mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
ebd358dfd7
This patch was automatically generated by the following script:
#!/bin/bash
# Command to convert PRUnichar to char16_t
function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
! -wholename "*security/nss*" \
! -wholename "*modules/libmar*" \
! -wholename "*/.hg*" \
! -wholename "obj-ff-dbg*" \
! -name prtypes.h \
! -name Char16.h \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert PRUnichar char16_t
706 lines
19 KiB
C++
706 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsArrayEnumerator.h"
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#include "nsID.h"
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#include "nsCOMArray.h"
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#include "nsUnicharInputStream.h"
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#include "nsPrintfCString.h"
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#define PL_ARENA_CONST_ALIGN_MASK 3
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#include "nsPersistentProperties.h"
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#include "nsIProperties.h"
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struct PropertyTableEntry : public PLDHashEntryHdr
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{
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// both of these are arena-allocated
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const char *mKey;
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const char16_t *mValue;
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};
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static char16_t*
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ArenaStrdup(const nsAFlatString& aString, PLArenaPool* aArena)
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{
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void *mem;
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// add one to include the null terminator
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int32_t len = (aString.Length()+1) * sizeof(char16_t);
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PL_ARENA_ALLOCATE(mem, aArena, len);
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NS_ASSERTION(mem, "Couldn't allocate space!\n");
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if (mem) {
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memcpy(mem, aString.get(), len);
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}
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return static_cast<char16_t*>(mem);
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}
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static char*
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ArenaStrdup(const nsAFlatCString& aString, PLArenaPool* aArena)
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{
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void *mem;
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// add one to include the null terminator
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int32_t len = (aString.Length()+1) * sizeof(char);
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PL_ARENA_ALLOCATE(mem, aArena, len);
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NS_ASSERTION(mem, "Couldn't allocate space!\n");
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if (mem)
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memcpy(mem, aString.get(), len);
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return static_cast<char*>(mem);
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}
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static const struct PLDHashTableOps property_HashTableOps = {
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PL_DHashAllocTable,
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PL_DHashFreeTable,
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PL_DHashStringKey,
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PL_DHashMatchStringKey,
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PL_DHashMoveEntryStub,
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PL_DHashClearEntryStub,
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PL_DHashFinalizeStub,
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nullptr,
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};
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//
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// parser stuff
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//
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enum EParserState {
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eParserState_AwaitingKey,
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eParserState_Key,
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eParserState_AwaitingValue,
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eParserState_Value,
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eParserState_Comment
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};
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enum EParserSpecial {
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eParserSpecial_None, // not parsing a special character
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eParserSpecial_Escaped, // awaiting a special character
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eParserSpecial_Unicode // parsing a \Uxxx value
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};
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class nsPropertiesParser
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{
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public:
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nsPropertiesParser(nsIPersistentProperties* aProps) :
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mHaveMultiLine(false), mState(eParserState_AwaitingKey),
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mProps(aProps) {}
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void FinishValueState(nsAString& aOldValue) {
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static const char trimThese[] = " \t";
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mKey.Trim(trimThese, false, true);
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// This is really ugly hack but it should be fast
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char16_t backup_char;
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uint32_t minLength = mMinLength;
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if (minLength)
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{
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backup_char = mValue[minLength-1];
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mValue.SetCharAt('x', minLength-1);
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}
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mValue.Trim(trimThese, false, true);
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if (minLength)
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mValue.SetCharAt(backup_char, minLength-1);
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mProps->SetStringProperty(NS_ConvertUTF16toUTF8(mKey), mValue, aOldValue);
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mSpecialState = eParserSpecial_None;
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WaitForKey();
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}
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EParserState GetState() { return mState; }
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static NS_METHOD SegmentWriter(nsIUnicharInputStream* aStream,
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void* aClosure,
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const char16_t *aFromSegment,
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uint32_t aToOffset,
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uint32_t aCount,
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uint32_t *aWriteCount);
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nsresult ParseBuffer(const char16_t* aBuffer, uint32_t aBufferLength);
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private:
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bool ParseValueCharacter(
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char16_t c, // character that is just being parsed
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const char16_t* cur, // pointer to character c in the buffer
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const char16_t* &tokenStart, // string copying is done in blocks as big as
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// possible, tokenStart points to the beginning
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// of this block
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nsAString& oldValue); // when duplicate property is found, new value
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// is stored into hashtable and the old one is
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// placed in this variable
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void WaitForKey() {
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mState = eParserState_AwaitingKey;
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}
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void EnterKeyState() {
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mKey.Truncate();
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mState = eParserState_Key;
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}
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void WaitForValue() {
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mState = eParserState_AwaitingValue;
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}
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void EnterValueState() {
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mValue.Truncate();
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mMinLength = 0;
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mState = eParserState_Value;
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mSpecialState = eParserSpecial_None;
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}
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void EnterCommentState() {
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mState = eParserState_Comment;
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}
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nsAutoString mKey;
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nsAutoString mValue;
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uint32_t mUnicodeValuesRead; // should be 4!
