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Search and Replace+append a text in python

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# 1  
Old 11-18-2015
Display Search and Replace+append a text in python
Hello all,
I have a verilog file as following (part of it):
old.v:

Code:
bw_r_rf16x32  AUTO_TEMPLATE (
1957 //             .rst_tri_en           (mem_write_disable),
1958              .rclk             (clk),
1959              .bit_wen          (dva_bit_wr_en_e[15:0]),
1960              .din                (dva_din_e), 
1961              .dout               (dva_vld_m[3:0]),
1962              .rd_adr1            (exu_lsu_early_va_e[10:4]),
1963              .rd_adr1_sel        (1'b1),
1964              .rd_adr2            (7'b0),
1965              .rd_en              (ifu_lsu_ld_inst_e),
1966              .reset_l            (arst_l),
1967              //.sehold             (),
1968              .wr_adr             (dva_wr_adr_e[10:6]),
1969              .wr_en              (lsu_dtagv_wr_vld_e));

+

I want to replace the ".bit_wen" and corresponding "dva_bit_wr_en_e" as follows:
Code:
.bit_wen15       (dva_bit_wr_en_e[15]),
.bit_wen14        (dva_bit_wr_en_e[14]),
.bit_wen13        (dva_bit_wr_en_e[13]),
.
.
.
.
.bit_wen0         (dva_bit_wr_en_e[0])

basically right now I am manually typing in these in vim, and there are a bunch of these type of port mapping (for example rd_adr1, wr_adr etc) issues that I have to break down bit by bit.

Any script in Python/Awk would help my life tremendously..

Any help?
# 2  
Old 11-18-2015
Try something like:
Code:
awk '$2==".bit_wen"{split($3,F,/[:[]/); sub($2,"&" F[2]); sub(/:[^]]/,x)}1'  file

or:
Code:
sed 's/\(\.bit_wen\)\(.*\[\)\([^:]*\):.*\]/\1\3\2\3]/' file

Last edited by Scrutinizer; 11-19-2015 at 01:57 PM.. Reason: Flipped [ and : in the bracket expression or some awks will bork. Thanks aia
# 3  
Old 11-18-2015
Wouldn't this small adaption of Scrutinizer's suggestion fit the request better?
Code:
awk '
$2==".bit_wen"  {split($3,F,/[[:]/)
                 T=$2

                 for (i=F[2]; i>=0; i--)        {$2 = T i
                                                 $3 = F[1] "[" i "]),"
                                                 print
                                                }
                 next
                }
1
' OFS="\t" file
bw_r_rf16x32  AUTO_TEMPLATE (
1957 //             .rst_tri_en           (mem_write_disable),
1958              .rclk             (clk),
1959    .bit_wen15    (dva_bit_wr_en_e[15]),
1959    .bit_wen14    (dva_bit_wr_en_e[14]),
1959    .bit_wen13    (dva_bit_wr_en_e[13]),
1959    .bit_wen12    (dva_bit_wr_en_e[12]),
1959    .bit_wen11    (dva_bit_wr_en_e[11]),
1959    .bit_wen10    (dva_bit_wr_en_e[10]),
1959    .bit_wen9     (dva_bit_wr_en_e[9]),
1959    .bit_wen8     (dva_bit_wr_en_e[8]),
1959    .bit_wen7     (dva_bit_wr_en_e[7]),
1959    .bit_wen6     (dva_bit_wr_en_e[6]),
1959    .bit_wen5     (dva_bit_wr_en_e[5]),
1959    .bit_wen4     (dva_bit_wr_en_e[4]),
1959    .bit_wen3     (dva_bit_wr_en_e[3]),
1959    .bit_wen2     (dva_bit_wr_en_e[2]),
1959    .bit_wen1     (dva_bit_wr_en_e[1]),
1959    .bit_wen0     (dva_bit_wr_en_e[0]),
1960              .din                (dva_din_e), 
1961              .dout               (dva_vld_m[3:0]),
.
.
.

This User Gave Thanks to RudiC For This Post:
Zam_1234
# 4  
Old 11-18-2015
I have attached the "lsu.v" file. I am trying to change stuff inside the block "bw_r_dcd" (line: 1919):

Here I need to change ".dcache_rdata_wb" to ".dcache_rdata_wb63", ".dcache_rdata_wb62",......".dcache_rdata_wb0". Correspondingly, "dcache_rdta_wb[63:0]" needs to be changed to "dcache_rdata_wb[63]", "dcache_rdata_wb[62]" ..... "dcache_rdata_wb[0]".

Once I do this, then I need to take similar approach in the block for ".dcache_rdata_msb_w0_m", ".dcache_rdata_msb_w1_m" etc...

I wrote the script as suggested by RudiC as follows:
Code:
  1 #!/usr/bin/awk -f
  2 $1==".dcache_rdata_wb" {split($2,F,/[:]/)
  3                         T=$1
  4 
  5                         for (i=F[2]; i>=0; i--)
  6                                 {$2 = Ti
  7                                 $3 = F[1] "["i"]),"
  8 
  9                                 }
 10                         next
 11 
 12 }
 13 
 14 OFS="\t" file
~

Still didn't work. Apparently it deleted the line corresponding to ".dcache_rdata_wb" from the file.

Help...
lsu.txt (321.7 KB) 
# 5  
Old 11-18-2015
I got the script working. Below is the line of code:
Code:
 awk ' $1==".dcache_rdata_wb" {split ($2, F,"["); split (F[2], Y, ":"); Z=$1; for(i=Y[1]; i>=0; i--) {$1 = Z i; $2 = F[1] "["i"]),"; print $1 "\t" $2}}' lsu.v

How to replace the text in the file to get this output inplace of the old string?

Thanks
# 6  
Old 11-19-2015
Use redirection and then copy the output back:
Code:
awk '...' file >TMP && mv TMP file

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