Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 228 insertions, 0 deletions

diff --git a/third_party/libwebrtc/webrtc/rtc_base/stringencode.h b/third_party/libwebrtc/webrtc/rtc_base/stringencode.h
new file mode 100644
index 0000000000..d99dd0d4a2
--- /dev/null
+++ b/third_party/libwebrtc/webrtc/rtc_base/stringencode.h
@@ -0,0 +1,228 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_BASE_STRINGENCODE_H_
+#define RTC_BASE_STRINGENCODE_H_
+
+#include <sstream>
+#include <string>
+#include <vector>
+
+#include "rtc_base/checks.h"
+
+namespace rtc {
+
+//////////////////////////////////////////////////////////////////////
+// String Encoding Utilities
+//////////////////////////////////////////////////////////////////////
+
+// Convert an unsigned value to it's utf8 representation.  Returns the length
+// of the encoded string, or 0 if the encoding is longer than buflen - 1.
+size_t utf8_encode(char* buffer, size_t buflen, unsigned long value);
+// Decode the utf8 encoded value pointed to by source.  Returns the number of
+// bytes used by the encoding, or 0 if the encoding is invalid.
+size_t utf8_decode(const char* source, size_t srclen, unsigned long* value);
+
+// Escaping prefixes illegal characters with the escape character.  Compact, but
+// illegal characters still appear in the string.
+size_t escape(char * buffer, size_t buflen,
+              const char * source, size_t srclen,
+              const char * illegal, char escape);
+// Note: in-place unescaping (buffer == source) is allowed.
+size_t unescape(char * buffer, size_t buflen,
+                const char * source, size_t srclen,
+                char escape);
+
+// Encoding replaces illegal characters with the escape character and 2 hex
+// chars, so it's a little less compact than escape, but completely removes
+// illegal characters.  note that hex digits should not be used as illegal
+// characters.
+size_t encode(char * buffer, size_t buflen,
+              const char * source, size_t srclen,
+              const char * illegal, char escape);
+// Note: in-place decoding (buffer == source) is allowed.
+size_t decode(char * buffer, size_t buflen,
+              const char * source, size_t srclen,
+              char escape);
+
+// Returns a list of characters that may be unsafe for use in the name of a
+// file, suitable for passing to the 'illegal' member of escape or encode.
+const char* unsafe_filename_characters();
+
+// url_encode is an encode operation with a predefined set of illegal characters
+// and escape character (for use in URLs, obviously).
+size_t url_encode(char * buffer, size_t buflen,
+                  const char * source, size_t srclen);
+// Note: in-place decoding (buffer == source) is allowed.
+size_t url_decode(char * buffer, size_t buflen,
+                  const char * source, size_t srclen);
+
+// html_encode prevents data embedded in html from containing markup.
+size_t html_encode(char * buffer, size_t buflen,
+                   const char * source, size_t srclen);
+// Note: in-place decoding (buffer == source) is allowed.
+size_t html_decode(char * buffer, size_t buflen,
+                   const char * source, size_t srclen);
+
+// xml_encode makes data suitable for inside xml attributes and values.
+size_t xml_encode(char * buffer, size_t buflen,
+                  const char * source, size_t srclen);
+// Note: in-place decoding (buffer == source) is allowed.
+size_t xml_decode(char * buffer, size_t buflen,
+                  const char * source, size_t srclen);
+
+// Convert an unsigned value from 0 to 15 to the hex character equivalent...
+char hex_encode(unsigned char val);
+// ...and vice-versa.
+bool hex_decode(char ch, unsigned char* val);
+
+// hex_encode shows the hex representation of binary data in ascii.
+size_t hex_encode(char* buffer, size_t buflen,
+                  const char* source, size_t srclen);
+
+// hex_encode, but separate each byte representation with a delimiter.
+// |delimiter| == 0 means no delimiter
+// If the buffer is too short, we return 0
+size_t hex_encode_with_delimiter(char* buffer, size_t buflen,
+                                 const char* source, size_t srclen,
+                                 char delimiter);
+
+// Helper functions for hex_encode.
+std::string hex_encode(const std::string& str);
+std::string hex_encode(const char* source, size_t srclen);
+std::string hex_encode_with_delimiter(const char* source, size_t srclen,
+                                      char delimiter);
+
+// hex_decode converts ascii hex to binary.
+size_t hex_decode(char* buffer, size_t buflen,
+                  const char* source, size_t srclen);
+
+// hex_decode, assuming that there is a delimiter between every byte
+// pair.
