PhpAssocMap

Library that parses PHP's associative array into Elixir's map.

At his current state,

NEW

A rewrite has been done to the parsing to accelerate the process and make more stable. The use of Leex and Yecc had become very handy. Some utils have been removed, if you were using them, we recommend not migrating to 1.0 yet. If you were using PhpAssocMap.to_tuple/1 or PhpAssocMap.to_map/1, everthing should work as it was.

Feel free to post any issue.

Installation

Add the following to your mix.exs file:

defp deps do
  [
    # ...
    {:php_assoc_map, "~> 3.0"}
  ]
end

Don't forget to run mix deps.get to update dependencies

Note

This library only parses single quoted string as key and value. In PHP, the double quoted string can do interpolation which makes them a bit greedy on performance. For this particular reason, the serialized array will be using single quote. But you can fill any format of associative array (using either single (') or double (") quote as string delimiter)

Usage

Parsing

To map

If you would like to retrieve a map of you array, the function to_map/1 will do the job.

source = """
[
  'lvl_1_1' => [
    'lvl_2_1' => 1,
    'lvl_2_2' => 'Single quoted string',
    'lvl_2_3' => 'A string, with "commas" and stuff'
  ],
  'lvl_1_2' => false
]
"""

PhpAssocMap.to_map(source)

# Outputs
%{
  "lvl_1_1": %{
    "lvl_2_1": 1,
    "lvl_2_2": "Single quoted string",
    "lvl_2_3": "A string, with "commas" and stuff"
  },
  "lvl_1_2": false
}

To tuple

If you would like to retrieve a list o tuple instead of mapof you array, the function to_tuple/1 will be your friend.

source = """
[
  'lvl_1_1' => [
    'lvl_2_1' => 1,
    'lvl_2_2' => 'Single quoted string',
    'lvl_2_3' => "A string, with "commas" and stuff"
  ],
  'lvl_1_2' => false
]
"""

PhpAssocMap.to_tuple(source)

# Outputs
[
  {"lvl_1_1", [
      {"lvl_2_1", 1},
      {"lvl_2_2", "Single quoted string"},
      {"lvl_2_3", "A string, with \"commas\" and stuff"}
    ]
  },
  {"lvl_1_2", false}
}

Serializing

From map

If you would like to get a serialized version of a map, the function from_map/1 will do it.

source = %{
  "lvl_1_1" => %{
    "lvl_2_1" => 1,
    "lvl_2_2" => "Single quoted string",
    "lvl_2_3" => "A string, with \"commas\" and stuff"
  },
  "lvl_1_2" => false
}

PhpAssocMap.from_map(source)

From tuple

If you would like to retrieve a list o tuple instead of mapof you array, the function to_tuple/1 will be your friend.

source = [
  {"lvl_1_1", [
      {"lvl_2_1", 1},
      {"lvl_2_2", "Single quoted string"},
      {"lvl_2_3", "A string, with \"commas\" and stuff"}
    ]
  },
  {"lvl_1_2", false}
}

PhpAssocMap.from_tuple(source)

Outputs

Formatting the result

If you would like to print the serialized array to a PHP file, you might want to have indented. For this purpose, you can use the explode/2 function from the PhpAssocMap.Utils module.

string_source = """
['lvl_1_1'=>['lvl_2_1'=>1,'lvl_2_2'=>'Single quoted string','lvl_2_3'=>'A string, with "commas" and stuff'],'lvl_1_2'=>false]
"""
source = PhpAssocMap.to_tuple(string_source)
# You can replace de 2 below for the number of space to use
PhpAssocMap.from_tuple(source, {:spaces, 2})

"""
[
\s\s'lvl_1_1' => [
\s\s\s\s'lvl_2_1' => 1,
\s\s\s\s'lvl_2_2' => 'Single quoted string',
\s\s\s\s'lvl_2_3' => 'A string, with "commas" and stuff'
\s\s\s\s],
\s\s'lvl_1_2' => false
\s\s]
"""

You can replace de 2 below for the number of space to use

Or with tabs instead

PhpAssocMap.from_tuple(source, :tabs)

"""
[
\t'lvl_1_1' => [
\t\t'lvl_2_1' => 1,
\t\t'lvl_2_2' => 'Single quoted string',
\t\t'lvl_2_3' => 'A string, with "commas" and stuff'
\t\t],
\t'lvl_1_2' => false
\t]
"""

Or no indentation/breakline

PhpAssocMap.from_tuple(source, :none)

"""
[
\t'lvl_1_1' => [
\t\t'lvl_2_1' => 1,
\t\t'lvl_2_2' => 'Single quoted string',
\t\t'lvl_2_3' => 'A string, with "commas" and stuff'
\t\t],
\t'lvl_1_2' => false
\t]
"""

Limitations

Keyed array

Currently, the library only supports named keys, which means that straight are not parsed a the moment.