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char16_t mUnicodeValue; // currently parsed unicode value
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bool mHaveMultiLine; // is TRUE when last processed characters form
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// any of following sequences:
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// - "\\\r"
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// - "\\\n"
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// - "\\\r\n"
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// - any sequence above followed by any
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// combination of ' ' and '\t'
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bool mMultiLineCanSkipN; // TRUE if "\\\r" was detected
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uint32_t mMinLength; // limit right trimming at the end to not trim
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// escaped whitespaces
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EParserState mState;
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// if we see a '\' then we enter this special state
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EParserSpecial mSpecialState;
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nsIPersistentProperties* mProps;
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};
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inline bool IsWhiteSpace(char16_t aChar)
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{
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return (aChar == ' ') || (aChar == '\t') ||
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(aChar == '\r') || (aChar == '\n');
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}
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inline bool IsEOL(char16_t aChar)
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{
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return (aChar == '\r') || (aChar == '\n');
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}
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bool nsPropertiesParser::ParseValueCharacter(
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char16_t c, const char16_t* cur, const char16_t* &tokenStart,
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nsAString& oldValue)
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{
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switch (mSpecialState) {
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// the normal state - look for special characters
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case eParserSpecial_None:
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switch (c) {
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case '\\':
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if (mHaveMultiLine)
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// there is nothing to append to mValue yet
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mHaveMultiLine = false;
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else
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mValue += Substring(tokenStart, cur);
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mSpecialState = eParserSpecial_Escaped;
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break;
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case '\n':
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// if we detected multiline and got only "\\\r" ignore next "\n" if any
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if (mHaveMultiLine && mMultiLineCanSkipN) {
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// but don't allow another '\n' to be skipped
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mMultiLineCanSkipN = false;
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// Now there is nothing to append to the mValue since we are skipping
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// whitespaces at the beginning of the new line of the multiline
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// property. Set tokenStart properly to ensure that nothing is appended
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// if we find regular line-end or the end of the buffer.
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tokenStart = cur+1;
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break;
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}
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// no break
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case '\r':
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// we're done! We have a key and value
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mValue += Substring(tokenStart, cur);
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FinishValueState(oldValue);
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mHaveMultiLine = false;
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break;
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default:
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// there is nothing to do with normal characters,
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// but handle multilines correctly
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if (mHaveMultiLine) {
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if (c == ' ' || c == '\t') {
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// don't allow another '\n' to be skipped
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mMultiLineCanSkipN = false;
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// Now there is nothing to append to the mValue since we are skipping
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// whitespaces at the beginning of the new line of the multiline
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// property. Set tokenStart properly to ensure that nothing is appended
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// if we find regular line-end or the end of the buffer.
