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Rough draft #1

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Rough draft #1

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8c2f61e
Rough draft
glyn Nov 23, 2020
92e9a9b
Address review comments
glyn Nov 30, 2020
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13 changes: 8 additions & 5 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,10 @@ If JSONPath `p` is selector `s` followed by JSONPath `t`, then for all JSON valu
```
Question: do we need to use something like quasi quotes to clarify the above?

## dot child
## selectors

The following sections describe primitive selectors which can be strung together to form a JSONPath.
### dot child
If `o` is a JSON object which does not have key `k`, then:
```
<o>.k = <>
Expand All @@ -52,12 +55,12 @@ and:
<o ∪ {k:v}>.k = <v>
```

## union
### union
```
<a>[u, v] = (<a>[u]) ^ (<a>[v])
```

## bracket child
### bracket child
If `o` is a JSON object which does not have key `k` (for certain forms of k...), then:
```
<o>[k] = <>
Expand All @@ -67,7 +70,7 @@ and:
<o ∪ {k:v}>[k] = <v>
```

## array slice
### array slice
If `a` is an array, then:
```
... details! ...
Expand All @@ -78,7 +81,7 @@ If `a` is not an array and `sl` is a slice expression, then:
<a>[sl] = <>
```

## recursive descent
### recursive descent
If `z` is a scalar:
```
<z>.. = <z>
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