// ScanNextToken
// . The main scanning function; here we branch out and
// scan whatever the next token should be.
void Scanner::ScanNextToken()
{
if(m_endedStream)
return;
if(!m_startedStream)
return StartStream();
// get rid of whitespace, etc. (in between tokens it should be irrelevent)
ScanToNextToken();
// check the latest simple key
VerifySimpleKey();
// maybe need to end some blocks
PopIndentTo(INPUT.column);
// *****
// And now branch based on the next few characters!
// *****
// end of stream
if(INPUT.peek() == EOF)
return EndStream();
if(INPUT.column == 0 && INPUT.peek() == Keys::Directive)
return ScanDirective();
// document token
if(INPUT.column == 0 && Exp::DocStart.Matches(INPUT))
return ScanDocStart();
if(INPUT.column == 0 && Exp::DocEnd.Matches(INPUT))
return ScanDocEnd();
// flow start/end/entry
if(INPUT.peek() == Keys::FlowSeqStart || INPUT.peek() == Keys::FlowMapStart)
return ScanFlowStart();
if(INPUT.peek() == Keys::FlowSeqEnd || INPUT.peek() == Keys::FlowMapEnd)
return ScanFlowEnd();
if(INPUT.peek() == Keys::FlowEntry)
return ScanFlowEntry();
// block/map stuff
if(Exp::BlockEntry.Matches(INPUT))
return ScanBlockEntry();
if((m_flowLevel == 0 ? Exp::Key : Exp::KeyInFlow).Matches(INPUT))
return ScanKey();
if((m_flowLevel == 0 ? Exp::Value : Exp::ValueInFlow).Matches(INPUT))
return ScanValue();
// alias/anchor
if(INPUT.peek() == Keys::Alias || INPUT.peek() == Keys::Anchor)
return ScanAnchorOrAlias();
// tag
if(INPUT.peek() == Keys::Tag)
return ScanTag();
// special scalars
if(m_flowLevel == 0 && (INPUT.peek() == Keys::LiteralScalar || INPUT.peek() == Keys::FoldedScalar))
return ScanBlockScalar();
if(INPUT.peek() == '\'' || INPUT.peek() == '\"')
return ScanQuotedScalar();
// plain scalars
if((m_flowLevel == 0 ? Exp::PlainScalar : Exp::PlainScalarInFlow).Matches(INPUT))
return ScanPlainScalar();
// don't know what it is!
throw ParserException(INPUT.line, INPUT.column, ErrorMsg::UNKNOWN_TOKEN);
}
void Scanner::ScanNextToken() {
if (m_endedStream) {
return;
}
if (!m_startedStream) {
return StartStream();
}
// get rid of whitespace, etc. (in between tokens it should be irrelevent)
ScanToNextToken();
// maybe need to end some blocks
PopIndentToHere();
// *****
// And now branch based on the next few characters!
// *****
// end of stream
if (!INPUT) {
return EndStream();
}
if (INPUT.column() == 0 && INPUT.peek() == Keys::Directive) {
return ScanDirective();
}
// document token
if (INPUT.column() == 0 && Exp::DocStart().Matches(INPUT)) {
return ScanDocStart();
}
if (INPUT.column() == 0 && Exp::DocEnd().Matches(INPUT)) {
return ScanDocEnd();
}
// flow start/end/entry
if (INPUT.peek() == Keys::FlowSeqStart ||
INPUT.peek() == Keys::FlowMapStart) {
return ScanFlowStart();
}
if (INPUT.peek() == Keys::FlowSeqEnd || INPUT.peek() == Keys::FlowMapEnd) {
return ScanFlowEnd();
}
if (INPUT.peek() == Keys::FlowEntry) {
return ScanFlowEntry();
}
// block/map stuff
if (Exp::BlockEntry().Matches(INPUT)) {
return ScanBlockEntry();
}
if ((InBlockContext() ? Exp::Key() : Exp::KeyInFlow()).Matches(INPUT)) {
return ScanKey();
}
if (GetValueRegex().Matches(INPUT)) {
return ScanValue();
}
// alias/anchor
if (INPUT.peek() == Keys::Alias || INPUT.peek() == Keys::Anchor) {
return ScanAnchorOrAlias();
}
// tag
if (INPUT.peek() == Keys::Tag) {
return ScanTag();
}
// special scalars
if (InBlockContext() && (INPUT.peek() == Keys::LiteralScalar ||
INPUT.peek() == Keys::FoldedScalar)) {
return ScanBlockScalar();
}
if (INPUT.peek() == '\'' || INPUT.peek() == '\"') {
return ScanQuotedScalar();
}
// plain scalars
if ((InBlockContext() ? Exp::PlainScalar() : Exp::PlainScalarInFlow())
.Matches(INPUT)) {
return ScanPlainScalar();
}
// don't know what it is!
