fpt and WinFPT Reference Manual - Command-line Commands

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Instructs fpt to accept or to reject a non-alphanumeric character as a legal character within the name of a user-defined symbol (for example, a variable, a COMMON block name or a sub-program name). The character to be accepted or rejected is enclosed in single or double quotes. The available characters are:  #  $  %  &  @  _ and :.

$ and _ (underscore) are accepted by most Fortran dialects, but all of these characters are used by at least one implementation of the language. fpt imposes the following rules for their use:

  1. These characters may not begin a user-defined symbol except the name of a subroutine. A problem arises with implicit typing if this restriction is not made.
  2. If a symbol which contains any of the characters #, %, &, @ or : is referenced in an fpt command, the symbol must be enclosed in quotes.

A difficulty arises with names containing the character : (colon). This is used in sub-program and variable names by Gould-SEL (now Encore) Fortran for the Concept series of computers, which are widely used in real-time simulation. It is not always possible for fpt to distinguish between a range or sub-string specification which contains a colon and a name with an embedded colon. Users are advised to watch for and to suppress spurious errors.

Where to Use this Command

Operating system command line Yes
Configuration file, config.fsp Yes
Specification (fsp) files, *.fsp Yes
Interactively, to FPT> prompt No
Interactive command files No
Embedded in the Fortran code Yes


The characters $ and _ are accepted and the characters #, %, &, @ and : are rejected by default (Note that defaults may be changed in the configuration file).


fpt is run under Windows with the command:

D:\John\Test> fpt "%accept character:':'" encorelib.fsp

The sub-program name M:TDAY is then accepted.

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