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Index: L

-l (automatic line ending) command-line switch: 19.1.3. Switches
-l (symbolic link) file test: 3.10. Named Unary and File Test Operators
labels: 4.2. Compound Statements
4.4.4. Loop Control
with goto statement: 4.6. goto
29.2.71. goto
with loops: 4.4. Loop Statements
4.4.4. Loop Control
24.3. Programming with Style
names for: 2.5. Names
packages and: 10. Packages
language extensions, Perl modules for: 22.1. The CPAN modules Directory
languages
checking characters for: 5.4.3.3. Unicode block properties
natural vs. artificial: 1.2. Natural and Artificial Languages
translating: 24.5.2. Generating Perl in Other Languages
last operator: 1.6.2.4. Breaking out: next and last
24.3. Programming with Style
4.4.2. for Loops
4.4.4. Loop Control
4.4.4. Loop Control
4.5.1. Case Structures
24.2.1. Time Efficiency
29.2.81. last
do {} while construct, not taking: 24.1.3. C Traps
used in a do while: 4.5. Bare Blocks
$LAST_PAREN_MATCH: 28.2. Special Variables in Alphabetical Order
lc function: 29.2.82. lc
lcfirst function: 29.2.83. lcfirst
left justification: 7.1. Format Variables
left-shift (<<) operator: 3.9. Shift Operators
leftmost longest matching: 5.5. Quantifiers
length
of matched string: 28.2. Special Variables in Alphabetical Order
of arrays: 2.8.2. Array Length
of strings: 24.2.1. Time Efficiency
LENGTH (awk variable): 28.2. Special Variables in Alphabetical Order
length function: 29.2.84. length
byte-oriented wrapper for: 15.2. Effects of Character Semantics
length, matching: 5.5. Quantifiers
less module: 32.1.13. Perl Language Extensions and Internals
less than (<) operator: 3.11. Relational Operators
less than or equal (<=) operator: 3.11. Relational Operators
lexer: 18.2. Compiling Your Code
lexical analysis: 21.1. How Perl Works
in the Perl compiler: 18.2. Compiling Your Code
lexical scopes: 2.5. Names
4.8.2. Lexically Scoped Variables: my
pragmas and: 4.9. Pragmas
package variables, searching for: 2.5.1. Name Lookups
variables attached to: 2.5. Names
lexical variables: 7. Formats
29.2.99. my
accessing from functions: 6.2.3. Scoping Issues
file-scoped, storing anonymous subroutine in: 12.5.5. Private Methods
in functions or files, showing: 32.1.19. Perl Compiler and Code Generator
persistence across function calls: 6.2.3. Scoping Issues
recursive lexical pad stack: 18.3. Executing Your Code
symbolic references and: 8.4. Symbolic References
threads, accessing in: 17.2.2. Data Access
lexical warnings: 32.1.15. Warnings and Exceptions
${^WARNING_BITS}: 28.2. Special Variables in Alphabetical Order
lexically scoped declarations: 4.8. Scoped Declarations
lexicals: 4.8.1. Scoped Variable Declarations
(see also lexical scope)
lib module: 32.1.17. Module Installation Support
lib pragma: 11.1. Using Modules
C/C++, loading as Perl extensions: 32.1.17. Module Installation Support
32.1.17. Module Installation Support
ExtUtils::Liblist module: 32.1.17. Module Installation Support
math library, C: 21.3.4. Using Functions from an External C Library
Perl, installing modules into: 22.2.3. Installing CPAN Modules into the Perl Library
Perl library files, searching for: 19.2. Environment Variables
uninstalled extensions from MakeMaker: 32.1.17. Module Installation Support
life cycle, Perl programs: 18.1. The Life Cycle of a Perl Program
code generation phase: 18.1. The Life Cycle of a Perl Program
compilation phase: 18.1. The Life Cycle of a Perl Program
execution phase: 18.1. The Life Cycle of a Perl Program
parse tree reconstruction: 18.1. The Life Cycle of a Perl Program
__LINE__; setting: 24.5.2. Generating Perl in Other Languages
line counter (see $. variable)
line-end processing, automatic: 19.1.3. Switches
line input operators (see angle operator)
2.6.8. Other Literal Tokens
of input file: 28.2. Special Variables in Alphabetical Order
