Text Validation

[matyalatte]

Related to https://github.com/matyalatte/tuw/issues/23.

Some options to show error dialogs when there are invalid strings in text boxes.

• regex: Text should match the regular expression.
• wildcard: Text should match the wildcard pattern.
• not_empty: Text box should not be empty.
• exist: Path should exist.

[matyalatte]

Validator was added at a4e1bb64bdac6ee7e8d0239df832dbd16bde3224 ~ 1acea935a95d2621db38ae2454ffdc84ee4a0e74.

The new options should be defined in the validator option.

"components": [
    {
        "type": "file",
        "label": "PNG or JPG", 
        "validator": {
            "not_empty": true,
            "exist": true
        }
    }
]

Each component can show an validation error message when clicking the execution button.

You can also override the error messages with *_error options.

"components": [
    {
        "type": "file",
        "label": "PNG or JPG", 
        "validator": {
            "not_empty": true,
            "not_empty_error": "Type something"
            "exist": true,
            "exist_error": "Custom error message!"
        }
    }
]

[matyalatte]

Close with v0.7.0 release.