LowParser Class Reference

#include <parser.h>

Collaboration diagram for LowParser:

Public Types
enum	Token {   UNKNOWN, WORD, COMMA = ',', COLON = ':',   SEMICOLON = ';', NUMBER, ENDOFFILE, LASTTOKEN }

Public Member Functions
	LowParser (HighParser &hp)
	~LowParser (void)
Token	GetToken (InputStream &In)
doublereal	dGetReal (void) const
integer	iGetInt (void) const
char *	sGetWord (void)

Private Member Functions
void	PackWords (InputStream &In)

Private Attributes
HighParser &	HP
enum Token	CurrToken
char *	sCurrWordBuf
unsigned	iBufSize
doublereal	dCurrNumber

Friends
class	HighParser

Detailed Description

Definition at line 144 of file parser.h.

Member Enumeration Documentation

enum LowParser::Token

Enumerator
UNKNOWN
WORD
COMMA
COLON
SEMICOLON
NUMBER
ENDOFFILE
LASTTOKEN

Definition at line 148 of file parser.h.

                   {
                UNKNOWN,

                WORD,
                COMMA = ',',
                COLON = ':',
                SEMICOLON = ';',
                NUMBER,
                ENDOFFILE,

                LASTTOKEN
        };

Constructor & Destructor Documentation

LowParser::LowParser

(

HighParser &

hp

)

Definition at line 132 of file parser.cc.

References iBufSize, SAFENEWARR, and sCurrWordBuf.

: HP(hp), sCurrWordBuf(0), iBufSize(iDefaultBufSize)
{
        SAFENEWARR(sCurrWordBuf, char, iBufSize);
}

LowParser::~LowParser

(

void

)

Definition at line 138 of file parser.cc.

References SAFEDELETEARR, and sCurrWordBuf.

{
        if (sCurrWordBuf) {
                SAFEDELETEARR(sCurrWordBuf);
        }
}

Member Function Documentation

doublereal LowParser::dGetReal

(

void

)

const

Definition at line 230 of file parser.cc.

References dCurrNumber.

{
        return dCurrNumber;
}

LowParser::Token LowParser::GetToken

(

InputStream &

In

)

Definition at line 189 of file parser.cc.

References COLON, COMMA, CurrToken, dCurrNumber, ENDOFFILE, HP, NUMBER, PackWords(), InputStream::putback(), SEMICOLON, skip_remarks(), UNKNOWN, and WORD.

Referenced by HighParser::FirstToken(), HighParser::GetDescription(), HighParser::GetWord(), and HighParser::NextToken().

{
        /* toglie gli spazi iniziali e tutti i commenti */
        char cIn;
        if (skip_remarks(HP, In, cIn)) {
                return CurrToken = LowParser::ENDOFFILE;
        }

        if (isalpha(cIn) || cIn == '_') {
                PackWords(In.putback(cIn));
                return CurrToken = LowParser::WORD;
        }

        switch (cIn) {
        case ',':
                return CurrToken = LowParser::COMMA;

        case ':':
                return CurrToken = LowParser::COLON;

        case ';':
                return CurrToken = LowParser::SEMICOLON;

        case '.':
        case '-':
        case '+':
is_digit:;
                In.putback(cIn) >> dCurrNumber;
                return CurrToken = LowParser::NUMBER;

        default:
                if (isdigit(cIn)) {
                        goto is_digit;
                }
                In.putback(cIn);
                return CurrToken = LowParser::UNKNOWN;
        }
}

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integer LowParser::iGetInt

(

void

)

const

Definition at line 237 of file parser.cc.

References dCurrNumber.

{
        return integer(dCurrNumber);
}

void LowParser::PackWords ( InputStream &  In )

private

Definition at line 146 of file parser.cc.

References COLON, COMMA, InputStream::eof(), InputStream::get(), iBufSize, MBDYN_EXCEPT_ARGS, InputStream::putback(), SAFEDELETEARR, SAFENEWARR, sCurrWordBuf, and SEMICOLON.

Referenced by GetToken().

{
        unsigned iCur = 0;
        char cIn;

        /* note: no remarks allowed inside words */
        for (cIn = In.get(); !In.eof(); cIn = In.get()) {
                switch (cIn) {
                case COLON:
                case COMMA:
                case SEMICOLON:
                        goto end_of_word;

                default:
                        if (!isspace(cIn)) {
                                sCurrWordBuf[iCur] = cIn;
                                iCur++;
                                 if (iCur == iBufSize - 1) {
                                         char *s = NULL;
                                         unsigned i = 2*iBufSize;

                                         /* FIXME: no limit on max size? */

                                         SAFENEWARR(s, char, i);
                                         memcpy(s, sCurrWordBuf, iBufSize);
                                         SAFEDELETEARR(sCurrWordBuf);
                                         sCurrWordBuf = s;
                                         iBufSize = i;
                                 }
                        }
                }
        }

        throw EndOfFile(MBDYN_EXCEPT_ARGS);

end_of_word:;

        sCurrWordBuf[iCur] = '\0';
        In.putback(cIn);
}

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char * LowParser::sGetWord

(

void

)

Definition at line 244 of file parser.cc.

References sCurrWordBuf.

Referenced by HighParser::GetDescription(), and HighParser::GetWord().

{
        return sCurrWordBuf;
}

Friends And Related Function Documentation

friend class HighParser

friend

Definition at line 145 of file parser.h.

Member Data Documentation

enum Token LowParser::CurrToken

private

Definition at line 163 of file parser.h.

Referenced by GetToken().

doublereal LowParser::dCurrNumber

private

Definition at line 166 of file parser.h.

Referenced by dGetReal(), GetToken(), and iGetInt().

HighParser& LowParser::HP

private

Definition at line 162 of file parser.h.

Referenced by GetToken().

unsigned LowParser::iBufSize

private

Definition at line 165 of file parser.h.

Referenced by LowParser(), and PackWords().

char* LowParser::sCurrWordBuf

private

Definition at line 164 of file parser.h.

Referenced by LowParser(), PackWords(), sGetWord(), and ~LowParser().

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The documentation for this class was generated from the following files:

• parser.h
• parser.cc