Literate Programming in Org Mode

July 18, 2024 | emacs, example

tags: Emacs

Literate Programming CS #

C-c C-,: select template
C-c C-c: evaluate code inside source block

UML diagrams with PlantUML #

Python #

:results value #

Only if you use the header argument :results value the code of the block is wrapped by a function and the result of the code block is the return value of that function.

return 7 + 7

:results output #

On the other hand * means that the code of the block is sent to the interpreter. The result of the code block is what the code prints to the standard output.

print (f"7+7")

7+7

print("Welcome")

Welcome

with virtualenv #

(pyvenv-workon "tawakkalna_env")

echo $VIRTUAL_ENV
which python

import sys
print('\n'.join(sys.path))

Math #

literate-calc-mode #

github

C-Spc i
- x literate calc evaluate line
- “:results” dictionary or property list evaluation in org mode output/value
- “:vars” dictionary or property list :var a=38 b=4 can be passed to the source block

Flour = 500g
Water = 100g
total = Flour + water

Calc mode #

C-Spc i
- i : calc
- q: quick calculator result of calculation will be stored in kill ring
```
3 + 7 * (5 - 2)
```

OCR of Images #

arrows.png #

Bob Alice Red A - > - < - - - - - - Y - Bob Alice Red

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