add mdtf command to format markdown tables

1 files changed, 23 insertions, 0 deletions

diff --git a/bin/mdtf b/bin/mdtf
new file mode 100755
index 0000000..be5beaa
--- /dev/null
+++ b/bin/mdtf
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# mdtf - markdown table formater
+
+awk -F '|' '
+NR == 1 { n = NF-2 }
+{ for (j = 1; j < n+2; j++) cell[NR,j] = $(j+1) }
+END {
+	for (j = 1; j < n+2;  j++) {
+		max = 1
+		for (i = 1; i <= NR; i++) {
+			l = length(cell[i,j])
+			max = l > max ? l : max
+		}
+		for (i = 1; i <= NR; i++) {
+			p = substr(cell[i,j], 1, 1)
+			line[i] = line[i] FS cell[i,j] fill(max-length(cell[i,j]), p)
+		}
+	}
+	for (i = 1; i <= NR; i++) print line[i]
+}
+func fill(n, p,  i, s) { for (i = 0; i < n; i++) s = s p; return s }
+'