From 3fabeb5071b3c851cfc194c6a56ccac805e6b580 Mon Sep 17 00:00:00 2001
From: Bryan Ashby <bryan@l33t.codes>
Date: Mon, 1 Jun 2015 17:10:27 -0600
Subject: [PATCH] * Start work on yet another impl. try on MLTEV

---
 core/multi_line_edit_text_view2.js | 114 +++++++++++++++++++++++++++--
 1 file changed, 106 insertions(+), 8 deletions(-)

diff --git a/core/multi_line_edit_text_view2.js b/core/multi_line_edit_text_view2.js
index d8b27ca3..b9aaefa9 100644
--- a/core/multi_line_edit_text_view2.js
+++ b/core/multi_line_edit_text_view2.js
@@ -5,7 +5,7 @@ var View			= require('./view.js').View;
 var miscUtil		= require('./misc_util.js');
 var strUtil			= require('./string_util.js');
 var ansi			= require('./ansi_term.js');
-var TextBuffer		= require('./text_buffer.js').TextBuffer;
+//var TextBuffer		= require('./text_buffer.js').TextBuffer;
 
 var assert			= require('assert');
 var _				= require('lodash');
@@ -26,21 +26,117 @@ function MultiLineEditTextView2(options) {
 	var self = this;
 
 	//
-	//	defualt tabWidth is 8
-	//	See the following:
+	//	ANSI seems to want tabs to default to 8 characters. See the following:
 	//	* http://www.ansi-bbs.org/ansi-bbs2/control_chars/
 	//	* http://www.bbsdocumentary.com/library/PROGRAMS/GRAPHICS/ANSI/bansi.txt
 	//
 	this.tabWidth	= _.isNumber(options.tabWidth) ? options.tabWidth : 8;
 
 
-	this.textBuffer	= new TextBuffer({
-		gapSize	: 64
-	});
+	this.textLines	= [];
 
 	this.redrawVisibleArea = function() {
 
 	};
+
+	/*
+	this.wordWrap = function(s, width) {
+		var re = new RegExp('.{1,' + width + '}(\\s+|$)|\\S+?(\\s+|$)', 'g');
+		return s.match(re) || [];
+	};
+	*/
+
+	this.expandTab = function(col, expandChar) {
+		expandChar = expandChar || ' ';
+		var count = self.tabWidth - (col % self.tabWidth);
+		return new Array(count).join(expandChar);
+	};
+
+	this.wordWrapSingleLine = function(s, width) {
+		//
+		//	Notes
+		//	*	Sublime Text 3 for example considers spaces after a word
+		//		part of said word. For example, "word    " would be wraped
+		//		in it's entirity.
+		//
+		//	*	Tabs in Sublime Text 3 are also treated as a word, so, e.g.
+		//		"\t" may resolve to "      " and must fit within the space.
+		//
+		var tabCount = self.dimens.width / self.tabWidth;
+		var re = /\t|\s+/g;
+		var m;
+		var wordStart;
+		var wrapped = [ '' ];
+		var i = 0;
+		var word;
+
+		function addWord() {
+			if(wrapped[i].length + word.length > self.dimens.width) {
+				wrapped[++i] = word;
+			} else {
+				wrapped[i] += word;
+			}
+		}
+
+		do {
+			wordStart	= re.lastIndex + (_.isObject(m) ? m[0].length - 1 : 0);
+			m			= re.exec(s);
+
+			if(null !== m) {
+				word = s.substring(wordStart, re.lastIndex);
+				console.log(m)
+
+				switch(m[0].charAt(0)) {
+					case ' ' :
+						word += m[0];
+					break;
+
+					case '\t' :
+						//
+						//	Expand tab given position
+						//
+						word += self.expandTab(wrapped[i].length, '\t');
+					break;
+				}
+
+				addWord();
+			}
+		} while(0 !== re.lastIndex);
+
+		//
+		//	Remainder
+		//
+		word = s.substring(wordStart);
+		addWord();
+
+		return wrapped;
+	};
+
+	this.insertText = function(text, row, col) {
+		//
+		//	Perform the following on |text|:
+		//	*	Normalize various line feed formats -> \n
+		//	*	Remove some control characters (e.g. \b)
+		//	*	Word wrap lines such that they fit in the visible workspace.
+		//		Each actual line will then take 1:n elements in textLines[].
+		//	*	Each tab will be appropriately expanded and take 1:n \t
+		//		characters. This allows us to know when we're in tab space
+		//		when doing cursor movement/etc.
+		//
+		//
+		//	Try to handle any possible newline that can be fed to us.
+		//	See http://stackoverflow.com/questions/5034781/js-regex-to-split-by-line
+		//
+		var tempLines = text
+			.replace(/\b/g, '')
+			.split(/\r\n|[\n\v\f\r\x85\u2028\u2029]/g);
+
+		var wrapped;
+		for(var i = 0; i < tempLines.length; ++i) {
+			wrapped = self.wordWrapSingleLine(tempLines[i], self.dimens.width);
+			console.log(wrapped)
+		}
+	};
 }
 
 require('util').inherits(MultiLineEditTextView2, View);
@@ -52,6 +148,8 @@ MultiLineEditTextView2.prototype.redraw = function() {
 };
 
 MultiLineEditTextView2.prototype.setText = function(text) {
-	this.textBuffer.insertText(0, text);
-	console.log(this.textBuffer.getArray())
+	this.textLines = [];
+	this.insertText(text, 0, 0);
+
+	console.log(this.textLines)
 };
\ No newline at end of file