throw ParserException(INPUT.mark(), ErrorMsg::UNKNOWN_TOKEN);
}
void CPDF::Close()
{
Page *P;
Font *F;
// write Courier font
Obj *CourierObj = NewObject();
fprintf(PDFFile, "%d 0 obj\n<< /Type /Font /Subtype /Type1 /BaseFont /Courier >>\nendobj\n", CourierObj->id);
// write single dot XObject
Obj *Dot = NewObject();
fprintf(PDFFile, "%d 0 obj\n<< /Type /XObject /Subtype /Form /FormType 1 /BBox [-0.5 -0.5 0.5 0.5] /Marix [1 0 0 1 0 0] /Resources << /ProcSet [/PDF] >> /Length 148 >>\nstream\n", Dot->id);
fprintf(PDFFile, "0 0.5 m 0.27553 0.5 0.5 0.27553 0.5 0 c 0.5 -0.27553 0.27553 -0.5 0 -0.5 c -0.27553 -0.5 -0.5 -0.27553 -0.5 0 c -0.5 0.27553 -0.27553 0.5 0 0.5 c f\n");
fprintf(PDFFile, "endstream\nendobj\n");
// write custom fonts
F = FontList;
while(F)
{
int c;
Obj *FontHead = NewObject();
F->id = FontHead->id;
F->Glyphs[32].Begin(F->State);
// 6/72 = 0.083333333333
fprintf(PDFFile, "%d 0 obj\n<< /Type /Font /Subtype /Type3 /FontBBox [0 0 %0.2f 10] /FontMatrix [0.083333333333 0 0 0.083333333333 0 0]", FontHead->id, (float)F->Glyphs[32].GetWidth() / (VIRTUAL_DPI / 72));
fprintf(PDFFile, " /CharProcs %d 0 R /Encoding %d 0 R /FirstChar 0 /LastChar 255 /Widths [", FontHead->id+2, FontHead->id+1);
for(c = 0; c < 256; c++)
{
fprintf(PDFFile, "%0.2f ", (float)F->Glyphs[c].GetWidth() / (VIRTUAL_DPI / 72));
}
fprintf(PDFFile, "] /ToUnicode %d 0 R >>\nendobj\n", FontHead->id+3);
/* encoding */
Obj *T = NewObject();
fprintf(PDFFile, "%d 0 obj\n<< /Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences [0 ", FontHead->id+1);
for(c = 0; c < 256; c++)
{
fprintf(PDFFile, "/%s_%d ", F->Name, c);
}
fprintf(PDFFile, "] >>\nendobj\n");
/* CharProcs */
T = NewObject();
fprintf(PDFFile, "%d 0 obj\n<< ", FontHead->id+2);
for(c = 0; c < 256; c++)
{
fprintf(PDFFile, "/%s_%d %d 0 R ", F->Name, c, FontHead->id+4+c);
}
fprintf(PDFFile, ">>\nendobj\n");
/* ToUnicode (always the same) */
NewStream();
AddText("/CIDInit /ProcSet findresource begin\n");
AddText("12 dict begin\n");
AddText("begincmap\n");
AddText("/CIDSystemInfo\n");
AddText("<< /Registry (Adobe)\n");
AddText("/Ordering (UCS)\n");
AddText("/Supplement 0\n");
AddText(">> def\n");
AddText("/CMapName /Adobe-Identity-UCS def\n");
AddText("/CMapNameType 2 def\n");
AddText("1 begincodespacerange\n");
AddText("<00> <FF>\n");
AddText("endcodespacerange\n");
AddText("2 beginbfrange\n");
for(int base = 0; base < 0x100; base += 0x80)
{
Uint16 First32Targets[32] =
{
0x00e0, 0x00e8, 0x00f9, 0x00f2, // à, è, ù, ò
