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Catch expression evaluation errors in line/column highlighters

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This commit is contained in:
Maxime Coste 2015-11-09 08:42:40 +00:00
parent 12abb54a88
commit a2d78941ba
1 changed files with 24 additions and 4 deletions
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28
src/highlighters.cc
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@ -478,14 +478,24 @@ HighlighterAndId create_line_highlighter(HighlighterParameters params)
throw runtime_error("wrong parameter count");
String facespec = params[1];
String option_name = params[0];
String line_expr = params[0];
get_face(facespec); // validate facespec
auto func = [=](const Context& context, HighlightFlags flags,
DisplayBuffer& display_buffer, BufferRange)
{
const LineCount line = str_to_int_ifp(expand(option_name, context)).value_or(0) - 1;
LineCount line = -1;
try
{
line = str_to_int_ifp(expand(line_expr, context)).value_or(0) - 1;
}
catch (runtime_error& err)
{
write_to_debug_buffer(
format("Error evaluating highlight line expression: {}", err.what()));
}
if (line < 0)
return;
@ -520,14 +530,24 @@ HighlighterAndId create_column_highlighter(HighlighterParameters params)
throw runtime_error("wrong parameter count");
String facespec = params[1];
String option_name = params[0];
String col_expr = params[0];
get_face(facespec); // validate facespec
auto func = [=](const Context& context, HighlightFlags flags,
DisplayBuffer& display_buffer, BufferRange)
{
const CharCount column = str_to_int_ifp(expand(option_name, context)).value_or(0) - 1;
CharCount column = -1;
try
{
column = str_to_int_ifp(expand(col_expr, context)).value_or(0) - 1;
}
catch (runtime_error& err)
{
write_to_debug_buffer(
format("Error evaluating highlight column expression: {}", err.what()));
}
if (column < 0)
return;