1 // RUN: %clangxx -O0 -g %s -o %t && %run %t 2>&1 | FileCheck %s
2 //
3 // UNSUPPORTED: linux, solaris, darwin
4 
5 #include <ctype.h>
6 #include <err.h>
7 #include <inttypes.h>
8 #include <stdint.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <vis.h>
12 
13 void test_vis() {
14   char visout[5];
15   int ch = toascii(0x1);
16   vis(visout, ch, VIS_SAFE | VIS_NOSLASH, 0);
17   printf("vis: %s\n", visout);
18 }
19 
20 void test_nvis() {
21   char visout[5];
22   int ch = toascii(0x2);
23   nvis(visout, sizeof visout, ch, VIS_SAFE | VIS_NOSLASH, 0);
24   printf("nvis: %s\n", visout);
25 }
26 
27 void test_strvis() {
28   char visout[5];
29   strvis(visout, "\3", VIS_SAFE | VIS_NOSLASH);
30   printf("strvis: %s\n", visout);
31 }
32 
33 void test_stravis() {
34   char *visout;
35   stravis(&visout, "\4", VIS_SAFE | VIS_NOSLASH);
36   printf("stravis: %s\n", visout);
37   free(visout);
38 }
39 
40 void test_strnvis() {
41   char visout[5];
42   strnvis(visout, sizeof visout, "\5", VIS_SAFE | VIS_NOSLASH);
43   printf("strnvis: %s\n", visout);
44 }
45 
46 void test_strvisx() {
47   char visout[5];
48   char src[] = "\6";
49   strvisx(visout, src, sizeof src - 1 /* skip final \0 */,
50           VIS_SAFE | VIS_NOSLASH);
51   printf("strvisx: %s\n", visout);
52 }
53 
54 void test_strnvisx() {
55   char visout[5];
56   char src[] = "\1";
57   strnvisx(visout, sizeof visout, src, sizeof src - 1 /* skip final \0 */,
58            VIS_SAFE | VIS_NOSLASH);
59   printf("strnvisx: %s\n", visout);
60 }
61 
62 void test_strenvisx() {
63   char visout[5];
64   char src[] = "\2";
65   strenvisx(visout, sizeof visout, src, sizeof src - 1 /* skip final \0 */,
66             VIS_SAFE | VIS_NOSLASH, NULL);
67   printf("strenvisx: %s\n", visout);
68 }
69 
70 void test_svis() {
71   char visout[5];
72   int ch = toascii(0x3);
73   svis(visout, ch, VIS_SAFE | VIS_NOSLASH, 0, "x");
74   printf("svis: %s\n", visout);
75 }
76 
77 void test_snvis() {
78   char visout[5];
79   int ch = toascii(0x2);
80   snvis(visout, sizeof visout, ch, VIS_SAFE | VIS_NOSLASH, 0, "x");
81   printf("snvis: %s\n", visout);
82 }
83 
84 void test_strsvis() {
85   char visout[5];
86   strsvis(visout, "\4", VIS_SAFE | VIS_NOSLASH, "x");
87   printf("strsvis: %s\n", visout);
88 }
89 
90 void test_strsnvis() {
91   char visout[5];
92   strsnvis(visout, sizeof visout, "\5", VIS_SAFE | VIS_NOSLASH, "x");
93   printf("strsnvis: %s\n", visout);
94 }
95 
96 void test_strsvisx() {
97   char visout[5];
98   char src[] = "\5";
99   strsvisx(visout, src, sizeof src - 1 /* skip final \0 */,
100            VIS_SAFE | VIS_NOSLASH, "x");
101   printf("strsvisx: %s\n", visout);
102 }
103 
104 void test_strsnvisx() {
105   char visout[5];
106   char src[] = "\6";
107   strsnvisx(visout, sizeof visout, src, sizeof src - 1 /* skip final \0 */,
108             VIS_SAFE | VIS_NOSLASH, "x");
109   printf("strsnvisx: %s\n", visout);
110 }
111 
112 void test_strsenvisx() {
113   char visout[5];
114   char src[] = "\1";
115   strsenvisx(visout, sizeof visout, src, sizeof src - 1 /* skip final \0 */,
116              VIS_SAFE | VIS_NOSLASH, "x", NULL);
