README
¶
Poor Man's MetaPost
This is an experimental fun project, currently without any practical purpose. The first draft used ANTLR as a parser generator, but I intend to migrate it to GoRGO as test case for GoRGO's shortcomings.
I don't strive for fancy graphics, but rather aim at simple figures like this one:
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
var ConditionGuiStarted = newCondition("guiStarted")
ConditionGuiStarted is a condition variable for waiting/announcing that a window has been opened and therefore the GUI subsystem has been ramped up.
Wait for this condition with `ConditionGuiStarted.Wait()` and announce it with `ConditionGuiStarted.Broadcast()`.
var Configuration *koanf.Koanf
Configuration holds global configuration values. We use koanf.
var SignalContext context.Context
SignalContext is a global context for terminating the application by an interrupt signal.
var Tracefile io.WriteCloser
Tracefile is the file we write our log output, if not nil.
Functions ¶
Types ¶
type Numeric ¶
type Numeric polyn.Polynomial
Numeric is a known or unknown scalar value.
func (Numeric) Polynomial ¶
func (n Numeric) Polynomial() polyn.Polynomial
Polynomial is a type-cast to type Polynomial.
type Pair ¶
type Pair struct {
// contains filtered or unexported fields
}
Pair is a known or unknown pair value.
type TokenOperator ¶
type TokenOperator struct {
// contains filtered or unexported fields
}
func NewTokenOperator ¶
func NewTokenOperator(t gorgo.Token) TokenOperator
func (TokenOperator) Call ¶
func (top TokenOperator) Call(e terex.Element, env *terex.Environment) terex.Element
Call delegates the operator call to a symbol in the environment. The symbol is searched for with the literal value of the operator.
func (TokenOperator) Opname ¶
func (top TokenOperator) Opname() string
func (TokenOperator) String ¶
func (top TokenOperator) String() string
func (TokenOperator) Token ¶
func (top TokenOperator) Token() gorgo.Token
type Value ¶
type Value interface {
Self() ValueBase // helper indirection, see type ValueBase
IsKnown() bool // is this a known value ?
Type() ValueType // type of the value
}
Value is an interface for all values which PMMP can handle.
type ValueBase ¶
type ValueBase struct {
V Value
}
ValueBase is a helper struct for operations on values.
func (ValueBase) AsNumeric ¶
AsNumeric returns a value a Numeric, or an error and an invalid Numeric.
Source Files
Directories
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| Path | Synopsis |
|---|---|
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Package corelang implements core commands for DSLs dealing with arithmetic expressions, pairs and paths.
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Package corelang implements core commands for DSLs dealing with arithmetic expressions, pairs and paths. |
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Package pmmp is a poor man's version of MetaFont/MetaPost.
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Package pmmp is a poor man's version of MetaFont/MetaPost. |
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cli
Package cli implements the pmmp command line interface.
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Package cli implements the pmmp command line interface. |
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ui/termui
Package termui provides objects and methods for interactive UI in terminal windows.
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Package termui provides objects and methods for interactive UI in terminal windows. |
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Package variables implements variables for programming languages similar to those in MetaFont and MetaPost.
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Package variables implements variables for programming languages similar to those in MetaFont and MetaPost. |
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varparse
Package varparse implements functions to create variable declarations and references from syntax trees.
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Package varparse implements functions to create variable declarations and references from syntax trees. |