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-rw-r--r--sample/rcs.awk33
1 files changed, 33 insertions, 0 deletions
diff --git a/sample/rcs.awk b/sample/rcs.awk
new file mode 100644
index 0000000..0897928
--- /dev/null
+++ b/sample/rcs.awk
@@ -0,0 +1,33 @@
+BEGIN {
+ sw = 40.0;
+ dw = 78.0;
+ hdw = dw / 2.0;
+ w = 20.0;
+ h =1.0;
+ d = 0.2;
+ ss="abcdefghijklmnopqrstuvwxyz0123456789!#$%^&*()-=\\[];'`,./";
+ rnd = srand();
+}
+
+{
+ xr = -hdw; y = h * 1.0; maxxl = -999;
+ s = "";
+ while (xr < hdw) {
+ x = xr * (1 + y) - y * w / 2;
+ i = (x / (1 + h) + sw /2);
+ c = (0 < i && i < length($0)) ? substr($0, i, 1) : "0";
+ y = h - d * c;
+ xl = xr - w * y / (1 + y);
+ if (xl < -hdw || xl >= hdw || xl <= maxxl) {
+ t = rand() * length(ss);
+ c = substr(ss, t, 1);
+ }
+ else {
+ c = substr(s, xl + hdw, 1);
+ maxxl = xl;
+ }
+ s = s c;
+ xr = xr + 1;
+ }
+ print s;
+}