fix(go.sum): update ResolveSpec dependency to v1.0.87

vendor/github.com/yosida95/uritemplate/v3/escape.go

@@ -0,0 +1,190 @@
+// Copyright (C) 2016 Kohei YOSHIDA. All rights reserved.
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of The BSD 3-Clause License
+// that can be found in the LICENSE file.
+
+package uritemplate
+
+import (
+	"strings"
+	"unicode"
+	"unicode/utf8"
+)
+
+var (
+	hex = []byte("0123456789ABCDEF")
+	// reserved   = gen-delims / sub-delims
+	// gen-delims =  ":" / "/" / "?" / "#" / "[" / "]" / "@"
+	// sub-delims =  "!" / "$" / "&" / "’" / "(" / ")"
+	//            /  "*" / "+" / "," / ";" / "="
+	rangeReserved = &unicode.RangeTable{
+		R16: []unicode.Range16{
+			{Lo: 0x21, Hi: 0x21, Stride: 1}, // '!'
+			{Lo: 0x23, Hi: 0x24, Stride: 1}, // '#' - '$'
+			{Lo: 0x26, Hi: 0x2C, Stride: 1}, // '&' - ','
+			{Lo: 0x2F, Hi: 0x2F, Stride: 1}, // '/'
+			{Lo: 0x3A, Hi: 0x3B, Stride: 1}, // ':' - ';'
+			{Lo: 0x3D, Hi: 0x3D, Stride: 1}, // '='
+			{Lo: 0x3F, Hi: 0x40, Stride: 1}, // '?' - '@'
+			{Lo: 0x5B, Hi: 0x5B, Stride: 1}, // '['
+			{Lo: 0x5D, Hi: 0x5D, Stride: 1}, // ']'
+		},
+		LatinOffset: 9,
+	}
+	reReserved = `\x21\x23\x24\x26-\x2c\x2f\x3a\x3b\x3d\x3f\x40\x5b\x5d`
+	// ALPHA      = %x41-5A / %x61-7A
+	// DIGIT      = %x30-39
+	// unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
+	rangeUnreserved = &unicode.RangeTable{
+		R16: []unicode.Range16{
+			{Lo: 0x2D, Hi: 0x2E, Stride: 1}, // '-' - '.'
+			{Lo: 0x30, Hi: 0x39, Stride: 1}, // '0' - '9'
+			{Lo: 0x41, Hi: 0x5A, Stride: 1}, // 'A' - 'Z'
+			{Lo: 0x5F, Hi: 0x5F, Stride: 1}, // '_'
+			{Lo: 0x61, Hi: 0x7A, Stride: 1}, // 'a' - 'z'
+			{Lo: 0x7E, Hi: 0x7E, Stride: 1}, // '~'
+		},
+	}
+	reUnreserved = `\x2d\x2e\x30-\x39\x41-\x5a\x5f\x61-\x7a\x7e`
+)
+
+type runeClass uint8
+
+const (
+	runeClassU runeClass = 1 << iota
+	runeClassR
+	runeClassPctE
+	runeClassLast
+
+	runeClassUR = runeClassU | runeClassR
+)
+
+var runeClassNames = []string{
+	"U",
+	"R",
+	"pct-encoded",
+}
+
+func (rc runeClass) String() string {
+	ret := make([]string, 0, len(runeClassNames))
+	for i, j := 0, runeClass(1); j < runeClassLast; j <<= 1 {
+		if rc&j == j {
+			ret = append(ret, runeClassNames[i])
+		}
+		i++
+	}
+	return strings.Join(ret, "+")
+}
+
+func pctEncode(w *strings.Builder, r rune) {
+	if s := r >> 24 & 0xff; s > 0 {
+		w.Write([]byte{'%', hex[s/16], hex[s%16]})
+	}
+	if s := r >> 16 & 0xff; s > 0 {
+		w.Write([]byte{'%', hex[s/16], hex[s%16]})
+	}
+	if s := r >> 8 & 0xff; s > 0 {
+		w.Write([]byte{'%', hex[s/16], hex[s%16]})
+	}
+	if s := r & 0xff; s > 0 {
+		w.Write([]byte{'%', hex[s/16], hex[s%16]})
+	}
+}
+
+func unhex(c byte) byte {
+	switch {
+	case '0' <= c && c <= '9':
+		return c - '0'
+	case 'a' <= c && c <= 'f':
+		return c - 'a' + 10
+	case 'A' <= c && c <= 'F':
+		return c - 'A' + 10
+	}
+	return 0
+}
+
+func ishex(c byte) bool {
+	switch {
+	case '0' <= c && c <= '9':
+		return true
+	case 'a' <= c && c <= 'f':
+		return true
+	case 'A' <= c && c <= 'F':
+		return true
+	default:
+		return false
+	}
+}
+
+func pctDecode(s string) string {
+	size := len(s)
+	for i := 0; i < len(s); {
+		switch s[i] {
+		case '%':
+			size -= 2
+			i += 3
+		default:
+			i++
+		}
+	}
+	if size == len(s) {
+		return s
+	}
+
+	buf := make([]byte, size)
+	j := 0
+	for i := 0; i < len(s); {
+		switch c := s[i]; c {
+		case '%':
+			buf[j] = unhex(s[i+1])<<4 | unhex(s[i+2])
+			i += 3
+			j++
+		default:
+			buf[j] = c
+			i++
+			j++
+		}
+	}
+	return string(buf)
+}
+
+type escapeFunc func(*strings.Builder, string) error
+
+func escapeLiteral(w *strings.Builder, v string) error {
+	w.WriteString(v)
+	return nil
+}
+
+func escapeExceptU(w *strings.Builder, v string) error {
+	for i := 0; i < len(v); {
+		r, size := utf8.DecodeRuneInString(v[i:])
+		if r == utf8.RuneError {
+			return errorf(i, "invalid encoding")
+		}
+		if unicode.Is(rangeUnreserved, r) {
+			w.WriteRune(r)
+		} else {
+			pctEncode(w, r)
+		}
+		i += size
+	}
+	return nil
+}
+
+func escapeExceptUR(w *strings.Builder, v string) error {
+	for i := 0; i < len(v); {
+		r, size := utf8.DecodeRuneInString(v[i:])
+		if r == utf8.RuneError {
+			return errorf(i, "invalid encoding")
+		}
+		// TODO(yosida95): is pct-encoded triplets allowed here?
+		if unicode.In(r, rangeUnreserved, rangeReserved) {
+			w.WriteRune(r)
+		} else {
+			pctEncode(w, r)
+		}
+		i += size
+	}
+	return nil
+}