Jump To Header

script

/*
 * Original Script 'Find and Navigate to Headers' by Tim Nahumck.
 *
 * Enhanced by Stefano F. Rausch:
 *
 * - Applied the modular pattern.
 * - Using the strict programming conventions.
 * 
 * - Better ( real ) header recognition.
 * - Empty headers will not appear in the list of jump points.
 * - Jump to the start or end of a draft even if headers are missing.
 * - Simplified the conditional statements user response-wise.
 */

( () => {
  'use strict';
  
  let d = draft.content;
  
  // find lines that start with hashes
  
  let headers = d.match( /^#+?[ \t]+\S.*$/mgi );
  
  // display prompt
  
  let p = Prompt.create();
  
  p.title = "Jump To";
  
  p.addButton( "Start of Draft" );
  
  if ( headers ) {
    for ( let i = 0; i < headers.length; i++ ) {
    	p.addButton( headers[i] );
    }
  }
  
  p.addButton( "End of Draft" );
  
  let jump = p.show();
  
  // process user response
  
  if ( jump ) {
    if ( p.buttonPressed == "Start of Draft" ) {
      editor.setSelectedRange( 0, 0 );
    }
    
    else if ( p.buttonPressed == "End of Draft" ) {
        editor.setSelectedRange( d.length, 0 );
    }
    
    else {
      let header = p.buttonPressed;
      let position = d.search( header );
      
      editor.setSelectedRange( position + header.length, 0 )
   }
    
    editor.focus();
  }
  
  else {
    context.cancel();
  }
  
  return;
} )();