You can add more option rules in addition to those you specified
in the Zend_Console_Getopt
constructor, using the
addRules()
method. The argument to
addRules()
is the same as the first argument to the
class constructor. It is either a string in the format of the
short syntax options specification, or else an associative array
in the format of a long syntax options specification.
See Declaring Getopt Rules
for details on the syntax for specifying options.
Пример 6.7. Using addRules()
<?php $opts = new Zend_Console_Getopt('abp:'); $opts->addRules( array( 'verbose|v' => 'Print verbose output' ) );
The example above shows adding the "--verbose
" option
with an alias of "-v
" to a set of options
defined in the call to the constructor. Notice that you can mix
short format options and long format options in the same instance
of Zend_Console_Getopt
.
In addition to specifying the help strings when declaring option
rules in the long format, you can associate help strings
with option rules using the setHelp()
method. The argument to the setHelp()
method is an
associative array, in which the key is a flag, and the value is a
corresponding help string.
Пример 6.8. Using setHelp()
<?php $opts = new Zend_Console_Getopt('abp:'); $opts->setHelp( array( 'a' => 'This option chooses apple, with no parameter', 'b' => 'This option chooses banana, with required integer parameter', 'p' => 'This option chooses pear, with optional string parameter' ) );
If you declared options with aliases, you can use any of the aliases as the key of the associative array.
The setHelp()
method is the only way to define help
strings if you declared the options using the short syntax.
You can declare aliases for options using the setAliases
method. The argument is an associative array, whose key is
a flag string declared previously, and whose value is a new
alias for that flag. These aliases are merged with any existing
aliases. In other words, aliases you declared earlier are
still in effect.
An alias may be declared only once. If you try to redefine
an alias, a Zend_Console_Getopt_Exception
is thrown.
Пример 6.9. Using setAliases()
<?php $opts = new Zend_Console_Getopt('abp:'); $opts->setAliases( array( 'a' => 'apple', 'a' => 'apfel', 'p' => 'pear' ) );
In the example above, after declaring these aliases,
"-a
", "--apple
" and
"--apfel
" are aliases for each other.
Also "-p
" and "--pear
" are aliases
for each other.
The setAliases()
method is the only way to define aliases
if you declared the options using the short syntax.
By default, Zend_Console_Getopt
uses
$_SERVER['argv']
for the array of command-line
arguments to parse. You can alternatively specify the array of
arguments as the second constructor argument. Finally, you
can append more arguments to those already used using the
addArguments()
method, or you can replace the current
array of arguments using the setArguments()
method.
In both cases, the parameter to these methods is a simple array of
strings. The former method appends the array to the current
arguments, and the latter method substitutes the array for the
current arguments.
Пример 6.10. Using addArguments() and setArguments()
<?php // By default, the constructor uses $_SERVER['argv'] $opts = new Zend_Console_Getopt('abp:'); // Append an array to the existing arguments $opts->addArguments(array('-a', '-p', 'p_parameter', 'non_option_arg')); // Substitute a new array for the existing arguments $opts->setArguments(array('-a', '-p', 'p_parameter', 'non_option_arg'));
The third parameter to the Zend_Console_Getopt
constructor is an array of configuration options that affect
the behavior of the object instance returned. You can also
specify configuration options using the setOptions()
method, or you can set an individual option using the
setOption()
method.
Clarifying the term "option" | |
---|---|
The term "option" is used for configuration of the
|
The currently supported options have const definitions in the class. The options, their const identifiers (with literal values in parentheses) are listed below:
Zend_Console_Getopt::CONFIG_DASHDASH
("dashDash"), if true, enables the special flag "--
" to signify the end of flags. Command-line arguments following the double-dash signifier are not interpreted as options, even if the arguments start with a dash. This configuration option is true by default.Zend_Console_Getopt::CONFIG_IGNORECASE
("ignoreCase"), if true, makes flags aliases of each other if they differ only in their case. That is, "-a
" and "-A
" will be considered to be synonymous flags. This configuration option is false by default.Zend_Console_Getopt::CONFIG_RULEMODE
("ruleMode") may have valuesZend_Console_Getopt::MODE_ZEND
("zend") andZend_Console_Getopt::MODE_GNU
("gnu"). It should not be necessary to use this option unless you extend the class with additional syntax forms. The two modes supported in the baseZend_Console_Getopt
class are unambiguous. If the specifier is a string, the class assumesMODE_GNU
, otherwise it assumesMODE_ZEND
. But if you extend the class and add more syntax forms, you may need to specify the mode using this option.
More configuration options may be added as future enhancements of this class.
The two arguments to the setOption()
method are
a configuration option name and an option value.
Пример 6.11. Using setOption()
<?php $opts = new Zend_Console_Getopt('abp:'); $opts->setOption('ignoreCase', true);
The argument to the setOptions()
method is
an associative array. The keys of this array are the configuration
option names, and the values are configuration values.
This is also the array format used in the class constructor.
The configuration values you specify are merged with the current
configuration; you don't have to list all options.
Пример 6.12. Using setOptions()
<?php $opts = new Zend_Console_Getopt('abp:'); $opts->setOptions( array( 'ignoreCase' => true, 'dashDash' => false ) );