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Diffstat (limited to '')
-rw-r--r-- | dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/stdlib_quote.go | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/stdlib_quote.go b/dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/stdlib_quote.go new file mode 100644 index 0000000..be50ae6 --- /dev/null +++ b/dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/stdlib_quote.go @@ -0,0 +1,103 @@ +// Copied and trimmed down from https://github.com/golang/go/blob/e3769299cd3484e018e0e2a6e1b95c2b18ce4f41/src/strconv/quote.go +// We want to use the standard library's private "quoteWith" function rather than write our own so that we get robust unicode support. +// Every private function called by quoteWith was copied. +// There are 2 modifications to simplify the code: +// 1. The unicode.IsPrint function was substituted for the custom implementation of IsPrint +// 2. All code paths reachable only when ASCIIonly or grphicOnly are set to true were removed. + +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package yaml + +import ( + "unicode" + "unicode/utf8" +) + +const ( + lowerhex = "0123456789abcdef" +) + +func quoteWith(s string, quote byte) string { + return string(appendQuotedWith(make([]byte, 0, 3*len(s)/2), s, quote)) +} + +func appendQuotedWith(buf []byte, s string, quote byte) []byte { + // Often called with big strings, so preallocate. If there's quoting, + // this is conservative but still helps a lot. + if cap(buf)-len(buf) < len(s) { + nBuf := make([]byte, len(buf), len(buf)+1+len(s)+1) + copy(nBuf, buf) + buf = nBuf + } + buf = append(buf, quote) + for width := 0; len(s) > 0; s = s[width:] { + r := rune(s[0]) + width = 1 + if r >= utf8.RuneSelf { + r, width = utf8.DecodeRuneInString(s) + } + if width == 1 && r == utf8.RuneError { + buf = append(buf, `\x`...) + buf = append(buf, lowerhex[s[0]>>4]) + buf = append(buf, lowerhex[s[0]&0xF]) + continue + } + buf = appendEscapedRune(buf, r, quote) + } + buf = append(buf, quote) + return buf +} + +func appendEscapedRune(buf []byte, r rune, quote byte) []byte { + var runeTmp [utf8.UTFMax]byte + if r == rune(quote) || r == '\\' { // always backslashed + buf = append(buf, '\\') + buf = append(buf, byte(r)) + return buf + } + if unicode.IsPrint(r) { + n := utf8.EncodeRune(runeTmp[:], r) + buf = append(buf, runeTmp[:n]...) + return buf + } + switch r { + case '\a': + buf = append(buf, `\a`...) + case '\b': + buf = append(buf, `\b`...) + case '\f': + buf = append(buf, `\f`...) + case '\n': + buf = append(buf, `\n`...) + case '\r': + buf = append(buf, `\r`...) + case '\t': + buf = append(buf, `\t`...) + case '\v': + buf = append(buf, `\v`...) + default: + switch { + case r < ' ': + buf = append(buf, `\x`...) + buf = append(buf, lowerhex[byte(r)>>4]) + buf = append(buf, lowerhex[byte(r)&0xF]) + case r > utf8.MaxRune: + r = 0xFFFD + fallthrough + case r < 0x10000: + buf = append(buf, `\u`...) + for s := 12; s >= 0; s -= 4 { + buf = append(buf, lowerhex[r>>uint(s)&0xF]) + } + default: + buf = append(buf, `\U`...) + for s := 28; s >= 0; s -= 4 { + buf = append(buf, lowerhex[r>>uint(s)&0xF]) + } + } + } + return buf +} |