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Merge branch 'main' of github.com:sasjs/core into main

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Allan
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README.md
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# Macro Core
Much quality. Many standards. The **Macro Core** library exists to save time and development effort! Herein ye shall find a veritable host of MIT-licenced, production quality SAS macros. These are a mix of tools, utilities, functions and code generators that are useful in the context of Application Development on the SAS platform (eg https://datacontroller.io). [Contributions](https://github.com/sasjs/core/blob/main/CONTRIBUTING.md) are welcomed.
Much quality. Many standards. The **Macro Core** library exists to save time and development effort! Herein ye shall find a veritable host of MIT-licenced, production quality SAS macros. These are a mix of tools, utilities, functions and code generators that are useful in the context of [Application Development](https://sasapps.io) on the SAS platform (eg https://datacontroller.io). [Contributions](https://github.com/sasjs/core/blob/main/CONTRIBUTING.md) are welcomed.
You can download and compile them all in just two lines of SAS code:
@@ -9,7 +9,7 @@ filename mc url "https://raw.githubusercontent.com/sasjs/core/main/all.sas";
%inc mc;
```
Documentation: https://sasjs.github.io/core.github.io/files.html
Documentation: https://core.sasjs.io
# Components
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## File Properties
- filenames much match macro names
- filenames must be lowercase
- filenames must be lowercase, without spaces
- macro names must be lowercase
- one macro per file
- prefixes:
@@ -99,7 +99,7 @@ filename mc url "https://raw.githubusercontent.com/sasjs/core/main/all.sas";
- unix style line endings (lf)
- individual lines should be no more than 80 characters long
- UTF-8
- no trailing white space
## Header Properties
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## Coding Standards
- Indentation = 2 spaces. No tabs!
- no trailing white space
- no invisible characters, other than spaces. If invisibles are needed, use hex literals.
- Macro variables should not have the trailing dot (`&var` not `&var.`) unless necessary to prevent incorrect resolution
- The closing `%mend;` should not contain the macro name.
- The closing `%mend;` should **not** contain the macro name.
- All macros should be defined with brackets, even if no variables are needed - ie `%macro x();` not `%macro x;`
- Mandatory parameters should be positional, all optional parameters should be keyword (var=) style.
- All dataset references must be 2 level (eg `work.blah`, not `blah`). This is to avoid contention when options [DATASTMTCHK](https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000279064.htm)=ALLKEYWORDS is in effect.
- Avoid naming collisions! All macro variables should be local scope. Use system generated work tables where possible - eg `data ; set sashelp.class; run; data &output; set &syslast; run;`
- If you have a long-running SQL query, the use of a `quit;` statement is recommended in order to benefit from the timing statistics.
- The use of `quit;` for `proc sql` is optional unless you are looking to benefit from the timing statistics.
# General Notes