Case 047

Case corpus: a self-authored triangle pattern printer

triangle_pattern_printer.eml is one of a six-case self-authored batch of deterministic simulations and pattern generators (see [examples/fizzbuzz/](../fizzbuzz/), [examples/multiplication-table-generator/](../multiplication-table-generator/), [examples/simple-calculator/](../simple-calculator/), [examples/rock-paper-scissors-simulator/](../rock-paper-scissors-simulator/), and [examples/dice-roll-tally/](../dice-roll-tally/) for the other five) — part of growing the EML case corpus toward AI-native training scale, not a port of an existing project.

ok: true — round-trip fixpoint reached (python1 == python2)updated 2026-07-19

EML

eml
# Self-authored for the EML case corpus (no external origin). Prints a
# 5-row triangular pattern of asterisks using nested for-loops over EML's
# native [a:b] range literal (the inner loop's upper bound is the outer
# loop variable itself) and string concatenation to build each row.

for row in [1:5]:
    "" => line
    for col in [1:row]:
        line + "*" => line
    line^0

Python (deterministic transpilation)

python
for row in range(1, 6):
    line = ""
    for col in range(1, row+1):
        line = line + "*"
    print(line)

stdout (executed)

text
*
**
***
****
*****

Trace event types

eml:run:starteml:assigneml:outputeml:run:done