adding the is_json tool and associated readme.md details
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@ -5,10 +5,11 @@ Handy command line tools for dealing with json data.
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## Tools
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## Tools
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- **pp_json** - pretty prints json
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- **pp_json** - pretty prints json
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- **is_json** - returns true if valid json; false otherwise
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## Usage
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## Examples
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##### pp_json - examples
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##### pp_json
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```sh
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```sh
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# curl json data and pretty print the results
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# curl json data and pretty print the results
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@ -19,4 +20,16 @@ less data.json | pp_json
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# json data directly from the command line
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# json data directly from the command line
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echo '{"b":2, "a":1}' | pp_json
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echo '{"b":2, "a":1}' | pp_json
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```
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##### is_json
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```sh
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# curl json data and pretty print the results
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curl https://coderwall.com/bobwilliams.json | is_json
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# pretty print the contents of an existing json file
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less data.json | is_json
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# json data directly from the command line
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echo '{"b":2, "a":1}' | is_json
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```
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```
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@ -2,15 +2,26 @@
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# Adds command line aliases useful for dealing with JSON
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# Adds command line aliases useful for dealing with JSON
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if [[ $(whence $JSONTOOLS_METHOD) = "" ]]; then
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if [[ $(whence $JSONTOOLS_METHOD) = "" ]]; then
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JSONTOOLS_METHOD=""
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JSONTOOLS_METHOD=""
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fi
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fi
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if [[ $(whence node) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xnode" ) ]]; then
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if [[ $(whence node) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xnode" ) ]]; then
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alias pp_json='xargs -0 node -e "console.log(JSON.stringify(JSON.parse(process.argv[1]), null, 4));"'
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alias pp_json='xargs -0 node -e "console.log(JSON.stringify(JSON.parse(process.argv[1]), null, 4));"'
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alias is_json='xargs -0 node -e "try {json = JSON.parse(process.argv[1]);} catch (e) { console.log(false); json = null; } if(json) { console.log(true); }"'
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elif [[ $(whence python) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xpython" ) ]]; then
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elif [[ $(whence python) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xpython" ) ]]; then
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alias pp_json='python -mjson.tool'
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alias pp_json='python -mjson.tool'
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alias is_json='python -c "
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import json, sys;
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try:
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json.loads(sys.stdin.read())
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except ValueError, e:
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print False
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else:
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print True
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sys.exit(0)"'
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elif [[ $(whence ruby) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xruby" ) ]]; then
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elif [[ $(whence ruby) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xruby" ) ]]; then
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alias pp_json='ruby -e "require \"json\"; require \"yaml\"; puts JSON.parse(STDIN.read).to_yaml"'
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alias pp_json='ruby -e "require \"json\"; require \"yaml\"; puts JSON.parse(STDIN.read).to_yaml"'
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alias is_json='ruby -e "require \"json\"; begin; JSON.parse(STDIN.read); puts true; rescue Exception => e; puts false; end"'
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fi
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fi
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unset JSONTOOLS_METHOD
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unset JSONTOOLS_METHOD
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