regex helper from pdf417 PR

HELPER_REGEX.md

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+# Helper Regular Expressions
+
+Run in the order, with caution
+
+## Arrays
+
+Search: `int\[\]`
+Replace: `Int32Array`
+
+## Props
+
+Search: `((private|public|static)( static)?) final ([\w\[\]]+) (\w+)( =|;)`
+Replace: `$1 /*final*/ $5: $4$6`
+
+## forof
+
+Search: `for\s*\((.*) (\w+) :`
+Replace: `for (const $2/*: $1*/ of`
+
+## for
+
+Search: `for\s*\((\w+) (\w+)`
+Replace: `for (let $2 /*$1*/`
+
+## Number Casts
+
+Search: `\((float|int|byte|short|long|char)\)\s*(\w+)`
+Replace: `<$1>$2`
+
+## Function types
+
+Search: `((private|public|static)( static)?) ([\w\[\]]+) (\w+\(.*?\))`
+Replace: `$1 $5: $4`
+
+### No declared accessors
+
+⚠️ Be careful. ⚠️
+
+Search: `([\w\[\]]+) (\w+\(.*?\))`
+Replace: `$2: $1`
+
+## Variable declarations
+
+Search: `^(\s*)([\w\[\]]+) (\w+) =`
+Replace: `$1let $3: $2 =`
+
+⚠️ Be careful️. ⚠️
+
+Search: `^(\s*)([\w\[\]]+) (\w+);`
+Replace: `$1let $3: $2;`
+
+## Params (single)
+
+Search: `\((([\w\[\]]+) (\w+)(\,)?)+\)`
+Replace: `($3: $2$4)`
+
+## Params (multiple)
+
+⚠️ Be careful️. ⚠️
+
+Search: `(\w+) (\w+)(, |\))`
+Replace: `$2: $1$3`
+
+## Numeric types
+
+Search: `: (byte|short|int|float|long)(\[\])?`
+Replace: `: /*$1$2*/ number$2`
+
+## numeric arrays
+
+Search: `new int\[(\w+)\]`
+Replace: `new Int32Array($1)`
+Replace: `new Array($1)`
+
+## Equals comparision
+
+Search: `(!=|==)`
+Replace: `$1=`