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‎.gitignore

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build

‎COPYING

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Large diffs are not rendered by default.

‎Makefile

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.POSIX:
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.SUFFIXES:
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OUTDIR=.build
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include $(OUTDIR)/config.mk
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include $(OUTDIR)/cppcache
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harec: $(harec_objects)
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@printf 'CCLD\t$@\n'
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@$(CC) $(LDFLAGS) -o $@ $(harec_objects) $(LIBS)
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.SUFFIXES: .c .o .scd .1 .5
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.c.o:
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@printf 'CC\t$@\n'
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@touch $(OUTDIR)/cppcache
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@grep $< $(OUTDIR)/cppcache >/dev/null || \
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$(CPP) $(CFLAGS) -MM -MT $@ $< >> $(OUTDIR)/cppcache
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@$(CC) -c $(CFLAGS) -o $@ $<
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docs:
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clean:
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@rm -f harec $(harec_objects)
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distclean: clean
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@rm -rf "$(OUTDIR)"
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install:
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.PHONY: docs clean distclean install

‎config.sh

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outdir=${OUTDIR:-.build}
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srcdir=${SRCDIR:-$(dirname "$0")}
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AR=${AR:-ar}
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AS=${AS:-as}
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CC=${CC:-cc}
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CFLAGS=${CFLAGS:-}
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LD=${LD:-ld}
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SCDOC=${SCDOC:-scdoc}
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for arg
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do
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case "$arg" in
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--bindir=*)
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BINDIR=${arg#*=}
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;;
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--libdir=*)
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LIBDIR=${arg#*=}
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;;
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--mandir=*)
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MANDIR=${arg#*=}
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;;
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--prefix=*)
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PREFIX=${arg#*=}
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if [ "$PREFIX" = "/usr" ]
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then
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SYSCONFDIR=/etc
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fi
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;;
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--sharedir=*)
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SHAREDIR=${arg#*=}
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;;
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--sysconfdir=*)
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SYSCONFDIR=${arg#*=}
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;;
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esac
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done
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subdir() {
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eval ". $srcdir/$1/configure"
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}
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genrules() {
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target="$1"
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shift
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printf '# Begin generated rules for %s\n' "$target"
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for file in "$@"
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do
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ext="${file#*.}"
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file="${file%.*}"
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deps=
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printf '%s.o: %s.%s%s\n' "$file" "$file" "$ext" "$deps"
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done
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printf '%s_objects=\\\n' "$target"
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n=0
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for file in "$@"
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do
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file="${file%.*}"
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n=$((n+1))
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if [ $n -eq $# ]
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then
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printf '\t%s.o\n' "$file"
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else
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printf '\t%s.o \\\n' "$file"
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fi
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done
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printf '# End generated rules for %s\n' "$target"
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}
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append_cflags() {
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for flag
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do
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CFLAGS="$(printf '%s \\\n\t%s' "$CFLAGS" "$flag")"
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done
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}
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test_cflags() {
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[ ! -e "$outdir"/check.c ] && cat <<-EOF > "$outdir"/check.c
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int main(void) { return 0; }
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EOF
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werror=""
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case "$CFLAGS" in
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*-Werror*)
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werror="-Werror"
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;;
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esac
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if $CC $werror "$@" -o /dev/null "$outdir"/check.c >/dev/null 2>&1
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then
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append_cflags "$@"
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else
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return 1
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fi
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}
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find_library() {
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name="$1"
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pc="$2"
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printf "Checking for %s... " "$name"
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if ! pkg-config "$pc" 2>/dev/null
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then
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printf "NOT FOUND\n"
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printf "Tried pkg-config %s\n" "$pc"
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return 1
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fi
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printf "OK\n"
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CFLAGS="$CFLAGS $(pkg-config --cflags "$pc")"
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LIBS="$LIBS $(pkg-config --libs "$pc")"
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}
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docs() { true; }
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run_configure() {
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mkdir -p $outdir
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for flag in -g -std=c11 -D_XOPEN_SOURCE=700 \
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-Wall -Wextra -Werror -pedantic \
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-Wno-unused-parameter
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do
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printf "Checking for %s... " "$flag"
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if test_cflags "$flag"
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then
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echo yes
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else
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echo no
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fi
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done
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printf "Checking for scdoc... "
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if scdoc -v >/dev/null 2>&1
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then
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echo yes
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all="$all docs"
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else
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echo no
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fi
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printf "Creating $outdir/config.mk... "
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cat <<-EOF > "$outdir"/config.mk
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CC=$CC
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SCDOC=$SCDOC
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LIBS=$LIBS
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PREFIX=${PREFIX:-/usr/local}
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OUTDIR=${outdir}
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SRCDIR=${srcdir}
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BINDIR?=${BINDIR:-\$(PREFIX)/bin}
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SHAREDIR?=${SHAREDIR:-\$(PREFIX)/share}
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SYSCONFDIR?=${SYSCONFDIR:-\$(PREFIX)/etc}
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LIBDIR?=${LIBDIR:-\$(PREFIX)/lib}
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MANDIR?=${MANDIR:-\$(PREFIX)/share/man}
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VARLIBDIR?=${MANDIR:-\$(PREFIX)/var/lib}
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CACHE=\$(OUTDIR)/cache
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CFLAGS=${CFLAGS}
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CFLAGS+=-Iinclude -I\$(OUTDIR)
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CFLAGS+=-DPREFIX='"\$(PREFIX)"'
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CFLAGS+=-DLIBDIR='"\$(LIBDIR)"'
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CFLAGS+=-DVARLIBDIR='"\$(VARLIBDIR)"'
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CFLAGS+=-DSYSCONFDIR='"\$(SYSCONFDIR)"'
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all: ${all}
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EOF
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for target in $all
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do
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$target >>"$outdir"/config.mk
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done
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echo done
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touch $outdir/cppcache
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if [ "$srcdir" = "." ]
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then
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return
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fi
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populate() (
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path="$1"
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mkdir -p "${path#$srcdir/}"
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fullpath() ( cd "$1" && pwd )
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for orig in "$path"/*
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do
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link="${orig#$srcdir/}"
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if [ -d "$orig" ]
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then
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mkdir -p $link
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populate "$orig"
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elif [ -f "$orig" ]
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then
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ln -sf "$(fullpath "$path")"/"$(basename "$orig")" "$link"
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fi
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done
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)
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printf "Populating build dir... "
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populate "$srcdir/include"
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populate "$srcdir/src"
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populate "$srcdir/doc"
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ln -sf "$srcdir"/Makefile ./
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echo done
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}

‎configure

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#!/bin/sh -e
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srcdir=${SRCDIR:-$(dirname "$0")}
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eval ". $srcdir/config.sh"
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harec() {
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genrules harec \
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src/lex.c \
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src/main.c
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}
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all="harec"
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run_configure

‎include/lex.h

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#ifndef HAREC_LEX_H
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#define HAREC_LEX_H
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// Keep sorted
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enum lexical_token {
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T_AS,
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T_ASSERT,
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T_BOOL,
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T_BREAK,
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T_CHAR,
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T_CONST,
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T_CONTINUE,
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T_DEF,
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T_ELSE,
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T_ENUM,
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T_EXPORT,
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T_F32,
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T_F64,
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T_FALSE,
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T_FN,
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T_FOR,
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T_I16,
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T_I32,
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T_I64,
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T_I8,
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T_IF,
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T_INT,
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T_IS,
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T_LEN,
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T_LET,
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T_MATCH,
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T_NULL,
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T_NULLABLE,
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T_RETURN,
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T_SIZE,
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T_STATIC,
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T_STR,
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T_STRUCT,
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T_SWITCH,
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T_TRUE,
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T_U16,
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T_U32,
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T_U64,
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T_U8,
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T_UINT,
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T_UINTPTR,
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T_UNION,
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T_USE,
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T_VOID,
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T_WHILE,
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// Operators
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T_ANDEQ,
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T_BAND,
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T_BNOT,
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T_BOR,
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T_CASE,
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T_COLON,
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T_COMMA,
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T_DIV,
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T_DIVEQ,
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T_DOT,
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T_DOUBLE_COLON,
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T_ELLIPSIS,
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T_EQUAL,
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T_GREATER,
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T_GTR_EQL,
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T_LAND,
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T_LBRACE,
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T_LBRACKET,
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T_LEQUAL,
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T_LESS,
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T_LESS_EQL,
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T_LNOT,
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T_LOR,
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T_LPAREN,
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T_LSHIFT,
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T_LSHIFTEQ,
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T_MINUS,
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T_MINUSEQ,
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T_MODEQ,
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T_MODULO,
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T_NEQUAL,
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T_OREQ,
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T_PLUS,
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T_PLUSEQ,
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T_RBRACE,
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T_RBRACKET,
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T_RPAREN,
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T_RSHIFT,
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T_RSHIFTEQ,
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T_SEMICOLON,
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T_SLICE,
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T_TIMES,
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T_TIMESEQ,
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T_XOREQ,
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// Tokens with additional information
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T_NAME,
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T_LITERAL,
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// Magic tokens
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T_EOF,
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T_ERROR,
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};
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struct token {
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enum lexical_token token;
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union {
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char *name;
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};
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};
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struct lexer {
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FILE *in;
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char *buf;
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size_t bufsz, buflen;
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};
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void lex_init(struct lexer *lexer, FILE *f);
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int lex(struct lexer *lexer, struct token *out);
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void token_finish(struct token *tok);
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const char *token_str(const struct token *tok);
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#endif

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