Package Exports

node-balanced

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Readme

Balanced

balanced string matching, and replacing.

install

    npm install node-balanced

example time

lets say you have

and you would like to replace the @hello block easily, balanced allows you to do this

    var balanced = require('node-balanced');

    balanced.replacements({
        source: source,
        head: /@hello \d \{/,
        right: '{',
        left: '}',
        replace: function (source, head, tail) {
            return head + source + tail;
        }
    });

this is a simple and efficient way to make balanced replacements, without a parser.

matching

you can get balanced matches by doing the following

var balanced = require('node-balanced');

balanced.matches({
    source: source,
    head: /@hello \d \{/,
    right: '{',
    left: '}'
});

advanced

in this example we have code and we want to avoid replacing text thats inside of the comments

with balanced you can do this

    var comments = balanced.matches({source: source, right: '/*', left: '*/'}),
        matches = balanced.matches({source: source, head: /@hello \d \{/, right: '{', left: '}'});

    matches = matches.filter(function (match) {
        var insideComment = false;

        comments.forEach(function (comment) {
            insideComment = match.index >= comment.index && match.index <= comment.index + comment.length;
        });

        return !insideComment;
    });

    balanced.replaceMatchesInString(matches, source, function (source, head, tail) {
        return head + source + tail;
    });