ref: 14ac74fce1017b5c23ff4aed6f0289ab82bf71a2
dir: /sys/src/cmd/postscript/common/request.c/
/*
*
* 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 */
/*****************************************************************************/