Re: axlisten: colors for command line

[David Ranch]

Hello Folkert,

Thanks for the patch!  Any chance of posting a before and after screen 
capture to see what it looks like?

--David
KI6ZHD



On 11/19/2018 05:30 AM, folkert wrote:
Hi,

Below you'll find a patch against ax25-apps. It adds the '-C' command
line switch (uppercase c). -c (lowercase) gave you an ncurses colored
listing of all packets received. -C (uppercase) does the same but
without ncurses, e.g. directly on the commandline. It does this with
ANSI-escape codes. You may want this if you want to be able to more
easily scroll back (which can be problematic for ncurses applications)
and to redirect the output (colored) to a file.


diff --git a/AUTHORS b/AUTHORS
index 7b91e72..deeee0d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -17,6 +17,7 @@ Heikki Hannikainen OH7LZB<oh7...@sral.fi>
  Alan Cox GW4PTS<a...@cymru.net>
  Jean-Paul for rose decoding
  Jeroen Vreeken for INP decoding
+Folkert van Heusden<m...@vanheusden.com>
  
  call:
  Alexander Tietzel DG6XA<tietz...@etech.fh-hamburg.de>
diff --git a/listen/listen.c b/listen/listen.c
index 6504ed5..c922fe1 100644
--- a/listen/listen.c
+++ b/listen/listen.c
@@ -203,7 +203,7 @@ int main(int argc, char **argv)
        int proto = ETH_P_AX25;
        int exit_code = EXIT_SUCCESS;
  
-	while ((s = getopt(argc, argv, "8achip:rtv")) != -1) {
+       while ((s = getopt(argc, argv, "8acChip:rtv")) != -1) {
                switch (s) {
                case '8':
                        sevenbit = 0;
@@ -214,6 +214,9 @@ int main(int argc, char **argv)
                case 'c':
                        color = 1;
                        break;
+               case 'C':
+                       a_color = 1;
+                       break;
                case 'h':
                        dumpstyle = HEX;
                        break;
diff --git a/listen/listen.h b/listen/listen.h
index 46ec397..72c185e 100644
--- a/listen/listen.h
+++ b/listen/listen.h
@@ -36,6 +36,7 @@
  
  /* In utils.c */
  extern int color;                     /* Colorized mode */
+extern int a_color;                    /* ANSI-colorized mode */
  extern int sevenbit;                  /* Are we on a 7-bit terminal? */
  extern int ibmhack;                   /* IBM mapping? */
  
diff --git a/listen/utils.c b/listen/utils.c
index 4d99e10..26653a4 100644
--- a/listen/utils.c
+++ b/listen/utils.c
@@ -16,6 +16,7 @@
  #include "listen.h"
  
  int color = 0;			/* Colorized? */
+int a_color = 0;               /* ANSI-colorized mode */
  int sevenbit = 1;             /* Are we on a 7-bit terminal? */
  int ibmhack = 0;              /* IBM mapping? */
  
@@ -45,7 +46,7 @@ void lprintf(int dtype, char *fmt, ...)
        vsnprintf(str, 1024, fmt, args);
        va_end(args);
  
-	if (color) {
+       if (color || a_color) {
                for (p = str; *p != '\0'; p++) {
                        ch = *p;
  
@@ -63,9 +64,20 @@ void lprintf(int dtype, char *fmt, ...)
                            || (dtype == T_TIMESTAMP))
                                ch |= A_BOLD;
  
-			ch |= COLOR_PAIR(dtype);
+                       if (color) {
+                               ch |= COLOR_PAIR(dtype);
+                               addch(ch);
+                       }
+                       else { /* a_color */
+                               if (ch & A_BOLD)
+                                       printf("\x1b[1m");
+                               if (ch & A_REVERSE)
+                                       printf("\x1b[7m");
  
-			addch(ch);
+                               printf("\x1b[%dm%c", 30 + (dtype & 7), ch & 
255);
+
+                               printf("\x1b[0m");
+                       }
                }
        } else {
                for (p = str; *p != '\0'; p++)


Folkert van Heusden