hlang/h/parser.go

43 lines
885 B
Go

package h
//go:generate peggy -o h_gen.go h.peg
import (
"fmt"
"github.com/eaburns/peggy/peg"
"within.website/x/jbo/namcu"
)
func (p *_Parser) Parse() (int, bool) {
pos, perr := _HAccepts(p, 0)
return perr, pos >= 0
}
func (p *_Parser) ErrorTree(minPos int) *peg.Fail {
p.fail = make(map[_key]*peg.Fail) // reset fail memo table
_, tree := _HFail(p, 0, minPos)
return tree
}
func (p *_Parser) ParseTree() *peg.Node {
_, tree := _HNode(p, 0)
return tree
}
// Parse parses h.
// On success, the parseTree is returned.
// On failure, both the word-level and the raw, morphological errors are returned.
func Parse(text string) (*peg.Node, error) {
p := _NewParser(text)
if perr, ok := p.Parse(); !ok {
return nil, fmt.Errorf("h: gentoldra fi'o zvati fe li %s", namcu.Lerfu(perr))
}
tree := p.ParseTree()
RemoveSpace(tree)
CollapseLists(tree)
return tree, nil
}