Commit | Line | Data |
---|---|---|
7c658c65 B |
1 | # |
2 | /* | |
3 | * UNIX shell | |
4 | * | |
5 | * S. R. Bourne | |
6 | * Bell Telephone Laboratories | |
7 | * | |
8 | */ | |
9 | ||
10 | #include "defs.h" | |
11 | ||
12 | CHAR numbuf[6]; | |
13 | ||
14 | ||
15 | /* printing and io conversion */ | |
16 | ||
17 | newline() | |
18 | { prc(NL); | |
19 | } | |
20 | ||
21 | blank() | |
22 | { prc(SP); | |
23 | } | |
24 | ||
25 | prp() | |
26 | { | |
27 | IF (flags&prompt)==0 ANDF cmdadr | |
28 | THEN prs(cmdadr); prs(colon); | |
29 | FI | |
30 | } | |
31 | ||
32 | VOID prs(as) | |
33 | STRING as; | |
34 | { | |
35 | REG STRING s; | |
36 | ||
37 | IF s=as | |
38 | THEN write(output,s,length(s)-1); | |
39 | FI | |
40 | } | |
41 | ||
42 | VOID prc(c) | |
43 | CHAR c; | |
44 | { | |
45 | IF c | |
46 | THEN write(output,&c,1); | |
47 | FI | |
48 | } | |
49 | ||
50 | prt(t) | |
51 | L_INT t; | |
52 | { | |
53 | REG INT hr, min, sec; | |
54 | ||
55 | t += 30; t /= 60; | |
56 | sec=t%60; t /= 60; | |
57 | min=t%60; | |
58 | IF hr=t/60 | |
59 | THEN prn(hr); prc('h'); | |
60 | FI | |
61 | prn(min); prc('m'); | |
62 | prn(sec); prc('s'); | |
63 | } | |
64 | ||
65 | prn(n) | |
66 | INT n; | |
67 | { | |
68 | itos(n); prs(numbuf); | |
69 | } | |
70 | ||
71 | itos(n) | |
72 | { | |
73 | REG char *abuf; REG POS a, i; INT pr, d; | |
74 | abuf=numbuf; pr=FALSE; a=n; | |
75 | FOR i=10000; i!=1; i/=10 | |
76 | DO IF (pr |= (d=a/i)) THEN *abuf++=d+'0' FI | |
77 | a %= i; | |
78 | OD | |
79 | *abuf++=a+'0'; | |
80 | *abuf++=0; | |
81 | } | |
82 | ||
83 | stoi(icp) | |
84 | STRING icp; | |
85 | { | |
86 | REG CHAR *cp = icp; | |
87 | REG INT r = 0; | |
88 | REG CHAR c; | |
89 | ||
90 | WHILE (c = *cp, digit(c)) ANDF c ANDF r>=0 | |
91 | DO r = r*10 + c - '0'; cp++ OD | |
92 | IF r<0 ORF cp==icp | |
93 | THEN failed(icp,badnum); | |
94 | ELSE return(r); | |
95 | FI | |
96 | } | |
97 |