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Support space separators for abbreviations as part of #731

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This commit is contained in:
ridiculousfish 2014-10-11 16:50:16 -07:00
parent d982f2a575
commit fbade198b9
2 changed files with 14 additions and 6 deletions
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12
expand.cpp
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@ -2107,13 +2107,15 @@ bool expand_abbreviation(const wcstring &src, wcstring *output)
wcstokenizer tokenizer(var, ARRAY_SEP_STR);
while (tokenizer.next(line))
{
/* Line is expected to be of the form 'foo=bar'. Parse out the first =. Be forgiving about spaces, but silently skip on failure (no equals, or equals at the end or beginning). Try to avoid copying any strings until we are sure this is a match. */
size_t equals = line.find(L'=');
if (equals == wcstring::npos || equals == 0 || equals + 1 == line.size())
/* Line is expected to be of the form 'foo=bar' or 'foo bar'. Parse out the first = or space. Silently skip on failure (no equals, or equals at the end or beginning). Try to avoid copying any strings until we are sure this is a match. */
size_t equals_pos = line.find(L'=');
size_t space_pos = line.find(L' ');
size_t separator = mini(equals_pos, space_pos);
if (separator == wcstring::npos || separator == 0 || separator + 1 == line.size())
continue;
/* Find the character just past the end of the command. Walk backwards, skipping spaces. */
size_t cmd_end = equals;
size_t cmd_end = separator;
while (cmd_end > 0 && iswspace(line.at(cmd_end - 1)))
cmd_end--;
@ -2122,7 +2124,7 @@ bool expand_abbreviation(const wcstring &src, wcstring *output)
{
/* Success. Set output to everythign past the end of the string. */
if (output != NULL)
output->assign(line, equals + 1, wcstring::npos);
output->assign(line, separator + 1, wcstring::npos);
result = true;
break;

8
fish_tests.cpp
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@ -1466,7 +1466,8 @@ static void test_abbreviations(void)
L"=" ARRAY_SEP_STR
L"=foo" ARRAY_SEP_STR
L"foo" ARRAY_SEP_STR
L"foo=bar";
L"foo=bar" ARRAY_SEP_STR
L"gx git checkout";
env_push(true);
@ -1494,6 +1495,11 @@ static void test_abbreviations(void)
if (! expanded) err(L"gc not expanded");
if (result != L"git checkout somebranch") err(L"gc incorrectly expanded on line %ld to '%ls'", (long)__LINE__, result.c_str());
/* space separation */
expanded = reader_expand_abbreviation_in_command(L"gx somebranch", wcslen(L"gc"), &result);
if (! expanded) err(L"gx not expanded");
if (result != L"git checkout somebranch") err(L"gc incorrectly expanded on line %ld to '%ls'", (long)__LINE__, result.c_str());
expanded = reader_expand_abbreviation_in_command(L"echo hi ; gc somebranch", wcslen(L"echo hi ; g"), &result);
if (! expanded) err(L"gc not expanded on line %ld", (long)__LINE__);
if (result != L"echo hi ; git checkout somebranch") err(L"gc incorrectly expanded on line %ld", (long)__LINE__);