snapshot of project "lynx", label v2-8-1dev_4

1 files changed, 160 insertions, 0 deletions

diff --git a/utils/lpansi/lpansi.c b/utils/lpansi/lpansi.c
new file mode 100644
index 00000000..4ea10e4f
--- /dev/null
+++ b/utils/lpansi/lpansi.c
@@ -0,0 +1,160 @@
+/********************************************************
+ * lpansi.c                                             *
+ * Original author: Gary Day, 11/30/93                  *
+ * Current version: 2.1 by Noel Hunter, 10/20/94        *
+ *                                                      *
+ * Basic structure based on print -- format files for   *
+ * printing from _Pratical_C_Programming by Steve       *
+ * Oualline, O'Reilly & Associates                      *
+ ********************************************************/
+#include <stdio.h>
+#include <stdlib.h>      /* ANSI Standard only */
+#include <string.h>
+#ifdef VMS
+#include <unixio.h>
+#include <unixlib.h>
+#endif /* VMS */
+
+int verbose = 0;         /* verbose mode (default = false) */
+int formfeed = 1;	 /* form feed mode (default = true) */
+char *program_name;      /* name of the program (for errors) */
+
+/* Ansi C function prototypes */
+void ansi_printer_on(void);
+void ansi_printer_off(void);
+int main(int argc, char *argv[]);
+
+main(int argc, char *argv[])
+{
+    void do_file(char *); /* print a file */
+    void usage(void);     /* tell user how to use the program */
+
+    /* save the program name for future use */
+    program_name = argv[0];
+
+    /* 
+     * loop for each option.  
+     *   Stop if we run out of arguments
+     *   or we get an argument without a dash.
+     */
+    while ((argc > 1) && (argv[1][0] == '-')) {
+        /*
+         * argv[1][1] is the actual option character.
+         */
+        switch (argv[1][1]) {
+            /*
+             * -v verbose 
+             */
+            case 'v':
+                verbose = 1; 
+                (void)printf("VERBOSE mode ON\n");
+                break;
+            case 'f':
+                formfeed = 0;
+                break;
+            default:
+                (void)fprintf(stderr,"Bad option %s\n", argv[1]);
+                usage();
+        }
+        /*
+         * move the argument list up one
+         * move the count down one
+         */
+        argv++;
+        argc--;
+    }
+
+    /*
+     * At this point all the options have been processed.
+     * Check to see if we have no files in the list
+     * and if so, we need to process just standard in.
+     */
+    if (argc == 1) {
+        do_file("stdin");
+    } else {
+        while (argc > 1) {
+          do_file(argv[1]);
+          argv++;
+          argc--;
+        }
+    }
+    return (0);
+}
+/********************************************************
+ * do_file -- send a file to the printer                *
+ *                                                      *
+ * Parameter                                            *
+ *      name -- name of the file to print               *
+ ********************************************************/
+void do_file(char *name)
+{
+  int  ch;    /* Where we store our characters */
+  FILE *fp;   /* File pointer */
+
+  if ( verbose == 1 ) (void)printf("Processing: %s\n", name);
+
+  ansi_printer_on();
+
+  if ( strcmp(name,"stdin") == 0 )
+  {
+    while ((ch=getc(stdin))!=EOF)
+    {
+     putc(ch,stdout);
+    }
+  }
+  else        /* Reading from a file */
+  {
+    if ((fp=fopen(name, "r"))==NULL)
+    {
+    printf("Can't open %s\n",name);
+    exit(1);
+    }
+    while ((ch=getc(fp))!=EOF)
+    {
+     putc(ch,stdout);
+    }
+    fclose(fp);
+  }
+
+  if ( formfeed == 1 )
+  {
+    printf("\n\x0C");  /* Do a form feed at the end of the document */
+  }
+
+  ansi_printer_off();
+ 
+  if ( verbose == 1 ) (void)printf("Finished processing: %s\n", name);
+
+}
+
+/********************************************************
+ * usage -- tell the user how to use this program and   *
+ *              exit                                    *
+ ********************************************************/
+void usage(void)
+{
+    (void)fprintf(stderr,"Usage is %s [options] [file-list]\n", 
+                                program_name);
+    (void)fprintf(stderr,"Options\n");
+    (void)fprintf(stderr,"  -f          form feed OFF\n");
+    (void)fprintf(stderr,"  -v          verbose\n");
+    exit (1);
+}
+
+/********************************************************
+ * Send a printer on escape sequence                    *
+ *******************************************************/
+void ansi_printer_on(void)
+{
+  if ( verbose == 1 ) (void)printf("ANSI printer ON\n");
+  printf("\x1B[5i");
+}
+
+/********************************************************
+ * Send a printer off escape sequence                   *
+ *******************************************************/
+void ansi_printer_off(void)
+{
+  printf("\x1B[4i");
+  if ( verbose == 1 ) (void)printf("ANSI printer OFF\n");
+}