Commit | Line | Data |
---|---|---|
45964d3d BJ |
1 | #include <stdio.h> |
2 | ||
3 | #define BACKSPACE 0 | |
4 | #define QUOTE 0200 | |
5 | /* | |
6 | * iul - a cat like program to indicate underlining for graphic terminals | |
7 | * | |
8 | * Bill Joy UCB June 22, 1977 | |
9 | * | |
10 | * This program was a piece of the editor ex. | |
11 | */ | |
12 | ||
13 | #define LBSIZE 512 | |
14 | ||
15 | char linebuf[LBSIZE], genbuf[LBSIZE]; | |
16 | char *strcpy(); | |
17 | ||
18 | main(argc, argv) | |
19 | int argc; | |
20 | char *argv[]; | |
21 | { | |
22 | register c; | |
23 | register char *lp; | |
24 | char obuf[BUFSIZ]; | |
25 | ||
26 | setbuf(stdout, obuf); | |
27 | argc--; | |
28 | argv++; | |
29 | do { | |
30 | if (argc > 0) { | |
31 | if (freopen(argv[0], "r", stdin) == NULL) { | |
32 | perror(argv[0]); | |
33 | exit(1); | |
34 | } | |
35 | argc--; argv++; | |
36 | } | |
37 | while (fgets(linebuf, sizeof linebuf, stdin) != 0) { | |
38 | for (lp = linebuf; *lp; lp++) | |
39 | continue; | |
40 | *--lp = 0; | |
41 | doulg(); | |
42 | dographic(); | |
43 | if (genbuf[0]) | |
44 | printf("\n%s", genbuf); | |
45 | putchar('\n'); | |
46 | fflush(stdout); | |
47 | } | |
48 | } while (argc > 0); | |
49 | exit(0); | |
50 | } | |
51 | ||
52 | dographic() | |
53 | { | |
54 | register char *lp; | |
55 | register c; | |
56 | ||
57 | for (lp = linebuf; c = *lp++;) { | |
58 | switch (c) { | |
59 | case '\b': | |
60 | if (BACKSPACE == 0) | |
61 | c = '?'; | |
62 | break; | |
63 | default: | |
64 | if (c < ' ' || c == 0177) | |
65 | c = '?'; | |
66 | break; | |
67 | case '\t': | |
68 | break; | |
69 | } | |
70 | putchar(c); | |
71 | } | |
72 | } | |
73 | ||
74 | doulg() | |
75 | { | |
76 | register char *lp, *gp; | |
77 | char *maxgp; | |
78 | register c; | |
79 | char csw; | |
80 | int col; | |
81 | ||
82 | gp = genbuf; | |
83 | *gp = 0; | |
84 | maxgp = gp; | |
85 | col = 0; | |
86 | for (lp = linebuf; c = *lp++;) { | |
87 | switch (c) { | |
88 | case '\t': | |
89 | while ((col & 7) != 7) { | |
90 | *gp++ = ' '; | |
91 | if (gp >= &genbuf[LBSIZE - 2]) | |
92 | goto ovflo; | |
93 | col++; | |
94 | } | |
95 | break; | |
96 | default: | |
97 | if (gp >= maxgp) | |
98 | break; | |
99 | c =| (*gp & QUOTE); | |
100 | break; | |
101 | case '_': | |
102 | if (gp >= maxgp) | |
103 | c = QUOTE; | |
104 | else | |
105 | c = *gp | QUOTE; | |
106 | break; | |
107 | case '\b': | |
108 | if (gp > genbuf) { | |
109 | gp--; | |
110 | col--; | |
111 | } | |
112 | continue; | |
113 | } | |
114 | if (gp >= &genbuf[LBSIZE - 2]) { | |
115 | ovflo: | |
116 | fprintf(stderr, "Line too long\n"); | |
117 | exit(1); | |
118 | } | |
119 | *gp++ = c; | |
120 | if (gp > maxgp) | |
121 | maxgp = gp; | |
122 | col++; | |
123 | } | |
124 | *maxgp = 0; | |
125 | strcpy(linebuf, genbuf); | |
126 | for (lp = linebuf, gp = genbuf; c = *lp; gp++, lp++) | |
127 | if (c & QUOTE) { | |
128 | c =& 0177; | |
129 | if (c == 0) | |
130 | *lp = '_', *gp = ' '; | |
131 | else | |
132 | *lp = c, *gp = '-'; | |
133 | } else | |
134 | *gp = ' '; | |
135 | --gp; | |
136 | while (gp >= genbuf && *gp == ' ') | |
137 | --gp; | |
138 | gp[1] = 0; | |
139 | } |