mirror of
https://github.com/RPCS3/rpcs3.git
synced 2025-07-05 06:21:26 +12:00
Moved scalar scanning-related parameters to a struct.
Renamed the valid/possible tokens to a single variable status with enums valid, invalid, and unverified.
This commit is contained in:
Jesse Beder
parent
ff99f85a6d
commit
5f8252ee6f
10 changed files with 104 additions and 50 deletions
15
regex.cpp
15
regex.cpp
|
|
@ -45,6 +45,21 @@ namespace YAML
|
|||
delete m_pOp;
|
||||
}
|
||||
|
||||
RegEx& RegEx::operator = (const RegEx& rhs)
|
||||
{
|
||||
delete m_pOp;
|
||||
m_pOp = 0;
|
||||
|
||||
m_op = rhs.m_op;
|
||||
m_a = rhs.m_a;
|
||||
m_z = rhs.m_z;
|
||||
m_params = rhs.m_params;
|
||||
|
||||
SetOp();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
void RegEx::SetOp()
|
||||
{
|
||||
delete m_pOp;
|
||||
|
|
|
|||
2
regex.h
2
regex.h
|
|
@ -60,6 +60,8 @@ namespace YAML
|
|||
RegEx(const RegEx& rhs);
|
||||
~RegEx();
|
||||
|
||||
RegEx& operator = (const RegEx& rhs);
|
||||
|
||||
bool Matches(char ch) const;
|
||||
bool Matches(const std::string& str) const;
|
||||
bool Matches(std::istream& in) const;
|
||||
|
|
|
|||
11
scanner.cpp
11
scanner.cpp
|
|
@ -123,7 +123,7 @@ namespace YAML
|
|||
ScanToNextToken();
|
||||
|
||||
// check the latest simple key
|
||||
ValidateSimpleKey();
|
||||
VerifySimpleKey();
|
||||
|
||||
// maybe need to end some blocks
|
||||
PopIndentTo(INPUT.column);
|
||||
|
|
@ -213,7 +213,7 @@ namespace YAML
|
|||
INPUT.EatLineBreak();
|
||||
|
||||
// oh yeah, and let's get rid of that simple key
|
||||
ValidateSimpleKey();
|
||||
VerifySimpleKey();
|
||||
|
||||
// new line - we may be able to accept a simple key now
|
||||
if(m_flowLevel == 0)
|
||||
|
|
@ -272,16 +272,15 @@ namespace YAML
|
|||
if(!m_tokens.empty())
|
||||
pToken = m_tokens.front();
|
||||
|
||||
// ... that's possible
|
||||
// (here's where we clean up the impossible tokens)
|
||||
if(pToken && !pToken->isPossible) {
|
||||
if(pToken && pToken->status == TS_INVALID) {
|
||||
m_tokens.pop();
|
||||
delete pToken;
|
||||
continue;
|
||||
}
|
||||
|
||||
// and valid
|
||||
if(pToken && !pToken->isValid)
|
||||
// on unverified tokens, we just have to wait
|
||||
if(pToken && pToken->status == TS_UNVERIFIED)
|
||||
pToken = 0;
|
||||
|
||||
// then that's what we want
|
||||
|
|
|
|||
|
|
@ -26,8 +26,8 @@ namespace YAML
|
|||
void PopIndentTo(int column);
|
||||
|
||||
void InsertSimpleKey();
|
||||
bool ValidateSimpleKey();
|
||||
void ValidateAllSimpleKeys();
|
||||
bool VerifySimpleKey();
|
||||
void VerifyAllSimpleKeys();
|
||||
|
||||
void Scan();
|
||||
|
||||
|
|
|
|||
|
|
@ -135,14 +135,20 @@ namespace YAML
|
|||
// scalar += info.Join();
|
||||
//}
|
||||
|
||||
RegEx end = (m_flowLevel > 0 ? Exp::EndScalarInFlow : Exp::EndScalar) || (RegEx(' ') + Exp::Comment);
|
||||
int indent = (m_flowLevel > 0 ? 0 : m_indents.top() + 1);
|
||||
ScanScalarInfo info;
|
||||
info.end = (m_flowLevel > 0 ? Exp::EndScalarInFlow : Exp::EndScalar) || (RegEx(' ') + Exp::Comment);
|
||||
info.eatEnd = false;
|
||||
info.indent = (m_flowLevel > 0 ? 0 : m_indents.top() + 1);
|
||||
info.fold = true;
|
||||
info.eatLeadingWhitespace = true;
|
||||
info.trimTrailingSpaces = true;
|
||||
info.chomp = CLIP;
|
||||
|
||||
// insert a potential simple key
|
||||
if(m_simpleKeyAllowed)
|
||||
InsertSimpleKey();
|
||||
|
