/* * * Things used to handle special requests (eg. manual feed) globally or on a per * page basis. Requests are passed through to the translator using the -R option. * The argument to -R can be "request", "request:page", or "request:page:file". * If page is omitted (as in the first form) or set to 0 request will be applied * to the global environment. In all other cases it applies only to the selected * page. If a file is given, page must be supplied, and the lookup is in that file * rather than *requestfile. * */ #include <stdio.h> #include "gen.h"			/* general purpose definitions */#include "request.h"			/* a few special definitions */#include "path.h"			/* for the default request file */ Request	request[MAXREQUEST];		/* next page or global request */int	nextreq = 0;			/* goes in request[nextreq] */char	*requestfile = REQUESTFILE;	/* default lookup file */ /*****************************************************************************/ saverequest(char *want){     char	*page;			/* and save it for this page */    char	*strtok(); /* * * Save the request until we get to appropriate page - don't even bother with * the lookup right now. Format of *want string is "request", "request:page", or * "request:page:file", and we assume we can change the string here as needed. * If page is omitted or given as 0 the request will be done globally. If *want * includes a file, request and page must also be given, and in that case *file * will be used for the lookup. * */     if ( nextreq < MAXREQUEST )  {	request[nextreq].want = strtok(want, ": ");	if ( (page = strtok(NULL, ": ")) == NULL )	    request[nextreq].page = 0;	else request[nextreq].page = atoi(page);	if ( (request[nextreq].file = strtok(NULL, ": ")) == NULL )	    request[nextreq].file = requestfile;	nextreq++;    } else error(NON_FATAL, "too many requests - ignoring %s", want); }   /* End of saverequest */ /*****************************************************************************/ writerequest(int page, FILE *fp_out){     int		i;			/* loop index */ /* * * Writes out all the requests that have been saved for page. Page 0 refers to * the global environment and is done during initial setup. * */     for ( i = 0; i < nextreq; i++ )	if ( request[i].page == page )	    dumprequest(request[i].want, request[i].file, fp_out); }   /* End of writerequest */ /*****************************************************************************/ dumprequest(char *want, char *file, FILE *fp_out){     char	buf[100];		/* line buffer for reading *file */    FILE	*fp_in; /* * * Looks for *want in the request file and if it's found the associated value * is copied to the output file. Keywords (ie. the *want strings) begin an @ in * the first column of file, while the values (ie. the stuff that's copied to * the output file) starts on the next line and extends to the next keyword or * to the end of file. * */     if ( (fp_in = fopen(file, "r")) != NULL )  {	while ( fgets(buf, sizeof(buf), fp_in) != NULL )	    if ( buf[0] == '@' && strncmp(want, &buf[1], strlen(want)) == 0 )		while ( fgets(buf, sizeof(buf), fp_in) != NULL )		    if ( buf[0] == '#' || buf[0] == '%' )			continue;		    else if ( buf[0] != '@' )			fprintf(fp_out, "%s", buf);		    else break;	fclose(fp_in);    }	/* End if */ }   /* End of dumprequest */ /*****************************************************************************/