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yaml-cpp
Commit 07d4cac4 by Jesse Beder
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Added directives and tags.

parent 2b862892
Showing with 121 additions and 159 deletions
exp.h
......@@ -57,6 +57,7 @@ namespace YAML
namespace Keys
{
const char Directive = '%';
const char FlowSeqStart = '[';
const char FlowSeqEnd = ']';
const char FlowMapStart = '{';
......
scanner.cpp
......@@ -44,56 +44,6 @@ namespace YAML
return false;
}
// IsDocumentStart
bool Scanner::IsDocumentStart()
{
// needs to be at the start of a new line
if(INPUT.column != 0)
return false;
return Exp::DocStart.Matches(INPUT);
}
// IsDocumentEnd
bool Scanner::IsDocumentEnd()
{
// needs to be at the start of a new line
if(INPUT.column != 0)
return false;
return Exp::DocEnd.Matches(INPUT);
}
// IsBlockEntry
bool Scanner::IsBlockEntry()
{
return Exp::BlockEntry.Matches(INPUT);
}
// IsKey
bool Scanner::IsKey()
{
if(m_flowLevel > 0)
return Exp::KeyInFlow.Matches(INPUT);
return Exp::Key.Matches(INPUT);
}
// IsValue
bool Scanner::IsValue()
{
if(m_flowLevel > 0)
return Exp::ValueInFlow.Matches(INPUT);
return Exp::Value.Matches(INPUT);
}
// IsPlainScalar
bool Scanner::IsPlainScalar()
{
if(m_flowLevel > 0)
return Exp::PlainScalarInFlow.Matches(INPUT);
return Exp::PlainScalar.Matches(INPUT);
}
// ScanAndEnqueue
// . Scans the token, then pushes it in the queue.
// . Note: we also use a set of "limbo tokens", i.e., tokens
......@@ -136,11 +86,14 @@ namespace YAML
if(INPUT.peek() == EOF)
return ScanAndEnqueue(new StreamEndToken);
if(INPUT.column == 0 && INPUT.peek() == Keys::Directive)
return ScanAndEnqueue(new DirectiveToken);
// document token
if(IsDocumentStart())
if(INPUT.column == 0 && Exp::DocStart.Matches(INPUT))
return ScanAndEnqueue(new DocumentStartToken);
if(IsDocumentEnd())
if(INPUT.column == 0 && Exp::DocEnd.Matches(INPUT))
return ScanAndEnqueue(new DocumentEndToken);
// flow start/end/entry
......@@ -160,19 +113,22 @@ namespace YAML
return ScanAndEnqueue(new FlowEntryToken);
// block/map stuff
if(IsBlockEntry())
if(Exp::BlockEntry.Matches(INPUT))
return ScanAndEnqueue(new BlockEntryToken);
if(IsKey())
if((m_flowLevel == 0 ? Exp::Key : Exp::KeyInFlow).Matches(INPUT))
return ScanAndEnqueue(new KeyToken);
if(IsValue())
if((m_flowLevel == 0 ? Exp::Value : Exp::ValueInFlow).Matches(INPUT))
return ScanAndEnqueue(new ValueToken);
// alias/anchor
if(INPUT.peek() == Keys::Alias || INPUT.peek() == Keys::Anchor)
return ScanAndEnqueue(new AnchorToken);
// TODO: tag
// tag
if(INPUT.peek() == Keys::Tag)
return ScanAndEnqueue(new TagToken);
// special scalars
if(m_flowLevel == 0 && (INPUT.peek() == Keys::LiteralScalar || INPUT.peek() == Keys::FoldedScalar))
......@@ -182,7 +138,7 @@ namespace YAML
return ScanAndEnqueue(new QuotedScalarToken);
// plain scalars
if(IsPlainScalar())
if((m_flowLevel == 0 ? Exp::PlainScalar : Exp::PlainScalarInFlow).Matches(INPUT))
return ScanAndEnqueue(new PlainScalarToken);
// don't know what it is!
......
scanner.h
......@@ -34,12 +34,6 @@ namespace YAML
void VerifyAllSimpleKeys();
bool IsWhitespaceToBeEaten(char ch);
bool IsDocumentStart();
bool IsDocumentEnd();
bool IsBlockEntry();
bool IsKey();
bool IsValue();
bool IsPlainScalar();
struct SimpleKey {
SimpleKey(int pos_, int line_, int column_, int flowLevel_);
......
