> <dt>to match characters: <a href="../ch05_09.htm#INDEX-1720">5.9.4. The Little Engine That /Could(n't)?/</a></dt> <a name="precedence-of"> <dt>precedence of: <a href="../ch03_01.htm#INDEX-799">3.1. Terms and List Operators (Leftward)</a></dt></dl></dd><a name="^-caret-;line-boundary"><dt>^ (caret) ;line boundary: <a href="../ch05_06.htm#INDEX-1610">5.6.1. Beginnings: The \A and ^ Assertions</a></dt><a name=":-colon"><dt>: (colon)</dt><dd><dl> <a name="::-in-module-names-translating-to-system-directory-separators"> <dt>:: in module names, translating to system directory separators: <a href="../ch11_01.htm#INDEX-2282">11.1. Using Modules</a></dt> <a name="::-for-package-identifiers"> <dt>:: for package identifiers: <a href="../ch02_06.htm#INDEX-603">2.6.4. Or Leave the Quotes Out Entirely</a></dt><dd><dl> <dt><a href="../ch10_01.htm#INDEX-2211">10. Packages</a></dt> <dt><a href="../ch24_01.htm#INDEX-4165">24.1.5. Previous Perl Traps</a></dt> </dl></dd>⌨️ 快捷键说明
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