Index

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# Index: L

\L string escape : 1.9. Controlling Case
\l string escape : 1.9. Controlling Case
labels, menu : 15.14. Creating Menus with Tk
last( ) : 4.12. Finding the First List Element That Passes a Test
laston program : 8.20. Program: laston
lc( ) : 1.9. Controlling Case
lcfirst( ) : 1.9. Controlling Case
leading whitespace, removing : 1.14. Trimming Blanks from the Ends of a String
lexical scope
  10.2. Making Variables Private to a Function
  10.13. Saving Global Values
libraries : 12.0. Introduction
libwww-perl modules : 20.0. Introduction
line breaks
  (see also whitespace)
  6.6. Matching Multiple Lines
  counting lines in files : 8.2. Counting Lines (or Paragraphs or Records) in a File
  defining lines : 8.11. Processing Binary Files
  deleting last file line : 8.10. Removing the Last Line of a File
  extracting ranges of lines : 6.8. Extracting a Range of Lines
  matching across multiple lines : 6.6. Matching Multiple Lines
  random lines from files : 8.6. Picking a Random Line from a File
  randomizing file line order : 8.7. Randomizing All Lines
  reading files backwards : 8.4. Reading a File Backwards by Line or Paragraph
  reading with continuation characters : 8.1. Reading Lines with Continuation Characters
line mode interfaces : 15.0. Introduction
__LINE__ symbol : 10.4. Determining Current Function Name
LINE: (implicit loop label) : 7.7. Writing a Filter
Lingua::EN::Inflect module : 2.18. Printing Correct Plurals
links : (see hyperlinks)
  extracting from HTML : 20.3. Extracting URLs
list assignment : 1.3. Exchanging Values Without Using Temporary Variables
list context, detecting : 10.6. Detecting Return Context
listen( ) : 17.0. Introduction
lists : 4.0. Introduction
  arrays vs. : 4.0. Introduction
  circular : 4.16. Implementing a Circular List
  extracting particular elements : 4.6. Extracting Unique Elements from a List
  extracting particular subsets : 4.13. Finding All Elements in an Array Matching Certain Criteria
  flattened : 4.0. Introduction
  initializing : 4.1. Specifying a List In Your Program
  iterating through all elements
    4.4. Doing Something with Every Element in a List
    4.12. Finding the First List Element That Passes a Test
  permute programs : 4.19. Program: permute
  printing with commas : 4.2. Printing a List with Commas
  processing multiple elements : 4.11. Processing Multiple Elements of an Array
  randomizing element order : 4.17. Randomizing an Array
  reversing elements of : 4.10. Reversing an Array
  unions, intersections, differences : 4.7. Finding Elements in One Array but Not Another
  words program (example) : 4.18. Program: words
loader program (example) : 15.17. Removing the DOS Shell Window with Windows Perl/Tk
loading modules : (see modules)
local( )
  10.13. Saving Global Values
  10.14. Redefining a Function
  16.16. Temporarily Overriding a Signal Handler
locale settings : 6.12. Honoring Locale Settings in Regular Expressions
localizing functions : 10.14. Redefining a Function
localtime( )
  3.0. Introduction
  3.8. Printing a Date
lockarea program : 7.22. Program: lockarea
locking
  blocking signals : 16.20. Blocking Signals
  DBK files : 14.5. Locking DBM Files
  files
    7.11. Locking a File
    7.21. Program: netlock
  region-specific locks : 7.22. Program: lockarea
log files (web server)
  19.0. Introduction
  20.12. Parsing a Web Server Log File
  processing : 20.13. Processing Server Logs
log( ) : 2.13. Taking Logarithms
log10( ) : 2.13. Taking Logarithms
log_base( ) (example) : 2.13. Taking Logarithms
logarithms : 2.13. Taking Logarithms
Logfile::Apache : 20.13. Processing Server Logs
logical functionality in patterns : 6.17. Expressing AND, OR, and NOT in a Single Pattern
login sessions : 15.0. Introduction
logn( ) (Math::Complex) : 2.13. Taking Logarithms
loop variables : 4.4. Doing Something with Every Element in a List
lowercase program (example) : 7.7. Writing a Filter
lowercase, converting to uppercase : 1.9. Controlling Case
lst program : 9.12. Program: lst
lvaluable functions : 1.1. Accessing Substrings
LWP modules : 20.0. Introduction
  extracting HTML tags : 20.6. Extracting or Removing HTML Tags
  LWP::Heuristic module : 20.1. Fetching a URL from a Perl Script
  LWP::Request module : 20.1. Fetching a URL from a Perl Script
  LWP::Response module : 20.1. Fetching a URL from a Perl Script
  LWP::RobotUA module : 20.11. Creating a Robot
  LWP::Simple module : 20.1. Fetching a URL from a Perl Script
    mirroring web pages : 20.10. Mirroring Web Pages
  LWP::UserAgent module : 20.1. Fetching a URL from a Perl Script

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