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package String::Util; |
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use strict; |
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use warnings; |
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use Carp; |
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use 5.014; |
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# version |
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our $VERSION = '1.32'; |
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#------------------------------------------------------------------------------ |
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# opening POD |
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# |
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=head1 NAME |
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String::Util -- String processing utility functions |
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=head1 DESCRIPTION |
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String::Util provides a collection of small, handy functions for processing |
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strings in various ways. |
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=head1 INSTALLATION |
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cpanm String::Util |
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=head1 USAGE |
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No functions are exported by default, they must be specified: |
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use String::Util qw(trim eqq contains) |
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alternately you can use C<:all> to export B of the functions |
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use String::Util qw(:all) |
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=head1 FUNCTIONS |
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=cut |
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# |
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# opening POD |
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#------------------------------------------------------------------------------ |
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#------------------------------------------------------------------------------ |
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# export |
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# |
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use base 'Exporter'; |
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use vars qw[@EXPORT_OK %EXPORT_TAGS]; |
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# the following functions accept a value and return a modified version of |
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# that value |
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push @EXPORT_OK, qw[ |
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collapse crunch htmlesc trim ltrim |
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rtrim define repeat unquote no_space |
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nospace fullchomp randcrypt jsquote cellfill |
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crunchlines file_get_contents |
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]; |
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# the following functions return true or false based on their input |
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push @EXPORT_OK, qw[ |
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hascontent nocontent eqq equndef neqq neundef |
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startswith endswith contains sanitize |
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]; |
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# the following function returns a random string of some type |
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push @EXPORT_OK, qw[ randword ]; |
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# the following function returns the unicode values of a string |
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push @EXPORT_OK, qw[ ords deords ]; |
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%EXPORT_TAGS = ('all' => [@EXPORT_OK]); |
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# |
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# export |
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#------------------------------------------------------------------------------ |
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#------------------------------------------------------------------------------ |
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# collapse |
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# |
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=head2 collapse($string) |
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C collapses all whitespace in the string down to single spaces. |
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Also removes all leading and trailing whitespace. Undefined input results in |
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undefined output. |
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B C is an alias to this function. It is considered deprecated. |
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It may be removed in future versions. |
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$var = collapse(" Hello world! "); # "Hello world!" |
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=cut |
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sub collapse { |
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my ($val) = @_; |
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if (defined $val) { |
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$val =~ s|^\s+||s; |
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$val =~ s|\s+$||s; |
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$val =~ s|\s+| |sg; |
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} |
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return $val; |
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} |
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sub crunch { |
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return collapse(@_); |
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} |
