windows-nt/Source/XPSP1/NT/net/atm/arp/kdext/parse.h

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2020-09-26 03:20:57 -05:00
typedef enum // tokens: * . ? [ ] / help dt dg L number <identifier>
{
tokSTAR, // *
tokDOT, // .
tokQUESTION, // ?
tokLBRAC, // [
tokRBRAC, // ]
tokSLASH, // /
tokKEYWORD, // alnum strings which match one of the known keys.
tokNUMBER, // 0xcbde 129
tokIDENTIFIER // non-keyword and non-number alnum
} eTOKTYPE;
typedef struct
{
eTOKTYPE eTok;
UINT uID; // Tok-specific ID:
// IDENTIFIER: a unique number across all identifiers.
// NUMBER: the number
// KEYWORD: eKEYWORD
// Other tokens: uID is unused.
char *szStr; // String containg original chars that made up this token.
// Note: a string of pure hex digits which is followed
// by a non-alnum char is assumed to be a number --
// later if it turns out to be more likely that it is
// an identifier, it is converted to an identifier.
// Same deal with a keyword -- if it turns out based
// on context to be most likely an identifier or part
// of an identifier, it will be converted to an
// identifier.
} TOKEN;
typedef enum
{
keywordNULL, // Invalid keyword, use for sentinels.
keywordHELP, // help
keywordDUMP_TYPE, // dt
keywordDUMP_GLOBALS, // dg
keywordL // L
} eKEYWORD;
//
// Following is not used currently...
//
typedef enum
{
phraseCMD,
phraseIDENTIFIER, // with optional wildcards
phraseINDEX, // [2], [*], [1-3], etc.
phraseDOT, // .
phraseNUMBER, // 0x8908 abcd
phraseOBJ_COUNT, // L 2
phraseFLAG // /xyz
} ePHRASE;
typedef enum
{
cmdDUMP_TYPE,
cmdDUMP_GLOBALS,
cmdHELP
}ePRIMARY_COMMAND;
struct _DBGCOMMAND;
typedef void (*PFN_SPECIAL_COMMAND_HANDLER)(struct _DBGCOMMAND *pCmd);
typedef struct _DBGCOMMAND
{
NAMESPACE *pNameSpace; // Name space applicable for this command.
ePRIMARY_COMMAND ePrimaryCmd; // DumpGlobals, DumpType, help
UINT uFlags; // One or more fCMDFLAG_*
TOKEN *ptokObject; // eg <type>
TOKEN *ptokSubObject; // eg <field>
UINT uVectorIndexStart; // if[0]
UINT uVectorIndexEnd; // if[0]
UINT uObjectAddress; // <address>
UINT uObjectCount; // L 10
void *pvContext; // private context.
//PFN_SPECIAL_COMMAND_HANDLER pfnSpecialHandler;
} DBGCOMMAND;
#define fCMDFLAG_HAS_VECTOR_INDEX (0x1<<0)
#define fCMDFLAG_HAS_SUBOBJECT (0x1<<1)
#define fCMDFLAG_HAS_OBJECT_ADDRESS (0x1<<2)
#define fCMDFLAG_HAS_OBJECT_COUNT (0x1<<3)
#define fCMDFLAG_OBJECT_STAR_PREFIX (0x1<<4)
#define fCMDFLAG_OBJECT_STAR_SUFFIX (0x1<<5)
#define fCMDFLAG_SUBOBJECT_STAR_PREFIX (0x1<<6)
#define fCMDFLAG_SUBOBJECT_STAR_SUFFIX (0x1<<7)
#define CMD_SET_FLAG(_pCmd, _f) ((_pCmd)->uFlags |= (_f))
#define CMD_CLEAR_FLAG(_pCmd, _f) ((_pCmd)->uFlags &= ~(_f))
#define CMD_IS_FLAG_SET(_pCmd, _f) ((_pCmd)->uFlags & (_f))
DBGCOMMAND *
Parse(
IN const char *szInput,
IN NAMESPACE *
);
void
FreeCommand(
DBGCOMMAND *pCommand
);
void
DumpCommand(
DBGCOMMAND *pCommand
);
#if 0
//!aac dt <type> . <field> <address> L <count> <flags>
//!aac dt <type> [index] . <field> L <count> <flags>
//!aac dg <name> . <field>
//
//!aac dt if[*].*handle* 0x324890 L 5
0. Break up sentance into tokens:
keywords: * . L dg dt ? help [ ] /
identifier: contiguous non-keyword alnum
number: interpreted as hex with optional 0x.
1st pass: combine "[*]", "*word*", "/xyz" into single entities
1. Parse primary command: literal text
2. Parse primary object: [*]literal_text[*]
3. Parse index "[...]"
4. Parse field "."
5. Parse address (hex number)
6. Parse object count L <count>
#endif // 0
void
DoCommand(DBGCOMMAND *pCmd, PFN_SPECIAL_COMMAND_HANDLER pfnHandler);
void
DoDumpType(DBGCOMMAND *pCmd);
void
DoDumpGlobals(DBGCOMMAND *pCmd);
void
DoHelp(DBGCOMMAND *pCmd);