diff options
Diffstat (limited to 'WWW/Library/Implementation/SGML.h')
| -rw-r--r-- | WWW/Library/Implementation/SGML.h | 68 |
1 files changed, 33 insertions, 35 deletions
diff --git a/WWW/Library/Implementation/SGML.h b/WWW/Library/Implementation/SGML.h index 09ff6fe9..b30a8230 100644 --- a/WWW/Library/Implementation/SGML.h +++ b/WWW/Library/Implementation/SGML.h @@ -8,10 +8,10 @@ to functions which are called to implement the actual effect of the text read. When these functions are called, the attribute structures pointed to by the - DTD are valid, and the function is passed a pointer to the curent tag structure, and an + DTD are valid, and the function is passed a pointer to the current tag structure, and an "element stack" which represents the state of nesting within SGML elements. - The following aspects are from Dan Connolly's suggestions: Binary search, Strcutured + The following aspects are from Dan Connolly's suggestions: Binary search, Structured object scheme basically, SGML content enum type. (c) Copyright CERN 1991 - See Copyright.html @@ -49,52 +49,50 @@ typedef struct { /* Could put type info in here */ } attr; -typedef enum _TagClass { +typedef int TagClass; /* textflow */ - Tgc_FONTlike = 0x00001,/* S,STRIKE,I,B,TT,U,BIG,SMALL,STYLE,BLINK;BR,TAB */ - Tgc_EMlike = 0x00002, /* EM,STRONG,DFN,CODE,SAMP,KBD,VAR,CITE,Q,INS,DEL,SPAN,.. */ - Tgc_MATHlike = 0x00004, /* SUB,SUP,MATH,COMMENT */ - Tgc_Alike = 0x00008, /* A */ - Tgc_formula = 0x00010, /* not used until math is supported better... */ +#define Tgc_FONTlike 0x00001 /* S,STRIKE,I,B,TT,U,BIG,SMALL,STYLE,BLINK;BR,TAB */ +#define Tgc_EMlike 0x00002 /* EM,STRONG,DFN,CODE,SAMP,KBD,VAR,CITE,Q,INS,DEL,SPAN,.. */ +#define Tgc_MATHlike 0x00004 /* SUB,SUP,MATH,COMMENT */ +#define Tgc_Alike 0x00008 /* A */ +#define Tgc_formula 0x00010 /* not used until math is supported better... */ /* used for special structures: forms, tables,... */ - Tgc_TRlike = 0x00020,/* TR and similar */ - Tgc_SELECTlike = 0x00040,/* SELECT,INPUT,TEXTAREA(,...) */ +#define Tgc_TRlike 0x00020 /* TR and similar */ +#define Tgc_SELECTlike 0x00040 /* SELECT,INPUT,TEXTAREA(,...) */ /* structure */ - Tgc_FORMlike = 0x00080,/* FORM itself */ - Tgc_Plike = 0x00100, /* P,H1..H6,... structures containing text or +#define Tgc_FORMlike 0x00080 /* FORM itself */ +#define Tgc_Plike 0x00100 /* P,H1..H6,... structures containing text or insertion but not other structures */ - Tgc_DIVlike = 0x00200, /* ADDRESS,FIG,BDO,NOTE,FN,DIV,CENTER;FIG +#define Tgc_DIVlike 0x00200 /* ADDRESS,FIG,BDO,NOTE,FN,DIV,CENTER;FIG structures which can contain other structures */ - Tgc_LIlike = 0x00400, /* LH,LI,DT,DD;TH,TD structure-like, only valid +#define Tgc_LIlike 0x00400 /* LH,LI,DT,DD;TH,TD structure-like, only valid within certain other structures */ - Tgc_ULlike = 0x00800, /* UL,OL,DL,DIR,MENU;TABLE;XMP,LISTING +#define Tgc_ULlike 0x00800 /* UL,OL,DL,DIR,MENU;TABLE;XMP,LISTING special in some way, cannot contain (parsed) text directly */ /* insertions */ - Tgc_BRlike = 0x01000,/* BR,IMG,TAB allowed in any text */ - Tgc_APPLETlike = 0x02000, /* APPLET,OBJECT,EMBED,SCRIPT */ - Tgc_HRlike = 0x04000, /* HR,MARQUEE can contain all kinds of things +#define Tgc_BRlike 0x01000 /* BR,IMG,TAB