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# |
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# collapse |
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#------------------------------------------------------------------------------ |
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#------------------------------------------------------------------------------ |
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# hascontent |
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# |
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=head2 hascontent($scalar), nocontent($scalar) |
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hascontent() returns true if the given argument is defined and contains |
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something besides whitespace. |
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An undefined value returns false. An empty string returns false. A value |
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containing nothing but whitespace (spaces, tabs, carriage returns, newlines, |
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backspace) returns false. A string containing any other characters (including |
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zero) returns true. |
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C returns the negation of C. |
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$var = hascontent(""); # False |
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$var = hascontent(" "); # False |
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$var = hascontent("a"); # True |
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$var = nocontent(""); # True |
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$var = nocontent("a"); # False |
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=cut |
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sub hascontent { |
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my $val = shift(); |
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if (!defined($val)) { |
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return 0; |
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} |
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# If there are ANY non-space characters in it |
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if ($val =~ m|\S|s) { |
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return 1; |
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} |
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return 0; |
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} |
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sub nocontent { |
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my $str = shift(); |
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# nocontent() is just the inverse to hascontent() |
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my $ret = !(hascontent($str)); |
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return $ret; |
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} |
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# |
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# hascontent |
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#------------------------------------------------------------------------------ |
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#------------------------------------------------------------------------------ |
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# trim |
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# |
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=head2 trim($string), ltrim($string), rtrim($string) |
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Returns the string with all leading and trailing whitespace removed. |
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Trim on undef returns "". |
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$var = trim(" my string "); # "my string" |
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ltrim() trims B whitespace only. |
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rtrim() trims B whitespace only. |
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=cut |
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sub trim { |
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my $s = shift(); |
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if (!defined($s)) { |
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return undef; |
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} |
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$s =~ s/^\s*//u; |
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$s =~ s/\s*$//u; |
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return $s; |
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} |
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# |
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# trim |
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#------------------------------------------------------------------------------ |
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#------------------------------------------------------------------------------ |
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# ltrim, rtrim |
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# |
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211
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sub ltrim { |
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my $s = shift(); |
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if (!defined($s)) { |
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return undef; |
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} |
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$s =~ s/^\s*//u; |
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220
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1
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return $s; |
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} |
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223
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sub rtrim { |
224
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2
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1
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my $s = shift(); |
225
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226
