289b30715d
This commit converts the dependency management from Godeps to the vendor folder, also switching the tool from godep to trash. Since the upstream tool lacks a few features proposed via a few PRs, until those PRs are merged in (if), use github.com/karalabe/trash. You can update dependencies via trash --update. All dependencies have been updated to their latest version. Parts of the build system are reworked to drop old notions of Godeps and invocation of the go vet command so that it doesn't run against the vendor folder, as that will just blow up during vetting. The conversion drops OpenCL (and hence GPU mining support) from ethash and our codebase. The short reasoning is that there's noone to maintain and having opencl libs in our deps messes up builds as go install ./... tries to build them, failing with unsatisfied link errors for the C OpenCL deps. golang.org/x/net/context is not vendored in. We expect it to be fetched by the user (i.e. using go get). To keep ci.go builds reproducible the package is "vendored" in build/_vendor.
74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package wordwrap
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import (
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"bytes"
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"unicode"
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)
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// WrapString wraps the given string within lim width in characters.
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//
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// Wrapping is currently naive and only happens at white-space. A future
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// version of the library will implement smarter wrapping. This means that
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// pathological cases can dramatically reach past the limit, such as a very
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// long word.
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func WrapString(s string, lim uint) string {
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// Initialize a buffer with a slightly larger size to account for breaks
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init := make([]byte, 0, len(s))
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buf := bytes.NewBuffer(init)
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var current uint
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var wordBuf, spaceBuf bytes.Buffer
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for _, char := range s {
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if char == '\n' {
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if wordBuf.Len() == 0 {
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if current+uint(spaceBuf.Len()) > lim {
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current = 0
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} else {
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current += uint(spaceBuf.Len())
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spaceBuf.WriteTo(buf)
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}
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spaceBuf.Reset()
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} else {
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current += uint(spaceBuf.Len() + wordBuf.Len())
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spaceBuf.WriteTo(buf)
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spaceBuf.Reset()
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wordBuf.WriteTo(buf)
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wordBuf.Reset()
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}
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buf.WriteRune(char)
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current = 0
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} else if unicode.IsSpace(char) {
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if spaceBuf.Len() == 0 || wordBuf.Len() > 0 {
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current += uint(spaceBuf.Len() + wordBuf.Len())
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spaceBuf.WriteTo(buf)
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spaceBuf.Reset()
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wordBuf.WriteTo(buf)
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wordBuf.Reset()
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}
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spaceBuf.WriteRune(char)
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} else {
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wordBuf.WriteRune(char)
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if current+uint(spaceBuf.Len()+wordBuf.Len()) > lim && uint(wordBuf.Len()) < lim {
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buf.WriteRune('\n')
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current = 0
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spaceBuf.Reset()
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}
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}
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}
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if wordBuf.Len() == 0 {
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if current+uint(spaceBuf.Len()) <= lim {
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spaceBuf.WriteTo(buf)
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}
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} else {
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spaceBuf.WriteTo(buf)
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wordBuf.WriteTo(buf)
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}
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return buf.String()
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}
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