forked from gitea/gitea
Use a general Eval function for expressions in templates. (#23927)
One of the proposals in #23328 This PR introduces a simple expression calculator (templates/eval/eval.go), it can do basic expression calculations. Many untested template helper functions like `Mul` `Add` can be replaced by this new approach. Then these `Add` / `Mul` / `percentage` / `Subtract` / `DiffStatsWidth` could all use this `Eval`. And it provides enhancements for Golang templates, and improves readability. Some examples: ---- * Before: `{{Add (Mul $glyph.Row 12) 12}}` * After: `{{Eval $glyph.Row "*" 12 "+" 12}}` ---- * Before: `{{if lt (Add $i 1) (len $.Topics)}}` * After: `{{if Eval $i "+" 1 "<" (len $.Topics)}}` ## FAQ ### Why not use an existing expression package? We need a highly customized expression engine: * do the calculation on the fly, without pre-compiling * deal with int/int64/float64 types, to make the result could be used in Golang template. * make the syntax could be used in the Golang template directly * do not introduce too much complex or strange syntax, we just need a simple calculator. * it needs to strictly follow Golang template's behavior, for example, Golang template treats all non-zero values as truth, but many 3rd packages don't do so. ### What's the benefit? * Developers don't need to add more `Add`/`Mul`/`Sub`-like functions, they were getting more and more. Now, only one `Eval` is enough for all cases. * The new code reads better than old `{{Add (Mul $glyph.Row 12) 12}}`, the old one isn't familiar to most procedural programming developers (eg, the Golang expression syntax). * The `Eval` is fully covered by tests, many old `Add`/`Mul`-like functions were never tested. ### The performance? It doesn't use `reflect`, it doesn't need to parse or compile when used in Golang template, the performance is as fast as native Go template. ### Is it too complex? Could it be unstable? The expression calculator program is a common homework for computer science students, and it's widely used as a teaching and practicing purpose for developers. The algorithm is pretty well-known. The behavior can be clearly defined, it is stable.
This commit is contained in:
parent
ecf34fcd89
commit
5b89670a31
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@ -141,55 +141,6 @@ func FileSize(s int64) string {
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return humanize.IBytes(uint64(s))
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return humanize.IBytes(uint64(s))
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}
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}
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// Subtract deals with subtraction of all types of number.
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func Subtract(left, right interface{}) interface{} {
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var rleft, rright int64
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var fleft, fright float64
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isInt := true
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switch v := left.(type) {
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case int:
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rleft = int64(v)
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case int8:
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rleft = int64(v)
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case int16:
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rleft = int64(v)
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case int32:
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rleft = int64(v)
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case int64:
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rleft = v
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case float32:
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fleft = float64(v)
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isInt = false
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case float64:
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fleft = v
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isInt = false
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}
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switch v := right.(type) {
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case int:
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rright = int64(v)
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case int8:
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rright = int64(v)
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case int16:
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rright = int64(v)
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case int32:
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rright = int64(v)
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case int64:
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rright = v
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case float32:
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fright = float64(v)
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isInt = false
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case float64:
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fright = v
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isInt = false
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}
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if isInt {
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return rleft - rright
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}
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return fleft + float64(rleft) - (fright + float64(rright))
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}
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// EllipsisString returns a truncated short string,
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// EllipsisString returns a truncated short string,
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// it appends '...' in the end of the length of string is too large.
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// it appends '...' in the end of the length of string is too large.
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func EllipsisString(str string, length int) string {
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func EllipsisString(str string, length int) string {
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@ -114,45 +114,6 @@ func TestFileSize(t *testing.T) {
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assert.Equal(t, "2.0 EiB", FileSize(size))
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assert.Equal(t, "2.0 EiB", FileSize(size))
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}
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}
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func TestSubtract(t *testing.T) {
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toFloat64 := func(n interface{}) float64 {
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switch v := n.(type) {
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case int:
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return float64(v)
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case int8:
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return float64(v)
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case int16:
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return float64(v)
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case int32:
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return float64(v)
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case int64:
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return float64(v)
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case float32:
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return float64(v)
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case float64:
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return v
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default:
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return 0.0
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}
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}
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values := []interface{}{
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int(-3),
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int8(14),
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int16(81),
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int32(-156),
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int64(1528),
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float32(3.5),
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float64(-15.348),
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}
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for _, left := range values {
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for _, right := range values {
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expected := toFloat64(left) - toFloat64(right)
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sub := Subtract(left, right)
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assert.InDelta(t, expected, sub, 1e-3)
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}
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}
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}
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func TestEllipsisString(t *testing.T) {
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func TestEllipsisString(t *testing.T) {
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assert.Equal(t, "...", EllipsisString("foobar", 0))
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assert.Equal(t, "...", EllipsisString("foobar", 0))
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assert.Equal(t, "...", EllipsisString("foobar", 1))
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assert.Equal(t, "...", EllipsisString("foobar", 1))
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@ -0,0 +1,344 @@
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// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package eval
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import (
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"fmt"
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"strconv"
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"strings"
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"code.gitea.io/gitea/modules/util"
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)
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type Num struct {
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Value any // int64 or float64, nil on error
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}
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var opPrecedence = map[string]int{
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// "(": 1, this is for low precedence like function calls, they are handled separately
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"or": 2,
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"and": 3,
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"not": 4,
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"==": 5, "!=": 5, "<": 5, "<=": 5, ">": 5, ">=": 5,
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"+": 6, "-": 6,
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"*": 7, "/": 7,
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}
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type stack[T any] struct {
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name string
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elems []T
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}
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func (s *stack[T]) push(t T) {
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s.elems = append(s.elems, t)
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}
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func (s *stack[T]) pop() T {
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if len(s.elems) == 0 {
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panic(s.name + " stack is empty")
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}
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t := s.elems[len(s.elems)-1]
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s.elems = s.elems[:len(s.elems)-1]
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return t
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}
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func (s *stack[T]) peek() T {
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if len(s.elems) == 0 {
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panic(s.name + " stack is empty")
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}
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return s.elems[len(s.elems)-1]
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}
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type operator string
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type eval struct {
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stackNum stack[Num]
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stackOp stack[operator]
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funcMap map[string]func([]Num) Num
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}
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func newEval() *eval {
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e := &eval{}
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e.stackNum.name = "num"
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e.stackOp.name = "op"
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return e
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}
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func toNum(v any) (Num, error) {
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switch v := v.(type) {
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case string:
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if strings.Contains(v, ".") {
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n, err := strconv.ParseFloat(v, 64)
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if err != nil {
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return Num{n}, err
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}
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return Num{n}, nil
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}
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n, err := strconv.ParseInt(v, 10, 64)
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if err != nil {
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return Num{n}, err
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}
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return Num{n}, nil
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case float32, float64:
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n, _ := util.ToFloat64(v)
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return Num{n}, nil
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default:
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n, err := util.ToInt64(v)
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if err != nil {
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return Num{n}, err
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}
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return Num{n}, nil
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}
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}
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func truth(b bool) int64 {
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if b {
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return int64(1)
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}
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return int64(0)
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}
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func applyOp2Generic[T int64 | float64](op operator, n1, n2 T) Num {
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switch op {
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case "+":
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return Num{n1 + n2}
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case "-":
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return Num{n1 - n2}
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case "*":
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return Num{n1 * n2}
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case "/":
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return Num{n1 / n2}
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case "==":
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return Num{truth(n1 == n2)}
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case "!=":
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return Num{truth(n1 != n2)}
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case "<":
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return Num{truth(n1 < n2)}
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case "<=":
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return Num{truth(n1 <= n2)}
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case ">":
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return Num{truth(n1 > n2)}
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case ">=":
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return Num{truth(n1 >= n2)}
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case "and":
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t1, _ := util.ToFloat64(n1)
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t2, _ := util.ToFloat64(n2)
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return Num{truth(t1 != 0 && t2 != 0)}
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case "or":
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t1, _ := util.ToFloat64(n1)
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t2, _ := util.ToFloat64(n2)
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return Num{truth(t1 != 0 || t2 != 0)}
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}
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panic("unknown operator: " + string(op))
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}
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func applyOp2(op operator, n1, n2 Num) Num {
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float := false
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if _, ok := n1.Value.(float64); ok {
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float = true
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} else if _, ok = n2.Value.(float64); ok {
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float = true
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}
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if float {
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f1, _ := util.ToFloat64(n1.Value)
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f2, _ := util.ToFloat64(n2.Value)
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return applyOp2Generic(op, f1, f2)
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}
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return applyOp2Generic(op, n1.Value.(int64), n2.Value.(int64))
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}
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func toOp(v any) (operator, error) {
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if v, ok := v.(string); ok {
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return operator(v), nil
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}
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return "", fmt.Errorf(`unsupported token type "%T"`, v)
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}
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func (op operator) hasOpenBracket() bool {
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return strings.HasSuffix(string(op), "(") // it's used to support functions like "sum("
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}
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func (op operator) isComma() bool {
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return op == ","
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}
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func (op operator) isCloseBracket() bool {
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return op == ")"
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}
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type ExprError struct {
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msg string
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tokens []any
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err error
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}
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func (err ExprError) Error() string {
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sb := strings.Builder{}
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sb.WriteString(err.msg)
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sb.WriteString(" [ ")
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for _, token := range err.tokens {
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_, _ = fmt.Fprintf(&sb, `"%v" `, token)
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}
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sb.WriteString("]")
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if err.err != nil {
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sb.WriteString(": ")
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sb.WriteString(err.err.Error())
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}
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return sb.String()
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}
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func (err ExprError) Unwrap() error {
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return err.err
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}
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func (e *eval) applyOp() {
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op := e.stackOp.pop()
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if op == "not" {
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num := e.stackNum.pop()
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i, _ := util.ToInt64(num.Value)
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e.stackNum.push(Num{truth(i == 0)})
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} else if op.hasOpenBracket() || op.isCloseBracket() || op.isComma() {
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panic(fmt.Sprintf("incomplete sub-expression with operator %q", op))
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} else {
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num2 := e.stackNum.pop()
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num1 := e.stackNum.pop()
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e.stackNum.push(applyOp2(op, num1, num2))
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}
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}
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func (e *eval) exec(tokens ...any) (ret Num, err error) {
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defer func() {
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if r := recover(); r != nil {
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rErr, ok := r.(error)
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if !ok {
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rErr = fmt.Errorf("%v", r)
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}
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err = ExprError{"invalid expression", tokens, rErr}
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}
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}()
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for _, token := range tokens {
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n, err := toNum(token)
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if err == nil {
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e.stackNum.push(n)
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continue
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}
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op, err := toOp(token)
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if err != nil {
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return Num{}, ExprError{"invalid expression", tokens, err}
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}
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switch {
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case op.hasOpenBracket():
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e.stackOp.push(op)
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case op.isCloseBracket(), op.isComma():
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var stackTopOp operator
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for len(e.stackOp.elems) > 0 {
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stackTopOp = e.stackOp.peek()
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if stackTopOp.hasOpenBracket() || stackTopOp.isComma() {
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break
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}
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e.applyOp()
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}
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if op.isCloseBracket() {
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nums := []Num{e.stackNum.pop()}
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for !e.stackOp.peek().hasOpenBracket() {
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stackTopOp = e.stackOp.pop()
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if !stackTopOp.isComma() {
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return Num{}, ExprError{"bracket doesn't match", tokens, nil}
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}
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nums = append(nums, e.stackNum.pop())
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}
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for i, j := 0, len(nums)-1; i < j; i, j = i+1, j-1 {
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nums[i], nums[j] = nums[j], nums[i] // reverse nums slice, to get the right order for arguments
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}
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stackTopOp = e.stackOp.pop()
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fn := string(stackTopOp[:len(stackTopOp)-1])
|
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|
if fn == "" {
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|
if len(nums) != 1 {
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return Num{}, ExprError{"too many values in one bracket", tokens, nil}
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|
}
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|
e.stackNum.push(nums[0])
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|
} else if f, ok := e.funcMap[fn]; ok {
|
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|
e.stackNum.push(f(nums))
|
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|
} else {
|
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|
return Num{}, ExprError{"unknown function: " + fn, tokens, nil}
|
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|
}
|
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|
} else {
|
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|
e.stackOp.push(op)
|
||||||
|
}
|
||||||
|
default:
|
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|
for len(e.stackOp.elems) > 0 && len(e.stackNum.elems) > 0 {
|
||||||
|
stackTopOp := e.stackOp.peek()
|
||||||
|
if stackTopOp.hasOpenBracket() || stackTopOp.isComma() || precedence(stackTopOp, op) < 0 {
|
||||||
|
break
|
||||||
|
}
|
||||||
|
e.applyOp()
|
||||||
|
}
|
||||||
|
e.stackOp.push(op)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
for len(e.stackOp.elems) > 0 && !e.stackOp.peek().isComma() {
|
||||||
|
e.applyOp()
|
||||||
|
}
|
||||||
|
if len(e.stackNum.elems) != 1 {
|
||||||
|
return Num{}, ExprError{fmt.Sprintf("expect 1 value as final result, but there are %d", len(e.stackNum.elems)), tokens, nil}
|
||||||
|
}
|
||||||
|
return e.stackNum.pop(), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func precedence(op1, op2 operator) int {
|
||||||
|
p1 := opPrecedence[string(op1)]
|
||||||
|
p2 := opPrecedence[string(op2)]
|
||||||
|
if p1 == 0 {
|
||||||
|
panic("unknown operator precedence: " + string(op1))
|
||||||
|
} else if p2 == 0 {
|
||||||
|
panic("unknown operator precedence: " + string(op2))
|
||||||
|
}
|
||||||
|
return p1 - p2
|
||||||
|
}
|
||||||
|
|
||||||
|
func castFloat64(nums []Num) bool {
|
||||||
|
hasFloat := false
|
||||||
|
for _, num := range nums {
|
||||||
|
if _, hasFloat = num.Value.(float64); hasFloat {
|
||||||
|
break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if hasFloat {
|
||||||
|
for i, num := range nums {
|
||||||
|
if _, ok := num.Value.(float64); !ok {
|
||||||
|
f, _ := util.ToFloat64(num.Value)
|
||||||
|
nums[i] = Num{f}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return hasFloat
|
||||||
|
}
|
||||||
|
|
||||||
|
func fnSum(nums []Num) Num {
|
||||||
|
if castFloat64(nums) {
|
||||||
|
var sum float64
|
||||||
|
for _, num := range nums {
|
||||||
|
sum += num.Value.(float64)
|
||||||
|
}
|
||||||
|
return Num{sum}
|
||||||
|
}
|
||||||
|
var sum int64
|
||||||
|
for _, num := range nums {
|
||||||
|
sum += num.Value.(int64)
|
||||||
|
}
|
||||||
|
return Num{sum}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Expr evaluates the given expression tokens and returns the result.
|
||||||
|
// It supports the following operators: +, -, *, /, and, or, not, ==, !=, >, >=, <, <=.
|
||||||
|
// Non-zero values are treated as true, zero values are treated as false.
|
||||||
|
// If no error occurs, the result is either an int64 or a float64.
|
||||||
|
// If all numbers are integer, the result is an int64, otherwise if there is any float number, the result is a float64.
|
||||||
|
func Expr(tokens ...any) (Num, error) {
|
||||||
|
e := newEval()
|
||||||
|
e.funcMap = map[string]func([]Num) Num{"sum": fnSum}
|
||||||
|
return e.exec(tokens...)
|
||||||
|
}
|
|
@ -0,0 +1,94 @@
|
||||||
|
// Copyright 2023 The Gitea Authors. All rights reserved.
|
||||||
|
// SPDX-License-Identifier: MIT
|
||||||
|
|
||||||
|
package eval
|
||||||
|
|
||||||
|
import (
|
||||||
|
"math"
|
||||||
|
"strings"
|
||||||
|
"testing"
|
||||||
|
|
||||||
|
"github.com/stretchr/testify/assert"
|
||||||
|
)
|
||||||
|
|
||||||
|
func tokens(s string) (a []any) {
|
||||||
|
for _, v := range strings.Fields(s) {
|
||||||
|
a = append(a, v)
|
||||||
|
}
|
||||||
|
return a
|
||||||
|
}
|
||||||
|
|
||||||
|
func TestEval(t *testing.T) {
|
||||||
|
n, err := Expr(0, "/", 0.0)
|
||||||
|
assert.NoError(t, err)
|
||||||
|
assert.True(t, math.IsNaN(n.Value.(float64)))
|
||||||
|
|
||||||
|
_, err = Expr(nil)
|
||||||
|
assert.ErrorContains(t, err, "unsupported token type")
|
||||||
|
_, err = Expr([]string{})
|
||||||
|
assert.ErrorContains(t, err, "unsupported token type")
|
||||||
|
_, err = Expr(struct{}{})
|
||||||
|
assert.ErrorContains(t, err, "unsupported token type")
|
||||||
|
|
||||||
|
cases := []struct {
|
||||||
|
expr string
|
||||||
|
want any
|
||||||
|
}{
|
||||||
|
{"-1", int64(-1)},
|
||||||
|
{"1 + 2", int64(3)},
|
||||||
|
{"3 - 2 + 4", int64(5)},
|
||||||
|
{"1 + 2 * 3", int64(7)},
|
||||||
|
{"1 + ( 2 * 3 )", int64(7)},
|
||||||
|
{"( 1 + 2 ) * 3", int64(9)},
|
||||||
|
{"( 1 + 2.0 ) / 3", float64(1)},
|
||||||
|
{"sum( 1 , 2 , 3 , 4 )", int64(10)},
|
||||||
|
{"100 + sum( 1 , 2 + 3 , 0.0 ) / 2", float64(103)},
|
||||||
|
{"100 * 5 / ( 5 + 15 )", int64(25)},
|
||||||
|
{"9 == 5", int64(0)},
|
||||||
|
{"5 == 5", int64(1)},
|
||||||
|
{"9 != 5", int64(1)},
|
||||||
|
{"5 != 5", int64(0)},
|
||||||
|
{"9 > 5", int64(1)},
|
||||||
|
{"5 > 9", int64(0)},
|
||||||
|
{"5 >= 9", int64(0)},
|
||||||
|
{"9 >= 9", int64(1)},
|
||||||
|
{"9 < 5", int64(0)},
|
||||||
|
{"5 < 9", int64(1)},
|
||||||
|
{"9 <= 5", int64(0)},
|
||||||
|
{"5 <= 5", int64(1)},
|
||||||
|
{"1 and 2", int64(1)}, // Golang template definition: non-zero values are all truth
|
||||||
|
{"1 and 0", int64(0)},
|
||||||
|
{"0 and 0", int64(0)},
|
||||||
|
{"1 or 2", int64(1)},
|
||||||
|
{"1 or 0", int64(1)},
|
||||||
|
{"0 or 1", int64(1)},
|
||||||
|
{"0 or 0", int64(0)},
|
||||||
|
{"not 2 == 1", int64(1)},
|
||||||
|
{"not not ( 9 < 5 )", int64(0)},
|
||||||
|
}
|
||||||
|
|
||||||
|
for _, c := range cases {
|
||||||
|
n, err := Expr(tokens(c.expr)...)
|
||||||
|
if assert.NoError(t, err, "expr: %s", c.expr) {
|
||||||
|
assert.Equal(t, c.want, n.Value)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bads := []struct {
|
||||||
|
expr string
|
||||||
|
errMsg string
|
||||||
|
}{
|
||||||
|
{"0 / 0", "integer divide by zero"},
|
||||||
|
{"1 +", "num stack is empty"},
|
||||||
|
{"+ 1", "num stack is empty"},
|
||||||
|
{"( 1", "incomplete sub-expression"},
|
||||||
|
{"1 )", "op stack is empty"}, // can not find the corresponding open bracket after the stack becomes empty
|
||||||
|
{"1 , 2", "expect 1 value as final result"},
|
||||||
|
{"( 1 , 2 )", "too many values in one bracket"},
|
||||||
|
{"1 a 2", "unknown operator"},
|
||||||
|
}
|
||||||
|
for _, c := range bads {
|
||||||
|
_, err = Expr(tokens(c.expr)...)
|
||||||
|
assert.ErrorContains(t, err, c.errMsg, "expr: %s", c.expr)
|
||||||
|
}
|
||||||
|
}
|
|
@ -42,6 +42,7 @@ import (
|
||||||
"code.gitea.io/gitea/modules/repository"
|
"code.gitea.io/gitea/modules/repository"
|
||||||
"code.gitea.io/gitea/modules/setting"
|
"code.gitea.io/gitea/modules/setting"
|
||||||
"code.gitea.io/gitea/modules/svg"
|
"code.gitea.io/gitea/modules/svg"
|
||||||
|
"code.gitea.io/gitea/modules/templates/eval"
|
||||||
"code.gitea.io/gitea/modules/timeutil"
|
"code.gitea.io/gitea/modules/timeutil"
|
||||||
"code.gitea.io/gitea/modules/util"
|
"code.gitea.io/gitea/modules/util"
|
||||||
"code.gitea.io/gitea/services/gitdiff"
|
"code.gitea.io/gitea/services/gitdiff"
|
||||||
|
@ -105,24 +106,9 @@ func NewFuncMap() []template.FuncMap {
|
||||||
"TimeSinceUnix": timeutil.TimeSinceUnix,
|
"TimeSinceUnix": timeutil.TimeSinceUnix,
|
||||||
"FileSize": base.FileSize,
|
"FileSize": base.FileSize,
|
||||||
"LocaleNumber": LocaleNumber,
|
"LocaleNumber": LocaleNumber,
|
||||||
"Subtract": base.Subtract,
|
|
||||||
"EntryIcon": base.EntryIcon,
|
"EntryIcon": base.EntryIcon,
|
||||||
"MigrationIcon": MigrationIcon,
|
"MigrationIcon": MigrationIcon,
|
||||||
"Add": func(a ...int) int {
|
"ActionIcon": ActionIcon,
|
||||||
sum := 0
|
|
||||||
for _, val := range a {
|
|
||||||
sum += val
|
|
||||||
}
|
|
||||||
return sum
|
|
||||||
},
|
|
||||||
"Mul": func(a ...int) int {
|
|
||||||
sum := 1
|
|
||||||
for _, val := range a {
|
|
||||||
sum *= val
|
|
||||||
}
|
|
||||||
return sum
|
|
||||||
},
|
|
||||||
"ActionIcon": ActionIcon,
|
|
||||||
"DateFmtLong": func(t time.Time) string {
|
"DateFmtLong": func(t time.Time) string {
|
||||||
return t.Format(time.RFC1123Z)
|
return t.Format(time.RFC1123Z)
|
||||||
},
|
},
|
||||||
|
@ -377,7 +363,7 @@ func NewFuncMap() []template.FuncMap {
|
||||||
"QueryEscape": url.QueryEscape,
|
"QueryEscape": url.QueryEscape,
|
||||||
"DotEscape": DotEscape,
|
"DotEscape": DotEscape,
|
||||||
"Iterate": func(arg interface{}) (items []int64) {
|
"Iterate": func(arg interface{}) (items []int64) {
|
||||||
count := util.ToInt64(arg)
|
count, _ := util.ToInt64(arg)
|
||||||
for i := int64(0); i < count; i++ {
|
for i := int64(0); i < count; i++ {
|
||||||
items = append(items, i)
|
items = append(items, i)
|
||||||
}
|
}
|
||||||
|
@ -397,6 +383,7 @@ func NewFuncMap() []template.FuncMap {
|
||||||
curBranch,
|
curBranch,
|
||||||
)
|
)
|
||||||
},
|
},
|
||||||
|
"Eval": Eval,
|
||||||
}}
|
}}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -472,28 +459,8 @@ func NewTextFuncMap() []texttmpl.FuncMap {
|
||||||
}
|
}
|
||||||
return dict, nil
|
return dict, nil
|
||||||
},
|
},
|
||||||
"percentage": func(n int, values ...int) float32 {
|
|
||||||
sum := 0
|
|
||||||
for i := 0; i < len(values); i++ {
|
|
||||||
sum += values[i]
|
|
||||||
}
|
|
||||||
return float32(n) * 100 / float32(sum)
|
|
||||||
},
|
|
||||||
"Add": func(a ...int) int {
|
|
||||||
sum := 0
|
|
||||||
for _, val := range a {
|
|
||||||
sum += val
|
|
||||||
}
|
|
||||||
return sum
|
|
||||||
},
|
|
||||||
"Mul": func(a ...int) int {
|
|
||||||
sum := 1
|
|
||||||
for _, val := range a {
|
|
||||||
sum *= val
|
|
||||||
}
|
|
||||||
return sum
|
|
||||||
},
|
|
||||||
"QueryEscape": url.QueryEscape,
|
"QueryEscape": url.QueryEscape,
|
||||||
|
"Eval": Eval,
|
||||||
}}
|
}}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -944,6 +911,18 @@ func mirrorRemoteAddress(ctx context.Context, m *repo_model.Repository, remoteNa
|
||||||
|
|
||||||
// LocaleNumber renders a number with a Custom Element, browser will render it with a locale number
|
// LocaleNumber renders a number with a Custom Element, browser will render it with a locale number
|
||||||
func LocaleNumber(v interface{}) template.HTML {
|
func LocaleNumber(v interface{}) template.HTML {
|
||||||
num := util.ToInt64(v)
|
num, _ := util.ToInt64(v)
|
||||||
return template.HTML(fmt.Sprintf(`<gitea-locale-number data-number="%d">%d</gitea-locale-number>`, num, num))
|
return template.HTML(fmt.Sprintf(`<gitea-locale-number data-number="%d">%d</gitea-locale-number>`, num, num))
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// Eval the expression and return the result, see the comment of eval.Expr for details.
|
||||||
|
// To use this helper function in templates, pass each token as a separate parameter.
|
||||||
|
//
|
||||||
|
// {{ $int64 := Eval $var "+" 1 }}
|
||||||
|
// {{ $float64 := Eval $var "+" 1.0 }}
|
||||||
|
//
|
||||||
|
// Golang's template supports comparable int types, so the int64 result can be used in later statements like {{if lt $int64 10}}
|
||||||
|
func Eval(tokens ...any) (any, error) {
|
||||||
|
n, err := eval.Expr(tokens...)
|
||||||
|
return n.Value, err
|
||||||
|
}
|
||||||
|
|
|
@ -9,7 +9,6 @@ import (
|
||||||
"errors"
|
"errors"
|
||||||
"fmt"
|
"fmt"
|
||||||
"math/big"
|
"math/big"
|
||||||
"os"
|
|
||||||
"strconv"
|
"strconv"
|
||||||
"strings"
|
"strings"
|
||||||
|
|
||||||
|
@ -198,14 +197,8 @@ func ToTitleCaseNoLower(s string) string {
|
||||||
return cases.Title(language.English, cases.NoLower).String(s)
|
return cases.Title(language.English, cases.NoLower).String(s)
|
||||||
}
|
}
|
||||||
|
|
||||||
func logError(msg string, args ...any) {
|
|
||||||
// TODO: the "util" package can not import the "modules/log" package, so we use the "fmt" package here temporarily.
|
|
||||||
// In the future, we should decouple the dependency between them.
|
|
||||||
_, _ = fmt.Fprintf(os.Stderr, msg, args...)
|
|
||||||
}
|
|
||||||
|
|
||||||
// ToInt64 transform a given int into int64.
|
// ToInt64 transform a given int into int64.
|
||||||
func ToInt64(number interface{}) int64 {
|
func ToInt64(number interface{}) (int64, error) {
|
||||||
var value int64
|
var value int64
|
||||||
switch v := number.(type) {
|
switch v := number.(type) {
|
||||||
case int:
|
case int:
|
||||||
|
@ -218,6 +211,7 @@ func ToInt64(number interface{}) int64 {
|
||||||
value = int64(v)
|
value = int64(v)
|
||||||
case int64:
|
case int64:
|
||||||
value = v
|
value = v
|
||||||
|
|
||||||
case uint:
|
case uint:
|
||||||
value = int64(v)
|
value = int64(v)
|
||||||
case uint8:
|
case uint8:
|
||||||
|
@ -228,13 +222,61 @@ func ToInt64(number interface{}) int64 {
|
||||||
value = int64(v)
|
value = int64(v)
|
||||||
case uint64:
|
case uint64:
|
||||||
value = int64(v)
|
value = int64(v)
|
||||||
|
|
||||||
|
case float32:
|
||||||
|
value = int64(v)
|
||||||
|
case float64:
|
||||||
|
value = int64(v)
|
||||||
|
|
||||||
case string:
|
case string:
|
||||||
var err error
|
var err error
|
||||||
if value, err = strconv.ParseInt(v, 10, 64); err != nil {
|
if value, err = strconv.ParseInt(v, 10, 64); err != nil {
|
||||||
logError("strconv.ParseInt failed for %q: %v", v, err)
|
return 0, err
|
||||||
}
|
}
|
||||||
default:
|
default:
|
||||||
logError("unable to convert %q to int64", v)
|
return 0, fmt.Errorf("unable to convert %v to int64", number)
|
||||||
}
|
}
|
||||||
return value
|
return value, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// ToFloat64 transform a given int into float64.
|
||||||
|
func ToFloat64(number interface{}) (float64, error) {
|
||||||
|
var value float64
|
||||||
|
switch v := number.(type) {
|
||||||
|
case int:
|
||||||
|
value = float64(v)
|
||||||
|
case int8:
|
||||||
|
value = float64(v)
|
||||||
|
case int16:
|
||||||
|
value = float64(v)
|
||||||
|
case int32:
|
||||||
|
value = float64(v)
|
||||||
|
case int64:
|
||||||
|
value = float64(v)
|
||||||
|
|
||||||
|
case uint:
|
||||||
|
value = float64(v)
|
||||||
|
case uint8:
|
||||||
|
value = float64(v)
|
||||||
|
case uint16:
|
||||||
|
value = float64(v)
|
||||||
|
case uint32:
|
||||||
|
value = float64(v)
|
||||||
|
case uint64:
|
||||||
|
value = float64(v)
|
||||||
|
|
||||||
|
case float32:
|
||||||
|
value = float64(v)
|
||||||
|
case float64:
|
||||||
|
value = v
|
||||||
|
|
||||||
|
case string:
|
||||||
|
var err error
|
||||||
|
if value, err = strconv.ParseFloat(v, 64); err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
default:
|
||||||
|
return 0, fmt.Errorf("unable to convert %v to float64", number)
|
||||||
|
}
|
||||||
|
return value, nil
|
||||||
}
|
}
|
||||||
|
|
|
@ -69,11 +69,12 @@
|
||||||
<div class="commit-divergence">
|
<div class="commit-divergence">
|
||||||
<div class="bar-group">
|
<div class="bar-group">
|
||||||
<div class="count count-behind">{{.CommitsBehind}}</div>
|
<div class="count count-behind">{{.CommitsBehind}}</div>
|
||||||
<div class="bar bar-behind" style="width: {{percentage .CommitsBehind .CommitsBehind .CommitsAhead}}%"></div>
|
{{/* old code bears 0/0.0 = NaN output, so it might output invalid "width: NaNpx", it just works and doesn't caues any problem. */}}
|
||||||
|
<div class="bar bar-behind" style="width: {{Eval 100 "*" .CommitsBehind "/" "(" .CommitsBehind "+" .CommitsAhead "+" 0.0 ")"}}%"></div>
|
||||||
</div>
|
</div>
|
||||||
<div class="bar-group">
|
<div class="bar-group">
|
||||||
<div class="count count-ahead">{{.CommitsAhead}}</div>
|
<div class="count count-ahead">{{.CommitsAhead}}</div>
|
||||||
<div class="bar bar-ahead" style="width: {{percentage .CommitsAhead .CommitsBehind .CommitsAhead}}%"></div>
|
<div class="bar bar-ahead" style="width: {{Eval 100 "*" .CommitsAhead "/" "(" .CommitsBehind "+" .CommitsAhead "+" 0.0 ")"}}%"></div>
|
||||||
</div>
|
</div>
|
||||||
</div>
|
</div>
|
||||||
{{end}}
|
{{end}}
|
||||||
|
|
|
@ -2,7 +2,7 @@
|
||||||
<div class="timeline-item commits-list">
|
<div class="timeline-item commits-list">
|
||||||
{{range .comment.Commits}}
|
{{range .comment.Commits}}
|
||||||
{{$tag := printf "%s-%d" $.comment.HashTag $index}}
|
{{$tag := printf "%s-%d" $.comment.HashTag $index}}
|
||||||
{{$index = Add $index 1}}
|
{{$index = Eval $index "+" 1}}
|
||||||
<div class="singular-commit" id="{{$tag}}">
|
<div class="singular-commit" id="{{$tag}}">
|
||||||
<span class="badge badge-commit">{{svg "octicon-git-commit"}}</span>
|
<span class="badge badge-commit">{{svg "octicon-git-commit"}}</span>
|
||||||
{{if .User}}
|
{{if .User}}
|
||||||
|
|
|
@ -1,4 +1,4 @@
|
||||||
{{Add .file.Addition .file.Deletion}}
|
{{Eval .file.Addition "+" .file.Deletion}}
|
||||||
<span class="diff-stats-bar gt-mx-3" data-tooltip-content="{{.root.locale.Tr "repo.diff.stats_desc_file" (Add .file.Addition .file.Deletion) .file.Addition .file.Deletion | Str2html}}">
|
<span class="diff-stats-bar gt-mx-3" data-tooltip-content="{{.root.locale.Tr "repo.diff.stats_desc_file" (Eval .file.Addition "+" .file.Deletion) .file.Addition .file.Deletion | Str2html}}">
|
||||||
<div class="diff-stats-add-bar" style="width: {{DiffStatsWidth .file.Addition .file.Deletion}}%"></div>
|
<div class="diff-stats-add-bar" style="width: {{DiffStatsWidth .file.Addition .file.Deletion}}%"></div>
|
||||||
</span>
|
</span>
|
||||||
|
|
|
@ -12,7 +12,7 @@
|
||||||
<div class="ui breadcrumb field {{if .Err_TreePath}}error{{end}}">
|
<div class="ui breadcrumb field {{if .Err_TreePath}}error{{end}}">
|
||||||
<a class="section" href="{{$.BranchLink}}">{{.Repository.Name}}</a>
|
<a class="section" href="{{$.BranchLink}}">{{.Repository.Name}}</a>
|
||||||
{{$n := len .TreeNames}}
|
{{$n := len .TreeNames}}
|
||||||
{{$l := Subtract $n 1}}
|
{{$l := Eval $n "-" 1}}
|
||||||
{{range $i, $v := .TreeNames}}
|
{{range $i, $v := .TreeNames}}
|
||||||
<div class="divider"> / </div>
|
<div class="divider"> / </div>
|
||||||
{{if eq $i $l}}
|
{{if eq $i $l}}
|
||||||
|
|
|
@ -10,7 +10,7 @@
|
||||||
<div class="ui breadcrumb field {{if .Err_TreePath}}error{{end}}">
|
<div class="ui breadcrumb field {{if .Err_TreePath}}error{{end}}">
|
||||||
<a class="section" href="{{$.BranchLink}}">{{.Repository.Name}}</a>
|
<a class="section" href="{{$.BranchLink}}">{{.Repository.Name}}</a>
|
||||||
{{$n := len .TreeNames}}
|
{{$n := len .TreeNames}}
|
||||||
{{$l := Subtract $n 1}}
|
{{$l := Eval $n "-" 1}}
|
||||||
{{range $i, $v := .TreeNames}}
|
{{range $i, $v := .TreeNames}}
|
||||||
<div class="divider"> / </div>
|
<div class="divider"> / </div>
|
||||||
{{if eq $i $l}}
|
{{if eq $i $l}}
|
||||||
|
|
|
@ -1,22 +1,22 @@
|
||||||
<div id="rel-container">
|
<div id="rel-container">
|
||||||
<svg viewbox="{{Mul .Graph.MinColumn 5}} {{Mul .Graph.MinRow 12}} {{Add (Mul .Graph.Width 5) 5}} {{Mul .Graph.Height 12}}" width="{{Add (Mul .Graph.Width 10) 10}}px">
|
<svg viewbox="{{Eval .Graph.MinColumn "*" 5}} {{Eval .Graph.MinRow "*" 12}} {{Eval .Graph.Width "*" 5 "+" 5}} {{Eval .Graph.Height "*" 12}}" width="{{Eval .Graph.Width "*" 10 "+" 10}}px">
|
||||||
{{range $flowid, $flow := .Graph.Flows}}
|
{{range $flowid, $flow := .Graph.Flows}}
|
||||||
<g id="flow-{{$flow.ID}}" class="flow-group flow-color-{{$flow.ColorNumber}} flow-color-16-{{$flow.Color16}}" data-flow="{{$flow.ID}}" data-color="{{$flow.ColorNumber}}">
|
<g id="flow-{{$flow.ID}}" class="flow-group flow-color-{{$flow.ColorNumber}} flow-color-16-{{$flow.Color16}}" data-flow="{{$flow.ID}}" data-color="{{$flow.ColorNumber}}">
|
||||||
<path d="{{range $i, $glyph := $flow.Glyphs -}}
|
<path d="{{range $i, $glyph := $flow.Glyphs -}}
|
||||||
{{- if or (eq $glyph.Glyph '*') (eq $glyph.Glyph '|') -}}
|
{{- if or (eq $glyph.Glyph '*') (eq $glyph.Glyph '|') -}}
|
||||||
M {{Add (Mul $glyph.Column 5) 5}} {{Add (Mul $glyph.Row 12) 0}} v 12 {{/* */ -}}
|
M {{Eval $glyph.Column "*" 5 "+" 5}} {{Eval $glyph.Row "*" 12 "+" 0}} v 12 {{/* */ -}}
|
||||||
{{- else if eq $glyph.Glyph '/' -}}
|
{{- else if eq $glyph.Glyph '/' -}}
|
||||||
M {{Add (Mul $glyph.Column 5) 10}} {{Add (Mul $glyph.Row 12) 0}} l -10 12 {{/* */ -}}
|
M {{Eval $glyph.Column "*" 5 "+" 10}} {{Eval $glyph.Row "*" 12 "+" 0}} l -10 12 {{/* */ -}}
|
||||||
{{- else if eq $glyph.Glyph '\\' -}}
|
{{- else if eq $glyph.Glyph '\\' -}}
|
||||||
M {{Add (Mul $glyph.Column 5) 0}} {{Add (Mul $glyph.Row 12) 0}} l 10 12 {{/* */ -}}
|
M {{Eval $glyph.Column "*" 5 "+" 0}} {{Eval $glyph.Row "*" 12 "+" 0}} l 10 12 {{/* */ -}}
|
||||||
{{- else if or (eq $glyph.Glyph '-') (eq $glyph.Glyph '.') -}}
|
{{- else if or (eq $glyph.Glyph '-') (eq $glyph.Glyph '.') -}}
|
||||||
M {{Add (Mul $glyph.Column 5) 0}} {{Add (Mul $glyph.Row 12) 12}} h 5 {{/* */ -}}
|
M {{Eval $glyph.Column "*" 5 "+" 0}} {{Eval $glyph.Row "*" 12 "+" 12}} h 5 {{/* */ -}}
|
||||||
{{- else if eq $glyph.Glyph '_' -}}
|
{{- else if eq $glyph.Glyph '_' -}}
|
||||||
M {{Add (Mul $glyph.Column 5) 0}} {{Add (Mul $glyph.Row 12) 12}} h 10 {{/* */ -}}
|
M {{Eval $glyph.Column "*" 5 "+" 0}} {{Eval $glyph.Row "*" 12 "+" 12}} h 10 {{/* */ -}}
|
||||||
{{- end -}}
|
{{- end -}}
|
||||||
{{- end}}" stroke-width="1" fill="none" id="flow-{{$flow.ID}}-path" stroke-linecap="round"></path>
|
{{- end}}" stroke-width="1" fill="none" id="flow-{{$flow.ID}}-path" stroke-linecap="round"></path>
|
||||||
{{range $flow.Commits}}
|
{{range $flow.Commits}}
|
||||||
<circle class="flow-commit" cx="{{Add (Mul .Column 5) 5}}" cy="{{Add (Mul .Row 12) 6}}" r="2.5" stroke="none" id="flow-commit-{{.Rev}}" data-rev="{{.Rev}}"></circle>
|
<circle class="flow-commit" cx="{{Eval .Column "*" 5 "+" 5}}" cy="{{Eval .Row "*" 12 "+" 6}}" r="2.5" stroke="none" id="flow-commit-{{.Rev}}" data-rev="{{.Rev}}"></circle>
|
||||||
{{end}}
|
{{end}}
|
||||||
</g>
|
</g>
|
||||||
{{end}}
|
{{end}}
|
||||||
|
|
|
@ -37,7 +37,7 @@
|
||||||
<div class="ui form gt-hidden gt-df gt-mt-4" id="topic_edit">
|
<div class="ui form gt-hidden gt-df gt-mt-4" id="topic_edit">
|
||||||
<div class="field gt-f1 gt-mr-3">
|
<div class="field gt-f1 gt-mr-3">
|
||||||
<div class="ui fluid multiple search selection dropdown" data-text-count-prompt="{{.locale.Tr "repo.topic.count_prompt"}}" data-text-format-prompt="{{.locale.Tr "repo.topic.format_prompt"}}">
|
<div class="ui fluid multiple search selection dropdown" data-text-count-prompt="{{.locale.Tr "repo.topic.count_prompt"}}" data-text-format-prompt="{{.locale.Tr "repo.topic.format_prompt"}}">
|
||||||
<input type="hidden" name="topics" value="{{range $i, $v := .Topics}}{{.Name}}{{if lt (Add $i 1) (len $.Topics)}},{{end}}{{end}}">
|
<input type="hidden" name="topics" value="{{range $i, $v := .Topics}}{{.Name}}{{if Eval $i "+" 1 "<" (len $.Topics)}},{{end}}{{end}}">
|
||||||
{{range .Topics}}
|
{{range .Topics}}
|
||||||
{{/* keey the same layout as Fomantic UI generated labels */}}
|
{{/* keey the same layout as Fomantic UI generated labels */}}
|
||||||
<a class="ui label transition visible gt-cursor-default" data-value="{{.Name}}" style="display: inline-block !important;">{{.Name}}{{svg "octicon-x" 16 "delete icon"}}</a>
|
<a class="ui label transition visible gt-cursor-default" data-value="{{.Name}}" style="display: inline-block !important;">{{.Name}}{{svg "octicon-x" 16 "delete icon"}}</a>
|
||||||
|
@ -61,7 +61,7 @@
|
||||||
<div class="gt-df gt-ac gt-fw gt-gap-y-3">
|
<div class="gt-df gt-ac gt-fw gt-gap-y-3">
|
||||||
{{template "repo/branch_dropdown" dict "root" .}}
|
{{template "repo/branch_dropdown" dict "root" .}}
|
||||||
{{$n := len .TreeNames}}
|
{{$n := len .TreeNames}}
|
||||||
{{$l := Subtract $n 1}}
|
{{$l := Eval $n "-" 1}}
|
||||||
<!-- If home page, show new pr. If not, show breadcrumb -->
|
<!-- If home page, show new pr. If not, show breadcrumb -->
|
||||||
{{if eq $n 0}}
|
{{if eq $n 0}}
|
||||||
{{if and .CanCompareOrPull .IsViewBranch (not .Repository.IsArchived)}}
|
{{if and .CanCompareOrPull .IsViewBranch (not .Repository.IsArchived)}}
|
||||||
|
|
|
@ -100,7 +100,7 @@
|
||||||
<table>
|
<table>
|
||||||
<tbody>
|
<tbody>
|
||||||
{{range $idx, $code := .FileContent}}
|
{{range $idx, $code := .FileContent}}
|
||||||
{{$line := Add $idx 1}}
|
{{$line := Eval $idx "+" 1}}
|
||||||
<tr>
|
<tr>
|
||||||
<td id="L{{$line}}" class="lines-num"><span id="L{{$line}}" data-line-number="{{$line}}"></span></td>
|
<td id="L{{$line}}" class="lines-num"><span id="L{{$line}}" data-line-number="{{$line}}"></span></td>
|
||||||
{{if $.EscapeStatus.Escaped}}
|
{{if $.EscapeStatus.Escaped}}
|
||||||
|
|
|
@ -80,8 +80,8 @@
|
||||||
</summary>
|
</summary>
|
||||||
{{$level := 0}}
|
{{$level := 0}}
|
||||||
{{range .toc}}
|
{{range .toc}}
|
||||||
{{if lt $level .Level}}{{range Iterate (Subtract .Level $level)}}<ul>{{end}}{{end}}
|
{{if lt $level .Level}}{{range Iterate (Eval .Level "-" $level)}}<ul>{{end}}{{end}}
|
||||||
{{if gt $level .Level}}{{range Iterate (Subtract $level .Level)}}</ul>{{end}}{{end}}
|
{{if gt $level .Level}}{{range Iterate (Eval $level "-" .Level)}}</ul>{{end}}{{end}}
|
||||||
{{$level = .Level}}
|
{{$level = .Level}}
|
||||||
<li><a href="#{{.ID}}">{{.Text}}</a></li>
|
<li><a href="#{{.ID}}">{{.Text}}</a></li>
|
||||||
{{end}}
|
{{end}}
|
||||||
|
|
Loading…
Reference in New Issue