View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000895 | luatex | luatex bug | public | 2014-05-04 18:56 | 2015-11-02 17:57 |
| Reporter | Graham Douglas | Assigned To | Hans Hagen | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | closed | Resolution | won't fix | ||
| Target Version | maybe never (> v 1) | ||||
| Summary | 0000895: Crash when font id is incorrectly passed in as -1 | ||||
| Description | Hi All This is "user error" and (perhaps a bug too) I encountered a "crash" caused by some Lua code I had written to build a TeX box from a set of glyph nodes. I had (somehow!) accidentally assigned the value of -1 the font id of glyph nodes which resulted in a crash via a failed call to node.hpack(...). Clearly, a silly mistake on my part but I though I would mention here that it might be useful to trap this and give an informative error message "Invalid font id (value) " or something like that. I traced the problem to the function charinfo *char_info(internal_font_number f, int c) contained in texfont.w The value of f (internal_font_number) was passed in as -1, which caused a crash in the line: proper_char_index(c)) This is #defined as #define proper_char_index(c) (c<=font_ec(f) && c>=font_bc(f)) Best Graham | ||||
| Steps To Reproduce | there are many more invalid values that can be added to fields an dehcking them all makes no sense (add much runtime esp for fields that are used a lot at the lua end) .. needs thinking | ||||
| Tags | No tags attached. | ||||
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users can assign all kind of (temporary) values to nodes including (temporary) invalid ones and checking all of that everywhere add too much overhead .. those who mess with nodes should know what they're doing anyway |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-05-04 18:56 | Graham Douglas | New Issue | |
| 2015-03-21 15:12 | Hans Hagen | Assigned To | => Hans Hagen |
| 2015-03-21 15:12 | Hans Hagen | Status | new => assigned |
| 2015-10-22 11:11 | Hans Hagen | Severity | crash => minor |
| 2015-10-22 11:11 | Hans Hagen | OS | Windows 7 => |
| 2015-10-22 11:11 | Hans Hagen | OS Version | Ultimate (64 b => |
| 2015-10-22 11:11 | Hans Hagen | Platform | Windows => |
| 2015-10-23 09:13 | Hans Hagen | Target Version | => maybe never (> v 1) |
| 2015-10-23 09:13 | Hans Hagen | Steps to Reproduce Updated | |
| 2015-11-02 17:57 | Hans Hagen | Note Added: 0001497 | |
| 2015-11-02 17:57 | Hans Hagen | Status | assigned => closed |
| 2015-11-02 17:57 | Hans Hagen | Resolution | open => won't fix |
