working again - readonly

src/awk/weeks.awk

@@ -0,0 +1,44 @@
+function parse(    dt) {
+  # Get timezone information
+  dt = "";
+  for (i=2; i<NF-1; i+=2) {
+    if ($i == "TZID") {
+      dt = "TZ=\"" $(i+1) "\" ";
+      break;
+    }
+  }
+  # Get date/datetime
+  return length($NF) == 8 ?
+    dt $NF :
+    dt gensub(/^([0-9]{8})T([0-9]{2})([0-9]{2})([0-9]{2})(Z)?$/, "\\1 \\2:\\3:\\4\\5", "g", $NF);
+}
+
+function parse_duration(    dt, dta, i, n, a, seps) {
+  n = split($NF, a, /[PTWHMSD]/, seps);
+  delete dta;
+  for (i=2; i<=n; i++) {
+    if(seps[i] == "W") dta["weeks"]   = a[i];
+    if(seps[i] == "H") dta["hours"]   = a[i];
+    if(seps[i] == "M") dta["minutes"] = a[i];
+    if(seps[i] == "S") dta["seconds"] = a[i];
+    if(seps[i] == "D") dta["days"]    = a[i];
+  }
+  dt = a[1] ? a[1] : "+";
+  for (i in dta) {
+    dt = dt " " dta[i] " " i;
+  }
+  return dt;
+}
+
+function fn(path,    n, a) {
+  n = split(path, a, "/");
+  return a[n-1] "/" a[n];
+}
+
+BEGIN                 { FS="[:;=]"; OFS="|" }
+BEGINFILE             { inside = 0; dur = 0; start = "ERROR"; end = "ERROR" }
+/^END:VEVENT/         { print start, dur ? start " " end : end, fn(FILENAME,    n, a); nextfile }
+/^DTSTART/ && inside  { start = parse(    dt) }
+/^DTEND/ && inside    { end = parse(    dt) }
+/^DURATION/ && inside { end = parse_duration(    dt, dta, i, n, a, seps); dur = 1 }
+/^BEGIN:VEVENT/       { inside = 1 }