2016-08-11 07:48:08 -05:00
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{{template "base/head" .}}
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2023-02-01 17:56:10 -05:00
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<div role="main" aria-label="{{.Title}}" class="page-content repository file editor edit">
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2016-08-11 07:48:08 -05:00
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{{template "repo/header" .}}
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<div class="ui container">
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{{template "base/alert" .}}
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2016-08-28 06:31:42 -05:00
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<form class="ui edit form" method="post">
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2016-08-11 07:48:08 -05:00
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{{.CsrfTokenHtml}}
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2016-08-15 01:02:14 -05:00
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<input type="hidden" name="last_commit" value="{{.last_commit}}">
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2020-08-29 16:32:46 -05:00
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<input type="hidden" name="page_has_posted" value="{{.PageHasPosted}}">
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2016-08-11 07:48:08 -05:00
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<div class="ui secondary menu">
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2016-08-15 03:42:20 -05:00
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<div class="fitted item treepath">
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2016-08-24 23:35:03 -05:00
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<div class="ui breadcrumb field {{if .Err_TreePath}}error{{end}}">
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2021-11-16 13:18:25 -05:00
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<a class="section" href="{{$.BranchLink}}">{{.Repository.Name}}</a>
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2022-08-31 10:58:54 -05:00
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{{$n := len .TreeNames}}
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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 $glyph.Row 12) 12}}`,
the old one isn't familiar to most procedural programming developers
(eg, the Golang expression syntax).
* The `Eval` is fully covered by tests, many old `Add`/`Mul`-like
functions were never tested.
### The performance?
It doesn't use `reflect`, it doesn't need to parse or compile when used
in Golang template, the performance is as fast as native Go template.
### Is it too complex? Could it be unstable?
The expression calculator program is a common homework for computer
science students, and it's widely used as a teaching and practicing
purpose for developers. The algorithm is pretty well-known.
The behavior can be clearly defined, it is stable.
2023-04-07 08:25:49 -05:00
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{{$l := Eval $n "-" 1}}
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2016-08-11 07:48:08 -05:00
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{{range $i, $v := .TreeNames}}
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<div class="divider"> / </div>
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{{if eq $i $l}}
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2022-06-27 15:58:46 -05:00
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<input id="file-name" value="{{$v}}" placeholder="{{$.locale.Tr "repo.editor.name_your_file"}}" data-editorconfig="{{$.Editorconfig}}" required autofocus>
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2023-03-24 05:35:38 -05:00
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<span data-tooltip-content="{{$.locale.Tr "repo.editor.filename_help"}}">{{svg "octicon-info"}}</span>
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2016-08-11 07:48:08 -05:00
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{{else}}
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2021-11-16 13:18:25 -05:00
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<span class="section"><a href="{{$.BranchLink}}/{{index $.TreePaths $i | PathEscapeSegments}}">{{$v}}</a></span>
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2016-08-11 07:48:08 -05:00
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{{end}}
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{{end}}
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2022-06-27 15:58:46 -05:00
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<span>{{.locale.Tr "repo.editor.or"}} <a href="{{$.BranchLink}}{{if not .IsNewFile}}/{{PathEscapeSegments .TreePath}}{{end}}">{{.locale.Tr "repo.editor.cancel_lower"}}</a></span>
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2016-08-24 23:35:03 -05:00
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<input type="hidden" id="tree_path" name="tree_path" value="{{.TreePath}}" required>
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2016-08-11 07:48:08 -05:00
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</div>
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</div>
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</div>
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<div class="field">
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<div class="ui top attached tabular menu" data-write="write" data-preview="preview" data-diff="diff">
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2022-06-27 15:58:46 -05:00
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<a class="active item" data-tab="write">{{svg "octicon-code"}} {{if .IsNewFile}}{{.locale.Tr "repo.editor.new_file"}}{{else}}{{.locale.Tr "repo.editor.edit_file"}}{{end}}</a>
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2023-03-24 01:12:23 -05:00
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<a class="item" data-tab="preview" data-url="{{.Repository.Link}}/markup" data-context="{{.RepoLink}}/src/{{.BranchNameSubURL}}" data-markup-mode="file">{{svg "octicon-eye"}} {{.locale.Tr "preview"}}</a>
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2023-03-26 00:25:41 -05:00
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{{if not .IsNewFile}}
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2022-06-27 15:58:46 -05:00
