Added overflowWrap

README.md

@@ -4,7 +4,7 @@ Finds and replaces common indent, and hard-wraps text. Can work on text that con
 # Example
 
 ```ts
-import {indentAndWrap} from 'https://deno.land/x/indent_and_wrap@v0.0.6/mod.ts';
+import {indentAndWrap} from 'https://deno.land/x/indent_and_wrap@v0.0.7/mod.ts';
 
 console.log
 (	indentAndWrap
@@ -41,6 +41,7 @@ type IndentAndWrapOptions =
 	indent?: string;
 	ignoreFirstIndent?: boolean;
 	wrapWidth?: number;
+	overflowWrap?: boolean;
 	tabWidth?: number;
 	mode?: 'plain' | 'term';
 };
@@ -54,6 +55,7 @@ If `options.ignoreFirstIndent` is set, will look for common indent starting at s
 If you already know the common indent (e.g. you called `findCommonIndent()`), you can provide it as `knownCommonIndent` to save some calculation time.
 If `knownCommonIndent` doesn't match the result of `findCommonIndent()`, the behavior is undefined.
 - If `options.wrapWidth` is set, it inserts `options.endl`, so there're no lines longer than `options.wrapWidth` columns. Columns are calculated with respect to `options.tabWidth` (default 4).
+If `options.overflowWrap` is set, can break long words, that are wider than `options.overflowWrap`.
 
 ## getTextRect()
 
@@ -64,6 +66,7 @@ type GetTextRectOptions =
 {	indent?: string;
 	ignoreFirstIndent?: boolean;
 	wrapWidth?: number;
+	overflowWrap?: boolean;
 	tabWidth?: number;
 	mode?: 'plain' | 'term';
 };

mod.ts

@@ -13,6 +13,16 @@ export type IndentAndWrapOptions =
 	indent?: string;
 	ignoreFirstIndent?: boolean;
 	wrapWidth?: number;
+	overflowWrap?: boolean;
+	tabWidth?: number;
+	mode?: 'plain' | 'term';
+};
+
+export type GetTextRectOptions =
+{	indent?: string;
+	ignoreFirstIndent?: boolean;
+	wrapWidth?: number;
+	overflowWrap?: boolean;
 	tabWidth?: number;
 	mode?: 'plain' | 'term';
 };
@@ -27,14 +37,6 @@ export type CalcLinesOptions =
 	mode?: 'plain' | 'term';
 };
 
-export type GetTextRectOptions =
-{	indent?: string;
-	ignoreFirstIndent?: boolean;
-	wrapWidth?: number;
-	tabWidth?: number;
-	mode?: 'plain' | 'term';
-};
-
 /**	This function does:
 	- Replaces new line characters (`\n`, `\r\n` or `\r`) to `options.endl`, or if it's not set to `\n`.
 	- If `options.indent` is set, it determines common indent characters across all lines, and replaces them with `options.indent` string.
@@ -60,6 +62,7 @@ function doIndentAndWrap(isRect: boolean, text: string, options?: IndentAndWrapO
 {	let indent = options?.indent;
 	const ignoreFirstIndent = options?.ignoreFirstIndent || false;
 	const wrapWidth = options?.wrapWidth || Number.MAX_SAFE_INTEGER;
+	const overflowWrap = options?.overflowWrap || false;
 	const tabWidth = Math.max(1, Math.min(16, options?.tabWidth || 4));
 	const endl = options?.endl || '\n';
 	const isTerm = options?.mode == 'term';
@@ -96,7 +99,7 @@ function doIndentAndWrap(isRect: boolean, text: string, options?: IndentAndWrapO
 	let nLines = lastChar==C_CR || lastChar==C_LF ? 1 : 0;
 	let nColumns = 0;
 	while (i < length)
-	{	const {n, endlLen, isBlankLine} = scanLine(text, i, wantWidth-minusIndent, tabWidth, commonIndentCol, indentCol, isTerm);
+	{	const {n, endlLen, isBlankLine} = scanLine(text, i, wantWidth-minusIndent, overflowWrap, tabWidth, commonIndentCol, indentCol, isTerm);
 		if (!isBlankLine)
 		{	if (!isRect)
 			{	res += indent + text.slice(i+skip, n-endlLen);
@@ -290,7 +293,7 @@ function precedingSpaceLen(text: string, i: number, isTerm: boolean)
 
 /**	Returns position where next line begins, and length of line-break characters at the end of the skipped line.
