renlinear: add tests for sbs beginning and ending with zero-width placeholders

Author: terryburton

tests/ps_tests/renlinear.ps.test

@@ -213,24 +213,139 @@
     72 1.5 0 1
 ] debugIsEqual
 
+%
+% Leading zero-width bar placeholder: sbs begins with 0 (idiom for leading space)
+%
+{
+    0 0 moveto
+    <<
+        /ren /renlinear
+        /sbs [0 1 1 1 1 1 1]
+        /bhs [1 1 1 1 1 1 1]
+        /bbs [0 0 0 0 0 0 0]
+        /inkspread 0
+        /opt << /debugbars true >>
+    >> renlinear
+} [
+    72 1.5 0 1
+    72 3.5 0 1
+    72 5.5 0 1
+] debugIsEqual
+
+%
+% Leading zero-width bar placeholder with barratio: placeholder stays zero-width
+%
+{
+    0 0 moveto
+    <<
+        /ren /renlinear
+        /sbs [0 1 1 1 1 1 1]
+        /bhs [1 1 1 1 1 1 1]
+        /bbs [0 0 0 0 0 0 0]
+        /inkspread 0
+        /barratio 2
+        /opt << /debugbars true >>
+    >> renlinear
+} [
+    72 1.5 0 1
+    72 3.5 0 1
+    72 5.5 0 1
+] debugIsEqual
+
+%
+% Trailing zero-width bar placeholder: sbs ends with 0 (idiom for odd-length sbs whose semantic last element is a space)
+%
+{
+    0 0 moveto
+    <<
+        /ren /renlinear
+        /sbs [1 1 1 1 1 1 0]
+        /bhs [1 1 1 1 1 1 1]
+        /bbs [0 0 0 0 0 0 0]
+        /inkspread 0
+        /opt << /debugbars true >>
+    >> renlinear
+} [
+    72 0.5 0 1
+    72 2.5 0 1
+    72 4.5 0 1
+] debugIsEqual
+
+%
+% Trailing zero-width bar placeholder with barratio
+%
+{
+    0 0 moveto
+    <<
+        /ren /renlinear
+        /sbs [1 1 1 1 1 1 0]
+        /bhs [1 1 1 1 1 1 1]
+        /bbs [0 0 0 0 0 0 0]
+        /inkspread 0
+        /barratio 2
+        /opt << /debugbars true >>
+    >> renlinear
+} [
+    72 0.5 0 1
+    72 2.5 0 1
+    72 4.5 0 1
+] debugIsEqual
+
+%
+% Leading and trailing zero-width bar placeholders combined
+%
+{
+    0 0 moveto
+    <<
+        /ren /renlinear
+        /sbs [0 1 1 1 1 1 0]
+        /bhs [1 1 1 1 1 1 1]
+        /bbs [0 0 0 0 0 0 0]
+        /inkspread 0
+        /opt << /debugbars true >>
+    >> renlinear
+} [
+    72 1.5 0 1
+    72 3.5 0 1
+] debugIsEqual
+
+%
+% Leading and trailing zero-width bar placeholders with barratio
+%
+{
+    0 0 moveto
+    <<
+        /ren /renlinear
+        /sbs [0 1 1 1 1 1 0]
+        /bhs [1 1 1 1 1 1 1]
+        /bbs [0 0 0 0 0 0 0]
+        /inkspread 0
+        /barratio 2
+        /opt << /debugbars true >>
+    >> renlinear
+} [
+    72 1.5 0 1
+    72 3.5 0 1
+] debugIsEqual
+
 %
 % DataBar Omnidirectional
 %
 {
     0 0 moveto
     <<
         /ren /renlinear
-        /sbs [1 5 1 1 1 5 1 1 1 2 3 8 1 1 4 3 1 1 1 1 2 2 3 4 1 1 2 2 1 1 1 1 4 7 2 5 1 2 1 2 1 1 3 1 1]
-        /bhs [0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5]
-        /bbs [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
+        /sbs [0 1 1 5 1 1 1 5 1 1 1 2 3 8 1 1 4 3 1 1 1 1 2 2 3 4 1 1 2 2 1 1 1 1 4 7 2 5 1 2 1 2 1 1 3 1 1]
+        /bhs [0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5]
+        /bbs [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
         /inkspread 0
         /opt << /debugbars true >>
     >> renlinear
 } [
-    36 0.5 0 1    36 6.5 0 1    36 8.5 0 1    36 14.5 0 1   36 16.5 0 1   36 20.5 0 3
-    36 30.5 0 1   36 34 0 4     36 39.5 0 1   36 41.5 0 1   36 44 0 2     36 48.5 0 3
-    36 54.5 0 1   36 57 0 2     36 60.5 0 1   36 62.5 0 1   36 66 0 4     36 76 0 2
-    36 82.5 0 1   36 85.5 0 1   36 88.5 0 1   36 91.5 0 3   36 94.5 0 1
+    36 1.5 0 1    36 7.5 0 1    36 9.5 0 1    36 15.5 0 1   36 17.5 0 1   36 21.5 0 3
+    36 31.5 0 1   36 35 0 4     36 40.5 0 1   36 42.5 0 1   36 45 0 2     36 49.5 0 3
+    36 55.5 0 1   36 58 0 2     36 61.5 0 1   36 63.5 0 1   36 67 0 4     36 77 0 2
+    36 83.5 0 1   36 86.5 0 1   36 89.5 0 1   36 92.5 0 3   36 95.5 0 1
 ] debugIsEqual