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2
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100
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if (!defined($s)) { |
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return undef; |
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} |
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230
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1
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9
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$s =~ s/\s*$//u; |
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232
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1
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4
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return $s; |
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} |
234
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235
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# |
236
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# ltrim, rtrim |
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#------------------------------------------------------------------------------ |
238
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239
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240
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241
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#------------------------------------------------------------------------------ |
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# no_space |
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# |
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=head2 nospace($string) |
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Removes B whitespace characters from the given string. This includes spaces |
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between words. |
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$var = nospace(" Hello World! "); # "HelloWorld!" |
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=cut |
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sub no_space { |
255
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return nospace(@_); |
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} |
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# alias nospace to no_space |
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sub nospace { |
260
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my $val = shift(); |
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if (defined $val) { |
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$val =~ s|\s+||gs; |
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} |
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return $val; |
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} |
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# |
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# no_space |
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#------------------------------------------------------------------------------ |
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#------------------------------------------------------------------------------ |
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# htmlesc |
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# |
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=head2 htmlesc($string) |
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Formats a string for literal output in HTML. An undefined value is returned as |
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an empty string. |
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htmlesc() is very similar to CGI.pm's escapeHTML. However, there are a few |
285
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differences. htmlesc() changes an undefined value to an empty string, whereas |
286
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escapeHTML() returns undefs as undefs. |
287
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288
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=cut |
289
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290
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sub htmlesc { |
291
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2
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2
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1
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5
|
my ($val) = @_; |
292
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293
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2
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100
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7
|
if (defined $val) { |
294
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1
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5
|
$val =~ s|\&|&|g; |
295
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1
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4
|
$val =~ s|\"|"|g; |
296
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1
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3
|
$val =~ s|\<|<|g; |
297
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1
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3
|
$val =~ s|\>|>|g; |
298
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} else { |
299
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1
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2
|
$val = ''; |
300
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} |
301
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302
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2
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7
|
return $val; |
303
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} |
304
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# |
305
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# htmlesc |
306
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#------------------------------------------------------------------------------ |
307
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308
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309
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#------------------------------------------------------------------------------ |
310
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# cellfill |
311
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# |
312
|
