First commit

.gitignore

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+.idea
+*.swp
+build/

LICENSE

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+MIT License
+
+Copyright (c) 2018 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

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+.DEFAULT_GOAL := help
+
+GOCMD := env GO111MODULE=on go
+GOMOD := $(GOCMD) mod
+GOBUILD := $(GOCMD) build
+GOINSTALL := $(GOCMD) install
+GOCLEAN := $(GOCMD) clean
+GOTEST := $(GOCMD) test
+GOGET := $(GOCMD) get
+NAME := dango
+CURRENT := $(shell pwd)
+BUILDDIR := ./build
+BINDIR := $(BUILDDIR)/bin
+PKGDIR := $(BUILDDIR)/pkg
+DISTDIR := $(BUILDDIR)/dist
+
+VERSION := $(shell git describe --tags --abbrev=0)
+LDFLAGS := -X 'main.version=$(VERSION)'
+GOXOSARCH := "darwin/amd64 darwin/arm64 windows/386 windows/amd64 linux/386 linux/amd64"
+GOXOUTPUT := "$(PKGDIR)/$(NAME)_{{.OS}}_{{.Arch}}/{{.Dir}}"
+
+export GO111MODULE=on
+
+.PHONY: deps
+## Install dependencies
+deps:
+	$(GOMOD) download
+
+.PHONY: devel-deps
+## Install dependencies for develop
+devel-deps: deps
+	sh -c '\
+	tmpdir=$$(mktemp -d); \
+	cd $$tmpdir; \
+	$(GOGET) \
+		golang.org/x/tools/cmd/goimports \
+		golang.org/x/lint/golint \
+		github.com/Songmu/make2help/cmd/make2help \
+		github.com/mitchellh/gox \
+		github.com/tcnksm/ghr; \
+	rm -rf $$tmpdir'
+
+.PHONY: build
+## Build binaries
+build: deps
+	$(GOBUILD) -ldflags "$(LDFLAGS)" -o $(BINDIR)/$(NAME) .
+
+.PHONY: cross-build
+## Cross build binaries
+cross-build:
+	rm -rf $(PKGDIR)
+	gox -osarch=$(GOXOSARCH) -ldflags "$(LDFLAGS)" -output=$(GOXOUTPUT) .
+
+.PHONY: package
+## Make package
+package: cross-build
+	rm -rf $(DISTDIR)
+	mkdir $(DISTDIR)
+	pushd $(PKGDIR) > /dev/null && \
+		for P in `ls | xargs basename`; do zip -r $(CURRENT)/$(DISTDIR)/$$P.zip $$P; done && \
+		popd > /dev/null
+
+.PHONY: release
+## Release package to Github
+release: package
+	ghr $(VERSION) $(DISTDIR)
+
+.PHONY: test
+## Run tests
+test: deps
+	$(GOTEST) -v ./...
+
+.PHONY: lint
+## Lint
+lint: devel-deps
+	go vet ./...
+	golint -set_exit_status ./...
+
+.PHONY: fmt
+## Format source codes
+fmt: deps
+	find . -name "*.go" -not -path "./vendor/*" | xargs goimports -w
+
+.PHONY: clean
+clean:
+	$(GOCLEAN)
+	rm -rf $(BUILDDIR)
+
+.PHONY: help
+## Show help
+help:
+	@make2help $(MAKEFILE_LIST)

README.md

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+[English](README.md) | [日本語](README_ja.md)
+
+# 🍡 dango
+
+🍡`dango` is a program that concatenates and splits standard input.
+
+## Description
+
+`dango` concatenates and splits the standard input.
+
+`dango` concatenates and splits standard input by bytes, characters, words, or line breaks.
+`dango` reads the standard input and whenever it reads a specified number of elements, it puts them on a line and prints them to the standard output.
+
+## Usage
+
+```
+$ cat << EOF | dango
+━
+🟠
+🟡
+🟢
+━
+EOF
+━🟠🟡🟢━
+```
+
+Concatenate or split by number of bytes.
+
+```
+$ echo 'Hello World!' | dango -b -n 1
+H
+e
+l
+l
+o
+
+W
+o
+r
+l
+d
+!
+
+$ echo 'Hello World!' | dango -b -n 5
+Hello
+ Worl
+d!
+```
+
+Concatenate or split by number of characters.
+
+```
+$ echo '花より団子' | dango -c -n 1
+花
+よ
+り
+団
+子
+
+$ echo '花より団子' | dango -c -n 3
+花より
+団子
+```
+
+Concatenate or split by word count.
+
+```
+$ echo 'Hello World!' | dango -w -n 1
+Hello
+World!
+
+$ echo 'Hello World!' | dango -w
+HelloWorld!
+```
+
+Concatenate or split by the number of line breaks.
+
+```
+$ cat << EOF | dango -l -n 1
+Hello
+World!
+EOF
+Hello
+World!
+
+$ cat << EOF | dango -l
+Hello
+
+World
+
+!
+EOF
+HelloWorld!
+```
+
+Specify a delimiter to concatenate or split.
+
+```
+$ echo 'abcdefg' | dango -c -d ' '
+a b c d e f g 
+
+$ cat << EOF | dango -d ' '
+Hello
+World!
+EOF
+Hello World!
+```
+
+Show help.
+
+```
+$ dango -help
+# ...
+```
+
+## Installation
+
+### Developer
+
+Go 1.16 or later.
+
+```
+$ go install github.com/ebc-2in2crc/dango@latest
+```
+
+Go 1.15.
+
+```
+$ go get github.com/ebc-2in2crc/dango/...
+```
+
+### User
+
+Download from the following url.
+
+- [https://github.com/ebc-2in2crc/dango/releases](https://github.com/ebc-2in2crc/dango/releases)
+
+## Contribution
+
+1. Fork this repository
+2. Create your feature branch (git checkout -b my-new-feature)
+3. Commit your changes (git commit -am 'Add some feature')
+4. Rebase your local changes against the master branch
+5. Run test suite with the `make test` command and confirm that it passes
+6. Run `make fmt`
+7. Create new Pull Request
+
+## License
+
+[MIT](https://github.com/ebc-2in2crc/wareki/blob/master/LICENSE)
+
+## Author
+
+[ebc-2in2crc](https://github.com/ebc-2in2crc)