Add offside-rule-with-brace.l, Makefile, & README.md

Makefile

@@ -0,0 +1,31 @@
+TARGET := offside-rule-with-brace-scanner
+
+DEBUG :=
+DEBUG_ := NO
+DEBUG_MODE := ${DEBUG_${DEBUG}}DEBUG
+
+CC := g++
+CFLAGS_WARN := -std=c++11 -Wall -Wextra -pedantic-errors
+CFLAGS_DEBUG := -ggdb3
+CFLAGS_NODEBUG := -O2
+CFLAGS := ${CFLAGS_WARN} ${CFLAGS_${DEBUG_MODE}}
+
+LEX := flex
+LFLAGS_DEBUG := -b -p -L
+LFLAGS_NODEBUG := -Cfe
+LFLAGS := ${LFLAGS_${DEBUG_MODE}}
+
+VERBOSE :=
+VERBOSE_ := @
+Q := ${VERBOSE_${VERBOSE}}
+
+all: ${TARGET}
+
+${TARGET}: offside-rule-with-brace.yy.c
+	${Q}${CC} ${CFLAGS} -o $@ $<
+
+%.yy.c: %.l
+	${Q}${LEX} ${LFLAGS} -o $@ $<
+
+clean:
+	${Q}rm -f ${TARGET} *.yy.c

README.md

@@ -0,0 +1,13 @@
+# Offside Rule with Brace
+
+There are 5 different indentation tokens:
+- `FRONT_INDENTED`
+    - Increases indentation level
+- `NO_INDENTED`
+    - Do not affect indentation level
+- `BACK_INDENTED`
+    - Decreases indentation level
+- `SEMI_NO_INDENTED`
+    - Do not affect indentation level
+- `SEMI_BACK_INDENTED`
+    - Decreases indentation **width**