检查所选最后一行的值 - vscode-api

Question

我想知道如何查看活动编辑器的最后一行是否包含任何 characters/text，但不包括空格。这样做的目的是确定是否有突出显示的文本，如果没有突出显示，则在编辑器中返回一个数字而不包括该行。

我知道你可以做到

        const editor = vscode.window.activeTextEditor
        const lastLineSelected = editor.selection.end

为了获取最后一行的编号，但我如何评估该行中突出显示的文本？

Answer 1

如果我没理解错的话，你想获取可能是多行的选择的最后一行的文本。下面是这样做的，检查是否只选择了部分选择的行。

const editor = vscode.window.activeTextEditor;
const selection = editor.selection;

if (selection && !selection?.isEmpty) {

    // is more than one line selected, if so use 0 as the start of the selection on the last line
    //  otherwise use the actual first character selected on that line
    const firstSelectedCharacterOnLastLine = (selection.start.line < selection.end.line) ? 0 : selection.start.character;

    // make a Range to use with getText(<some Range>)
    const lastLineOfSelectionRange = new vscode.Range(selection.end.line, firstSelectedCharacterOnLastLine, selection.end.line, selection.end.character);

    const text = editor.document.getText(lastLineOfSelectionRange);

    // do your testing on the text using javascript String methods
    // like text.search(/[^\s]/)  search for any non-whitespace character
}

检查所选最后一行的值 - vscode-api

Check value of last line selected - vscode-api

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