syntax errors report wrong position information

Question

syntax errors report wrong position information

rogpeppe opened this issue 7 years ago · 3 comments

When gogrep reports a syntax error in the match expression, it uses the wrong
position information because it reports the positions after $ substitutions have been made.

Answer 1 · 2017-09-20T13:17:14.000Z

Can you give a short example?

Answer 2 · 2017-09-20T18:35:42.000Z

For example:

% gogrep 'print($x, }'
cannot parse expr: 1:21: expected operand, found '}' (and 1 more errors)

Column 21 is beyond the end of the expression we passed in.

Answer 3 · 2017-09-20T19:35:42.000Z

This is a bit tricky - we currently have logic to offset the templates, but this will require subtractions at certain line and column positions.