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313
|
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|
|
sub cellfill{ |
314
|
0
|
|
|
0
|
0
|
0
|
my ($val) = @_; |
315
|
|
|
|
|
|
|
|
316
|
0
|
|
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|
|
0
|
carp("cellfill() is deprecated and will be removed in future versions"); |
317
|
|
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|
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|
|
318
|
0
|
0
|
|
|
|
0
|
if (hascontent($val)) { |
319
|
0
|
|
|
|
|
0
|
$val = htmlesc($val); |
320
|
|
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|
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|
|
} else { |
321
|
0
|
|
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|
0
|
$val = ' '; |
322
|
|
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|
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|
|
} |
323
|
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324
|
0
|
|
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|
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0
|
return $val; |
325
|
|
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|
|
} |
326
|
|
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|
|
# |
327
|
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|
|
|
|
# cellfill |
328
|
|
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|
|
|
|
#------------------------------------------------------------------------------ |
329
|
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|
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|
|
330
|
|
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|
331
|
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|
|
#------------------------------------------------------------------------------ |
332
|
|
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|
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|
|
# jsquote |
333
|
|
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|
|
|
|
# |
334
|
|
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|
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|
|
335
|
|
|
|
|
|
|
=head2 jsquote($string) |
336
|
|
|
|
|
|
|
|
337
|
|
|
|
|
|
|
Escapes and quotes a string for use in JavaScript. Escapes single quotes and |
338
|
|
|
|
|
|
|
surrounds the string in single quotes. Returns the modified string. |
339
|
|
|
|
|
|
|
|
340
|
|
|
|
|
|
|
=cut |
341
|
|
|
|
|
|
|
|
342
|
|
|
|
|
|
|
sub jsquote { |
343
|
1
|
|
|
1
|
1
|
2
|
my ($str) = @_; |
344
|
|
|
|
|
|
|
|
345
|
1
|
50
|
|
|
|
5
|
if (!defined($str)) { |
346
|
0
|
|
|
|
|
0
|
return undef; |
347
|
|
|
|
|
|
|
} |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
# Escape single quotes. |
350
|
1
|
|
|
|
|
5
|
$str =~ s|'|\\'|gs; |
351
|
|
|
|
|
|
|
|
352
|
|
|
|
|
|
|
# Break up anything that looks like a closing HTML tag. This modification |
353
|
|
|
|
|
|
|
# is necessary in an HTML web page. It is unnecessary but harmless if the |
354
|
|
|
|
|
|
|
# output is used in a JavaScript document. |
355
|
1
|
|
|
|
|
5
|
$str =~ s||<' + '/|gs; |
356
|
|
|
|
|
|
|
|
357
|
|
|
|
|
|
|
# break up newlines |
358
|
1
|
|
|
|
|
3
|
$str =~ s|\n|\\n|gs; |
359
|
|
|
|
|
|
|
|
360
|
|
|
|
|
|
|
# surround in quotes |
361
|
1
|
|
|
|
|
3
|
$str = qq|'$str'|; |
362
|
|
|
|
|
|
|
|
363
|
|
|
|
|
|
|
# return |
364
|
1
|
|
|
|
|
4
|
return $str; |
365
|
|
|
|
|
|
|
} |
366
|
|
|
|
|
|
|
# |
367
|
|
|
|
|
|
|
# jsquote |
368
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
369
|
|
|
|
|
|
|
|
370
|
|
|
|
|
|
|
|
371
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
372
|
|
|
|
|
|
|
# unquote |
373
|
|
|
|
|
|
|
# |
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
=head2 unquote($string) |
376
|
|
|
|
|
|
|
|
377
|
|
|
|
|
|
|
If the given string starts and ends with quotes, removes them. Recognizes |
378
|
|
|
|
|
|
|
single quotes and double quotes. The value must begin and end with same type |
379
|
|
|
|
|
|
|
of quotes or nothing is done to the value. Undef input results in undef output. |
380
|
|
|
|
|
|
|
Some examples and what they return: |
381
|
|
|
|
|
|
|
|
382
|
|
|
|
|
|
|
unquote(q|'Hendrix'|); # Hendrix |
383
|
|
|
|
|
|
|
unquote(q|"Hendrix"|); # Hendrix |
384
|
|
|
|
|
|
|
unquote(q|Hendrix|); # Hendrix |
385
|
|
|
|
|
|
|
unquote(q|"Hendrix'|); # "Hendrix' |
386
|
|
|
|
|
|
|
unquote(q|O'Sullivan|); # O'Sullivan |
387
|
|
|
|
|
|
|
|
388
|
|
|
|
|
|
|
B braces |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
If the braces option is true, surrounding braces such as [] and {} are also |
391
|
|
|
|
|
|
|
removed. Some examples: |
392
|
|
|
|
|
|
|
|
393
|
|
|
|
|
|
|
unquote(q|[Janis]|, braces=>1); # Janis |
394
|
|
|
|
|
|
|
unquote(q|{Janis}|, braces=>1); # Janis |
395
|
|
|
|
|
|
|
unquote(q|(Janis)|, braces=>1); # Janis |
396
|
|
|
|
|
|
|
|
397
|
|
|
|
|
|
|
=cut |
398
|
|
|
|
|
|
|
|
399
|
|
|
|
|
|
|
sub unquote { |
400
|
4
|
|
|
4
|
1
|
11
|
my ($val, %opts) = @_; |
401
|
|
|
|
|
|
|
|
402
|
4
|
50
|
|
|
|
12
|
if (defined $val) { |
403
|
4
|
100
|
66
|
|
|
36
|
my $found = $val =~ s|^\`(.*)\`$|$1|s or |
404
|
|
|
|
|
|
|
$val =~ s|^\"(.*)\"$|$1|s or |
405
|
|
|
|
|
|
|
$val =~ s|^\'(.*)\'$|$1|s; |
406
|
|
|
|
|
|
|
|
407
|
4
|
50
|
33
|
|
|
17
|
if ($opts{'braces'} && ! $found) { |
408
|
0
|
0
|
0
|
|
|
0
|
$val =~ s|^\[(.*)\]$|$1|s or |
409
|
|
|
|
|
|
|
$val =~ s|^\((.*)\)$|$1|s or |
410
|
|
|
|
|
|
|
$val =~ s|^\{(.*)\}$|$1|s; |
411
|
|
|
|
|
|
|
} |
412
|
|
|
|
|
|
|
} |
413
|
|
|
|
|
|
|
|
414
|
4
|
|
|
|
|
38
|
return $val; |
415
|
|
|
|
|
|
|
} |
416
|
|
|
|
|
|
|
# |
417
|
|
|
|
|
|
|
# unquote |
418
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
419
|
|
|
|
|
|
|
|
420
|
|
|
|
|
|
|
|
421
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
422
|
|
|
|
|
|
|
# define |
423
|
|
|
|
|
|
|
# |
424
|
|
|
|
|
|
|
|
425
|
|
|
|
|
|
|
sub define { |
426
|
0
|
|
|
0
|
0
|
0
|
carp("define() is deprecated and may be removed in future version"); |
427
|
|
|
|
|
|
|
|
428
|
0
|
|
|
|
|
0
|
my ($val) = @_; |
429
|
|
|
|
|
|
|
|
430
|
|
|
|
|
|
|
# if overloaded object, get return value and |
431
|
|
|
|
|
|
|
# concatenate with string (which defines it). |
432
|
0
|
0
|
0
|
|
|
0
|
if (ref($val) && overload::Overloaded($val)) { |
433
|
0
|
|
|
|
|
0
|
local $^W = 0; |
434
|
0
|
|
|
|
|
0
|
$val = $val . ''; |
435
|
|
|
|
|
|
|
} |
436
|
|
|
|
|
|
|
|
437
|
0
|
0
|
|
|
|
0
|
defined($val) or $val = ''; |
438
|
0
|
|
|
|
|
