closed #18
This commit is contained in:
commit
c444198efc
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@ -12,3 +12,6 @@ indent_size = 2
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[*.sh]
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[*.sh]
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indent_size = 2
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indent_size = 2
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[configure]
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indent_size = 2
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2
.gitignore
vendored
2
.gitignore
vendored
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@ -1 +1,3 @@
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build/
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build/
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dist/
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*.mk
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80
GNUmakefile
80
GNUmakefile
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@ -1,80 +0,0 @@
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# Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
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# Copyright (c) 2023 DTB <trinity@trinity.moe>
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# Copyright (c) 2023 Sasha Koshka <sashakoshka@tebibyte.media>
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# SPDX-License-Identifier: FSFAP
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice and this
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||||||
# notice are preserved. This file is offered as-is, without any warranty.
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# If we want to use POSIX make we can’t use ifeq
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# .POSIX:
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# .PRAGMA: posix_202x
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.PHONY: clean
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.PHONY: install
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.PHONY: test
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PREFIX=/usr/local
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CC=cc
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CFLAGS=-O3 -Lbuild/lib -idirafter include
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RUSTC=rustc +nightly
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RUSTCFLAGS=-Zlocation-detail=none -Copt-level=z -Ccodegen-units=1 \
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-Cpanic=abort -Clto=y -Cstrip=symbols -Ctarget-cpu=native \
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-Clink-args=-Wl,-n,-N,--no-dynamic-linker,--no-pie,--build-id=none
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ifeq ($(CC), gcc)
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CFLAGS=-O3 -s -Wl,-z,noseparate-code,-z,nosectionheader -flto -Lbuild/lib \
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-idirafter include
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endif
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ifeq ($(CC), clang)
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CFLAGS=-O3 -Wall -Lbuild/lib -idirafter include
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endif
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ifeq ($(CC), tcc)
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CFLAGS=-O3 -s -Wl -flto -Lbuild/lib -idirafter include
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endif
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build: build_dir false intcmp scrut str strcmp true
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build_dir:
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mkdir -p build/o build/lib build/bin
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clean:
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rm -rf build/
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install: build
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mkdir -p $(PREFIX)/bin $(PREFIX)/lib
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mkdir -p $(PREFIX)/share/man/man1 $(PREFIX)/share/man/man3
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# cp -f build/lib/*.so $(PREFIX)/lib/
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cp -f build/bin/* $(PREFIX)/bin/
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cp -f docs/*.1 $(PREFIX)/share/man/man1/
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# cp -f docs/*.3 $(PREFIX)/share/man/man3/
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test: build
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tests/cc-compat.sh
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tests/posix-compat.sh
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dj: src/dj.c build_dir
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$(CC) $(CFLAGS) -o build/bin/dj src/dj.c
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false: src/false.rs build_dir
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$(RUSTC) $(RUSTCFLAGS) -o build/bin/false src/false.rs
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intcmp: src/intcmp.c build_dir
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$(CC) $(CFLAGS) -o build/bin/intcmp src/intcmp.c
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scrut: src/scrut.c build_dir
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$(CC) $(CFLAGS) -o build/bin/scrut src/scrut.c
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str: src/str.c build_dir
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$(CC) $(CFLAGS) -o build/bin/str src/str.c
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strcmp: src/strcmp.c build_dir
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$(CC) $(CFLAGS) -o build/bin/strcmp src/strcmp.c
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true: src/true.rs build_dir
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$(RUSTC) $(RUSTCFLAGS) -o build/bin/true src/true.rs
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93
Makefile
Normal file
93
Makefile
Normal file
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@ -0,0 +1,93 @@
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# Copyright (c) 2023–2024 Emma Tebibyte <emma@tebibyte.media>
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# Copyright (c) 2023 DTB <trinity@trinity.moe>
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# Copyright (c) 2023 Sasha Koshka <sashakoshka@tebibyte.media>
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# SPDX-License-Identifier: FSFAP
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#
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||||||
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# Copying and distribution of this file, with or without modification, are
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||||||
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# permitted in any medium without royalty provided the copyright notice and this
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||||||
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# notice are preserved. This file is offered as-is, without any warranty.
