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Various cleanup and tweaking of backtrace messages

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This commit is contained in:
ridiculousfish 2013-12-16 15:33:20 -08:00
parent 471f7f06f7
commit 0e421ea31d
3 changed files with 47 additions and 28 deletions
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25
expand.cpp
View file

@ -1602,6 +1602,31 @@ static void unexpand_tildes(const wcstring &input, std::vector<completion_t> *co
}
}
// If the given path contains the user's home directory, replace that with a tilde
// We don't try to be smart about case insensitivity, etc.
wcstring replace_home_directory_with_tilde(const wcstring &str)
{
// only absolute paths get this treatment
wcstring result = str;
if (string_prefixes_string(L"/", result))
{
wcstring home_directory = L"~";
expand_tilde(home_directory);
if (! string_suffixes_string(L"/", home_directory))
{
home_directory.push_back(L'/');
}
// Now check if the home_directory prefixes the string
if (string_prefixes_string(home_directory, result))
{
// Success
result.replace(0, home_directory.size(), L"~/");
}
}
return result;
}
/**
Remove any internal separators. Also optionally convert wildcard characters to
regular equivalents. This is done to support EXPAND_SKIP_WILDCARDS.

3
expand.h
View file

@ -176,6 +176,9 @@ wcstring expand_escape_variable(const wcstring &in);
*/
void expand_tilde(wcstring &input);
/** Perform the opposite of tilde expansion on the string, which is modified in place */
wcstring replace_home_directory_with_tilde(const wcstring &str);
/**
Test if the specified argument is clean, i.e. it does not contain
any tokens which need to be expanded or otherwise altered. Clean

45
parser.cpp
View file

@ -312,6 +312,13 @@ static const struct block_lookup_entry block_lookup[]=
static bool job_should_skip_elseif(const job_t *job, const block_t *current_block);
// Given a file path, return something nicer. Currently we just "unexpand" tildes.
static wcstring user_presentable_path(const wcstring &path)
{
return replace_home_directory_with_tilde(path);
}
parser_t::parser_t(enum parser_type_t type, bool errors) :
parser_type(type),
show_errors(errors),
@ -324,7 +331,6 @@ parser_t::parser_t(enum parser_type_t type, bool errors) :
current_block(NULL),
block_io(shared_ptr<io_data_t>())
{
}
/* A pointer to the principal parser (which is a static local) */
@ -844,13 +850,13 @@ void parser_t::stack_trace(block_t *b, wcstring &buff) const
{
const source_block_t *sb = static_cast<const source_block_t*>(b);
const wchar_t *source_dest = sb->source_file;
append_format(buff, _(L"from sourcing file '%ls',\n"), source_dest);
append_format(buff, _(L"from sourcing file %ls\n"), user_presentable_path(source_dest).c_str());
break;
}
case FUNCTION_CALL:
{
const function_block_t *fb = static_cast<const function_block_t*>(b);
append_format(buff, _(L"in function '%ls',\n"), fb->name.c_str());
append_format(buff, _(L"in function '%ls'\n"), fb->name.c_str());
break;
}
case SUBST:
@ -868,14 +874,14 @@ void parser_t::stack_trace(block_t *b, wcstring &buff) const
if (file)
{
append_format(buff,
_(L"\tcalled on line %d of file '%ls',\n"),
_(L"\tcalled on line %d of file %ls\n"),
b->src_lineno,
file);
user_presentable_path(file).c_str());
}
else
{
append_format(buff,
_(L"\tcalled on standard input,\n"));
_(L"\tcalled on standard input\n"));
}
if (b->type() == FUNCTION_CALL)
@ -2611,6 +2617,7 @@ int parser_t::eval(const wcstring &cmd_str, const io_chain_t &io, enum block_typ
tokenizer_t local_tokenizer(cmd, 0);
scoped_push<tokenizer_t *> tokenizer_push(&current_tokenizer, &local_tokenizer);
scoped_push<int> tokenizer_pos_push(&current_tokenizer_pos, 0);
error_code = 0;
@ -2897,31 +2904,12 @@ struct block_info_t
block_type_t type; //type of the block
};
/* Append a syntax error to the given error list */
static bool append_syntax_error(parse_error_list_t *errors, const parse_node_t &node, const wchar_t *fmt, ...)
{
parse_error_t error;
error.source_start = node.source_start;
error.source_length = node.source_length;
error.code = parse_error_syntax;
va_list va;
va_start(va, fmt);
error.text = vformat_string(fmt, va);
va_end(va);
errors->push_back(error);
return true;
}
void parser_t::get_backtrace(const wcstring &src, const parse_error_list_t &errors, wcstring *output) const
{
assert(output != NULL);
if (! errors.empty())
{
const parse_error_t err = errors.at(0);
output->append(err.describe(src));
output->push_back(L'\n');
// Determine which line we're on
assert(err.source_start <= src.size());
@ -2930,13 +2918,16 @@ void parser_t::get_backtrace(const wcstring &src, const parse_error_list_t &erro
const wchar_t *filename = this->current_filename();
if (filename)
{
append_format(*output, _(L"line %lu of '%ls'\n"), which_line, filename);
append_format(*output, _(L"fish: line %lu of %ls:\n"), which_line, user_presentable_path(filename).c_str());
}
else
{
append_format(*output, L"%ls: ", _(L"Standard input"), which_line);
append_format(*output, L"fish: %ls:", _(L"Error:"));
}
output->append(err.describe(src));
output->push_back(L'\n');
this->stack_trace(current_block, *output);
}
}