0
|
return $val; |
439
|
|
|
|
|
|
|
} |
440
|
|
|
|
|
|
|
# |
441
|
|
|
|
|
|
|
# define |
442
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
443
|
|
|
|
|
|
|
|
444
|
|
|
|
|
|
|
|
445
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
446
|
|
|
|
|
|
|
# repeat |
447
|
|
|
|
|
|
|
# |
448
|
|
|
|
|
|
|
|
449
|
|
|
|
|
|
|
=head2 repeat($string, $count) |
450
|
|
|
|
|
|
|
|
451
|
|
|
|
|
|
|
Returns the given string repeated the given number of times. The following |
452
|
|
|
|
|
|
|
command outputs "Fred" three times: |
453
|
|
|
|
|
|
|
|
454
|
|
|
|
|
|
|
print repeat('Fred', 3), "\n"; |
455
|
|
|
|
|
|
|
|
456
|
|
|
|
|
|
|
Note that repeat() was created a long time based on a misunderstanding of how |
457
|
|
|
|
|
|
|
the perl operator 'x' works. The following command using 'x' would perform |
458
|
|
|
|
|
|
|
exactly the same as the above command. |
459
|
|
|
|
|
|
|
|
460
|
|
|
|
|
|
|
print 'Fred' x 3, "\n"; |
461
|
|
|
|
|
|
|
|
462
|
|
|
|
|
|
|
Use whichever you prefer. |
463
|
|
|
|
|
|
|
|
464
|
|
|
|
|
|
|
=cut |
465
|
|
|
|
|
|
|
|
466
|
|
|
|
|
|
|
sub repeat { |
467
|
0
|
|
|
0
|
1
|
0
|
my ($val, $count) = @_; |
468
|
0
|
|
|
|
|
0
|
return ($val x int($count)); |
469
|
|
|
|
|
|
|
} |
470
|
|
|
|
|
|
|
# |
471
|
|
|
|
|
|
|
# repeat |
472
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
473
|
|
|
|
|
|
|
|
474
|
|
|
|
|
|
|
|
475
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
476
|
|
|
|
|
|
|
# randword |
477
|
|
|
|
|
|
|
# |
478
|
|
|
|
|
|
|
|
479
|
|
|
|
|
|
|
=head2 randword($length, %options) |
480
|
|
|
|
|
|
|
|
481
|
|
|
|
|
|
|
Returns a random string of characters. String will not contain any vowels (to |
482
|
|
|
|
|
|
|
avoid distracting dirty words). First argument is the length of the return |
483
|
|
|
|
|
|
|
string. So this code: |
484
|
|
|
|
|
|
|
|
485
|
|
|
|
|
|
|
foreach my $idx (1..3) { |
486
|
|
|
|
|
|
|
print randword(4), "\n"; |
487
|
|
|
|
|
|
|
} |
488
|
|
|
|
|
|
|
|
489
|
|
|
|
|
|
|
would output something like this: |
490
|
|
|
|
|
|
|
|
491
|
|
|
|
|
|
|
kBGV |
492
|
|
|
|
|
|
|
NCWB |
493
|
|
|
|
|
|
|
3tHJ |
494
|
|
|
|
|
|
|
|
495
|
|
|
|
|
|
|
If the string 'dictionary' is sent instead of an integer, then a word is |
496
|
|
|
|
|
|
|
randomly selected from a dictionary file. By default, the dictionary file |
497
|
|
|
|
|
|
|
is assumed to be at /usr/share/dict/words and the shuf command is used to |
498
|
|
|
|
|
|
|
pull out a word. The hash %String::Util::PATHS sets the paths to the |
499
|
|
|
|
|
|
|
dictionary file and the shuf executable. Modify that hash to change the paths. |
500
|
|
|
|
|
|
|
So this code: |
501
|
|
|
|
|
|
|
|
502
|
|
|
|
|
|
|
foreach my $idx (1..3) { |
503
|
|
|
|
|
|
|
print randword('dictionary'), "\n"; |
504
|
|
|
|
|
|
|
} |
505
|
|
|
|
|
|
|
|
506
|
|
|
|
|
|
|
would output something like this: |
507
|
|
|
|
|
|
|
|
508
|
|
|
|
|
|
|
mustache |
509
|
|
|
|
|
|
|
fronds |
510
|
|
|
|
|
|
|
browning |
511
|
|
|
|
|
|
|
|
512
|
|
|
|
|
|
|
B alpha |
513
|
|
|
|
|
|
|
|
514
|
|
|
|
|
|
|
If the alpha option is true, only alphabetic characters are returned, no |
515
|
|
|
|
|
|
|
numerals. For example, this code: |
516
|
|
|
|
|
|
|
|
517
|
|
|
|
|
|
|
foreach my $idx (1..3) { |
518
|
|
|
|
|
|
|
print randword(4, alpha=>1), "\n"; |
519
|
|
|
|
|
|
|
} |
520
|
|
|
|
|
|
|
|
521
|
|
|
|
|
|
|
would output something like this: |
522
|
|
|
|
|
|
|
|
523
|
|
|
|
|
|
|
qrML |
524
|
|
|
|
|
|
|
wmWf |
525
|
|
|
|
|
|
|
QGvF |
526
|
|
|
|
|
|
|
|
527
|
|
|
|
|
|
|
B numerals |
528
|
|
|
|
|
|
|
|
529
|
|
|
|
|
|
|
If the numerals option is true, only numerals are returned, no alphabetic |
530
|
|
|
|
|
|
|
characters. So this code: |
531
|
|
|
|
|
|
|
|
532
|
|
|
|
|
|
|
foreach my $idx (1..3) { |
533
|
|
|
|
|
|
|
print randword(4, numerals=>1), "\n"; |
534
|
|
|
|
|
|
|
} |
535
|
|
|
|
|
|
|
|
536
|
|
|
|
|
|
|
would output something like this: |
537
|
|
|
|
|
|
|
|
538
|
|
|
|
|
|
|
3981 |
539
|
|
|
|
|
|
|
4734 |
540
|
|
|
|
|
|
|
2657 |
541
|
|
|
|
|
|
|
|
542
|
|
|
|
|
|
|
B strip_vowels |
543
|
|
|
|
|
|
|
|
544
|
|
|
|
|
|
|
This option is true by default. If true, vowels are not included in the |
545
|
|
|
|
|
|
|
returned random string. So this code: |
546
|
|
|
|
|
|
|
|
547
|
|
|
|
|
|
|
foreach my $idx (1..3) { |
548
|
|
|
|
|
|
|
print randword(4, strip_vowels=>1), "\n"; |
549
|
|
|
|
|
|
|
} |
550
|
|
|
|
|
|
|
|
551
|
|
|
|
|
|
|
would output something like this: |
552
|
|
|
|
|
|
|
|
553
|
|
|
|
|
|
|
Sk3v |
554
|
|
|
|
|
|
|
pV5z |
555
|
|
|
|
|
|
|
XhSX |
556
|
|
|
|
|
|
|
|
557
|
|
|
|
|
|
|
=cut |
558
|
|
|
|
|
|
|
|
559
|
|
|
|
|
|
|
# path information for WC |
560
|
|
|
|
|
|
|
our %PATHS = ( |
561
|
|
|
|
|
|
|
wc => '/usr/bin/wc', |
562
|
|
|
|
|
|
|
shuf => '/usr/bin/shuf', |
563
|
|
|
|
|
|
|
words => '/usr/share/dict/words', |
564
|
|
|
|
|
|
|
head => '/usr/bin/head', |
565
|
|
|
|
|
|
|
tail => '/usr/bin/tail', |
566
|
|
|
|
|
|
|
); |
567
|
|
|
|
|
|
|
|
568
|
|
|
|
|
|
|
sub randword { |
569
|
1
|
|
|
1
|
1
|
4
|
my ($count, %opts) = @_; |
570
|
1
|
|
|
|
|
3
|
my ($rv, $char, @chars, $paths); |
571
|
1
|
|
|
|
|
2
|
$rv = ''; |
572
|
|
|
|
|
|
|
|
573
|
|
|
|
|
|
|
# check syntax |
574
|
1
|
50
|
|
|
|
4
|
defined($count) or croak 'syntax: randword($count)'; |
575
|
|
|
|
|
|
|
|
576
|
|
|
|
|
|
|
# dictionary word |
577
|
1
|
50
|
|
|
|
5
|
if ($count =~ m|^dict|si) { |
578
|
|
|
|
|
|
|
# loop until acceptable word is found |
579
|
|
|
|
|
|
|
DICTIONARY: |
580
|
0
|
|
|
|
|
0
|
while (1) { |
581
|
0
|
|
|
|
|
0
|
my ($cmd, $line_count, $line_num, $word); |
582
|
|
|
|
|
|
|
|
583
|
|
|
|
|
|
|
# use Encode module |
584
|
0
|
|
|
|
|
0
|
require Encode; |
585
|
|
|
|
|
|
|
|
586
|
|
|
|
|
|
|
# get line count |
587
|
0
|
|
|
|
|
0
|
$cmd = qq|$PATHS{'wc'} -l "$PATHS{'words'}"|; |
588
|
0
|
|
|
|
|
0
|
($line_count) = `$cmd`; |
589
|
0
|
|
|
|
|
0
|
$line_count =~ s|\s.*||s; |
590
|
|
|
|
|
|
|
|
591
|
|
|
|
|
|
|
# get random line |
592
|
0
|
|
|
|
|
0
|
$line_num = rand($line_count); |
593
|
|
|
|
|
|
|
|
594
|
|
|
|
|
|
|
# untaint line number |
595
|
0
|
0
|
|
|
|
0
|
unless ($line_num =~ m|^([0-9]+)$|s) { die "invalid line number: $line_num" } |
|
0
|
|
|
|
|
0
|
|
596
|
0
|
|
|
|
|
0
|
$line_num = $1; |
597
|
|
|
|
|
|
|
|
598
|
|
|
|
|
|
|
# get random word |
599
|
0
|
|
|
|
|
0
|
$cmd = qq[$PATHS{'head'} -$line_num "$PATHS{'words'}" | $PATHS{'tail'} -1]; |
600
|
0
|
|
|
|