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||||||
|
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||||||
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.POSIX:
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.PRAGMA: posix_202x # future POSIX standard support à la pdpmake(1)
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.PHONY: all
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.PHONY: clean
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||||||
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.PHONY: install
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.PHONY: test
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PREFIX=/usr/local
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CC=cc
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RUSTC=rustc
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# to build, first run ./configure
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include *.mk
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all: dj false fop intcmp scrut str strcmp true
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build:
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# keep build/include until bindgen(1) has stdin support
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# https://github.com/rust-lang/rust-bindgen/issues/2703
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mkdir -p build/bin build/include build/lib build/o build/test
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clean:
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rm -rf build/ dist/
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dist: all
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mkdir -p \
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dist/bin \
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dist/man/man1 \
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# dist/$(PREFIX)/lib \
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# dist/$(PREFIX)/man/man3
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cp build/bin/* dist/bin/
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# cp build/lib/* dist/$(PREFIX)/lib/
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cp docs/*.1 dist/man/man1/
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# cp docs/*.3 dist/$(PREFIX)/man/man3/
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install: dist
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mkdir -p $(PREFIX)
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cp -r dist/* $(PREFIX)/
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test: build
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tests/cc-compat.sh
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tests/posix-compat.sh
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$(RUSTC) --test src/getopt-rs/lib.rs -o build/test/getopt
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sysexits: build
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# bandage solution until bindgen(1) gets stdin support
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printf '#define EXIT_FAILURE 1\n' | cat - include/sysexits.h \
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> build/include/sysexits.h
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bindgen --default-macro-constant-type signed --use-core --formatter=none \
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"$$(printf '#include <sysexits.h>\n' \
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| cpp -M -idirafter "build/include" - \
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| sed 's/ /\n/g' | grep sysexits.h)" \
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| $(RUSTC) $(RUSTCFLAGS) --crate-type lib -o build/o/libsysexits.rlib -
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libgetopt: src/getopt-rs/lib.rs
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$(RUSTC) $(RUSTCFLAGS) --crate-type=lib --crate-name=getopt \
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-o build/o/libgetopt.rlib src/getopt-rs/lib.rs
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dj: src/dj.c build_dir
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$(CC) $(CFLAGS) -o build/bin/dj src/dj.c
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false: src/false.rs build
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$(RUSTC) $(RUSTFLAGS) -o build/bin/false src/false.rs
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fop: src/fop.rs build libgetopt sysexits
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$(RUSTC) $(RUSTFLAGS) --extern getopt=build/o/libgetopt.rlib \
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-o build/bin/fop src/fop.rs
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intcmp: src/intcmp.c build
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$(CC) $(CFLAGS) -o build/bin/intcmp src/intcmp.c
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scrut: src/scrut.c build
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$(CC) $(CFLAGS) -o build/bin/scrut src/scrut.c
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str: src/str.c build
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$(CC) $(CFLAGS) -o build/bin/str src/str.c
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strcmp: src/strcmp.c build
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$(CC) $(CFLAGS) -o build/bin/strcmp src/strcmp.c
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true: src/true.rs build
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$(RUSTC) $(RUSTFLAGS) -o build/bin/true src/true.rs
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39
configure
vendored
Executable file
39
configure
vendored
Executable file
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@ -0,0 +1,39 @@
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#!/bin/sh
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# Copyright (c) 2023–2024 Emma Tebibyte <emma@tebibyte.media>
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# SPDX-License-Identifier: FSFAP
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||||||
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#
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||||||
|
# Copying and distribution of this file, with or without modification, are
|
||||||
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# permitted in any medium without royalty provided the copyright notice and this
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||||||
|
# notice are preserved. This file is offered as-is, without any warranty.
|
||||||
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||||||
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set -e
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CFLAGS='-Lbuild/lib -idirafter include -O3'
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RUSTFLAGS='-Copt-level=z -Ccodegen-units=1 -Cpanic=abort -Clto=y \
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-Cstrip=symbols -Ctarget-cpu=native \
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||||||
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--extern sysexits=build/o/libsysexits.rlib'
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||||||
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case "$@" in
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||||||
|
clang)
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CFLAGS="$CFLAGS -Wall"
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||||||
|
;;
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||||||
|
clean)
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||||||
|
rm *.mk || true
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||||||
|
exit 0
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||||||
|
;;
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||||||
|
gcc)
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||||||
|
CFLAGS="$CFLAGS -s -Wl,-z,noseparate-code,-z,nosectionheader -flto"
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||||||
|
;;
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||||||
|
'rustc +nightly')
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||||||
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RUSTFLAGS="+nightly -Zlocation-detail=none $RUSTFLAGS"
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||||||
|
;;
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||||||
