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+--------+-------------------------+-------------------------+--------+--------+
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|000027f0| 6e 73 74 20 65 69 66 2d | 65 78 70 6f 72 74 65 64 |nst eif-|exported|
|00002800| 2d 66 65 61 74 75 72 65 | 20 28 63 6f 6e 63 61 74 |-feature| (concat|
|00002810| 20 22 5c 5c 28 2c 5c 5c | 7c 65 78 70 6f 72 74 5b | "\\(,\\||export[|
|00002820| 20 09 5c 6e 5d 2b 5c 5c | 28 2d 2d 2e 2a 5b 20 09 | .\n]+\\|(--.*[ .|
|00002830| 5c 6e 5d 2b 5c 5c 29 2a | 5c 5c 29 22 20 65 69 66 |\n]+\\)*|\\)" eif|
|00002840| 2d 66 65 61 74 75 72 65 | 2d 6e 61 6d 65 20 22 5c |-feature|-name "\|
|00002850| 5c 28 5b 20 09 5d 2a 7b | 5b 5e 7d 5d 2b 7d 5c 5c |\([ .]*{|[^}]+}\\|
|00002860| 29 3f 22 20 22 5c 5c 28 | 5b 20 09 5d 2a 5b 5c 6e |)?" "\\(|[ .]*[\n|
|00002870| 2c 5d 5c 5c 7c 5b 20 09 | 5d 2b 2d 2d 5c 5c 29 22 |,]\\|[ .|]+--\\)"|
|00002880| 29 20 22 5c 0a 52 65 67 | 65 78 70 20 74 6f 20 6d |) "\.Reg|exp to m|
|00002890| 61 74 63 68 20 74 6f 20 | 61 20 66 65 61 74 75 72 |atch to |a featur|
|000028a0| 65 20 64 65 63 6c 61 72 | 61 74 69 6f 6e 20 69 6e |e declar|ation in|
|000028b0| 20 61 6e 20 65 78 70 6f | 72 74 20 63 6c 61 75 73 | an expo|rt claus|
|000028c0| 65 2e 0a 20 20 45 78 63 | 6c 75 64 65 20 27 72 65 |e..  Exc|lude 're|
|000028d0| 70 65 61 74 20 3c 63 6c | 61 73 73 3e 27 20 70 68 |peat <cl|ass>' ph|
|000028e0| 72 61 73 65 73 2e 20 20 | 46 65 61 74 75 72 65 20 |rases.  |Feature |
|000028f0| 6e 61 6d 65 20 69 73 20 | 67 72 6f 75 70 69 6e 67 |name is |grouping|
|00002900| 20 33 2e 22 29 0a 28 70 | 72 6f 76 69 64 65 20 27 | 3.").(p|rovide '|
|00002910| 62 72 2d 65 69 66 2d 66 | 74 29 0a                |br-eif-f|t).     |
+--------+-------------------------+-------------------------+--------+--------+