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tokenStart = cur+1;
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break;
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}
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mHaveMultiLine = false;
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tokenStart = cur;
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}
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break; // from switch on (c)
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}
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break; // from switch on (mSpecialState)
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// saw a \ character, so parse the character after that
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case eParserSpecial_Escaped:
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// probably want to start parsing at the next token
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// other characters, like 'u' might override this
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tokenStart = cur+1;
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mSpecialState = eParserSpecial_None;
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switch (c) {
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// the easy characters - \t, \n, and so forth
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case 't':
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mValue += char16_t('\t');
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mMinLength = mValue.Length();
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break;
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case 'n':
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mValue += char16_t('\n');
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mMinLength = mValue.Length();
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break;
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case 'r':
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mValue += char16_t('\r');
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mMinLength = mValue.Length();
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break;
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case '\\':
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mValue += char16_t('\\');
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break;
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// switch to unicode mode!
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case 'u':
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case 'U':
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mSpecialState = eParserSpecial_Unicode;
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mUnicodeValuesRead = 0;
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mUnicodeValue = 0;
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break;
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// a \ immediately followed by a newline means we're going multiline
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case '\r':
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case '\n':
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mHaveMultiLine = true;
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mMultiLineCanSkipN = (c == '\r');
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mSpecialState = eParserSpecial_None;
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break;
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default:
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// don't recognize the character, so just append it
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mValue += c;
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break;
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}
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break;
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// we're in the middle of parsing a 4-character unicode value
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// like \u5f39
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case eParserSpecial_Unicode:
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if(('0' <= c) && (c <= '9'))
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mUnicodeValue =
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(mUnicodeValue << 4) | (c - '0');
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else if(('a' <= c) && (c <= 'f'))
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mUnicodeValue =
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(mUnicodeValue << 4) | (c - 'a' + 0x0a);
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else if(('A' <= c) && (c <= 'F'))
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mUnicodeValue =
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(mUnicodeValue << 4) | (c - 'A' + 0x0a);
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else {
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// non-hex character. Append what we have, and move on.
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mValue += mUnicodeValue;
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mMinLength = mValue.Length();
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mSpecialState = eParserSpecial_None;
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// leave tokenStart at this unknown character, so it gets appended
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tokenStart = cur;
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// ensure parsing this non-hex character again
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return false;
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}
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if (++mUnicodeValuesRead >= 4) {
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tokenStart = cur+1;
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mSpecialState = eParserSpecial_None;
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mValue += mUnicodeValue;
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mMinLength = mValue.Length();
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}
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break;
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}
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return true;
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}
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NS_METHOD nsPropertiesParser::SegmentWriter(nsIUnicharInputStream* aStream,
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void* aClosure,
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const char16_t *aFromSegment,
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uint32_t aToOffset,
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uint32_t aCount,
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uint32_t *aWriteCount)
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{
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nsPropertiesParser *parser =
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static_cast<nsPropertiesParser *>(aClosure);
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parser->ParseBuffer(aFromSegment, aCount);
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*aWriteCount = aCount;
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return NS_OK;
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}
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nsresult nsPropertiesParser::ParseBuffer(const char16_t* aBuffer,
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uint32_t aBufferLength)
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{
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const char16_t* cur = aBuffer;
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const char16_t* end = aBuffer + aBufferLength;
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// points to the start/end of the current key or value
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const char16_t* tokenStart = nullptr;
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// if we're in the middle of parsing a key or value, make sure
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// the current token points to the beginning of the current buffer
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if (mState == eParserState_Key ||
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mState == eParserState_Value) {
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tokenStart = aBuffer;
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}
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nsAutoString oldValue;
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while (cur != end) {
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char16_t c = *cur;
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switch (mState) {
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case eParserState_AwaitingKey:
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if (c == '#' || c == '!')
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EnterCommentState();
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else if (!IsWhiteSpace(c)) {
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// not a comment, not whitespace, we must have found a key!
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EnterKeyState();
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tokenStart = cur;
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}
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break;
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case eParserState_Key:
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if (c == '=' || c == ':') {
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mKey += Substring(tokenStart, cur);
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WaitForValue();
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}
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break;
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case eParserState_AwaitingValue:
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if (IsEOL(c)) {
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// no value at all! mimic the normal value-ending
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EnterValueState();
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FinishValueState(oldValue);
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}
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// ignore white space leading up to the value
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else if (!IsWhiteSpace(c)) {
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tokenStart = cur;
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EnterValueState();
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// make sure to handle this first character
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if (ParseValueCharacter(c, cur, tokenStart, oldValue))
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cur++;
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// If the character isn't consumed, don't do cur++ and parse
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// the character again. This can happen f.e. for char 'X' in sequence
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// "\u00X". This character can be control character and must be
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// processed again.
