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-rw-r--r--vendor/github.com/json-iterator/go/stream_str.go372
1 files changed, 372 insertions, 0 deletions
diff --git a/vendor/github.com/json-iterator/go/stream_str.go b/vendor/github.com/json-iterator/go/stream_str.go
new file mode 100644
index 000000000..54c2ba0b3
--- /dev/null
+++ b/vendor/github.com/json-iterator/go/stream_str.go
@@ -0,0 +1,372 @@
+package jsoniter
+
+import (
+ "unicode/utf8"
+)
+
+// htmlSafeSet holds the value true if the ASCII character with the given
+// array position can be safely represented inside a JSON string, embedded
+// inside of HTML <script> tags, without any additional escaping.
+//
+// All values are true except for the ASCII control characters (0-31), the
+// double quote ("), the backslash character ("\"), HTML opening and closing
+// tags ("<" and ">"), and the ampersand ("&").
+var htmlSafeSet = [utf8.RuneSelf]bool{
+ ' ': true,
+ '!': true,
+ '"': false,
+ '#': true,
+ '$': true,
+ '%': true,
+ '&': false,
+ '\'': true,
+ '(': true,
+ ')': true,
+ '*': true,
+ '+': true,
+ ',': true,
+ '-': true,
+ '.': true,
+ '/': true,
+ '0': true,
+ '1': true,
+ '2': true,
+ '3': true,
+ '4': true,
+ '5': true,
+ '6': true,
+ '7': true,
+ '8': true,
+ '9': true,
+ ':': true,
+ ';': true,
+ '<': false,
+ '=': true,
+ '>': false,
+ '?': true,
+ '@': true,
+ 'A': true,
+ 'B': true,
+ 'C': true,
+ 'D': true,
+ 'E': true,
+ 'F': true,
+ 'G': true,
+ 'H': true,
+ 'I': true,
+ 'J': true,
+ 'K': true,
+ 'L': true,
+ 'M': true,
+ 'N': true,
+ 'O': true,
+ 'P': true,
+ 'Q': true,
+ 'R': true,
+ 'S': true,
+ 'T': true,
+ 'U': true,
+ 'V': true,
+ 'W': true,
+ 'X': true,
+ 'Y': true,
+ 'Z': true,
+ '[': true,
+ '\\': false,
+ ']': true,
+ '^': true,
+ '_': true,
+ '`': true,
+ 'a': true,
+ 'b': true,
+ 'c': true,
+ 'd': true,
+ 'e': true,
+ 'f': true,
+ 'g': true,
+ 'h': true,
+ 'i': true,
+ 'j': true,
+ 'k': true,
+ 'l': true,
+ 'm': true,
+ 'n': true,
+ 'o': true,
+ 'p': true,
+ 'q': true,
+ 'r': true,
+ 's': true,
+ 't': true,
+ 'u': true,
+ 'v': true,
+ 'w': true,
+ 'x': true,
+ 'y': true,
+ 'z': true,
+ '{': true,
+ '|': true,
+ '}': true,
+ '~': true,
+ '\u007f': true,
+}
+
+// safeSet holds the value true if the ASCII character with the given array
+// position can be represented inside a JSON string without any further
+// escaping.
+//
+// All values are true except for the ASCII control characters (0-31), the
+// double quote ("), and the backslash character ("\").
+var safeSet = [utf8.RuneSelf]bool{
+ ' ': true,
+ '!': true,
+ '"': false,
+ '#': true,
+ '$': true,
+ '%': true,
+ '&': true,
+ '\'': true,
+ '(': true,
+ ')': true,
+ '*': true,
+ '+': true,
+ ',': true,
+ '-': true,
+ '.': true,
+ '/': true,
+ '0': true,
+ '1': true,
+ '2': true,
+ '3': true,
+ '4': true,
+ '5': true,
+ '6': true,
+ '7': true,
+ '8': true,
+ '9': true,
+ ':': true,
+ ';': true,
+ '<': true,
+ '=': true,
+ '>': true,
+ '?': true,
+ '@': true,
+ 'A': true,
+ 'B': true,
+ 'C': true,
+ 'D': true,
+ 'E': true,
+ 'F': true,
+ 'G': true,
+ 'H': true,
+ 'I': true,
+ 'J': true,
+ 'K': true,
+ 'L': true,
+ 'M': true,
+ 'N': true,
+ 'O': true,
+ 'P': true,
+ 'Q': true,
+ 'R': true,
+ 'S': true,
+ 'T': true,
+ 'U': true,
+ 'V': true,
+ 'W': true,
+ 'X': true,
+ 'Y': true,
+ 'Z': true,
+ '[': true,
+ '\\': false,
+ ']': true,
+ '^': true,
+ '_': true,
+ '`': true,
+ 'a': true,
+ 'b': true,
+ 'c': true,
+ 'd': true,
+ 'e': true,
+ 'f': true,
+ 'g': true,
+ 'h': true,
+ 'i': true,
+ 'j': true,
+ 'k': true,
+ 'l': true,
+ 'm': true,
+ 'n': true,
+ 'o': true,
+ 'p': true,
+ 'q': true,
+ 'r': true,
+ 's': true,
+ 't': true,
+ 'u': true,
+ 'v': true,
+ 'w': true,
+ 'x': true,
+ 'y': true,
+ 'z': true,
+ '{': true,
+ '|': true,
+ '}': true,
+ '~': true,
+ '\u007f': true,
+}
+