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<a class="item" data-tab="diff" data-url="{{.RepoLink}}/_preview/{{.BranchName | PathEscapeSegments}}/{{.TreePath | PathEscapeSegments}}" data-context="{{.BranchLink}}">{{svg "octicon-diff"}} {{.locale.Tr "repo.editor.preview_changes"}}</a>
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2016-08-15 03:42:20 -05:00
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{{end}}
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2016-08-11 07:48:08 -05:00
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</div>
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<div class="ui bottom attached active tab segment" data-tab="write">
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2023-02-18 23:06:14 -05:00
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<textarea id="edit_area" name="content" class="gt-hidden" data-id="repo-{{.Repository.Name}}-{{.TreePath}}"
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2023-03-24 01:12:23 -05:00
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data-url="{{.Repository.Link}}/markup"
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2016-08-11 07:48:08 -05:00
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data-context="{{.RepoLink}}"
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2023-03-24 01:12:23 -05:00
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data-previewable-extensions="{{.PreviewableExtensions}}"
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2019-10-16 14:28:41 -05:00
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data-line-wrap-extensions="{{.LineWrapExtensions}}">
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2018-04-19 19:25:15 -05:00
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{{.FileContent}}</textarea>
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2020-08-04 14:56:37 -05:00
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<div class="editor-loading is-loading"></div>
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2016-08-11 07:48:08 -05:00
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</div>
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2021-05-07 03:43:41 -05:00
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<div class="ui bottom attached tab segment markup" data-tab="preview">
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2022-06-27 15:58:46 -05:00
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{{.locale.Tr "loading"}}
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2016-08-11 07:48:08 -05:00
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</div>
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2020-05-14 11:06:01 -05:00
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<div class="ui bottom attached tab segment diff edit-diff" data-tab="diff">
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2022-06-27 15:58:46 -05:00
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{{.locale.Tr "loading"}}
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2016-08-11 07:48:08 -05:00
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</div>
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</div>
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2016-08-28 03:41:44 -05:00
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{{template "repo/editor/commit_form" .}}
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2016-08-11 07:48:08 -05:00
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</form>
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</div>
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2019-10-16 14:28:41 -05:00
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2023-04-23 04:24:19 -05:00
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<div class="ui gitea-confirm-modal modal" id="edit-empty-content-modal">
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<div class="header">
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2023-03-20 20:42:02 -05:00
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{{svg "octicon-file"}}
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2022-06-27 15:58:46 -05:00
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{{.locale.Tr "repo.editor.commit_empty_file_header"}}
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2019-10-16 14:28:41 -05:00
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</div>
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<div class="center content">
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2022-06-27 15:58:46 -05:00
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<p>{{.locale.Tr "repo.editor.commit_empty_file_text"}}</p>
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2019-10-16 14:28:41 -05:00
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</div>
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<div class="actions">
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2023-03-13 22:34:09 -05:00
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<button class="ui red basic cancel inverted button">
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2023-03-20 20:42:02 -05:00
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{{svg "octicon-x"}}
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2022-06-27 15:58:46 -05:00
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{{.locale.Tr "repo.editor.cancel"}}
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2023-03-13 22:34:09 -05:00
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</button>
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<button class="ui green basic ok inverted button">
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2023-03-20 20:42:02 -05:00
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{{svg "fontawesome-save"}}
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2022-06-27 15:58:46 -05:00
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{{.locale.Tr "repo.editor.commit_changes"}}
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2023-03-13 22:34:09 -05:00
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</button>
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2019-10-16 14:28:41 -05:00
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</div>
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</div>
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2016-08-11 07:48:08 -05:00
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</div>
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{{template "base/footer" .}}
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