adding the is_json tool and associated readme.md details

This commit is contained in:
Bob Williams 2014-03-25 16:20:25 -04:00
parent 64c3ce35e1
commit 982b534ce8
2 changed files with 28 additions and 4 deletions

View File

@ -5,10 +5,11 @@ Handy command line tools for dealing with json data.
## Tools
- **pp_json** - pretty prints json
- **is_json** - returns true if valid json; false otherwise
## Usage
## Examples
##### pp_json - examples
##### pp_json
```sh
# curl json data and pretty print the results
@ -20,3 +21,15 @@ less data.json | pp_json
# json data directly from the command line
echo '{"b":2, "a":1}' | pp_json
```
##### is_json
```sh
# curl json data and pretty print the results
curl https://coderwall.com/bobwilliams.json | is_json
# pretty print the contents of an existing json file
less data.json | is_json
# json data directly from the command line
echo '{"b":2, "a":1}' | is_json
```

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@ -7,10 +7,21 @@ fi
if [[ $(whence node) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xnode" ) ]]; then
alias pp_json='xargs -0 node -e "console.log(JSON.stringify(JSON.parse(process.argv[1]), null, 4));"'
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); }"'
elif [[ $(whence python) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xpython" ) ]]; then
alias pp_json='python -mjson.tool'
alias is_json='python -c "
import json, sys;
try:
json.loads(sys.stdin.read())
except ValueError, e:
print False
else:
print True
sys.exit(0)"'
elif [[ $(whence ruby) != "" && ( "x$JSONTOOLS_METHOD" = "x" || "x$JSONTOOLS_METHOD" = "xruby" ) ]]; then
alias pp_json='ruby -e "require \"json\"; require \"yaml\"; puts JSON.parse(STDIN.read).to_yaml"'
alias is_json='ruby -e "require \"json\"; begin; JSON.parse(STDIN.read); puts true; rescue Exception => e; puts false; end"'
fi
unset JSONTOOLS_METHOD