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https://github.com/stedolan/jq.git
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fe29d3d3fa
Make XPath-like `//a/b` recursive structure traversal easier in jq,
which then becomes:
..|.a?.b?
The `?` operator suppresses errors about . not being an array or object.
The `..` operator is equivalent to calling the new `recurse_down`
built-in, which in turn is equivalent to
recurse(.[]?)
Note that `..a` is not supported; neither is `...a`. That could be add
added, but it doesn't seem worth the trouble of saving the need to type
a '|'.
35 lines
832 B
C
35 lines
832 B
C
OP(LOADK, CONSTANT, 1, 1)
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OP(DUP, NONE, 1, 2)
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OP(DUP2, NONE, 2, 3)
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OP(POP, NONE, 1, 0)
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OP(LOADV, VARIABLE, 1, 1)
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OP(LOADVN, VARIABLE, 1, 1)
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OP(STOREV, VARIABLE, 1, 0)
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OP(INDEX, NONE, 2, 1)
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OP(INDEX_OPT, NONE, 2, 1)
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OP(EACH, NONE, 1, 1)
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OP(EACH_OPT, NONE, 1, 1)
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OP(FORK, BRANCH, 0, 0)
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OP(JUMP, BRANCH, 0, 0)
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OP(JUMP_F,BRANCH, 1, 0)
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OP(BACKTRACK, NONE, 0, 0)
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OP(APPEND, VARIABLE,1, 0)
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OP(INSERT, NONE, 4, 2)
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OP(RANGE, VARIABLE, 1, 1)
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OP(SUBEXP_BEGIN, NONE, 1, 2)
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OP(SUBEXP_END, NONE, 2, 2)
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OP(PATH_BEGIN, NONE, 1, 2)
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OP(PATH_END, NONE, 2, 1)
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OP(CALL_BUILTIN, CFUNC, -1, 1)
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OP(CALL_JQ, UFUNC, 1, 1)
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OP(RET, NONE, 1, 1)
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OP(CLOSURE_PARAM, DEFINITION, 0, 0)
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OP(CLOSURE_REF, CLOSURE_REF_IMM, 0, 0)
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OP(CLOSURE_CREATE, DEFINITION, 0, 0)
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OP(CLOSURE_CREATE_C, DEFINITION, 0, 0)
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