+// |delimiter| == 0 means no delimiter
+// If the buffer is too short or the data is invalid, we return 0.
+size_t hex_decode_with_delimiter(char* buffer, size_t buflen,
+                                 const char* source, size_t srclen,
+                                 char delimiter);
+
+// Helper functions for hex_decode.
+size_t hex_decode(char* buffer, size_t buflen, const std::string& source);
+size_t hex_decode_with_delimiter(char* buffer, size_t buflen,
+                                 const std::string& source, char delimiter);
+
+// Apply any suitable string transform (including the ones above) to an STL
+// string.  Stack-allocated temporary space is used for the transformation,
+// so value and source may refer to the same string.
+typedef size_t (*Transform)(char * buffer, size_t buflen,
+                            const char * source, size_t srclen);
+size_t transform(std::string& value, size_t maxlen, const std::string& source,
+                 Transform t);
+
+// Return the result of applying transform t to source.
+std::string s_transform(const std::string& source, Transform t);
+
+// Convenience wrappers.
+inline std::string s_url_encode(const std::string& source) {
+  return s_transform(source, url_encode);
+}
+inline std::string s_url_decode(const std::string& source) {
+  return s_transform(source, url_decode);
+}
+
+// Joins the source vector of strings into a single string, with each
+// field in source being separated by delimiter. No trailing delimiter is added.
+std::string join(const std::vector<std::string>& source, char delimiter);
+
+// Splits the source string into multiple fields separated by delimiter,
+// with duplicates of delimiter creating empty fields.
+size_t split(const std::string& source, char delimiter,
+             std::vector<std::string>* fields);
+
+// Splits the source string into multiple fields separated by delimiter,
+// with duplicates of delimiter ignored.  Trailing delimiter ignored.
+size_t tokenize(const std::string& source, char delimiter,
+                std::vector<std::string>* fields);
+
+// Tokenize, including the empty tokens.
+size_t tokenize_with_empty_tokens(const std::string& source,
+                                  char delimiter,
+                                  std::vector<std::string>* fields);
+
+// Tokenize and append the tokens to fields. Return the new size of fields.
+size_t tokenize_append(const std::string& source, char delimiter,
+                       std::vector<std::string>* fields);
+
+// Splits the source string into multiple fields separated by delimiter, with
+// duplicates of delimiter ignored. Trailing delimiter ignored. A substring in
+// between the start_mark and the end_mark is treated as a single field. Return
+// the size of fields. For example, if source is "filename
+// \"/Library/Application Support/media content.txt\"", delimiter is ' ', and
+// the start_mark and end_mark are '"', this method returns two fields:
+// "filename" and "/Library/Application Support/media content.txt".
+size_t tokenize(const std::string& source, char delimiter, char start_mark,
+                char end_mark, std::vector<std::string>* fields);
+
+// Extract the first token from source as separated by delimiter, with
+// duplicates of delimiter ignored. Return false if the delimiter could not be
+// found, otherwise return true.
+bool tokenize_first(const std::string& source,
+                    const char delimiter,
+                    std::string* token,
+                    std::string* rest);
+
+// Safe sprintf to std::string
+//void sprintf(std::string& value, size_t maxlen, const char * format, ...)
+//     PRINTF_FORMAT(3);
+
+// Convert arbitrary values to/from a string.
+
+template <class T>
+static bool ToString(const T &t, std::string* s) {
+  RTC_DCHECK(s);
+  std::ostringstream oss;
+  oss << std::boolalpha << t;
+  *s = oss.str();
+  return !oss.fail();
+}
+
+template <class T>
+static bool FromString(const std::string& s, T* t) {
+  RTC_DCHECK(t);
+  std::istringstream iss(s);
+  iss >> std::boolalpha >> *t;
+  return !iss.fail();
+}
+
+// Inline versions of the string conversion routines.
+
+template<typename T>
+static inline std::string ToString(const T& val) {
+  std::string str; ToString(val, &str); return str;
+}
+
+template<typename T>
+static inline T FromString(const std::string& str) {
+  T val; FromString(str, &val); return val;
+}
+
+template<typename T>
+static inline T FromString(const T& defaultValue, const std::string& str) {
+  T val(defaultValue); FromString(str, &val); return val;
+}
+
+// simple function to strip out characters which shouldn't be
+// used in filenames
+char make_char_safe_for_filename(char c);
+
+//////////////////////////////////////////////////////////////////////
+
+}  // namespace rtc
+
+#endif  // RTC_BASE_STRINGENCODE_H__