Re: lisp file to modify contents of project

["Andreas Röhler" <andreas.roehler@easy-emacs.de>]

Am 11.11.2011 10:49, schrieb David Belohrad:
> Dear All,
>
> i'm not very experienced with elisp/emacs so any help here appreciated.
>
> Imagine that I have VHDL project consisting of may VHDL files, like e.g.
> this one:
>
> ----------------------------------------------------------------
> library ieee;
> use ieee.std_logic_1164.all;
> use ieee.numeric_std.all;
> use work.Types.all;
> use work.bunch_storage.all;
>
> --! @brief bunch selection memory
> --! @details implements 128x32 memory to store info about all the bunches
> --! selected for the capture acquisition
> entity bunch_selection_memory is
>      port (Clk120MHzxC               : in  std_logic;  --! 120MHz clock
>            Reset120MHzxRN            : in  std_logic;  --! 120MHz synced
> reset
>            NumberOfBunchSlotsxD      : in  positive;  --! number of bunch
> slots derived from current timing and IsLHCTimingxS
>            BSELVmeMemDxD             : in  VLong;  --! 16 bit word input to
> the memory via VME interface
>
> and so on..........
> -------------------------------------------------------------------
>
> this VHDL project is however defined as well in not-only-VHDL-files, but as
> well e.g. mentor modelsim wave.do, containing commands like this one:
>
> -------------------------------------------------------------------
> add wave -noupdate -expand -group dut -format Logic -radix hexadecimal
> /bunch_selection_memory_tb/dut/reset120mhzxrn
> -------------------------------------------------------------------
>
> or quartus setting file, containing settings like this one:
>
> ------------------------------------------------------------------
> set_location_assignment PIN_D11 -to Reset120MHzxRN
> ------------------------------------------------------------------
>
>
>
> Now I came into situation, that I have to rename the Reset120MHzxRN signal
> into something completely different. So I was thinking just make dired of
> VHDL/SETTING/MODELSIM files, and just replace Reset120MHzxRN by another
> string. But I ran into troubles with caseness of the replace. I need that
> in the VHDL and quartus setting file the case stays _exactly_ as is,
> whereas in modelsim file I need to convert it into lowercase and replace
> only lowercase occurence by another lowercase occurence.
>
>
>
> I don't think it is possible to use dired mode for this - except that I do
> all the operation in two steps. Having quite a lot of these signals it is
> not really wise. So I was thinking, whether it is feasible to do some lisp
> code, which will:
>
> list all *.vhd, *.do, *.qsf from the project
> do all the replacements as shown above.
>
>
> is it feasible? the 'thing' i'm bit lost in is how to open make a list of
> files universally (independent of whether win/lin), and how to generate
> another buffer which would tell me what exactly in which file was changed
> ->  something like diff mode
>
>
> any help appreciated....
>
> thanks
> d.
>

Just to send some start which should return a files list - approximately.

Before running edit the default directory, called in code "auspack" - 
same with MY-TERM.

(defun my-replace-start (&optional directory)
   (interactive)
   (let* ((dir (or directory (expand-file-name "~/auspack")))
          erg)
     (setq erg (shell-command-to-string (concat "find " dir " -type f 
-name \"\*.vhf\" -o -type f -name \"\*.do\" -o -type f -name \"\*.qsf\" 
| xargs -0 -e grep -nH -e \"MY-TERM\"")))
     (when (interactive-p) (message "%s" erg))
     erg))

Once the files list ready,  something like that

(dolist (ele liste)
   (find-file ele)
   (goto-char (point-min))
   (while (re-search-forward "MY-EXPRESSION" nil (quote move) 1)
     (replace-match "MY-REPLACE"))
     (write-region...

HTH

Andreas