76 lines
1.2 KiB
Markdown
76 lines
1.2 KiB
Markdown
# (+97>)3<3+>+5>+2<2(.>)3 (*.bfe)
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A slight syntactic superset of BF.
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Development requirements:
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1. cxxopts -> v2.2.1
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2. antlr4 -> v4
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*HelloWorld.bfe*
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```
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-[-7>+<]>-.-[->+5<]>++.+7..+3.[-3>+<]>-5.--[->+4<]>-.-8.+3.-6.-8.
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```
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## Functions
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1. Interpret bfe(and bf) files
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2. Convert bf/bfe to bf
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3. Convert bf/bfe to C++ (not optimized)
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## Usage
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```sh
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./bfc -h #Help
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./bfc prog.bfe #Execute
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./bfc prog.bfe -a bf #Translate file to bf
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./bfc prog.bfe -a cpp # Translate file to cpp
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```
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## Syntax
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**Basic**
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```bf
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,. IO
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<> Address manipulation
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+- Value manipulation
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[] Looping construct
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```
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**Comments**
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`//` - Single Line
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`/* */` - Multi Line
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**Repeats**
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```
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<symbol><number>
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(<symbols>)<number>
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```
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Eg.
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```
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+65. //prints A
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>
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(+65>)3 //stores AAA
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(<.)3 //prints AAA
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```
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## Setup oddities (dev)
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1. Copy `antlr-4.8-complete.jar` to `./thirdparty/antlr`. (Required only if grammar has to be updated)
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2. Generate parsers to `./libs/generated` or use VSCode with the ANTLR extension.
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## Todo (Tentative)
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- [ ] Grammar
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- [X] Number shorthand
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- [X] Loop statements
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- [ ] Shorthand segments
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- [X] Processing
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- [X] Translate to bf
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- [X] Execute results
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