line-oriented quoting: 2.6.6. "Here" Documents
line reading operator: 1.4. Filehandles
line separator character: 2.2. Molecules
line terminators, Internet programs: 16.5.2. Networking Servers
__LINE__ token: 2.6.8. Other Literal Tokens
LineInfo option (debugger): 20.3.3. Debugger Options
boundary assertions: 5.6.1. Beginnings: The A and ^ Assertions
link function: 29.2.85. link
links: 29.2.123. readlink
HTTP, searching for: 1.7. Regular Expressions
lint (C program verifier): 18.6. Code Development Tools
list interpolation: 2.8. List Values and Arrays
list context: 1.8. List Processing
2.7.1. Scalar and List Context
angle operator in: 2.11.2. Line Input (Angle) Operator
backslash operator, supplying: 8.3.6. Other Tricks You Can Do with Hard References
comma operator in: 3.18. Comma Operators
conditional operator in: 3.16. Conditional Operator
evaluating expressions in (debugger): 20.2.4. Display
expressions in (see LISTs)
forcing scalar context instead: 29.2.137. scalar
foreach statements, providing: 1.6.2.3. The foreach statement
functions in: 29. Functions
hash variables, using in: 2.9. Hashes
hashes in: 1.2.1.2.2. Hashes.
list assignment in: 3.17. Assignment Operators
lvalues in: 4.8.1. Scoped Variable Declarations
m// (match) operator in: 5.2.2. The m// Operator (Matching)
m//g, listing all matches found: 5.2.2. The m// Operator (Matching)
operations behaving differently in: 24.1.2. Frequently Ignored Advice
range (..) operator in: 3.15. Range Operator
recognizing in debugger: 20.1. Using the Debugger
subroutines, calling and evaluating in: 6.2. Semantics
list method, current thread objects in process: 17.2.1.6. Listing current threads
list operators: 3. Unary and Binary Operators
3.1. Terms and List Operators (Leftward)
3.19. List Operators (Rightward)
unary operators, distinguishing from: 3.10. Named Unary and File Test Operators
list values, arrays and
2.8. List Values and Arrays
2.8. List Values and Arrays
listen function: 29.2.86. listen
listing code: 20.2.5. Locating Code
LISTs: 1.8. List Processing
4.2. Compound Statements
$LIST_SEPARATOR: 28.2. Special Variables in Alphabetical Order
literals: 5.1. The Regular Expression Bestiary
numeric (see numeric literals)
pseudoliterals (see input operators)
string (see string literals)
UTF-8, enabling use in: 15.2. Effects of Character Semantics
little-endian: 25.2. Endianness and Number Width
loading data structures: 9.6.3. Generation of a Hash of Complex Records
filehandles: 2.10. Typeglobs and Filehandles
signal handler assignment: 16.1. Signals
variables: 4.8.1. Scoped Variable Declarations
29.2.87. local
my declarations, using for: 24.1.2. Frequently Ignored Advice
local declaration: 29.2.87. local
local function: 4.8.1. Scoped Variable Declarations
4.8.2. Lexically Scoped Variables: my
29.2.87. local
common programming errors with: 24.1.1. Universal Blunders
my declaration, using instead of: 24.1.2. Frequently Ignored Advice
local operator, using on global variables: 4.8.4. Dynamically Scoped Variables: local
locale, Perl modules for: 22.1. The CPAN modules Directory
locale module: 32.1.6. Internationalization and Locale
locales
decimal points in formats: 7. Formats
declarations, string comparisons and: 3.11. Relational Operators
modules for: 32.1.6. Internationalization and Locale
Perl character class shortcuts and: 5.4.2. Classic Perl Character Class Shortcuts
Unicode and: 29.2.82. lc
use locale pragma with POSIX character classes: 5.4.4. POSIX-Style Character Classes
localization: 22.1. The CPAN modules Directory
(see also locale)
localized values, saving: 18.3. Executing Your Code
localtime function: 29.2.88. localtime
32.1.1. Data Types
32.1.7. Operating System Interfaces
lock function
data access control in threads: 17.2.2.1. Synchronizing access with lock
reference as argument for: 8.1. What Is a Reference?
