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The `AHGverCalc` macro is designed to incrementally or decrementally modify a part of a version string. It takes two parameters: `version` (a character string typically in 'X.Y' format) and `offset` (an integer). The macro extracts the first and second parts of the `version` string, applies the `offset` to the second (minor) part, and ensures that the result is not less than 1. It then returns the new formatted version string. This macro is useful for dynamic version management scenarios.

Data Analysis

Type : CREATION_INTERNE

The macro does not consume data from external sources or SAS libraries. It operates only on the parameters passed to it (`version` and `offset`), which are internal to the macro's execution.

1 Code Block

MACRO DEFINITION

Explanation :
This block defines the SAS macro `AHGverCalc`. It starts with a conditional check to ensure that if `offset` is 0, it is treated as -0 for operational consistency. Local variables `left` and `right` are declared. The macro uses `%scan` to extract the first and second parts of the `version` string. `%eval` is used to apply the `offset` to the `right` part. A check is performed to ensure the `right` value does not fall below 1. Finally, it returns a new string combining `left`, a period, and the new `right` value.

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1	%macro AHGverCalc(version,offset);
2	%IF &offset=0 %THEN %let offset=-0;
3	%local left right;
4	%let left=%scan(&version,1);
5	%let right=%eval(%scan(&version,2)&offset);
6	%IF &right <=0 %THEN %let right=1;
7	&left..&right
8	%mend;

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