scantoken.cpp
......@@ -35,6 +35,44 @@ namespace YAML
return pToken;
}
// DirectiveToken
// . Note: no semantic checking is done here (that's for the parser to do)
template <> DirectiveToken *Scanner::ScanToken(DirectiveToken *pToken)
{
// pop indents and simple keys
PopIndentTo(-1);
VerifyAllSimpleKeys();
m_simpleKeyAllowed = false;
// eat indicator
INPUT.Eat(1);
// read name
while(INPUT.peek() != EOF && !Exp::BlankOrBreak.Matches(INPUT))
pToken->name += INPUT.GetChar();
// read parameters
while(1) {
// first get rid of whitespace
while(Exp::Blank.Matches(INPUT))
INPUT.Eat(1);
// break on newline or comment
if(INPUT.peek() == EOF || Exp::Break.Matches(INPUT) || Exp::Comment.Matches(INPUT))
break;
// now read parameter
std::string param;
while(INPUT.peek() != EOF && !Exp::BlankOrBreak.Matches(INPUT))
param += INPUT.GetChar();
pToken->params.push_back(param);
}
return pToken;
}
// DocumentStartToken
template <> DocumentStartToken *Scanner::ScanToken(DocumentStartToken *pToken)
{
......@@ -222,6 +260,34 @@ namespace YAML
return pToken;
}
// TagToken
template <> TagToken *Scanner::ScanToken(TagToken *pToken)
{
// insert a potential simple key
if(m_simpleKeyAllowed)
InsertSimpleKey();
m_simpleKeyAllowed = false;
// eat the indicator
INPUT.Eat(1);
// read the handle
while(INPUT.peek() != EOF && INPUT.peek() != Keys::Tag && !Exp::BlankOrBreak.Matches(INPUT))
pToken->handle += INPUT.GetChar();
// is there a suffix?
if(INPUT.peek() == Keys::Tag) {
// eat the indicator
INPUT.Eat(1);
// then read it
while(INPUT.peek() != EOF && !Exp::BlankOrBreak.Matches(INPUT))
pToken->suffix += INPUT.GetChar();
}
return pToken;
}
// PlainScalarToken
template <> PlainScalarToken *Scanner::ScanToken(PlainScalarToken *pToken)
{
......
test.yaml
---
model:
file: data/models/compound.model
textures: data/materials/compound
rooms:
- name: "Room #1"
pos: [0, 0, 0]
size: [1000, 1000, 500]
height: 500
stairtype: none
display: []
pathfinding:
tilesize: 50
size: [24, 24]
map: |
-----------------------
-+++++++++++++++++++++-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+---------------------
-+---------------------
-+---------------------
-+---------------------
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+++++++++++++++++++++-
-----------------------
- name: Doorway
pos: [1000, 400, 0]
size: [50, 200, 500]
height: 500
stairtype: none
display: []
pathfinding:
tilesize: 50
size: [5, 9]
map: |
-----
-+++-
-----
-----
-----
-----
-----
-+++-
-----
- name: "Room #2"
pos: [1050, 0, 0]
size: [1000, 1000, 500]
height: 500
stairtype: none
display: []
pathfinding:
tilesize: 50
size: [24, 24]
map: |
-----------------------
-+++++++++++++++++++++-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
---------------------+-
---------------------+-
---------------------+-
---------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+-------------------+-
-+++++++++++++++++++++-
-----------------------
exits:
- room1: "Room #1"
room2: "Room #2"
dir: e
pos: [400, 600]
Time: 2001-11-23 15:01:42 -5
User: ed
Warning:
This is an error message
for the log file
---
Time: 2001-11-23 15:02:31 -5
User: ed
Warning:
A slightly different error
message.
---
Date: 2001-11-23 15:03:17 -5
User: ed
Fatal:
Unknown variable "bar"
Stack:
- file: TopClass.py
line: 23
code: |
x = MoreObject("345\n")
- file: MoreClass.py
line: 58
code: |-
foo = bar
\ No newline at end of file
token.h
#pragma once
#include <ios>
#include <string>
#include <vector>
namespace YAML
{
......@@ -17,6 +19,13 @@ namespace YAML
struct StreamStartToken: public Token {};
struct StreamEndToken: public Token {};
struct DirectiveToken: public Token {
std::string name;
std::vector <std::string> params;
virtual void Write(std::ostream& out) const { out << name; for(unsigned i=0;i<params.size();i++) out << " " << params[i]; }
};
struct DocumentStartToken: public Token {};
struct DocumentEndToken: public Token {};
......@@ -40,6 +49,12 @@ namespace YAML
virtual void Write(std::ostream& out) const { out << (alias ? '*' : '&') << value; }
};
struct TagToken: public Token {
std::string handle, suffix;
virtual void Write(std::ostream& out) const { out << "!" << handle << "!" << suffix; }
};
struct ScalarToken: public Token {
std::string value;
virtual void Write(std::ostream& out) const { out << value; }
......
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