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emit error message when test is given invalid int

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This augments the previous change for issue #3346 by adding an error
message when an invalid integer is seen. This change is likely to be
controversial so I'm not going to squash it into the previous change.
This commit is contained in:
Kurtis Rader 2016-11-27 19:05:37 -08:00
parent 2f33c24a07
commit 54a76bb9e5
3 changed files with 162 additions and 157 deletions
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198
share/functions/__fish_print_help.fish
View File

@ -1,104 +1,104 @@
function __fish_print_help --description "Print help message for the specified fish function or builtin" --argument item
# special support for builtin_help_get()
set -l tty_width
if test "$item" = "--tty-width"
set tty_width $argv[2]
set item $argv[3]
end
if test "$item" = '.'
set item source
end
# Do nothing if the file does not exist
if not test -e "$__fish_datadir/man/man1/$item.1" -o -e "$__fish_datadir/man/man1/$item.1.gz"
return
end
set -l IFS \n\ \t
# Render help output, save output into the variable 'help'
set -l help
set -l cols
set -l rLL
if test "$tty_width" -gt 0
set cols $tty_width
else if command test -t 1
# We want to simulate `man`'s dynamic line length, because
# defaulting to 80 kind of sucks.
# Note: using `command test` instead of `test` because `test -t 1`
# doesn't seem to work right.
# Note: grab the size from the stdout terminal in case it's somehow
# different than the stdin of fish.
# use fd 3 to copy our stdout because we need to pipe the output of stty
begin
stty size 0<&3 | read __ cols
end 3<&1
end
if test -n "$cols"
set cols (math $cols - 4) # leave a bit of space on the right
set rLL -rLL=$cols[1]n
end
set -lx GROFF_TMAC_PATH $__fish_datadir/groff
if test -e "$__fish_datadir/man/man1/$item.1"
set help (nroff -c -man -mfish -t $rLL "$__fish_datadir/man/man1/$item.1" ^/dev/null)
else if test -e "$__fish_datadir/man/man1/$item.1.gz"
set help (gunzip -c "$__fish_datadir/man/man1/$item.1.gz" ^/dev/null | nroff -c -man -mfish -t $rLL ^/dev/null)
# special support for builtin_help_get()
set -l tty_width 0
if test "$item" = "--tty-width"
set tty_width $argv[2]
set item $argv[3]
end
# The original implementation trimmed off the top 5 lines and bottom 3 lines
# from the nroff output. Perhaps that's reliable, but the magic numbers make
# me extremely nervous. Instead, let's just strip out any lines that start
# in the first column. "normal" manpages put all section headers in the first
# column, but fish manpages only leave NAME like that, which we want to trim
# away anyway.
#
# While we're at it, let's compress sequences of blank lines down to a single
# blank line, to duplicate the default behavior of `man`, or more accurately,
# the `-s` flag to `less` that `man` passes.
set -l state blank
for line in $help
# categorize the line
set -l line_type
switch $line
case ' *' \t\*
# starts with whitespace, check if it has non-whitespace
printf "%s\n" $line | read -l word __
if test -n $word
set line_type normal
else
# lines with just spaces probably shouldn't happen
# but let's consider them to be blank
set line_type blank
end
case ''
set line_type blank
case '*'
# not leading space, and not empty, so must contain a non-space
# in the first column. That makes it a header/footer.
set line_type meta
end
if test "$item" = '.'
set item source
end
switch $state
case normal
switch $line_type
case normal
printf "%s\n" $line
case blank
set state blank
case meta
# skip it
end
case blank
switch $line_type
case normal
echo # print the blank line
printf "%s\n" $line
set state normal
case blank meta
# skip it
end
end
end | ul # post-process with `ul`, to interpret the old-style grotty escapes
echo # print a trailing blank line
# Do nothing if the file does not exist
if not test -e "$__fish_datadir/man/man1/$item.1" -o -e "$__fish_datadir/man/man1/$item.1.gz"
return
end
set -l IFS \n\ \t
# Render help output, save output into the variable 'help'
set -l help
set -l cols
set -l rLL
if test "$tty_width" -gt 0
set cols $tty_width
else if command test -t 1
# We want to simulate `man`'s dynamic line length, because
# defaulting to 80 kind of sucks.
# Note: using `command test` instead of `test` because `test -t 1`
# doesn't seem to work right.
# Note: grab the size from the stdout terminal in case it's somehow
# different than the stdin of fish.
# use fd 3 to copy our stdout because we need to pipe the output of stty
begin
stty size 0<&3 | read __ cols
end 3<&1
end
if test -n "$cols"
set cols (math $cols - 4) # leave a bit of space on the right
set rLL -rLL=$cols[1]n
end
set -lx GROFF_TMAC_PATH $__fish_datadir/groff
if test -e "$__fish_datadir/man/man1/$item.1"
set help (nroff -c -man -mfish -t $rLL "$__fish_datadir/man/man1/$item.1" ^/dev/null)
else if test -e "$__fish_datadir/man/man1/$item.1.gz"
set help (gunzip -c "$__fish_datadir/man/man1/$item.1.gz" ^/dev/null | nroff -c -man -mfish -t $rLL ^/dev/null)
end
# The original implementation trimmed off the top 5 lines and bottom 3 lines
# from the nroff output. Perhaps that's reliable, but the magic numbers make
# me extremely nervous. Instead, let's just strip out any lines that start
# in the first column. "normal" manpages put all section headers in the first
# column, but fish manpages only leave NAME like that, which we want to trim
# away anyway.
#
# While we're at it, let's compress sequences of blank lines down to a single
# blank line, to duplicate the default behavior of `man`, or more accurately,
# the `-s` flag to `less` that `man` passes.
set -l state blank
for line in $help
# categorize the line
set -l line_type
switch $line
case ' *' \t\*
# starts with whitespace, check if it has non-whitespace
printf "%s\n" $line | read -l word __
if test -n $word
set line_type normal
else
# lines with just spaces probably shouldn't happen
# but let's consider them to be blank
set line_type blank
end
case ''
set line_type blank
case '*'
# not leading space, and not empty, so must contain a non-space
# in the first column. That makes it a header/footer.
set line_type meta
end
switch $state
case normal
switch $line_type
case normal
printf "%s\n" $line
case blank
set state blank
case meta
# skip it
end
case blank
switch $line_type
case normal
echo # print the blank line
printf "%s\n" $line
set state normal
case blank meta
# skip it
end
end
end | ul # post-process with `ul`, to interpret the old-style grotty escapes
echo # print a trailing blank line
end

