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<!-- Copyright (C) 2023 by Jinwen XU -->
# `jwjournal`, a personal LaTeX class for writing journals
## Introduction
A typical journal entry produced by `jwjournal` looks like this:
![image](https://github.com/Jinwen-XU/jwjournal/raw/main/screenshots/demo1.png)
Codewise, it is as simple as below:
```
2023-01-01 Sunny --- Botanical Garden
Today I visited the botanical garden!
[Food] And had ice-cream for lunch!
```
Every day of the week has its unique color, like this:
![image](https://github.com/Jinwen-XU/jwjournal/raw/main/screenshots/demo2.png)
By the way, the conversion from plain date string like `2023-01-01` to natural language like `January 1, 2023 | Sunday` is done automatically by `jwjournal` and has multilingual support. Thus, for example (with `\UseLanguage{...}`):
- Chinese: ![image](https://github.com/Jinwen-XU/jwjournal/raw/main/screenshots/demo3-cn.png)
- French: ![image](https://github.com/Jinwen-XU/jwjournal/raw/main/screenshots/demo3-fr.png)
- German: ![image](https://github.com/Jinwen-XU/jwjournal/raw/main/screenshots/demo3-de.png)
- Japanese: ![image](https://github.com/Jinwen-XU/jwjournal/raw/main/screenshots/demo3-jp.png)
- Spanish: ![image](https://github.com/Jinwen-XU/jwjournal/raw/main/screenshots/demo3-es.png)
- ... and more...
## Usage
The structure of the document is very simple:
```latex
\documentclass[11pt, paperstyle=light yellow, color entry]{jwjournal}
\begin{document}
% Your journal
\end{document}
```
The options are:
- `paperstyle = ...` adjusts the paper color, options include: lightyellow、yellow、parchment、green、lightgray、gray、nord、dark...
- `color entry` adds more color to the title of each entry
- `scroll` turns on the scroll mode and can generate a single-page pdf similar to a long screenshot
And there are only three syntaxes for the main text:
1) Title
- Any line begins with date like `2023-01-01` would be regard as the Title line.
- You may write the weather and/or location after the date.
- Example:
```
2023-01-01 Sunny --- Apartment
```
2) Note
- Any line begins with something like `[Note]` would be regard as the Note line.
- Example:
```
[Note] In hindsight, it was the right decision.
```
3) `+++`
- In some rare case, if a single sentence or a few words fall to the next page, you may write a `+++` to enlarge the current page by one line.
> You may also refer to the demo documents to see their behaviors in action.
Indentations are not important, but paragraphs need to be separated by a blank line. For the sake of readability, it is recommended to organize your text as follows:
```
2023-01-01 Sunny
......
......
2023-01-02 Cloudy
......
......
2023-01-03 Rainy
......
......
```
## TeXnical details
### Engines and base classes
- With pdfLaTeX, the base class is `minimart`.
- With XeLaTeX or LuaLaTeX, the base class is `einfart`.
### Colors
The colors from Monday to Sunday have the internal names `jwjournal-color-1`, ..., `jwjournal-color-7`. Currently they are defined as:
```latex
\colorlet { jwjournal-color-1 } { yellow!50!green }
\colorlet { jwjournal-color-2 } { yellow!70!orange }
\colorlet { jwjournal-color-3 } { cyan!70!blue }
\colorlet { jwjournal-color-4 } { violet }
\colorlet { jwjournal-color-5 } { yellow!40!cyan }
\colorlet { jwjournal-color-6 } { yellow!20!orange }
\colorlet { jwjournal-color-7 } { red!20!orange }
```
### Functionality
The main features are achieved with the power of LaTeX3's regex functionality. It scans the content paragraph by paragraph and converts recognized patterns into corresponding TeX commands. Thus, `2023-01-01 Weather` becomes `\JWJournalEntry{2023-01-01}{Weather}`, `[Note] ...` becomes `\item[Note] ...` inside a `description` environment, and `+++` is essentially `\enlargethispage*{\baselineskip}`. However, this comes with a price: in order to scan the content, it is firstly stored in a macro `\g_jwjournal_content_tl`, and that means that you cannot use commands like `\verb` in your main text.
### Scroll mode
The scroll mode is achieved by directly accessing `\pdfpageheight` (pdfTeX and XeTeX) or `\pageheight` (LuaTeX). The minimal page height is set to be `10in`. It is worth noting that in order to calculate the height needed, the entire content are put into a single box, which puts a limitation on the length of your document (but this usually wouldn't be a problem).
# License
This work is released under the LaTeX Project Public License, v1.3c or later.
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