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continue;
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}
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break;
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case eParserState_Value:
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if (ParseValueCharacter(c, cur, tokenStart, oldValue))
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cur++;
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// See few lines above for reason of doing this
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continue;
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case eParserState_Comment:
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// stay in this state till we hit EOL
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if (c == '\r' || c== '\n')
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WaitForKey();
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break;
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}
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// finally, advance to the next character
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cur++;
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}
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// if we're still parsing the value and are in eParserSpecial_None, then
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// append whatever we have..
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if (mState == eParserState_Value && tokenStart &&
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mSpecialState == eParserSpecial_None) {
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mValue += Substring(tokenStart, cur);
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}
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// if we're still parsing the key, then append whatever we have..
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else if (mState == eParserState_Key && tokenStart) {
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mKey += Substring(tokenStart, cur);
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}
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return NS_OK;
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}
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nsPersistentProperties::nsPersistentProperties()
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: mIn(nullptr)
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{
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mSubclass = static_cast<nsIPersistentProperties*>(this);
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mTable.ops = nullptr;
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PL_INIT_ARENA_POOL(&mArena, "PersistentPropertyArena", 2048);
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}
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nsPersistentProperties::~nsPersistentProperties()
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{
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PL_FinishArenaPool(&mArena);
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if (mTable.ops)
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PL_DHashTableFinish(&mTable);
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}
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nsresult
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nsPersistentProperties::Init()
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{
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if (!PL_DHashTableInit(&mTable, &property_HashTableOps, nullptr,
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sizeof(PropertyTableEntry), 20)) {
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mTable.ops = nullptr;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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nsresult
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nsPersistentProperties::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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if (aOuter)
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return NS_ERROR_NO_AGGREGATION;
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nsPersistentProperties* props = new nsPersistentProperties();
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if (props == nullptr)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(props);
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nsresult rv = props->Init();
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if (NS_SUCCEEDED(rv))
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rv = props->QueryInterface(aIID, aResult);
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NS_RELEASE(props);
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return rv;
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}
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NS_IMPL_ISUPPORTS2(nsPersistentProperties, nsIPersistentProperties, nsIProperties)
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NS_IMETHODIMP
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nsPersistentProperties::Load(nsIInputStream *aIn)
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{
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nsresult rv = nsSimpleUnicharStreamFactory::GetInstance()->
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CreateInstanceFromUTF8Stream(aIn, getter_AddRefs(mIn));
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if (rv != NS_OK) {
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NS_WARNING("Error creating UnicharInputStream");
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return NS_ERROR_FAILURE;
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}
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nsPropertiesParser parser(mSubclass);
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uint32_t nProcessed;
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// If this 4096 is changed to some other value, make sure to adjust
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// the bug121341.properties test file accordingly.
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while (NS_SUCCEEDED(rv = mIn->ReadSegments(nsPropertiesParser::SegmentWriter, &parser, 4096, &nProcessed)) &&
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nProcessed != 0);
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mIn = nullptr;
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if (NS_FAILED(rv))
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return rv;
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// We may have an unprocessed value at this point
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// if the last line did not have a proper line ending.
