File: 001_basic_s.re

package info (click to toggle)
re2c 4.1-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 50,052 kB
  • sloc: cpp: 32,477; ml: 8,279; sh: 5,265; makefile: 968; haskell: 612; python: 428; ansic: 227; javascript: 111; java: 3
file content (31 lines) | stat: -rw-r--r-- 474 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
//go:generate re2go $INPUT -o $OUTPUT -s
package main

func Lex(str string) int {
	var cursor, marker int

	/*!re2c
	re2c:yyfill:enable = 0;
	re2c:define:YYCTYPE = byte;
	re2c:define:YYPEEK = "str[cursor]";
	re2c:define:YYSKIP = "cursor += 1";
	re2c:define:YYBACKUP  = "marker = cursor";
	re2c:define:YYRESTORE = "cursor = marker";

	end = [\x00];

	* {
		return -1
	}

	[0-9]+ end {
		return 1
	}
	*/
}

func main() {
	if Lex("123\000") != 1 {
		panic("expected 123")
	}
}