From 8a580c7a0cae271b5fcf5ab938ad1064323efaf6 Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.me.uk>
Date: Wed, 1 Jan 2014 15:20:12 +0000
Subject: Add headings to markdown processing

---
 tkread | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/tkread b/tkread
index b4f9f2e..ce4bac0 100755
--- a/tkread
+++ b/tkread
@@ -29,9 +29,12 @@ set tagnum 0
 set domarkdown 0
 
 set surroundfmt { \
-      {"***" "bold italic"} \
-      {"**" "bold"} \
-      {"*" "italic"} \
+      {"***" "0" "bold italic"} \
+      {"**" "0" "bold"} \
+      {"*" "0" "italic"} \
+      {"===" "0" "italic"} \
+      {"==" "3" "italic"} \
+      {"=" "6" ""} \
      }
 
 package require Tk
@@ -55,7 +58,8 @@ proc markup {widget} {
 
 	foreach fmt $surroundfmt {
 		set searchchar [lindex $fmt 0]
-		set fmtstring [lindex $fmt 1]
+		set fmtsizemod [lindex $fmt 1]
+		set fmtstring [lindex $fmt 2]
 		set searchlen [string length $searchchar]
 		set insection 0
 		set cur ""
@@ -87,7 +91,8 @@ proc markup {widget} {
 			$widget tag add tag_$tagnum markon_$x markoff_$x
 		}
 
-		$widget tag configure tag_$tagnum -font "{$fontfamily} $fontsize $fmtstring"
+		# TODO: change in changeFontSize too if this works
+		$widget tag configure tag_$tagnum -font "{$fontfamily} [expr $fontsize + $fmtsizemod] $fmtstring"
 		incr tagnum
 	}
 }
@@ -102,8 +107,9 @@ proc changeFontSize {change} {
 		set fontsize $newsize
 		.t configure -font "{$fontfamily} $fontsize" -padx [expr $fontsize * 3]
 		for {set x 0} {$x < $tagnum} {incr x} {
-			set fmtstring [lindex [lindex $surroundfmt $x] 1]
-			.t tag configure tag_$x -font "{$fontfamily} $fontsize $fmtstring"
+			set fmtstring [lindex [lindex $surroundfmt $x] 2]
+			set fmtsizemod [lindex [lindex $surroundfmt $x] 1]
+			.t tag configure tag_$x -font "{$fontfamily} [expr $fontsize + $fmtsizemod] $fmtstring"
 		}
 	}
 }
-- 
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