vscode + xelatex on ubuntu

## pre

* 安装`tex live`并配置全局环境变量
* 安装`vscode`

## 禁用fcitx的虚拟键盘

![title](https://leanote.com/api/file/getImage?fileId=5cd240cfab64417a7100556b)

fcitx的虚拟键盘会占用编辑快捷键`ctrl+alt+b`

## vscode 安装

安装插件`Latex Workshop`

![title](https://leanote.com/api/file/getImage?fileId=5cd241a7ab64417a71005596)

## magic comment

行首加上 
```
% !TEX program = xelatex
```
指定`xelatex`编译

这是使用`xelatex > bibtex > xelatex > xelatex`过程编译。如果不加则默认使用pdflatex。

官方文档中不建议这么做，兼容性成疑，这里使用下面介绍的方式

## 配置xelatex工具链

打开setting.json，加入
```json
    "latex-workshop.latex.tools": [
        {
            "name": "latexmk",
            "command": "latexmk",
            "args": [
                "-synctex=1",
                "-interaction=nonstopmode",
                "-file-line-error",
                "-pdf",
                "%DOC%"
            ]
        },
        {
            "name": "xelatex",
            "command": "xelatex",
            "args": [
                "-synctex=1",
                "-interaction=nonstopmode",
                "-file-line-error",
                "%DOC%"
            ]
        },
        {
            "name": "pdflatex",
            "command": "pdflatex",
            "args": [
                "-synctex=1",
                "-interaction=nonstopmode",
                "-file-line-error",
                "%DOC%"
            ]
        },
        {
            "name": "bibtex",
            "command": "bibtex",
            "args": [
                "%DOCFILE%"
            ]
        }
    ],
    "latex-workshop.latex.recipes": [
        {
            "name": "xelatex -> bibtex -> xelatex*2",
            "tools": [
                "xelatex",
                "bibtex",
                "xelatex",
                "xelatex"
            ]
        },
        {
            "name": "xelatex",
            "tools": [
                "xelatex"
            ]
        },
        {
            "name": "latexmk",
            "tools": [
                "latexmk"
            ]
        },
        {
            "name": "pdflatex -> bibtex -> pdflatex*2",
            "tools": [
                "pdflatex",
                "bibtex",
                "pdflatex",
                "pdflatex"
            ]
        }
    ]
```

## 预览

打开tex文件，右上角有一图标，可以打开预览

![title](https://leanote.com/api/file/getImage?fileId=5cd38f24ab644131ea0014b4)

## 参考

* [James-Yu/LaTeX-Workshop](https://github.com/James-Yu/LaTeX-Workshop/wiki)

逆风起笔