117   printf("strsenvisx: %s\n", visout);
118 }
119 
120 void test_unvis() {
121   char visout[5];
122   int ch = toascii(0x1);
123   vis(visout, ch, VIS_SAFE, 0);
124 
125   int state = 0;
126   char out;
127   char *p = visout;
128   while ((ch = *(p++)) != '\0') {
129   again:
130     switch (unvis(&out, ch, &state, 0)) {
131     case 0:
132     case UNVIS_NOCHAR:
133       break;
134     case UNVIS_VALID:
135       printf("unvis: %" PRIx8 "\n", (unsigned char)out);
136       break;
137     case UNVIS_VALIDPUSH:
138       printf("unvis: %" PRIx8 "\n", (unsigned char)out);
139       goto again;
140     case UNVIS_SYNBAD:
141       errx(1, "Bad character sequence!");
142     }
143   }
144   if (unvis(&out, '\0', &state, UNVIS_END) == UNVIS_VALID)
145     printf("unvis: %" PRIx8 "\n", (unsigned char)out);
146 }
147 
148 void test_strunvis() {
149   char visout[5];
150   int ch = toascii(0x2);
151   vis(visout, ch, VIS_SAFE, 0);
152 
153   char p[5];
154   strunvis(p, visout);
155 
156   char *pp = p;
157   while ((ch = *(pp++)) != '\0')
158     printf("strunvis: %" PRIx8 "\n", (unsigned char)ch);
159 }
160 
161 void test_strnunvis() {
162   char visout[5];
163   int ch = toascii(0x3);
164   vis(visout, ch, VIS_SAFE, 0);
165 
166   char p[5];
167   strnunvis(p, sizeof p, visout);
168 
169   char *pp = p;
170   while ((ch = *(pp++)) != '\0')
171     printf("strnunvis: %" PRIx8 "\n", (unsigned char)ch);
172 }
173 
174 void test_strunvisx() {
175   char visout[5];
176   int ch = toascii(0x4);
177   vis(visout, ch, VIS_SAFE, 0);
178 
179   char p[5];
180   strunvisx(p, visout, VIS_SAFE);
181 
182   char *pp = p;
183   while ((ch = *(pp++)) != '\0')
184     printf("strunvisx: %" PRIx8 "\n", (unsigned char)ch);
185 }
186 
187 void test_strnunvisx() {
188   char visout[5];
189   int ch = toascii(0x5);
190   vis(visout, ch, VIS_SAFE, 0);
191 
192   char p[5];
193   strnunvisx(p, sizeof p, visout, VIS_SAFE);
194 
195   char *pp = p;
196   while ((ch = *(pp++)) != '\0')
197     printf("strnunvisx: %" PRIx8 "\n", (unsigned char)ch);
198 }
199 
200 int main(void) {
201   printf("vis\n");
202 
203   test_vis();
204   test_nvis();
205   test_strvis();
206   test_stravis();
207   test_strnvis();
208   test_strvisx();
209   test_strnvisx();
210   test_strenvisx();
211   test_svis();
212   test_snvis();
213   test_strsvis();
214   test_strsnvis();
215   test_strsvisx();
216   test_strsnvisx();
217   test_strsenvisx();
218   test_unvis();
219   test_strunvis();
220   test_strnunvis();
221   test_strunvisx();
222   test_strnunvisx();
223 
224   // CHECK: vis
225   // CHECK: vis: ^A
226   // CHECK: nvis: ^B
227   // CHECK: strvis: ^C
228   // CHECK: stravis: ^D
229   // CHECK: strnvis: ^E
230   // CHECK: strvisx: ^F
231   // CHECK: strnvisx: ^A
232   // CHECK: strenvisx: ^B
233   // CHECK: svis: ^C
234   // CHECK: snvis: ^B
235   // CHECK: strsvis: ^D
236   // CHECK: strsnvis: ^E
237   // CHECK: strsvisx: ^E
238   // CHECK: strsnvisx: ^F
239   // CHECK: strsenvisx: ^A
240   // CHECK: unvis: 1
241   // CHECK: strunvis: 2
242   // CHECK: strnunvis: 3
243   // CHECK: strunvisx: 4
244   // CHECK: strnunvisx: 5
245 
246   return 0;
247 }
248