||||
pToken->value = ScanScalar(INPUT, end, false, indent, 0, true, true, true, 0);
|
||||
pToken->value = ScanScalar(INPUT, info);
|
||||
|
||||
m_simpleKeyAllowed = false;
|
||||
if(true/*info.leadingBlanks*/)
|
||||
|
|
@ -224,14 +230,21 @@ namespace YAML
|
|||
char quote = INPUT.GetChar();
|
||||
pToken->single = (quote == '\'');
|
||||
|
||||
RegEx end = (pToken->single ? RegEx(quote) && !Exp::EscSingleQuote : RegEx(quote));
|
||||
char escape = (pToken->single ? '\'' : '\\');
|
||||
ScanScalarInfo info;
|
||||
info.end = (pToken->single ? RegEx(quote) && !Exp::EscSingleQuote : RegEx(quote));
|
||||
info.eatEnd = true;
|
||||
info.escape = (pToken->single ? '\'' : '\\');
|
||||
info.indent = 0;
|
||||
info.fold = true;
|
||||
info.eatLeadingWhitespace = true;
|
||||
info.trimTrailingSpaces = false;
|
||||
info.chomp = CLIP;
|
||||
|
||||
// insert a potential simple key
|
||||
if(m_simpleKeyAllowed)
|
||||
InsertSimpleKey();
|
||||
|
||||
pToken->value = ScanScalar(INPUT, end, true, 0, escape, true, true, false, 0);
|
||||
pToken->value = ScanScalar(INPUT, info);
|
||||
m_simpleKeyAllowed = false;
|
||||
|
||||
return pToken;
|
||||
|
|
@ -274,8 +287,14 @@ namespace YAML
|
|||
|
||||
GetBlockIndentation(INPUT, indent, info.trailingBreaks, m_indents.top());
|
||||
|
||||
bool eatLeadingWhitespace = false;
|
||||
pToken->value = ScanScalar(INPUT, RegEx(), false, indent, 0, info.fold, eatLeadingWhitespace, false, info.chomp);
|
||||
ScanScalarInfo sinfo;
|
||||
sinfo.indent = indent;
|
||||
sinfo.fold = info.fold;
|
||||
sinfo.eatLeadingWhitespace = false;
|
||||
sinfo.trimTrailingSpaces = false;
|
||||
sinfo.chomp = (CHOMP) info.chomp;
|
||||
|
||||
pToken->value = ScanScalar(INPUT, sinfo);
|
||||
|
||||
// simple keys always ok after block scalars (since we're gonna start a new line anyways)
|
||||
m_simpleKeyAllowed = true;
|
||||
|
|
@ -322,7 +341,7 @@ namespace YAML
|
|||
}
|
||||
|
||||
// ScanScalar
|
||||
std::string ScanScalar(Stream& INPUT, RegEx end, bool eatEnd, int indent, char escape, bool fold, bool eatLeadingWhitespace, bool trimTrailingSpaces, int chomp)
|
||||
std::string ScanScalar(Stream& INPUT, ScanScalarInfo info)
|
||||
{
|
||||
bool emptyLine = false, moreIndented = false;
|
||||
std::string scalar;
|
||||
|
|
@ -330,19 +349,19 @@ namespace YAML
|
|||
while(INPUT) {
|
||||
// ********************************
|
||||
// Phase #1: scan until line ending
|
||||
while(!end.Matches(INPUT) && !Exp::Break.Matches(INPUT)) {
|
||||
while(!info.end.Matches(INPUT) && !Exp::Break.Matches(INPUT)) {
|
||||
if(INPUT.peek() == EOF)
|
||||
break;
|
||||
|
||||
// escaped newline? (only if we're escaping on slash)
|
||||
if(escape == '\\' && Exp::EscBreak.Matches(INPUT)) {
|
||||
if(info.escape == '\\' && Exp::EscBreak.Matches(INPUT)) {
|
||||
int n = Exp::EscBreak.Match(INPUT);
|
||||
INPUT.Eat(n);
|
||||
continue;
|
||||
}
|
||||
|
||||
// escape this?
|
||||
if(INPUT.peek() == escape) {
|
||||
if(INPUT.peek() == info.escape) {
|
||||
scalar += Exp::Escape(INPUT);
|
||||
continue;
|
||||
}
|
||||
|
|
@ -353,15 +372,15 @@ namespace YAML
|
|||
|
||||
// eof? if we're looking to eat something, then we throw
|
||||
if(INPUT.peek() == EOF) {
|
||||
if(eatEnd)
|
||||
if(info.eatEnd)
|
||||
throw EOFInQuote();
|
||||
break;
|
||||
}
|
||||
|
||||
// are we done via character match?