|
0
|
($word) = `$cmd`; |
601
|
0
|
|
|
|
|
0
|
$word =~ s|\s.*||si; |
602
|
0
|
|
|
|
|
0
|
$word =~ s|'.*||si; |
603
|
0
|
|
|
|
|
0
|
$word = lc($word); |
604
|
|
|
|
|
|
|
|
605
|
|
|
|
|
|
|
# only allow words that are all letters |
606
|
0
|
0
|
|
|
|
0
|
if ($opts{'letters_only'}) { |
607
|
0
|
0
|
|
|
|
0
|
unless ($word =~ m|^[a-z]+$|s) |
608
|
0
|
|
|
|
|
0
|
{ next DICTIONARY } |
609
|
|
|
|
|
|
|
} |
610
|
|
|
|
|
|
|
|
611
|
|
|
|
|
|
|
# check for max length |
612
|
0
|
0
|
|
|
|
0
|
if ($opts{'maxlength'}) { |
613
|
0
|
0
|
|
|
|
0
|
if ( length($word) > $opts{'maxlength'} ) |
614
|
0
|
|
|
|
|
0
|
{ next DICTIONARY } |
615
|
|
|
|
|
|
|
} |
616
|
|
|
|
|
|
|
|
617
|
|
|
|
|
|
|
# encode unless specifically opted not to do so |
618
|
0
|
0
|
0
|
|
|
0
|
unless ( defined($opts{'encode'}) && (! $opts{'encode'}) ) |
619
|
0
|
|
|
|
|
0
|
{ $word = Encode::encode_utf8($word) } |
620
|
|
|
|
|
|
|
|
621
|
|
|
|
|
|
|
# return |
622
|
0
|
|
|
|
|
0
|
return $word; |
623
|
|
|
|
|
|
|
} |
624
|
|
|
|
|
|
|
} |
625
|
|
|
|
|
|
|
|
626
|
|
|
|
|
|
|
# alpha only |
627
|
1
|
50
|
|
|
|
4
|
if ($opts{'alpha'}) |
628
|
0
|
|
|
|
|
0
|
{ @chars = ('a' .. 'z', 'A' .. 'Z') } |
629
|
|
|
|
|
|
|
|
630
|
|
|
|
|
|
|
# else alpha and numeral |
631
|
|
|
|
|
|
|
else |
632
|
1
|
|
|
|
|
14
|
{ @chars = ('a' .. 'z', 'A' .. 'Z', '0' .. '9') } |
633
|
|
|
|
|
|
|
|
634
|
|
|
|
|
|
|
# defaults |
635
|
1
|
50
|
|
|
|
6
|
defined($opts{'strip_vowels'}) or $opts{'strip_vowels'} = 1; |
636
|
|
|
|
|
|
|
|
637
|
1
|
|
|
|
|
4
|
while (length($rv) < $count) { |
638
|
23
|
|
|
|
|
67
|
$char = rand(); |
639
|
|
|
|
|
|
|
|
640
|
|
|
|
|
|
|
# numerals only |
641
|
23
|
50
|
|
|
|
42
|
if ($opts{'numerals'}) { |
642
|
0
|
|
|
|
|
0
|
$char =~ s|^0.||; |
643
|
0
|
|
|
|
|
0
|
$char =~ s|\D||g; |
644
|
|
|
|
|
|
|
} |
645
|
|
|
|
|
|
|
|
646
|
|
|
|
|
|
|
# character random word |
647
|
|
|
|
|
|
|
else { |
648
|
23
|
|
|
|
|
37
|
$char = int( $char * ($#chars + 1) ); |
649
|
23
|
|
|
|
|
37
|
$char = $chars[$char]; |
650
|
23
|
100
|
66
|
|
|
73
|
next if($opts{'strip_vowels'} && $char =~ m/[aeiouy]/i); |
651
|
|
|
|
|
|
|
} |
652
|
|
|
|
|
|
|
|
653
|
20
|
|
|
|
|
35
|
$rv .= $char; |
654
|
|
|
|
|
|
|
} |
655
|
|
|
|
|
|
|
|
656
|
1
|
|
|
|
|
9
|
return substr($rv, 0, $count); |
657
|
|
|
|
|
|
|
} |
658
|
|
|
|
|
|
|
# |
659
|
|
|
|
|
|
|
# randword |
660
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
661
|
|
|
|
|
|
|
|
662
|
|
|
|
|
|
|
|
663
|
|
|
|
|
|
|
|
664
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
665
|
|
|
|
|
|
|
# eqq |
666
|
|
|
|
|
|
|
# formerly equndef |
667
|
|
|
|
|
|
|
# |
668
|
|
|
|
|
|
|
|
669
|
|
|
|
|
|
|
=head2 eqq($scalar1, $scalar2) |
670
|
|
|
|
|
|
|
|
671
|
|
|
|
|
|
|
Returns true if the two given values are equal. Also returns true if both |
672
|
|
|
|
|
|
|
are undef. If only one is undef, or if they are both defined but different, |
673
|
|
|
|
|
|
|
returns false. Here are some examples and what they return. |
674
|
|
|
|
|
|
|
|
675
|
|
|
|
|
|
|
$var = eqq('x', 'x'); # True |
676
|
|
|
|
|
|
|
$var = eqq('x', undef); # False |
677
|
|
|
|
|
|
|
$var = eqq(undef, undef); # True |
678
|
|
|
|
|
|
|
|
679
|
|
|
|
|
|
|
B equndef() is an alias to this function. It is considered deprecated. |
680
|
|
|
|
|
|
|
It may be removed in future versions. |
681
|
|
|
|
|
|
|
|
682
|
|
|
|
|
|
|
=cut |
683
|
|
|
|
|
|
|
|
684
|
|
|
|
|
|
|
# alias equndef to eqq |
685
|
4
|
|
|
4
|
0
|
12
|
sub equndef { return eqq(@_) } |
686
|
|
|
|
|
|
|
|
687
|
|
|
|
|
|
|
sub eqq { |
688
|
8
|
|
|
8
|
1
|
17
|
my ($str1, $str2) = @_; |
689
|
|
|
|
|
|
|
|
690
|
|
|
|
|
|
|
# if both defined |
691
|
8
|
100
|
100
|
|
|
33
|
if ( defined($str1) && defined($str2) ) { |
692
|
4
|
|
|
|
|
22
|
return $str1 eq $str2 |
693
|
|
|
|
|
|
|
} |
694
|
|
|
|
|
|
|
|
695
|
|
|
|
|
|
|
# if neither are defined |
696
|
4
|
50
|
66
|
|
|
15
|
if ( (!defined($str1)) && (!defined($str2)) ) { |
697
|
2
|
|
|
|
|
9
|
return 1 |
698
|
|
|
|
|
|
|
} |
699
|
|
|
|
|
|
|
|
700
|
|
|
|
|
|
|
# only one is defined, so return false |
701
|
2
|
|
|
|
|
14
|
return 0; |
702
|
|
|
|
|
|
|
} |
703
|
|
|
|
|
|
|
# |
704
|
|
|
|
|
|
|
# eqq |
705
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
706
|
|
|
|
|
|
|
|
707
|
|
|
|
|
|
|
|
708
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
709
|
|
|
|
|
|
|
# neqq |
710
|
|
|
|
|
|
|
# formerly neundef |
711
|
|
|
|
|
|
|
# |
712
|
|
|
|
|
|
|
|
713
|
|
|
|
|
|
|
=head2 neqq($scalar1, $scalar2) |
714
|
|
|
|
|
|
|
|
715
|
|
|
|
|
|
|
The opposite of neqq, returns true if the two values are *not* the same. |
716
|
|
|
|
|
|
|
Here are some examples and what they return. |
717
|
|
|
|
|
|
|
|
718
|
|
|
|
|
|
|
$var = neqq('x', 'x'); # False |
719
|
|
|
|
|
|
|
$var = neqq('x', undef); # True |
720
|
|
|
|
|
|
|
$var = neqq(undef, undef); # False |
721
|
|
|
|
|
|
|
|
722
|
|
|
|
|
|
|
B neundef() is an alias to this function. It is considered deprecated. |
723
|
|
|
|
|
|
|
It may be removed in future versions. |
724
|
|
|
|
|
|
|
|
725
|
|
|
|
|
|
|
=cut |
726
|
|
|
|
|
|
|
|
727
|
|
|
|
|
|
|
sub neundef { |
728
|
4
|
100
|
|
4
|
0
|
9
|
return eqq(@_) ? 0 : 1; |
729
|
|
|
|
|
|
|
} |
730
|
|
|
|
|
|
|
|
731
|
|
|
|
|
|
|
sub neqq { |
732
|
0
|
0
|
|
0
|
1
|
0
|
return eqq(@_) ? 0 : 1; |
733
|
|
|
|
|
|
|
} |
734
|
|
|
|
|
|
|
# |
735
|
|
|
|
|
|
|
# neqq |
736
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
737
|
|
|
|
|
|
|
|
738
|
|
|
|
|
|
|
|
739
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
740
|
|
|
|
|
|
|
# fullchomp |
741
|
|
|
|
|
|
|
# |
742
|
|
|
|
|
|
|
|
743
|
|
|
|
|
|
|
sub fullchomp { |
744
|
0
|
|
|
0
|
0
|
0
|
carp("fullchomp() is deprecated and may be removed in future versions"); |
745
|
|
|
|
|
|
|
|
746
|
0
|
|
|
|
|
0
|
my ($line) = @_; |
747
|
0
|
0
|
|
|
|
0
|
defined($line) and $line =~ s|[\r\n]+$||s; |
748
|
0
|
0
|
|
|
|
0
|
defined(wantarray) and return $line; |
749
|
0
|
|
|
|
|
0
|
$_[0] = $line; |
750
|
|
|
|
|
|
|
} |
751
|
|
|
|
|
|
|
# |
752
|
|
|
|
|
|
|
# fullchomp |
753
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
754
|
|
|
|
|
|
|
|
755
|
|
|
|
|
|
|
|
756
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
757
|
|
|
|
|
|
|
# randcrypt |
758
|
|
|
|
|
|
|
# |
759
|
|
|
|
|
|
|
|
760
|
|
|
|
|
|
|
sub randcrypt { |
761
|
0
|
|
|
0
|
0
|
0
|
carp("randcrypt() is deprecated and may be removed in future versions"); |
762
|
