projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0fc6e47b KB |
1 | /*- |
| 2 | * %sccs.include.proprietary.c% | |
| 3 | */ | |
| 4 | ||
| 264a0334 | 5 | #ifndef lint |
| 0fc6e47b KB |
6 | static char sccsid[] = "@(#)1.line.c 4.2 (Berkeley) %G%"; |
| 7 | #endif /* not lint */ | |
| 264a0334 RH |
8 | |
| 9 | #include <stdio.h> | |
| 10 | # | |
| 11 | #include "def.h" | |
| 12 | #define bufsize 1601 | |
| 13 | char buffer[bufsize]; | |
| 14 | int bufcount; | |
| 15 | extern int errflag; | |
| 16 | long stchars; /* counts number of chars at most recent \n read */ | |
| 17 | #ifndef unix | |
| 18 | long ostchars; | |
| 19 | extern long ftell(); | |
| 20 | #endif | |
| 21 | int newline; /* counts number of lines read so far in file */ | |
| 22 | extern int rdfree(), comfree(),labfree(), contfree(); | |
| 23 | extern int rdstand(), comstand(), labstand(), contstand(); | |
| 24 | extern int (*rline[])(); | |
| 25 | extern int (*comment[])(); | |
| 26 | extern int (*getlabel[])(); | |
| 27 | extern int (*chkcont[])(); | |
| 28 | ||
| 29 | ||
| 30 | ||
| 31 | flush() | |
| 32 | {bufcount = 0; } | |
| 33 | ||
| 34 | addchar(c) | |
| 35 | { | |
| 36 | buffer[bufcount++] = c; | |
| 37 | } | |
| 38 | ||
| 39 | getline(lastline,lastchar,linecom,charcom) | |
| 40 | int *lastline, *linecom; | |
| 41 | long *lastchar, *charcom; | |
| 42 | /* set *lastline to number of last line of statement, | |
| 43 | set *lastchar to number of last char of statement, | |
| 44 | set *linecom to number of last line of comment preceding statement */ | |
| 45 | { | |
| 46 | ||
| 47 | int i; | |
| 48 | flush(); | |
| 49 | while ( unput1(input1()) != EOF) | |
| 50 | { | |
| 51 | while ( (*comment[inputform])(0) || blankline() ) | |
| 52 | { | |
| 53 | (*rline[inputform])(addchar); | |
| 54 | flush(); | |
| 55 | } | |
| 56 | *linecom = newline; | |
| 57 | /* set charcom to number of last char of comment, starting at 0 | |
| 58 | if at start of file and no comment, will be -1 */ | |
| 59 | *charcom = stchars - 1; | |
| 60 | if (unput1(input1()) == EOF) break; | |
| 61 | (*getlabel[inputform])(addchar); | |
| 62 | (*rline[inputform])(addchar); | |
| 63 | ||
| 64 | while ( blankline() || ( !(*comment[inputform])(0) && (*chkcont[inputform])() )) | |
| 65 | (*rline[inputform])(addchar); | |
| 66 | ||
| 67 | addchar('\0'); | |
| 68 | *lastline = newline; | |
| 69 | *lastchar = stchars - 1; | |
| 70 | if (debug == 40) | |
| 71 | fprintf(stderr,"line %d; bufcount: %d\n",newline,bufcount); | |
| 72 | ||
| 73 | for (i = 5; i < bufcount; ++i) | |
| 74 | if (buffer[i] == ' ' || buffer[i] == '\t' || buffer[i] == '\n') | |
| 75 | buffer[i] = '~'; | |
| 76 | return(bufcount); | |
| 77 | } | |
| 78 | return(-1); | |
| 79 | } | |
| 80 | ||
| 81 | ||
| 82 | int linechars; /* counts number of chars read so far in current line */ | |
| 83 | long newchar; /* counts number of chars read so far in file */ | |
| 84 | ||
| 85 | ||
| 86 | input1() | |
| 87 | { | |
| 88 | static int c; | |
| 89 | if (c == '\n') linechars = 0; | |
| 90 | c = inchar(); | |
| 91 | ++linechars; | |
| 92 | ++newchar; | |
| 93 | if (c == '\n') | |
| 94 | { | |
| 95 | ++newline; | |
| 96 | #ifdef unix | |
| 97 | stchars = newchar; | |
| 98 | #else | |
| 99 | ostchars=stchars; stchars=ftell(infd); | |
| 100 | #endif | |
| 101 | } | |
| 102 | return(c); | |
| 103 | } | |
| 104 | ||
| 105 | unput1(c) | |
| 106 | { | |
| 107 | --linechars; | |
| 108 | --newchar; | |
| 109 | unchar(c); | |
| 110 | if (c == '\n') | |
| 111 | { | |
| 112 | #ifdef unix | |
| 113 | stchars = newchar; | |
| 114 | #else | |
| 115 | stchars=ostchars; | |
| 116 | #endif | |
| 117 | --newline; | |
| 118 | } | |
| 119 | return(c); | |
| 120 | } | |
| 121 | ||
| 122 | ||
| 123 | ||
| 124 |