|
'') ;;
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||||||
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*)
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||||||
|
printf 'Usage: %s [compiler]\n' "$0"
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||||||
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exit 64 # sysexits.h(3) EX_USAGE
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||||||
|
;;
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||||||
|
esac
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||||||
|
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||||||
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printf 'CFLAGS=%s\n' "$CFLAGS" >cc.mk
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||||||
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printf 'RUSTFLAGS=%s\n' "$RUSTFLAGS" >rustc.mk
|
96
src/fop.rs
Normal file
96
src/fop.rs
Normal file
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@ -0,0 +1,96 @@
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||||||
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/*
|
||||||
|
* Copyright (c) 2023–2024 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*/
|
||||||
|
|
||||||
|
use std::{
|
||||||
|
env::args,
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||||||
|
io::{ Read, stdin, Write },
|
||||||
|
process::{ Command, exit, Stdio },
|
||||||
|
};
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||||||
|
|
||||||
|
extern crate sysexits;
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||||||
|
extern crate getopt;
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||||||
|
|
||||||
|
use getopt::{ Opt, Parser };
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||||||
|
use sysexits::{ EX_DATAERR, EX_USAGE };
|
||||||
|
|
||||||
|
fn main() {
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||||||
|
let argv = args().collect::<Vec<String>>();
|
||||||
|
let mut d = '␞';
|
||||||
|
let mut arg_parser = Parser::new(&argv, "d:");
|
||||||
|
|
||||||
|
while let Some(opt) = arg_parser.next() {
|
||||||
|
match opt {
|
||||||
|
Ok(Opt('d', Some(arg))) => {
|
||||||
|
let arg_char = arg.chars().collect::<Vec<char>>();
|
||||||
|
if arg_char.len() > 1 {
|
||||||
|
eprintln!("{}: {}: Not a character.", argv[0], arg);
|
||||||
|
exit(EX_USAGE);
|
||||||
|
} else { d = arg_char[0]; }
|
||||||
|
},
|
||||||
|
_ => {},
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
let index_arg = arg_parser.index();
|
||||||
|
let command_arg = arg_parser.index() + 1;
|
||||||
|
|
||||||
|
argv.get(command_arg).unwrap_or_else(|| {
|
||||||
|
eprintln!("Usage: {} [-d delimiter] index command [args...]", argv[0]);
|
||||||
|
exit(EX_USAGE);
|
||||||
|
});
|
||||||
|
|
||||||
|
let index = argv[index_arg].parse::<usize>().unwrap_or_else(|_| {
|
||||||
|
eprintln!("{}: {}: Not an integer.", argv[0], argv[1]);
|
||||||
|
exit(EX_DATAERR);
|
||||||
|
});
|
||||||
|
|
||||||
|
let mut buf = String::new();
|
||||||
|
stdin().read_to_string(&mut buf).unwrap();
|
||||||
|
let mut fields = buf.split(d).collect::<Vec<&str>>();
|
||||||
|
|
||||||
|
let opts = argv.iter().clone().skip(command_arg + 1).collect::<Vec<&String>>();
|
||||||
|
|
||||||
|
let mut spawned = Command::new(argv.get(command_arg).unwrap())
|
||||||
|
.args(opts)
|
||||||
|
.stdin(Stdio::piped())
|
||||||
|
.stdout(Stdio::piped())
|
||||||
|
.spawn()
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
let field = fields.get(index).unwrap_or_else(|| {
|
||||||
|
eprintln!(
|
||||||
|
"{}: {}: No such index in input.",
|
||||||
|
argv[0],
|
||||||
|
index.to_string()
|
||||||
|
);
|
||||||
|
exit(EX_DATAERR);
|
||||||
|
});
|
||||||
|
|
||||||
|
if let Some(mut child_stdin) = spawned.stdin.take() {
|
||||||
|
child_stdin.write_all(field.as_bytes()).unwrap();
|
||||||
|
drop(child_stdin);
|
||||||
|
}
|
||||||
|
|
||||||
|
let output = spawned.wait_with_output().unwrap();
|
||||||
|
|
||||||
|
let new_field = String::from_utf8(output.stdout).unwrap();
|
||||||
|
|
||||||
|
fields[index] = &new_field;
|
||||||
|
|
||||||
|
print!("{}", fields.join(&d.to_string()));
|
||||||
|
}
|
95
src/getopt-rs/error.rs
Normal file
95
src/getopt-rs/error.rs
Normal file
|
@ -0,0 +1,95 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*
|
||||||
|
* This file incorporates work covered by the following copyright and permission
|
||||||
|
* notice:
|
||||||
|
* The Clear BSD License
|
||||||
|
*
|
||||||
|
* Copyright © 2017-2023 David Wildasin
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted (subject to the limitations in the disclaimer
|
||||||
|
* below) provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* * Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer.
|
||||||
|
*
|
||||||
|
* * Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* * Neither the name of the copyright holder nor the names of its
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
|
||||||
|
* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
use std::{ error, fmt };
|
||||||
|
|
||||||
|
use crate::ErrorKind::{ self, * };
|
||||||
|
|
||||||
|
/// A basic error type for [`Parser`](struct.Parser.html)
|
||||||
|
#[derive(Debug, Eq, PartialEq)]
|
||||||
|
pub struct Error {
|
||||||
|
culprit: char,
|
||||||
|
kind: ErrorKind,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Error {
|
||||||
|
/// Creates a new error using a known kind and the character that caused the
|
||||||
|
/// issue.
|
||||||
|
pub fn new(kind: ErrorKind, culprit: char) -> Self {
|
||||||
|
Self { culprit, kind }
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Returns the [`ErrorKind`](enum.ErrorKind.html) for this error.
|
||||||
|
pub fn kind(self) -> ErrorKind {
|
||||||
|
self.kind
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl fmt::Display for Error {
|
||||||
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||||
|
match self.kind {
|
||||||
|
MissingArgument => write!(
|
||||||
|
f,
|
||||||
|
"option requires an argument -- {:?}",
|
||||||
|
self.culprit,
|
||||||
|
),
|
||||||
|
UnknownOption => write!(f, "unknown option -- {:?}", self.culprit),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl error::Error for Error {
|
||||||
|
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
|
||||||
|
None
|
||||||
|
}
|
||||||
|
}
|
61
src/getopt-rs/errorkind.rs
Normal file
61
src/getopt-rs/errorkind.rs
Normal file
|
@ -0,0 +1,61 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*
|
||||||
|
* This file incorporates work covered by the following copyright and permission
|
||||||
|
* notice:
|
||||||
|
* The Clear BSD License
|
||||||
|
*
|
||||||
|
* Copyright © 2017-2023 David Wildasin
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted (subject to the limitations in the disclaimer
|
||||||
|
* below) provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* * Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer.
|
||||||
|
*
|
||||||
|
* * Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* * Neither the name of the copyright holder nor the names of its
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
|
||||||
|
* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/// What kinds of errors [`Parser`](struct.Parser.html) can return.
|
||||||
|
#[derive(Debug, Eq, PartialEq)]
|
||||||
|
pub enum ErrorKind {
|
||||||
|
/// An argument was not found for an option that was expecting one.
|
||||||
|
MissingArgument,
|
||||||
|
/// An unknown option character was encountered.
|
||||||
|
UnknownOption,
|
||||||
|
}
|
72
src/getopt-rs/lib.rs
Normal file
72
src/getopt-rs/lib.rs
Normal file
|
@ -0,0 +1,72 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*
|
||||||
|
* This file incorporates work covered by the following copyright and permission
|
||||||
|
* notice:
|
||||||
|
* The Clear BSD License
|
||||||
|
*
|
||||||
|
* Copyright © 2017-2023 David Wildasin
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted (subject to the limitations in the disclaimer
|
||||||
|
* below) provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* * Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer.
|
||||||
|
*
|
||||||
|
* * Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* * Neither the name of the copyright holder nor the names of its
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
|
||||||
|
* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
//! # getopt
|
||||||
|
//!
