URL:
<https://savannah.gnu.org/bugs/?61174>
Summary: [libgroff] misleading line numbers in some device
description file diagnostics
Project: GNU troff
Submitted by: gbranden
Submitted on: Fri 17 Sep 2021 06:17:19 AM UTC
Category: Core
Severity: 3 - Normal
Item Group: Warning/Suspicious behaviour
Status: In Progress
Privacy: Public
Assigned to: gbranden
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
_______________________________________________________
Details:
A spurious line number is reported for bad `sizescale`, `hor`, and `vert`
directives in the DESC file.
For example, we can take the devps DESC file and make its `sizescale` value
negative.
$ nl build/font/devps/DESC
1 res 72000
2 hor 1
3 vert 1
4 sizescale -1000
5 unitwidth 1000
6 sizes 1000-10000000 0
7 styles R I B BI
8 family T
9 fonts 9 0 0 0 0 0 SS S ZD ZDR
10 tcommand
11 postpro grops
12 broken 0
13 papersize letter
14 print lpr
$ GROFF_FONT_PATH=./build/font groff
groff:./build/font/devps/DESC:14: bad 'sizescale' value
groff: fatal error: invalid device 'ps'
Because `font::load_desc()` reads the whole file before validating these
values, it associates a misleading line number with the diagnostic messages.
_______________________________________________________
Reply to this item at:
<https://savannah.gnu.org/bugs/?61174>
_______________________________________________
Message sent via Savannah
https://savannah.gnu.org/