35
src/builtin_test.cpp
View File

@ -4,6 +4,7 @@
#include "config.h" // IWYU pragma: keep
#include <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/stat.h>
@ -637,9 +638,13 @@ bool parenthetical_expression::evaluate(wcstring_list_t &errors) {
// IEEE 1003.1 says nothing about what it means for two strings to be "algebraically equal". For
// example, should we interpret 0x10 as 0, 10, or 16? Here we use only base 10 and use wcstoll,
// which allows for leading + and -, and leading whitespace. This matches bash.
static bool parse_number(const wcstring &arg, long long *out) {
// which allows for leading + and -, and whitespace. This is consistent, albeit a bit more lenient
// since we allow trailing whitespace, with other implementations such as bash.
static bool parse_number(const wcstring &arg, long long *out, wcstring_list_t &errors) {
*out = fish_wcstoll(arg.c_str());
if (errno) {
errors.push_back(format_string(_(L"invalid integer '%ls'"), arg.c_str()));
}
return !errno;
}
@ -655,28 +660,28 @@ static bool binary_primary_evaluate(test_expressions::token_t token, const wcstr
return left != right;
}
case test_number_equal: {
return parse_number(left, &left_num) && parse_number(right, &right_num) &&
left_num == right_num;
return parse_number(left, &left_num, errors) &&
parse_number(right, &right_num, errors) && left_num == right_num;
}
case test_number_not_equal: {
return parse_number(left, &left_num) && parse_number(right, &right_num) &&
left_num != right_num;
return parse_number(left, &left_num, errors) &&
parse_number(right, &right_num, errors) && left_num != right_num;
}
case test_number_greater: {
return parse_number(left, &left_num) && parse_number(right, &right_num) &&
left_num > right_num;
return parse_number(left, &left_num, errors) &&
parse_number(right, &right_num, errors) && left_num > right_num;
}
case test_number_greater_equal: {
return parse_number(left, &left_num) && parse_number(right, &right_num) &&
left_num >= right_num;
return parse_number(left, &left_num, errors) &&
parse_number(right, &right_num, errors) && left_num >= right_num;
}
case test_number_lesser: {
return parse_number(left, &left_num) && parse_number(right, &right_num) &&
left_num < right_num;
return parse_number(left, &left_num, errors) &&
parse_number(right, &right_num, errors) && left_num < right_num;
}
case test_number_lesser_equal: {
return parse_number(left, &left_num) && parse_number(right, &right_num) &&
left_num <= right_num;
return parse_number(left, &left_num, errors) &&
parse_number(right, &right_num, errors) && left_num <= right_num;
}
default: {
errors.push_back(format_string(L"Unknown token type in %s", __func__));
@ -729,7 +734,7 @@ static bool unary_primary_evaluate(test_expressions::token_t token, const wcstri
return !wstat(arg, &buf) && buf.st_size > 0;
}
case test_filedesc_t: { // "-t", whether the fd is associated with a terminal
return parse_number(arg, &num) && num == (int)num && isatty((int)num);
return parse_number(arg, &num, errors) && num == (int)num && isatty((int)num);
}
case test_fileperm_r: { // "-r", read permission
return !waccess(arg, R_OK);