|
||||||
|
//! `getopt` provides a minimal, (essentially) POSIX-compliant option parser.
|
||||||
|
|
||||||
|
pub use crate::{
|
||||||
|
error::Error,
|
||||||
|
errorkind::ErrorKind,
|
||||||
|
opt::Opt,
|
||||||
|
parser::Parser,
|
||||||
|
result::Result
|
||||||
|
};
|
||||||
|
|
||||||
|
mod error;
|
||||||
|
mod errorkind;
|
||||||
|
mod opt;
|
||||||
|
mod parser;
|
||||||
|
mod result;
|
||||||
|
#[cfg(test)]
|
||||||
|
mod tests;
|
89
src/getopt-rs/opt.rs
Normal file
89
src/getopt-rs/opt.rs
Normal file
|
@ -0,0 +1,89 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*
|
||||||
|
* This file incorporates work covered by the following copyright and permission
|
||||||
|
* notice:
|
||||||
|
* The Clear BSD License
|
||||||
|
*
|
||||||
|
* Copyright © 2017-2023 David Wildasin
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted (subject to the limitations in the disclaimer
|
||||||
|
* below) provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* * Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer.
|
||||||
|
*
|
||||||
|
* * Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* * Neither the name of the copyright holder nor the names of its
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
|
||||||
|
* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
use std::fmt;
|
||||||
|
|
||||||
|
/// A single option.
|
||||||
|
///
|
||||||
|
/// For `Opt(x, y)`:
|
||||||
|
/// - `x` is the character representing the option.
|
||||||
|
/// - `y` is `Some` string, or `None` if no argument was expected.
|
||||||
|
///
|
||||||
|
/// # Example
|
||||||
|
///
|
||||||
|
/// ```
|
||||||
|
/// # fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||||
|
/// use getopt::Opt;
|
||||||
|
///
|
||||||
|
/// // args = ["program", "-abc", "foo"];
|
||||||
|
/// # let args: Vec<String> = vec!["program", "-abc", "foo"]
|
||||||
|
/// # .into_iter()
|
||||||
|
/// # .map(String::from)
|
||||||
|
/// # .collect();
|
||||||
|
/// let optstring = "ab:c";
|
||||||
|
/// let mut opts = getopt::Parser::new(&args, optstring);
|
||||||
|
///
|
||||||
|
/// assert_eq!(Opt('a', None), opts.next().transpose()?.unwrap());
|
||||||
|
/// assert_eq!(Opt('b', Some("c".to_string())), opts.next().transpose()?.unwrap());
|
||||||
|
/// assert_eq!(None, opts.next().transpose()?);
|
||||||
|
/// # Ok(())
|
||||||
|
/// # }
|
||||||
|
/// ```
|
||||||
|
#[derive(Debug, Eq, Ord, PartialEq, PartialOrd)]
|
||||||
|
pub struct Opt(pub char, pub Option<String>);
|
||||||
|
|
||||||
|
impl fmt::Display for Opt {
|
||||||
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||||
|
write!(f, "Opt({:?}, {:?})", self.0, self.1)
|
||||||
|
}
|
||||||
|
}
|
382
src/getopt-rs/parser.rs
Normal file
382
src/getopt-rs/parser.rs
Normal file
|
@ -0,0 +1,382 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*
|
||||||
|
* This file incorporates work covered by the following copyright and permission
|
||||||
|
* notice:
|
||||||
|
* The Clear BSD License
|
||||||
|
*
|
||||||
|
* Copyright © 2017-2023 David Wildasin
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted (subject to the limitations in the disclaimer
|
||||||
|
* below) provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* * Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer.
|
||||||
|
*
|
||||||
|
* * Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* * Neither the name of the copyright holder nor the names of its
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
|
||||||
|
* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
use std::collections::HashMap;
|
||||||
|
|
||||||
|
use crate::{ error::Error, errorkind::ErrorKind, opt::Opt, result::Result };
|
||||||
|
|
||||||
|
/// The core of the `getopt` crate.
|
||||||
|
///
|
||||||
|
/// `Parser` is implemented as an iterator over the options present in the given
|
||||||
|
/// argument vector.
|
||||||
|
///
|
||||||
|
/// The method [`next`](#method.next) does the heavy lifting.
