1 | #
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2 | # Corner cases in var sub. Maybe rename this file.
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3 |
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4 | #### Bad var sub
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5 | echo ${a&}
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6 | ## stdout-json: ""
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7 | ## status: 2
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8 | ## OK bash/mksh status: 1
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9 |
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10 | #### Braced block inside ${}
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11 | # NOTE: This bug was in bash 4.3 but fixed in bash 4.4.
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12 | echo ${foo:-$({ ls /bin/ls; })}
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13 | ## stdout: /bin/ls
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14 |
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15 | #### Nested ${}
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16 | bar=ZZ
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17 | echo ${foo:-${bar}}
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18 | ## stdout: ZZ
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19 |
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20 | #### Filename redirect with "$@"
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21 | # bash - ambiguous redirect -- yeah I want this error
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22 | # - But I want it at PARSE time? So is there a special DollarAtPart?
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23 | # MultipleArgsPart?
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24 | # mksh - tries to create '_tmp/var-sub1 _tmp/var-sub2'
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25 | # dash - tries to create '_tmp/var-sub1 _tmp/var-sub2'
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26 | fun() {
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27 | echo hi > "$@"
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28 | }
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29 | fun _tmp/var-sub1 _tmp/var-sub2
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30 | ## status: 1
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31 | ## OK dash status: 2
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32 |
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33 | #### Descriptor redirect to bad "$@"
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34 | # All of them give errors:
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35 | # dash - bad fd number, parse error?
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36 | # bash - ambiguous redirect
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37 | # mksh - illegal file descriptor name
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38 | set -- '2 3' 'c d'
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39 | echo hi 1>& "$@"
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40 | ## status: 1
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41 | ## OK dash status: 2
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42 |
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43 | #### Here doc with bad "$@" delimiter
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44 | # bash - syntax error
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45 | # dash - syntax error: end of file unexpected
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46 | # mksh - runtime error: here document unclosed
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47 | #
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48 | # What I want is syntax error: bad delimiter!
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49 | #
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50 | # This means that "$@" should be part of the parse tree then? Anything that
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51 | # involves more than one token.
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52 | fun() {
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53 | cat << "$@"
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54 | hi
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55 | 1 2
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56 | }
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57 | fun 1 2
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58 | ## status: 2
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59 | ## stdout-json: ""
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60 | ## OK mksh status: 1
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