- utility and library written in pure Go
.emafile format
EMA file is a text-based format in UTF-8 encoding with .ema extension.
Each file starts with header, which is four bytes: {EMA (values 123, 69, 77, 65)
File content can be separated to arbitrary numbers of parts, with each part being one of the following:
All bytes are interpreted as plain text.
The only special character is { (U+007B), which has the following meaning:
- If there is another
{character immediately after{, text part continues and both characters are interpreted as one occurrence of{character. - Otherwise, text part ends and content continues as data part.
Character
{is included to data part.
All bytes are interpreted as JSON object (see json.org).
After end } character of object content continues as text part.
There is also special data part form called command
where starting { is followed by letter A-Z or a-z
(first command name letter).
Spaces between { and command name are allowed and have no meaning.
Command name match regular expression:
^[A-Za-z][-0-9A-Za-z]*$After command name, there can be optional spaces followed by:
- end
}character of command - JSON array followed by optional spaces and end
}character of command - JSON object followed by optional spaces and end
}character of command
Spaces are all characters in Unicode category Space Separator.
Following commands and JSON object are equivalent:
{} = {}
{bold} = {"use": ["bold"]}
{ bold } = {"use": ["bold"]}
{bold[1]} = {"use": ["bold", 1]}
{ bold [1] } = {"use": ["bold", 1]}
{bold[1, 2]} = {"use": ["bold", 1, 2]}
{ bold [1, 2] } = {"use": ["bold", 1, 2]}
{bold{"w": 1}} = {"use": ["bold", {"w": 1}]}
{ bold {"w": 1} } = {"use": ["bold", {"w": 1}]}