locked attribute: 12.7.6. New Tricks
locked attribute (subroutines): 6.5. Subroutine Attributes
locking: 29.2.89. lock
locking files: 16.2.1. File Locking
DBM files: 16.2.1. File Locking
29.2.22. dbmopen
dissolving locks by closing files: 16.2.1. File Locking
flock function: 29.2.39. flock
shared and exclusive locks: 16.2.1. File Locking
locking methods: 17.2.2.5. Locking methods
locking subroutines: 17.2.2.3. Locking subroutines
log function: 29.2.90. log
logarithm: 29.2.90. log
LOGDIR variable: 19.2. Environment Variables
logfiles, Perl modules for: 22.1. The CPAN modules Directory
logical
AND (&&) operator: 3.14. C-Style Logical (Short-Circuit) Operators
negation (!) operator: 3.5. Ideographic Unary Operators
operators: 3.14. C-Style Logical (Short-Circuit) Operators
3.20. Logical and, or, not, and xor
OR (||) operator: 3.14. C-Style Logical (Short-Circuit) Operators
separation, parent and child processes: 17.1. The Process Model
logical operators: 1.5.5. Logical Operators
or operator use with list operators: 4.7. Global Declarations
overloading: 13.3. Overloadable Operators
Perl, doing alternation: 5.9.1. Letting Perl Do the Work
precedence of: 12.3.3. Syntactic Snafus with Indirect Objects
login names
functions dealing with: 29.1. Perl Functions by Category
getgrent function: 29.2.44. getgrent
getgrgid function, returning: 29.2.45. getgrgid
getgrnam function, returning: 29.2.46. getgrnam
getlogin function for: 29.2.50. getlogin
long longs: 29.2.108. pack
longs: 29.2.108. pack
lookahead: 5.10.1. Lookaround Assertions
lookaround: 5.10.1. Lookaround Assertions
lookbehind: 5.10.1. Lookaround Assertions
loops: 1.6.2. Iterative (Looping) Constructs
4.4. Loop Statements
24.1.1. Universal Blunders
24.3. Programming with Style
comments and blank lines, discarding before processing: 5.9.1. Letting Perl Do the Work
control operators for: 4.4.4. Loop Control
eval function within: 24.2.1. Time Efficiency
extracting slices, multidimensional arrays: 9.1.4. Slices
for loops: 1.6.2.2. The for statement
foreach loops: 1.6.2.3. The foreach statement
G assertion, using in: 5.6.5. Where You Left Off: The G Assertion
infinite: 4.4.2. for Loops
iteration through: 4.4.2. for Loops
labels for: 4.4.4. Loop Control
last operator: 4.4.2. for Loops
29.2.81. last
next and last operators: 1.6.2.4. Breaking out: next and last
next operator: 29.2.101. next
redo operator and: 29.2.126. redo
reset function and: 29.2.130. reset
s/// (substitution) operator, using on arrays: 5.2.3.1. Modifying strings en passant
using for: 4.4.2. for Loops
using in (global substitutions): 5.2.3.2. When a global substitution just isn't global enough
using until: 4.4.1. while and until Statements
using while: 4.4.1. while and until Statements
while loops: 1.6.2.1. The while and until statements
lowercase, converting to: 2.6.2. String Literals
lport manpage, function portability information: 29.2. Perl Functions in Alphabetical Order
lstat function: 29.2.91. lstat
29.2.91. lstat
32.1.4. Filenames, Filesystems, and File Locking
lvalues: 2.4. Variables
assignment operators and: 3.17. Assignment Operators
lvalue attribute, subroutines: 6.5. Subroutine Attributes
6.5.2. The lvalue Attribute
methods, declaring to indicate return of: 12.7.6. New Tricks
modifiers and: 4.8.1. Scoped Variable Declarations
operators and: 1.5.3. Assignment Operators
pattern-matching operators, use on: 5.2. Pattern-Matching Operators


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