allowed in any text */ +#define Tgc_APPLETlike 0x02000 /* APPLET,OBJECT,EMBED,SCRIPT */ +#define Tgc_HRlike 0x04000 /* HR,MARQUEE can contain all kinds of things and/or are not allowed (?) in running text */ - Tgc_MAPlike = 0x08000, /* MAP,AREA some specials that never contain +#define Tgc_MAPlike 0x08000 /* MAP,AREA some specials that never contain (directly or indirectly) other things than special insertions */ - Tgc_outer = 0x10000, /* HTML,FRAMESET,FRAME,PLAINTEXT; */ - Tgc_BODYlike = 0x20000, /* BODY,BODYTEXT,NOFRAMES,TEXTFLOW; */ - Tgc_HEADstuff = 0x40000, /* HEAD,BASE,STYLE,TITLE; */ +#define Tgc_outer 0x10000 /* HTML,FRAMESET,FRAME,PLAINTEXT; */ +#define Tgc_BODYlike 0x20000 /* BODY,BODYTEXT,NOFRAMES,TEXTFLOW; */ +#define Tgc_HEADstuff 0x40000 /* HEAD,BASE,STYLE,TITLE; */ /* special relations */ - Tgc_same = 0x80000 -} TagClass; +#define Tgc_same 0x80000 /* Some more properties of tags (or rather, elements) and rules how to deal with them. - kw */ -typedef enum _TagFlags { - Tgf_endO = 0x00001, /* end tag can be Omitted */ - Tgf_startO = 0x00002, /* start tag can be Omitted */ - Tgf_mafse = 0x00004, /* Make Attribute-Free Start-tag End instead +typedef int TagFlags; +#define Tgf_endO 0x00001 /* end tag can be Omitted */ +#define Tgf_startO 0x00002 /* start tag can be Omitted */ +#define Tgf_mafse 0x00004 /* Make Attribute-Free Start-tag End instead (if found invalid) */ - Tgf_strict = 0x00008 /* Ignore contained invalid elements, +#define Tgf_strict 0x00008 /* Ignore contained invalid elements, don't pass them on */ -} TagFlags; /* A tag structure describes an SGML element. ** ----------------------------------------- @@ -105,7 +103,7 @@ typedef enum _TagFlags { ** attributes points to a zero-terminated array ** of attribute names. ** -** litteral determines how the SGML engine parses the charaters +** litteral determines how the SGML engine parses the characters ** within the element. If set, tag openers are ignored ** except for that which opens a matching closing tag. ** @@ -166,11 +164,11 @@ typedef struct _HTSGMLContext *HTSGMLContext; /* Hidden */ Structured Object definition A structured object is something which can reasonably be represented - in SGML. I'll rephrase that. A structured object is am ordered + in SGML. I'll rephrase that. A structured object is an ordered tree-structured arrangement of data which is representable as text. - The SGML parer outputs to a Structured object. A Structured object + The SGML parser outputs to a Structured object. A Structured object can output its contents to another Structured Object. It's a kind of - typed stream. The architecure is largely Dan Conolly's. Elements and + typed stream. The architecture is largely Dan Conolly's. Elements and entities are passed to the sob by number, implying a knowledge of the DTD. Knowledge of the SGML syntax is not here, though. @@ -227,7 +225,7 @@ typedef struct _HTStructuredClass{ /* Equivalents to the following functions possibly could be generalised - into additional HTStructuredClass members. FOr now they don't do + into additional HTStructuredClass members. For now they don't do anything target-specific. - kw */ extern BOOLEAN LYCheckForCSI PARAMS((HTParentAnchor *anchor, char **url)); |