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