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if (parser.GetState() == eParserState_Value) {
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nsAutoString oldValue;
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parser.FinishValueState(oldValue);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsPersistentProperties::SetStringProperty(const nsACString& aKey,
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const nsAString& aNewValue,
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nsAString& aOldValue)
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{
|
|
const nsAFlatCString& flatKey = PromiseFlatCString(aKey);
|
|
PropertyTableEntry *entry =
|
|
static_cast<PropertyTableEntry*>
|
|
(PL_DHashTableOperate(&mTable, flatKey.get(), PL_DHASH_ADD));
|
|
|
|
if (entry->mKey) {
|
|
aOldValue = entry->mValue;
|
|
NS_WARNING(nsPrintfCString("the property %s already exists\n",
|
|
flatKey.get()).get());
|
|
}
|
|
else {
|
|
aOldValue.Truncate();
|
|
}
|
|
|
|
entry->mKey = ArenaStrdup(flatKey, &mArena);
|
|
entry->mValue = ArenaStrdup(PromiseFlatString(aNewValue), &mArena);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Save(nsIOutputStream* aOut, const nsACString& aHeader)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Subclass(nsIPersistentProperties* aSubclass)
|
|
{
|
|
if (aSubclass) {
|
|
mSubclass = aSubclass;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::GetStringProperty(const nsACString& aKey,
|
|
nsAString& aValue)
|
|
{
|
|
const nsAFlatCString& flatKey = PromiseFlatCString(aKey);
|
|
|
|
PropertyTableEntry *entry =
|
|
static_cast<PropertyTableEntry*>
|
|
(PL_DHashTableOperate(&mTable, flatKey.get(), PL_DHASH_LOOKUP));
|
|
|
|
if (PL_DHASH_ENTRY_IS_FREE(entry))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
aValue = entry->mValue;
|
|
return NS_OK;
|
|
}
|
|
|
|
static PLDHashOperator
|
|
AddElemToArray(PLDHashTable* table, PLDHashEntryHdr *hdr,
|
|
uint32_t i, void *arg)
|
|
{
|
|
nsCOMArray<nsIPropertyElement>* props =
|
|
static_cast<nsCOMArray<nsIPropertyElement>*>(arg);
|
|
PropertyTableEntry* entry =
|
|
static_cast<PropertyTableEntry*>(hdr);
|
|
|
|
nsPropertyElement *element =
|
|
new nsPropertyElement(nsDependentCString(entry->mKey),
|
|
nsDependentString(entry->mValue));
|
|
|
|
props->AppendObject(element);
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Enumerate(nsISimpleEnumerator** aResult)
|
|
{
|
|
nsCOMArray<nsIPropertyElement> props;
|
|
|
|
// We know the necessary size; we can avoid growing it while adding elements
|
|
props.SetCapacity(mTable.entryCount);
|
|
|
|
// Step through hash entries populating a transient array
|
|
uint32_t n =
|
|
PL_DHashTableEnumerate(&mTable, AddElemToArray, (void *)&props);
|
|
if (n < mTable.entryCount)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
return NS_NewArrayEnumerator(aResult, props);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// XXX Some day we'll unify the nsIPersistentProperties interface with
|
|
// nsIProperties, but until now...
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Get(const char* prop, const nsIID & uuid, void* *result)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Set(const char* prop, nsISupports* value)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Undefine(const char* prop)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Has(const char* prop, bool *result)
|
|
{
|
|
PropertyTableEntry *entry =
|
|
static_cast<PropertyTableEntry*>
|
|
(PL_DHashTableOperate(&mTable, prop, PL_DHASH_LOOKUP));
|
|
|
|
*result = (entry && PL_DHASH_ENTRY_IS_BUSY(entry));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::GetKeys(uint32_t *count, char ***keys)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// PropertyElement
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
NS_METHOD
|
|
nsPropertyElement::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
|
|
{
|
|
if (aOuter)
|
|
return NS_ERROR_NO_AGGREGATION;
|
|
nsPropertyElement* propElem = new nsPropertyElement();
|
|
if (propElem == nullptr)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(propElem);
|
|
nsresult rv = propElem->QueryInterface(aIID, aResult);
|
|
NS_RELEASE(propElem);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS1(nsPropertyElement, nsIPropertyElement)
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::GetKey(nsACString& aReturnKey)
|
|
{
|
|
aReturnKey = mKey;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::GetValue(nsAString& aReturnValue)
|
|
{
|
|
aReturnValue = mValue;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::SetKey(const nsACString& aKey)
|
|
{
|
|
mKey = aKey;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::SetValue(const nsAString& aValue)
|
|
{
|
|
mValue = aValue;
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|