|
|
|
|
|
|
|
763
|
0
|
|
|
|
|
0
|
my $pw = shift(); |
764
|
0
|
|
|
|
|
0
|
my $ret; |
765
|
0
|
|
|
|
|
0
|
$ret = crypt($pw, randword(2)); |
766
|
|
|
|
|
|
|
|
767
|
0
|
|
|
|
|
0
|
return $ret; |
768
|
|
|
|
|
|
|
} |
769
|
|
|
|
|
|
|
# |
770
|
|
|
|
|
|
|
# randcrypt |
771
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
772
|
|
|
|
|
|
|
|
773
|
|
|
|
|
|
|
|
774
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
775
|
|
|
|
|
|
|
# ords |
776
|
|
|
|
|
|
|
# |
777
|
|
|
|
|
|
|
|
778
|
|
|
|
|
|
|
=head2 ords($string) |
779
|
|
|
|
|
|
|
|
780
|
|
|
|
|
|
|
Returns the given string represented as the ascii value of each character. |
781
|
|
|
|
|
|
|
|
782
|
|
|
|
|
|
|
$var = ords('Hendrix'); # {72}{101}{110}{100}{114}{105}{120} |
783
|
|
|
|
|
|
|
|
784
|
|
|
|
|
|
|
B |
785
|
|
|
|
|
|
|
|
786
|
|
|
|
|
|
|
=over 4 |
787
|
|
|
|
|
|
|
|
788
|
|
|
|
|
|
|
=item * convert_spaces=>[true|false] |
789
|
|
|
|
|
|
|
|
790
|
|
|
|
|
|
|
If convert_spaces is true (which is the default) then spaces are converted to |
791
|
|
|
|
|
|
|
their matching ord values. So, for example, this code: |
792
|
|
|
|
|
|
|
|
793
|
|
|
|
|
|
|
$var = ords('a b', convert_spaces=>1); # {97}{32}{98} |
794
|
|
|
|
|
|
|
|
795
|
|
|
|
|
|
|
This code returns the same thing: |
796
|
|
|
|
|
|
|
|
797
|
|
|
|
|
|
|
$var = ords('a b'); # {97}{32}{98} |
798
|
|
|
|
|
|
|
|
799
|
|
|
|
|
|
|
If convert_spaces is false, then spaces are just returned as spaces. So this |
800
|
|
|
|
|
|
|
code: |
801
|
|
|
|
|
|
|
|
802
|
|
|
|
|
|
|
ords('a b', convert_spaces=>0); # {97} {98} |
803
|
|
|
|
|
|
|
|
804
|
|
|
|
|
|
|
|
805
|
|
|
|
|
|
|
=item * alpha_nums |
806
|
|
|
|
|
|
|
|
807
|
|
|
|
|
|
|
If the alpha_nums option is false, then characters 0-9, a-z, and A-Z are not |
808
|
|
|
|
|
|
|
converted. For example, this code: |
809
|
|
|
|
|
|
|
|
810
|
|
|
|
|
|
|
$var = ords('a=b', alpha_nums=>0); # a{61}b |
811
|
|
|
|
|
|
|
|
812
|
|
|
|
|
|
|
=back |
813
|
|
|
|
|
|
|
|
814
|
|
|
|
|
|
|
=cut |
815
|
|
|
|
|
|
|
|
816
|
|
|
|
|
|
|
sub ords { |
817
|
0
|
|
|
0
|
1
|
0
|
my ($str, %opts) = @_; |
818
|
0
|
|
|
|
|
0
|
my (@rv, $show_chars); |
819
|
|
|
|
|
|
|
|
820
|
|
|
|
|
|
|
# default options |
821
|
0
|
|
|
|
|
0
|
%opts = (convert_spaces=>1, alpha_nums=>1, %opts); |
822
|
|
|
|
|
|
|
|
823
|
|
|
|
|
|
|
# get $show_chars option |
824
|
0
|
|
|
|
|
0
|
$show_chars = $opts{'show_chars'}; |
825
|
|
|
|
|
|
|
|
826
|
|
|
|
|
|
|
# split into individual characters |
827
|
0
|
|
|
|
|
0
|
@rv = split '', $str; |
828
|
|
|
|
|
|
|
|
829
|
|
|
|
|
|
|
# change elements to their unicode numbers |
830
|
|
|
|
|
|
|
CHAR_LOOP: |
831
|
0
|
|
|
|
|
0
|
foreach my $char (@rv) { |
832
|
|
|
|
|
|
|
# don't convert space if called so |
833
|
0
|
0
|
0
|
|
|
0
|
if ( (! $opts{'convert_spaces'}) && ($char =~ m|^\s$|s) ) |
834
|
0
|
|
|
|
|
0
|
{ next CHAR_LOOP } |
835
|
|
|
|
|
|
|
|
836
|
|
|
|
|
|
|
# don't convert alphanums |
837
|
0
|
0
|
|
|
|
0
|
if (! $opts{'alpha_nums'}) { |
838
|
0
|
0
|
|
|
|
0
|
if ( $char =~ m|^[a-z0-9]$|si) { |
839
|
0
|
|
|
|
|
0
|
next CHAR_LOOP; |
840
|
|
|
|
|
|
|
} |
841
|
|
|
|
|
|
|
} |
842
|
|
|
|
|
|
|
|
843
|
0
|
|
|
|
|
0
|
my $rv = '{'; |
844
|
|
|
|
|
|
|
|
845
|
0
|
0
|
|
|
|
0
|
if ($show_chars) |
846
|
0
|
|
|
|
|
0
|
{ $rv .= $char . ':' } |
847
|
|
|
|
|
|
|
|
848
|
0
|
|
|
|
|
0
|
$rv .= ord($char) . '}'; |
849
|
|
|
|
|
|
|
|
850
|
0
|
|
|
|
|
0
|
$char = $rv; |
851
|
|
|
|
|
|
|
} |
852
|
|
|
|
|
|
|
|
853
|
|
|
|
|
|
|
# return words separated by spaces |
854
|
0
|
|
|
|
|
0
|
return join('', @rv); |
855
|
|
|
|
|
|
|
} |
856
|
|
|
|
|
|
|
# |
857
|
|
|
|
|
|
|
# ords |
858
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
859
|
|
|
|
|
|
|
|
860
|
|
|
|
|
|
|
|
861
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
862
|
|
|
|
|
|
|
# deords |
863
|
|
|
|
|
|
|
# |
864
|
|
|
|
|
|
|
|
865
|
|
|
|
|
|
|
=head2 deords($string) |
866
|
|
|
|
|
|
|
|
867
|
|
|
|
|
|
|
Takes the output from ords() and returns the string that original created that |
868
|
|
|
|
|
|
|
output. |
869
|
|
|
|
|
|
|
|
870
|
|
|
|
|
|
|
$var = deords('{72}{101}{110}{100}{114}{105}{120}'); # 'Hendrix' |
871
|
|
|
|
|
|
|
|
872
|
|
|
|
|
|
|
=cut |
873
|
|
|
|
|
|
|
|
874
|
|
|
|
|
|
|
sub deords { |
875
|
0
|
|
|
0
|
1
|
0
|
my ($str) = @_; |
876
|
0
|
|
|
|
|
0
|
my (@tokens, $rv); |
877
|
0
|
|
|
|
|
0
|
$rv = ''; |
878
|
|
|
|
|
|
|
|
879
|
|
|
|
|
|
|
# get tokens |
880
|
0
|
|
|
|
|
0
|
@tokens = split(m|[\{\}]|s, $str); |
881
|
0
|
|
|
|
|
0
|
@tokens = grep {length($_)} @tokens; |
|
0
|
|
|
|
|
0
|
|
882
|
|
|
|
|
|
|
|
883
|
|
|
|
|
|
|
# build return string |
884
|
0
|
|
|
|
|
0
|
foreach my $token (@tokens) { |
885
|
0
|
|
|
|
|
0
|
$rv .= chr($token); |
886
|
|
|
|
|
|
|
} |
887
|
|
|
|
|
|
|
|
888
|
|
|
|
|
|
|
# return |
889
|
0
|
|
|
|
|
0
|
return $rv; |
890
|
|
|
|
|
|
|
} |
891
|
|
|
|
|
|
|
# |
892
|
|
|
|
|
|
|
# deords |
893
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
894
|
|
|
|
|
|
|
|
895
|
|
|
|
|
|
|
=head2 contains($string, $substring) |
896
|
|
|
|
|
|
|
|
897
|
|
|
|
|
|
|
Checks if the string contains substring |
898
|
|
|
|
|
|
|
|
899
|
|
|
|
|
|
|
$var = contains("Hello world", "Hello"); # true |
900
|
|
|
|
|
|
|
$var = contains("Hello world", "llo wor"); # true |
901
|
|
|
|
|
|
|
$var = contains("Hello world", "QQQ"); # false |
902
|
|
|
|
|
|
|
|
903
|
|
|
|
|
|
|
# Also works with grep |
904
|
|
|
|
|
|
|
@arr = grep { contains("cat") } @input; |
905
|
|
|
|
|
|
|
|
906
|
|
|
|
|
|
|
=cut |
907
|
|
|
|
|
|
|
|
908
|
|
|
|
|
|
|
sub contains { |
909
|
5
|
|
|
5
|
1
|
11
|
my ($str, $substr) = @_; |
910
|
|
|
|
|
|
|
|
911
|
5
|
100
|
|
|
|
13
|
if (!defined($str)) { |
912
|
1
|
|
|
|
|
5
|
return undef; |
913
|
|
|
|
|
|
|
} |
914
|
|
|
|
|
|
|
|
915
|
4
|
50
|
|
|
|
9
|
if (!$substr) { |
916
|
0
|
|
|
|
|
0
|
$substr = $str; |
917
|
0
|
|
|
|
|
0
|
$str = $_; |
918
|
|
|
|
|
|
|
} |
919
|
|
|
|
|
|
|
|
920
|
4
|
|
|
|
|
11
|
my $ret = index($str, $substr, 0) != -1; |
921
|
|
|
|
|
|
|
|
922
|
4
|
|
|
|
|
27
|
return $ret; |
923
|
|
|
|
|
|
|
} |
924
|
|
|
|
|
|
|
|
925
|
|
|
|
|
|
|
=head2 startswith($string, $substring) |
926
|
|
|
|
|
|
|
|
927
|
|
|
|
|
|
|
Checks if the string starts with the characters in substring |
928
|
|
|
|
|
|
|
|
929
|
|
|
|
|
|
|
$var = startwith("Hello world", "Hello"); # true |
930
|
|
|
|
|
|
|
$var = startwith("Hello world", "H"); # true |
