doc: README.md fix #73
62
README.md
62
README.md
|
@ -13,9 +13,15 @@ For Nix based workflow, see below.
|
|||
|
||||
Install `elan` and `lake`. Execute
|
||||
``` sh
|
||||
make build/bin/pantograph
|
||||
make
|
||||
```
|
||||
setup the `LEAN_PATH` environment variable so it contains the library path of lean libraries. The libraries must be built in advance. For example, if `mathlib4` is stored at `../lib/mathlib4`,
|
||||
This builds the executable in `.lake/build/bin/pantograph`.
|
||||
|
||||
To use Pantograph in a project environment, setup the `LEAN_PATH` environment
|
||||
variable so it contains the library path of lean libraries. The libraries must
|
||||
be built in advance. For example, if `mathlib4` is stored at `../lib/mathlib4`,
|
||||
the environment might be setup like this:
|
||||
|
||||
``` sh
|
||||
LIB="../lib"
|
||||
LIB_MATHLIB="$LIB/mathlib4/lake-packages"
|
||||
|
@ -23,7 +29,10 @@ export LEAN_PATH="$LIB/mathlib4/build/lib:$LIB_MATHLIB/aesop/build/lib:$LIB_MATH
|
|||
|
||||
LEAN_PATH=$LEAN_PATH build/bin/pantograph $@
|
||||
```
|
||||
The provided `flake.nix` has a develop environment with Lean already setup.
|
||||
The `$LEAN_PATH` executable of any project can be extracted by
|
||||
``` sh
|
||||
lake env printenv LEAN_PATH
|
||||
```
|
||||
|
||||
## Executable Usage
|
||||
|
||||
|
@ -71,33 +80,42 @@ where the application of `assumption` should lead to a failure.
|
|||
### Commands
|
||||
|
||||
See `Pantograph/Protocol.lean` for a description of the parameters and return values in JSON.
|
||||
- `reset`: Delete all cached expressions and proof trees
|
||||
- `expr.echo {"expr": <expr>, "type": <optional expected type>}`: Determine the type of an expression and round-trip it
|
||||
- `env.catalog`: Display a list of all safe Lean symbols in the current environment
|
||||
- `env.inspect {"name": <name>, "value": <bool>}`: Show the type and package of a
|
||||
* `reset`: Delete all cached expressions and proof trees
|
||||
* `stat`: Display resource usage
|
||||
* `expr.echo {"expr": <expr>, "type": <optional expected type>}`: Determine the
|
||||
type of an expression and format it
|
||||
* `env.catalog`: Display a list of all safe Lean symbols in the current environment
|
||||
* `env.inspect {"name": <name>, "value": <bool>}`: Show the type and package of a
|
||||
given symbol; If value flag is set, the value is printed or hidden. By default
|
||||
only the values of definitions are printed.
|
||||
- `options.set { key: value, ... }`: Set one or more options (not Lean options; those
|
||||
* `options.set { key: value, ... }`: Set one or more options (not Lean options; those
|
||||
have to be set via command line arguments.), for options, see `Pantograph/Protocol.lean`
|
||||
- `options.print`: Display the current set of options
|
||||
- `goal.start {["name": <name>], ["expr": <expr>], ["copyFrom": <symbol>]}`: Start a new goal from a given expression or symbol
|
||||
- `goal.tactic {"stateId": <id>, "goalId": <id>, ["tactic": <tactic>], ["expr":
|
||||
<expr>]}`: Execute a tactic string on a given goal. `tactic` executes an
|
||||
ordinary tactic, `expr` assigns an expression to the current goal, `have`
|
||||
executes the have tactic, ``calc` (of the form `lhs op rhs`) executes one step
|
||||
of `calc`, and `"conv": true`/`"conv": false` enters/exits conversion tactic
|
||||
mode.
|
||||
- `goal.continue {"stateId": <id>, ["branch": <id>], ["goals": <names>]}`: Continue from a proof state
|
||||
- `goal.remove {"stateIds": [<id>]}"`: Remove a bunch of stored goals.
|
||||
- `goal.print {"stateId": <id>}"`: Print a goal state
|
||||
- `stat`: Display resource usage
|
||||
* `options.print`: Display the current set of options
|
||||
* `goal.start {["name": <name>], ["expr": <expr>], ["copyFrom": <symbol>]}`:
|
||||
Start a new proof from a given expression or symbol
|
||||
* `goal.tactic {"stateId": <id>, "goalId": <id>, ...}`: Execute a tactic string on a
|
||||
given goal. The tactic is supplied as additional key-value pairs in one of the following formats:
|
||||
- `{ "tactic": <tactic> }`: Execute an ordinary tactic
|
||||
- `{ "expr": <expr> }`: Assign the given proof term to the current goal
|
||||
- `{ "have": <expr>, "binderName": <name> }`: Execute `have` and creates a branch goal
|
||||
- `{ "calc": <expr> }`: Execute one step of a `calc` tactic. Each step must
|
||||
be of the form `lhs op rhs`. An `lhs` of `_` indicates that it should be set
|
||||
to the previous `rhs`.
|
||||
- `{ "conv": <bool> }`: Enter or exit conversion tactic mode. In the case of
|
||||
exit, the goal id is ignored.
|
||||
* `goal.continue {"stateId": <id>, ["branch": <id>], ["goals": <names>]}`:
|
||||
Execute continuation/resumption
|
||||
- `{ "branch": <id> }`: Continue on branch state. The current state must have no goals.
|
||||
- `{ "goals": <names> }`: Resume the given goals
|
||||
* `goal.remove {"stateIds": [<id>]}"`: Drop the goal states specified in the list
|
||||
* `goal.print {"stateId": <id>}"`: Print a goal state
|
||||
|
||||
### Errors
|
||||
|
||||
When an error pertaining to the execution of a command happens, the returning JSON structure is
|
||||
|
||||
``` json
|
||||
{ error: "type", desc: "description" }
|
||||
{ "error": "type", "desc": "description" }
|
||||
```
|
||||
Common error forms:
|
||||
* `command`: Indicates malformed command structure which results from either
|
||||
|
@ -122,6 +140,8 @@ call Pantograph via this FFI since it provides a tremendous speed up.
|
|||
|
||||
## Developing
|
||||
|
||||
A Lean development shell is provided in the Nix flake.
|
||||
|
||||
### Testing
|
||||
|
||||
The tests are based on `LSpec`. To run tests,
|
||||
|
|
Loading…
Reference in New Issue