|
||||
int n = end.Match(INPUT);
|
||||
int n = info.end.Match(INPUT);
|
||||
if(n >= 0) {
|
||||
if(eatEnd)
|
||||
if(info.eatEnd)
|
||||
INPUT.Eat(n);
|
||||
break;
|
||||
}
|
||||
|
|
@ -375,11 +394,11 @@ namespace YAML
|
|||
// Phase #3: scan initial spaces
|
||||
|
||||
// first the required indentation
|
||||
while(INPUT.peek() == ' ' && INPUT.column < indent)
|
||||
while(INPUT.peek() == ' ' && INPUT.column < info.indent)
|
||||
INPUT.Eat(1);
|
||||
|
||||
// and then the rest of the whitespace
|
||||
if(eatLeadingWhitespace) {
|
||||
if(info.eatLeadingWhitespace) {
|
||||
while(Exp::Blank.Matches(INPUT))
|
||||
INPUT.Eat(1);
|
||||
}
|
||||
|
|
@ -388,7 +407,7 @@ namespace YAML
|
|||
bool nextEmptyLine = Exp::Break.Matches(INPUT);
|
||||
bool nextMoreIndented = (INPUT.peek() == ' ');
|
||||
|
||||
if(fold && !emptyLine && !nextEmptyLine && !moreIndented && !nextMoreIndented)
|
||||
if(info.fold && !emptyLine && !nextEmptyLine && !moreIndented && !nextMoreIndented)
|
||||
scalar += " ";
|
||||
else
|
||||
scalar += "\n";
|
||||
|
|
@ -397,22 +416,22 @@ namespace YAML
|
|||
moreIndented = nextMoreIndented;
|
||||
|
||||
// are we done via indentation?
|
||||
if(!emptyLine && INPUT.column < indent)
|
||||
if(!emptyLine && INPUT.column < info.indent)
|
||||
break;
|
||||
}
|
||||
|
||||
// post-processing
|
||||
if(trimTrailingSpaces) {
|
||||
if(info.trimTrailingSpaces) {
|
||||
unsigned pos = scalar.find_last_not_of(' ');
|
||||
if(pos < scalar.size())
|
||||
scalar.erase(pos + 1);
|
||||
}
|
||||
|
||||
if(chomp <= 0) {
|
||||
if(info.chomp <= 0) {
|
||||
unsigned pos = scalar.find_last_not_of('\n');
|
||||
if(chomp == 0 && pos + 1 < scalar.size())
|
||||
if(info.chomp == 0 && pos + 1 < scalar.size())
|
||||
scalar.erase(pos + 2);
|
||||
else if(chomp == -1 && pos < scalar.size())
|
||||
else if(info.chomp == -1 && pos < scalar.size())
|
||||
scalar.erase(pos + 1);
|
||||
}
|
||||
|
||||
|
|
|
|||
18
scanscalar.h
18
scanscalar.h
|
|
@ -6,8 +6,24 @@
|
|||
|
||||
namespace YAML
|
||||
{
|
||||
enum CHOMP { STRIP = -1, CLIP, KEEP };
|
||||
|
||||
struct ScanScalarInfo {
|
||||
ScanScalarInfo(): eatEnd(false), indent(0), eatLeadingWhitespace(0), escape(0), fold(false), trimTrailingSpaces(0), chomp(CLIP) {}
|
||||
|
||||
RegEx end; // what condition ends this scalar?
|
||||
bool eatEnd; // should we eat that condition when we see it?
|
||||
int indent; // what level of indentation should be eaten and ignored?
|
||||
bool eatLeadingWhitespace; // should we continue eating this delicious indentation after 'indent' spaces?
|
||||
char escape; // what character do we escape on (i.e., slash or single quote) (0 for none)
|
||||
bool fold; // do we fold line ends?
