| Revision 58,
1.5 KB
checked in by jtkohl, 38 years ago
(diff) |
|
fixed signal handling
|
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| 1 | /* Mode: -*- C -*- */ |
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| 2 | %{ |
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| 3 | #include <sys/file.h> |
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| 4 | #include <signal.h> |
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| 5 | extern int sighandler(); |
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| 6 | char *reset="\033c"; /* ris */ |
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| 7 | char *land_length="\033[2550t"; |
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| 8 | char *landscape="\033[10m"; |
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| 9 | char *port_length="\033[3300t"; /* form length = 11 inches */ |
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| 10 | char *portrait="\033[11m"; |
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| 11 | char *beginunderline = "\033[4m"; |
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| 12 | char *endunderline = "\033[0m"; |
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| 13 | char *mode; |
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| 14 | char *form_length; |
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| 15 | %} |
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| 16 | PRINTABLE [0-9A-Za-z \t`\[\];'\\<,./-=~!@#$%^&*()_+{}:"|>?] |
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| 17 | %% |
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| 18 | \f { |
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| 19 | printf("\f%s%s%s",reset,mode,form_length); |
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| 20 | fflush(stdout); |
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| 21 | } |
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| 22 | (_\b{PRINTABLE})+ { |
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| 23 | register char *p = &yytext[0]; |
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| 24 | printf(beginunderline); |
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| 25 | while(*p) |
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| 26 | { |
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| 27 | if((*p != '_') && (*p != '\b')) |
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| 28 | { |
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| 29 | putchar(*p); |
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| 30 | } |
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| 31 | ++p; |
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| 32 | } |
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| 33 | printf(endunderline); |
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| 34 | fflush(stdout); |
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| 35 | } |
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| 36 | \031\1 { /* ^Y^A */ |
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| 37 | /* |
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| 38 | * lpd needs to use a different filter to |
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| 39 | * print data so stop what we are doing and |
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| 40 | * wait for lpd to restart us. |
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| 41 | */ |
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| 42 | fflush(stdout); |
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| 43 | kill(getpid(), SIGSTOP); |
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| 44 | printf("%s%s%s",reset,mode,form_length); |
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| 45 | fflush(stdout); |
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| 46 | } |
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| 47 | |
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| 48 | %% |
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| 49 | |
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| 50 | yywrap() |
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| 51 | { |
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| 52 | fflush(stdout); |
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| 53 | flock(1, LOCK_UN); |
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| 54 | return(1); |
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| 55 | } |
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| 56 | main(argc,argv) |
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| 57 | int argc; |
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| 58 | register char *argv[]; |
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| 59 | { |
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| 60 | register int i; |
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| 61 | flock(1, LOCK_EX); |
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| 62 | if(!strcmp(argv[0], "ln01l")) { |
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| 63 | mode = landscape; |
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| 64 | form_length = land_length; |
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| 65 | } |
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| 66 | else { |
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| 67 | mode = portrait; |
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| 68 | form_length = port_length; |
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| 69 | } |
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| 70 | setbuf(stdout, NULL); |
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| 71 | printf("%s%s%s",reset,mode,form_length); |
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| 72 | fflush(stdout); |
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| 73 | while(1) { |
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| 74 | if(yylex() <= 0) break; |
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| 75 | } |
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| 76 | } |
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| 77 | |
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| 78 | /* Local Modes: */ |
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| 79 | /* Mode:C */ |
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| 80 | /* End: */ |
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