|
||||||
|
///
|
||||||
|
/// # Examples
|
||||||
|
///
|
||||||
|
/// ## Simplified usage:
|
||||||
|
/// ```
|
||||||
|
/// # fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||||
|
/// use getopt::Opt;
|
||||||
|
///
|
||||||
|
/// // args = ["program", "-abc", "foo"];
|
||||||
|
/// # let args: Vec<String> = vec!["program", "-abc", "foo"]
|
||||||
|
/// # .into_iter()
|
||||||
|
/// # .map(String::from)
|
||||||
|
/// # .collect();
|
||||||
|
/// let mut opts = getopt::Parser::new(&args, "ab:c");
|
||||||
|
///
|
||||||
|
/// assert_eq!(Some(Opt('a', None)), opts.next().transpose()?);
|
||||||
|
/// assert_eq!(1, opts.index());
|
||||||
|
/// assert_eq!(Some(Opt('b', Some("c".to_string()))), opts.next().transpose()?);
|
||||||
|
/// assert_eq!(2, opts.index());
|
||||||
|
/// assert_eq!(None, opts.next());
|
||||||
|
/// assert_eq!(2, opts.index());
|
||||||
|
/// assert_eq!("foo", args[opts.index()]);
|
||||||
|
/// # Ok(())
|
||||||
|
/// # }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// ## A more idiomatic example:
|
||||||
|
/// ```
|
||||||
|
/// # fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||||
|
/// use getopt::Opt;
|
||||||
|
///
|
||||||
|
/// // args = ["program", "-abc", "-d", "foo", "-e", "bar"];
|
||||||
|
/// # let mut args: Vec<String> = vec!["program", "-abc", "-d", "foo", "-e", "bar"]
|
||||||
|
/// # .into_iter()
|
||||||
|
/// # .map(String::from)
|
||||||
|
/// # .collect();
|
||||||
|
/// let mut opts = getopt::Parser::new(&args, "ab:cd:e");
|
||||||
|
///
|
||||||
|
/// let mut a_flag = false;
|
||||||
|
/// let mut b_flag = String::new();
|
||||||
|
/// let mut c_flag = false;
|
||||||
|
/// let mut d_flag = String::new();
|
||||||
|
/// let mut e_flag = false;
|
||||||
|
///
|
||||||
|
/// loop {
|
||||||
|
/// match opts.next().transpose()? {
|
||||||
|
/// None => break,
|
||||||
|
/// Some(opt) => match opt {
|
||||||
|
/// Opt('a', None) => a_flag = true,
|
||||||
|
/// Opt('b', Some(arg)) => b_flag = arg.clone(),
|
||||||
|
/// Opt('c', None) => c_flag = true,
|
||||||
|
/// Opt('d', Some(arg)) => d_flag = arg.clone(),
|
||||||
|
/// Opt('e', None) => e_flag = true,
|
||||||
|
/// _ => unreachable!(),
|
||||||
|
/// },
|
||||||
|
/// }
|
||||||
|
/// }
|
||||||
|
///
|
||||||
|
/// let new_args = args.split_off(opts.index());
|
||||||
|
///
|
||||||
|
/// assert_eq!(true, a_flag);
|
||||||
|
/// assert_eq!("c", b_flag);
|
||||||
|
/// assert_eq!(false, c_flag);
|
||||||
|
/// assert_eq!("foo", d_flag);
|
||||||
|
/// assert_eq!(true, e_flag);
|
||||||
|
///
|
||||||
|
/// assert_eq!(1, new_args.len());
|
||||||
|
/// assert_eq!("bar", new_args.first().unwrap());
|
||||||
|
/// # Ok(())
|
||||||
|
/// # }
|
||||||
|
/// ```
|
||||||
|
#[derive(Debug, Eq, PartialEq)]
|
||||||
|
pub struct Parser {
|
||||||
|
opts: HashMap<char, bool>,
|
||||||
|
args: Vec<Vec<char>>,
|
||||||
|
index: usize,
|
||||||
|
point: usize,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Parser {
|
||||||
|
/// Create a new `Parser`, which will process the arguments in `args`
|
||||||
|
/// according to the options specified in `optstring`.
|
||||||
|
///
|
||||||
|
/// For compatibility with
|
||||||
|
/// [`std::env::args`](https://doc.rust-lang.org/std/env/fn.args.html),
|
||||||
|
/// valid options are expected to begin at the second element of `args`, and
|
||||||
|
/// `index` is
|
||||||
|
/// initialised to `1`.
|
||||||
|
/// If `args` is structured differently, be sure to call
|
||||||
|
/// [`set_index`](#method.set_index) before the first invocation of
|
||||||
|
/// [`next`](#method.next).
|
||||||
|
///
|
||||||
|
/// `optstring` is a string of recognised option characters; if a character
|
||||||
|
/// is followed by a colon (`:`), that option takes an argument.
|
||||||
|
///
|
||||||
|
/// # Note:
|
||||||
|
/// Transforming the OS-specific argument strings into a vector of `String`s
|
||||||
|
/// is the sole responsibility of the calling program, as it involves some
|
||||||
|
/// level of potential information loss (which this crate does not presume
|
||||||
|
/// to handle unilaterally) and error handling (which would complicate the
|
||||||
|
/// interface).
|
||||||
|
pub fn new(args: &[String], optstring: &str) -> Self {
|
||||||
|
let optstring: Vec<char> = optstring.chars().collect();
|
||||||
|
let mut opts = HashMap::new();
|
||||||
|
let mut i = 0;
|
||||||
|
let len = optstring.len();
|
||||||
|
|
||||||
|
while i < len {
|
||||||
|
let j = i + 1;
|
||||||
|
|
||||||
|
if j < len && optstring[j] == ':' {
|
||||||
|
opts.insert(optstring[i], true);
|
||||||
|
i += 1;
|
||||||
|
} else {
|
||||||
|
opts.insert(optstring[i], false);
|
||||||
|
}
|
||||||
|
i += 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
Self {
|
||||||
|
opts,
|
||||||
|
// "explode" the args into a vector of character vectors, to allow
|
||||||
|
// indexing
|
||||||
|
args: args.iter().map(|e| e.chars().collect()).collect(),
|
||||||
|
index: 1,
|
||||||
|
point: 0,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Return the current `index` of the parser.
|
||||||
|
///
|
||||||
|
/// `args[index]` will always point to the the next element of `args`; when
|
||||||
|
/// the parser is
|
||||||
|
/// finished with an element, it will increment `index`.
|
||||||
|
///
|
||||||
|
/// After the last option has been parsed (and [`next`](#method.next) is
|
||||||
|
/// returning `None`),
|
||||||
|
/// `index` will point to the first non-option argument.
|
||||||
|
pub fn index(&self) -> usize {
|
||||||
|
self.index
|
||||||
|
}
|
||||||
|
|
||||||
|
// `point` must be reset to 0 whenever `index` is changed
|
||||||
|
|
||||||
|
/// Modify the current `index` of the parser.
