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| imperative programming languages | |
| procedural programming languages | |
| programming languages | |
| structured programming languages | |
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Keywords in AA were represented as being underlined, however for the sake of easy typing it was possible to Strop Keywords by placing a " %" sign in front of them, for examplethe keyword endofprogramme could be typed as %end %of %programme or %endofprogrammeThere were no reserved words in the language. In the statement if token=if then result = token, there is both a keyword if and a variable named if.Because of this keyword stropping, it was possible for AA to allow spaces in variable names, such as integer previous value. Spaces were not significant and were removed prior to parsing in a trivial pre-lexing stage called "line reconstruction".What the compiler would see in the above example would be " iftoken=ifthenresult=token".
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