Action

Outdent

Posted by agiletortoise, Last update 4 months ago

UPDATES

4 months ago

Minor refactoring, and better handling of cases where existing indent characters do not match your preferred indent string.

Outdent the selected line range removing one level of nested white space.

Note that by default this action is bound to the keyboard shortcut ⌘-[, which is common in many text editors. If you prefer to outdent blocks using the shift-tab keyboard shortcut, 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 remove level of indents
    let updatedLines = []
    let outdentCt = 0
    let startAdjust = 0
    let isFirst = true
    
    let lines = lnText.split("\n")
    for (let line of lines) {
    	if (line.startsWith(indent)) {
       		updatedLines.push(line.substr(indent.length, line.length-indent.length))
       		if (!isFirst) {
          		outdentCt += indent.length
        	}
        	else {
        		if (selStart > lnStart) {
    	      		startAdjust = indent.length
    	      	}
        	}
      }
      else if (line.startsWith("\t")) { // also clean up other whitespace that might not match prefs
          updatedLines.push(line.substr(1, line.length-1))
       		if (!isFirst) {
          		outdentCt += 1
        	}
        	else {
        		if (selStart > lnStart) {
    	      		startAdjust = 1
    	      	}
        	}
      }
      else if (line.startsWith("  ")) { // also clean up other whitespace that might not match prefs
          updatedLines.push(line.substr(2, line.length-2))
       		if (!isFirst) {
          		outdentCt += 2
        	}
        	else {
        		if (selStart > lnStart) {
    	      		startAdjust = 2
    	      	}
        	}
      }
      else { // not indented
        updatedLines.push(line)
      }
      isFirst = false
    }
    
    // set text
    editor.setTextInRange(lnStart, lnLen, updatedLines.join("\n"))
    
    // update selection
    let newStart = selStart - startAdjust
    let newLen = selLen - outdentCt
    editor.setSelectedRange(newStart, newLen)
    

Options

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    Notification Error
    Log Level Error
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