  **/
-function scanLine(text: string, i: number, wrapWidth: number, tabWidth: number, removeIndentCol: number, addIndentCol: number, isTerm: boolean)
+function scanLine(text: string, i: number, wrapWidth: number, overflowWrap: boolean, tabWidth: number, removeIndentCol: number, addIndentCol: number, isTerm: boolean)
 {	const {length} = text;
 	let col = 0;
 	let wordEnd = 0;
@@ -333,7 +336,7 @@ function scanLine(text: string, i: number, wrapWidth: number, tabWidth: number,
 				break;
 
 
-			case C_BEL: // deno-lint-ignore no-fallthrough
+			case C_BEL:
 			case C_ESC:
 				if (isTerm)
 				{	if (c == C_BEL)
@@ -345,11 +348,14 @@ function scanLine(text: string, i: number, wrapWidth: number, tabWidth: number,
 						continue;
 					}
 				}
+				// fallthrough
 
 			default:
 				col++;
 				if (col > wrapWidth)
-				{	return {n: wordEnd || i, endlLen: 0, isBlankLine: wordEnd==0 && prevIsSpace};
+				{	if (wordEnd || overflowWrap)
+					{	return {n: wordEnd || i, endlLen: 0, isBlankLine: wordEnd==0 && prevIsSpace};
+					}
 				}
 				prevIsSpace = false;
 		}

test.ts

@@ -395,9 +395,73 @@ Deno.test
 			(	'\n Line 1\n    \n Line 2222\n',
 				{indent: '****', wrapWidth: 7}
 			),
+			'\n****Line\n****1\n\n****Line\n****2222\n'
+		);
+
+		assertEquals
+		(	indentAndWrap
+			(	'\n Line 1\n    \n Line 2222\n',
+				{indent: '****', wrapWidth: 7, overflowWrap: true}
+			),
 			'\n****Lin\n****e 1\n\n****Lin\n****e\n****222\n****2\n'
 		);
 
+		assertEquals
+		(	indentAndWrap
+			(	'abcdefghi',
+				{wrapWidth: 3, overflowWrap: true}
+			),
+			'abc\ndef\nghi'
+		);
+
+		assertEquals
+		(	indentAndWrap
+			(	'abcdefghi\n',
+				{wrapWidth: 3, overflowWrap: true}
+			),
+			'abc\ndef\nghi\n'
+		);
+
+		assertEquals
+		(	indentAndWrap
+			(	'abcdefghi\nab cdef',
+				{wrapWidth: 3, overflowWrap: true}
+			),
+			'abc\ndef\nghi\nab\ncde\nf'
+		);
+
+		assertEquals
+		(	indentAndWrap
+			(	'abcdefghi\n',
+				{indent: '  ', wrapWidth: 3, overflowWrap: true}
+			),
+			'  a\n  b\n  c\n  d\n  e\n  f\n  g\n  h\n  i\n'
+		);
+
+		assertEquals
+		(	indentAndWrap
+			(	'abcdefghi\n',
+				{indent: '   ', wrapWidth: 3, overflowWrap: true}
+			),
+			'   a\n   b\n   c\n   d\n   e\n   f\n   g\n   h\n   i\n'
+		);
+
+		assertEquals
+		(	indentAndWrap
+			(	'ab\tcde',
+				{wrapWidth: 3, overflowWrap: true}
+			),
+			'ab\ncde'
+		);
+
+		assertEquals
+		(	indentAndWrap
+			(	'ab\tcde',
+				{indent: '   ', wrapWidth: 3, overflowWrap: true}
+			),
+			'   a\n   b\n   c\n   d\n   e'
+		);
+
 		assertEquals
 		(	indentAndWrap
 			(	'\nLine\t1\nLin\t2\n',