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module vis::Text

rascal-0.40.16

Visualizing values using "ASCII art".

Usage​

import vis::Text;

Dependencies​

import Node;
import List;
import ListRelation;
import ParseTree;
import Type;

Examples​

rascal>syntax E = "e" | E "+" E;
ok
rascal>import IO;
ok
rascal>import vis::Text;
ok
rascal>ex = prettyTree([E] "e+e+e");
str: " ❖\n ├─ E = E  \"+\"  E \n │  ├─ E = \"e\" \n │  └─ E = E  \"+\"  E \n │     ├─ E = \"e\" \n │     └─ E = \"e\" \n └─ E = E  \"+\"  E \n    ├─ E = E  \"+\"  E \n    │  ├─ E = \"e\" \n    │  └─ E = \"e\" \n    └─ E = \"e\" \n"
---
 ❖
 ├─ E = E  "+"  E 
 │  ├─ E = "e" 
 │  └─ E = E  "+"  E 
 │     ├─ E = "e" 
 │     └─ E = "e" 
 └─ E = E  "+"  E 
    ├─ E = E  "+"  E 
    │  ├─ E = "e" 
    │  └─ E = "e" 
    └─ E = "e" 

---
rascal>println(ex);
 ❖
 ├─ E = E  "+"  E 
 │  ├─ E = "e" 
 │  └─ E = E  "+"  E 
 │     ├─ E = "e" 
 │     └─ E = "e" 
 └─ E = E  "+"  E 
    ├─ E = E  "+"  E 
    │  ├─ E = "e" 
    │  └─ E = "e" 
    └─ E = "e" 
ok

function prettyTree​

Pretty prints parse trees using ASCII art lines for edges.

str prettyTree(Tree t, bool src=false, bool characters=true, bool \layout=false, bool literals=\layout)

function prettyNode​

Pretty prints nodes and ADTs using ASCII art for the edges.

str prettyNode(node n, bool keywords=true)

function ppvalue​

str ppvalue(value e, str(value) nodeLabel, lrel[str,value](value) edges)

function ppvalue {#vis-Text-ppvalue}​

str ppvalue_(value e, str(value) nodeLabel, lrel[str,value](value) edges, str indent = "")