|
||||
bool trimTrailingSpaces; // do we remove all trailing spaces (at the very end)
|
||||
CHOMP chomp; // do we strip, clip, or keep trailing newlines (at the very end)
|
||||
// Note: strip means kill all, clip means keep at most one, keep means keep all
|
||||
};
|
||||
|
||||
void GetBlockIndentation(Stream& INPUT, int& indent, std::string& breaks, int topIndent);
|
||||
std::string ScanScalar(Stream& INPUT, RegEx end, bool eatEnd, int indent, char escape, bool fold, bool eatLeadingWhitespace, bool trimTrailingSpaces, int chomp);
|
||||
std::string ScanScalar(Stream& INPUT, ScanScalarInfo info);
|
||||
|
||||
struct WhitespaceInfo {
|
||||
WhitespaceInfo();
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ namespace YAML
|
|||
INPUT.column = 0;
|
||||
|
||||
PopIndentTo(-1);
|
||||
ValidateAllSimpleKeys();
|
||||
VerifyAllSimpleKeys();
|
||||
|
||||
m_simpleKeyAllowed = false;
|
||||
m_endedStream = true;
|
||||
|
|
@ -38,7 +38,7 @@ namespace YAML
|
|||
template <> DocumentStartToken *Scanner::ScanToken(DocumentStartToken *pToken)
|
||||
{
|
||||
PopIndentTo(INPUT.column);
|
||||
ValidateAllSimpleKeys();
|
||||
VerifyAllSimpleKeys();
|
||||
m_simpleKeyAllowed = false;
|
||||
|
||||
// eat
|
||||
|
|
@ -50,7 +50,7 @@ namespace YAML
|
|||
template <> DocumentEndToken *Scanner::ScanToken(DocumentEndToken *pToken)
|
||||
{
|
||||
PopIndentTo(-1);
|
||||
ValidateAllSimpleKeys();
|
||||
VerifyAllSimpleKeys();
|
||||
m_simpleKeyAllowed = false;
|
||||
|
||||
// eat
|
||||
|
|
|
|||
|
|
@ -13,9 +13,9 @@ namespace YAML
|
|||
void Scanner::SimpleKey::Validate()
|
||||
{
|
||||
if(pMapStart)
|
||||
pMapStart->isValid = true;
|
||||
pMapStart->status = TS_VALID;
|
||||
if(pKey)
|
||||
pKey->isValid = true;
|
||||
pKey->status = TS_VALID;
|
||||
}
|
||||
|
||||
void Scanner::SimpleKey::Invalidate()
|
||||
|
|
@ -24,9 +24,9 @@ namespace YAML
|
|||
throw RequiredSimpleKeyNotFound();
|
||||
|
||||
if(pMapStart)
|
||||
pMapStart->isPossible = false;
|
||||
pMapStart->status = TS_INVALID;
|
||||
if(pKey)
|
||||
pKey->isPossible = false;
|
||||
pKey->status = TS_INVALID;
|
||||
}
|
||||
|
||||
// InsertSimpleKey
|
||||
|
|
@ -39,23 +39,22 @@ namespace YAML
|
|||
// first add a map start, if necessary
|
||||
key.pMapStart = PushIndentTo(INPUT.column, false);
|
||||
if(key.pMapStart)
|
||||
key.pMapStart->isValid = false;
|
||||
key.pMapStart->status = TS_UNVERIFIED;
|
||||
// else
|
||||
// key.required = true; // TODO: is this correct?
|
||||
|
||||
// then add the (now invalid) key
|
||||
// then add the (now unverified) key
|
||||
key.pKey = new KeyToken;
|
||||
key.pKey->isValid = false;
|
||||
|
||||
key.pKey->status = TS_UNVERIFIED;
|
||||
m_tokens.push(key.pKey);
|
||||
|
||||
m_simpleKeys.push(key);
|
||||
}
|
||||
|
||||
// ValidateSimpleKey
|
||||
// VerifySimpleKey
|
||||
// . Determines whether the latest simple key to be added is valid,
|
||||
// and if so, makes it valid.
|
||||
bool Scanner::ValidateSimpleKey()
|
||||
bool Scanner::VerifySimpleKey()
|
||||
{
|
||||
m_isLastKeyValid = false;
|
||||
if(m_simpleKeys.empty())
|
||||
|
|
@ -99,9 +98,9 @@ namespace YAML
|
|||
return isValid;
|
||||
}
|
||||
|
||||
void Scanner::ValidateAllSimpleKeys()
|
||||
void Scanner::VerifyAllSimpleKeys()
|
||||
{
|
||||
while(!m_simpleKeys.empty())
|
||||
ValidateSimpleKey();
|
||||
VerifySimpleKey();
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -10,3 +10,5 @@
|
|||
std::cout << "Hello World!\n";
|
||||
return 0;
|
||||
}
|
||||
- key1: value1
|
||||
key2: value2
|
||||
6
token.h
6
token.h
|
|
@ -4,13 +4,15 @@
|
|||
|
||||
namespace YAML
|
||||
{
|
||||
enum TOKEN_STATUS { TS_VALID, TS_INVALID, TS_UNVERIFIED };
|
||||
|
||||
struct Token {
|
||||
Token(): isValid(true), isPossible(true) {}
|
||||
Token(): status(TS_VALID) {}
|
||||
virtual ~Token() {}
|
||||
virtual void Write(std::ostream& out) const {}
|
||||
|
||||
friend std::ostream& operator << (std::ostream& out, const Token& token) { token.Write(out); return out; }
|
||||
bool isValid, isPossible;
|
||||
TOKEN_STATUS status;
|
||||
};
|
||||
|
||||
struct StreamStartToken: public Token {};
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue