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79 lines
2.7 KiB
Markdown
79 lines
2.7 KiB
Markdown
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# GDB Pretty Printer
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File [nlohmann-json.py](nlohmann-json.py) contains a pretty printer for GDB for JSON values of this library. It was originally published as [Gist](https://gist.github.com/ssbssa/60da5339c6e6036b2afce17de06050ea#file-nlohmann-json-py) by [Hannes Domani](https://github.com/ssbssa).
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## How to use
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- Add line
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```
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source /path/to/nlohmann-json.py
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```
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to `~/.gdbinit`. Note you must replace `/path/to` with whatever path you stored file `nlohmann-json.py`.
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- In GDB, debug as usual. When you want to pretty-print a JSON value `var`, type
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```
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p -pretty on -array on -- var
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```
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The result should look like
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```
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$1 = std::map with 5 elements = {
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["Baptiste"] = std::map with 1 element = {
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["first"] = "second"
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},
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["Emmanuel"] = std::vector of length 3, capacity 3 = {
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3,
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"25",
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0.5
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},
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["Jean"] = 0.7,
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["Zorg"] = std::map with 8 elements = {
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["array"] = std::vector of length 3, capacity 3 = {
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1,
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0,
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2
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},
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["awesome_str"] = "bleh",
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["bool"] = true,
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["flex"] = 0.2,
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["float"] = 5.22,
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["int"] = 5,
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["nested"] = std::map with 1 element = {
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["bar"] = "barz"
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},
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["trap "] = "you fell"
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},
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["empty"] = nlohmann::detail::value_t::null
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}
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```
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Requires Python 3.9+. Last tested with GDB 12.1.
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See [#1952](https://github.com/nlohmann/json/issues/1952) for more information. Please post questions there.
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## Copyright
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MIT License
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Copyright (C) 2020 [Hannes Domani](https://github.com/ssbssa)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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