86
tests/test4.in
View File

@ -33,65 +33,65 @@ set -g smurf yellow
call3
call4
set -l foo 1
set -g bar 2
set -U baz 3
set -l foo 1
set -g bar 2
set -U baz 3
set -l -q foo
set -l -q foo
if test $status -ne 0
echo Test 5 fail
echo Test 5 fail
else
echo Test 5 pass
end;
if not set -g -q bar
echo Test 6 fail
if not set -g -q bar
echo Test 6 fail
else
echo Test 6 pass
end;
if not set -U -q baz
echo Test 7 fail
if not set -U -q baz
echo Test 7 fail
else
echo Test 7 pass
end;
set -u -l -q foo
if test $status -ne 0
echo Test 8 fail
set -u -l -q foo
if test $status -ne 0
echo Test 8 fail
else
echo Test 8 pass
end;
if not set -u -g -q bar
echo Test 9 fail
if not set -u -g -q bar
echo Test 9 fail
else
echo Test 9 pass
end;
if not set -u -U -q baz
echo Test 10 fail
if not set -u -U -q baz
echo Test 10 fail
else
echo Test 10 pass
end;
set -x -l -q foo
set -x -l -q foo
if test $status -eq 0
echo Test 11 fail
echo Test 11 fail
else
echo Test 11 pass
end;
if set -x -g -q bar
echo Test 12 fail
if set -x -g -q bar
echo Test 12 fail
else
echo Test 12 pass
end;
if set -x -U -q baz
echo Test 13 fail
if set -x -U -q baz
echo Test 13 fail
else
echo Test 13 pass
end;
@ -100,61 +100,61 @@ set -x -l foo 1
set -x -g bar 2
set -x -U baz 3
set -l -q foo
if test $status -ne 0
echo Test 14 fail
set -l -q foo
if test $status -ne 0
echo Test 14 fail
else
echo Test 14 pass
end;
if not set -g -q bar
echo Test 15 fail
if not set -g -q bar
echo Test 15 fail
else
echo Test 15 pass
end;
if not set -U -q baz
echo Test 16 fail
if not set -U -q baz
echo Test 16 fail
else
echo Test 16 pass
end;
set -u -l -q foo
if test $status -ne 1
echo Test 17 fail
set -u -l -q foo
if test $status -ne 1
echo Test 17 fail
else
echo Test 17 pass
end;
if set -u -g -q bar
echo Test 18 fail
if set -u -g -q bar
echo Test 18 fail
else
echo Test 18 pass
end;
if set -u -U -q baz
echo Test 19 fail
if set -u -U -q baz
echo Test 19 fail
else
echo Test 19 pass
end;
set -x -l -q foo
if test $status -ne 0
echo Test 20 fail
set -x -l -q foo
if test $status -ne 0
echo Test 20 fail
else
echo Test 20 pass
end;
if not set -x -g -q bar
echo Test 21 fail
if not set -x -g -q bar
echo Test 21 fail
else
echo Test 21 pass
end;
if not set -x -U -q baz
echo Test 22 fail
if not set -x -U -q baz
echo Test 22 fail
else
echo Test 22 pass
end;