Add section on EDSLs.

[matthijs/master-project/report.git] / pret-lam.lua

diff --git a/pret-lam.lua b/pret-lam.lua
index 86d7272c4f65615276747be84e1b0c39f6ef236f..3cc01af4ec20358b0bfe064410254e9e1be64160 100644 (file)
--- a/pret-lam.lua
+++ b/pret-lam.lua
@@ -17,15 +17,19 @@ local colors = {
 
 -- Symbols that should have a different representation
 local symbols = {
-    [' '] = {repr = '\\obs '},
+    -- Note, the space we replace with is a Unicode non-breaking space
+    -- (U+00A0).
+    [' '] = {repr = ' '},
     ['_'] = {repr = '\\_'},
-    ['->'] = {repr = '\\rightarrow'},
+    ['->'] = {repr = '→'},
+    ['=>'] = {repr = '⇒'},
     -- The default * sits very high above the baseline, \ast (u+2217) looks
     -- better.
     ['*'] = {repr = '\\ast'},
     ['~'] = {repr = '\\HDLine[width=.20 * \\the\\textwidth]'},
     ['|'] = {repr = '\\char' .. utf.byte('|')},
-    ['$'] = {repr = '\\char' .. utf.byte('$')},
+    -- Use ▶ from our roman font, since Iwona doesn't have the glyph
+    ['▶'] = {repr = '{\\rm{}▶}'},
 }
 
 -- Keywords that should be bold
@@ -105,7 +109,7 @@ local function do_subscripts(word)
             submatches[#submatches+1] = "^(" .. base .. ")([%a%d])$"
             -- Seconde, the base with a longer prefix that includes at least
             -- one of +-, (to catch things like ri+1, but not return).
-            submatches[#submatches+1] = "^(" .. base .. ")([%a%d]*[%-%+%,]+[%a%d%-%+%,]*)$"
+            submatches[#submatches+1] = "^(" .. base .. ")([%a%d]*[%-%+,]+[%a%d%-%+,]*)$"
         end
     end
     return word
@@ -193,7 +197,7 @@ function vis.begin_of_display()
     if in_block == 0 then
         -- Initially allow subscripts using _ or just appending a number (later,
         -- we will add extra patterns here.
-        submatches = {"^(%a*)_([%a%d,]+)$", "^(%a+)([%d,]+)$"}
+        submatches = {"^(%a*)_([%a%d,]+)$", "^(%a+)(%d[%d,]+)$"}
         -- This stores all the bases we've encountered so far (to prevent
         -- duplicates). For each of them there will be a pattern in submatches
         -- above.