|
||||||
|
pub fn set_index(&mut self, value: usize) {
|
||||||
|
self.index = value;
|
||||||
|
self.point = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Increment the current `index` of the parser.
|
||||||
|
///
|
||||||
|
/// This use case is common enough to warrant its own optimised method.
|
||||||
|
pub fn incr_index(&mut self) {
|
||||||
|
self.index += 1;
|
||||||
|
self.point = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Iterator for Parser {
|
||||||
|
type Item = Result<Opt>;
|
||||||
|
|
||||||
|
/// Returns the next option, if any.
|
||||||
|
///
|
||||||
|
/// Returns an [`Error`](struct.Error.html) if an unexpected option is
|
||||||
|
/// encountered or if an
|
||||||
|
/// expected argument is not found.
|
||||||
|
///
|
||||||
|
/// Parsing stops at the first non-hyphenated argument; or at the first
|
||||||
|
/// argument matching "-";
|
||||||
|
/// or after the first argument matching "--".
|
||||||
|
///
|
||||||
|
/// When no more options are available, `next` returns `None`.
|
||||||
|
///
|
||||||
|
/// # Examples
|
||||||
|
///
|
||||||
|
/// ## "-"
|
||||||
|
/// ```
|
||||||
|
/// use getopt::Parser;
|
||||||
|
///
|
||||||
|
/// // args = ["program", "-", "-a"];
|
||||||
|
/// # let args: Vec<String> = vec!["program", "-", "-a"]
|
||||||
|
/// # .into_iter()
|
||||||
|
/// # .map(String::from)
|
||||||
|
/// # .collect();
|
||||||
|
/// let mut opts = Parser::new(&args, "a");
|
||||||
|
///
|
||||||
|
/// assert_eq!(None, opts.next());
|
||||||
|
/// assert_eq!("-", args[opts.index()]);
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// ## "--"
|
||||||
|
/// ```
|
||||||
|
/// use getopt::Parser;
|
||||||
|
///
|
||||||
|
/// // args = ["program", "--", "-a"];
|
||||||
|
/// # let args: Vec<String> = vec!["program", "--", "-a"]
|
||||||
|
/// # .into_iter()
|
||||||
|
/// # .map(String::from)
|
||||||
|
/// # .collect();
|
||||||
|
/// let mut opts = Parser::new(&args, "a");
|
||||||
|
///
|
||||||
|
/// assert_eq!(None, opts.next());
|
||||||
|
/// assert_eq!("-a", args[opts.index()]);
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// ## Unexpected option:
|
||||||
|
/// ```
|
||||||
|
/// use getopt::Parser;
|
||||||
|
///
|
||||||
|
/// // args = ["program", "-b"];
|
||||||
|
/// # let args: Vec<String> = vec!["program", "-b"]
|
||||||
|
/// # .into_iter()
|
||||||
|
/// # .map(String::from)
|
||||||
|
/// # .collect();
|
||||||
|
/// let mut opts = Parser::new(&args, "a");
|
||||||
|
///
|
||||||
|
/// assert_eq!(
|
||||||
|
/// "unknown option -- 'b'".to_string(),
|
||||||
|
/// opts.next().unwrap().unwrap_err().to_string()
|
||||||
|
/// );
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// ## Missing argument:
|
||||||
|
/// ```
|
||||||
|
/// use getopt::Parser;
|
||||||
|
///
|
||||||
|
/// // args = ["program", "-a"];
|
||||||
|
/// # let args: Vec<String> = vec!["program", "-a"]
|
||||||
|
/// # .into_iter()
|
||||||
|
/// # .map(String::from)
|
||||||
|
/// # .collect();
|
||||||
|
/// let mut opts = Parser::new(&args, "a:");
|
||||||
|
///
|
||||||
|
/// assert_eq!(
|
||||||
|
/// "option requires an argument -- 'a'".to_string(),
|
||||||
|
/// opts.next().unwrap().unwrap_err().to_string()
|
||||||
|
/// );
|
||||||
|
/// ```
|
||||||
|
fn next(&mut self) -> Option<Result<Opt>> {
|
||||||
|
if self.point == 0 {
|
||||||
|
/*
|
||||||
|
* Rationale excerpts below taken verbatim from "The Open Group Base
|
||||||
|
* Specifications Issue 7, 2018 edition", IEEE Std 1003.1-2017
|
||||||
|
* (Revision of IEEE Std 1003.1-2008).
|
||||||
|
* Copyright © 2001-2018 IEEE and The Open Group.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If, when getopt() is called:
|
||||||
|
* argv[optind] is a null pointer
|
||||||
|
* *argv[optind] is not the character '-'
|
||||||
|
* argv[optind] points to the string "-"
|
||||||
|
* getopt() shall return -1 without changing optind.
|
||||||
|
*/
|
||||||
|
if self.index >= self.args.len()
|
||||||
|
|| self.args[self.index].is_empty()
|
||||||
|
|| self.args[self.index][0] != '-'
|
||||||
|
|| self.args[self.index].len() == 1
|
||||||
|
{
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If:
|
||||||
|
* argv[optind] points to the string "--"
|
||||||
|
* getopt() shall return -1 after incrementing index.
