CC = gcc

FLAGS = -std=c99 -O0 -Wall -Werror -g -pedantic

rgrep:

$(CC) $(FLAGS) rgrep.c -o rgrep

clean:

rm -rf rgrep *.dSYM

check: clean rgrep

test "`echo "a\nb\nc" | ./rgrep 'a'`" = "a"

test "`echo "a\n" | ./rgrep 'a'`" = "a"

test "`echo "a" | ./rgrep '...'`" = ""

test "`echo "abc" | ./rgrep '.b.'`" = "abc"

test "`echo "h\naaaaah" | ./rgrep 'a+h'`" = "aaaaah"

test "`echo "h\naaaaahhhhh" | ./rgrep 'aa+hh+'`" = "aaaaahhhhh"

test "`echo "h\naaaaahhhhh\n" | ./rgrep 'aa+hh+'`" = "aaaaahhhhh"

test "`echo "a" | ./rgrep 'a?a'`" = "a"

test "`echo "woot\nwot\nwat\n" | ./rgrep 'wo?t'`" = "wot"

test "`echo "aab" | ./rgrep 'bb?'`" = "aab"

test "`echo "aaab" | ./rgrep 'a+b'`" = "aaab"

test "`echo "aaab" | ./rgrep 'a+ab'`" = "aaab"

@echo "Passed sanity check."