How to configure a sublime file_regex for *.bas-files

Question

I'm trying to configure a Build System for Freebasic files in Sublime Text3 and want to set the file_regex property to handle the error messages

{
"selector": "source.bas",
"cmd": ["fbc.exe", "$file"],
"file_regex": "..."
}

all i have is something like this, but it doesn't work:

"file_regex": "^[A-Za-z0-9\\\/:]*\\(.*)\(([0-9]*)\("

i want to parse this error messages:

C:\projekte\privat\freebasic\test.bas(24) error 3: Expected End-of-Line, found ...
C:\projekte\privat\freebasic\test.bas(25) error 41: Variable not declared, This ....
C:\projekte\privat\freebasic\test.bas(26) error 9: Expected expression, found ...
C:\projekte\privat\freebasic\test.bas(27) error 9: Expected expression, found ...

to make my question more precise. I have to fumble apart the filename with extension in a first group and the linenumber in the second group.

could you please help me to find the correct file_regex?!

Answer 1

This regex will do:

^([a-zA-Z]:(?:\\[^\\]+)*)\((\d+)\) error

See the regex demo:

Explanation:

• ^ - start of a line/string
• ([a-zA-Z]:(?:\\[^\\]+)*) - Group 1 (filename):
  • [a-zA-Z]: - a letter followed with :
  • (?:\\[^\\]+)* - a literal backslash \ followed with 1+ characters other than a \.
• \( - opening parenthesis
• (\d+) - 1+ digits (Group 2, line number)
• \) - a closing parenthesis
• error - matches a word "error" (to anchor the search)

NOTE: you might need to double escape \ backslashes to make the pattern work (e.g. ^([a-zA-Z]:(?:\\\\[^\\\\]+)*)\\((\\d+)\\) error).

Answer 2

There were two errors in your regex :

\/ is not a valid escape sequence, the slash do not need to be escaped

the final escaped parenthesis was opening \( instead of closing \). Try with this one :

^[A-Za-z0-9\\/:]*\\(.*)\(([0-9]*)\)