931
|
|
|
|
|
|
|
$var = startwith("Hello world", "Q"); # false |
932
|
|
|
|
|
|
|
|
933
|
|
|
|
|
|
|
# Also works with grep |
934
|
|
|
|
|
|
|
@arr = grep { startswith("X") } @input; |
935
|
|
|
|
|
|
|
|
936
|
|
|
|
|
|
|
=cut |
937
|
|
|
|
|
|
|
|
938
|
|
|
|
|
|
|
sub startswith { |
939
|
5
|
|
|
5
|
1
|
15
|
my ($str, $substr) = @_; |
940
|
|
|
|
|
|
|
|
941
|
5
|
100
|
|
|
|
11
|
if (!defined($str)) { |
942
|
1
|
|
|
|
|
4
|
return undef; |
943
|
|
|
|
|
|
|
} |
944
|
|
|
|
|
|
|
|
945
|
4
|
50
|
|
|
|
8
|
if (!$substr) { |
946
|
0
|
|
|
|
|
0
|
$substr = $str; |
947
|
0
|
|
|
|
|
0
|
$str = $_; |
948
|
|
|
|
|
|
|
} |
949
|
|
|
|
|
|
|
|
950
|
4
|
|
|
|
|
9
|
my $ret = index($str, $substr, 0) == 0; |
951
|
|
|
|
|
|
|
|
952
|
4
|
|
|
|
|
17
|
return $ret; |
953
|
|
|
|
|
|
|
} |
954
|
|
|
|
|
|
|
|
955
|
|
|
|
|
|
|
=head2 endswith($string, $substring) |
956
|
|
|
|
|
|
|
|
957
|
|
|
|
|
|
|
Checks if the string ends with the characters in substring |
958
|
|
|
|
|
|
|
|
959
|
|
|
|
|
|
|
$var = endswith("Hello world", "world"); # true |
960
|
|
|
|
|
|
|
$var = endswith("Hello world", "d"); # true |
961
|
|
|
|
|
|
|
$var = endswith("Hello world", "QQQ"); # false |
962
|
|
|
|
|
|
|
|
963
|
|
|
|
|
|
|
# Also works with grep |
964
|
|
|
|
|
|
|
@arr = grep { endswith("z") } @input; |
965
|
|
|
|
|
|
|
|
966
|
|
|
|
|
|
|
=cut |
967
|
|
|
|
|
|
|
|
968
|
|
|
|
|
|
|
sub endswith { |
969
|
5
|
|
|
5
|
1
|
14
|
my ($str, $substr) = @_; |
970
|
|
|
|
|
|
|
|
971
|
5
|
100
|
|
|
|
12
|
if (!defined($str)) { |
972
|
1
|
|
|
|
|
4
|
return undef; |
973
|
|
|
|
|
|
|
} |
974
|
|
|
|
|
|
|
|
975
|
4
|
50
|
|
|
|
9
|
if (!$substr) { |
976
|
0
|
|
|
|
|
0
|
$substr = $str; |
977
|
0
|
|
|
|
|
0
|
$str = $_; |
978
|
|
|
|
|
|
|
} |
979
|
|
|
|
|
|
|
|
980
|
4
|
|
|
|
|
6
|
my $len = length($substr); |
981
|
4
|
|
|
|
|
7
|
my $start = length($str) - $len; |
982
|
|
|
|
|
|
|
|
983
|
4
|
|
|
|
|
10
|
my $ret = index($str, $substr, $start) != -1; |
984
|
|
|
|
|
|
|
|
985
|
4
|
|
|
|
|
84
|
return $ret; |
986
|
|
|
|
|
|
|
} |
987
|
|
|
|
|
|
|
|
988
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
989
|
|
|
|
|
|
|
# crunchlines |
990
|
|
|
|
|
|
|
# |
991
|
|
|
|
|
|
|
|
992
|
|
|
|
|
|
|
=head2 crunchlines($string) |
993
|
|
|
|
|
|
|
|
994
|
|
|
|
|
|
|
Compacts contiguous newlines into single newlines. Whitespace between newlines |
995
|
|
|
|
|
|
|
is ignored, so that two newlines separated by whitespace is compacted down to a |
996
|
|
|
|
|
|
|
single newline. |
997
|
|
|
|
|
|
|
|
998
|
|
|
|
|
|
|
$var = crunchlines("x\n\n\nx"); # "x\nx"; |
999
|
|
|
|
|
|
|
|
1000
|
|
|
|
|
|
|
=cut |
1001
|
|
|
|
|
|
|
|
1002
|
|
|
|
|
|
|
sub crunchlines { |
1003
|
3
|
|
|
3
|
1
|
10
|
my ($str) = @_; |
1004
|
|
|
|
|
|
|
|
1005
|
3
|
100
|
|
|
|
9
|
if (!defined($str)) { |
1006
|
1
|
|
|
|
|
5
|
return undef; |
1007
|
|
|
|
|
|
|
} |
1008
|
|
|
|
|
|
|
|
1009
|
2
|
|
|
|
|
17
|
while($str =~ s|\n[ \t]*\n|\n|gs) |
1010
|
|
|
|
|
|
|
{} |
1011
|
|
|
|
|
|
|
|
1012
|
2
|
|
|
|
|
26
|
$str =~ s|^\n||s; |
1013
|
2
|
|
|
|
|
6
|
$str =~ s|\n$||s; |
1014
|
|
|
|
|
|
|
|
1015
|
2
|
|
|
|
|
10
|
return $str; |
1016
|
|
|
|
|
|
|
} |
1017
|
|
|
|
|
|
|
# |
1018
|
|
|
|
|
|
|
# crunchlines |
1019
|
|
|
|
|
|
|
#------------------------------------------------------------------------------ |
1020
|
|
|
|
|
|
|
|
1021
|
|
|
|
|
|
|
=head2 sanitize($string, $separator = "_") |
1022
|
|
|
|
|
|
|
|
1023
|
|
|
|
|
|
|
Sanitize all non alpha-numeric characters in a string to underscores. |
1024
|
|
|
|
|
|
|
This is useful to take a URL, or filename, or text description and know |
1025
|
|
|
|
|
|
|
you can use it safely in a URL or a filename. |
1026
|
|
|
|
|
|
|
|
1027
|
|
|
|
|
|
|
B This will remove any trailing or leading '_' on the string |
1028
|
|
|
|
|
|
|
|
1029
|
|
|
|
|
|
|
$var = sanitize("http://www.google.com/") # http_www_google_com |
1030
|
|
|
|
|
|
|
$var = sanitize("foo_bar()"; # foo_bar |
1031
|
|
|
|
|
|
|
$var = sanitize("/path/to/file.txt"); # path_to_file_txt |
1032
|
|
|
|
|
|
|
$var = sanitize("Big yellow bird!", "."); # Big.yellow.bird |
1033
|
|
|
|
|
|
|
|
1034
|
|
|
|
|
|
|
=cut |
1035
|
|
|
|
|
|
|
|
1036
|
|
|
|
|
|
|
sub sanitize { |
1037
|
4
|
|
|
4
|
1
|
10
|
my $str = shift(); |
1038
|
4
|
|
100
|
|
|
15
|
my $sep = shift() // "_"; |
1039
|
|
|
|
|
|
|
|
1040
|
4
|
50
|
|
|
|
12
|
if (!defined($str)) { |
1041
|
0
|
|
|
|
|
0
|
return undef; |
1042
|
|
|
|
|
|
|
} |
1043
|
|
|
|
|
|
|
|
1044
|
|
|
|
|
|
|
# Convert multiple non-word sequences to the separator |
1045
|
4
|
|
|
|
|
29
|
$str =~ s/[\W_]+/$sep/g; |
1046
|
|
|
|
|
|
|
|
1047
|
|
|
|
|
|
|
# The separator is a literal character so we quotemeta it |
1048
|
4
|
|
|
|
|
9
|
$sep = quotemeta($sep); |
1049
|
|
|
|
|
|
|
# Remove any separators at the beginning and end |
1050
|
4
|
|
|
|
|
39
|
$str =~ s/\A$sep+//; |
1051
|
4
|
|
|
|
|
33
|
$str =~ s/$sep+\z//; |
1052
|
|
|
|
|
|
|
|
1053
|
4
|
|
|
|
|
21
|
return $str; |
1054
|
|
|
|
|
|
|
} |
1055
|
|
|
|
|
|
|
|
1056
|
|
|
|
|
|
|
########################################################################### |
1057
|
|
|
|
|
|
|
|
1058
|
|
|
|
|
|
|
=head2 file_get_contents($string, $boolean) |
1059
|
|
|
|
|
|
|
|
1060
|
|
|
|
|
|
|
Read an entire file from disk into a string. Returns undef if the file |
1061
|
|
|
|
|
|
|
cannot be read for any reason. Can also return the file as an array of |
1062
|
|
|
|
|
|
|
lines. |
1063
|
|
|
|
|
|
|
|
1064
|
|
|
|
|
|
|
$str = file_get_contents("/tmp/file.txt"); # Return a string |
1065
|
|
|
|
|
|
|
@lines = file_get_contents("/tmp/file.txt", 1); # Return an array |
1066
|
|
|
|
|
|
|
|
1067
|
|
|
|
|
|
|
=cut |
1068
|
|
|
|
|
|
|
|
1069
|
|
|
|
|
|
|
sub file_get_contents { |
1070
|
2
|
|
|
2
|
1
|
300
|
my ($file, $ret_array) = @_; |
1071
|
|
|
|
|
|
|
|
1072
|
2
|
50
|
|
|
|
85
|
open (my $fh, "<", $file) or return undef; |
1073
|
|
|
|
|
|
|
|
1074
|
2
|
|
|
|
|
5
|
my $ret; |
1075
|
2
|
|
|
|
|
66
|
while (<$fh>) { |
1076
|
488
|
|
|
|
|
940
|
$ret .= $_; |
1077
|
|
|
|
|
|
|
} |
1078
|
|
|
|
|
|
|
|
1079
|
2
|
100
|
|
|
|
9
|
if ($ret_array) { |
1080
|
1
|
|
|
|
|
192
|
return split(/\r?\n/,$ret); |
1081
|
|
|
|
|
|
|
} |
1082
|
|
|
|
|
|
|
|
1083
|
1
|
|
|
|
|
23
|
return $ret; |
1084
|
|
|
|
|
|
|
} |
1085
|
|
|
|
|
|
|
|
1086
|
|
|
|
|
|
|
# return true |
1087
|
|
|
|
|
|
|
1; |
1088
|
|
|
|
|
|
|
|
1089
|
|
|
|
|
|
|
|
1090
|
|
|
|
|
|
|
__END__ |