+var hex = "0123456789abcdef"
+
+// WriteStringWithHTMLEscaped write string to stream with html special characters escaped
+func (stream *Stream) WriteStringWithHTMLEscaped(s string) {
+ valLen := len(s)
+ stream.buf = append(stream.buf, '"')
+ // write string, the fast path, without utf8 and escape support
+ i := 0
+ for ; i < valLen; i++ {
+ c := s[i]
+ if c < utf8.RuneSelf && htmlSafeSet[c] {
+ stream.buf = append(stream.buf, c)
+ } else {
+ break
+ }
+ }
+ if i == valLen {
+ stream.buf = append(stream.buf, '"')
+ return
+ }
+ writeStringSlowPathWithHTMLEscaped(stream, i, s, valLen)
+}
+
+func writeStringSlowPathWithHTMLEscaped(stream *Stream, i int, s string, valLen int) {
+ start := i
+ // for the remaining parts, we process them char by char
+ for i < valLen {
+ if b := s[i]; b < utf8.RuneSelf {
+ if htmlSafeSet[b] {
+ i++
+ continue
+ }
+ if start < i {
+ stream.WriteRaw(s[start:i])
+ }
+ switch b {
+ case '\\', '"':
+ stream.writeTwoBytes('\\', b)
+ case '\n':
+ stream.writeTwoBytes('\\', 'n')
+ case '\r':
+ stream.writeTwoBytes('\\', 'r')
+ case '\t':
+ stream.writeTwoBytes('\\', 't')
+ default:
+ // This encodes bytes < 0x20 except for \t, \n and \r.
+ // If escapeHTML is set, it also escapes <, >, and &
+ // because they can lead to security holes when
+ // user-controlled strings are rendered into JSON
+ // and served to some browsers.
+ stream.WriteRaw(`\u00`)
+ stream.writeTwoBytes(hex[b>>4], hex[b&0xF])
+ }
+ i++
+ start = i
+ continue
+ }
+ c, size := utf8.DecodeRuneInString(s[i:])
+ if c == utf8.RuneError && size == 1 {
+ if start < i {
+ stream.WriteRaw(s[start:i])
+ }
+ stream.WriteRaw(`\ufffd`)
+ i++
+ start = i
+ continue
+ }
+ // U+2028 is LINE SEPARATOR.
+ // U+2029 is PARAGRAPH SEPARATOR.
+ // They are both technically valid characters in JSON strings,
+ // but don't work in JSONP, which has to be evaluated as JavaScript,
+ // and can lead to security holes there. It is valid JSON to
+ // escape them, so we do so unconditionally.
+ // See http://timelessrepo.com/json-isnt-a-javascript-subset for discussion.
+ if c == '\u2028' || c == '\u2029' {
+ if start < i {
+ stream.WriteRaw(s[start:i])
+ }
+ stream.WriteRaw(`\u202`)
+ stream.writeByte(hex[c&0xF])
+ i += size
+ start = i
+ continue
+ }
+ i += size
+ }
+ if start < len(s) {
+ stream.WriteRaw(s[start:])
+ }
+ stream.writeByte('"')
+}
+
+// WriteString write string to stream without html escape
+func (stream *Stream) WriteString(s string) {
+ valLen := len(s)
+ stream.buf = append(stream.buf, '"')
+ // write string, the fast path, without utf8 and escape support
+ i := 0
+ for ; i < valLen; i++ {
+ c := s[i]
+ if c > 31 && c != '"' && c != '\\' {
+ stream.buf = append(stream.buf, c)
+ } else {
+ break
+ }
+ }
+ if i == valLen {
+ stream.buf = append(stream.buf, '"')
+ return
+ }
+ writeStringSlowPath(stream, i, s, valLen)
+}
+
+func writeStringSlowPath(stream *Stream, i int, s string, valLen int) {
+ start := i
+ // for the remaining parts, we process them char by char
+ for i < valLen {
+ if b := s[i]; b < utf8.RuneSelf {
+ if safeSet[b] {
+ i++
+ continue
+ }
+ if start < i {
+ stream.WriteRaw(s[start:i])
+ }
+ switch b {
+ case '\\', '"':
+ stream.writeTwoBytes('\\', b)
+ case '\n':
+ stream.writeTwoBytes('\\', 'n')
+ case '\r':
+ stream.writeTwoBytes('\\', 'r')
+ case '\t':
+ stream.writeTwoBytes('\\', 't')
+ default:
+ // This encodes bytes < 0x20 except for \t, \n and \r.
+ // If escapeHTML is set, it also escapes <, >, and &
+ // because they can lead to security holes when
+ // user-controlled strings are rendered into JSON
+ // and served to some browsers.
+ stream.WriteRaw(`\u00`)
+ stream.writeTwoBytes(hex[b>>4], hex[b&0xF])
+ }
+ i++
+ start = i
+ continue
+ }
+ i++
+ continue
+ }
+ if start < len(s) {
+ stream.WriteRaw(s[start:])
+ }
+ stream.writeByte('"')
+}