1#@!#!123s

��JFIF�� 1#@!#!123s
: / usr / share / doc / re2c / examples / c / reuse /
Filename : reuse.c
back
/* Generated by re2c */
#line 1 "c/reuse/reuse.re"
// re2c $INPUT -o $OUTPUT --input-encoding utf8
#include <assert.h>
#include <stdint.h>

// This example supports multiple input encodings: UTF-8 and UTF-32.
// Both lexers are generated from the same rules block, and the use
// blocks add only encoding-specific configurations.
#line 13 "c/reuse/reuse.re"


static int lex_utf8(const uint8_t *s) {
    const uint8_t *YYCURSOR = s, *YYMARKER;
    
#line 17 "c/reuse/reuse.c"
{
	uint8_t yych;
	yych = *YYCURSOR;
	switch (yych) {
		case 0xE2: goto yy3;
		default: goto yy1;
	}
yy1:
	++YYCURSOR;
yy2:
#line 12 "c/reuse/reuse.re"
	{ return 1; }
#line 30 "c/reuse/reuse.c"
yy3:
	yych = *(YYMARKER = ++YYCURSOR);
	switch (yych) {
		case 0x88: goto yy4;
		default: goto yy2;
	}
yy4:
	yych = *++YYCURSOR;
	switch (yych) {
		case 0x80: goto yy6;
		default: goto yy5;
	}
yy5:
	YYCURSOR = YYMARKER;
	goto yy2;
yy6:
	yych = *++YYCURSOR;
	switch (yych) {
		case 'x': goto yy7;
		default: goto yy5;
	}
yy7:
	yych = *++YYCURSOR;
	switch (yych) {
		case ' ': goto yy8;
		default: goto yy5;
	}
yy8:
	yych = *++YYCURSOR;
	switch (yych) {
		case 0xE2: goto yy9;
		default: goto yy5;
	}
yy9:
	yych = *++YYCURSOR;
	switch (yych) {
		case 0x88: goto yy10;
		default: goto yy5;
	}
yy10:
	yych = *++YYCURSOR;
	switch (yych) {
		case 0x83: goto yy11;
		default: goto yy5;
	}
yy11:
	yych = *++YYCURSOR;
	switch (yych) {
		case 'y': goto yy12;
		default: goto yy5;
	}
yy12:
	++YYCURSOR;
#line 11 "c/reuse/reuse.re"
	{ return 0; }
#line 86 "c/reuse/reuse.c"
}
#line 20 "c/reuse/reuse.re"

}

static int lex_utf32(const uint32_t *s) {
    const uint32_t *YYCURSOR = s, *YYMARKER;
    
#line 95 "c/reuse/reuse.c"
{
	uint32_t yych;
	yych = *YYCURSOR;
	if (yych == 0x00002200) goto yy15;
	++YYCURSOR;
yy14:
#line 12 "c/reuse/reuse.re"
	{ return 1; }
#line 104 "c/reuse/reuse.c"
yy15:
	yych = *(YYMARKER = ++YYCURSOR);
	if (yych != 'x') goto yy14;
	yych = *++YYCURSOR;
	if (yych == ' ') goto yy17;
yy16:
	YYCURSOR = YYMARKER;
	goto yy14;
yy17:
	yych = *++YYCURSOR;
	if (yych != 0x00002203) goto yy16;
	yych = *++YYCURSOR;
	if (yych != 'y') goto yy16;
	++YYCURSOR;
#line 11 "c/reuse/reuse.re"
	{ return 0; }
#line 121 "c/reuse/reuse.c"
}
#line 28 "c/reuse/reuse.re"

}

int main() {
    static const uint8_t s8[] = // UTF-8
        { 0xe2, 0x88, 0x80, 0x78, 0x20, 0xe2, 0x88, 0x83, 0x79 };

    static const uint32_t s32[] = // UTF32
        { 0x00002200, 0x00000078, 0x00000020, 0x00002203, 0x00000079 };

    assert(lex_utf8(s8) == 0);
    assert(lex_utf32(s32) == 0);
    return 0;
}