Compare two strings to see what has changed, and perform some string manipulation. Used to see what the user changed in a text input field (single- or multiline), and then act accordingly.
Developed to provide several different autocomplete features in a multiline free-text address input fields.
- Changes on the first line would autocomplete the full address from users' most used addresses.
- Changes on the lines after the first line matching
- the start of a street name would autocomplete the street name.
- a complete street name would autocomplete/suggest valid street numbers.
- zip codes would autocomplete the city name.
example/autocomplete-lines-starting-with-digits.html: Even lines that start with digits are autocompleted with names matching these digits.
EditDidWhat works best with smaller changes, such as single key strokes.
var previous = "The first line.\nThe text is miispleed.\nWonder what has changed?" var current = "The first line.\nThe text is corrected.\nWonder what has changed?" var replaceWith = "But now it has been replaced." var change = EditDidWhat.detectChange(previous, current); var diffIndex = EditDidWhat.findDifferenceIndex(previous, current); var diffLastIndex = EditDidWhat.findLastDifferenceIndex(previous, current); var diffLineNumber = EditDidWhat.getLineNumberAt(current, diffIndex); var diffLinePrevious = EditDidWhat.getLine(previous, diffLineNumber); var diffLineCurrent = EditDidWhat.getLine(current, diffLineNumber); var diffLineReplaced = EditDidWhat.replaceLine(current, diffLineNumber, replaceWith); console.log("previous", previous); console.log("current", current); console.log("change", change); // EditDidWhat.StatusReplace console.log("diffIndex", diffIndex); // 28 console.log("diffLineNumber", diffLineNumber); // 1 console.log("diffLinePrevious", diffLinePrevious); // The text is miispleed. console.log("diffLineCurrent", diffLineCurrent); // The text is corrected. console.log("diffLineReplaced", diffLineReplaced); // New string with the corrected line replaced.
EditDidWhat does not have any runtime dependencies.
EditDidWhat copyright © 2011, 2012, 2013, 2014, 2015, 2016, 2017, The Swedish Post and Telecom Authority (PTS). All rights reserved. Released under the BSD license. Developed for PTS by Joel Purra. Your donations are appreciated!