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