nightfury7 / universalbasics.js

src/ub.strings.words.js

/** global: UB */

UB.wordSeperators = [" ", ".", ",", ";", "[", "]", "{", "}", "(", ")"];



var arrayFuncs = {

	joinWords: function(){
		var words = this;
		return words.join(" ");
	},

none:null
};

// register funcs
UB.registerFuncs(Array.prototype, arrayFuncs);



var stringFuncs = {
	
	/** advanced: splits by any operator or number char, space & newline.
	 * simple: splits by newline & space.
	 * always returns an array of non-blank, trimmed words. */
	splitWords: function(advanced = true){
		var text = this;

		if (advanced){
			
			var results = [];
			
			// find start of word
			for (var c = 0, cl = text.length;c<cl;c++){
				var cc = text.charAt(c);
				var start = c;
				
				if (cc.isLetter()) {
					
					// find end of word
					for (var e = c + 1;e<cl;e++){
						var ec = text.charAt(e);
						var isLastChar = (e == (cl - 1));
						
						if ((!ec.isLetter() && ec != ' ') || isLastChar){
							
							// skip if "letter [dash] letter"
							if (!isLastChar && ec == '-' && text.charAt(e + 1).isLetter()){
								continue;
							}
							
							// add word if something found
							var end = isLastChar?e:e-1;
							if (end > start) {
								
								var term = text.range(start, end).trim();
								if (term.exists()){
									
									if (splitBySpaceAlso) {

If you intend to check if the variable splitBySpaceAlso is declared in the current environment, consider using typeof splitBySpaceAlso === "undefined" instead. This is safe if the variable is not actually declared.

										term.splitWords().addArray(results);
									} else {
										results.push(term);
									}
								}
							}
							
							// continue at ending
							c = e;
							break;
						}
					}
				}
			}
			return results;

		}
		
		// SPLIT BY NEWLINE & SPACES
		results = [];
		var lines = text.splitLines(true, true);
		for (var s = 0, sl = lines.length; s < sl; s++) {
			var line = lines[s];
			results = line.split(" ");
			for (var w = 0, wl = results.length; w < wl; w++) {
				var word = results[w];
				if (word.length > 0) {
					results.push(word);
				}
			}
		}
		return results;
	},
	
	/** Count words in a string */
	wordCount: function(){
		var text = this;
		return text.match(new RegExp("\\b\\w+\\b", "g")).length;
	},
	none:null
};

// register funcs
UB.registerFuncs(String.prototype, stringFuncs);