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Token.h
392 lines (333 loc) · 12.8 KB
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Token.h
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#ifndef FSm_Token_h
#define FSm_Token_h
#include "header.h"
static TokenT LeerToken( FILE *stream, char *term ) {
int next_ch;
int state;
int i;
int p;
state = 0;
i = 0;
p = 0;
while ( 0 <= state ){
if ( EOF == (next_ch = getc(stream)) ) {
next_ch = '\0';
}
term[i++] = convert_case[next_ch];
switch ( state ){
case 0 :
switch ( char_class[next_ch] ) {
case WHITE_CH :
i = 0;
break;
case LETTER_CH :
state = 1;
break;
case LFT_PAREN_CH :
case RGT_PAREN_CH :
case LFT_CURLYBRACKET_CH :
case RGT_CURLYBRACKET_CH :
case LFT_SQRBRACKET_CH :
case RGT_SQRBRACKET_CH :
term[i] = '\0';
state = -AGRUPATION_TOKEN;
break;
case AMPERSAND_CH :
state = 4;
break;
case PIPE_CH :
state = 5;
break;
case CARET_CH :
state = 6;
break;
case EOS_CH :
state = -7;
break;
case DIGIT_CH :
state = 25;
break;
case OTHER_CH :
term[i] = '\0';
state = -8;
break;
case ADDITION_CH :
state = 9;
break;
case HYPHENMINUS_CH :
state = 10;
break;
case STAR_CH :
state = 11;
break;
case SLASH_CH :
state = 12;
break;
case GT_CH :
state = 13;
break;
case LT_CH :
state = 14;
break;
case EQ_CH :
state = 15;
break;
case PERCENTAGE_CH :
state = 16;
break;
case COMMA_CH :
term[i] = '\0';
state = -17;
break;
case SEMICOLON_CH :
term[i] = '\0';
state = -18;
break;
case COLON_CH :
term[i] = '\0';
state = -20;
break;
case TILDE_CH :
state = -19;
break;
case EXCLAMATION_CH :
state = 21;
break;
case NUMBERSIGN_CH :
state = 22;
break;
case POINT_CH :
state = 23;
break;
case QUOTATION_CH :
state = 24;
break;
case QUESTION_CH :
state = -27;
break;
default :
state =-8;
break;
}
break;
case 1 :
if ( (DIGIT_CH != char_class[next_ch])
&& (LETTER_CH != char_class[next_ch]) ) {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -1;
}
break;
case 4:
if (AMPERSAND_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -LOGIC_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -LOGIC_TOKEN;
}
break;
case 5:
if (PIPE_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -LOGIC_TOKEN;
} else if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -ASSIGMENT_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -LOGIC_TOKEN;
}
break;
case 6:
if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -ASSIGMENT_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -LOGIC_TOKEN;
}
break;
case 9:
if (ADDITION_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -9;
} else if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -13;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -9;
}
break;
case 10:
if (HYPHENMINUS_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -9;
} else if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -ASIGNATION_TOKEN;
} else if (GT_CH == char_class[next_ch]) {
term[i] = '\0';
state = -POINTER_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -9;
}
break;
case 11:
term[i] = '\0';
state = 29;
break;
case 12:
if (STAR_CH == char_class[next_ch] ) {
while (1) {
if ( '*' == (next_ch = getc(stream)) && '/' == (next_ch =getc(stream)) ){
term[i++] = convert_case['*'];
term[i++] = convert_case['/'];
break;
}
term[i++] = convert_case[next_ch];
term[i] = '\0';
}
term[i] = '\0';
state = -COMENT_TOKEN;
} else if (SLASH_CH == char_class[next_ch] ) {
while (1) {
if ( '\n' == (next_ch = getc(stream)) ){
break;
}
term[i++] = convert_case[next_ch];
}
term[i] = '\0';
state = -COMENT_TOKEN;
} else if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -13;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -12;
}
break;
case 13:
if (GT_CH == char_class[next_ch] ) {
term[i] = '\0';
state = 100;
} else if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -EQ_TESTING_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -LOGIC_TOKEN;
}
break;
case 14:
if (LT_CH == char_class[next_ch] ) {
term[i] = '\0';
state = 100;
} else if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -EQ_TESTING_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -LOGIC_TOKEN;
}
break;
case 15:
if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -LOGIC_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -ASSIGMENT_TOKEN;
}
break;
// BITWISE
case 100:
if (EQ_CH == char_class[next_ch] ) {
ungetc( next_ch, stream );
term[i] = '\0';
state = -BITWISE_LOGIC_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -BITWISE_SHIFT_TOKEN;
}
break;
case 16:
if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -ASSIGMENT_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -ARITMETIC_TOKEN;
}
break;
case 21:
if (EQ_CH == char_class[next_ch] ) {
term[i] = '\0';
state = -LOGIC_TOKEN;
} else {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -ASSIGMENT_TOKEN;
}
break;
case 23:
if ( (DIGIT_CH != char_class[next_ch]) ){
ungetc( next_ch, stream );
term[i-1] = '\0';
state = 26;
}
if( (POINT_CH == char_class[next_ch])){
state = 25;
}
break;
case 24:
while (QUOTATION_CH != char_class[(next_ch = getc(stream))]) {
term[i++] = convert_case[next_ch];
}
term[i++] = convert_case[next_ch];
state = -STRING_TOKEN;
term[i] = '\0';
break;
case 25:
if ( (DIGIT_CH != char_class[next_ch]) && ((POINT_CH != char_class[next_ch]))) {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -25;
}
if ((POINT_CH == char_class[next_ch])) {
state = 26;
}
break;
case 26:
if ( (DIGIT_CH != char_class[next_ch]) ) {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -26;
}
break;
case 29:
if ( (DIGIT_CH != char_class[next_ch]) && (LETTER_CH != char_class[next_ch]) ) {
ungetc( next_ch, stream );
term[i-1] = '\0';
state = -COMENT_TOKEN;
}
break;
default : state = -8; break;
}
}
return( (TokenT) (-state) );
}
#endif