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CLI

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- Implemented ::canonicalize.
This commit is contained in:
Paul Beckingham 2014-10-14 00:45:53 -04:00
parent 227e0bd8c8
commit 4d921c7920
1 changed files with 43 additions and 0 deletions
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43
src/CLI.cpp
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@ -33,6 +33,12 @@
extern Context context;
// Overridden by rc.abbreviation.minimum.
static int minimumMatchLength = 3;
// Alias expansion limit. Any more indicates some kind of error.
static int safetyValveDefault = 10;
////////////////////////////////////////////////////////////////////////////////
CLI::CLI ()
: _program ("")
@ -128,6 +134,43 @@ bool CLI::exactMatch (
return false;
}
////////////////////////////////////////////////////////////////////////////////
// Search for 'value' in _entities category, return canonicalized value.
bool CLI::canonicalize (
std::string& canonicalized,
const std::string& category,
const std::string& value) const
{
// Find the category.
std::pair <std::multimap <std::string, std::string>::const_iterator, std::multimap <std::string, std::string>::const_iterator> c;
c = _entities.equal_range (category);
// Extract a list of entities for category.
std::vector <std::string> options;
std::multimap <std::string, std::string>::const_iterator e;
for (e = c.first; e != c.second; ++e)
{
// Shortcut: if an exact match is found, success.
if (value == e->second)
{
canonicalized = value;
return true;
}
options.push_back (e->second);
}
// Match against the options, throw away results.
std::vector <std::string> matches;
if (autoComplete (value, options, matches, minimumMatchLength) == 1)
{
canonicalized = matches[0];
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////////////////
void CLI::dump (const std::string& label) const
{