checkpoint

1 files changed, 34 insertions, 0 deletions

diff --git a/bin/extra/asciiext b/bin/extra/asciiext
new file mode 100755
index 0000000..00e3408
--- /dev/null
+++ b/bin/extra/asciiext
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# heading index with div line
+printf "\n      "; # indent
+
+for x in {0..15}; do printf "%-3x" $x; done;
+printf "\n%46s\n" | sed 's/ /-/g;s/^/      /';
+
+# two lines with dots to represent control chars
+c=$(echo "fa" | xxd -p -r | iconv -f 'CP437//' -t 'UTF-8')
+printf "%32s" | sed 's/../'"$c"'  /g;s/^/  0   /;s/$/\n\n/'
+printf "%32s" | sed 's/../'"$c"'  /g;s/^/  1   /'
+
+# convert dec to codepage 437 in a table
+for x in {32..255};
+do
+
+  # newline every 16 translated code values
+  (( x % 16 == 0 )) && printf "\n\n"
+
+  # left index numbers
+  let "n = x % 15"
+  (( (x % 16) == 0 )) && printf "%-4x" $n | sed 's/0/f/;s/^/  /'
+
+  # conversion of x integer value to symbol
+  printf "%02x" $x | xxd -p -r | iconv -f 'CP437//' -t 'UTF-8' | sed 's/.*/&  /'
+
+  # div line
+  (( x == 127 )) && printf "%46s" | sed 's/ /-/g;s/^/      /;i\ '
+
+done
+printf "%46s" | sed 's/ /-/g;s/^/\n      /;s/$/\n      /'; # div line
+for x in {0..15}; do printf "%-3x" $x; done;
+echo