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| Release history |
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| * jq version 1.0 was released on Sun Oct 21 2012 |
| * jq version 1.1 was released on Sun Oct 21 2012 |
| * jq version 1.2 was released on Thu Dec 20 2012 |
| * jq version 1.3 was released on Sun May 19 2013 |
| * jq version 1.4 was released on Mon Jun 9 2014 |
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| As yet unreleased features in master branch, since 1.4: |
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| - semantics |
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| - multiple function argument numbers for any one function name, |
| dispatching on number of arguments in function calls |
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| - misc |
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| - env builting (to access the environment) |
| - prebuilt jq.1 man page |
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| New features in 1.4 since 1.3: |
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| - command-line arguments |
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| - jq --arg-file variable file |
| - jq --unbuffered |
| - jq -e / --exit-status (set exit status based on outputs) |
| - jq -S / --sort-keys (now jq no longer sorts object keys by |
| default |
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| - syntax |
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| - .. -> like // in XPath (recursive traversal) |
| - question mark (e.g., .a?) to suppress errors |
| - ."foo" syntax (equivalent to .["foo"]) |
| - better error handling for .foo |
| - added % operator (modulo) |
| - allow negation without requiring extra parenthesis |
| - more function arguments (up to six) |
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| - filters: |
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| - any, all |
| - iterables, arrays, objects, scalars, nulls, booleans, numbers, |
| strings, values |
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| - string built-ins: |
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| - split |
| - join (join an array of strings with a given separator string) |
| - ltrimstr, rtrimstr |
| - startswith, endswith |
| - explode, implode |
| - fromjson, tojson |
| - index, rindex, indices |
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| - math functions |
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| - floor, sqrt, cbrt, etetera (depends on what's available from libm) |
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| - libjq -- a C API interface to jq's JSON representation and for |
| running jq programs from C applications |
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