|
||||||
|
*/
|
||||||
|
if self.args[self.index][1] == '-' && self.args[self.index].len() == 2 {
|
||||||
|
self.incr_index();
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
// move past the starting '-'
|
||||||
|
self.point += 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
let opt = self.args[self.index][self.point];
|
||||||
|
self.point += 1;
|
||||||
|
|
||||||
|
match self.opts.get(&opt) {
|
||||||
|
None => {
|
||||||
|
if self.point >= self.args[self.index].len() {
|
||||||
|
self.incr_index();
|
||||||
|
}
|
||||||
|
Some(Err(Error::new(ErrorKind::UnknownOption, opt)))
|
||||||
|
}
|
||||||
|
Some(false) => {
|
||||||
|
if self.point >= self.args[self.index].len() {
|
||||||
|
self.incr_index();
|
||||||
|
}
|
||||||
|
|
||||||
|
Some(Ok(Opt(opt, None)))
|
||||||
|
}
|
||||||
|
Some(true) => {
|
||||||
|
let arg: String = if self.point >= self.args[self.index].len() {
|
||||||
|
self.incr_index();
|
||||||
|
if self.index >= self.args.len() {
|
||||||
|
return Some(Err(Error::new(
|
||||||
|
ErrorKind::MissingArgument,
|
||||||
|
opt,
|
||||||
|
)));
|
||||||
|
}
|
||||||
|
self.args[self.index].iter().collect()
|
||||||
|
} else {
|
||||||
|
self.args[self.index]
|
||||||
|
.clone()
|
||||||
|
.split_off(self.point)
|
||||||
|
.iter()
|
||||||
|
.collect()
|
||||||
|
};
|
||||||
|
|
||||||
|
self.incr_index();
|
||||||
|
|
||||||
|
Some(Ok(Opt(opt, Some(arg))))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
59
src/getopt-rs/result.rs
Normal file
59
src/getopt-rs/result.rs
Normal file
|
@ -0,0 +1,59 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*
|
||||||
|
* This file incorporates work covered by the following copyright and permission
|
||||||
|
* notice:
|
||||||
|
* The Clear BSD License
|
||||||
|
*
|
||||||
|
* Copyright © 2017-2023 David Wildasin
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted (subject to the limitations in the disclaimer
|
||||||
|
* below) provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* * Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer.
|
||||||
|
*
|
||||||
|
* * Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* * Neither the name of the copyright holder nor the names of its
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
|
||||||
|
* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
use std::result;
|
||||||
|
|
||||||
|
use crate::error::Error;
|
||||||
|
|
||||||
|
/// A specialized `Result` type for use with [`Parser`](struct.Parser.html)
|
||||||
|
pub type Result<T> = result::Result<T, Error>;
|
228
src/getopt-rs/tests.rs
Normal file
228
src/getopt-rs/tests.rs
Normal file
|
@ -0,0 +1,228 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
|
||||||
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify it under
|
||||||
|
* the terms of the GNU Affero General Public License as published by the Free
|
||||||
|
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||||
|
* later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||||
|
* details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Affero General Public License
|
||||||
|
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||||
|
*
|
||||||
|
* This file incorporates work covered by the following copyright and permission
|
||||||
|
* notice:
|
||||||
|
* The Clear BSD License
|
||||||
|
*
|
||||||
|
* Copyright © 2017-2023 David Wildasin
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted (subject to the limitations in the disclaimer
|
||||||
|
* below) provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* * Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer.
|
||||||
|
*
|
||||||
|
* * Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions, and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* * Neither the name of the copyright holder nor the names of its
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
|
||||||
|
* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
use crate::{Opt, Parser};
|
||||||
|
|
||||||
|
macro_rules! basic_test {
|
||||||
|
($name:ident, $expect:expr, $next:expr, [$($arg:expr),+], $optstr:expr) => (
|
||||||
|
#[test]
|
||||||
|
fn $name() -> Result<(), String> {
|
||||||
|
let expect: Option<Opt> = $expect;
|
||||||
|
let args: Vec<String> = vec![$($arg),+]
|
||||||
|
.into_iter()
|
||||||
|
.map(String::from)
|
||||||
|
.collect();
|
||||||
|
let next: Option<String> = $next;
|
||||||
|
let mut opts = Parser::new(&args, $optstr);
|
||||||
|
|
||||||
|
match opts.next().transpose() {
|
||||||
|
Err(error) => {
|
||||||
|
return Err(format!("next() returned {:?}", error))
|
||||||
|
},
|
||||||
|
Ok(actual) => if actual != expect {
|
||||||
|
return Err(
|
||||||
|
format!("expected {:?}; got {:?}", expect, actual)
|
||||||
|
)
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
match next {
|
||||||
|
None => if opts.index() < args.len() {
|
||||||
|
return Err(format!(
|
||||||
|
"expected end of args; got {:?}", args[opts.index()]
|
||||||
|
