Commit | Line | Data |
---|---|---|
b4c8f1da SL |
1 | #ifndef lint |
2 | static char sccsid[] = "@(#)input.c 1.1 (Berkeley) %G%"; | |
3 | #endif | |
4 | ||
5 | /* | |
6 | * | |
7 | * UNIX debugger | |
8 | * | |
9 | */ | |
10 | ||
11 | #include "defs.h" | |
12 | ||
13 | INT mkfault; | |
14 | CHAR line[LINSIZ]; | |
15 | INT infile; | |
16 | CHAR *lp; | |
17 | CHAR peekc,lastc = EOR; | |
18 | INT eof; | |
19 | ||
20 | /* input routines */ | |
21 | ||
22 | eol(c) | |
23 | CHAR c; | |
24 | { | |
25 | return(c==EOR ORF c==';'); | |
26 | } | |
27 | ||
28 | rdc() | |
29 | { REP readchar(); | |
30 | PER lastc==SP ORF lastc==TB | |
31 | DONE | |
32 | return(lastc); | |
33 | } | |
34 | ||
35 | readchar(dmy) | |
36 | { | |
37 | IF eof | |
38 | THEN lastc=0; | |
39 | ELSE IF lp==0 | |
40 | THEN lp=line; | |
41 | REP eof = read(infile,lp,1)==0; | |
42 | IF mkfault THEN error(0); FI | |
43 | PER eof==0 ANDF *lp++!=EOR DONE | |
44 | *lp=0; lp=line; | |
45 | FI | |
46 | IF lastc = peekc THEN peekc=0; | |
47 | ELIF lastc = *lp THEN lp++; | |
48 | FI | |
49 | FI | |
50 | return(lastc); | |
51 | } | |
52 | ||
53 | nextchar() | |
54 | { | |
55 | IF eol(rdc()) | |
56 | THEN lp--; return(0); | |
57 | ELSE return(lastc); | |
58 | FI | |
59 | } | |
60 | ||
61 | quotchar() | |
62 | { | |
63 | IF readchar()=='\\' | |
64 | THEN return(readchar()); | |
65 | ELIF lastc=='\'' | |
66 | THEN return(0); | |
67 | ELSE return(lastc); | |
68 | FI | |
69 | } | |
70 | ||
71 | getformat(deformat) | |
72 | STRING deformat; | |
73 | { | |
74 | REG STRING fptr; | |
75 | REG BOOL quote; | |
76 | fptr=deformat; quote=FALSE; | |
77 | WHILE (quote ? readchar()!=EOR : !eol(readchar())) | |
78 | DO IF (*fptr++ = lastc)=='"' | |
79 | THEN quote = ~quote; | |
80 | FI | |
81 | OD | |
82 | lp--; | |
83 | IF fptr!=deformat THEN *fptr++ = '\0'; FI | |
84 | } |