release 1.10.6

[descalc.git] / 08_stdout.pm

diff --git a/08_stdout.pm b/08_stdout.pm
new file mode 100644 (file)
index 0000000..ededf36
--- /dev/null
+++ b/08_stdout.pm
@@ -0,0 +1,44 @@
+# console output for DCT, by Shiar
+
+# 1.10.1 200410140120 - print everything to STDOUT
+#     .2              - use escape sequences for clear/reposition/invert
+#     .3              - try to get width/height from environment vars
+#     .4              - never clear screen (just let it scroll)
+#     .5 200410142200 - startup message omitted (now shown by main)
+
+use strict;
+use warnings;
+
+return 0 if $set{display};
+$set{display} = "stdout";
+
+push @{$hook{init}}, sub {
+#      print "\ec";  # reset (clear screen, go home)
+#      print "\e[4mDCT $::VERSION\e[24m ";  # print intro (underlined)
+       END { print "\n"; }
+
+       $set{height} = $ENV{LINES}-2 if $ENV{LINES} and $ENV{LINES}>=3;
+       $set{width} = $ENV{COLUMNS} if $ENV{COLUMNS};
+}; # init
+
+push @{$hook{showerror}}, sub {
+       print "\n\a\e[7m$_[0]\e[27m";  # bell and reverse video
+}; # showerror
+
+push @{$hook{showstack}}, sub {
+       for (reverse 0..@stack-1) {
+               print "\n$_: ", showval($stack[$_], $set{base});
+       } # show stack
+       print "\n> ";  # prompt
+}; # showstack
+
+push @{$hook{showentry}}, sub {
+       print "\e[3G\e[K", $_[0];  # cursor to column #3; erase line
+}; # showentry
+
+return {
+       author  => "Shiar",
+       title   => "console output",
+       version => "1.10.4",
+};
+