On Monday, 1 August 2022 at 05:52:36 UTC, frame wrote:
If the JSON files are already parsed, why you stringify and
reparse it?
Because of ...
1. mental block and
2. I didn't know `jsonResult.array = [];`
Many thanks for pointing this out. I tried the following, and
didn't work, and hence my earlier convoluted approach:
- `JSONValue[] jsonResult;`
- `JSONValue jsonResult = [];`
A plain array should be also mergeable via `jsonResult.array ~=
j.array` (if `j` really is an array, you need to check the type
first)
Based in your suggestion, the snippet is now more brief.
```d
module combinejsonv3;
import std.file;
import std.stdio;
import std.json;
import std.array;
import std.algorithm.searching;
void main()
{
// merged JSON to be stored here
JSONValue jsonResult;
jsonResult.array = [];
foreach (string filename; dirEntries(".", "*.json",
SpanMode.shallow))
{
// if filename contains 'output' in it, ignore
if(canFind(filename, "output")) {
std.stdio.writeln("ignoring: " ~ filename);
continue;
}
// read JSON file as string
string content = std.file.readText(filename);
// parse as JSON
JSONValue j = parseJSON(content);
// if JSONType is array, merge
if(j.type == JSONType.array) {
// show status to console
std.stdio.writeln("processing JSON array from: "
~ filename);
jsonResult.array ~= j.array;
}
}
// write to file
std.file.write("output-combined.json",
jsonResult.toPrettyString);
}
```
Thank you!
-ikel
