Add inline formatting

This is arguably the ugliest part of the implementation,
but that's because awk isn't built for inline text processing.

1 files changed, 26 insertions, 1 deletions

diff --git a/em b/em
index 13beb29..1b45893 100755
--- a/em
+++ b/em
@@ -52,6 +52,31 @@ function term(line, t) { # t is a local variable
 	printf "<dt>%s</dt><dd>", t
 }
 
+function format(line) {
+	n = split(line, w, "[ 	]")
+	for (i = 0; i <= n; i++) {
+		if (w[i] == "")
+			continue;
+		if (match(w[i], "^`.+`$"))
+			printf "<tt>%s</tt>", substr(w[i], 2, RLENGTH-2)
+		else if (match(w[i], "^\\*.+\\*$"))
+			printf "<i>%s</i>", substr(w[i], 2, RLENGTH-2)
+		else if (match(w[i], "^_.+_$"))
+			printf "<b>%s</b>", substr(w[i], 2, RLENGTH-2)
+		else if (match(w[i], "^`.+`[.,:;?!]$"))
+			printf "<tt>%s</tt>%s", substr(w[i], 2, RLENGTH-3), substr(w[i], RLENGTH)
+		else if (match(w[i], "^\\*.+\\*[.,:;?!]$"))
+			printf "<i>%s</i>%s", substr(w[i], 2, RLENGTH-3), substr(w[i], RLENGTH)
+		else if (match(w[i], "^_.+_[.,:;?!]$"))
+			printf "<b>%s</b>%s", substr(w[i], 2, RLENGTH-3), substr(w[i], RLENGTH)
+		else
+			printf "%s", w[i]
+		if (i < n)
+			printf " "
+	}
+	printf "\n"
+}
+
 BEGIN { expectblock = 1; itemlevel = 1 }
 END { breakblock() }
 
@@ -85,4 +110,4 @@ block = "ol" && /^     [0-9]+\./	{ item(5, "ol", line) }
 block = "ul" && /^      -/		{ item(6, "ul", line) }
 block = "ol" && /^      [0-9]+\./	{ item(6, "ol", line) }
 
-{ print $0 }
+{ format($0) }