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40 lines
488 B
Markdown
40 lines
488 B
Markdown
# Syntactic Sugar
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Ex:
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RegEx : `/a+|[0-3]/`
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SRegEx: `a.repeat(1-) | set(0-3)`
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`A+` === `AA*` === `A.repeat(1-)` === `AA.repeat(0-)`
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`A?` === `A|ε` === `A.repeat(0-1)`
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`[0-9]` === `0|1|2|3|4|5|6|7|8|9` === `set(0-9)`
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# NFA Optimizations
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Ex:
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RegEx : `/[0-2]+/`
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SRegEx: `set(0-2).repeat(1-)`
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Machine (Optimized):
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```
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|<-epsi-<|
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->o -0-> (o)
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\--1-->/
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\-2->/
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```
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A* (Optimized)
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```
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->o -A--> (o)
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\-epsi->/
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```
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`[characters]`
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```
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->o --<num>--> (o)
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..........
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```
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