Action

Indent

Posted by agiletortoise, Last update 28 days ago

UPDATES

28 days ago

Minor refactoring.

show all updates...

28 days ago

Minor refactoring.

8 months ago

Should insert indent character if run without a selection on an empty line.

Indent the selected line range.

Note that by default this action is bound to the keyboard shortcut ⌘-], which is common in many text editors. If you prefer to indent blocks using the tab key, see this forum tip on re-assigning shortcuts.

Steps

  • script

    // character string used for indent
    const indent = editor.preferredTabString
    
    // grab ranges and text
    let [selStart, selLen] = editor.getSelectedRange()
    let [lnStart, lnLen] = editor.getSelectedLineRange()
    let lnText = editor.getTextInRange(lnStart, lnLen)
    
    // loop over lines and add indents skipping blank lines
    let indentedLines = []
    let indentCt = 0
    let fl = false; // track line ending
    if (lnText.endsWith("\n")) {
    	lnText = lnText.slice(0, -1)
    	fl = true
    }
    let lines = lnText.split("\n")
    if (lines.length == 1 && lines[0].length == 0 && selLen == 0) {
    	// cursor on a single empty line, just add indent
    	editor.setTextInRange(selStart, 0, indent)
    	editor.setSelectedRange(selStart+indent.length, 0)
    }
    else {
    	for(let line of lines) {
    		if (line.length > 0) { // do not indent blank line
    			indentedLines.push(indent + line)
    			indentCt++
    		}
    		else {
    			indentedLines.push(line)
    		}
    	}
    
    	// set text
    	let resultText = indentedLines.join("\n")
    	if (fl) { resultText = resultText + "\n" } // restore last ending
    	editor.setTextInRange(lnStart, lnLen, resultText)
    
    	// update selection
    	let newStart = selStart + indent.length
    	let newLen = selLen + (indent.length * (indentCt - 1))
    	editor.setSelectedRange(newStart, newLen)
    }

Options

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