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Sanitize messages from python #5589

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Merged
iorsh merged 2 commits into from
Jul 21, 2025
Merged

Sanitize messages from python #5589

iorsh merged 2 commits into from
Jul 21, 2025
+94 −6

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@Caellian
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@Caellian Caellian commented Jul 21, 2025 •
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Previously passing strings containing '%' would cause fontforge to crash, this commit makes fontforge emit a warning instead and escape those characters.

Closes #45.

Testing

Tested with:

import fontforge

fontforge.logWarning("This should be just fine as always...")
fontforge.logWarning("Ooops, I forgot to escape % so there might be trouble")
fontforge.logWarning("This case might be a bit different:%")
fontforge.logWarning("A % string with % very%many % unescaped %%% formats")

Output:

This should be just fine as always...
logError called with a string containing unescaped format character(s): 'Ooops, I forgot to escape % so there might be trouble'
Ooops, I forgot to escape % so there might be trouble
logError called with a string containing unescaped format character(s): 'This case might be a bit different:%'
This case might be a bit different:%
logError called with a string containing unescaped format character(s): 'A % string with % very%many % unescaped %%% formats'
A % string with % very%many % unescaped %% formats

Type of change

  • Bug fix
  • Non-breaking change

Caellian
Caellian commented Jul 21, 2025
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Caellian
Caellian commented Jul 21, 2025
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Caellian
Caellian commented Jul 21, 2025
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Caellian commented Jul 21, 2025

cc @skef

@Caellian
Sanitize messages from python
7861f85 
Previously passing strings containing '%' would cause fontforge to
crash, this commit makes fontforge emit a warning instead and escape
those characters.

Signed-off-by: Tin Švagelj <tin.svagelj@live.com>
@Caellian Caellian force-pushed the fix/sanitize-python-printing branch from e9974af to 7861f85 Compare July 21, 2025 09:42
iorsh
iorsh reviewed Jul 21, 2025
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iorsh commented Jul 21, 2025

Testing

Tested with:

import fontforge

fontforge.logWarning("This should be just fine as always...")
fontforge.logWarning("Ooops, I forgot to escape % so there might be trouble")
fontforge.logWarning("This case might be a bit different:%")
fontforge.logWarning("A % string with % very%many % unescaped %%% formats")

[Optional] Please add this code snippet to a unit test (see test*.py examples in tests)

@Caellian Caellian force-pushed the fix/sanitize-python-printing branch 2 times, most recently from 17ba00b to a4326f5 Compare July 21, 2025 19:54
iorsh
iorsh reviewed Jul 21, 2025
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@Caellian Caellian force-pushed the fix/sanitize-python-printing branch from a4326f5 to 8bf7659 Compare July 21, 2025 20:14
@Caellian
Apply requested improvements
8f95335 
Signed-off-by: Tin Švagelj <tin.svagelj@live.com>
@Caellian Caellian force-pushed the fix/sanitize-python-printing branch from 8bf7659 to 8f95335 Compare July 21, 2025 20:15
@Caellian Caellian requested a review from iorsh July 21, 2025 20:16
iorsh
iorsh approved these changes Jul 21, 2025
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Looks good to me

@iorsh iorsh merged commit aaecad7 into fontforge:master Jul 21, 2025
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Interpolation crash

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@Caellian @iorsh