Mac使用Graph Easy（纯文本流程图）

Overview

  +--------------------------------------------+
  |                                            v
+------+     +---------+     +---------+     +--------+     +--------+
| Bonn | --> | Ulm     | --> | Bautzen | --> | Berlin | --> | Kassel |
+------+     +---------+     +---------+     +--------+     +--------+
  |            |                               ^
  |            |                               |
  |            v                               |
  |          +---------+                       |
  +--------> | Koblenz | ----------------------+
             +---------+

Graph::Easy 是一个处理图形DSL的Perl模块，它有如下功能：

• 提供了一种易懂，可读性很强的图形描述语言
• 一种支持 ASCII Art 的基于网格的布局器
• 可以导出为 Graphviz, VCG (Visualizing Compiler Graphs), GDL (Graph Description LAnguages) 和 GraphML 格式。
• 可以从 Graphviz, VCG 和 GDL 导入图像。

Document

http://bloodgate.com/perl/graph/manual/index.html

Install

• brew install graphviz
• cpan
• sudo cpan Graph:Easy

环境变量

• vim ~/.bash_profile

GRAPH_EASY=/Users/***/.cpan/build/Graph-Easy-0.76-1_zAcK/blib/script
PATH=$GRAPH_EASY:$PATH:.
export PATH

• source ~/.bash_profile

中文格式问题解决

• 编辑Node.pm和Easy.pm文件

diff --git a/lib/Graph/Easy.pm b/lib/Graph/Easy.pm
index 0ae40fd..b67bacc 100644
--- a/lib/Graph/Easy.pm
+++ b/lib/Graph/Easy.pm
@@ -1570,7 +1570,9 @@ sub as_ascii
   # select 'ascii' characters
   $self->{_ascii_style} = 0;

-  $self->_as_ascii(@_);
+  my $asc = $self->_as_ascii(@_);
+  $asc =~ s/(\x{FFFF})//g;
+  $asc;
   }

 sub _as_ascii
diff --git a/lib/Graph/Easy/Node.pm b/lib/Graph/Easy/Node.pm
index b58f538..6d7d7c7 100644
--- a/lib/Graph/Easy/Node.pm
+++ b/lib/Graph/Easy/Node.pm
@@ -1503,6 +1503,9 @@ sub label

   $label = $self->_un_escape($label) if !$_[0] && $label =~ /\\[EGHNT]/;

+  # placeholder for han chars
+  $label =~ s/([\x{4E00}-\x{9FFF}])/$1\x{FFFF}/g;
+
   $label;
   }

• 编译安装
  1. cd build/Graph-Easy-0.76-1_zAcK
  2. 运行perl Makefile.PL来创建make文件，同时执行make test来运行测试套件。
  3. 如果所有的测试都PASS通过了，以超管理员权限执行编译：sudo make install

Demo

• 分支 graph-easy <<< '[a]->[b]->[c][b]->[d]->[e]'

+---+     +---+     +---+     +---+
| a | --> | b | --> | d | --> | e |
+---+     +---+     +---+     +---+
            |
            |
            v
          +---+
          | c |
          +---+

• 闭环 graph-easy <<< '[a]->[b]->[c]->[b]->[d]->[e]'

  +--------------+
  |              v
  |  +---+     +---+     +---+     +---+
  |  | a | --> | b | --> | d | --> | e |
  |  +---+     +---+     +---+     +---+
  |              |
  |              |
  |              v
  |            +---+
  +----------- | c |
               +---+

• 合流 graph-easy <<< '[a]->[b]->[c][d]->[e]->[b]'

+---+     +---+     +---+
| a | --> | b | --> | c |
+---+     +---+     +---+
            ^
            |
            |
+---+     +---+
| d | --> | e |
+---+     +---+

• 流程说明 graph-easy <<< '[a]- say hello ->[b]'

+---+  say hello   +---+
| a | -----------> | b |
+---+              +---+

• 上下结构 graph-easy <<< 'graph{flow:south;}[上]->[中]->[下]'

+---+
| 上 |
+---+
  |
  |
  v
+---+
| 中 |
+---+
  |
  |
  v
+---+
| 下 |
+---+

• 读取文本

首先，编辑文本 vim graph-easy.text

[Instapaper] {size: 2,7;}
[RSS(Feedly)] -> [Instapaper]{ origin: RSS(Feedly); offset: 2,0;}
[WeChat] -> [Instapaper]{ origin: WeChat; offset: 2,-6;}
[Website] -> [Instapaper]
[IFTTT]{size: 1,7;}
[Instapaper] -> [Diigo]{ origin: Instapaper; offset: 2,-2;}
[Instapaper] -> [IFTTT]{ origin: Instapaper; offset: 2,0;}
[Instapaper] -> [Evernote]{ origin: Instapaper; offset: 2,2;}
[Webtask(Serverless)]{size: 2,7;}
[IFTTT] -> [Webtask(Serverless)]{ origin: IFTTT; offset: 2,0;}

然后，执行此文件 graph-easy graph-easy.text

                                         +----------+
                                 +-----> |  Diigo   |
                                 |       +----------+
                                 |
                                 |
                                 |
+-------------+     +--------------+     +----------+     +---------------------+
| RSS(Feedly) | --> |              | --> |          | --> |                     |
+-------------+     |  Instapaper  |     |  IFTTT   |     | Webtask(Serverless) |
+-------------+     |              |     |          |     |                     |
|   WeChat    | --> |              |     |          |     |                     |
+-------------+     +--------------+     +----------+     +---------------------+
                      ^          |
                      |          |
                      |          |
                    +---------+  |       +----------+
                    | Website |  +-----> | Evernote |
                    +---------+          +----------+

边的风格

        ->              实线
        =>              双实线
        .>              点线
        ~>              波浪线
        - >             虚线
        .->             点虚线
        ..->            dot-dot-dash
        = >             double-dash

e.g. graph-easy <<< '[hello].>[world]'

+-------+     +-------+
| hello | ..> | world |
+-------+     +-------+