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Filename : 03_posix.c
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/* Generated by re2c */
#line 1 "c/submatch/03_posix.re"
// re2c $INPUT -o $OUTPUT
#include <assert.h>
#include <stdint.h>

static uint32_t num(const char *s, const char *e)
{
    uint32_t n = 0;
    for (; s < e; ++s) n = n * 10 + (*s - '0');
    return n;
}

#line 15 "c/submatch/03_posix.c"
#define YYMAXNMATCH 5
#line 12 "c/submatch/03_posix.re"

static const uint64_t ERROR = ~0lu;

static uint64_t lex(const char *YYCURSOR)
{
    const char *YYMARKER;
    const char *yypmatch[YYMAXNMATCH * 2];
    uint32_t yynmatch;
    
#line 27 "c/submatch/03_posix.c"
const char *yyt1;
const char *yyt2;
const char *yyt3;
const char *yyt4;
#line 20 "c/submatch/03_posix.re"


    
#line 36 "c/submatch/03_posix.c"
{
	char yych;
	yych = *YYCURSOR;
	switch (yych) {
	case '0':
		yyt1 = YYCURSOR;
		goto yy4;
	case '1':
		yyt1 = YYCURSOR;
		goto yy5;
	case '2':
		yyt1 = YYCURSOR;
		goto yy6;
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':
		yyt1 = YYCURSOR;
		goto yy7;
	default:	goto yy2;
	}
yy2:
	++YYCURSOR;
yy3:
#line 38 "c/submatch/03_posix.re"
	{ return ERROR; }
#line 66 "c/submatch/03_posix.c"
yy4:
	yych = *(YYMARKER = ++YYCURSOR);
	switch (yych) {
	case '.':	goto yy8;
	default:	goto yy3;
	}
yy5:
	yych = *(YYMARKER = ++YYCURSOR);
	switch (yych) {
	case '.':	goto yy8;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy10;
	default:	goto yy3;
	}
yy6:
	yych = *(YYMARKER = ++YYCURSOR);
	switch (yych) {
	case '.':	goto yy8;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':	goto yy10;
	case '5':	goto yy11;
	case '6':
	case '7':
	case '8':
	case '9':	goto yy12;
	default:	goto yy3;
	}
yy7:
	yych = *(YYMARKER = ++YYCURSOR);
	switch (yych) {
	case '.':	goto yy8;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy12;
	default:	goto yy3;
	}
yy8:
	yych = *++YYCURSOR;
	switch (yych) {
	case '0':
		yyt2 = YYCURSOR;
		goto yy13;
	case '1':
		yyt2 = YYCURSOR;
		goto yy14;
	case '2':
		yyt2 = YYCURSOR;
		goto yy15;
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':
		yyt2 = YYCURSOR;
		goto yy16;
	default:	goto yy9;
	}
yy9:
	YYCURSOR = YYMARKER;
	goto yy3;
yy10:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy8;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy12;
	default:	goto yy9;
	}
yy11:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy8;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':	goto yy12;
	default:	goto yy9;
	}
yy12:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy8;
	default:	goto yy9;
	}
yy13:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy17;
	default:	goto yy9;
	}
yy14:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy17;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy16;
	default:	goto yy9;
	}
yy15:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy17;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':	goto yy16;
	case '5':	goto yy18;
	case '6':
	case '7':
	case '8':
	case '9':	goto yy13;
	default:	goto yy9;
	}
yy16:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy17;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy13;
	default:	goto yy9;
	}
yy17:
	yych = *++YYCURSOR;
	switch (yych) {
	case '0':
		yyt3 = YYCURSOR;
		goto yy19;
	case '1':
		yyt3 = YYCURSOR;
		goto yy20;
	case '2':
		yyt3 = YYCURSOR;
		goto yy21;
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':
		yyt3 = YYCURSOR;
		goto yy22;
	default:	goto yy9;
	}
yy18:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy17;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':	goto yy13;
	default:	goto yy9;
	}
yy19:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy23;
	default:	goto yy9;
	}
yy20:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy23;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy22;
	default:	goto yy9;
	}
yy21:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy23;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':	goto yy22;
	case '5':	goto yy24;
	case '6':
	case '7':
	case '8':
	case '9':	goto yy19;
	default:	goto yy9;
	}
yy22:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy23;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy19;
	default:	goto yy9;
	}
yy23:
	yych = *++YYCURSOR;
	switch (yych) {
	case '0':
		yyt4 = YYCURSOR;
		goto yy25;
	case '1':
		yyt4 = YYCURSOR;
		goto yy26;
	case '2':
		yyt4 = YYCURSOR;
		goto yy27;
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':
		yyt4 = YYCURSOR;
		goto yy28;
	default:	goto yy9;
	}
yy24:
	yych = *++YYCURSOR;
	switch (yych) {
	case '.':	goto yy23;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':	goto yy19;
	default:	goto yy9;
	}
yy25:
	yych = *++YYCURSOR;
	if (yych <= 0x00) goto yy29;
	goto yy9;
yy26:
	yych = *++YYCURSOR;
	switch (yych) {
	case 0x00:	goto yy29;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy28;
	default:	goto yy9;
	}
yy27:
	yych = *++YYCURSOR;
	switch (yych) {
	case 0x00:	goto yy29;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':	goto yy28;
	case '5':	goto yy31;
	case '6':
	case '7':
	case '8':
	case '9':	goto yy25;
	default:	goto yy9;
	}
yy28:
	yych = *++YYCURSOR;
	switch (yych) {
	case 0x00:	goto yy29;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':	goto yy25;
	default:	goto yy9;
	}
yy29:
	++YYCURSOR;
	yynmatch = 5;
	yypmatch[2] = yyt1;
	yypmatch[4] = yyt2;
	yypmatch[6] = yyt3;
	yypmatch[8] = yyt4;
	yypmatch[0] = yyt1;
	yypmatch[1] = YYCURSOR;
	yypmatch[3] = yyt2 - 1;
	yypmatch[5] = yyt3 - 1;
	yypmatch[7] = yyt4 - 1;
	yypmatch[9] = YYCURSOR - 1;
#line 31 "c/submatch/03_posix.re"
	{
        assert(yynmatch == 5);
        return num(yypmatch[8], yypmatch[9])
            + (num(yypmatch[6], yypmatch[7]) << 8)
            + (num(yypmatch[4], yypmatch[5]) << 16)
            + (num(yypmatch[2], yypmatch[3]) << 24);
    }
#line 432 "c/submatch/03_posix.c"
yy31:
	yych = *++YYCURSOR;
	switch (yych) {
	case 0x00:	goto yy29;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':	goto yy25;
	default:	goto yy9;
	}
}
#line 39 "c/submatch/03_posix.re"

}

int main()
{
    assert(lex("1.2.3.4") == 0x01020304);
    assert(lex("127.0.0.1") == 0x7f000001);
    assert(lex("255.255.255.255") == 0xffffffff);
    assert(lex("1.2.3.") == ERROR);
    assert(lex("1.2.3.256") == ERROR);
    return 0;
}