I'm trying to create a syntax file for a file containing fixed-width
records [1], so that whenever I edit a file, the records are highlighted so
that each field is easily distinguishable by color.
My file looks like this:
A000000001IMFOO23456
C000000002IMFOO23456
Z000000003IMFOO23456
The file has several record types. A record type is declared by the first
character of the line i.e. A, C, Z, etc. The lines are 1464 characters
long (!) so I included just the start of them for brevity. Each record
contains different elements, i.e. an A record has an element from position
2 through 10, 11 through 20, etc., but a C Record has elements from 2
through 10 and 11 through 24. So, the syntax file has to account for the
first character of each line.
I'm starting on the A records, and here's what I have so far:
:syntax region ARecord_OriginatorID start="^A" end=".{20}"
:syntax region ARecord_RecordCount start="^A" end=".{10}"
:syntax match ARecord_RecordType "^A" oneline
:hi ARecord_RecordOriginatorID ctermfg=yellow
:hi ARecord_RecordCount ctermfg=red
:hi ARecord_RecordType ctermfg=blue
However, this results in only the first character (i.e. "A") being blue.
My goal is that the A is blue, the next nine characters at positions 2
through 10 are red, and the next 10 characters are yellow.
Any help on this would be appreciated. I feel like I'm missing something
fundamental to syntax patterns, but I'm not sure what. This is my first
attempt at a syntax file of any kind.
Thanks,
Dan
[1] Specifically, a Canadian Payments Association Standard 005 AFT File.
https://www.rbcroyalbank.com/ach/file-451771.pdf
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