All Fweb commands begin with the character ‘@’. It is recommended that these begin in column 1 if possible. This is required in some cases [e.g., the ‘@x’, ‘@y’, and ‘@z’ in change files (see Change files), or column-oriented Fortran-77 processing].
Some of these control codes may be used anywhere; others begin a new part of the current section. (For a discussion of sections and parts, see Structure.) For a quick summary of the control-code mappings and to see which codes begin new parts, say ‘ftangle -@’. See -AT.
Debugging commands:
Literal control characters:
Beginning of section:
Beginning of code part:
Control codes b--z:
Conversion to ASCII:
Forward referencing:
Comments:
Special brace:
Index entries:
Control text:
Spacing:
Pseudo (invisible) operators:
Miscellaneous: