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Newline replacement string for portion render

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This commit is contained in:
lash 2023-04-07 11:31:30 +01:00
parent 063b786572
commit a8a6adbe6c
Signed by untrusted user who does not match committer: lash
GPG Key ID: 21D2E7BB88C2A746
9 changed files with 197 additions and 59 deletions
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4
go/engine/engine.go
View File

@ -119,12 +119,12 @@ func (en *Engine) Exec(input []byte, ctx context.Context) (bool, error) {
// - the template for the given node point is note available for retrieval using the resource.Resource implementer.
// - the supplied writer fails to process the writes.
func(en *Engine) WriteResult(w io.Writer) error {
location := en.st.Where()
location, idx := en.st.Where()
v, err := en.st.Get()
if err != nil {
return err
}
r, err := en.rs.RenderTemplate(location, v)
r, err := en.rs.RenderTemplate(location, v, idx, nil)
if err != nil {
return err
}

6
go/engine/engine_test.go
View File

@ -31,8 +31,8 @@ func NewFsWrapper(path string, st *state.State) FsWrapper {
}
}
func (r FsWrapper) RenderTemplate(sym string, values map[string]string) (string, error) {
return resource.DefaultRenderTemplate(r, sym, values)
func (r FsWrapper) RenderTemplate(sym string, values map[string]string, idx uint16, sizer *resource.Sizer) (string, error) {
return resource.DefaultRenderTemplate(r, sym, values, idx, sizer)
}
func(fs FsWrapper) one(ctx context.Context) (string, error) {
@ -101,7 +101,7 @@ func TestEngineInit(t *testing.T) {
if err != nil {
t.Fatal(err)
}
r := st.Where()
r, _ := st.Where()
if r != "foo" {
t.Fatalf("expected where-string 'foo', got %s", r)
}

16
go/resource/render.go
View File

@ -2,16 +2,30 @@ package resource
import (
"bytes"
"fmt"
"log"
"text/template"
)
// DefaultRenderTemplate is an adapter to implement the builtin golang text template renderer as resource.RenderTemplate.
func DefaultRenderTemplate(r Resource, sym string, values map[string]string) (string, error) {
func DefaultRenderTemplate(r Resource, sym string, values map[string]string, idx uint16, sizer *Sizer) (string, error) {
v, err := r.GetTemplate(sym, nil)
if err != nil {
return "", err
}
if sizer != nil {
values, err = sizer.GetAt(values, idx)
} else if idx > 0 {
return "", fmt.Errorf("sizer needed for indexed render")
}
log.Printf("render for index: %v", idx)
if err != nil {
return "", err
}
tp, err := template.New("tester").Option("missingkey=error").Parse(v)
if err != nil {
return "", err

85
go/resource/resource.go
View File

@ -20,9 +20,9 @@ type Resource interface {
PutMenu(string, string) error // Add a menu item.
ShiftMenu() (string, string, error) // Remove and return the first menu item in list.
SetMenuBrowse(string, string, bool) error // Set menu browser display details.
RenderTemplate(sym string, values map[string]string) (string, error) // Render the given data map using the template of the symbol.
RenderTemplate(sym string, values map[string]string, idx uint16, sizer *Sizer) (string, error) // Render the given data map using the template of the symbol.
RenderMenu() (string, error) // Render the current state of menu
Render(sym string, values map[string]string, sizer *Sizer) (string, error) // Render full output.
Render(sym string, values map[string]string, idx uint16, sizer *Sizer) (string, error) // Render full output.
FuncFor(sym string) (EntryFunc, error) // Resolve symbol content point for.
}
@ -30,6 +30,7 @@ type MenuResource struct {
menu [][2]string
next [2]string
prev [2]string
sinkValues []string
codeFunc CodeFunc
templateFunc TemplateFunc
funcFunc FuncForFunc
@ -108,8 +109,8 @@ func(m *MenuResource) RenderMenu() (string, error) {
}
// render menu and all syms except sink, split sink into display chunks
func(m *MenuResource) prepare(sym string, values map[string]string, sizer *Sizer) (map[string]string, error) {
var sink *string
func(m *MenuResource) prepare(sym string, values map[string]string, idx uint16, sizer *Sizer) (map[string]string, error) {
var sink string
var sinkValues []string
noSinkValues := make(map[string]string)
for k, v := range values {
@ -118,7 +119,7 @@ func(m *MenuResource) prepare(sym string, values map[string]string, sizer *Sizer
return nil, err
}
if sz == 0 {
sink = &k
sink = k
sinkValues = strings.Split(v, "\n")
v = ""
log.Printf("found sink %s with field count %v", k, len(sinkValues))
@ -126,12 +127,12 @@ func(m *MenuResource) prepare(sym string, values map[string]string, sizer *Sizer
noSinkValues[k] = v
}
if sink == nil {
if sink == "" {
log.Printf("no sink found for sym %s", sym)
return values, nil
}
s, err := m.render(sym, noSinkValues, sizer)
s, err := m.render(sym, noSinkValues, 0, nil)
if err != nil {
return nil, err
}
@ -141,35 +142,51 @@ func(m *MenuResource) prepare(sym string, values map[string]string, sizer *Sizer
return nil, fmt.Errorf("capacity exceeded")
}
l := 0
r := ""
r_tmp := ""
log.Printf("%v bytes available for sink split", remaining)
l := 0
tb := strings.Builder{}
rb := strings.Builder{}
sizer.AddCursor(0)
for i, v := range sinkValues {
log.Printf("processing sinkvalue %v: %s", i, v)
l += len(v)
if uint32(l) > remaining {
if r_tmp == "" {
if tb.Len() == 0 {
return nil, fmt.Errorf("capacity insufficient for sink field %v", i)
}
r += r_tmp + "\n"
r_tmp = ""
rb.WriteString(tb.String())
rb.WriteRune('\n')
c := uint32(rb.Len())
sizer.AddCursor(c)
tb.Reset()
l = 0
}
r_tmp += v
if tb.Len() > 0 {
tb.WriteByte(byte(0x00))
}
tb.WriteString(v)
}
r += r_tmp
if r[len(r)-1] != '\n' {
r += "\n"
if tb.Len() > 0 {
rb.WriteString(tb.String())
}
r := rb.String()
r = strings.TrimRight(r, "\n")
noSinkValues[sink] = r
for i, v := range strings.Split(r, "\n") {
log.Printf("nosinkvalue %v: %s", i, v)
}
noSinkValues[*sink] = r
return noSinkValues, nil
}
func(m *MenuResource) RenderTemplate(sym string, values map[string]string) (string, error) {
return DefaultRenderTemplate(m, sym, values)
func(m *MenuResource) RenderTemplate(sym string, values map[string]string, idx uint16, sizer *Sizer) (string, error) {
return DefaultRenderTemplate(m, sym, values, idx, sizer)
}
func(m *MenuResource) FuncFor(sym string) (EntryFunc, error) {
@ -184,18 +201,20 @@ func(m *MenuResource) GetTemplate(sym string, sizer *Sizer) (string, error) {
return m.templateFunc(sym, sizer)
}
func(m *MenuResource) render(sym string, values map[string]string, sizer *Sizer) (string, error) {
func(m *MenuResource) render(sym string, values map[string]string, idx uint16, sizer *Sizer) (string, error) {
var ok bool
r := ""
s, err := m.RenderTemplate(sym, values)
s, err := m.RenderTemplate(sym, values, idx, sizer)
if err != nil {
return "", err
}
log.Printf("rendered %v bytes for template", len(s))
r += s
_, ok = sizer.Check(r)
if !ok {
return "", fmt.Errorf("limit exceeded: %v", sizer)
if sizer != nil {
_, ok = sizer.Check(r)
if !ok {
return "", fmt.Errorf("limit exceeded: %v", sizer)
}
}
s, err = m.RenderMenu()
if err != nil {
@ -203,20 +222,22 @@ func(m *MenuResource) render(sym string, values map[string]string, sizer *Sizer)
}
log.Printf("rendered %v bytes for menu", len(s))
r += s
_, ok = sizer.Check(r)
if !ok {
return "", fmt.Errorf("limit exceeded: %v", sizer)
if sizer != nil {
_, ok = sizer.Check(r)
if !ok {
return "", fmt.Errorf("limit exceeded: %v", sizer)
}
}
return r, nil
}
func(m *MenuResource) Render(sym string, values map[string]string, sizer *Sizer) (string, error) {
func(m *MenuResource) Render(sym string, values map[string]string, idx uint16, sizer *Sizer) (string, error) {
var err error
values, err = m.prepare(sym, values, sizer)
values, err = m.prepare(sym, values, idx, sizer)
if err != nil {
return "", err
}
return m.render(sym, values, sizer)
return m.render(sym, values, idx, sizer)
}

37
go/resource/size.go
View File

@ -1,8 +1,10 @@
package resource
import (
"bytes"
"fmt"
"log"
"strings"
"git.defalsify.org/festive/state"
)
@ -12,6 +14,7 @@ type Sizer struct {
menuSize uint16
memberSizes map[string]uint16
totalMemberSize uint32
crsrs []uint32
sink string
}
@ -21,6 +24,7 @@ func SizerFromState(st *state.State) (Sizer, error){
menuSize: st.GetMenuSize(),
memberSizes: make(map[string]uint16),
}
sizes, err := st.Sizes()
if err != nil {
return sz, err
@ -56,12 +60,39 @@ func(szr *Sizer) String() string {
}
func(szr *Sizer) Size(s string) (uint16, error) {
if szr.sink == s {
return 0, nil
}
r, ok := szr.memberSizes[s]
if !ok {
return 0, fmt.Errorf("unknown member: %s", s)
}
return r, nil
}
func(szr *Sizer) AddCursor(c uint32) {
log.Printf("added cursor: %v", c)
szr.crsrs = append(szr.crsrs, c)
}
func(szr *Sizer) GetAt(values map[string]string, idx uint16) (map[string]string, error) {
if szr.sink == "" {
return values, nil
}
outValues := make(map[string]string)
for k, v := range values {
if szr.sink == k {
if idx >= uint16(len(szr.crsrs)) {
return nil, fmt.Errorf("no more values in index")
}
c := szr.crsrs[idx]
v = v[c:]
nl := strings.Index(v, "\n")
log.Printf("k %v v %v c %v nl %v", k, v, c, nl)
if nl > 0 {
v = v[:nl]
}
b := bytes.ReplaceAll([]byte(v), []byte{0x00}, []byte{0x0a})
v = string(b)
}
outValues[k] = v
}
return outValues, nil
}

78
go/resource/size_test.go
View File

@ -19,7 +19,8 @@ func getTemplate(sym string, sizer *Sizer) (string, error) {
tpl = "one {{.foo}} two {{.bar}} three {{.baz}}"
case "toobig":
tpl = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus in mattis lorem. Aliquam erat volutpat. Ut vitae metus."
case "pages":
tpl = "one {{.foo}} two {{.bar}} three {{.baz}}\n{{.xyzzy}}"
}
return tpl, nil
}
@ -32,6 +33,8 @@ func funcFor(sym string) (EntryFunc, error) {
return getBar, nil
case "baz":
return getBaz, nil
case "xyzzy":
return getXyzzy, nil
}
return nil, fmt.Errorf("unknown func: %s", sym)
}
@ -48,6 +51,9 @@ func getBaz(ctx context.Context) (string, error) {
return "blinky", nil
}
func getXyzzy(ctx context.Context) (string, error) {
return "inky pinky\nblinky clyde sue\ntinkywinky dipsy\nlala poo\none two three four five six seven\neight nine ten\neleven twelve", nil
}
func TestSizeLimit(t *testing.T) {
st := state.NewState(0).WithOutputSize(128)
@ -81,7 +87,7 @@ func TestSizeLimit(t *testing.T) {
}
_ = tpl
_, err = rs.Render("small", vals, &szr)
_, err = rs.Render("small", vals, 0, &szr)
if err != nil {
t.Fatal(err)
}
@ -89,8 +95,74 @@ func TestSizeLimit(t *testing.T) {
rs.PutMenu("1", "foo the foo")
rs.PutMenu("2", "go to bar")
_, err = rs.Render("toobig", vals, &szr)
_, err = rs.Render("toobig", vals, 0, &szr)
if err == nil {
t.Fatalf("expected size exceeded")
}
}
func TestSizePages(t *testing.T) {
st := state.NewState(0).WithOutputSize(128)
mrs := NewMenuResource().WithEntryFuncGetter(funcFor).WithTemplateGetter(getTemplate)
rs := TestSizeResource{
mrs,
}
st.Add("foo", "inky", 4)
st.Add("bar", "pinky", 10)
st.Add("baz", "blinky", 20)
st.Add("xyzzy", "inky pinky\nblinky clyde sue\ntinkywinky dipsy\nlala poo\none two three four five six seven\neight nine ten\neleven twelve", 0)
st.Map("foo")
st.Map("bar")
st.Map("baz")
st.Map("xyzzy")
st.SetMenuSize(32)
szr, err := SizerFromState(&st)
if err != nil {
t.Fatal(err)
}
vals, err := st.Get()
if err != nil {
t.Fatal(err)
}
rs.PutMenu("1", "foo the foo")
rs.PutMenu("2", "go to bar")
r, err := rs.Render("pages", vals, 0, &szr)
if err != nil {
t.Fatal(err)
}
expect := `one inky two pinky three blinky
inky pinky
blinky clyde sue
tinkywinky dipsy
lala poo`
if r != expect {
t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", expect, r)
}
rs.PutMenu("1", "foo the foo")
rs.PutMenu("2", "go to bar")
szr, err = SizerFromState(&st)
if err != nil {
t.Fatal(err)
}
r, err = rs.Render("pages", vals, 1, &szr)
if err != nil {
t.Fatal(err)
}
expect = `one inky two pinky three blinky
one two three four five six seven
eight nine ten
eleven twelve`
if r != expect {
t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", expect, r)
}
}

8
go/state/state.go
View File

@ -37,7 +37,7 @@ type State struct {
sizes map[string]uint16 // Size limits for all loaded symbols.
bitSize uint32 // size of (32-bit capacity) bit flag byte array
sink *string
//sizeIdx uint16
sizeIdx uint16
}
func toByteSize(bitSize uint32) uint8 {
@ -204,12 +204,12 @@ func(st State) WithOutputSize(outputSize uint32) State {
}
// Where returns the current active rendering symbol.
func(st State) Where() string {
func(st State) Where() (string, uint16) {
if len(st.execPath) == 0 {
return ""
return "", 0
}
l := len(st.execPath)
return st.execPath[l-1]
return st.execPath[l-1], st.sizeIdx
}
// Down adds the given symbol to the command stack.

4
go/vm/runner.go
View File

@ -89,7 +89,7 @@ func RunDeadCheck(b []byte, st *state.State, rs resource.Resource, ctx context.C
if r {
return b, nil
}
location := st.Where()
location, _ := st.Where()
if location == "" {
return b, fmt.Errorf("dead runner with no current location")
}
@ -180,7 +180,7 @@ func RunMove(b []byte, st *state.State, rs resource.Resource, ctx context.Contex
}
if sym == "_" {
st.Up()
sym = st.Where()
sym, _ = st.Where()
} else {
st.Down(sym)
}

18
go/vm/runner_test.go
View File

@ -51,8 +51,8 @@ func (r *TestResource) GetTemplate(sym string, sizer *resource.Sizer) (string, e
return "", fmt.Errorf("unknown symbol %s", sym)
}
func (r *TestResource) RenderTemplate(sym string, values map[string]string) (string, error) {
return resource.DefaultRenderTemplate(r, sym, values)
func (r *TestResource) RenderTemplate(sym string, values map[string]string, idx uint16, sizer *resource.Sizer) (string, error) {
return resource.DefaultRenderTemplate(r, sym, values, idx, sizer)
}
func (r *TestResource) FuncFor(sym string) (resource.EntryFunc, error) {
@ -117,7 +117,7 @@ func TestRunLoadRender(t *testing.T) {
if err != nil {
t.Error(err)
}
r, err := rs.RenderTemplate("foo", m)
r, err := rs.RenderTemplate("foo", m, 0, nil)
if err != nil {
t.Error(err)
}
@ -126,7 +126,7 @@ func TestRunLoadRender(t *testing.T) {
t.Errorf("Expected %v, got %v", []byte(expect), []byte(r))
}
r, err = rs.RenderTemplate("bar", m)
r, err = rs.RenderTemplate("bar", m, 0, nil)
if err == nil {
t.Errorf("expected error for render of bar: %v" ,err)
}
@ -147,7 +147,7 @@ func TestRunLoadRender(t *testing.T) {
if err != nil {
t.Error(err)
}
r, err = rs.RenderTemplate("bar", m)
r, err = rs.RenderTemplate("bar", m, 0, nil)
if err != nil {
t.Error(err)
}
@ -219,7 +219,7 @@ func TestHalt(t *testing.T) {
if err != nil {
t.Error(err)
}
r := st.Where()
r, _ := st.Where()
if r == "foo" {
t.Fatalf("Expected where-symbol not to be 'foo'")
}
@ -245,7 +245,7 @@ func TestRunArg(t *testing.T) {
if l != 0 {
t.Errorf("expected empty remainder, got length %v: %v", l, b)
}
r := st.Where()
r, _ := st.Where()
if r != "baz" {
t.Errorf("expected where-state baz, got %v", r)
}
@ -270,7 +270,7 @@ func TestRunInputHandler(t *testing.T) {
if err != nil {
t.Fatal(err)
}
r := st.Where()
r, _ := st.Where()
if r != "foo" {
t.Fatalf("expected where-sym 'foo', got '%v'", r)
}
@ -291,7 +291,7 @@ func TestRunArgInvalid(t *testing.T) {
if err != nil {
t.Fatal(err)
}
r := st.Where()
r, _ := st.Where()
if r != "_catch" {
t.Fatalf("expected where-state _catch, got %v", r)
}