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| Commit | Line | Data |
|---|---|---|
| b4c8f1da | 1 | #ifndef lint |
| ca67e7b4 | 2 | static char sccsid[] = "@(#)input.c 1.1 (Berkeley) 2/25/86"; |
| b4c8f1da SL |
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 | } |