0x00ec, 0x00ba, 0x00a3, 0x00a1, // ì, º, £, ¡
0x00bf, 0x00d1, 0x00f1, 0x00a4, // ¿, Ñ, ñ, ¤
0xfb05, 0x00c5, 0x00e5, 0x00e7, // ſt, Å, å, ç - ligature might be wrong
0x00a7, 0x00df, 0x00c6, 0x00e6, // §, ß, Æ, æ
0x00d8, 0x00f8, 0x00a8, 0x00c4, // Ø, ø, ¨, Ä
0x00d6, 0x00dc, 0x00e4, 0x00f6, // Ö, Ü, ä, ö
0x00df, 0x00c9, 0x00e9, 0xffe5 // ü, É, é, ￥
};
char Buffer[32];
/* table based mapping, for Latin supplement characters + the occasional oddity */
sprintf(Buffer, "<%02x> <%02x> [ ", base, base+0x1f);
AddText(Buffer);
for(int c = 0; c < 32; c++)
{
sprintf(Buffer, "<%04x> ", First32Targets[c]);
AddText(Buffer);
}
AddText("]\n");
/* ASCII area */
sprintf(Buffer, "<%02x> <%02x> <0020>\n", base+0x20, base+0x7e);
AddText(Buffer);
/* zero with a slash (should have a combining long solidus overlay, can't seem to make that work) */
sprintf(Buffer, "<%02x> <%02x> <0030>\n", base+0x7f, base+0x7f);
AddText(Buffer);
}
AddText("endbfrange\n");
AddText("endcmap\n");
AddText("CMapName currentdict /CMap defineresource pop\n");
AddText("end\n");
AddText("end\n");
EndStream();
/* actual glyphs */
for(c = 0; c < 256; c++)
{
Uint32 *M;
F->Glyphs[c].Begin();
float x = 0;
NewStream();
char TBuf[128];
sprintf(TBuf, "%0.2f 9 0 0 %0.2f 9 d1 ", (float)F->Glyphs[c].GetWidth() / (VIRTUAL_DPI / 72), (float)F->Glyphs[c].GetWidth() / (VIRTUAL_DPI / 72));
AddText(TBuf);
while(M = F->Glyphs[c].GetLine())
{
float y = 9;
Uint32 RC = *M;
while(RC&((GLYPHLINE_START << 1)-1))
{
if(RC&GLYPHLINE_START)
AddPoint( x, y);
y -= 0.5f;
RC <<= 1;
}
x += (float)F->Glyphs[c].GetXAdvance() / (VIRTUAL_DPI / 72);
}
EndStream();
}
F = F->Next;
}
/*
while(mask&((GLYPHLINE_START << 1)-1))
{
if(mask&GLYPHLINE_START) PutDot(PosX, PosY);
PosY += 5;
mask <<= 1;
}
*/
/* Obj *FontObj = NewObject();
fprintf(PDFFile, "%d 0 obj\n<< /Type /Font /Subtype /Type3 /FontBBox [0 0 750 750] /FontMatrix [0.001 0 0 0.001 0 0]", FontObj->id);
fprintf(PDFFile, " /CharProcs %d 0 R /Encoding %d 0 R /FirstChar 97 /LastChar 98 /Widths [1000 1000] >>\nendobj\n", FontObj->id+2, FontObj->id+1);
Obj *T = NewObject();
fprintf(PDFFile, "%d 0 obj\n<< /Type /Encoding /Differences [97 /square /triangle] >>\nendobj\n", FontObj->id+1);
T = NewObject();
fprintf(PDFFile, "%d 0 obj\n<< /square %d 0 R /triangle %d 0 R >>\nendobj\n", FontObj->id+2, FontObj->id+3, FontObj->id+4);
NewStream();
AddText("1000 0 0 0 750 750 d1 0 0 750 750 re f ");
EndStream();
NewStream();
AddText("1000 0 0 0 750 750 d1 0 0 m 375 750 l 750 0 l f ");
EndStream();*/
