31.13.2.5 Variables for Fortran Indentation

Several additional variables control how Fortran indentation works:

fortran-do-indent

Extra indentation within each level of ‘do’ statement (default 3).

fortran-if-indent

Extra indentation within each level of ‘if’, ‘select case’, or ‘where’ statements (default 3).

fortran-structure-indent

Extra indentation within each level of ‘structure’, ‘union’, ‘map’, or ‘interface’ statements (default 3).

fortran-continuation-indent

Extra indentation for bodies of continuation lines (default 5).

fortran-check-all-num-for-matching-do

In Fortran77, a numbered ‘do’ statement is ended by any statement with a matching line number. It is common (but not compulsory) to use a ‘continue’ statement for this purpose. If this variable has a non-nil value, indenting any numbered statement must check for a ‘do’ that ends there. If you always end ‘do’ statements with a ‘continue’ line (or if you use the more modern ‘enddo’), then you can speed up indentation by setting this variable to nil. The default is nil.

fortran-blink-matching-if

If this is t, indenting an ‘endif’ (or ‘enddo’ statement moves the cursor momentarily to the matching ‘if’ (or ‘do’) statement to show where it is. The default is nil.

fortran-minimum-statement-indent-fixed

Minimum indentation for Fortran statements when using fixed format continuation line style. Statement bodies are never indented less than this much. The default is 6.

fortran-minimum-statement-indent-tab

Minimum indentation for Fortran statements for tab format continuation line style. Statement bodies are never indented less than this much. The default is 8.

The variables controlling the indentation of comments are described in the following section.