Lsgv

Lsgv: List Style Graphviz

Lsgv Illustration

Todo

• Support Cluster
• Parser Preprocessing
• Secondary Parser Symbol
• Customize Global Style

Feature

To present data as list

(-> a b)
(-> (a b) c)
(-> a (b c (e f) d))

Support style

;; define style
($ red-style :color red)
;; use style
(+@ :type red-style a b)

Style reuse

Different style for the data:

lsgv green-style.lsgvs diff-style-demo.lsgv
lsgv red-style.lsgvs diff-style-demo.lsgv

User refine style

(+@ :type my-node :color #x330099
    a b c d e)

Dynamic calulate color

The node can calculate the color dynamically:

(+@ :type rainbow
    h i j)

The color of line can be calculated dynamically:

(-> :relation parent
    h (i j k l))

Predefine a style for project

project style

(+@ :type core
    core)

simple project style

(+@ :type simple-core
    core)

override style

lsgv drop-color.lsgvs project-demo.lsgv

Usage

Format

(instruction :key1 :value1 :key2 :value2
              data1 data2)

Instruction

1. !: Settings
   • :rankdir: graphviz rankdir
   • :layout: graphviz layout
   • :sep: graphviz sep
   • :splines: graphviz splines
   • :rainbow-color: initial rainbow color
   • :rainbow-count: how many rainbow color
2. $: Style
3. +@: Node
   • :color: graphviz color
   • :fontcolor: graphviz fontcolor
   • :style: graphviz style
   • :shape: graphviz shape
   • :type: style
   • :fontcolor-ratio: the ratio of fontcolor
   • :filled-color-ratio: the ratio of filled color
   • :color-ratio: the ratio of color
   • :fontcolor-offset: the offset of fontcolor
   • :filled-color-ratio: the offset of filled color
   • :fix-fontcolor-blue-offset:the offset of blue
   • :color-ratio: the offset of color
   • :override: the method of color override
4. =@: Rank
5. ->: Line
   • :style: graphviz style
   • :arrowhead: graphviz arrowhead
   • :arrowtail: graphviz arrowtail
   • :penwidth: graphviz penwidth
   • :label: graphviz label
   • :color: graphviz color
   • :type: style
   • :relation: dynamic calculate color

Run

Environtment

1. Scheme Implementation (R7RS/R6RS)
2. Graphviz

The scheme implementation I use:

• Chez(R6RS)
• Cyclone(R7RS)

Script

# chez
scheme --script lsgv.scm $file

Binary

# cyclone
cyclone lsgv-with-r7rs.scm
lsgv-with-r7rs $file