// fprintf(PDFFile, "%d 0 obj\n<< /square %d 0 R /triangle %d 0 R >>\nendobj\n", FontObj->id+2, FontObj->id+3, FontObj->id+4);
// write actual pages
P = PageList;
int ObjectsIn = NumObjects;
while(P)
{
P->FileOffset = ftell(PDFFile);
P->id = NumObjects+1; NumObjects++;
fprintf(PDFFile, "%d 0 obj\n\t", P->id); // page entry (just points to the outlines)
fputs("<< /Type /Page\n\t\t", PDFFile);
fprintf(PDFFile, "/Parent %d 0 R\n\t\t", ObjectsIn+NumPages+1);
fprintf(PDFFile, "/MediaBox [0 0 %d %d]\n\t\t", P->Width, P->Height);
fputs("/Contents ", PDFFile);
Obj *O = *(P->FirstObj);
if(P->Next)
{
while(O != *P->Next->FirstObj)
{
fprintf(PDFFile, "%d 0 R ", O->id);
O = O->Next;
}
}
else
{
while(O != CourierObj)
{
fprintf(PDFFile, "%d 0 R ", O->id);
O = O->Next;
}
}
fputs(">>\nendobj\n", PDFFile);
P = P->Next;
}
// write pages entry
long PagesPos = ftell(PDFFile);
fprintf(PDFFile, "%d 0 obj\n\t", NumObjects+1); NumObjects++; // pages entry (there is one)
fputs("<< /Type /Pages\n\t\t", PDFFile);
fprintf(PDFFile, "/Resources << /XObject << /Dot %d 0 R >> /Font << /Courier %d 0 R ", Dot->id, CourierObj->id);
F = FontList;
while(F)
{
fprintf(PDFFile, "/%s %d 0 R ", F->Name, F->id);
F = F->Next;
}
fprintf(PDFFile, " >> >>\n\t\t");
fputs("/Kids [", PDFFile);
P = PageList;
while(P)
{
fprintf(PDFFile, "%d 0 R ", P->id);
P = P->Next;
}
fputs("]\n\t\t", PDFFile);
fprintf(PDFFile, "/Count %d\n\t", NumPages);
fputs(">>\nendobj\n", PDFFile);
// write catalogue
long CataloguePos = ftell(PDFFile);
fprintf(PDFFile, "%d 0 obj\n\t", NumObjects+1); NumObjects++;
fprintf(PDFFile, "<< /Type /Catalog /Pages %d 0 R >>\nendobj\n", NumObjects-1);
// write xref table
long xrefpos = ftell(PDFFile);
fprintf(PDFFile, "xref\n0 %d\n", NumObjects+1);
fprintf(PDFFile, "0000000000 65535 f \n");
Obj *O = ObjList;
while(O)
{
fprintf(PDFFile, "%010d 00000 n \n", (int)O->FileOffset);
O = O->Next;
}
P = PageList;
while(P)
{
fprintf(PDFFile, "%010d 00000 n \n", (int)P->FileOffset);
P = P->Next;
}
fprintf(PDFFile, "%010d 00000 n \n", (int)PagesPos);
fprintf(PDFFile, "%010d 00000 n \n", (int)CataloguePos);
fprintf(PDFFile, "trailer\n\t<</Size %d\n\t\t/Root %d 0 R\n\t>>\n", NumObjects+1, NumObjects);
fprintf(PDFFile, "startxref\n%d\n", (int)xrefpos);
fputs("%%EOF", PDFFile);
fclose(PDFFile);
// free memory
while(PageList)
{
Page *N = PageList->Next;
delete PageList;
PageList = N;
}
while(ObjList)
{
Obj *N = ObjList->Next;
delete ObjList;
ObjList = N;
}
while(FontList)
{
Font *N = FontList->Next;
delete FontList;
FontList = N;
}
}
