Baklava in Gnu Make

Welcome to the Baklava in Gnu Make page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

# Constants
EMPTY :=
SPACE := $(EMPTY) $(EMPTY)
STAR := *

# Numbers are represented as x's so that they can be manipulated with text functions.
# This idea is based on how the GNU Make Standard Library (https://github.com/jgrahamc/gmsl)
# handles numbers.
ONE := x
TWO := x x
TEN := $(TWO) $(TWO) $(TWO) $(TWO) $(TWO)

# Increment function
# Arg 1: Number encoded as x's
# Return: Number + 1 encoded as x's
INC = $(strip $(1) $(ONE))

# Decrement function
# Arg 1: Number encoded as x's
# Return: max(Number - 1, 0) encoded as x's
DEC = $(wordlist 2,$(words $(1)),$1)

# Add function
# Arg 1: Number 1 encoded as x's
# Arg 2: Number 2 encoded as x's
# Return: Number 1 + Number 2 encoded as x's
ADD = $(strip $(1) $(2))

# Subtract function
# Arg 1: Number 1 encoded as x's
# Arg 2: Number 2 encoded as x's
# Return: Max(Number 1 - Number 2, 0) encoded as x's
SUB = $(wordlist $(words $(call INC,$(2))),$(words $(1)),$(1))

# Repeat function
# Arg 1: Character
# Arg 2: Number of repeats encoded as x's
# Return: Character repeated specified number of times
REPEAT = $(subst $(1)$(SPACE),$(1),$(foreach _,$(2),$(1)))

# Baklava line function
# Arg 1: Number of spaces encoded as x's
# Arg 2: Number of stars encoded as x's
# Return: Specified number of spaces followed by specified number of stars
BAKLAVA_LINE = $(call REPEAT,$(SPACE),$(1))$(call REPEAT,$(STAR),$(2))

# Baklava upper loop
#
# Output upper portion of Bakalava
#
# Arg 1: Starting number of spaces encoded as x's
# Arg 2: Starting number of stars encoded as x's
define UPPER_BAKLAVA_LOOP
$(info $(call BAKLAVA_LINE,$(1),$(2)))
$(if $(1),$(call UPPER_BAKLAVA_LOOP,$(call DEC,$(1)),$(call ADD,$(2),$(TWO))))
endef

# Baklava lower loop
#
# Output lower portion of Baklava
# Arg 1: Starting number of spaces encoded as x's
# Arg 2: Starting number of stars encoded as x's
define LOWER_BAKLAVA_LOOP
$(if $(2),\
    $(info $(call BAKLAVA_LINE,$(1),$(2)))\
    $(call LOWER_BAKLAVA_LOOP,$(call INC,$(1)),$(call SUB,$(2),$(TWO)))\
)
endef

# Run Bakalava loops
$(call UPPER_BAKLAVA_LOOP,$(TEN),$(ONE))
$(call LOWER_BAKLAVA_LOOP,$(ONE),$(call DEC,$(call ADD,$(TEN),$(TEN))))

.PHONY: all
all: ;@:

Baklava in Gnu Make was written by:

• rzuckerm

If you see anything you'd like to change or update, please consider contributing.

Note: The solution shown above is the current solution in the Sample Programs repository as of Jul 25 2023 18:35:20. The solution was first committed on Jul 13 2023 09:30:03. As a result, documentation below may be outdated.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.