Blueprint

• ...
  The content between ... is the structure of the house.
  • ${}
    The content wrapped by ${hole} describes a wall hole. The holes will be filled by fitting bricks. (The ${hole} will be replaced by the contents of the brick.) You can refer to Example A to understand the usage.
  • $<>
    The content wrapped by $<wall> describes a wall. $<wall> must wrap at least one ${hole}. If all ${hole} among them are not filled with any bricks, the $<wall> will be destroyed. You can refer to Example B to understand the usage.
• ---
  The content between --- describes the fitting relationship between holes and bricks.
  • The first row specifies a separator for splitting the holes and bricks.
  • The second row lists the holes wrapped by ${}.
  • The subsequent rows are the fitting relationship of bricks to holes. If you want to build more houses, then you should make more bricks arrays.

Blueprint

...
${a} == ${b}
...
---
,
a,b
1,2
3,4
---

Generated content

1 == 2
3 == 4

Blueprint

...
${a} $<== ${b}>
...
---
,
a,b
1,2
3
---

Generated content

1 == 2
3