))
|
||||||
|
},
|
||||||
|
Some(n) => if args[opts.index()] != n {
|
||||||
|
return Err(format!(
|
||||||
|
"next arg: expected {:?}; got {:?}",
|
||||||
|
n,
|
||||||
|
args[opts.index()]
|
||||||
|
))
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
#[rustfmt::skip] basic_test!(
|
||||||
|
blank_arg, None, Some(String::new()), ["x", ""], "a"
|
||||||
|
);
|
||||||
|
#[rustfmt::skip] basic_test!(
|
||||||
|
double_dash, None, Some("-a".to_string()), ["x", "--", "-a", "foo"], "a"
|
||||||
|
);
|
||||||
|
#[rustfmt::skip] basic_test!(no_opts_1, None, None, ["x"], "a");
|
||||||
|
#[rustfmt::skip] basic_test!(
|
||||||
|
no_opts_2, None, Some("foo".to_string()), ["x", "foo"], "a"
|
||||||
|
);
|
||||||
|
#[rustfmt::skip] basic_test!(
|
||||||
|
no_opts_3, None, Some("foo".to_string()), ["x", "foo", "-a"], "a"
|
||||||
|
);
|
||||||
|
#[rustfmt::skip] basic_test!(
|
||||||
|
single_dash, None, Some("-".to_string()), ["x", "-", "-a", "foo"], "a"
|
||||||
|
);
|
||||||
|
#[rustfmt::skip] basic_test!(
|
||||||
|
single_opt,
|
||||||
|
Some(Opt('a', None)),
|
||||||
|
Some("foo".to_string()),
|
||||||
|
["x", "-a", "foo"],
|
||||||
|
"a"
|
||||||
|
);
|
||||||
|
#[rustfmt::skip] basic_test!(
|
||||||
|
single_optarg,
|
||||||
|
Some(Opt('a', Some("foo".to_string()))),
|
||||||
|
None,
|
||||||
|
["x", "-a", "foo"],
|
||||||
|
"a:"
|
||||||
|
);
|
||||||
|
|
||||||
|
macro_rules! error_test {
|
||||||
|
($name:ident, $expect:expr, [$($arg:expr),+], $optstr:expr) => (
|
||||||
|
#[test]
|
||||||
|
fn $name() -> Result<(), String> {
|
||||||
|
let expect: String = $expect.to_string();
|
||||||
|
let args: Vec<String> = vec![$($arg),+]
|
||||||
|
.into_iter()
|
||||||
|
.map(String::from)
|
||||||
|
.collect();
|
||||||
|
let mut opts = Parser::new(&args, $optstr);
|
||||||
|
|
||||||
|
match opts.next() {
|
||||||
|
None => {
|
||||||
|
return Err(format!(
|
||||||
|
"unexpected successful response: end of options"
|
||||||
|
))
|
||||||
|
},
|
||||||
|
Some(Err(actual)) => {
|
||||||
|
let actual = actual.to_string();
|
||||||
|
|
||||||
|
if actual != expect {
|
||||||
|
return Err(
|
||||||
|
format!("expected {:?}; got {:?}", expect, actual)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
},
|
||||||
|
Some(Ok(opt)) => {
|
||||||
|
return Err(
|
||||||
|
format!("unexpected successful response: {:?}", opt)
|
||||||
|
)
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
#[rustfmt::skip] error_test!(
|
||||||
|
bad_opt,
|
||||||
|
"unknown option -- 'b'",
|
||||||
|
["x", "-b"],
|
||||||
|
"a"
|
||||||
|
);
|
||||||
|
|
||||||
|
#[rustfmt::skip] error_test!(
|
||||||
|
missing_optarg,
|
||||||
|
"option requires an argument -- 'a'",
|
||||||
|
["x", "-a"],
|
||||||
|
"a:"
|
||||||
|
);
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn multiple() -> Result<(), String> {
|
||||||
|
let args: Vec<String> = vec!["x", "-abc", "-d", "foo", "-e", "bar"]
|
||||||
|
.into_iter()
|
||||||
|
.map(String::from)
|
||||||
|
.collect();
|
||||||
|
let optstring = "ab:d:e".to_string();
|
||||||
|
let mut opts = Parser::new(&args, &optstring);
|
||||||
|
|
||||||
|
macro_rules! check_result {
|
||||||
|
($expect:expr) => {
|
||||||
|
let expect: Option<Opt> = $expect;
|
||||||
|
match opts.next().transpose() {
|
||||||
|
Err(error) => {
|
||||||
|
return Err(format!("next() returned {:?}", error));
|
||||||
|
},
|
||||||
|
Ok(actual) => {
|
||||||
|
if actual != expect {
|
||||||
|
return Err(
|
||||||
|
format!("expected {:?}; got {:?}", expect, actual)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
check_result!(Some(Opt('a', None)));
|
||||||
|
check_result!(Some(Opt('b', Some("c".to_string()))));
|
||||||
|
check_result!(Some(Opt('d', Some("foo".to_string()))));
|
||||||
|
check_result!(Some(Opt('e', None)));
|
||||||
|
check_result!(None);
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn continue_after_error() {
|
||||||
|
let args: Vec<String> = vec!["x", "-z", "-abc"]
|
||||||
|
.into_iter()
|
||||||
|
.map(String::from)
|
||||||
|
.collect();
|
||||||
|
let optstring = "ab:d:e".to_string();
|
||||||
|
for _opt in Parser::new(&args, &optstring) {
|
||||||
|
// do nothing, should not panic
|
||||||
|
}
|
||||||
|
}
|
|
@ -9,18 +9,19 @@
|
||||||
|
|
||||||
set -e
|
set -e
|
||||||
|
|
||||||
if ! ls GNUmakefile >/dev/null 2>&1
|
if ! ls Makefile >/dev/null 2>&1
|
||||||
then
|
then
|
||||||
printf '%s: Run this script in the root of the project.\n' "$0" 1>&2
|
printf '%s: Run this script in the root of the project.\n' "$0" 1>&2
|
||||||
exit 64 # sysexits.h(3) EX_USAGE
|
exit 64 # sysexits.h(3) EX_USAGE
|
||||||
fi
|
fi
|
||||||
|
|
||||||
make clean
|
make clean
|
||||||
|
./configure clean
|
||||||
|
./configure
|
||||||
|
|
||||||
for CC in cc \
|
for CC in cc \
|
||||||
clang \
|
clang \
|
||||||
gcc \
|
gcc \
|
||||||
tcc \
|
|
||||||
'zig cc'
|
'zig cc'
|
||||||
do
|
do
|
||||||
export CC
|
export CC
|
||||||
|
|
Loading…
Reference in New Issue
Block a user